ADSORPTION OF POLYCHLORINATED BIPHENYL ONTO SEA BED SEDIMENT, MARINE PLANKTON, AND OTHER ADSORBING AGENTS

被引：55

作者：

HIRAIZUMI, Y

TAKAHASHI, M

NISHIMURA, H

机构：

[1] Department of Chemical Engineering, The Faculty of Engineering, University of Tokyo, Bunkyo-ku

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1979年 / 13卷 / 05期

关键词：

D O I：

10.1021/es60153a015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Adsorption of PCB onto sea bed sediment, sand, and previously dehydrated samples of plankton and other adsorbing agents was experimentally examined and compared with the results of field observations. Samples of zooplankton and phytoplankton were observed to reach their maximum PCB adsorption capacity within 100 to 200 min. However, the de-sorption rate was very slow. Batch studies, as well as field observations, indicate that PCB adsorption of various adsorbing agents correlates well with the PCB concentration in brine, and could be described by a Freundlich isotherm. The PCB concentration factors of the adsorbents were found to be inversely related to their average particle size and linearly related to their specific surface area for adsorbents of the same constituent. However, the organic content of the adsorbent also appeared to influence the PCB concentration factor. © 1979, American Chemical Society. All rights reserved.

引用

页码：580 / 584

页数：5

共 14 条

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