A study on the biosorption of lindane

被引：25

作者：

Ju, YH ^{[1
]}

Chen, TC ^{[1
]}

Liu, JC ^{[1
]}

机构：

[1] NATL TAIWAN INST TECHNOL,DEPT CHEM ENGN,TAIPEI 10772,TAIWAN

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 1997年 / 9卷 / 3-4期

关键词：

photoimageable polymer; polymeric amine; photogeneration; quantum yield;

D O I：

10.1016/S0927-7765(97)00019-2

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Equilibrium adsorption of lindane by Gram negative bacteria (Escherichia coli, Zoogloea ramigera) and Gram positive bacteria (Bacillus megaterium, Bacillus subtilis) was investigated. Adsorption isotherms can be interpreted in terms of the Freundlich model. Lindane biosorption by all four bacteria increases as ionic strength increases. Higher bioconcentration factor (BCF) under lower pH was observed. No general trend of the temperature effect on biosorption was found. Zeta potentials of bacteria at pH 7 were measured and correlated with lindane adsorption. The cell wall was treated with ethylenediaminetetraacetic acid (EDTA) and its effect on the biosorption of lindane was investigated. A bacterial adherence to hydrocarbon (BATH)(%) test was also conducted to measure the relative hydrophobicity of bacteria. It is proposed that both van der Waals forces and hydrophobic interaction contribute to the biosorption reaction. (C) 1997 Elsevier Science B.V.

引用

页码：187 / 196

页数：10

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