| Literature DB >> 12835060 |
Guven Ozdemir1, Tansel Ozturk, Nur Ceyhan, Rahim Isler, Tamer Cosar.
Abstract
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.Entities:
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Year: 2003 PMID： 12835060 DOI： 10.1016/s0960-8524(03)00088-9
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642