天然水中细菌胞外聚合物对重金属的吸附规律

The Adsorption of Heavy Metals on Extracellular Polymers of Bacteria in Natural Water

DONG De-ming, KANG Chun-li, LI Zhong-hua, BI Xiao-hui, GUO Ping

College of Environment and Resources, Jilin University, Changchun 130023, China

Received:2002-08-23 Revised:1900-01-01 Online:2003-01-26 Published:2003-01-26
Contact: DONG De-ming

Abstract

Abstract: The adsorption of three kinds of heavy metals Mn, Cd and Pb by extracellular polymers was investigated. The extracellular polymers were obtained from superiority bacteria in Changchun South Lake. The results show that both the Langmuir and the Freundlich isotherm equations could describe the course of the adsorption of the three metals on the extracellular polymers. The existence of Mn in extracellular polymers affected the adsorption of Pb more seriously than that of Cd.

Key words: extracellular polymers, adsorption, heavy metal

CLC Number:

X132

DONG De-ming, KANG Chun-li, LI Zhong-hua, BI Xiao-hui, GUO Ping. The Adsorption of Heavy Metals on Extracellular Polymers of Bacteria in Natural Water[J].J4, 2003, 41(01): 94-96.

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The Adsorption of Heavy Metals on Extracellular Polymers of Bacteria in Natural Water

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