Laboratory Evaluations of Factors Affecting Biodegradation of Sulfolane and Diisopropanolamine

Greene, Elizabeth A.; Coy, Debora L.; Fedorak, Phillip M.

doi:10.1080/10889869991219398

Cited by 19 publications

(31 citation statements)

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“…Biodegradation rates of sulfolane in the microcosms was the highest in sample depth 0-0.20 m, decreased with sample depth but significantly increased with the addition of nitrogen, and markedly decreased with temperature. Greene et al [8] reported marked increases in the rates of sulfolane and DIPA biodegradation after P supplementation. The current results clearly demonstrate that the biodegradation of sulfolane by microbial communities in the microcosms is affected by the supply of oxygen, nitrogen, and temperature.…”

Section: Biodegradation Studymentioning

confidence: 97%

“…Greene et al [8] reported a drop of 1 to 1.5 pH units during the biodegradation of sulfolane and DIPA. However, during this study, the pHs of the microcosms were not monitored.…”

Section: Sulfolane Attenuation By Soil and Subsurface Materials 1227mentioning

confidence: 98%

“…Chou and Swatloski [7] reported sulfolane degradation in an activated sludge system. Greene et al [8] also reported aerobic degradation of sulfolane by microbial communities obtained from uncontaminated and contaminated soils. Greene et al [8,9] , Fedorak and Coy [10] demonstrated the aerobic biodegradation of sulfolane in soil and groundwater samples from a sour gas processing plant but little or no degradation under anoxic conditions.…”

Section: Introductionmentioning

confidence: 93%

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Sulfolane Attenuation by Surface and Subsurface Soil Matrices

Saint‐Fort

2006

Journal of Environmental Science and Health, Part A

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This study was undertaken to evaluate sulfolane (tetrahydrothiophene-1, 1-dioxide) attenuation by soil and subsurface materials collected from a sour gas plant site using batch equilibration systems. The analyzed sample materials used in this study showed a wide range in terms of their selected physical and chemical properties. The reaction of sulfolane with the sample materials was fast initially and followed by slower rates at longer times. There was not much increase in the amount of sulfolane sorbed after about 5 hours of equilibration time irrespective of the temperature of the system. The rate of sorption of sulfolane followed a first-order reaction at both 25 and 8 degrees C temperature conditions and not affected by the temperatures range considered in this study. It appears that the sorption data of sulfolane on the various sorbents could be best described mathematically by the Freundlich equation. Kd values derived at 25 degrees C ranged from 0.05 to 0.88 L/kg and from 0.30 to 1.23 L/kg at 8 degrees C. Furthermore, increasing the ionic strength of the solution didn't affect sulfolane sorption by the various sorbents, which indicates that sulfolane sorption is not consistent with an ion-exchange mechanism but rather occurs through dipole-dipole interactions. Desorption of sulfolane was relative high in all systems. Multiple regression analysis shows a high level of correlation between Kd and several soil parameters. No sulfolane biodegradation was detected under anerobic conditions in any of the microcosms systems after 45 days of incubation at 25 and 8 degrees C, respectively. Sulfolane biodegradation data could be all fitted to zero-order kinetics. Biodegradation rates of sulfolane in the microcosms was the highest in sample depth 0-0.20 m, decreased with sample depth but significantly increased with the addition of nitrogen, and markedly decreased with temperature. At 25 degrees C and no supplement of N, biodegradation rate ranged from 4.26 to 12.70 mg/kg/day but with addition of N, the range was from 9.41 to 16.50 mg/kg/day.

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Section: Biodegradation Studymentioning

confidence: 97%

“…Greene et al [8] reported a drop of 1 to 1.5 pH units during the biodegradation of sulfolane and DIPA. However, during this study, the pHs of the microcosms were not monitored.…”

Section: Sulfolane Attenuation By Soil and Subsurface Materials 1227mentioning

confidence: 98%

Section: Introductionmentioning

confidence: 93%

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Sulfolane Attenuation by Surface and Subsurface Soil Matrices

Saint‐Fort

2006

Journal of Environmental Science and Health, Part A

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“…The attenuation of sulfolane in contaminated aquifers will depend on biodegradation or biotransformation. Aerobic sulfolane degradation has been demonstrated in laboratory and field-scale studies (Chou and Swatloski 1984;Greene et al , 1999; however anaerobic sulfolane biodegradation is unlikely to occur in the environment .…”

Section: Introductionmentioning

confidence: 96%

“…Juhl and Clark (1990) developed a series of Escherichia coli mutants with sulfone oxidase activity that was also stimulated by sulfolane; these mutants were able to utilize sulfolane on tetrazolium agar indicator plates. Greene et al ( , 1999 and have reported sulfolane biodegradation by bacterial cultures enriched from sulfolane-contaminated sediments. This paper describes the characteristics of sulfolane biodegradation by two mixed bacterial cultures, and by three pure isolates obtained from the enrichment cultures.…”

Section: Introductionmentioning

confidence: 97%

Sulfolane degradation by mixed cultures and a bacterial isolate identified as a Variovorax sp.

Greene

Beatty

Fedorak

2000

Archives of Microbiology

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Sulfolane (tetrahydrothiophene-1,1-dioxide) is used in the Sulfinol process for natural gas sweetening. At many sour-gas processing plants spills, landfills and leakage from unlined surface storage ponds have contaminated groundwaters with sulfolane. Due to its high water solubility and mobility in aquifers, sulfolane poses a risk for off-site contamination. This study investigated the aerobic biodegradation of sulfolane by two mixed microbial enrichment cultures and by three bacterial isolates. Sulfolane served as the sole C, S and energy source for these cultures. In the two mixed cultures, 60% and 80% of the sulfolane C was recovered as CO2, whereas in cultures of the three isolates only 40-42% of the substrate C was recovered as CO,. In the mixed cultures, 81% and 97% of the sulfolane S was converted to sulfate, and in the pure isolates, 55-90% of the substrate S was converted to sulfate. Thus, the mixed cultures were capable of greater mineralization than the pure isolates. One isolate, strain WP1, was identified using a combination of 16S rRNA gene sequencing, physiological traits and cell morphology. WP1 was determined to be most similar to Varioivorax paradoxus.

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Bioremediation: An Overview of How Microbiological Processes can be Applied to the Cleanup of Organic and Inorganic Environmental Pollutants

Prince

2003

Encyclopedia of Environmental Microbiology

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Bioremediation, Ecology, Technology Organic Contaminants Halogenated Aliphatic Compounds Halogenated Aromatic Compounds Nonchlorinated Pesticides and Herbicides Military Chemicals Other Organic Compounds Inorganic Contaminants Metals and Metalloids

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Laboratory Evaluations of Factors Affecting Biodegradation of Sulfolane and Diisopropanolamine

Cited by 19 publications

References 0 publications

Sulfolane Attenuation by Surface and Subsurface Soil Matrices

Sulfolane Attenuation by Surface and Subsurface Soil Matrices

Sulfolane degradation by mixed cultures and a bacterial isolate identified as a Variovorax sp.

Bioremediation: An Overview of How Microbiological Processes can be Applied to the Cleanup of Organic and Inorganic Environmental Pollutants

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