TITLE

Evaluation of a deep-sea mesophilic bacteria exopolysaccharides in removal of low concentration Pb(II) from aqueous medium

AUTHOR(S)
Yan Qie; Jing Wang; Weizhi Zhou; Baoyu Gao; Yuzhong Zhang
PUB. DATE
April 2011
SOURCE
Desalination & Water Treatment;Apr2011, Vol. 28 Issue 1-3, p174
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Wangia profunda SM-A87, representative of a new genus of family Flavobacteriaceae, was isolated from deep-sea sediment samples near the southern Okinawa. The exopolysaccharides (EPS) produced by W. profunda SM-A87 was used as an absorbent of Pb(II) from low concentration solution in this paper. The effect of various parameters such as EPS concentration, pH, temperature, contact time, ionic strength and the competitive adsorption of Pb(II), Cu(II), Cd(II) were evaluated in batch technique. The adsorption kinetic and isotherm were also calculated. The preferences biosorption conditions were, EPS dosage at 0.1~0.2 mg/l, pH value at 5.5, temperature at 20~30°C and contact time for 60 min, respectively. Coexistent cations decreased Pb(II) uptake in the order of K+
ACCESSION #
62006756

 

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