SACRED - A novel catalytic process for the environmental remediation of polychlorinated biphenyls (PCBS)

被引：14

作者：

Jackman, SA

Knowles, CJ

Robinson, GK

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford Ctr Environm Biotechnol, Oxford OX1 3PJ, England

[2] NERC, Inst Virol & Environm Microbiol, Oxford OX1 3SR, England

[3] Univ Kent, Res Sch Biosci, Canterbury CT2 7NJ, Kent, England

来源：

CHEMOSPHERE | 1999年 / 38卷 / 08期

关键词：

polychlorinated biphenyls; PCBs; reductive dechlorination; samarium diiodide;

D O I：

10.1016/S0045-6535(98)00403-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The catalytic degradation of polychlorinated biphenyls (PCBs) has been studied in aqueous media and contaminated soils. A novel SAmarium Catalyzed REDuctive dechlorination (SACRED) is demonstrated which is able to operate in a short timescale under mild conditions (ambient temperature; inert atmosphere) and with low energy requirements. Samarium (II) iodide, in the presence of hexamethylphosphoramide in tetrahydrofuran, catalyses hydrogenolytic dechlorination of highly chlorinated PCBs, generating biphenyl, mono- and dichlorinated biphenyls from Aroclor 1242. Catalysis is also effective in co-contaminated soils containing various PCBs and in the presence of up to 5 % (w/w) moisture. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1889 / 1900

页数：12

共 22 条

[1] REDUCTIVE DECHLORINATION OF POLYCHLORINATED-BIPHENYLS IN ANAEROBIC SEDIMENTS [J].