Studies on Pb2+ and Cd2+ Adsorption by Extracellular Protein of Natural Biofilm

Chem. J. Chinese Universities

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Studies on Pb²⁺and Cd²⁺Adsorption by Extracellular Protein of Natural Biofilm

KANG Chun-Li; SU Chun-Yan; GUO Ping; ZHAO Yu-Xia; DONG De-Ming*

College of Environment and Resources, Jilin University, Changchun 130021, China

Received:2005-09-13 Revised:1900-01-01 Online:2006-07-10 Published:2006-07-10
Contact: DONG De-Ming

Abstract

Abstract: The adsorption of Pb²⁺and Cd²⁺on the extracellular protein of natural biofilm was investigated. The extracellular protein was obtained from the extracellular polymers of superiority bacteria of natural biofilm cultivated in South Lake of Changchun. The results showed that both Langmuir and Freundlich isotherm equations could be used to describe the thermodynamics adsorption processes of Pb²⁺ and Cd²⁺on the extracellular protein.

Key words: Biofilm, Extracellular protein, Adsorption, Pb²⁺, Cd²⁺

CLC Number:

O657.4

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KANG Chun-Li; SU Chun-Yan; GUO Ping; ZHAO Yu-Xia; DONG De-Ming*. Studies on Pb²⁺and Cd²⁺Adsorption by Extracellular Protein of Natural Biofilm[J]. Chem. J. Chinese Universities, doi: .

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Studies on Pb²⁺and Cd²⁺Adsorption by Extracellular Protein of Natural Biofilm

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