Heavy metal biosorption by biomass of Ochrobactrum anthropi producing exopolysaccharide in activated sludge

被引：189

作者：

Ozdemir, G ^{[1
]}

Ozturk, T

Ceyhan, N

Isler, R

Cosar, T

机构：

[1] Ege Univ, Dept Biol, Fac Sci, TR-35100 Izmir, Turkey

[2] Mugla Univ, Dept Biol, Fac Sci, Mugla, Turkey

[3] Petkim Petrokimya Holding AS, Qual Control & Tech Serv Dept, Izmir, Turkey

来源：

BIORESOURCE TECHNOLOGY | 2003年 / 90卷 / 01期

关键词：

waste water treatment; Ochrobactrum anthropi; biosorption; chromium; cadmium; copper;

D O I：

10.1016/S0960-8524(03)00088-9

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The removal of chromium, cadmium and copper, toxic metals of high environmental priority due to their toxicity, from dilute aqueous solutions has been studied in the present work, applying a dead exopolysaccharide producing bacterium, Ochrobactrum anthropi, isolated from activated sludge. Particularly, the effect of pH, metal concentration and the effects of contact time were considered. Optimum adsorption pH values of chromium(VI), cadmium(II) and copper(II) were 2.0, 8.0 and 3.0 respectively. Experimental results also showed the influence of initial metal concentration on the metal uptake for dried biomass. Both the Freundlich and Langmuir adsorption models were suitable for describing the short-term biosorption of chromium(VI), cadmium(II) and copper(II) by O. anthropi. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：71 / 74

页数：4

共 14 条

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