Degradation of toxaphene in water during anaerobic and aerobic conditions

被引：12

作者：

LacayoR, M

van Bavel, B

Mattiasson, B

机构：

[1] Lund Univ, Dept Biotechnol, Ctr Chem & Chem Engn, SE-22100 Lund, Sweden

[2] Univ Nacl Autonoma Nicaragua, CIRA, Managua, Nicaragua

[3] Orebro Univ, MTM Res Ctr, S-70182 Orebro, Sweden

来源：

ENVIRONMENTAL POLLUTION | 2004年 / 130卷 / 03期

关键词：

anaerobic; aerobic; bioremediation; toxaphene; water;

D O I：

10.1016/j.envpol.2003.12.020

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of technical toxaphene in water with two kinds of bioreactors operating in sequence was studied. One packed bed reactor was filled with Poraver(R) (foam glass particles) running at anaerobic conditions and one suspended carrier biofilm reactor working aerobically. Chemical oxygen demand (COD), chloride, sulphate, pH, dissolved oxygen, total toxaphene and specific toxaphene isomers were measured. After 6 weeks approx. 87% of the total toxaphene was degraded reaching 98% by week 39. The majority of the conversion took place in the anaerobic reactor. The concentrations of toxaphene isomers with more chlorine substituents decreased more rapidly than for isomers with less chlorine substituents. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：437 / 443

页数：7

共 16 条

[1]

*APHA AWWA WPCF, 1999, STAND METH EX WAT WA

[2] PREPARATION AND STRUCTURE OF HIGH-CHLORINATED BORNANE DERIVATIVES FOR THE QUANTIFICATION OF TOXAPHENE RESIDUES IN ENVIRONMENTAL-SAMPLES [J].