Can adsorption isotherms predict sediment bioavailability?

被引：38

作者：

Lawrence, MAM ^{[1
]}

Davies, NA ^{[1
]}

Edwards, PA ^{[1
]}

Taylor, MG ^{[1
]}

Simkiss, K ^{[1
]}

机构：

[1] Univ Reading, Sch Anim & Microbial Sci, Reading RG6 2AJ, Berks, England

来源：

CHEMOSPHERE | 2000年 / 41卷 / 07期

基金：

英国自然环境研究理事会;

关键词：

adsorption; desorption; isotherms; 2,4-dichlorophenol; pentachlorophenol; bioaccumulation; Lumbrichus variegatus;

D O I：

10.1016/S0045-6535(99)00559-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The adsorption and desorption of 2,4-dichlorophenol (DCP) and pentachlorophenol (PCP) were studied for a range of synthetic particles, a dimethylditallowammonium exchanged clay and a natural sediment. The synthetic particles were Dowex 1X8400, Toyopearl Phenyl 650M and Toyopearl SP 650M. The bioaccumulation of the DCP and PCP from these particles was then studied using the oligochaete, Lumbriculus variegatus. There is a correlation between contaminant-particle interactions, as determined from adsorption and desorption isotherms, and bioaccumulation. Bioaccumulation by L. variegatus was found to be highest from the systems where differences in the classification of adsorption and desorption isotherms were observed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1091 / 1100

页数：10

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