Biosorption lead(II) and nikel(II) from an aqueous solution by bacterial biomass

被引：26
|
作者：
Wierzba, Slawomir [1 ]
Latala, Adam [1 ]
机构：
[1] Opole Univ, Chair Biotechnol & Mol Biol, PL-40035 Opole, Poland
来源：
POLISH JOURNAL OF CHEMICAL TECHNOLOGY | 2010年 / 12卷 / 03期
关键词：
biosorption; lead; nikel; Pseudomonas fluorescens; Bacillus pumilus; NICKEL; ADSORPTION; COPPER; IONS; CHROMIUM; CADMIUM; CATIONS; CELLS; ZINC;
D O I：
10.2478/v10026-010-0038-6
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The optimum conditions for biosorption of Pb(II) and Ni(II) from aqueous solution were investigated, by using living and nonliving Pseudomonas fluorescens and Bacillus pumilus isolated from wastewater treatment plant. It was found that the optimum pH for Pb(II) removal by living and nonliving cells was 6.0, while 7.0 for Ni(II) removal. At the optimal conditions, metal ion biosorption was increased as the initial metal concentration increased. The binding capacity by living cells is significantly higher than that of nonliving cells at tested conditions. The maximum biosorption capacities for lead and nickel by using Ps. fluo-rescens and B. pumilus were 77.6, 91.4 and 65.1, 73.9 mg/g, respectively. The results of bio-sorption time and desorption experiments suggested that Pb(II) and Ni(II) uptake by the living bacterial biomass might be enhanced by intracellular accumulation.
引用
收藏
页码：72 / 78
页数：7
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