Development of a Computer Model for Prediction of PCB Degradation Endpoints

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Several researchers have demonstrated the transformation if polychlorinated biphenyls (PCBs) by both aerobic and anaerobic bacteria. This transformation, or conversion, is characteristic and often dependent on PCB congener structure and in addition, dictates the products or endpoints. Since transformation is linked to microbial activities, bioremediation has been hailed as a possible solution for PCB-contaminated soils and sediments, and several demonstration activities have verified laboratory results. This paper presents results from mathematical modeling of PCB transformation as a means of predicting possible endpoints of bioremediation. Since transformation can be influenced by both starting composition of the PCBs and microbial activity, this ... continued below

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9 p.

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Just, E.M. & Klasson, T. December 7, 1999.

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Description

Several researchers have demonstrated the transformation if polychlorinated biphenyls (PCBs) by both aerobic and anaerobic bacteria. This transformation, or conversion, is characteristic and often dependent on PCB congener structure and in addition, dictates the products or endpoints. Since transformation is linked to microbial activities, bioremediation has been hailed as a possible solution for PCB-contaminated soils and sediments, and several demonstration activities have verified laboratory results. This paper presents results from mathematical modeling of PCB transformation as a means of predicting possible endpoints of bioremediation. Since transformation can be influenced by both starting composition of the PCBs and microbial activity, this paper systematically evaluates several of the most common transformation patterns. The predicted data are also compared with experimental results. For example, the correlation between laboratory-observed and predicted endpoint data was, in some cases, as good as 0.98 (perfect correlation = 1.0). In addition to predicting chemical endpoints, the possible human effects of the PCBs are discussed through the use of documented dioxin-like toxicity and accumulation in humans before and after transformation.

Physical Description

9 p.

Notes

OSTI as DE00002931

Medium: P; Size: 9 pages

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  • IGT's 11th International Symposium on Environmental Biotechnologies and Site Remediation Technologies, Orlando, FL (US), 12/07/1999

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  • Report No.: ORNL/CP-100313
  • Report No.: AC 10 15 00 0
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 2931
  • Archival Resource Key: ark:/67531/metadc688394

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 7, 1999

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  • July 25, 2015, 2:20 a.m.

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  • April 11, 2017, 7:34 p.m.

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Just, E.M. & Klasson, T. Development of a Computer Model for Prediction of PCB Degradation Endpoints, article, December 7, 1999; Tennessee. (digital.library.unt.edu/ark:/67531/metadc688394/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.