REDUCTIVE DECHLORINATION OF PCDD/F BY ANAEROBIC CULTURES AND SEDIMENTS

被引：52

作者：

ADRIAENS, P ^{[1
]}

GRBICGALIC, D ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT CIVIL ENGN,STANFORD,CA 94503

来源：

CHEMOSPHERE | 1994年 / 29卷 / 9-11期

关键词：

REDUCTIVE DECHLORINATION; METHANOGENS; ANAEROBIC SEDIMENTS; PERI-DECHLORINATION;

D O I：

10.1016/0045-6535(94)90392-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The fate of highly chlorinated (5 to 7 chlorines per molecule) dibenzo-p-dioxin (PCDD) and dibenzofuran (PCDF) congeners was studied in anaerobic microcosms, using polychlorinated biphenyl (PCB)-contaminated Hudson River sediments, and creosote-contaminated aquifer sediments. The PCDD/PCDF concentrations in active microcosms were shown to decrease at higher rates than in chemical and biological controls. The net loss of PCDD/F from active microcosms was up to 35% higher than in autoclaved controls after extended incubation periods. Lesser chlorinated PCDD/F, identified to be peri-dechlorinated, have been found as the accumulating products resulting from reductive dechlorination under anaerobic methanogenic conditions.

引用

页码：2253 / 2259

页数：7

共 17 条

[1]

ADRIAENS P, 1992, P DECHEMA C SOIL REM

[2]

ADRIAENS P, 1994, UNPUB ENV SCI TECHNO

[3] POLYCHLORINATED BIPHENYL DECHLORINATION IN AQUATIC SEDIMENTS [J].