Microbial mineralization of VC and DCE under different terminal electron accepting conditions

被引:63
作者
Bradley, PM [1 ]
Chapelle, FH [1 ]
机构
[1] US Geol Survey, Columbia, SC 29210 USA
关键词
D O I
10.1006/anae.1998.0150
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Production of (CO2)-C-14 from [1,2-C-14] dichloroethene (DCE) or [1,2-C-14] vinyl chloride (VC) was quantified in aquifer and stream-bed sediment microcosms to evaluate the potential for microbial mineralization as a pathway for DCE and VC biodegradation under aerobic, Fe(III)-reducing, SO4-reducing, and methanogenic conditions. Mineralization of [1,2-C-14] DCE and [1,2-C-14] VC to (CO2)-C-14 decreased under increasingly reducing conditions, but significant mineralization was observed for both sediments even under anaerobic conditions. VC mineralization decreased in the order of aerobic > Fe(III)-reducing > SO4-reducing > methanogenic conditions. For both sediments, VC mineralization was greater than DCE mineralization under all electron-accepting conditions examined. For both sediments, DCE mineralization was at least two times greater under aerobic conditions than under anaerobic conditions. Although significant microbial mineralization of DCE was observed under anaerobic conditions, recovery of (CO2)-C-14 did not differ substantially between anaerobic treatments. (C) 1998 Academic Press.
引用
收藏
页码:81 / 87
页数:7
相关论文
共 46 条
[1]  
Alexander M., 1994, Biodegradation and bioremediation., P196
[2]  
[Anonymous], S NAT ATT CHLOR ORG
[3]  
BARCELONA MJ, 1996, S NAT ATT CHLO ORG G, P98
[4]  
BARRIOLAGE GA, 1987, ENVIRON TOXICOL CHEM, V6, P571, DOI 10.1897/1552-8618(1987)6[571:BOTIAV]2.0.CO
[5]  
2
[6]   COMETABOLIC DEGRADATION OF TCE AND DCE WITHOUT INTERMEDIATE TOXICITY [J].
BIELEFELDT, AR ;
STENSEL, HD ;
STRAND, SE .
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1995, 121 (11) :791-797
[7]  
Borden R. C., 1994, Handbook of bioremediation., P177
[8]  
Bouwer E. J., 1994, Handbook of bioremediation., P149
[9]   Anaerobic mineralization of vinyl chloride in Fe(III)-reducing, aquifer sediments [J].
Bradley, PM ;
Chapelle, FH .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1996, 30 (06) :2084-2086
[10]   BIOTRANSFORMATION OF TETRACHLOROETHYLENE BY ANAEROBIC ATTACHED-FILMS AT LOW-TEMPERATURES [J].
CARTER, SR ;
JEWELL, WJ .
WATER RESEARCH, 1993, 27 (04) :607-615