HUMIC-ACID REMOVAL FROM WATER BY BIOSORPTION

被引：16
|
作者：
ZHOU, JL [1 ]
BANKS, CJ [1 ]
机构：
[1] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT CHEM ENGN,SIMON ENVIRONM TECHNOL CTR,MANCHESTER M60 1QD,LANCS,ENGLAND
来源：
ENVIRONMENTAL TECHNOLOGY | 1992年 / 13卷 / 08期
关键词：
HUMIC ACID; ADSORPTION; FUNGAL BIOMASS; BIOSORPTION; CHITIN CHITOSAN;
D O I：
10.1080/09593339209385204
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 of humic acid by Rhizopus arrhizus obeyed the Freundlich equation describing heterogeneous surface energy adsorption, and was shown to be pH and biomass concentration dependent. The fungal cell wall chitin/chitosan component had the highest adsorption capacity, followed by cell wall, whole cell then protoplast. The effects of culture age, growth medium composition and biomass pre-treatment with NaOH were assessed in relation to adsorption efficiency and capacity. The presence of metal ions in solution increased humic acid removal by R.arrhizus, this was explained by the role of ions in bridging cell wall surface charge to humic acid surface charge.
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页码：727 / 737
页数：11
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