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Journal articles on the topic 'Oil pollution of soils'
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1
C.M, Didiugwu, and Chukwura E.I. "Crude oil pollution effect on agricultural soil properties and germination of bean (<i>Vigna unguiculata(/i) L.) seed." Biological and Environmental Sciences Journal for the Tropics 20, no. 3 (2024): 49–58. http://dx.doi.org/10.4314/bestj.v20i3.5.
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Crude oil pollution affects not only soil properties but also seed germination. The aim of thisresearch is to checkmate the effect crude oil pollution has on soil fertility, seed germinationand microbial activity. Two different agricultural soils from Ibeno and Otuocha collected bycomposite sampling were used to conduct the study. The crude oil for carrying out the research was sterilized with a micron Chromafil CA/S % 45 syringe filters. The physicochemical analysis of the soil and its microbiological enumeration was done. This was followed by the artificial pollution of the soil with fresh crude oil. Soil’s physicochemical properties and microbiological enumeration were analyzed followed by the planting of bean seed son the polluted soil. Unpolluted soils was also planted and served as the control. The artificial pollution of the soils’ increased physicochemical properties like cation exchange capacity, selenium, mercury, arsenic, carbon and phosphorus in both soil. Some physicochemical properties like electrical conductivity, salinity, vanadium, zinc, cadmium, iron, manganese, copper, cobalt, nickel and nitrogen decreased in both soils. Water permeability was positive and became negative after pollution. Soil texture was bound and became loose after pollution. Other soil properties like pH increased in Ibeno soil but decreased in Otuocha soil. The number of microorganisms decreases after pollution. Statistically, cultivated beans germinated faster on unpolluted soil and appear healthier than polluted soil because of slow germination and a wrinkled appearance. This study shows that crude oil pollution has a significant effect on soil fertility, seed germination and microbial activity.
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Lifshits, S. Kh, Yu S. Glyaznetsova, O. N. Chalaya, and I. N. Zueva. "Oil pollution transformation in cryogenic soils of technogenic entities in Yakutia." Forestry Bulletin 27, no. 2 (2023): 112–20. http://dx.doi.org/10.18698/2542-1468-2023-2-112-120.
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The study results on the oil pollution biodegradation at technogenic entities (oil depots) of various climatic zones in Yakutia are presented. All the studied territories are characterized by a perennially frozen rocks, however, various mechanisms of oil pollution biodegradation of the soils in these territories have been established. It is shown that the degradation mechanism of oil pollution depends on climatic conditions, and a temperature is the main factor affecting the activity of soil microflora and its diversity. It has been established the oxidative degradation of oil pollution in the temperate zone with a sharply continental climate runs mainly due to biodegradation processes, and in the Arctic zone it is carried out under the influence of physical and chemical environmental factors. In Arctic soils biodegradation of oil pollution occurs by decay. As a result, the soils begin to colonize putrefactive and pathogenic microorganisms. It is recommended to carry out research on the development of effective methods for cleaning Arctic soils from oil pollution.
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Shram, V. G., Yu N. Bezborodov, M. A. Kovaleva, et al. "Regulatory and Legal Aspects of Environmental Supervision of Oil Facilities in the Krasnoyarsk Territory." Ecology and Industry of Russia 27, no. 8 (2023): 65–71. http://dx.doi.org/10.18412/1816-0395-2023-8-65-71.
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Review of documents on the regulation and assessment of pollution of land and water resources by oil and oil products. The immediacy of standards development for the MAC of oil in soils, including the level of pollution taken into account after reclamation work, as well as during operation, conservation, and liquidation of industrial facilities. It was concluded that, in order to fulfill the requirements for environmental protection and restoration of soils and soils contaminated with oil and oil products, it is necessary to improve the regulatory framework and develop MAC related to oil content standards.
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Buluktaev, Aleksey A. "Biological properties of soils of the "Nadedzhdinsky" and "Severo-Kamyshansky" oil fields located in the territory of the "Mekletsky" reserve." Izvestiya of Saratov University. Chemistry. Biology. Ecology 23, no. 4 (2023): 447–60. http://dx.doi.org/10.18500/1816-9775-2023-23-4-447-460.
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The most acute environmental problem in many regions of Russia and other countries is environmental pollution with oil and oil products. Soil pollution with oil products can occur in various emergencies in areas of oil production and processing, when oil pipelines break, which causes leakage and spills on the soil surface, as well as in places where oil products are distributed. The purpose of this study is to study the biological properties of soils in Kalmykia under conditions of oil and oil products pollution. The soils of the Nadezhdinskoye and Severo-Kamyshanskoye oilfields located on the territory of the Mekletinsky nature reserve were chosen as the objects of study. Laboratory and analytical studies, as well as sampling, were carried out using methods generally accepted in biology and soil science. The content of oil products in the soils of the oil field is in a wide range: from 0.4 to 12.5%. A negative correlation was established between the content of oil products in the soil and the activity of catalase and phosphatase. Oil products have a negative impact on the growth and development of radishes. The exploitation of oil fields in specially protected natural areas leads to the flow of oil and oil products into the environment. In the soils of Kalmykia on the territory of oil fields, under the influence of pollution with oil and oil products, the activity of soil enzymes is inhibited, in addition, the soils exhibit a high degree of phytotoxicity with respect to test plants.
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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 (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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AKHMETZHAN, S., T. UTEEVA, and L. CHURIKOVA. "ACID HELIOMICROBIOLOGICAL METHOD FOR OIL CONTAMINATED SOILS IN WESTERN KAZAKHSTAN FIELDS." Neft i Gaz, no. 1 (February 28, 2023): 117–25. http://dx.doi.org/10.37878/2708-0080/2023-1.10.
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The article presents promising methods of cleaning oil-contaminated soils. Oil pollution causes serious damage to the environment. Under normal conditions, work on the purification of oil waste and oil-contaminated soils is not carried out due to the lack of equipment and efficient processing technology. It is emphasized the need to develop promising methods for cleaning oil-contaminated soils and the possibility of using oil-contaminated soils as an organic retaining material for fixing the soil layer in road construction, as well as building materials. According to laboratory studies, with a moisture content of 30%, oil sludge is transported in the form of brittle plates. At the same time, oil sludge does not gather dust, has thixotropic properties, passes more than 1-3% of moisture into the lower soil layer. Thus, dry oil sludge is convenient and safe for transportation and storage in warehouses. The humidity of dry oil sludge averages 15-20%. The composition of the dry sludge is mostly stable: petroleum products 15-25%; mechanical impurities 70-75%; water 5-8%. In recent years, a number of studies have been conducted to eliminate oil pollution to solve the problem of cleaning oil-contaminated soils. Various classifications of landfills and methods of waste disposal during the construction of landfills of oil production waste are described: sludge collectors. However, currently none of the methods of removing oil-contaminated soils is widely used, each of these methods has its advantages and disadvantages. The ways of the microbiological method aimed at preventing or reducing pollution by oil and petroleum products trapped in the soil layer are shown. The object of research in the article is the Zhanazholskoye field, one of the West Kazakhstan fields, and the situation of applying the new technology to the heliomicrobiological method of acidification of oil-contaminated soils is presented.
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Koshelkov, A. M., and L. P. Mayorova. "Oil Pollution Assessment of Soils in Khabarovsk." Ecology and Industry of Russia 25, no. 12 (2021): 65–71. http://dx.doi.org/10.18412/1816-0395-2021-12-65-71.
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The TPH-in-soil of three functional zones (industrial, residential, agro-residential) of Khabarovsk have been studied. Areas of acceptable, low, moderately hazardous, moderate, high and very high pollution levels have been identified. It has been found that the TPH-in-soil of different urban functional areas differs significantly. For statistical processing of experimental data, the Boxplots method ("box-and-whiskers diagram") has been used. It has been proposed to switch to the median value of the aggregate sample of the TPH-in-soil in residential and agro-residential areas as the baseline data.
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Jabbarov, Zafarjon, Urol Nomozov, Yunus Kenjaev, et al. "Effects of pollution of saline soils with oil and oil products on soil physical properties." E3S Web of Conferences 497 (2024): 03006. http://dx.doi.org/10.1051/e3sconf/202449703006.
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In the article, pollution of saline soils with oil and oil products, physical and water-physical properties depending on the level of salinity are studied. As a result of the research, it is scientifically based that the increase in the level of contamination of the soil is subject to the decrease in water permeability, and the decrease in the level of pollution is subject to the law of the increase in water permeability. In the article, weakly, moderately, strongly and very strongly contaminated soils with oil were studied. According to the results, it was determined that the water permeability of the soil was observed in 25, 45, 45, 37, 5, 3, 2 minutes, and it carried 75, 26, 44, 45, 540, 1050, 1200 ml of water, respectively, for 90 minutes. The amount of water transfer compared to the control soil for 90 minutes was less in 1%, 2%, 5% contaminated soils, and very high in 15%, 25% and 37.5% contaminated soils. The increase in the level of pollution is explained by the deterioration of water permeability and moisture retention. Also, due to the fact that oil is a viscous organic pollutant, the changes of 0.25, 0.5, 1, 3, 5, 7, 10 mm microaggregates, which are important for soil fertility, as a result of pollution, and changes in the amount of these microaggregates were also determined. It was found that the soils around the South Mirshodi oil field were previously contaminated and the amount of microaggregates smaller than 0.25 mm, 0.25 mm, 1 mm, 2 mm and 3 mm in the irrigated soils increased as the distance from the source of contamination increased. This is explained by the decrease in the concentration of oil in the soil. The amount of 5 mm, 7 mm and 10 mm aggregates has decreased. A similar situation was observed around the Kumkurgan oil base. The effect of petroleum hydrocarbons is more noticeable in microaggregates with a diameter of 10 mm.
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Mingaleva, Tatiana A., Sergey V. Shakuro, and Alexey S. Egorov. "FEATURES OF THE STRUCTURE AND NATURE OF POLLUTION OF THE UPPER PART OF THE SECTION OF OIL STORAGE FACILITIES IN THE VOLGA RIVER VALLEY." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 334, no. 7 (2023): 137–47. http://dx.doi.org/10.18799/24131830/2023/7/4035.
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Link for citation: Mingaleva T.A., Shakuro S.V., Egorov A.S. Features of the structure and nature of pollution of the upper part of the section of oil storage facilities in the Volga River valley. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 7, рр. 137-147. In Rus. The relevance of the study is caused by the fact that soil pollution with oil products has a complex dynamic character in the spatio-temporal region. Therefore, the physical properties of soils in solving geophysical problems of contouring and determining the thickness of pollution can change under the influence of various factors, expanding the range of search signs of pollution. Determination of physical parameters for areas of oil pollution, similar in nature of development and geological conditions, can help in the future for the effective parameterization of hydrocarbons in soils. The main aim is to build a generalized model with physical properties (electrical resistivity, сompressional and shear-wave velocities) for the soils of long-term oil depot territories. Methods: analysis of literary sources on the research topic; processing and interpretation of field geophysical material for tank farms located on the banks of the Volga River; building a generalized model with a description of the physical characteristics of soils based on the results of geophysics for the soils of tank farms. Results. The authors have studied the nature of soil pollution of two oil depots in the Volga River region using materials published in domestic and foreign literature, which made it possible to substantiate the parameters of a generalized physical-geological model of soil pollution of oil depots. In the general case, the distribution of pollution areas is subject to the features of the geological structure and hydrogeological regime of the areas under consideration and generally includes five zones (the upper area, the area of pollution above the free-flow horizon, the area of seepage in the hydrogeological window, the area of groundwater pollution, the zone of secondary accumulation). This model can be used to predict the nature of pollution in tank farms, loading and unloading points, car repair shops, washing sites and gas stations located near river and lake basins. The model of distribution of oil products in soils will be complex, which will also be expressed in geophysical sections.
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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 (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.
11
Egai, Ayibawari O., Reward K. Douglas, and Ayebatin Fou. "Assessing the extent of heavy metal contamination in crude oil-impacted soils in the Niger Delta, Nigeria using geochemical indicators." Global Journal of Earth and Environmental Science 7, no. 1 (2022): 1–9. http://dx.doi.org/10.31248/gjees2020.067.
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The study presents heavy metal (HM) [copper-Cu, chromium-Cr, nickel-Ni, vanadium-V, lead-Pb, zinc-Zn and iron-Fe] contamination in genuine crude oil-impacted soils and pristine (control) soils. HM concentrations were measured using inductively coupled plasma (ICP). Using soil Contamination factor, Enrichment factor, Pollution load index and Geo-accumulation index, the extent of heavy metal contamination in soils were determined and compared. Results of contaminated factor (CF) of Cu, Cr, Ni, and V were very high in the impacted soils whereas CF of Pb indicated considerable level of contamination. Pollution load index was greater than 1 which implies severe pollution in all the impacted soils while; the control soils indicated a pollution load index of less than 1 showing no pollution. Enrichment factor values of the impacted soils were between 0 and 1, which reveals background enrichment showing the presence of the metals above the threshold values. This may be attributed to anthropogenic sources especially oil spill contamination. The results of geo-accumulation index of Zn, Pb, and V showed considerable accumulation whereas, Fe, Cu, Cr and Ni indicated unpolluted to moderately pollution. Results of V, Ni, Pb, and Cr may be attributed to anthropogenic origin, which are in agreement with the calculated values of the enrichment factor. Results suggest the need for environmental risk assessment and/or remediation of the numerous oil spill sites for soil health and wellbeing of humans.
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Bukharina, I. L., A. A. Isupova, V. I. Lyamzin, and M. A. Lebedeva. "Use prospects for microorganisms consortiums and higher plants in oil-contaminated lands restoration." Forestry Bulletin 26, no. 6 (2022): 14–23. http://dx.doi.org/10.18698/2542-1468-2022-6-14-23.
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The article presents the research results on the use of microscopic endotrophic fungi cultures in oil-contaminated soils bioremediation. The resistance limits of microscopic fungi Fusarium equiseti (Corda) Sacc and Cylindrocarpon magnusianum Wollenw isolates (cultures), isolated from urban soils with a high level of pollution, were studied to various oil concentrations. Wide limits of microscopic fungi tolerance to oil content were revealed. Also, the cleaning efficiency and restoring the biological activity of oil-contaminated soils was studied using a ameliorants consortium: the biological product «Mikrozim Petro Treat», containing a number of oil degrading bacteria, the plant ameliorant Kentucky bluegrass (Poa pratensis L.) and microscopic fungi. A laboratory experiment was carried out to simulate 5 and 10 % soil pollution (sandy loam and loamy soddy podzolic soils) with oil. The greatest efficiency was established when using the full ameliorants composition with microscopic fungi cultures Cylindrocarpon magnusianum Wollenw (the biological product + plant ameliorant + microscopic fungi): at the end of the experiment, in variants with 5 % oil content on both soil textures and 10 % oil pollution (loamy soil), the oil content was significantly lower than in the control (using only a biological product). On loamy soil at 5 and 10 % oil content, the invertase activity indicator of soils at the end of the experiment exceeded the control in the variant with the use of a combination of ameliorants plant ameliorant + fungi, and maximum — in the variant of the complete ameliorant consortium. These results were obtained using both cultures of microscopic fungi. On sandy loamy soils, a significant increase in the biological activity of soils compared to the control was established only at 5 % oil content and only in the variant using a complete consortium of ameliorants with the fungi Cylindrocarpon magnusianum Wollenw. The results obtained allow us to state the effeciency of the joint application of the biological product, higher plants and microscopic fungi in bioremediation of oil-contaminated soils.
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Gaivoronskiy, Vladimir G., Anna A. Kuzina, Sergey I. Kolesnikov, Tatiana V. Minnikova, Elena N. Nevedomaya, and Kamil Sh Kazeev. "A method for determining the environmentally safe residual content of oil and petroleum products in soils." Hygiene and sanitation 102, no. 9 (2023): 987–92. http://dx.doi.org/10.47470/0016-9900-2023-102-9-987-992.
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Introduction. The Black Sea Coast of the Caucasus is one of the most important recreational and tourist regions for Russia. In recent years, it has been subjected to a sharply increased anthropogenic load, due to an increase in the number of tourists, accompanied by an increase in traffic flows and, as a result, an increase in environmental pollution, including oil hydrocarbons. The risks of leakage of oil products during transportation and pumping are increasing. To predict and prevent dangerous consequences of pollution, it is necessary to determine the environmentally safe residual content of oil and oil products in the soil, based on the regional ecological and geochemical characteristics of soils.
Materials and methods. Laboratory modelling of contamination with oil and petroleum products (fuel oil, gasoline, diesel fuel) of sod-carbonate typical soil was carried out. To simulate pollution, oil and petroleum products were added to soil samples including fuel oil, gasoline, diesel fuel in a weight concentration of 1% (low pollution), 5% (medium pollution) and 10% (high pollution) of the soil mass. The exposure period lasted 30 days. After the specified period, changes in biological parameters (enzyme activity, radish root length, number of soil bacteria) were determined. Based on the listed parameters, the integral indicator of the biological state IIBS of the soil was calculated .
Results. Oil and oil products pollution negatively affected the biological properties of the studied soil. A significant decrease in enzymatic activity, the number of bacteria, and the length of plant roots was recorded. The range of toxicity of the studied substances on biological indicators of soils is as follows: oil > fuel oil > gasoline > diesel fuel. The study made it possible to determine the maximum level of residual content of oil and petroleum products (fuel oil, gasoline, diesel fuel) in the refinery. For oil, it is 0.27%, for gasoline – 0.40%, for fuel oil – 0.30%, for diesel fuel – 0.45%.
Limitations. The proposed limit levels of residual oil and petroleum products (fuel oil, gasoline, diesel fuel) in soils are applicable primarily on the territory of the Black Sea coast of the Caucasus.
Conclusion. The proposed limit levels of the residual content of oil and petroleum products (fuel oil, gasoline, diesel fuel) in the soils of the refinery area can be used by environmental, agricultural and scientific organizations
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Osadebe, Anwuli, Chioma Chikere, and Gideon Okpokwasili. "Impact of Chronic Crude Oil Pollution on Nitrification in Edaphic Systems." ECOTOXICOLOGY AND ENVIRONMENTAL CONTAMINATION 17, no. 2 (2023): 50–63. http://dx.doi.org/10.5132/eec.2022.02.07.
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Nitrification plays a key role in regulating soil fertility, concentration of soil inorganic nitrogen and production of the highly potent greenhouse gas, nitrous oxide, from soil. This study investigated the effect of long-term crude oil pollution on the activity, abundance and diversity of autotrophic nitrifying bacteria in impacted soils from Bomu and Abonema in the Nigerian Niger Delta compared to unpolluted systems. Nitrifier activity was investigated by determining the soil oxidation potentials while the most probable number microtechnique using Winogradsky media was used to ascertain nitrifying bacteria abundance and soil DNA analysis alongside plate cultures defined nitrifying bacterial diversity. Nitrifier activity was found to be higher in the polluted soils than in the unpolluted soils while quantification of the nitrifying bacteria revealed that polluted samples had higher nitrifier counts. Statistically significant differences existed amongst nitrifier counts and activity (p≤0.05) between polluted and unpolluted systems with positive correlation between nitrifying bacteria counts and oxidation potential. The results highlighted the dominance of cultivable Nitrosomonas and Nitrobacter in both polluted and unpolluted soils while DNA analysis revealed that Nitrospira was the dominant nitrifier genus in unpolluted soils and Nitrobacter in polluted soils. Nitrospira was not detected the polluted ecosystems. No ammonia oxidisers were detected via metagenomics analysis. The ammonia oxidisers proved to be more sensitive to chronic crude oil pollution than the nitrite-oxidising bacteria. Long term crude oil exposure produced a 3 – 5 times increase in the activity of nitrifying bacteria in polluted soils with approximately twice the abundance when compared to the unpolluted systems.
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Fedorov, Yuri A., Andrey N. Kuznetsov, Leonid Yu Dmitrik, Elena V. Kuznetsova, and Olga Yu Ballinger. "Features of oil products content distribution in soils, road dust and snow according to the mega profile in the Rostov region." Anthropogenic Transformation of Nature 8, no. 2 (2022): 61–66. http://dx.doi.org/10.17072/2410-8553-2022-2-61-66.
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In the last few decades, the enormous scale of crude oil extraction, transportation and processing has caused widespread pollution of soils with crude oil and oil products. Thus, its permanent presence in the environment, and, as a consequence, in soils, is due to natural and anthropogenic origin. The authors have conducted expeditionary research in order to take soil, dust and snow samples along the route "Margaritovo (coast of the Sea of Azov) – Shakhty (Eastern Donbass)". The profile extension is more than 150 km. The oil products mass concentration has been determined in the samples collected. The data set analysis has showed that the oil products content in the soils of the Rostov region should be assessed as varying from acceptable to average. It is concluded that road dust and snow are one of the dominant sources of soil pollution in the Rostov region with oil products.
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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 (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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Rumin, M. B., D. V. Cherkasov, O. G. Lopatovskaya, G. O. Zhdanova, A. B. Kupchinsky, and D. I. Stom. "Effect of oil and surfactants on changes in some physical properties of soils." IOP Conference Series: Earth and Environmental Science 1229, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1755-1315/1229/1/012039.
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Abstract The paper shows that oil pollution of gray forest and soddy-podzolic soils led to a decrease in capillary water capacity, plasticity and solid phase of soils. As a result of the introduction of the nonionic surfactant tween-80 into the oil-contaminated soil, these indicators were partially restored, but their values remained lower than in soil samples subjected to oil treatment. The obtained materials allow us to speak about the fundamental possibility of using surfactants for the remediation of oil-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 (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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Ropek, Dariusz Roman, and Janina Gospodarek. "Entomopathogenic Nematode Steinernema feltiae as an Indicator of Soil Pollution with Oil Derivatives in Bioremediation Process." Agriculture 12, no. 12 (2022): 2033. http://dx.doi.org/10.3390/agriculture12122033.
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Petroleum-derived substances (PDSs) pollutants negatively affect agricultural soil biocenosis, disturbing the biological properties of soils. This paper aimed to test the effect of oil derivatives during soil bioremediation processes on Steinernema feltiae nematode and determine their potential use as an indicator of the degree of soil pollution. Two test series were applied (with bioremediation and without bioremediation) in which the soil was contaminated with diesel fuel, petrol and engine oil. A preparation was designed for the bioremediation of soils polluted with oil derivatives and used in the experiments. Soil pollution with oil derivatives has a negative effect on S. feltiae nematode ability to penetrate Tenebrio mollitor larvae. The most negative and long-lasting effect of soil pollution with oil derivatives was registered when engine oil and diesel fuel were used. The application of biopreparation accelerated the bioremediation process and diminished a negative effect of soil pollution with engine oil on virulence of S. feltiae nematode. The mortality of test insects caused by the nematode S. feltiae was a sufficient indicator of the progress of bioremediation of petroleum pollutants, such as diesel oil and engine oil.
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Nurpeissova, Marzhan, Bakytzhan Burkhanov, Natalia Fedotenko, and Essenzhol Nazarov. "Assessment of oil waste as a source of environmental pollution and as a source of secondary raw materials." Sustainable Development of Mountain Territories 15, no. 4 (2023): 833–41. http://dx.doi.org/10.21177/1998-4502-2023-15-4-833-841.
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Introduction. Oil waste has a high degree of toxicity and poses a great danger to humans and to the natural environment as a whole. One of the most acute problems is the negative impact of oily waste. The negative impact of petroleum products on the soil can lead to irreversible changes in the chemical composition, physical biochemical and microbiological properties of the soil, which determine, among other things, its fertility. The main potential sources of soil pollution with oil and petroleum products include ground vehicles, oil storage facilities, oil refining enterprises, as well as transport transporting petroleum products. The study of the physico-chemical properties of ash and slag waste to reduce the anthropogenic load on the environment. In Kazakhstan, as a result of the production activities of a number of large oil-producing enterprises, huge amounts of oil-and-oil soils have accumulated, significantly polluting the environment. The areas of polluted lands continue to increase as a result of emergency oil spills. Therefore, on the territory of the Kumkol oil field, it is very relevant to conduct environmental monitoring of soil pollution and carry out reclamation measures to restore land fertility The purpose of the research. Environmental monitoring in the conditions of development of the Kumkol deposit and the development of an effective technology for the reclamation of contaminated lands through the use of highly effective biological products to reduce the anthropogenic load on the natural environment. Research materials. For the research, samples of smeared soils of various sites of the Kumkol deposit of the Kyzylorda region of Kazakhstan were used. Research methods. The choice of soil monitoring methods was carried out taking into account the available sources of pollution and types of soil pollution: chemical, biochemical, biochemical, microbiological, etc. The analysis of existing methods of ecological monitoring of soils shows that due to the high cost and technological complexity, the use of a number of them is limited. Therefore, an effective approach to determine the degree of contamination of soils with petroleum products is the use of bioindication and biotesting methods Research results and discussion. As a result of the environmental monitoring, the technology of recultivation of polluted lands was developed using a biological product obtained by composting rice husks with the help of aerobic and anaerobic soil microorganisms. The scientific novelty of the proposed method of recultivation of contaminated soils is confirmed by the patent of the Republic of Kazakhstan, which confirms the scientific and practical significance of the work. The results of the research can be useful in the reclamation of oil-contaminated lands in other regions and the restoration of their vegetation cover. Conclusion. The monitoring of soil pollution by oil and petroleum products shows that the main potential sources include ground transportation facilities, oil storage facilities, oil refineries and transport, which first brings petroleum products. The developed technology of biorecultivation, firstly, reduces the anthropogenic load on the soil surface due to the biodegradation of oil spills, and, secondly, at the same time, the disposal of spilled oil in the form of vermicompost is carried out. In the work, for the first time on the basis of the application of a new technology for the reclamation of contaminated land resources using a biological product obtained from waste of plant and food origin, a new approach to the problem of utilization of oil-contaminated soils and restoration of their fertility, with the production of vermicompost, is proposed. Suggestions for practical application. A new approach to the problem of utilization of oil-contaminated soils and restoration of their fertility, with the production of vermicompost, is proposed, which can be useful in solving environmental problems in other oil-producing regions of Kazakhstan.
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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 (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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Шулаев, N. Shulaev, Пряничникова, et al. "Phytoremediation of Oilfield Soils." Safety in Technosphere 6, no. 1 (2017): 25–30. http://dx.doi.org/10.12737/article_5901960ebc71e2.59199388.
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A way for restoration of soils polluted at oil production using plants has been described. Experiments on a research related to influence of oil and produced waters’ various volumes on mace reed (Týpha latifólia) and common reed grass (Phragmites communis) seeds viability have been carried out. These perennial plants’ reaction nature on soils pollution by salts’ model solution corresponding on structure to produced waters of fields has been studied. Statistical data processing has been carried out, and germinating ability-pollution content relationships have been described. Indicators for dynamics of germinating ability suppression have been presented. The obtained data demonstrates a possibility for use of hygrophilous vegetation’s described species at re-cultivation related to sites of oilfield soils with increased moistening as independently, and with preliminary preparation through other treatment technologies.
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Gorovykh, Olga G., Sviatlana V. Budko, and Konstantin F. Saevich. "EXPERIENCE OF USING THE BIODESTRUCTOR DEVOROIL FOR CLEANING SOILS OF RAILWAY SECTIONS FROM OIL CONTAMINATIONS." Journal of the Belarusian State University. Ecology., no. 2 (June 25, 2022): 81–87. http://dx.doi.org/10.46646/2521-683x/2022-2-81-87.
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The actual environmental problem of pollution of the territories of the Belarusian Railway organizations by oil products is considered. The grounds for choosing the drug «Devoroil» for cleaning contaminated areas from weathered and bituminized oil products are considered. The results of studies of the content of oil products in the territory of the structural subdivisions of the Brest branch of the Belarusian Railway are given, pollution reached a value of 84900 mg oil products/soil. It is noted that the most polluted are the soils between the sleepers of individual tracks. Bioremediation studies were carried out both on a special site (ex situ) and directly at the site of contamination (in situ). Soils contaminated with oil products were disinfected using the Devoroil biodestructor in the spring-autumn period for six years. It has been established that in one spring-autumn period, the decrease in the content of oil products in oil-contaminated soils can reach 90 %. However, the achievement of MPC standards, even with an increase in the content of the Devoroil preparation and a double treatment during one season, was not achieved.
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Aliyeva, I. B. "ASSESSMENT OF THE IMPACT OF OIL AND OIL PRODUCTS ON THE ENVIRONMENT AND LIVING ORGANISMS." Advances in Biology & Earth Sciences 9, no. 1 (2024): 161–67. http://dx.doi.org/10.62476/abes9161.
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Phytotoxic properties of Absheron soils were studied when they were contaminated with oil and oil products. For this purpose, samples were taken from gray-brown semi-desert soil from Binagadi settlement of Absheron region and light chestnut soil from Saray settlement. Studies conducted with these soil types have shown that arid areas are not resistant to pollution by oil and oil products in terms of phytotoxicity. It was found that the soils of the Absheron peninsula contaminated with oil and oil products have a negative effect on the growth and development of test plants.
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Sakaeva, Elvira, Daria Yudina, and Maria Shabalina. "The effect of sulfurous oil on the biological activity of soils." E3S Web of Conferences 451 (2023): 03004. http://dx.doi.org/10.1051/e3sconf/202345103004.
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The influence of oil hydrocarbons on soils with short-term and long-term pollution is considered. The regularity of the change in the number of microbiological community depending on the duration of oil hydrocarbon pollution has been established. The dependence of catalase activity on the time of contamination in the soil is shown.
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Akpokodje, O. I., H. O. Juwah, and H. Uguru. "Impacts of petroleum spills on geotechnical properties of soils: A review." Journal of Engineering Innovations and Applications 1, no. 1 (2022): 1–6. http://dx.doi.org/10.31248/jeia2022.021.
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Environmental pollution caused by crude oil spills had increased recently in Nigeria, due to increase in crude oil production and the activities of crude oil thieves. This review work was embarked upon to evaluate the impacts of crude oil petroleum products spills on the geotechnical properties of different soils found in Nigeria. The review tried to provide a summary on the influence of crude oil on the Atterberg limits, compaction, permeability, angle of internal friction, cohesion, and consolidation properties of soil samples. Findings from this review revealed that the geotechnical characteristics of soils can be remarkably altered by crude oil and petroleum products impaction. Most of the literatures reviewed indicated a reduction in the Atterberg limits, the compression index (Cc) and the permeability of the soils, as the volume of crude oil in the soils increased. The literature review depicted that the rate, at which the soils’ geotechnical properties were altered, was a factor of the oil volume contained inside the soils and the impacted soil biochemical properties.
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Nosova, M. V., Valentina P. Seredina, and Alexander S. Rybin. "Ecological state of alluvial soils of floodplain landscapes under conditions of local pollution by hydrocarbons (Western Siberia)." IOP Conference Series: Earth and Environmental Science 931, no. 1 (2021): 012016. http://dx.doi.org/10.1088/1755-1315/931/1/012016.
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Abstract The paper presents an analysis of field and experimental studies of the main physicochemical parameters of oil-contaminated soils of floodplain ecosystems of the middle taiga subzone of Western Siberia. The features and main regularities of their change in different pollution zones (epicenter - impact zone) are revealed. The state of the physicochemical parameters of technogenically contaminated soils is compared with background analogs. The most important groups of chemical compounds and elements that pose an environmental hazard are considered - oil and oil products, technogenic readily soluble salts (including their toxic compounds), the ways of their migration, transformation and accumulation in contaminated soils. General recommendations are given on the use of the discovered regularities in the technical maps of reclamation measures and the system for monitoring contaminated soils.
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Udo, Aniekan Daniel. "Evaluating the Compaction Behavior of Oil-contaminated Soils for Civil Engineering Applications." Journal of Engineering Research and Reports 26, no. 7 (2024): 102–20. http://dx.doi.org/10.9734/jerr/2024/v26i71198.
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This study investigates the impact of oil contamination on the compaction characteristics of soil, specifically lateritic soil samples from Bori Local Government Area in Rivers State, Nigeria. The research focuses on understanding how varying degrees of oil pollution affect soil's compaction behavior, crucial for civil engineering applications. Compaction tests, including the standard Proctor test, were conducted on both uncontaminated and oil-contaminated soil samples. The results indicate that up to 2% oil addition improves compaction, reducing the optimum moisture content and increasing the maximum dry density. Beyond 4% oil content, no significant enhancement in compaction was observed, and higher oil percentages led to saturation and expulsion of oil, based on visual inspection it appears to negatively affect the soil strength. These findings are essential for engineering projects in oil spill regions, providing insights into effective soil compaction strategies and the potential use of oil-contaminated soils in construction.
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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 (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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Bulai, Indo Sabo, Haruna Haruna, Yuguda Abubakar Umar, and Ahmed Sabo. "Optimization of Fruit Garbage Enzymes Requirements for Biocatalytic Remediation of Used Motor Oil-Contaminated Soil." Journal of Korean Society of Environmental Engineers 43, no. 4 (2021): 241–56. http://dx.doi.org/10.4491/ksee.2021.43.4.241.
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Objectives : In this research work, we investigated the biocatalytic potency of orange and watermelon garbage enzymes in the remediation of used motor oil-contaminated soils. The optimization of the biocatalytic remediation process was evaluated through D-optimal of response surface methodology (RSM) design of design expert.Methods : The optimization of the biocatalytic process was evaluated with D-optimal model of response surface methodology (RSM) design, where input variables in the system were garbage enzymes solutions of orange and watermelon peels (biocatalysts) and two different pollution levels. The two levels of pollution factor considered were 5 and 10 % (w/w) oil pollution levels and used as independent variables; while the response of the system was in oil and grease (O&G) removal as dependent variables that were monitored under 6-week remediation process.Results and Discussion : The result indicated that the model was highly significant and good predictors of the response fate of oil and grease (O&G) removal by the orange and watermelon garbage enzymes, as indicated by their coefficients of determination: R2 = 0.90627 and R2 = 0.88365 at p < 0.05, respectively. Therefore, it was observed from the numerical optimization carried out that 54.2 and 53.8 % O&G removal was achieved with orange garbage enzymes at 5 and 10 % pollution level respectively after six weeks. On the other hand, 54.7 and 55.2 % O&G removal was accomplished with the same pollution level respectively under the influence of watermelon garbage enzymes after six weeks of the remediation process.Conclusion : In response to what was achieved in this research work, the enzymes produced from the orange and watermelon garbage removed oil in terms of O&G from used motor oil-contaminated soils biocatalytically and hence could be applied in the remediation of oil contaminated soils.
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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 (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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Maksimova, M. A. "Comparative analysis of soil pollution oil products of industrial and landscape-recreational zones of the city of Usolye-Sibirskoe using the fluorimetry method." XXI Century. Technosphere Safety 7, no. 2 (2022): 131–41. http://dx.doi.org/10.21285/2500-1582-2022-2-131-141.
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The purpose of the work is to compare soil pollution with oil products on the territory of industrial and landscape-recreational zones of the city of Usolye-Sibirskoye using the fluorometry method. The content of oil products in the samples of the four upper layers of soils taken from the production area of the chemically contaminated city of Usolye-Sibirskoye and from its landscape and recreational zone was determined. Although the maximum permissible concentration of oil products in the soils of these zones has not been established, it is known that the mass fraction of oil products in uncontaminated soils should not exceed 0.1%. The obtained results of fluorimetric analysis of soils from two practically diametrically opposite areas of the city in terms of pollution made us think and conduct a deeper analysis, taking into account the wind rose of the city and adjacent territories and the sufficiency of the fluorimetry method performed using the Fluorat-0.2 luminescent photometric analyzer. Using the results of the analysis of soil samples from the territories of "Usolekhim-prom" and "Ski base" in Usolye-Sibirskoye, it was revealed that the mass fractions of oil products exceed the indicators for all four upper soil layers in the case of focusing on the principles of rationing, which today are not legally established. The results of the study showed that the highest content of oil products in both cases is in the layer of forest litter. Based on the fact that the activities of Usolekhimprom have been completely stopped since 2017, and pollution with oil products exceeding the approximate standard values was found only in the uppermost layer of the soil, it was suggested that the main cause of soil pollution with oil products in the territory of the city of Usolye - Sibirskoye is, basically, the current largest enterprise in Eastern Siberia for the production of petroleum products and petrochemistry - JSC Angarsk Petrochemical Company, and this is annually confirmed by statistics.
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Degtyareva, I. A., and G. F. Rakhmanova. "Accelerated technology for cleaning oil-contaminated soils." Agrarian science, no. 3 (March 25, 2024): 104–8. http://dx.doi.org/10.32634/0869-8155-2024-380-3-104-108.
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Relevance. The uniqueness of the practical application of accelerated and environmentally safe technology for the reclamation of oil–polluted lands, which uses local mineral raw materials, a consortium of autochthonous hydrocarbon-oxidizing bacteria with multifunctional positive properties, effective phytomeliorants, is theoretically substantiated. Hydrocarbon pollution is eliminated directly at the spill site, and the rate ofreturn of disturbed soils to agricultural circulation is 3–4 times faster than traditional methods.Methods. Objects of research: mechanically activated bentopowder and nanobentonite, a consortium of hydrocarbon-oxidizing bacteria composed of three autochthonous strains, soil leached chernozem, spring wheat, Devonian oil. The concentration of oil pollution at the site was 6.4%. Bentopowder and nanobentonite were introduced in doses of 6.0 t/ha and 0.3 t/ha, respectively. Sampling was carried out with a sampler on the 0th, 15th, 30th, and 90th days.Results. The optimal doses of application of bento powder and nano bentonite to disturbed soil above the average pollution level (6.0 t/ha and 0.3 t/ha respectively) are recommended. After 15 days, the level of contamination is halved (to 51.1 g/kg and 40.8 g/kg with benton powder and nanobentonite respectively). Removal of the introduced mineral sorbent is not required, since it later becomes a source of mineral nutrition for autochthonous microorganisms-destructors and a soil improver. At the second innovative stage, a consortium formed from effective strains and adapted to specific conditions is used. The strains of the consortium fit into an ecological niche, adapt and begin to actively develop, utilizing oil and petroleum products. After a month, the level of contamination decreases to 19.2 g/kg and 9.2 g/kg with the addition of benton powder and nanobentonite respectively.
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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 (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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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 (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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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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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 (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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Krainiukov, Olekcii, Inna Miroshnychenko, Olesia Sіabruk, and Yevheniia Hladkikh. "Effect of oil contamination on the course of changes in chernozem properties and phytotoxicity." 57, no. 57 (December 1, 2022): 296–306. http://dx.doi.org/10.26565/2410-7360-2022-57-22.
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Introduction. The consumption of hydrocarbons in the world is steadily growing with the response to the progress of civilization. It is accompanied by the continuous flow of hydrocarbon pollutants into the environment. Soil pollution with oil attracts special attention, because the soil is a key element in the trophic chain of toxicants in the human body. Purpose. Investigate changes in the properties (physicochemical, agrochemical and biological) of chernozem soils and its phytotoxicity at different levels of oil pollution for further use of the parameters of these indicators during soil monitoring. Research methods. The research was conducted during 2019-2021 in the conditions of the Left-Bank Forest-Steppe of Ukraine in a field small-plot experiment on Chernozem Luvic with the frequency of observations on diagnostic indicators at 1 month, 6, 12 and 24 months. The scheme of the experiment provided for soil contamination with oil in the amount of 0.4 l/m2, 1.6 l/m2, 6.4 l/m2, 25.6 l/m2. Results. The rate of biodegradation of oil products for different levels of pollution of Chernozem Luvic was determined - with insignificant pollution, self-purification of the soil is characterized by a faster course than with medium and strong, within 24 months the content of hydrocarbons decreased by 85-87% and 60-64%, respectively. One of the important mechanisms for the loss of hydrocarbons from the soil surface is microbiological decomposition, studies have shown that in the oil concentration range of 6.4-24.6 l/m2, there was a significant increase in the intensity of carbon dioxide release from the soil, which is 60% higher than in the control option, this indicates the intensification of the processes of its biodegradation. Studies of changes in such diagnostic indicators as soil pH, the content of water-soluble potassium and sodium show a less significant influence of the factor of soil pollution with oil compared to the influence of the time factor. However, these indicators are of great diagnostic value in the process of monitoring oil-contaminated soils and remediation, since the most optimal parameters of these indicators determine the suitability of soils for plant growth and microbial life. Studies of phytotoxicity of oil-contaminated soil have shown the negative impact of oil on seed germination in the field condition. Conclusions. The research results indicate a gradual self-purification of the soil from petroleum hydrocarbons during the observation period. The obtained regularities of the dynamics of changes in the studied parameters will be used to improve the scientific and methodological support for monitoring soils affected by oil pollution.
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Lifshits, S. Kh, Yu S. Glyaznetsova, I. N. Zueva, and O. N. Chalaya. "Increase in Plant Survival in the Processes of Phytoremediation of Oil-Contaminated Soils of the Permafrost Zone." IOP Conference Series: Earth and Environmental Science 988, no. 4 (2022): 042017. http://dx.doi.org/10.1088/1755-1315/988/4/042017.
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Abstract Oil and oil products are among the most common soil contaminants. The phytoremediation method is widely used to restore oil-contaminated soils. Permafrost conditions are an additional stress factor for plant growth. The experimental results showed that the dependences of the physiological characteristics of plants on the amount of added oil are nonlinear, which indicates the adaptive nature of these changes. Small amounts of oil (0.16-0.25%) even stimulate plant growth. However, oil additions in excess of 0.82% already inhibit plant growth. The study of increasing plant survival in permafrost soils in a toxic environment (oil pollution) showed that positive results had been achieved by soaking seeds in solutions of biologically active substances. Seed soaking increased the resistance of plants even at the stage of seed treatment, which contributes to their survival in a toxic oil-polluted environment. For example, it is possible to recommend a sowing of Vicia sativa seeds that have been pre-treated by soaking in salicylic acid solutions of different concentrations or humate for increase the effectiveness of measures to clean up areas from oil pollution.
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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 (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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Gaivoronsky, Vladimir G., Sergei I. Kolesnikov, Anna A. Kuzina, and Kamil Sh Kazeev. "Changes in Catalase Activity in Crimean Soils Due to Fuel Oil Contamination." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 1 (217) (March 31, 2023): 137–41. http://dx.doi.org/10.18522/1026-2237-2023-1-137-141.
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The change in the activity of catalase in the main soils of the Crimean Peninsula under the contamination with fuel oil was estimated. It has been established that with an increase in the degree of soil contamination with fuel oil, the activity of catalase decreases. A series of resistance of the main soils of the Crimea to fuel oil pollution was built according to the activity of catalase (soils are arranged as their resistance decreases): brown leached red-colored (73) > incompletely developed chernozems (65) = brown calcareous (65) > dark chestnut solonetzic ( 60) ≥ brown forest slightly unsaturated (55) ≥ chernozems of residual carbonate (51) = southern chernozems (51). The established sequence is determined by the degree of structure and biological activity of soils, which affect the oxidative conditions and the rate of destruction of fuel oil in the soil.
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Egorova, D. O., and S. A. Buzmakov. "Bioremediation of Oil-contaminated Dark Gray Soils Using Bacterial and Plant Agents." Ecology and Industry of Russia 26, no. 3 (2022): 17–21. http://dx.doi.org/10.18412/1816-0395-2022-3-17-21.
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The pilot study demonstrated efficienct purification of dark gray soils of oil pollution (58–5780 mg HC/kg dry soil) by biological objects. Cleaning efficiency demonstrated in the range from 22.92 to 97.57 % depending on soil, pollutant concentration, as well as bioremediation model applied. It was identified that combined technologies application for bioaugmentation of bacterial strains and phytoremediation allow an efficient restoration of oil-contaminated dark gray soils.
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Ebong, Godwin, Eno Moses, Otobong Akpabio, and Rosemary Udombeh. "Physicochemical Properties, Total Concentration, Geochemical Fractions, and Health Risks of Trace Metals in Oil-Bearing Soils of Akwa Ibom State, Nigeria." Journal of Materials & Environmental Sustainability Research 2, no. 4 (2022): 1–18. http://dx.doi.org/10.55455/jmesr.2022.009.
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The physicochemical properties, total metal, metal fractions, and related human health problems of metals in oil-bearing soils of Akwa Ibom State were appraised using standard procedures. The study aimed at assessing the effects of crude oil and related activities on the properties of soil including metals (Cd, Cr, Ni, Pb and V), their fractions and associated health problems. Results showed that, levels of parameters were higher in the soils examined than in the control. The entire metals examined, apart from Cd, were within their acceptable limits however; higher than the limits for agricultural soils. Cd and Cr existed mainly in the readily available fraction, while Ni, Pb, and V occurred mainly in the reducible fraction in the studied soils. Conversely, these metals, except Cd, occurred principally in the inert fraction in the control. V/Ni ratio confirmed the soils as oil-forming continents and of organic matter origin. The natural factor, crude oil, and oil-related activities were major sources of soil contaminants. Anthropogenic proportions of metals were more in the soils investigated than in the background soil. The locations were contaminated with metals. Daily intake rates of metals were within their recommended doses except for Pb. The pollution status of the oil-bearing soils and the related human health risks have been revealed.
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Pashayan, A. A., A. V. Nesterov, O. S. Shchetinskaya, and E. A. Melnikova. "Recultivation of Oil-Contaminated Soils by Reagent Encapsulation with their Subsequent Phytoremediation." Ecology and Industry of Russia 26, no. 9 (2022): 20–25. http://dx.doi.org/10.18412/1816-0395-2022-9-20-25.
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A critical analysis of existing technologies to reduce the toxicity of oil-contaminated soils is presented . It is noted that carbonate capsules of oil in soils in the natural environment decompose under the influence of precipitation (pH ≤6). New technologies of non-carbonate encapsulation are proposed, in which water-insoluble crystallization centers are formed in the matrix of contaminated soils, around which capsule shells mature and grow, isolating oil droplets with the soil. It is shown that reagent encapsulation technologies in combination with phytoremediation make it possible to restore oil-contaminated soils. It is determined that the encapsulation process prevents the harmful effects of oil on the soil and groundwater. It is shown that the seeds of various plants grow approximately equally in both encapsulated and pure soil, whereas they die in soils contaminated with petroleum products. It is concluded that plants assimilate the petroleum hydrocarbons contained inside the capsules, using them as a source of energy and carbon. That is, over time, the oil products inside the capsules may completely disappear, and the soils will be reclaimed.
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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) (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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ROZSNYAI, Mariana, Georgiana PLOPEANU, and Mihai MARINESCU. "PRELIMINARY DATA REGARDING BIOREMEDIATION OF SOILS POLLUTED WITH PETROLEUM HYDROCARBONS BY USING CYCLODEXTRINS." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 52, no. 1 (2023): 442–47. http://dx.doi.org/10.52846/aamc.v52i1.1373.
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The main characteristics of the pollution caused by refineries and petrochemical plants is that the source of pollution is active, most of the time, for a short period of time, but has an important intensity, the pollutiong agent being usualy made up of limited pretoleum fractions. Also, in most of tha cases of accidental spills of petroleum products, the affected soil surface is much smaller than the contaminated surface of the first aquifer encountered by the pollution front. The crude oil resulting from the extraction, having a complex composition, acts on the soil depending on the amount, composition and properties of the organic and inorganic components contained. β-Cyclodextrin is a chemical substance with the molecular formula C42H70O35. Cyclodextrins were the first compounds studied in terms of complexation behaviour and catalytic properties, the objective being to mimic enzymes. The paper presents data concerning the soil physical, chemical and biological characteristics and chemical characteristics of crude oil that will be used in the Greenhouse experiment. Also, in the paper is achieved the state of the art for β-cyclodextrins used in bioremediation of soils polluted with petroleum hydrocarbons.
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Melekhina, Elena N., Elena S. Belykh, Vladimir A. Kanev, et al. "Soil Microbiome in Conditions of Oil Pollution of Subarctic Ecosystems." Microorganisms 12, no. 1 (2023): 80. http://dx.doi.org/10.3390/microorganisms12010080.
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The present study aimed to investigate the recovery of soil quality and the bacterial and fungal communities following various recultivation methods in areas contaminated with oil. Oil spills are known to have severe impacts on ecosystems; thus, the restoration of contaminated soils has become a significant challenge nowadays. The study was conducted in the forest–tundra zone of the European North-East, where 39 soil samples from five oil-contaminated sites and reference sites were subjected to metagenomic analyses. The contaminated sites were treated with different biopreparations, and the recovery of soil quality and microbial communities were analyzed. The analysis of bacteria and fungi communities was carried out using 16S rDNA and ITS metabarcoding. It was found that 68% of bacterial OTUs and 64% of fungal OTUs were unique to the reference plot and not registered in any of the recultivated plots. However, the species diversity of recultivated sites was similar, with 50–80% of bacterial OTUs and 44–60% of fungal OTUs being common to all sites. New data obtained through soil metabarcoding confirm our earlier conclusions about the effectiveness of using biopreparations with indigenous oil-oxidizing micro-organisms also with mineral fertilizers, and herbaceous plant seeds for soil remediation. It is possible that the characteristics of microbial communities will be informative in the bioindication of soils reclaimed after oil pollution.
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Zhao, Xiaoli, Zihan Liu, Jichao Zuo, et al. "Comparison of Oil Extraction and Density Extraction Method to Extract Microplastics for Typical Agricultural Soils in China." Agronomy 14, no. 6 (2024): 1193. http://dx.doi.org/10.3390/agronomy14061193.
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Microplastic pollution in agricultural soil threatens soil quality and human health which has attracted extensive attention worldwide. However, there is no uniform standard for microplastic extraction methods and the identification of microplastic component in different typical agricultural soils. In this study, an artificial simulation adding experiment was used in eight typical agricultural soil samples in China. The aim of the study was to use different methods for extraction, comparing the extraction rates of four microplastics and their influence on polymer identification using ATR- FTIR. The two separate methods were oil extraction (water + oil and saturated NaCl solution + oil), and density method (saturated NaCl solution). The four types of microplastics include polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyethylene (PE). We found that the oil extraction method effectively extracted four types of microplastics in agricultural soils, which varied from 83.33% to 100.00%. However, the extraction rate of PET under the oil extraction method and PP under the density method from Southern laterite area was lower than other soils. The presence of iron and aluminum ions influenced the extraction rates of microplastics in the Southwest laterite area. With the increase in microplastic density, the extraction rates of the density method decrease. The oil extraction methods with the cleaning of residual oil were recommended for the higher density microplastics. The density method was recommended for the lighter microplastics in agricultural soils. However, these two extraction methods were not ideal to extract the microplastics from the Southern laterite area and the appropriate extraction methods for laterite need to be further studied in the future. Our results can provide technical support for the extraction treatment and scientific microplastic pollution control of typical agricultural soils with different erosion areas.
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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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Akhmetov, Lenar I., Irina F. Puntus, Roza A. Narmanova, et al. "Recent Advances in Creating Biopreparations to Fight Oil Spills in Soil Ecosystems in Sharply Continental Climate of Republic of Kazakhstan." Processes 10, no. 3 (2022): 549. http://dx.doi.org/10.3390/pr10030549.
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The problem of eliminating petroleum pollution and its consequences is currently very relevant for Kazakhstan, which is among the ten largest oil-producing countries. The specifics of natural conditions—the sharply continental arid climate—necessitate the development and application of adequate technologies for the restoration of oil-contaminated territories and the Caspian seashore. The key factors (temperature, moisture, alkalinity, salinity, low mineral and organic matter content) affect the self-purification processes and microbiological status of oil-contaminated soils of Kazakhstan. The assessment of taxonomic diversity and characteristics of oil-degrading microorganisms isolated from samples of soils and reservoirs contaminated with hydrocarbons are given. The review of biopreparations and biotechnologies developed and used in Kazakhstan for cleaning environments from oil pollution is made, and their effectiveness is shown. The analysis of the current state of research in the field of biodegradation of hazardous pollutants and bioremediation of oil-contaminated areas allows us to identify promising areas of further work and approaches to the development and improvement of technologies for environmental protection.