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1
Pozniak, Stepan. "Soils in the modern changing world." Visnyk of the Lviv University. Series Geography, no. 49 (December 30, 2015): 275–79. http://dx.doi.org/10.30970/vgg.2015.49.8644.
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The most common known about biological and ecological function of soils is their fertility, or in a broader sense – the biological productivity of soil. Despite the very small thickness of soil cover on the Earth, which is just a thin layer on the surface, this layer is the most biologically productive part of the biosphere. It is proved that the most important impact soils provided on human health, especially because of anthropogenic pollution of soils. Particularly one of the most discussed is the problem of anthropogenic pollution of soils in urban areas near major highways, in areas of mining, including oil, gas, non-ferrous metals, building materials, as well as soil pollution by radioactive elements and pesticides. Key words: soils, soil science, soil degradation, soil pathology, healthy of soil.
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Bieganowski, Andrzej, Grzegorz Józefaciuk, Lidia Bandura, Łukasz Guz, Grzegorz Łagód, and Wojciech Franus. "Evaluation of Hydrocarbon Soil Pollution Using E-Nose." Sensors 18, no. 8 (July 30, 2018): 2463. http://dx.doi.org/10.3390/s18082463.
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The possibility of detecting low levels of soil pollution by petroleum fuel using an electronic nose (e-nose) was studied. An attempt to distinguish between pollution caused by petrol and diesel oil, and its relation to the time elapsed since the pollution event was simultaneously performed. Ten arable soils, belonging to various soil groups from the World Reference Base (WRB), were investigated. The measurements were performed on soils that were moistened to field capacity, polluted separately with both hydrocarbons, and then allowed to dry slowly over a period of 180 days. The volatile fingerprints differed throughout the course of the experiment, and, by its end, they were similar to those of the unpolluted soils. Principal component analysis (PCA) and artificial neural network (ANN) analysis showed that the e-nose results could be used to detect soil contamination and distinguish between pollutants and contamination levels.
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Donerian, Larisa G., M. A. Vodianova, and Zh E. Tarasova. "Microscopic soil fungi - bioindicators organisms contaminated soil." Hygiene and sanitation 95, no. 9 (October 28, 2019): 891–94. http://dx.doi.org/10.18821/0016-9900-2016-95-9-891-894.
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In the paper there are considered methodological issues for the evaluation of soil biota in terms of oil pollution. Experimental studies have shown that under the exposure of a various levels of oil pollution meeting certain gradations of the state and optimal alteration in microbocenosis in sod-podzolic soils, there is occurred a transformation of structure of the complex of micromycetes and the accumulation of toxic species, hardly typical for podzolic soils - primarily represantatives of the genus Aspergillus (A.niger and A. versicolor), Paecilomyces (P.variotii Bainer), Trichoderma (T.hamatum), the genus of phytopathogens Fusarium (F.oxysporum), dermatophytes of genus Sporothrix (S. schenckii) and dark-colored melanin containing fungi of Dematiaceae family. Besides that there are presented data on the study of microbiocenosis of the urban soil, the urban soil differed from the zone soil, but shaped in similar landscape and climatic conditions, and therefore having a tendency to a similar response from the side of microorganisms inhabiting the soil. Isolated complex of soil microscopic fungi is described by many authors as a complex, characteristic for soils of megalopolises. This allowed authors of this work to suggest that in urban soils the gain in the occurrence of pathogenic species micromycetes also increases against a background of chronic, continuously renewed inflow of petroleum hydrocarbons from various sources of pollution. Because changes in the species composition of micromycetes occurred in accordance with the increasing load of oil, so far as microscopic soil fungi can be recommended as a bioindicator organisms for oil. In the article there is also provided information about the distinctive features of modern DNA identification method of soil microscopic fungi and accepted in our country methodology of isolation of micromycetes with the use of a nutrient Czapek medium.
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Samokhvalova, V. L., A. I. Fateev, P. A. Samokhvalova, O. V. Mandryka, V. D. Bublyk, and O. Kutz. "Determination of oil and oil products total content in soils for monitoring of contamination and effectiveness of remediation." Fundamental and Applied Soil Science 16, no. 3-4 (July 4, 2015): 39–51. http://dx.doi.org/10.15421/041516.
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The method of determining the content of oil and petroleum products in the soils is substantiated through the use established by thermogravimetric curves optimum temperatures and time intervals thermal sample of contaminated soil, determination of total losses its weight on the appropriate formula which ensures the quantitative determination of total content level of hydrocarbons of oil and oil products in the soil with increased accuracy and quick testing of the method. In the methodical approach by combining individual components of the known methods thermogravimetry and gas chromatography, the distribution regularities of changes in the sample mass under the influence of thermal effects on a new class of objects with simultaneous production of a rapid method for determination of total content of petroleum hydrocarbons in soils, provided simplification soil samples algorithm analyzing for pollution monitoring and the remediation effectiveness of obtaining the economic use of resources. The invention belongs to the field of environmental protection, soil quality, namely to the ways of determine the content of oil and petroleum products (diesel, kerosene, fuel oil, etc.) in contaminated soils while of soils lands plot monitoring. The method can be used in the field of conservancy in the oil industrial complex in determining the degree of contamination of soil for rapid analysis of soil samples; in agroecology, soil ecological management for environmental monitoring of technologically contaminated soils of lands plots for various purposes and their using; in research practice - to investigate the thermal processes and properties of soils; elaboration of scientific and methodical bases of contaminated soils monitoring (diagnosis, assessment, forecast ecological state), environmental regulation of organic nature contaminants in soils; regulation of the using and soil remediation processes to improve quality. Based on the analysis of the scientific literature data and results of long-term experiments it was determined the optimal temperature range of 280–500 ○C with different temperature ranges of thermal evaporation the fractions of petroleum hydrocarbons. Series conducted modeling experiments with varying temperature, time, sample the soils and the changing quantitative and qualitative composition of hydrocarbons in contaminated soils, the total petroleum hydrocarbons thermogravimetric method has been found that the thermal degradation of contaminated soils samples formed various fractions of hydrocarbons, which leads to increased losses mass Dm contaminated soil sample to obtain thermogravimetric curves. By the method of gas chromatography, in the range of 100–200 ○C it is set the selective extraction of lighter fractions of petroleum and petroleum products in the soil; in the range of 280–350 ○C – it is noted a sharp increase in the rate of decomposition of oil saturated hydrocarbons (C10–C40) with intensive gas evolution, the formation of a mixture of reaction products is a significant amount of unsaturated hydrocarbons. Thus, the use of established ranges of determining the optimum temperature desorption fractions of petroleum hydrocarbons and their thermal degradation of soil samples for thermolysis with simultaneous identification of the total content of oil and petroleum products in the soil, it is possible to determine the total amount of oil hydrocarbons fractions in soil as the amount of oil hydrocarbons. The proposed algorithm method is suitable for the soils of different genesis. It is determined that the consistent increase in temperature is a necessary procedure for the identification of pollution if soil sample analysis of the expected low concentrations of oil and petroleum products and water content in soils of different types and different size distribution of more than 5 % of oil production zones. By evaluating the flow of thermal processes in the surveyed contaminated and uncontaminated soil samples the temperature ranges degradation of petroleum hydrocarbons is determined. Their using, as an indicator, significantly reduced the timing of selection of optimal technological parameters of thermal oils in the soils for determining the total content of oil and petroleum products in the soils, pollution monitoring and remediation efficiency control.
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AITKELDIYEVA, Svetlana, Saule DAUGALIYEVA, Anna ALIMBETOVA, Elmira FAIZULINA, and Amankeldi SADANOV. "MICROBIAL DIVERSITY OF THE CONTAMINATED SOILS IN KAZAKHSTAN OILFIELDS." Periódico Tchê Química 17, no. 35 (July 20, 2020): 908–23. http://dx.doi.org/10.52571/ptq.v17.n35.2020.75_aitkeldiyeva_pgs_908_923.pdf.
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Oil and oil products adversely affect both the biodiversity of the microorganisms and the soil function. In oil-contaminated soils, unique bacterial communities develop that are adapted to pollution. In this work, the bacterial structure and diversity of the microbial community have been studied in samples of oil-contaminated soils in Kazakhstan deposits using the Illumina MiSeq sequencer. The results of the study showed that the representatives of the following bacterial phyla dominated in the selected soil samples: Proteobacteria, prevailing in oil-contaminated soils (up to 48%), Actinobacteria (up to 29.33%), Firmicutes (up to 25.74%), Bacteroidetes (up to 33.28 %). The representatives of Planctomycetes, Verrucomicrobia, Chloroflexi (0.76%-4.62%) phyla were found in smaller amounts. All the uncontaminated soils were dominated by Micrococcaceae, Flexibacteraceae, Sphingomonadaceae, Planococcaceae, Flavobacteriaceae families, contaminated ones – by Halomonadaceae, Flavobacteriaceae, Alteromonadaceae, Dietziaceae, Pseudomonadaceae, Bacillaceae, Xanthomonadaceae, Anaerolinaceae, Mycobacteriaceae and Peptococcaceae families. At the genus level, samples of uncontaminated and contaminated soils also demonstrated significant diversity. The dominant bacterial genera in the samples of the uncontaminated soil were Hymenobacter, Arthrobacter, Gillisia. In contaminated soils of three deposits the microorganisms of the Halomonas, Marinobacter, Pseudomonas (mostly in 2KO soil sample), Bellilinea and Mycobacterium (mostly Md sample) genera were spread more widely; and a very large population of the microorganisms of the Halomonas genus was found in the contaminated soil sample from the Atyrau region. A comparison of the taxonomic structure of microbial communities of oil-contaminated soils indicates that the composition of the microbial population changes depending on the degree of oil pollution. Samples of uncontaminated background soils were characterized by higher bacterial diversity than samples of contaminated soils. The microorganisms belonging to the dominant phyla were mostly associated with the decomposition of oil hydrocarbons. The characterization of the bacterial communities living in the contaminated soils and the assessment of their ability to decompose oil can potentially be a guide for bioremediation of contaminated soils.
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Sultanova, G., and M. Abdullayeva. "Treatment Method of the Soil, Polluted by Oil and Oil Products in Climatic Conditions of Azerbaijan." Bulletin of Science and Practice 7, no. 7 (July 15, 2021): 31–38. http://dx.doi.org/10.33619/2414-2948/68/04.
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In this work, two biotechnological technologies were tested to restore contaminated soils using microorganisms. One technology with the activation of natural microflora and a technology that requires the introduction of oil-oxidizing microorganisms in the form of a biological product. When using biological methods of cleaning soil from oil pollution in combination with agrotechnical methods, the natural microflora of oil-polluted soils was activated. The introduction of a biological product under these conditions makes it possible to increase the intensity of soil cleaning from oil pollution as a result of the cleaning time in comparison with the natural microflora, it can be reduced by 3–4 months. It should be noted that the methods of cleaning oil-contaminated soils using microorganisms in arid soil-climatic conditions are most effective in the spring and until mid-summer. In the summer, due to high temperatures, the activity of microorganisms decreases. Microorganisms become active again in the autumn. During this period, the activity of microorganisms is higher than in the spring period and this is due to the fact that before the summer period the number of microorganisms increases and after a slight decrease in activity, intensive biodegradation of oil pollution continues again.
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Beykzade, Mohammad, and Sepide Beykzade. "Management Evaluate and Review Solutions to Reduce Soil Pollution." SPECTA Journal of Technology 4, no. 3 (October 28, 2020): 1–8. http://dx.doi.org/10.35718/specta.v4i3.214.
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Crude oil is a complex natural mixture that is one of the main sources of energy for life. Oil pollution has unpleasant effects on the environment that can cause many problems for human beings, since the toxicity and carcinogenesis of oil compounds for living creatures and humans are obvious and proven. The oil-contaminated soils and waters are one of the most important environmental issues. Scientists have proved different ways to clean up oil pollution throughout history. In this research, ways to reduce and eliminate pollution of crude oil in the soil are going to be studied. The following methods are suggested : The use of electrochemical methods for reducing the aromatic contamination of crude oil, The use of biodegradable and synthetic detergents for the removal of oil hydrocarbons, bioremediation of soil contaminated with plants. Finally, by reviewing the results obtained, solutions can be found to clean up the pollution of crude oil from the soil, Because cleaning up crude from soil reduces environmental degradation.
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Romaniuk, O. I., L. Z. Shevchyk, and T. V. Zhak. "THE CHANGE OF OIL QUANTITY AND DYNAMICS OF SOIL PHYTOTOXICITY AT THE OIL POLLUTION." Ecological Safety and Balanced Use of Resources, no. 2(18) (July 26, 2018): 7–14. http://dx.doi.org/10.31471/2415-3184-2018-2(18)-7-14.
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The authors of the article study the regularities of oil quantity change and dynamics of soil phytotoxicity at the oil pollution. The article describes the sequence of study of changes in the amount of pollutant (oil) in the soil. The study was carried out in modeling, laboratory and micro-field experiments. Two types of soils (black soil and turf podzolic soil) were used in the studies. The experiments were carried out in at least three biological and three analytical repetitions. Statistical processing of the results was carried out using Microsoft Office Excel software package.
The investigation of evaporation of oil from the soil (when the initial concentration of oil in the soil was 10% and the initial moisture of the soil was 20%) shows that the intense evaporation of the liquid composition (oil+water) occurs within the first 12 days and the intensity of evaporation from black soil is higher than from turf podzolic soil.
The phytotoxicity of oil contaminated turf podzolic and black soils, at different humidity, in the process of natural weathering of oil was determined using such plant test objects as L. usitatissimum, H. annuus, F. vulgare. The significant decrease of phytotoxicity, more than twofold compared with the initial one, lasts up to 45 days. After the 45th day further reduction of phytotoxicity is not observed. After the 45th day even the insignificant growth of phytotoxicity is observed. Obviously, this growth happens due to the formation of more toxic derivatives of oil in the process of natural oxidation.
It is proved that under natural conditions within the first days there is an intense evaporation of volatile components of oil, which lasts for 45 days in average. At the same time, from 25% to 50% of oil is weathered from the soil depending on its type and the toxicity decreases by 2 approximately. Oil pollution spreads through the profile of the soil and in 6 months, at an initial contamination of 10%, it is observed at a depth of 30-40 cm. The least contaminated is the layer of soil at a depth of 10-20 cm. Therefore, the rehabilitation of soils by phytotherapeutic methods should be carried out 45 days after the pollution, and herbs should be planted at a depth of 10-20 cm.
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Gurbanov, E. M., and A. A. Akhundova. "Phytoecological indicators for biological recultivation of soils polluted with oil in the Absheron peninsula." Biosystems Diversity 17, no. 2 (July 2, 2009): 3–8. http://dx.doi.org/10.15421/010937.
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Phytoecological indicators of polluted soils of Amirov Oil-and-Gas Production Department (Garadag district,Baku) were studied. Phytocenological and biomorphological analysis of flora was done with the aim of further biological rehabilitation of Absheron peninsula. Oil products (black oil, boring waters, etc.) pollution turns the plant cover into a dead mass. Decontamination of soil and rehabilitation of microbial community improve the soil’s fertility. Wild and cultured plant indicators may be used in biopurification of the soils polluted with oil products. Sowing of the fodder crops followed by the technical remediation forms the clean areas of higher productivity.
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Knapcová, Ivana, Helena Hybská, Hana Ollerová, Dagmar Samešová, Ondrej Vacek, Martina Lobotková, Darina Veverková, and Tamás Rétfalvi. "Effect of Non-polar Extractable Substances on Soils and on Vegetation Cover from old Environmental Burdens." Acta Silvatica et Lignaria Hungarica 16, no. 2 (2020): 95–107. http://dx.doi.org/10.37045/aslh-2020-0007.
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This case study focuses on the assessment of the effect of soil pollution by gudrons disposed in landfills. Waste products are acid tars, called "gudron" in the Slovakian terminology. Gudrons are waste products resulting from sulphonation technologies used in oil processing. In the Slovak Republic, gudron landfills are risk localities and are classified as old environmental burdens. Non-polar extractable substances (NES) as well as the activity of soil cellulase and basal soil respiration in soil samples taken from four different distances from the pollution sources were analysed. The effect of landfills on vegetation was assessed by recording the number and cover of plants on the sampling points. Long-term and gradual gudron contamination of the surrounding areas from both landfills is evident and has been proven by monitored NES concentrations. The pollution progress was predicted by the use of logistical function (based on the NES indicator) due to the increasing distance from the sources of pollution. Comparison of these two areas showed markedly higher oil substances pollution in the soil samples taken from the surroundings of the landfill Predajna 2. Determined content of NES did not meet the criteria of permissible concentration in soil samples, not even at a distance of 150 m (< 0.1 mg kg-1 in compliance with the Law No. 220/2004 Coll.). When determining basal soil respiration, the production of CO2 corresponded with oil pollution determined by the NES indicator. High concentrations of NES hinder enzymatic cellulase activity. The decomposition of cellulose occurs only at lower concentrations of NES. It is possible to range the soils of lower NES concentrations (soils taken from the distances of 70 m and 150 m from Predajna 1; 110 m and 150 m from Predajna 2) among the soils with weak or middle soil cellulose activity. This indicates that microbial activity was detected in the soil samples, and the values of this microbial activity were higher due to a decrease of inhibitors caused by oil pollution. That total surface vegetation cover increases as distance from the landfills increases indicated the validity of these facts.
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Abdulhamid, Sazan Nariman, Ahmed Mohammed Hasan, and Shuokr Qarani Aziz. "Solidification/Stabilization of Contaminated Soil in a South Station of the Khurmala Oil Field in Kurdistan Region, Iraq." Applied Sciences 11, no. 16 (August 14, 2021): 7474. http://dx.doi.org/10.3390/app11167474.
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Currently, the primary source of pollution is crude oil production. Crude oil production has dramatic consequences for farmlands, communities, and in terms of the construction materials required for earthworks. The main aims of the present study were to reduce the level of pollution caused by oil production in the Khurmala soil and then reuse it as a construction material. Soil remediation using the solidification/stabilization method was applied in the field using Portland limestone cement (CEM II). The performance of using CEM II in the remediation process was then investigated in the laboratory by taking the natural, contaminated, and treated soils from the Khurmala site. Furthermore, the results of the soils were compared with their corresponding soil samples using ordinary Portland cement (OPC). The comparison was performed by investigating the physical, chemical, and mechanical properties of the soils. The discussion was supported using the scanning electron microscopy (SEM) results. Chemical and SEM results revealed that there were fourfold and tenfold decreases in the percentage of oil and grease using OPC and CEM II, respectively, confirming the higher performance of using CEM II over OPC. The values of the coefficient of permeability, shear strength parameters, and California bearing ratio of the treated soils were significantly improved, compared to those of the contaminated soils.
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Леднев, Andrey Lednev, Скворцова, and Irina Skvortsova. "IMPACT OF OIL POLLUTION ON TOXICITY LEVEL OF PEAT SOILS." Vestnik of Kazan State Agrarian University 10, no. 4 (December 25, 2015): 70–75. http://dx.doi.org/10.12737/17621.
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Based on the data of the laboratory experiment it was found, that the greatest impact of oil pollution has had on test objects Paramecium caudatum and lyophilized luminescent bacteria “Ekolyum”. They recorded the appearance of toxic effects by increasing the oil content in peat soils above the level of 3035 milligram per kilogram. Thus, the oil content equal to 3035 milligram per kilogram (3.0 gramm per kilogram) may be recommended as a standard acceptable residual oil and petroleum products in the peat soils of land for forestry purposes to the conditions of the Udmurt Republic. We recommend use the norm equal to the 2.0 gramm per kilogramm of peat soil for agricultural land. When conducting toxicology tests, it is necessary to take into account that uncontaminated peat also has a certain toxic effect on some test objects (Paramecium caudatum).
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Cherdakova, Alina S., and Svetlana V. Galchenko. "Change of phytotoxicity of soils contaminated with oil products in the process of their microbiological remediation during the application of humic preparations." RUDN Journal of Ecology and Life Safety 28, no. 4 (December 15, 2020): 336–48. http://dx.doi.org/10.22363/2313-2310-2020-28-4-336-348.
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The article presents the results of experimental studies on the assessment of the phytotoxicity of soils contaminated with oil products of various fractions (gasoline, diesel fuel, fuel oil) in the process of their microbiological remediation with the introduction of humic preparations. The studies were carried out under the conditions of a vegetation experiment, in which the processes of bioremediation of soils contaminated with various oil products were simulated using microbiodestructors and humic preparations (Ekorost and Gumi). It has been established that the implementation of bioremediation measures using microbio-destructors does not allow for complete detoxification of soil contaminated with various oil products. The manifestation of detoxifying properties of humic preparations in relation to oil-hydrocarbon pollution of soils during their bioremediation was revealed. The severity of these properties varies and depends on the type of oil-polluting product, its concentration, as well as on the properties of the preparations themselves.
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Shevchyk-Kostiuk, Lesya, Olga Romaniuk, and Andriy Banya. "Improving the efficiency of phytoremediation technologies of oil-contaminated soils with the participation of natural sorbents-meliorants." Scientific Horizons 23, no. 10 (October 28, 2020): 7–16. http://dx.doi.org/10.48077/scihor.23(10).2020.7-16.
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Phytremediation is considered to be a promising and environmentally friendly way to restore oil-contaminated soils. However, the multicomponent nature of oil pollution, its low bioavailability, high stability, hydrophobicity, and toxicity require a comprehensive approach to its implementation. The purpose of the study is to investigate the influence of different types of sorbents-meliorants and their complexes with remediation agents on improvement of the efficiency of phytoremediation technologies of oil-contaminated soils. The study established that the most effective plants for phytoremediation of oil-contaminated soils are Vicia faba var. Minor, Pisum sativum L., Avena sativa L., which are the least exposed to toxic effects of oil among the studied crops, and better adapt to the conditions of oil-contaminated soils. The influence of sorbent-meliorants such as glauconite, zeolite, sawdust, and sunflower husk on the process of phytoremediation of oil-contaminated soils (oil content 5%) was studied. It was proven that sunflower husk is the most promising and available agent for accelerating phytoremediation. The study examined the individual and combined influence of mineral fertilisers, biogenic surfactants of microbial origin, and humates on the growth of Avena sativa plants under conditions of oil pollution, as well as on the process of soil restoration. The best results are obtained by application of the above agents in combination with sunflower husk. This complex (sunflower husk + mineral fertilizers + surfactants of microbial origin / humates) has a positive effect on Avena sativa plants – reduces the rate of oxidative stress, which indicates an improvement in the adaptability of plants to oil-contaminated soil; growth parameters increase; plant biomass accumulation; the total content of chlorophyll a+b increases; and there is an improvement in soil properties by reducing the oil content in soil, reducing phytotoxicity, increasing dehydrogenase activity
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Etuk, Etiese, Kingsley C. Ogboi, C. A. Nwadinigwe, and Wali Elekwachi. "A Comparative Analysis of Bioremediation of Hydrocarbon Polluted Soil in the Island Forest Ecosystem and the Low land Forest Ecosystem in the Niger Delta through Enhanced Natural Attenuation Process (ENAP)." Advances in Social Sciences Research Journal 8, no. 1 (January 17, 2021): 81–93. http://dx.doi.org/10.14738/assrj.81.9027.
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The Niger Delta region has witnessed environmental pollution arising from oil activities over the years of oil exploration and production. Soil fertility in both the Lowland Forest Ecological Zone and Island Forest Ecological Zone were investigated to establish the consequences of oil pollution on the soil and remedial actions to restore back quality and fertility of the soil. A suitable cost effective and environmentally friendly technology to handle the pollutions in the Niger Delta region can be found in Remediation by Enhanced Natural Attenuation Process (ENAP) which facilitates the activities of microorganisms to biodegrade the hydrocarbon impacted soil. The study compared the bio-physicochemical parameters of the oil spill polluted soil with particular reference to areas of oil production of the two Ecological Systems with those of the unaffected soil as well as their response to bioremediation interventions using ENAP. The results demonstrated significant decrease in the values of the key indicator parameter, the Total Petroleum Hydrocarbons (TPH). But for the unenhanced process, the result showed low level of reduction of TPH values for the polluted soils. A degradation trend was demonstrated with time leading to significant TPH reductions and improved key soil fertility indices. The result showed that the level of the nutrient status of soil in the region can be improved through the natural attenuation process.
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Okolelova, Alla, Vladimir Zheltobryukhov, Elena Nefedieva, Galina Egorova, Veronika Kaplya, and Anna Merzlyakova. "Peculiarities of assessment of content of oil products in soils." E3S Web of Conferences 161 (2020): 01100. http://dx.doi.org/10.1051/e3sconf/202016101100.
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The permissible content of oil and petroleum products in the soil must have a reasonable regional standard. It should be based on presence of specific and non-specific organic compounds in each specific soil, as well as the natural conditions that cause the ability of the soil to self-cleaning, and its provincial characteristics. The value of concentrations of petroleum products in the soil at a biologically safe level has not been established now. It is impossible to justify the maximum permissible concentration of petroleum products in the soil, since they include compounds that are a necessary component of any soil. We calculated the accumulation coefficient for 106 oil fields in 15 geographical regions of the Russian Federation. The accumulation coefficient varies in a narrow range of 1.19-1.21. It is necessary to compare the results of analysis of contaminated soil with the soil before pollution or with the background to establish the fact of a decrease in soil fertility in pollution. We believe it mandatory to consider the background concentration of petroleum products, which is understood as non-specific organic compounds of soils. The question of rationing of petroleum products in the soil remains open to the present time.
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Kulikova, O. A., E. A. Mazlova, D. I. Bradik, E. P. Kudrova, and N. V. Tkachev. "Oil pollution of the western Gulf of the Ob coast." Arctic and Antarctic Research 65, no. 1 (April 8, 2019): 105–12. http://dx.doi.org/10.30758/0555-2648-2019-65-1-105-117.
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The article reports the results of the summer 2018 expedition to Cape Kamenny(of the Ob bay, Yamalo-Nenets Autonomous Region) and the nearby non-functioning oil product supply facility (OPSF).The aim of the study was to monitor the current environmental situation and assess the level of oil pollution of environmental objects on these territories. The field and laboratory studies revealed the need to treat and remediate the oil-polluted soils, water bodies and wetlands.The field surveys of the territories showed the presence of visible oil polluted sites. The results of the laboratory tests revealed an excess of maximal permissible concentration (MPC) levels (1.3 – 6.2 MPC) for the water bodies located near the sources of oil pollution. The soil samples near the OPSF demonstrate a significant excess of oil products content (up to 1474 times). The soils sampled at Cape Kamenny are characterized by smaller content of oil products.Since the non-functioning OPSF is situated on a territory that has always been poluted by oil, it seems necessary to develop a land remediation plan to rehabilitate the site and to prevent a further pollution of the adjacent territories due to the migration of the pollutants.The oil pollution levels established for Cape Kamenny territory indicate a fairly high level of anthropogenic pressure in this area. Due to the low comparatively low soil stability in the area, it appears necessary to augment the measures for controlling the oil products leakage and spills at all the potentially hazardous objects.
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Belozertseva, I. A., E. A. Istomina, and S. V. Solodyankina. "Mapping of soils and the content of chemical elements in the territory of the Kovykta gas-condensate field." Geodesy and Cartography 923, no. 5 (June 20, 2017): 17–25. http://dx.doi.org/10.22389/0016-7126-2017-923-5-17-25.
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In this paper, the chemical composition of soils in the territory of the Kovykta gas condensate field is characterized on the basis of research peformed in 2004–2012. The presented results provide for a better understanding of the ecological state of soil cover, its resilience to anthropogenic impacts; and its possible disturbance caused by drilling and laying geophysical profiles. The degree of pollution of soil coverBa, Fe, Mn, Pb, Cd, Cu, Ni, Cr, Zn and is described by mineral oil. The analysis of soil borehole platforms pollution as a whole has shown pollution by their chemical elements which concern to three classes of toxicity
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Sultanova, Milyausha Ilnurovna, Nikolai Aleksandrovich Shmelev, and Aysylu Airatowna Islamova. "Assessment of oil companies impact on the ecological status of surrounding area soils." Samara Journal of Science 6, no. 4 (December 1, 2017): 76–79. http://dx.doi.org/10.17816/snv201764115.
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The paper analyzes the study results of the soil layer on the territory of oil and gas companies. Assessment of anthropogenic impact of oil on key chemical and biological parameters of soil is given on the basis of experimental research on the territory of the enterprise. The objects of the study was background (uncontaminated) and contaminated soil. The impact of oil pollution in natural conditions was studied by means of mapping properties of contaminated soils with their background counterparts. Soil cover is the main element of the landscape - the first assumes the environmental impact. Because of mechanical disturbance and chemical pollution there is a gradual degradation of the soil, which has become one of the major environmental problems of oil and gas complex. The research was conducted in April-May 2017. The analysis shows that the morphological characteristics of the soil have changed significantly. The analysis of the soil phytotoxicity shows a high degree of soil phytotoxicity. The percentage of humus is less than the average content in the upper soil horizon. The analysis of the chemical composition shows a relatively low level of soil contamination with heavy metals, the exception was the concentration of cadmium and cobalt. The oil content does not exceed the MPC.
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Kovaleva, E. I., and A. S. Yakovlev. "The Model of Environmental Rationing of Oil-Contaminated Soils by Changing Some Biogeocenotical Functions." Ecology and Industry of Russia 22, no. 11 (November 2, 2018): 34–39. http://dx.doi.org/10.18412/1816-0395-2018-11-34-39.
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The model of ecological rationing of oil-polluted soils is substantiated according to the function of providing the soil with conditions for biological activity according to separate biological indicators sensitive to oil products, in particular, catalase activity and survival of pot worms. Petroleum products were rationed in different types of soils of the Sakhalin region: high-moor peat bog; humus podzolic surface-glue; alluvial meadow acidic; brown forest acid podzolic in model series with different levels of pollution. The establishment of a standard value at which the functioning of the studied soils changes, was carried out according to the criterion of changing the values of selected biological parameters corresponding to the change in the rate of soil functioning with increasing oil concentration according to the dose-effect model. For the standard of soil quality for petroleum products in the regions of oil production, the value of petroleum products was used, leading to a significant deviation of the values of biological indicators from background values determined by the same biological indicators. For the permissible residual content of oil products in soils, in which the soil maintains stable functioning, performs environmental functions, a 30% change in the functioning of the soil from the background analogue according to the studied biological indicators was taken. Calculations on the rationing of oil content in soils can be performed using the non-linear regression model described by the logistic curve.
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Remelli, Sara, Pietro Rizzo, Fulvio Celico, and Cristina Menta. "Natural Surface Hydrocarbons and Soil Faunal Biodiversity: A Bioremediation Perspective." Water 12, no. 9 (August 22, 2020): 2358. http://dx.doi.org/10.3390/w12092358.
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Hydrocarbon pollution threatens aquatic and terrestrial ecosystems globally, but soil fauna in oil-polluted soils has been insufficiently studied. In this research, soil hydrocarbon toxicity was investigated in two natural oil seepage soils in Val D’Agri (Italy) using two different approaches: (i) toxicological tests with Folsomia candida (Collembola) and Eisenia fetida (Oligochaeta) and (ii) analysis of abundance and composition of micro- and meso-fauna. Soil sampling was done along 20 m-transepts starting from the natural oil seepages. Toxicological testing revealed that no exemplars of F. candida survived, whereas specimens of E. fetida not only survived but also increased in weight in soils with higher PAH concentrations, although no reproduction was observed. Analysis on microfauna showed that Nematoda was the most abundant group, with distance from seepages not affecting its abundance. Arthropoda results showed that Acarina, Collembola and Diptera larvae represented the most abundant taxa. The highest divergence in community composition was found between soils situated near seepages and at 5 m and 10 m distance. Arthropoda taxa numbers, total abundance and Acarina were lower in soils with high PAH concentration, while Diptera larvae were not significantly affected. Earthworms, together with Nematoda and Diptera larvae, could therefore represent ideal candidates in PAH degradation studies.
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Simmons, H. B. "SALINITY PROBLEMS." Coastal Engineering Proceedings 1, no. 2 (January 1, 2000): 7. http://dx.doi.org/10.9753/icce.v2.7.
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The basic sources of salt-water pollution are the ocean, industry, and the soil. The ocean is responsible for the intrusion of salt water into rivers, canals, and lakes, and for infiltration of sea water into aquifiers which are tapped by wells. Industry causes salt-water pollution by discharging the brine of mines, oil wells, tanneries, and other industrial wastes into rivers and lakes. The soil is a source of salt-water pollution because of the run-off from chloride-bearing soils and the solution of soluble rocks. The most common and important source of salt-water pollution is the ocean, and is the only source considered in this paper.
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Udousoro, Imaobong, I. U. Umoren, J. M. Izuagie, C. U. Ikpo, S. F. Ngeri, and E. S. Shaibu. "Soil Invertebrates As Bio-Monitors of Toxic Metals Pollution in Impacted Soils." Current World Environment 10, no. 2 (August 24, 2015): 367–85. http://dx.doi.org/10.12944/cwe.10.2.02.
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The bio-indicator potentials of two invertebrate species, Eudrilus eugeniae (earthworm) and Pachybolus ligulatus (millipede) in toxic metals impacted soils in Akwa Ibom State, in the Niger Delta region of Nigeria were assessed. The study involved collection of Eudrilus eugeniae and Pachybolus ligulatus, and their site soil samples from different impacted and non-impacted soils in ten locations spread over four Local Government Areas. Toxic metals (Pb, Fe, Zn, Ni and Cd) in soils and in the bio-indicator organisms were analysed using Atomic Absorption Spectrometry, after acid digestion. Geo-accumulation Index (Igeo) was used to measure the extent of soil pollution; Bio-Accumulation Factor (BAF) to compute the metal uptake from soil by bio-indicators; and multivariate statistics to identify interrelationships among metals and the pollution sources. Metals in all soils were higher than the background levels, and were classified as unpolluted to very strongly polluted. Pb, Fe, Zn and Cd were higher in Eudrilus eugeniae, and Ni in Pachybolus ligulatus at 0.05 level. The organisms absorbed all metals (BAF<1), but Eudrilus eugeniae accumulated Cd and Fe and Pachybolus ligulatus, Ni and Fe (BAF>1). Metals were clustered into three (Eudrilus eugeniae) and two (Pachybolus ligulatus) dissimilar groups. Two principal components extracted, each for Eudrilus eugeniae and Pachybolus ligulatus accounted for 64% and 72% of total variations, respectively. The invertebrates exhibited varying levels of affinity in metals uptake. Eudrilus eugeniae appeared to accumulate Pb, Fe and Cd more, and could serve as a better bio-indicator for monitoring these metals. Pachybolus ligulatus accumulated 3-folds more Ni, and could provide a monitoring tool especially in agriculture, in the Niger Delta Region of Nigeria, plagued by crude oil pollution of its land and water bodies.
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Journal, Baghdad Science. "Study of pollution by heavy elements in some parts of Baghdad." Baghdad Science Journal 7, no. 2 (June 6, 2010): 955–62. http://dx.doi.org/10.21123/bsj.7.2.955-962.
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The objective of the present work is to measuring the concentration of heavy elements (Pb, Cd, Zn, As) in Baghdad's soil city and indication to the probable sources of pollution as well as comparing the concentration of heavy elements with local and international ranges. The Sampling and analyzing conducted in the present work included ( 15 ) Samples from Baghdad city ( three samples for each location ).The rates of heavy elements in soil samples were as following:. Pb ( 67.5 ) ppm, Cd ( 4.11 ) ppm , Zn ( 77.9 ) ppm , As ( 4.64 ) ppm. According to the results, we find increasing in the concentrations of the heavy elements ( Pb, Cd, Zn ) in soils and decreasing in ( As ).We conclude that the main reason behind the increasing of the concentrations of heavy elements in Baghdad city's soils is due to the anthropogenic activities like the domestic wastes, the products released from the combustion of fuel containing ( tetraethyl lead ), and the industrial wastes (solid , liquid and gaseous) especially from oil industries. Other important factor that added to the pollution with these heavy elements is the three successive wars that Iraq had subjected. The explosion of rockets and bombs contributed mainly to the pollution of soil.
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Khalilova, Diana, and Dina Yunusova. "Analysis of oil-contaminated soil cleaning methods in emergencies at oil and gas facilities and in transport." Bulletin of scientific research results, no. 1-2 (July 17, 2017): 23–31. http://dx.doi.org/10.20295/2223-9987-2017-1-2-23-31.
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Objective: Environment contamination with oil and concomitant contaminants is a burning environmental issue in many parts of Russia. Oil contamination has an effect on the overall set of soil morphological, physical, physicochemical and biological characteristics that govern its fertile and ecological functions. To reach a higher environmental safety level in the Russian oil and gas industry and transport, a multiple factor assessment of the existing oil-contaminated soil cleaning methods has been performed. Methods: Comparison of the existing oil-contaminated soil cleaning methods: mechanical, physicochemical and biological ones. Based on the systems analysis methods, phytoremediation is found to have a high potential for cleaning soils and groundwater contaminated with hydrocarbons as the above method is as a rule cheaper than any alternative soil cleaning methods. Plants do not deteriorate soil or add any secondary pollution as compared with conventional methods. In addition, the public has a positive attitude towards phytoremediation regarding it as an eco-friendly approach to cleaning contaminated soils. Results: Basic physiological and biochemical processes in plants causing a lower hydrocarbon concentration in soil are discussed. Criteria for selection of plants for phytoremediation are identified. The primary limitations on use of phytoremediation include a long soil remediation period, a significant impact of local climatic and hydrological conditions on plant growth, a plant exposure area is limited to less than 0.9 m from the soil surface (root layer), by an impossibility of growing plants in heavily contaminated soils, and also probable ingress of contaminants into food chains. It is shown that large-scale implementation of the method is held back as the method mechanisms are not sufficiently investigated. Practical importance: Phytoremediation is found to have a high potential for cleaning oil-contaminated soils and groundwater.
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Shulaev, Nikolay S., Valeriya V. Pryanichnikova, Ramil R. Kadyrov, Inna V. Ovsyannikova, Nikolay A. Bykovsky, and Raisa M. Damineva. "Electrochemical cleaning of soils with different concentrations of oil pollution using a single source of electrical voltage." SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATION 10, no. 6 (November 30, 2020): 674–80. http://dx.doi.org/10.28999/2541-9595-2020-10-6-674-680.
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The most essential scientifific and practical task in the area of ecological safety of pipelines operation is the development and improvement of methods of purifification and restoration of oil-contaminated soils. One of the most effificient and cost effective methods is electrochemical purifification, that does not require the use of expensive chemical reagents and soil excavation. However, the consideration of non-uniform contamination of various soil sections is required. The article examines the features of the organization and technological infrastructure for electrochemical purifification of non-uniformly contaminated soils when using a single electrical energy source, a method for calculating the design parameters of the corresponding installation is proposed. Effificient purifification of non-uniformly contaminated soil when using a specifified voltage is possible through the use of different-sized electrodes. For each soil type, the amount of transmitted electric charge required for soil purifification is determined by the concentration of the contaminant. Allocation of cathodes and anodes as parallel batteries and their connection using individual buses is an effective and energy-effificient solution, since an almost-uniform electric fifield is created in an inter-electrode space, thus allowing the reduction of the interelectrode resistance of the medium.
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Pichtel, John. "Oil and Gas Production Wastewater: Soil Contamination and Pollution Prevention." Applied and Environmental Soil Science 2016 (2016): 1–24. http://dx.doi.org/10.1155/2016/2707989.
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During oil and natural gas production, so-called “produced water” comprises the largest byproduct stream. In addition, many oil and gas operations are augmented via injection of hydraulic fracturing (HF) fluids into the formation. Both produced water and HF fluids may contain hundreds of individual chemicals, some known to be detrimental to public health and the environment. Oil and gas production wastewater may serve a range of beneficial purposes, particularly in arid regions, if managed correctly. Numerous treatment technologies have been developed that allow for injection, discharge to the land surface, or beneficial reuse. Although many papers have addressed the effects of oil and gas production wastewater (OGPW) on groundwater and surface water quality, significantly less information is available on the effects of these fluids on the soil resource. This review paper compiles fundamental information on numerous chemicals used and produced during oil and gas development and their effects on the soil environment. Additionally, pollution prevention technologies relating to OGPW are presented. An understanding of the effects of OGPW on soil chemical, physical, and biological properties can provide a foundation for effective remediation of OGPW-affected soils; additionally, sustainable reuse of oil and gas water for irrigation and industrial purposes may be enhanced.
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Ikhajiagbe, Beckley, Kingsley Enerijiofi, and Paul Umendu. "Mycorestoration of crude oil polluted soil using Pleurotus tuberregium." Studia Universitatis Babeş-Bolyai Biologia 66, no. 1 (June 30, 2021): 73–84. http://dx.doi.org/10.24193/subbbiol.2021.1.02.
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Crude oil contamination is known to cause unwholesome damage to man, his environment comprising of soil, air and water bodies as well as other forms of life. This study determined the effect of crude oil polluted soils on the composition of different microorganisms and plants and the growth of Pleurotus tuberregium. Oil polluted soils in bowls were amended with sawdust from Brachystegia nigerica as substrate. Fruiting bodies and the diameter of the mushroom cap were found to increase with increasing weeks of exposure to oil as against the control which had no fruiting bodies throughout the experiment. Pepperomia pellucida was found to be the predominant weed (n = 20), followed by Asystasia gangetica (n = 11). The bacterial and fungal counts were higher at the oil polluted soil attached to sclerotia than the control. The growth of Pleurotus tuberregium in the polluted soil samples showed its ability to degrade and utilize hydrocarbon as the source of carbon and energy, thereby remediating the contaminated soil environment. This work has shown that the fungus has bioremediation and pollution control capacity.
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Zholobak, Galina, Stanislav Dugin, Oksana Sybirtseva, and Yelizaveta Dorofey. "Research of oil polluted soil and vegetation cover grown in laboratory by hyperspectral remote sensing method using the ASD FieldSpec 3FR Spectroradiometer." Ukrainian journal of remote sensing, no. 19 (December 31, 2018): 12–29. http://dx.doi.org/10.36023/ujrs.2018.19.141.
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The development of oil extraction and refining industry causes the environment pollution primarily the aquatic and terrestrial ecosystems. The vegetation and soils as the components of terrestrial ecosystems expose to oil pollution especially. The research of oil-polluted soil and vegetation cover grown in laboratory by hyperspectral remote sensing method using the ASD FieldSpec® 3FR spectroradiometer is performed. The vegetation cover of spring cereals (wheat, barley, and corn) is formed by the growing in the containers with soil. The hyperspectral vegetation indices together with the reflectance in the red edge of spectrum (ТСІ, GrNDVI and REP) are the higher values for corn cover in comparison with the different spring small grain cereals. The additional dose of oil applied in the polluted soils from the Staryi Sambir oil deposit induces the reduction in the values of above-mentioned vegetation indices for the every spring crop of interest. The research of oil-polluted soil and vegetation cover grown in laboratory by hyperspectral remote sensing method using the ASD FieldSpec 3FR spectroradiometer is performed. The vegetation cover of spring cereals (wheat, barley, and corn) is formed by the growing in the containers with the different soils. The hyperspectral vegetation indices together with the reflectance in the red edge of spectrum (ТСІ, GrNDVI and REP) are the higher values for corn cover in comparison with the different spring small grain cereals. The additional dose of oil applied in the polluted soils from the Staryi Sambir oil deposit induces the reduction in the values of above-mentioned vegetation indices for the every spring crop of interest. Accumulated GrNDVI values for the corn and TCI for the corn and spring barley are similar to the laboratory chlorophyll content in these crops (according to the ratio of cultivation substrates). The further remote study of oil polluted soils and their influence on vegetation demands to improve the spectral measurements using satellite image data.
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Shabanov, Evgeniy. "Study of the Processes of Electroosmotic Cleaning of Soils from Oil Pollution on a Three-dimensional Physical Model." E3S Web of Conferences 174 (2020): 01054. http://dx.doi.org/10.1051/e3sconf/202017401054.
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The methods and results of laboratory modeling of processes in clay soils contaminated with oily substances are reviewed: on samples, on one-dimensional and three-dimensional physical models. Laboratory facili- ties, the procedure for conducting experiments and processing their results are described. The possibility of a point and integral forecast of the degree of soil contamination by the results of measurements of its electrical re- sistance is confirmed. The dynamics of changes in porosity, humidity, and particle size distribution of oil-contaminated soils during electric treatment as a result of thermal and osmotic effects by comparing direct measure- ment data and electrophysical monitoring using a system of micro-sensors was revealed. A comparison of the results of the electric treatment of clean soil, contaminated with liquid and viscous oil products is given.
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Dvurechenskaya, Elena B. "HALOGENESIS IN OLIGOTROPHIC SOILS OF THE MIDDLE TAIGA OF WESTERN SIBERIA." Географический вестник = Geographical bulletin, no. 3(54) (2020): 148–58. http://dx.doi.org/10.17072/2079-7877-2020-3-148-158.
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The paper provides analysis of salinization processes in the soils of middle taiga due to oil and petroleum products pollution of humid landscapes of Western Siberia. The specific features of man-made chloride-sodium halogenesis which develops in hydromorphic soils of Western Siberia have been investigated. The obtained materials have been initially processed: salt content, alkaline-acid characteristics, soil absorbent complex composition, and organic carbon content have been determined. There have been identified differences in lateral and radial migration of salts in peat bog soils of ryam and ridge-hollow bogs.
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Buluktaev, Aleksey А. "CHANGES IN SALT COMPOSITION OF OIL CONTAMINATED BLACK SOILS." South of Russia: ecology, development 13, no. 2 (July 1, 2018): 184–95. http://dx.doi.org/10.18470/1992-1098-2018-2-184-195.
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Aim. The Republic of Kalmykia is rich in fossils minerals, the main of which are oil, gas, condensate, etc. The republic includes three main morphostructures: the Caspian lowland, the Ergeninskaya Upland and the Kuma-Manych depression. The Caspian lowland, in turn, is divided into the Sarpinskaya lowland and the Black Lands. Practically all hydrocarbon production fields are concentrated in the territory of the Black Lands. In this regard, the most acute for this area are issues of environmental management and problems associated with the seepage of petroleum products into the environment. In the present work, was investigated the problem of soil contamination within the Nadezhdinsky, North-Kamyshansky, Tengutinsky, Bairskoye and Sostinsky oil deposits. Methods. The soil composition of the deposits is due to the complexity and is characterized by a light granulometric composition and, in most cases, salinity. The soils were analyzed for the content of Са2+, Mg2+and Na+cations, НСО3-, CI-and SO42anions as well as their pH values. Results. Contamination of soils with oil and petroleum products leads to deterioration of its physical and chemical properties, salinity increase, soil alkalinization; soils saturated with oil products, lose the ability to retain moisture, they are characterized by lower values of hygroscopic moisture, water permeability and moisture capacity. Conclusions. The study revealed that the oil pollution of the Black Lands leads to a change in the quality of salinity; the content of sodium and chlorine ions increases in the oil-contaminated soils.
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Shirkhanloo, Hamid, Seyed Alireza Hajiseyed Mirzahosseini, Nasrin Shirkhanloo, Seyyed Ali Moussavi-Najarkola, and Hadi Farahani. "The evaluation and determination of heavy metals pollution in edible vegetables, water and soil in the south of Tehran province by GIS." Archives of Environmental Protection 41, no. 2 (June 1, 2015): 64–74. http://dx.doi.org/10.1515/aep-2015-0020.
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Abstract In this study, heavy metals pollutions in waters, soils and vegetables were investigated from farms, near oil refinery in south of Tehran city, Iran (Shahre Ray). The most important heavy metals in Iranian oil are vanadium, cobalt, nickel, arsenic and mercury (V, Co, Ni, As, Hg). In this region, the concentration of heavy metals in soils, well waters and leafy edible vegetables were evaluated in ten different points of farms. Geographic information systems (GIS) were used to estimate the levels of heavy metals concentration at unmeasured locations. After sample preparation, concentrations of heavy metals in vegetables, soils and waters were determined by atomic absorption spectrometry (AAS). Five different leafy edible vegetables from farms, i.e., Persian leek, dill, parsley, spinach and radish were sampled in spring, summer and autumn 2012. In vegetables and well water samples, the concentrations of V, Ni and Co were above the permissible limit of heavy metals as compared to WHO guidelines and the concentrations of these metals in agricultural soils were found to be lower in accordance to soil references. The industrial waste waters had high concentration of heavy metals in this area. In consequence, the results of this study indicate that industrial waste water can cause pollution in well waters and edible vegetables. So, this region is not suitable for cultivation and growing vegetables.
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Constandache, Cristinel, Lucian Constantin Dinca, and Ciprian Tudor. "The Chemical Properties of Soils from Forest Fields Occupied by Oil Drills in Moinesti, Romania." Revista de Chimie 72, no. 3 (July 29, 2021): 1–9. http://dx.doi.org/10.37358/rc.21.3.8432.
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Forest fields temporary occupied by different industrial activities are restored to the silvicultural circuit after the industrial activity has ended. These fields should be apt for reforestation and should have admissible values regarding their content of dangerous substances. The present article describes and interprets the characteristics of soils from four fields occupied temporary by oil wells in Moine�ti, Bacau County. The content of clay, soluble salts and nutritive elements were analysed, together with the soil�s reaction, the content of hydrocarbons or other soil characteristics. The admissible values for installing, growing and developing forest species were then emphasized. The obtained results have illustrated the fact that the oil extraction activity had negative effects on soils, namely: a strong consolidation (especially on access roads); the truncation and/or derangement/mixture of horizons or soils stratums with the rock; depletion of nutritive substances; salinization, argilisation and pollution with oil residues. In order to render these fields back to the silvicultural circuit, bio remedy technologies must be applied or other measures that can eliminate the pollutant from the soil (decontamination methods), followed by pedoameliorative measures.
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Jabbarov, Zafarjon, Tokhtasin Abdrakhmanov, Alim Pulatov, Peter Kováčik, and Khabibullo Pirmatov. "Change in the Parameters of Soils Contaminated by Oil and Oil Products." Agriculture (Pol'nohospodárstvo) 65, no. 3 (October 1, 2019): 88–98. http://dx.doi.org/10.2478/agri-2019-0009.
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Abstract The oil well drilling and oil processing industries are globally the main contaminants of environmental condition caused by human economic activities. Oil spills have a negative impact on the environment, economy, and society. In this research, the effects of oil with different chemical contents on soil types formed in two soil-climatic conditions have been studied. The purpose of this research is to study the change of soil properties by oil pollution. The experiments have been conducted in irrigated and non-irrigated soils of the desert region of the Kashkadarya and Surkhandarya (Uzbekistan). The results have shown that aggregates (0.25; 0.5; 1; 2; 3; 5; 7; 10 mm) which are the important of soil fertility have changed by oil and oil production, and the changes have proven to be temporary. The effect of the 5% and 15% concentrations of oil, engine oil, petrol, kerosene has been studied. The aggregates 0.25 mm and 0.5 mm have the biggest change among aggregates, in fact, aggregates of 0.25 mm at the level of 5% of oil decreased by 27.02%, at the level of 15% of oil decreased by 99.8%, at the level of 5% of kerosene decreased by 2%, at the level of 15% of oil decreased by 98.1%. Aggregates of 0.5 mm at the level of 5% of oil decreased by 6.44%, at the level of 15% of oil decreased by 67.14%, at the level of 5% of kerosene decreased by 12.75%, at the level of 15% of oil decreased by 92.8%. Engine oil and Petrol at levels 5 and 15 have relatively rare changed. Also, as a result of oil and oil pollution, the total carbon dioxide in the soil has grown briefly, which is an anthropogenic carbon and insignificant for soil fertility and humus. As a result, an anthropogenic carbon increased in gray-brown soil (Durisols Technic, WRB) at 0 – 35 cm layer by 0.22%, irrigated meadow-alluvial soil (Fluvisols, WRB) by 0.31%, irrigated gray-brown soil (Durisols Technic, WRB) by 0.44%, irrigated Takyr-meadow soil (Calsisols, WRB) by 0.25%, Takyr soil (Calsisols, WRB) by 0.32%, sandy Desert soil (Durisols Technic, WRB) by 0.21%.
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Nikulina, Anna, Elizaveta Sachkova, and Lyudmila Bubnova. "Determining Biological Activity of Soils to Maintain the Balance of the Urban Ecosystem." Bulletin of Baikal State University 30, no. 4 (December 30, 2020): 586–92. http://dx.doi.org/10.17150/2500-2759.2020.30(4).586-592.
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The article is devoted to the current problem of spatial changes in the biological activity of soils within the territories that are subject to various degrees of anthropogenic load. Changes in the structure and functions of separate components of soil causes restructuring in operation of the urban ecosystem in general and requires constant monitoring. To study the self-restoring capacity of urban soils, biological activity of soils in different areas of Academgorodok District of Irkutsk was evaluated. Methods of determination of biological activity of soils with the help of indicators of cellulosolytic, protease and urease activity were used. It was shown that, under anthropogenic impact, soils of different areas develop adaptive mechanisms, the activity of which is aimed at enhancing resistance to human negative impact on the environment (oil pollution, reduction of vegetation). The data obtained as a result of the research characterize the ability of the studied soils to self-repair and can be used to develop methods for soil restoration within an urban area.
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Stakhina, L. D., T. I. Burmistrova, and T. P. Alekseeva. "Destruction of Oil Pollution on Soils by Ameliorant Based on Peat." Eurasian Chemico-Technological Journal 5, no. 4 (April 6, 2016): 327. http://dx.doi.org/10.18321/ectj322.
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Biodestruction of crude oils of various chemical types recovered from different regions has been studied. Soil pollution with crude oil and oil products results in serious ecological problems in oils fields, that is especially characteristic for the North regions. Degradation of crude oil components was caused by the<br />communities of micro-organisms obtained from various peat samples of the Tomsk Oblast. The microorganisms were activated by mineral systems. Oil destruction level was defined by gravimetric determination after extraction from soils by methylene chloride; the elemental composition was also determined. The study has revealed that the efficiency of oil degradation ranges from 60% to 80% depending on peat sample<br />and ambient conditions. In general, the content of alkanes (linear + cyclic) and aromatic hydrocarbons with alkyl chains decreased as a result of crude oil destruction. The content of oxygen compounds decreased 2-3 times. As to nitrogen-containing compounds they completely disappeared in the biodegraded samples.
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Okon, Okon G., J. E. Okon, and G. D. O. Eneh. "Alleviatory Effect of Compost Amendments of Crude Oil Impacted Soil on the Neutraceutical Composition of Cucurbita maxima Duch." Journal of Horticulture and Plant Research 1 (March 2018): 35–45. http://dx.doi.org/10.18052/www.scipress.com/jhpr.1.35.
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The effect crude oil pollution and amendment treatments using decomposed green manure (Calopogonium muconoidesDesvaux andAspilia africana(Person) C.D.Adams) on the growth and neutraceutical (minerals, proximate and vitamins A and C) ofCucurbita maximawere studied. Crude oil polluted soils were obtained by mixing thoroughly 10 kg of sandy-loam soil with 10, 20, 30, 40 and 50 ml of crude oil, 0 ml served as control. The amendment treatment with green manure ofC. muconoidesandA. africanawas carried out by adding the different levels of crude oil polluted soils (10 – 50 ml) with 4 kg of the compost manure. The experimental work was carried out in the green house using plastic buckets. Measurement of selected growth parameters such as percentage germination, vine length, leaf area, internode length, leaf number and petiole length was carried out after nine (9) weeks. The results indicated that crude oil pollution significantly (p=0.05) reduced the growth parameters ofC. maxima. Mineral content, proximate composition and vitamin A and C contents ofC. maximaalso showed pronounced reduction with increase in crude oil concentration. The addition of amendment treatment with green manure ofC. muconoidesandA. africanato ameliorate the impeding condition in the crude oil polluted soil significantly (p=0.05) improved the growth parameters and neutraceutical composition ofC. maximawhen compared to the pollution treatment. This study revealed that crude oil pollution negatively affected the growth and neutraceutical composition and generally the productivity ofC. maxima. From this study, it is evident thatC. muconoidesandA. africanaenhanced the growth and quality ofC. maxima.Therefore,C. muconoidesandA. africanashould be used for effective and efficient bioremediation practices.
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Firuz qızı Həkimova, Nərgiz. "Block of reclamation measures of oil-contaminated gray-brown soils of Absheron peninsula." NATURE AND SCIENCE 07, no. 02 (April 23, 2021): 19–21. http://dx.doi.org/10.36719/2707-1146/07/19-21.
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Soil science has been closely related to modeling since its inception. The structure of soil models based on various soil parameters has been widely used in the scientific literature. Academician G.Sh.Mammadov is one of the first authors of scientific-research works in the field of fertility modeling in Azerbaijan. He has done various work in the field of certification of fertility indicators of different soil types of the republic. for the first time in our lands we have developed an ecological model of oil fields in the Absheron Peninsula. The soil used as a model is light and medium clayey gray-brown soil contaminated with ordinary oil. The experience gained in the field of oil pollution and elimination of its consequences shows that it is possible to objectively assess the polluted ecosystem, as well as to take measures to clean up contaminated soils and restore fertility. Key words: oil, contaminated soil, land reclamation
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Lacatusu, Anca-Rovena, Horia Domnariu, Dora Marica, Cristian Paltineanu, Andrei Vrinceanu, and Andreia Vladimirescu. "Modelling the Movement of some Mobile Hydrocarbons Below the Crop Rooting System Using Small-Scale Lysimeters with Undisturbed Soils." Revista de Chimie 71, no. 9 (September 5, 2020): 190–201. http://dx.doi.org/10.37358/rc.20.9.8329.
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The presence of hydrocarbons in groundwater represents a serious risk of disease. This study tests the timing, concentration and amount of BTEX oil components during the oil vertical movement though small-scale lysimeters containing undisturbed soils of different textures and by simulating the fate of oil spills under continuous water application. Three soil types were studied: a sandy-textured, highly permeable Eutric Arenosol, AR-eu, a loamy/sandy-loamy textured Haplic Chernozem, CH-ha, and a loamy-clayey/clayey textured, swell-shrink, Luvic-Chernic Phaeozem, PH-ch-lv. Crude oil was applied as a batch application using an equivalent of 5 g oil /100 g of dry soil for a 0.02 m height in each lysimeter of the three soils studied. After oil-penetration into the soil, tap water was applied on a daily basis above the lysimeters according to infiltration rate. The breakthrough curves of the BTEX compounds show that the highest mobility in the investigated sandy AR-eu soils and loamy CH-ha soils was found for benzene followed by toluene. The other hydrocarbons only showed a limited mobility. There was no leachate from the swell-shrink PH-ch-lv soil. Soil texture and permeability thus play an important role in the movement of BTEX compounds toward the groundwater. After applying an amount of water of 200% from the total soil porosity, or an equivalent of 800-850 mm of precipitation, the leaching process did not end and there still is a leaching potential remained for these hydrocarbons. The highest amount leached per mm of effluent was also for benzene followed by toluene. There were highly significant, direct correlations between the amounts of the hydrocarbons leached and the cumulative effluent volume. The swell-shrink soils are still an effective barrier to hydrocarbons` movement toward groundwater. The BTEX aromatic hydrocarbons leached from the soils, if reach the groundwater, represent sources of pollution with severe risks for human health.
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Buzmakov, S. A., D. N. Andreev, A. V. Nazarov, E. A. Dzyuba, I. E. Shestakov, and Yu V. Khotyanovskaya. "Development of Environmental Criteria for the Permissible Content of Oil and Products of its Transformation in the Soils of the Perm Region." Ecology and Industry of Russia 25, no. 9 (September 8, 2021): 62–67. http://dx.doi.org/10.18412/1816-0395-2021-9-62-67.
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Indicators of the permissible content of oil and products of its transformation for podzols of illuvial-ferruginous, sod-podzolic, peat boggy raised soils of the Perm territory are presented. The sampling of the selected soil types was carried out, with which experiments on phytotesting, biotesting of the quality of water extracts with differentiated oil pollution were carried out. The assessment of chronic phytotoxicity was carried out according to the reaction of three species of terrestrial plants: spring wheat, pea sowing, and hybrid spruce. The water extract of contaminated soils was tested on chlorella and daphnia. As a result, quantitative indicators of the permissible concentration of hydrocarbons in soils after reclamation for agricultural and forestry lands were obtained.
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Opekunova, Marina, Anatoly Opekunov, Stepan Kukushkin, and Sergey Lisenkov. "Chemical composition of soil waters in oil and gas production areas of north of Western Siberia." E3S Web of Conferences 163 (2020): 05011. http://dx.doi.org/10.1051/e3sconf/202016305011.
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This study describes the changes in the chemical composition of soil waters under the influence of natural and anthropogenic factors in the area of development of oil and gas condensate fields in the north of Western Siberia. The concentration of chemical elements (Na, K, Ca, Cu, Zn, Fe, Pb, Cd, Ni, Co, Cr, Ba, Sr, Cd, and Mn) in soils, ground and soil waters was determined. Pollution of soil water and soil is local in nature and it is characteristic of areas located in the immediate vicinity of industrial facilities. A set of indicators is proposed for assessing the transformation of natural complexes under the influence of oil and gas production. The increased pH values, concentrations of petroleum hydrocarbons, nitrates, chlorides, sodium, potassium, calcium, barium, strontium, iron and manganese, as well as zinc, vanadium, cobalt and nickel are observed. In the impact zones in soil waters and soils. Mechanical disturbances of the soil and vegetation cover lead to an increase in defrost, secondary waterlogging and are accompanied by an increase in the migration of chemical elements in the catenary structure of landscapes.
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Fayinminnu, Olajumoke Oke. "Phytoremediation Enhancement of Kenaf Plant (Hibiscus cannabinus L.) Grown on Spent Oil Polluted Soil." Journal of Environment and Ecology 11, no. 1 (March 9, 2020): 26. http://dx.doi.org/10.5296/jee.v11i1.16640.
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Oil pollution especially Spent Lubricating Oil is a wide environmental problem in Nigeria. It constitutes potential toxic effects on soil, flora, fauna and humans and also making the environment unsightly. This study assessed the potential of kenaf plant as a phytoremediator grown in spent oil polluted soil for a period of 84 days (12 weeks). Pot experiment was conducted in the Nursery site of the Moist Forest Research Station, Forestry Research Institute of Nigeria (FRIN), Ibadan, Oyo State, Nigeria. The treatments: amended (with organic manure) and unamended (without organic manure) soils and three pollution levels (0, 3 and 6%) of spent engine oil, each filled in eight-liter plastic pots with 6 kg soil. Growth parameters: plant height, stem diameter and number of leaves were collected and Total Petroleum Hydrocarbon (TPH) in soil was determined. Data were analyzed using descriptive statistics and ANOVA. Results at 12 weeks (84 days) showed amended (control 0%) treatment having highest plant height (112.17 cm), stem diameter (8.92 cm) and number of leaves (178.43), while 6% unamended level of pollution had the lowest plant height (26.78 cm), stem height (1.62 cm) and number of leaves (8.06). Amended soil had the highest total percentage reduction of TPH (75.90, 90.05 and 90.30%), when compared with unamended soil with lowest values (76.88, 85.18 and 82.36%) at 0, 3 and 6 pollution levels, respectively. Reduction of TPH in the phytoremediation process was in this order of pollution levels 6%> 3%> 0%. This study revealed effectiveness of kenaf with organic amendment in remediating Total Petroleum Hydrocarbon in oil polluted soil, hence a good potential phytoremediator.
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Borowik, Agata, Jadwiga Wyszkowska, Mirosław Kucharski, and Jan Kucharski. "The Role of Dactylis Glomerata and Diesel Oil in the Formation of Microbiome and Soil Enzyme Activity." Sensors 20, no. 12 (June 13, 2020): 3362. http://dx.doi.org/10.3390/s20123362.
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The global demand for petroleum contributes to a significant increase in soil pollution with petroleum-based products that pose a severe risk not only to humans but also to plants and the soil microbiome. The increasing pollution of the natural environment urges the search for effective remediation methods. Considering the above, the objective of this study was to determine the usability of Dactylis glomerata for the degradation of hydrocarbons contained in diesel oil (DO), as well as the effects of both the plant tested and DO on the biochemical functionality and changes in the soil microbiome. The experiment was conducted in a greenhouse with non-polluted soil as well as soil polluted with DO and phytoremediated with Dactylis glomerata. Soil pollution with DO increased the numbers of microorganisms and soil enzymes and decreased the value of the ecophysiological diversity index of microorganisms. Besides, it contributed to changes in the bacterial structure at all taxonomic levels. DO was found to increase the abundance of Proteobacteria and to decrease that of Actinobacteria, Acidobacteria, Chloroflexi, Gemmatimonadetes and Firmicutes. In the non-polluted soil, the core microbiome was represented by Kaistobacter and Rhodoplanes, whereas in the DO-polluted soil, it was represented by Parvibaculum and Rhodococcus. In soil sown with Dactylis glomerata, gasoline fraction (C6–C12) degradation was higher by 17%; mineral oil (C12–C35), by 9%; benzene, by 31%; anthracene, by 12%; chrysene, by 38%; benzo(a)anthracene, by 19%; benzo(a)pyrene, by 17%; benzo(b)fluoranthene, by 15%; and benzo(k)fluoranthene, by 18% than in non-sowed soil. To conclude, Dactylis glomerata proved useful in degrading DO hydrocarbons and, therefore, may be recommended for the phytoremediation of soils polluted with petroleum-based products. It has been shown that the microbiological, biochemical and chemical tests are fast and sensitive in the diagnosis of soil contamination with petroleum products, and a combination of all these tests gives a reliable assessment of the state of soils.
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Shirdam, Ravanbakhsh, Ali Daryabeigi Zand, Gholamreza Nabi Bidhendi, and Nasser Mehrdadi. "Phytoremediation of hydrocarbon-contaminated soils with emphasis on the effect of petroleum hydrocarbons on the growth of plant species." Phytoprotection 89, no. 1 (March 2, 2009): 21–29. http://dx.doi.org/10.7202/000379ar.
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To date, many developing countries such as Iran have almost completely abandoned the idea of decontaminating oil-polluted soils due to the high costs of conventional (physical/chemical) soil remediation methods. Phytoremediation is an emerging green technology that can become a promising solution to the problem of decontaminating hydrocarbon-polluted soils. Screening the capacity of native tolerant plant species to grow on aged, petroleum hydrocarbon-contaminated soils is a key factor for successful phytoremediation. This study investigated the effect of hydrocarbon pollution with an initial concentration of 40 000 ppm on growth characteristics of sorghum (Sorghum bicolor) and common flax (Linum usitatissumum). At the end of the experiment, soil samples in which plant species had grown well were analyzed for total petroleum hydrocarbons (TPHs) removal by GC-FID. Common flax was used for the first time in the history of phytoremediation of oil-contaminated soil. Both species showed promising remediation efficiency in highly contaminated soil; however, petroleum hydrocarbon contamination reduced the growth of the surveyed plants significantly. Sorghum and common flax reduced TPHs concentration by 9500 and 18500 mg kg‑1, respectively, compared with the control treatment.
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Mamedova, F., and M. Huseynova. "ASSESSMENT OF SOME INDICES OF OIL-CONTAMINATED SOILS ON THE EXAMPLE OF THE ABSHERON PENINSULA." East European Scientific Journal 1, no. 4(68) (May 14, 2021): 53–54. http://dx.doi.org/10.31618/essa.2782-1994.2021.1.68.14.
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Contaminated of soil ecosystem with oil and oil products is one of the most complex and multiplane problem of environmental protection. No other man made pollutant no matter how dangerous it is, can’t compare with oil by the volume of distribution, number of pollution sources, the amount of load on all components of the natural environment during well accidents. Oil spills cause great harm, due to the large migration capacity capturing territories, many times higher than the initial pollution. As a result tens of thousands of hectares of fertile land are polluted, are withdrawn from agricultural turover. Oil-contaminated soils are the sources of secondary pollution of atmosphere and underground waters, having a huge negative ecological impact on flora and fauna. Suffice it to note that only on Absheron oil district several tens of thousand of hectares of land are subject to reclamation. Loss of oil-contaminated lands and rapid degradation of landscapes causes the need to study processes, that stipulate their transformation.
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Babajide, Popoola, Gbadamosi, Oyedele, and Liasu. "EVALUATION OF PHYTO-EXTRACTION POTENTIALS AND PERFORMANCE OF FALSE SESAME (CERATOTHECA SESAMOIDES) UNDER INDUCED SOIL POLLUTION BY AUTOMOBILE LUBRICANT IN SAVANNA ECOREGION." International Journal of Research -GRANTHAALAYAH 5, no. 11 (November 30, 2017): 355–65. http://dx.doi.org/10.29121/granthaalayah.v5.i11.2017.2368.
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While strategizing towards achieving improved soil fertility for sustainable tropical crop production, timely application of fertilizers on regular basis alone is not the University of Technology, Ogbomoso, Oyo State, Nigeria best approach, particularly on polluted soils. However, seeking for reliable natural, biological and environment friendly means of ensuring effective riddance of toxic elements or heavy metals from tropical agricultural soils is equally a worthwhile technology. An open-field potted experiment was conducted during early raining season of 2016 (March-July), at the Teaching and Research Farms of Oyo State College of Agriculture and Technology, Igboora, to investigate the effect of spent engine oil polluted soil conditions on performance and heavy metal accumulation potentials of Ceratothecasesamoides. Spent engine oil was applied at different concentrations (0.0ml, 50.0ml, 100.0ml, 150.0ml, and 200.0ml to each pot containing 7kg soil. Four pots per treatments were used. The trial was arranged in Completely Randomised Design (CRD), replicated three (3) times. Data were collected on growth parameters (number of leaves, plant height, stem girth, leaf length and leaf breadth). The data were subjected to analysis of variance (ANOVA) and Duncan Multiple Range Test (DMRT) was used to the means. Pre and post-cropping soil analyses were carried out, for determination of nutrient concentrations. Also, after the termination of the experiment, plant samples were collected from each of the pots for oven-drying followed by determination of nutrient concentrations (including the heavy metals). Oil pollution significantly affected growth and heavy metal accumulation of the test-crop. Growth decreases with increasing rate of lubricant application, while the heavy metal concentrations in the test-crop increased with increasing concentrations of the applied spent engine oil. Thus, Ceratothecasesamoides is a wild plant which could be easily exploited for its heavy metals hyper-accumulative or phyto-extractive potentials, so as to reclaim heavy metals polluted soils from toxicity, for sustainable crop production.
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Bespalova, Yu V., T. V. Semenova, and V. A. Beshentsev. "INFLUENCE OF OIL AND GAS FIELDSON SOILS OF THE CRYOLITHIC ZONE OF THE WESTERN SIBERIA NORTH." Oil and Gas Studies, no. 4 (September 1, 2016): 6–10. http://dx.doi.org/10.31660/0445-0108-2016-4-6-10.
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In the territories of Purovsk, Nadym, Tazovsk and Yamal areas the problem of pollution of soils by hydrocarbons and damage of the permafrost zone soil-vegetable cover is particularly acute. The anthropogenic stress created by oil and gas field facilities is significant currently and will grow in the nearest future which at the present level of technologies can aggravate the existing ecological situation.
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Lednev, A. V., and A. V. Lozhkin. "The influence of oil pollution and carriers of biological product on the agrophysical indicators of sod-podzolic soils." Agricultural Science Euro-North-East 21, no. 1 (March 4, 2020): 43–51. http://dx.doi.org/10.30766/2072-9081.2020.21.1.43-51.
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The article presents the results of the influence of various aerating agents, carriers of new generation oil-oxidizing biological product on the agrophysical parameters of sod-podzolic soil highly contaminated with oil (up to 10%), and on the rate of oil decomposition in it. The studies were carried out in a microfield experiment in the conditions of the Udmurt Republic. It was established that during the growing season of 2019 all studied carriers of the biological product had positive effect on these indicators, however, the parameters of the changes were determined by their types. Thus, the application of sawdust, barley straw and flax shive into the soil provided an increase in the structural coefficient by 0.83-0.99 units or 35-43 %. All studied carriers of the biological product statistically significantly reduced the density of the contaminated soil, the greatest effect on this indicator was exerted by flax shive (by 0.42 g/cm3 or 32 %) and sawdust (by 0.34 g/cm3 or by 26 %). The application of vermiculite increased the productive moisture content in the contaminated soil most significantly - by 115 m3 /ha or by 50.7 %. The improvement of agrophysical properties of oil-contaminated soil by carriers of the biological product increased drastically the effectiveness of the preparation for oil decomposition. The greatest effect on this indicator (by 9.9-10.9 mg/kg or 40.2- 44.3 %) was exerted by the biological product in combination with flax shive, lignin and straw. The application of organomineral fertilizers into the contaminated soil also improved the agrophysical properties of oil-contaminated soils significantly and reduced the residual oil content in it by 13.0 mg/kg or 52.8 %.
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Albu, Madalina. "Sustainable Remediation of Soils Contaminated with Petroleum Products." Advanced Engineering Forum 42 (September 7, 2021): 151–58. http://dx.doi.org/10.4028/www.scientific.net/aef.42.151.
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In nature, it acts, simultaneously or successively, synergistically or antagonistically, on small or larger spaces, for a long or very short time, numerous natural or artificial processes that pollute, leading to the alteration of the quality of the environment. The basic activity carried out within the oil scaffolding consists in the extraction of crude oil and gases from the deposits in their exploitation, their collection, separation of phases (crude oil, reservoir water, gas), crude oil treatment, storage and sending to users. Contamination of the field related to drilling-extraction wells with crude oil, heavy petroleum products, salt water, various chemicals, etc. has a random character, but with undesirable implications on soil, surface water and / or groundwater, depending on the nature of the pollutant, its quantity and area of spread Pollution sources in the oil industry, both systematic and accidental, have a greater or lesser spread, depending on the size of the field, the type and composition of the extracted fluids, the extraction technology used, the age of oil exploitation in the area, relief and hydrographic network. Having available the data provided by the pollution diagnosis, it is possible to assess the risk that the investigated pollution represents for the people on the site and for the natural environment. If it turns out that the risk is significant, then the decision is made to switch to depollution works. The choice of an appropriate depollution path is made on the basis of relevant technical and economic criteria, which is a feasibility study. The proposed depollution technology must be the most appropriate for the case at hand and, at the same time, be available on the technology market. The most important part of the paper is dedicated to presenting the results of an experimental study on the depollution of soils contaminated with liquid petroleum products by sparging technologies, in order to ensure a sustainable remedy. The results of the soil analysis used in the experimental determination are presented, as well as the physic - chemical characteristics of the main soil pollutants. In the experimental part, laboratory decontamination of systems consisting of polluted soils was performed at the laboratory level, using air as a depollution agent. The processing of the data obtained from the experimental determinations allowed obtaining qualitative and quantitative information related to the decontamination speed depending on the nature of the soil, the nature and concentration of the pollutant and the temperature of the decontamination air. Estimating the cost places this technology at a low level compared to thermal technologies and slightly higher than microbiological technologies.