Relevant bibliographies by topics / Petroleum degradation

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Petroleum degradation'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Petroleum degradation"

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Varjani, Sunita J. "Microbial degradation of petroleum hydrocarbons." Bioresource Technology 223 (January 2017): 277–86. http://dx.doi.org/10.1016/j.biortech.2016.10.037.

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Li, Xingchun, Wei He, Meijin Du, Jin Zheng, Xianyuan Du, and Yu Li. "Design of a Microbial Remediation Inoculation Program for Petroleum Hydrocarbon Contaminated Sites Based on Degradation Pathways." International Journal of Environmental Research and Public Health 18, no. 16 (August 20, 2021): 8794. http://dx.doi.org/10.3390/ijerph18168794.

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This paper analyzed the degradation pathways of petroleum hydrocarbon degradation bacteria, screened the main degradation pathways, and found the petroleum hydrocarbon degradation enzymes corresponding to each step of the degradation pathway. Through the Copeland method, the best inoculation program of petroleum hydrocarbon degradation bacteria in a polluted site was selected as follows: single oxygenation path was dominated by Streptomyces avermitilis, hydroxylation path was dominated by Methylosinus trichosporium OB3b, secondary oxygenation path was dominated by Pseudomonas aeruginosa, secondary hydroxylation path was dominated by Methylococcus capsulatus, double oxygenation path was dominated by Acinetobacter baylyi ADP1, hydrolysis path was dominated by Rhodococcus erythropolis, and CoA path was dominated by Geobacter metallireducens GS-15 to repair petroleum hydrocarbon contaminated sites. The Copeland method score for this solution is 22, which is the highest among the 375 solutions designed in this paper, indicating that it has the best degradation effect. Meanwhile, we verified its effect by the Cdocker method, and the Cdocker energy of this solution is −285.811 kcal/mol, which has the highest absolute value. Among the inoculation programs of the top 13 petroleum hydrocarbon degradation bacteria, the effect of the best inoculation program of petroleum hydrocarbon degradation bacteria was 18% higher than that of the 13th group, verifying that this solution has the best overall degradation effect. The inoculation program of petroleum hydrocarbon degradation bacteria designed in this paper considered the main pathways of petroleum hydrocarbon pollutant degradation, especially highlighting the degradability of petroleum hydrocarbon intermediate degradation products, and enriching the theoretical program of microbial remediation of petroleum hydrocarbon contaminated sites.
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Sun, Yanying, Fei Liu, Honghan Chen, and Wei He. "Degradation of petroleum contaminants in oil." Chinese Journal of Geochemistry 25, S1 (March 2006): 126–27. http://dx.doi.org/10.1007/bf02839982.

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Okpokwasili, G. C., and S. C. Amanchukwu. "Petroleum hydrocarbon degradation by Candida species." Environment International 14, no. 3 (January 1988): 243–47. http://dx.doi.org/10.1016/0160-4120(88)90145-6.

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Sun, Xiao Nan, An Ping Liu, Wen Ting Sun, and Shu Chang Jin. "The Remedial Effect of the Decomposing Bacteria on Different Petroleum Hydrocarbon Contamination." Advanced Materials Research 414 (December 2011): 88–92. http://dx.doi.org/10.4028/www.scientific.net/amr.414.88.

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Petroleum contamination has become one of the major soil contaminations. Aiming at petroleum hydrocarbon contamination, the multi-group opposite experiments is set; this paper use some petroleum hydrocarbon-decomposing bacteria to remedy the soil contaminated by different carbon chain petroleum hydrocarbons. Compare and study the remedial results, and study the growth of the bacteria in the decomposing process. The Study shows that the degradation rate of the bacteria to short-chain petroleum hydrocarbons is relatively high; Within 40 days without nutrient substance, degradation rate of bacteria to gasoline and diesel is 80%, degradation rate of bacteria to aromatics and lubricants is 50%, the trend of bacteria’s growth curve and the degradation rate curve of each component are approximate.
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Li, Chun Rong, Abao Wei, and Tao Chen. "Phytoremediation of Petroleum-Contaminated Soil." Advanced Materials Research 356-360 (October 2011): 2737–40. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.2737.

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Corn, sunflower and alfalfa were taken as remediation plants. Their phytoremediation and degradation kinetic of petroleum were investigated under field experiment. The results indicated that petroleum degradation rates of corn, sunflower and alfalfa remediation areas reached 42.5%, 46.4% and 44.7% after 150 days of remediation, which were increased by 100.5%, 118.9% and 110.8% compared with that in control area, respectively. Petroleum degradation rates of sunflower remediation areas﹥alfalfa remediation areas’﹥corn remediation areas’, whose half-lifes were 165d, 182d and 193d, respectively, which were decreased by 297d, 279d and 269d compared with that in control area, respectively. The remediation effects of corn, sunflower and alfalfa were obvious.
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Xu, Hui, Wen Jun Xie, and Zhao Hua Lu. "Petroleum Contaminated Soil Remediation Using Six Wild Plant Species in the Yellow River Delta." Applied Mechanics and Materials 246-247 (December 2012): 598–601. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.598.

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The tolerance and remediation efficiency of six local wild plant species in petroleum-contaminated soils in the Yellow River Delta were conducted at three contaminated levels, i.e., uncontaminated soil (control), soil contamination by petroleum at 1.48% (w/w, TI), and soil contamination by petroleum at 2.96% (w/w, TII). After 60 days, six plant species showed different petroleum contamination tolerance and degradation capability in soil. The degradation ability of Setaria viridis, Alopecurus pratensis and Echinochloa crusgalli(L) Beauv was significantly higher than that of Festuca elata, Eleusine indica (P<0.05). Suaeda salsa had the least degradation ability. Plant had the high ability to degrade petroleum in the weak pollution soil, which might be due to the low re-straining effect on plant growth. Based on their petroleum contamination tolerance and removal ef-ficiency, we suggest Alopecurus pratensis, Setaria viridis, Echinochloa crusgalli (L.) Beauv and Festuca elata are suitable for petroleum-contaminated soil remediation in the Yellow River Delta.
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Huang, Shengmao, Haiwen Han, Xiuren Li, Dehai Song, Wenqi Shi, Shufang Zhang, and Xianqing Lv. "Inversion of the Degradation Coefficient of Petroleum Hydrocarbon Pollutants in Laizhou Bay." Journal of Marine Science and Engineering 9, no. 6 (June 13, 2021): 655. http://dx.doi.org/10.3390/jmse9060655.

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When petroleum hydrocarbon pollutants enter the ocean, besides the migration under hydrodynamic constraints, their degradation due to environmental conditions also occurs. However, available observations are usually spatiotemporally disperse, which makes it difficult to study the degradation characteristics of pollutants. In this paper, a model of transport and degradation is used to estimate the degradation coefficient of petroleum hydrocarbon pollutants with the adjoint method. Firstly, the results of a comprehensive physical–chemical–biological test of the degradation of petroleum hydrocarbon pollutants in Laizhou Bay provide a reference for setting the degradation coefficient on the time scale. In ideal twin experiments, the mean absolute errors between observations and simulation results obtain an obvious reduction, and the given distributions can be inverted effectively, demonstrating the feasibility of the model. In a practical experiment, the actual distribution of petroleum hydrocarbon pollutants in Laizhou Bay is simulated, and the simulation results are in good agreement with the observed ones. Meanwhile, the spatial distribution of the degradation coefficient is inverted, making the simulation results closer to the actual observations.
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Aitkeldiyeva, S. A., E. R. Faizulina, L. G. Tatarkina, M. B. Alimzhanova, S. T. Daugaliyeva, О. N. Auezova, A. V. Alimbetova, G. A. Spankulova, and A. K. Sadanov. "DEGRADATION OF PETROLEUM HYDROCARBONS WITH THERMOTOLERANT MICROORGANISMS." Rasayan Journal of Chemistry 13, no. 02 (2020): 1271–82. http://dx.doi.org/10.31788/rjc.2020.1325580.

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Lustosa, Mayara A., Jorge A. López, Karla C. Santos Freire, Francine F. Padilha, María Lucila Hernández-Macedo, and Rebeca Y. Cabrera-Padilla. "Petroleum hydrocarbon degradation by isolated mangrove bacteria." Revista peruana de Biología 25, no. 4 (December 7, 2018): 441. http://dx.doi.org/10.15381/rpb.v25i4.15537.

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Los hidrocarburos de petróleo representan un problema mundial, pues su acumulación promueve un serio impacto ambiental. Así, el uso de microorganismos, por ejemplo los de la microbiota de manglares, como agentes degradadores de diversas fuentes de carbono, es poco explotado en procesos de remediación ambiental. Así, este estudio evaluó in vitro el potencial degradador de bacterias aisladas de sedimento de manglar en la degradación de hidrocarburos. El análisis genético usando el marcador 16S rRNA reveló secuencias íntimamente relacionadas (99%) con Proteobacterium, Pseudomonas y Exiguobacterium. Los resultados mostraron el crecimiento de bacterias en medio salino mineral (MSM) conteniendo petróleo o diesel al 1%, como fuentes de carbono. Este crecimiento, determinado por densidad óptica (DO) a 595 nm durante 15 días, con toma de muestras a cada 48 h, indicó la matabolización de hidrocarburos. Sin embargo, las bacterias fueron más eficientes en degradarlos. Por lo tanto, los resultados muestran la potencial aplicación de las bacterias en procesos de biorremediación por su capacidad metabólica y adaptativa de crecimiento usando hidrocarburos.
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Dissertations / Theses on the topic "Petroleum degradation"

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Phillips, Pamela June. "Microbial degradation of hydrocarbons in aqueous systems." Thesis, University of Surrey, 2003. http://epubs.surrey.ac.uk/842666/.

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There is a vast worldwide consumption of petroleum hydrocarbons and accidental release in to the environment is common. For example petroleum forecourt retail outlets have 'interceptors' to prevent release of hydrocarbons into the environment. The aim of this study was to investigate options for in-situ bioremediation of the hydrocarbon substrates within these 'interceptors' in a laboratory model. The initial studies on bioremediation were undertaken with diesel as the substrate. It was shown that the addition of nitrogen and phosphorus to the system increased hydrocarbon mineralisation by a factor of 16, resulting in increased carbon dioxide evolution. There was strong evidence indicating that nitrogen and phosphorus were the limiting factor for hydrocarbon metabolism in this aqueous system. Trichoderma harzianum and a soil bacterial isolate LFC D1 FI were assessed and shown to degrade hexadecane and pristane. The positive affect of adding a cosubstrate was evident in flask studies; the rates of degradation by LFC D1 FI and T. harzianum were approximately doubled and tripled respectively in the presence of glucose compared to treatments without glucose. Previous attention has focused on the ability of Phanerochaete chrysosporium to degrade polycyclic aromatic hydrocarbons; in this study the degradation of aliphatics was investigated. Spores from P. chrysosporium induced on the hydrocarbon substrate were found to be necessary to degrade hexadecane. Pseudomonas putida was unable to grow in liquid media containing hydrocarbons, however on solid media and in an aqueous environment containing acid-washed sand, degradation of hydrocarbons was evident, hi the presence of sand P. putida degraded both hexadecane and pristane by 70% of the initial concentration added; in the absence of sand no degradation in the aqueous system was seen. This suggests surface attachment plays an important role in hydrocarbon degradation by P. putida. The attachment and use of the sessile P. putida in aliphatic hydrocarbon degradation is discussed.
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Wilson, Nicola Gail. "Enhanced oil degradation by bacteria when immobilized to an oleophilic substratum." Thesis, University of Plymouth, 1996. http://hdl.handle.net/10026.1/2603.

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Three immobilization matrices, Biofix (kaolinite microspheres), Drizit (polypropylene fibres) and polyester polyurethane were used as substrata for use in bioremediation. Enhanced biodegradation of petrol (Slovene diesel) and Ekofisk crude oil occurred with immobilization of Pseudomonas fluorescens to Biofix and Drizit in freshwater and saltwater systems. When compared to free bacteria, immobilization resulted in; increased growth, accelerated ability of the cells to utilize oil, and enhanced biodegradation as determined by gas chromatography. In the freshwater systems Drizit immobilized cells reduced the lag phase to one day in comparison to six in a free system and increased biodegradation of the n-alkanes by 67 %. Immobilization resulted in enhanced production of a rhamnolipid biosurfactant over the first three days of incubation in comparison to free living bacteria which showed a lag phase of two days. All three supports were compared by; scanning electron microscopy, cell loading capacity, absorption of oil, their abilities to enhance oil biodegradation and the effect of drying and storage on the immobilized cells. Biodegradation of hydrocarbons by immobilized cells was dependent on the biocarrier, with polyurethane immobilized cells failing to enhance biodegradation of Ekofisk crude oil. Drizit was the most effective biocarrier tested and the most suitable immobilization substratum for use as a bioremediation agent. Investigation into the location of the genes for alkane degradation in immobilized Pseudomonas fluorescens was undertaken. Plasmid DNA was detected using gel electrophoresis, and caesium chloride-ethidium bromide gradient was carried out to confirm the presence of the plasmid, but no plasmid band was visualized. The successful immobilization system was scaled-up, optimized by supplementation with nitrates and phosphates and applied to microcosms that modelled environmental conditions. Enhanced biodegradation of Ekofisk crude oil was demonstrated on a larger scale, in an estuarine microcosm, with the immobilized systems showing an average degradation of 41.9 % in comparison to 7.1 % in the microcosm containing free indigenous bacteria.
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Omukoro, Dickson Ebikabowei. "Petroleum operations and environmental degradation in Nigeria : the consequences of the state's failure to sustainably develop its petroleum resources." Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235313.

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The need for a sustainable development of natural resources has, in recent time taken centre stage in most natural resource rich countries. Environmental degradation resulting from the unsustainable development of petroleum resources has also resulted in the impoverishment of a large number of people. In countries like Nigeria, revenue accruing from energy and natural resources projects has become the mainstay of the nation's economy. However, the main beneficiaries of the wealth created by the exploration and production of petroleum are the state who owns all natural resources in line with the provisions of Nigerian law and the companies that exploit these resources. As a result, local landowners, do not directly benefit from petroleum exploitation even though they bear the direct consequences of petroleum exploitation. One consequence is the reduction of productive agricultural lands which has disrupted some of the traditional occupations of the people in the Niger Delta where the bulk of Nigeria's petroleum production takes place. It is this disruption that is the focus of this thesis. Despite Nigeria's support for the sustainable development of Nigeria's petroleum resources, environmental degradation resulting from the exploitation of petroleum has continued unabated. This raises a fundamental question as to the effectiveness of the regulatory regime governing petroleum activities in Nigeria. Using doctrinal and socio-legal methodology, this thesis explores the existing regulatory regime to ascertain if it is robust enough or effective to ensure the sustainable development of Nigeria's petroleum resources. It considers what impact, if any, does a failure in the regulatory regime have on the local population. Having established the failure of the legal regime, the study examines the consequences of the State's failure to sustainably develop its petroleum resources and consider if s Having established the failure of the legal regime, the study examines the consequences of the State's failure to sustainably develop its petroleum resources and consider if such failure has any impact on the stability and sustainability of petroleum projects themselves. Perhaps the most surprising finding to emerge from this study is that while the failure of the regulatory regime has negatively impacted the local population, the resulting social unrest or risks does not negatively impact the stability and sustainability of petroleum projects in real terms when compared with the cost of improving environmetal practices. In the search for solutions to address the failure of the existing regime and its consequences, the study examined relevant provisions of the new Petroleum Industry Bill (PIB) intending to ascertain if there are significant improvements capable of ensuring the sustainable development of Nigeria's petroleum resources. It concludes that while the PIB contains some improvements on the existing regulatory regime, there are problematic provisions that require some attention if the nation is to achieve the goal of sustainable development of its petroleum resources.
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Heath, David John. "Characterisation of waxy gas-condensates by high temperature capillary gas chromatography and oxidative degradation." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/460.

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High molecular weight (HMW) hydrocarbons (defined herein as C35+ compounds) are difficult to characterise by conventional analytical methods. Very few studies have reported precise and reproducible quantification of such compounds in fossil fuels. Nonetheless, such components have important effects on the physical and biological fate of fossil fuels in the geosphere. For example, the phase behaviour of waxy gas condensates is significantly affected by the varying proportions of HMW compounds. Similarly HMW compounds are amongst the most resistant petroleum components to biodegradation. The current study reports the development of reproducible quantitative high temperature capillary gas chromatography (HTCGC) methods for studying both these aspects of the chemistry of HMW hydrocarbons. In addition those hydrocarbons which remain unresolved when analysed by gas chromatography (so called unresolved complex mixtures UCMs) are also studied. UCMs may account for a large portion of the hydrocarbons in many fossil fuels yet very little is known about their composition. Knowledge of these compounds may be important in enhancing the prediction of phase behaviour. Oxidative degradation and GC-MS is used to elucidate the types of structures present within the UCM. The concentrations of C3S4h. ydrocarbons in two unusually waxy gas condensates from high temperature wells in the North Sea were determined by HTCGC. The whole C, 5+ fraction comprised about 20% of the total hydrocarbons and consisted of compounds with carbon numbers extending up to and beyond Coo. By paying particular attention to sample dissolution and injection, good reproducibility and precision were obtained. For example, for authentic n-C, to n-C60 alkanes a relative standard deviation of under 5% for manual injection, linear response factors (1.01 Cm to 0.99 C6), and a linear calibration for 5 ng to 25 ng on-column were found. Limits of detection are reported for the first time for HMW n-alkanes. The limits were found to be as low as 0.8 ng for Cto to 1.87 ng for C60. Tristearin is proposed as a suitable HTCGC internal standard for quantification since the FID response factor (1.1) was close to that of the HMW n-alkanes and response was linear. Importantly, when co-injected with the two waxy North Sea condensates, tristearin was adequately separated from the closest eluting alkanes, n-C59 and n-C60 under normal operating conditions. Qualitative characterisation of the HMW compounds in the waxy gas condensates and in synthetic wax blends (polywax 1000) using HTCGC-EI MS and HTCGC-CI MS produced molecular ions or pseudo molecular ions for n-alkanes up to n- C6o. The spectra of some HMW compounds contained fragment ions characteristic of branched compounds but detailed characterisation was very limited. This study has also shown, for the first time, the significance of the unresolved complex mixture in gas condensatesU. CM hydrocarbonsa ccountedf or over 20% of the total hydrocarbons in a waxy North sea condensateT. he condensatew as first distilled and the distillate UCMs isolated. Thesew ere found to be between 64 to 97 % unresolved after molecular sieving (5A) and urea adduction. The UCMs were oxidised using CrO3/AcOHw hich produced5 -12% C02, and 55-83% dichloromethane-solublep roducts. Thus 65-94% of the original UCMs were accounted for as oxidation products. The remainder were thought to be water soluble acids which could not be determined in the presence of the AcOH reagent. Of the recovered oxidised products, 27- 81 % were resolved and these comprised mainly n-monocarboxylic acids (19-48 %). The average chain length was found to be C12 indicating the average length of alkyl groups. Branched acids, ketones, ketoacids, ndicarboxylic acids, branched dicarboxylic acids, lactones, isoprenoid acids, alkylcyclohexane carboxylic acids and toluic acids accounted for the majority of the remaining resolved products. The distillate UCMs all showed variations in amountso f productsb ut not in composition. Retro-structurala nalysis suggestedth at the UCM in the gasc ondensatew as mainly aliphatic and branched.T he numbero f isomerso f simple brancheda lkaneso ver the UCM molecular weight range (determined by cryoscopy) was calculated to be over 15000. Overall, oxidation provided structural information for about half of the UCM. HTCGC was also used to measure the biodegradability of HMW alkanes in a waxy Indonesian oil. Traditional alkane isolation techniques (TLC and CC) discriminated against HMW compounds above C40 whereas adsorption onto alumina in a warm cyclohexane slurry provided an aliphatic fraction still rich in HMW compounds and suitable as a biodegradation substrate. A waxy Indonesian oil was subjected to 136 day biodegradation by Pseudomonas fluorescens. Extraction efficiencies of over 90 % (RSD <5 %) were obtained for n-alkanes up to C6o using continuous liquid-liquid extraction. Over 80 % of the oil aliphatic fraction was degraded within 14 days. After 136 days only 14% of the original aliphatic fraction remained, yet surprisingly no decreases in the concentrations of compounds above C45 were observed. However, the use of a rapid screening biodegradation method proved conclusively that Pseudomonasfluorescens was capable of utilising n-alkanes up to C60 once the bacteria had acclimated to the HMW alkanes. This is the first report of bacterial utilisation of an n-alkane as large as C.
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Basu, Pradipta Ranjan. "Evaluation of biological treatment for the degradation of petroleum hydrocarbons in a wastewater treatment plant." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2418.

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Biodegradation of petroleum hydrocarbon can be an effective treatment method applied to control oil pollution in both fresh water and marine environments. Hydrocarbon degraders, both indigenous and exogenous, are responsible for utilizing petroleum hydrocarbon as their substrate for growth and energy, thereby degrading them. Biodegradation of hydrocarbons is often enhanced by bioaugmentation and biostimulation depending on the contaminated environment and the competence of the hydrocarbon degraders present. An evaluation of the performance of the biological treatment of petroleum hydrocarbon by the hydrocarbon degrading microbes at the Brayton Fire School??s 4 million gallon per day (MGD) wastewater treatment plant was the main research objective. Samples were taken for two seasons, winter (Nov 03 ?? Jan 03) and summer (Jun 04 ?? Aug 04), from each of the four treatment units: the inlet tank, equalization tank, aeration tank and the outfall tank. The population of aliphatic hydrocarbon degraders were enumerated and nutrient availability in the system were used to evaluate the effectiveness of on-going bioaugmentation and biostimulation. Monitoring of general effluent parameters was conducted to evaluate the treatment plant??s removal efficiency and to determine if effluent discharge was in compliance with the TCEQ permit. The aeration tank is an activated sludge system with no recycling. Hydrocarbon degraders are supplied at a constant rate with additional nutrient supplement. There was a significant decrease in the population of microbes that was originally fed to the system and the quantity resident in the aeration tank. Nutrient levels in the aeration tank were insufficient for the concentration of hydrocarbon degraders, even after the application of dog food as a biostimulant. The use of dog food is not recommended as a nutrient supplement. Adding dog food increases the nitrogen and phosphorus concentration in the aeration tank but the amount of carbon being added with the dog food increases the total chemical oxygen demand (COD) and biochemical oxygen demand (BOD). An increase in the concentration of total COD and BOD further increases the nitrogen and phosphorus requirement in the system. The main objective of supplying adequate nutrients to the hydrocarbon degraders would never be achieved as there would be an additional demand of nutrients to degrade the added carbon source. This research study was conducted to identify the drawbacks in the treatment plant which needs further investigation to improve efficiency.
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Wright, Jonathan David. "The degradation of 4-hydroxybenzoate and related aromatic compounds by Rhodotorula rubra and Penicillium citrinum isolated from diesel oil contaminated soil." Thesis, University of Hull, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259737.

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Roy, Michelle-Claire. "Petrogenic Hydrocarbons in the Peace-Athabasca Delta and their Potential for Microbial Degradation." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38749.

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Microbial biodegradation is the primary mechanism by which petrogenic hydrocarbons (PHCs) are removed from the environment. Though hydrocarbon biodegradation is widely studied in marine systems, knowledge of how it occurs in freshwater systems is still lacking. The Peace-Athabasca Delta (PAD), located in northeastern Alberta, is an ideal location to study microbial hydrocarbon degradation since it has a long history of exposure to PHCs. What’s more, these PHCs are predominately sourced from bituminous deposits and are therefore relevant to the Canadian Oil Sands Industry. This thesis investigated the genetic potential for hydrocarbon degradation of PHCs via metagenomic reconstruction of microbial communities in lakes of the Peace and Athabasca Deltas, as well as reference lakes in the nearby boreal uplands. In order to properly evaluate the microbial community and its potential for hydrocarbon degradation, a comprehensive analysis of PHCs (including n-alkanes, polycyclic aromatic compounds (PACs), and petroleum biomarkers of terpanes, hopanes, and steranes) was performed. PHC analysis showed that n-alkanes in lake sediments from all three regions were highly similar and predominately biogenic, while PAC composition was significantly different in each region. Restricted-drainage lakes of the Athabasca Delta had the highest concentrations of PACs from petrogenic sources. Closed-drainage lakes in the Peace Delta had lower concentrations of PACs that likely originated from a mixture of pyrogenic and petrogenic sources. Closed-drainage lakes in the boreal upland region had the lowest concentrations of PACs likely sourced from pyrogenic wood combustion with traces of petrogenic PACs, possibly from atmospheric deposition of dust. Petroleum biomarkers of terpanes, hopanes, and steranes were successfully used to identify the long-range fluvial, and possibly atmospheric, transport of bituminous compounds more than one hundred kilometers from their potential source. This validates the future use of these biomarkers in environmental forensics. Microbial communities in all three regions under study were highly diverse, and their composition was significantly different in both sediment and water. Targeted gene analysis identified a total of 3885 genes involved in the degradation of n-alkanes and PACs in sediment and water. The results show that organic carbon, nitrogen, and sulfur content, as well as PAC and short-chain alkane concentrations were important chemical predictors of change in degradation gene composition. Furthermore, genes for anaerobic degradation of PHCs were identified in syntrophic bacteria, methanogens, nitrate and sulfate reducers, demonstrating the potential for syntrophic hydrocarbon degradation in PAD lakes. Though this thesis confirms the genetic potential for hydrocarbon degradation in PAD and boreal upland lakes, further research is necessary to determine whether these microbial communities can actively degrade the PHCs present in these lakes.
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Trifilieff, Sylvie. "Etude de la structure des fractions polaires de petroles (resines et asphaltenes) par degradations chimiques selectives." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13026.

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Oxydation des asphaltenes de quatre petroles lourds avec du tetroxyde de ruthenium et identification des molecules d'acides formees par spectrometrie de masse. L'etude de la ou des fonction(s) acide(s) sur chaque produit, associee a une experience de simulation de maturation sur argile, a conduit a proposer un mecanisme d'incorporation de ces molecules dans les asphaltenes. Il s'agirait de reactions de type fridel-crafts, catalysees par la matrice minerale. L'etude de la structure des resines a ete etudiee par hydrogenolyse avec du nickel de raney et les molecules formees par chromatographie en phase gazeuse couplee a de la spectrometrie de masse
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Le, Thi Nhi Cong, Thi Ngoc Mai Cung, Thi Thanh Vu, Ngoc Minh Nghiem, Phuong Ha Hoang, Thi Lien Do, and Thi To Uyen Do. "Pyrene degradation of biofilm-forming Paracoccus sp. DG25 isolated from oil polluted samples collected in petroleum storage Duc Giang, Hanoi." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190617.

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In this study, a well biofilm-forming bacterial strain was isolated from oil contaminated water and sediment samples collected in petroleum storage Duc Giang, Hanoi. It was identified as Paracoccus sp. DG25 and registered in the GenBank database with the accession numbers KJ608354. Several biophysical and bio-chemical conditions for the biofilm formation of the strain were estimated such as pH, temperature, carbon sources and nitrogen sources. As the results the biofilm forming capacity was highest at pH 7, 37 oC, on maltose and supplemented with KNO3. Using these optimal conditions, the formed biofilm degraded 76.07 % of pyrene after 7 day-incubation, with the initial concentration of 300 ppm by high-performance liquid chromatography (HPLC) analysis. To our knowledge, there is rare publication on pyrene degradation by biofilm-forming bacteria. Therefore, the obtained results show that biofilm formed the strain Paracoccus sp. DG25 may considerably increase the degrading efficiency of pyrene and may lead to a new approach to treat polycyclic aromatic hydrocarbons containing in petroleum oil contaminated water in Vietnam
Trong nghiên cứu này, từ các mẫu đất và nước nhiễm dầu lấy tại kho xăng Đức Giang, Hà Nội, chúng tôi đã phân lập được chủng vi khuẩn có khả năng tạo màng sinh học tốt. Chủng vi khuẩn này đã được phân loại và định tên là Paracoccus sp. DG25 với số đăng ký trên ngân hàng Gen là KJ608354. Chúng tôi cũng đã nghiên cứu một số điều kiện hóa lý ảnh hưởng tới khả năng hình thành màng sinh học như pH, nhiệt độ, nguồn Carbon và nguồn Nitơ. Kết quả cho thấy, chủng DG25 có khả năng tạo màng tốt nhất ở các điều kiện pH 7, 37 oC, nguồn Carbon là maltose và nguồn Nitơ là KNO3. Sử dụng các điều kiện tối ưu này để tạo màng và đánh giá khả năng phân hủy pyrene của màng tạo thành. Bằng phương pháp sắc ký lỏng cao áp, chúng tôi đã đánh giá được hàm lượng pyrene bị phân hủy sau 7 ngày nuôi tĩnh bởi màng sinh học của chủng DG25 lên tới 76,07 % với nồng độ ban đầu là 300 ppm. Cho tới nay, chưa có nhiều công bố về hiệu quả phân hủy pyrene của các chủng vi khuẩn tạo màng sinh học. Do vậy, kết quả đạt được này mở ra khả năng sử dụng màng tạo thành bởi chủng DG25 để nâng cao hiệu quả phân hủy pyren và có thể mở ra phương pháp mới nhằm xử lý các hợp chất hydrocarbon thơm có trong nước ô nhiễm dầu ở Việt Nam
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Caivano, Antonio. "The impact of nutrients on microbial Hydrocarbon degradation at deep-sea Temperature and Hydrostatic Pressure." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Currently available physical and chemical remediation technologies are not effective in the deep sea, where ultimate fate of oil is strongly dependent on degradation by microorganisms. In order to setup an efficient bioremediation strategy, the effect of the environmental constraints on oil degrading communities’ metabolism needs to be assessed. In this work, natural surface seawater communities were incubated under different T, P and in different dilutions of the medium ONR7a. Then, after 1 day, 1 week and 3 weeks, cell number, SO4, NH4 and DIC concentration were assessed. When only one environmental stress (low T or high HP) is applied, a positive effect of nutrients’ concentration is highlighted, with increased growth rates and DIC production; at 23 °C and 20 MPa, a lower cell growth is observed with respect to atmospheric pressure samples, but a relatively high value of oil degradation is mostly sustained by respiration to DIC: this result evidence the possibility to setup an effective biostimulation strategy in deep seas characterized by milder temperatures (Sulu, Mediterranean, Red Sea). High Ammonium concentrations are needed to sustain large production of proteins for cell maintenance process required for adaptation to HP. Moreover, at 23 °C and 20 MPa, significant Sulphate uptake occurs, whose role in HP adaptation needs to be clarified. Also at low T and atmospheric pressure oil biodegradation mostly relies on respiration to DIC, however biodegradation rates seems to be more affected by T reduction than HP increase. When both low T and high HP are applied, cellular metabolism is still active but any growth is observed, drastically reducing the oil biodegradation, that relies only on respiration to DIC. Surface communities subject to combination of 2 stresses may need more than 3 weeks to adapt to the deep sea environment and start a growth phase.
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Books on the topic "Petroleum degradation"

1

Deppe, Uta. Degradation of crude oil at low temperatures by a newly isolated psychrotolerant bacterial consortium. Berlin: Mensch & Buch Verlag, 2003.

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Almeida, Alexandra. Tigre, águila y waorani, una sola selva, una sola lucha: Deuda ecológica de las transnacionales petroleras con el pueblo waorani y el Parque Nacional Yasuní. Quito: Acción Ecológica, 2008.

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Yasuní: El tortuoso camino de Kioto a Quito. Quito: Abya Yala, Universidad Politécnica Salesiana, 2009.

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Shell Petroleum Development Company, the state and underdevelopment of Nigeria's Niger Delta: A study in environmental degradation / Daniel A. Omoweh. Trenton, NJ: Africa World Press, 2001.

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J, Reidy Patrick, and Levy Benjamin, eds. Mobility and degradation of organic contaminants in subsurface environments. Chelsea, Mich: C.K. Smoley, 1992.

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La maldición de la abundancia. Quito, Ecuador: Abya-Yala, 2009.

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Doherty, Faith. Burma: Human lives for natural resources, oil & natural gas. [Bangkok?: Southeast Asian Information Network and All Burma Students' Democratic Front, 1994.

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Thorpe, J. W. Microbial degradation of hydrocarbon mixtures in a marine sediment under different temperature regimes. Ottawa: Published under auspices of Environmental Studies Research Funds [by] Nova Scotia Research Foundation Corporation, 1987.

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Aristeus, Syprianus. Penerapan sanksi pidana dalam Undang-Undang Nomor 32 Tahun 2009 Tentang Lingkungan Hidup terhadap pelanggaran baku mutu lingkungan dari limbah kegiatan operasi produksi migas. Jakarta: Badan Pembinaan Hukum Nasional, Kementerian Hukum dan Hak Asasi Manusia RI, 2012.

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Oil in the soil: The politics of paying to preserve the Amazon. Lanham, MD: Rowman & Littlefield Publishers, Inc., 2011.

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Book chapters on the topic "Petroleum degradation"

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Morgan, Philip, and Robert J. Watkinson. "Biodegradation of components of petroleum." In Biochemistry of microbial degradation, 1–31. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1687-9_1.

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Tyagi, R. D. "Biological Treatment of Petroleum Refinery Wastewater." In Biological Degradation of Wastes, 323–40. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3664-8_15.

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Mahmoud, Ghada Abd-Elmonsef, and Magdy Mohmed Khalil Bagy. "Microbial Degradation of Petroleum Hydrocarbons." In Microbial Action on Hydrocarbons, 299–320. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1840-5_12.

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Head, I. M., S. R. Larter, N. D. Gray, A. Sherry, J. J. Adams, C. M. Aitken, D. M. Jones, A. K. Rowan, H. Huang, and W. F. M. Röling. "Hydrocarbon Degradation in Petroleum Reservoirs." In Handbook of Hydrocarbon and Lipid Microbiology, 3097–109. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-77587-4_232.

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Rajasekar, A., S. Maruthamuthu, Y. P. Ting, R. Balasubramanian, and Pattanathu K. S. M. Rahman. "Bacterial Degradation of Petroleum Hydrocarbons." In Environmental Science and Engineering, 339–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23789-8_13.

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Deborah Gnana Selvam, A., and A. Joseph Thatheyus. "Microbial Degradation of Petroleum Hydrocarbons: An Overview." In Microbial Action on Hydrocarbons, 485–503. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1840-5_19.

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Rosenberg, E., T. Barkay, S. Navon-Venezia, and E. Z. Ron. "Role of Acinetobacter Bioemulsans in Petroleum Degradation." In Novel Approaches for Bioremediation of Organic Pollution, 171–80. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4749-5_17.

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Hara, Eri, and Hiroo Uchiyama. "Degradation of Petroleum Pollutant Materials by Fungi." In Soil Biology, 117–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33811-3_5.

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Claro, Elis Marina Turini, Jaqueline Matos Cruz, Renato Nallin Montagnolli, Paulo Renato Matos Lopes, José Rubens Moraes Júnior, and Ederio Dino Bidoia. "Microbial Degradation of Petroleum Hydrocarbons: Technology and Mechanism." In Microbial Action on Hydrocarbons, 125–41. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1840-5_6.

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Püttmann, W. "Microbial Degradation of Petroleum in Contaminated Soil — Analytical Aspects." In Contaminated Soil ’88, 189–99. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2807-7_28.

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Conference papers on the topic "Petroleum degradation"

1

Al-Mohammed, A. M., H. A. Nasr-El-Din, O. A. Al-Fuwaires, and A. D. Al-Aamri. "Degradation of High pH Borate Gels." In IPTC 2007: International Petroleum Technology Conference. European Association of Geoscientists & Engineers, 2007. http://dx.doi.org/10.3997/2214-4609-pdb.147.iptc11585.

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Schlobohm, J. "Controlling Equipment Failures Caused by Petroleum-Based Fluid Degradation." In AISTech2019. AIST, 2019. http://dx.doi.org/10.33313/377/287.

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Al-Yami, Abdullah, Vikrant Wagle, Walmy Cuello Jimenez, and Paul Jones. "Thermal Degradation Kinetics of Epoxy Resins and Their Drilling Application." In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/192863-ms.

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Sun, Ningning, Hongqi Wang, Jingqi Liu, and Yongqiang Qi. "Study of Petroleum Hydrocarbons under Chemical-Biological Degradation in Contaminated Soils." In 2009 International Conference on Environmental Science and Information Application Technology, ESIAT. IEEE, 2009. http://dx.doi.org/10.1109/esiat.2009.113.

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Onaizi, Sagheer A. "Enzymatic Treatment of Phenolic Wastewater: Effects of Salinity and Biosurfactant Addition." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21349-ms.

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Abstract Water contaminated with phenols is produced from several oil and gas related industries. Although there are a number of treatment methods, enzymatic wastewater treatment is more attractive due to its sustainability, environmental-friendliness, and mild nature. A key limitation of this process, however, is the enzymatic deactivation (whether complete or partial) during the treatment process. This limitation might be addressed to a certain extent through the addition of biosurfactants to the reaction medium. Thus, the key aim of this study is to utilize laccase (an oxidoreductase enzyme from Trametes versicolor) to remove bisphenol A (BPA) from wastewaters in the presence of rhamnolipid biosurfactant. Since most wastewaters contain inorganic salts, the efficacy of enzymatic treatment of high saline wastewaters has been evaluated. The beneficial effect of the biosurfactant addition during the enzymatic treatment of highly saline phenolic wastewater has been also assessed. Additionally, the effect of increasing the biocatalyst and the phenolic pollutant concentrations have been also probed. The results showed that the BPA degradation rate increases with increasing the enzyme concentration. The extent of BPA removal also increased with increasing the biocatalyst concentration, approaching almost a complete removal at an enzyme concentration of 400 ppm. The BPA degradation rate also increased almost linearly with increasing its initial concentration; however, its removal extent showed the opposite trend. The addition of as low as 1 ppm rhamnolipid biosurfactant to the reaction medium increased both the BPA degradation rate and the removal extent relative to the biosurfactant-free wastewater samples. The addition of the biosurfactant to the reaction medium boosted the BPA degradation rate and the removal extent by 1.1- to 1.23-fold. The highest BPA degradation rate and removal enhancement (about 23% higher than those in the absence of the biosurfactant) was obtained for BPA-rhamnolipid mass ratio of 50:1. The presence of salt severely reduced the BPA degradation rate and removal. The addition of 20 mM NaCl resulted in about 1.7-fold drop in the BPA degradation rate and removal. The drop in the BPA degradation rate and removal reached more than 3.6-fold at 500 mM NaCl. The addition of 1 ppm rhamnolipid partially compensated the negative effect of salinity, providing relatively higher BPA degradation rate and removal at all examined salinity levels. The findings reported herein reveal the positive effect of biosurfactant addition to the enzymatic reaction medium and the need for the salt removal prior to subjecting the saline wastewaters to enzymatic treatment.
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Singh, Sanjay Lallan, Ukkirapandian Veerakumar, and Ahmed Abbas. "Control of Contaminates & Degradation Products in Amines During Sour Gas Treatment." In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/182984-ms.

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Zhu, Haiwen, Jianjun Zhu, Zulin Zhou, Risa Rutter, Michael Forsberg, Shawn Gunter, and Hong-Quan Zhang. "Experimental Study of Sand Erosion in Multistage Electrical Submersible Pump ESP: Performance Degradation, Wear and Vibration." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2019. http://dx.doi.org/10.2523/iptc-19264-ms.

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Sugai, Yuichi, Keita Komatsu, Kyuro Sasaki, Kristian Mogensen, and Martin Vad Bennetzen. "Microbial-Induced Oil Viscosity Reduction by Selective Degradation of Long-Chain Alkanes." In Abu Dhabi International Petroleum Exhibition and Conference. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/171850-ms.

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Nasr-El-Din, Hisham A., Abdullah Mohammed Al-Mohammed, Omar A. Al-Fuwaires, and Ali Al-Aamri. "A Study of Gel Degradation, Surface Tension and their Impact on the Productivity of Hydraulically Fractured Gas Wells." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2007. http://dx.doi.org/10.2523/11585-ms.

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Nasr-El-Din, Hisham A., Abdullah Mohammed Al-Mohammed, Omar A. Al-Fuwaires, and Ali Al-Aamri. "A Study of Gel Degradation, Surface Tension and their Impact on the Productivity of Hydraulically Fractured Gas Wells." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2007. http://dx.doi.org/10.2523/iptc-11585-ms.

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Reports on the topic "Petroleum degradation"

1

Jackson, Lorri. Degradation of Total Petroleum Hydrocarbon and BTEX Compounds in Produced Water. Office of Scientific and Technical Information (OSTI), April 2002. http://dx.doi.org/10.2172/793411.

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Apitz, Sabine E. Fate of Complex Aromatic Petroleum Hydrocarbons in Marine Sediments: Biological Transformation, Degradation and Sequestration. Fort Belvoir, VA: Defense Technical Information Center, April 2002. http://dx.doi.org/10.21236/ada401427.

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