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Title: Biodegradation of 1,1,1-trichloroethane by a carbon tetrachloride-degrading denitrifying consortium

Abstract

A denitrifying consortium capable of degrading carbon tetrachloride (CT) was shown to also degrade 1,1,1-trichloroethane (TCA). Fed-batch experiments demonstrated that the specific rate of TCA degradation by the consortium was comparable to the specific rate of CT degradation (approximately 0.01 L/gmol/min) and was independent of the limiting nutrient. Although previous work demonstrated that 4--50% of CT transformed by the consortium was converted to chloroform (CF), no reductive dechlorination products were detected during TCA degradation, regardless of the limiting nutrient. The lack of chlorinated TCA degradation products implies that the denitrifying consortium possesses an alternate pathway for the degradation of chlorinated solvents which does not involve reductive dechlorination.

Authors:
;  [1];  [2]
  1. Washington State Univ., Pullman, WA (United States). Chemical Engineering Dept.
  2. Battelle Pacific Northwest National Lab., Richland, WA (United States). Bioprocessing Group
Publication Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
642250
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Journal Article
Journal Name:
Biotechnology and Bioengineering
Additional Journal Information:
Journal Volume: 59; Journal Issue: 4; Other Information: PBD: 20 Aug 1998
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BIODEGRADATION; REMEDIAL ACTION; CHLORINATED ALIPHATIC HYDROCARBONS; DENITRIFICATION; GROUND WATER

Citation Formats

Sherwood, J L, Petersen, J N, and Skeen, R S. Biodegradation of 1,1,1-trichloroethane by a carbon tetrachloride-degrading denitrifying consortium. United States: N. p., 1998. Web. doi:10.1002/(SICI)1097-0290(19980820)59:4<393::AID-BIT1>3.3.CO;2-V.
Sherwood, J L, Petersen, J N, & Skeen, R S. Biodegradation of 1,1,1-trichloroethane by a carbon tetrachloride-degrading denitrifying consortium. United States. https://doi.org/10.1002/(SICI)1097-0290(19980820)59:4<393::AID-BIT1>3.3.CO;2-V
Sherwood, J L, Petersen, J N, and Skeen, R S. 1998. "Biodegradation of 1,1,1-trichloroethane by a carbon tetrachloride-degrading denitrifying consortium". United States. https://doi.org/10.1002/(SICI)1097-0290(19980820)59:4<393::AID-BIT1>3.3.CO;2-V.
@article{osti_642250,
title = {Biodegradation of 1,1,1-trichloroethane by a carbon tetrachloride-degrading denitrifying consortium},
author = {Sherwood, J L and Petersen, J N and Skeen, R S},
abstractNote = {A denitrifying consortium capable of degrading carbon tetrachloride (CT) was shown to also degrade 1,1,1-trichloroethane (TCA). Fed-batch experiments demonstrated that the specific rate of TCA degradation by the consortium was comparable to the specific rate of CT degradation (approximately 0.01 L/gmol/min) and was independent of the limiting nutrient. Although previous work demonstrated that 4--50% of CT transformed by the consortium was converted to chloroform (CF), no reductive dechlorination products were detected during TCA degradation, regardless of the limiting nutrient. The lack of chlorinated TCA degradation products implies that the denitrifying consortium possesses an alternate pathway for the degradation of chlorinated solvents which does not involve reductive dechlorination.},
doi = {10.1002/(SICI)1097-0290(19980820)59:4<393::AID-BIT1>3.3.CO;2-V},
url = {https://www.osti.gov/biblio/642250}, journal = {Biotechnology and Bioengineering},
number = 4,
volume = 59,
place = {United States},
year = {Thu Aug 20 00:00:00 EDT 1998},
month = {Thu Aug 20 00:00:00 EDT 1998}
}