Sequential anaerobic-aerobic degradation of indigenous PCBs in a contaminated soil matrix

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Description

Many industrial locations, including the US Department of Energy`s, have identified needs for treatment of polychlorinated biphenyl (PCB) wastes and remediation of PCB-contaminated sites. Biodegradation of PCBs is a potentially effective technology for the treatment of PCB-contaminated soils and sludges; however, a practicable remediation technology has not yet been demonstrated. A biological treatment technology is likely to consist of an anaerobic fermentation step in which PCB dechlorination takes place producing PCBs with fewer chlorines. These products are then more susceptible to aerobic mineralization. In laboratory experiments, soil slurry bioreactors inoculated with microorganisms extracted from PCB-contaminated sediments from the Hudson River ... continued below

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10 p.

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Klasson, K.T.; Reeves, M.E.; Evans, B.S. & Dudley, C.A. December 31, 1994.

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Description

Many industrial locations, including the US Department of Energy`s, have identified needs for treatment of polychlorinated biphenyl (PCB) wastes and remediation of PCB-contaminated sites. Biodegradation of PCBs is a potentially effective technology for the treatment of PCB-contaminated soils and sludges; however, a practicable remediation technology has not yet been demonstrated. A biological treatment technology is likely to consist of an anaerobic fermentation step in which PCB dechlorination takes place producing PCBs with fewer chlorines. These products are then more susceptible to aerobic mineralization. In laboratory experiments, soil slurry bioreactors inoculated with microorganisms extracted from PCB-contaminated sediments from the Hudson River and Woods Pond have been used to obtain anaerobic dechlorination of PCBs in soil slurry reactors. The anaerobic dechlorination was followed by qualitative estimation of the effect of aerobic fermentation of the dechlorination products based on literature data. The sequential anaerobic-(simulated) aerobic treatment constituted an improvement compared anaerobic treatment alone.

Physical Description

10 p.

Notes

OSTI as DE95008678

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  • IGT symposium on gas, oil, and environmental biotechnology, Colorado Springs, CO (United States), 12-14 Dec 1994

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  • Other: DE95008678
  • Report No.: CONF-941245--2
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/34365 | External Link
  • Office of Scientific & Technical Information Report Number: 34365
  • Archival Resource Key: ark:/67531/metadc688826

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 31, 1994

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Jan. 22, 2016, 8:25 p.m.

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Klasson, K.T.; Reeves, M.E.; Evans, B.S. & Dudley, C.A. Sequential anaerobic-aerobic degradation of indigenous PCBs in a contaminated soil matrix, report, December 31, 1994; Tennessee. (digital.library.unt.edu/ark:/67531/metadc688826/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.