Biosorption of lead (II) from aqueous solution by a bacterial dead Streptomyces rimosus biomass

被引:198
作者
Selatnia, A [1 ]
Boukazoula, A [1 ]
Kechid, N [1 ]
Bakhti, MZ [1 ]
Chergui, A [1 ]
Kerchich, Y [1 ]
机构
[1] Ecole Nat Polytech Alger, Dept Genie Chim, El Harrach, Alger, Algeria
关键词
biosorption; lead; Streptomyces rimosus; waste-water treatments; filamentous bacteria; batch processing;
D O I
10.1016/j.bej.2003.12.007
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The lead biosorption capacity of a Streptomyces rimosus biomass treated with NaOH (0.1 M) was studied in the batch mode. After pretreatment of biomass at the ambient temperature, optimum conditions of biosorption were found to be: a biomass particle size between 50 and 160 mum, an average contact time of 3 h, a biomass concentration of 3 g/l and a stirring speed of 250 rpm. The equilibrium data could be fitted by Langmuir isotherm equation. Under these optimal conditions, 135 mg Pb2+/g biomass was obtained. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:127 / 135
页数:9
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