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Biosorption of Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa

Paper ID Volume ID Publish Year Pages File Format Full-Text
4503 229 2007 5 PDF Available
Title
Biosorption of Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa
Abstract

Biosorption of the chromium ions Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa was investigated. Batch experiments were conducted with various initial concentrations of chromium ions to obtain the sorption capacity and isotherms. It was found that the sorption isotherms of P. aeruginosa for Cr(III) were described well by Langmuir isotherm models, while Cr(VI) appeared to fit Freundlich models. The results of FT-IR analysis suggested that the chromium binding sites on the bacterial cell surface were most likely carboxyl and amine groups. The bacterial surface of P. aeruginosa seemed to engage in reductive and adsorptive reactions with respect to Cr(VI) biosorption.

Keywords
Biosorption; Pseudomonas aeruginosa; Chromium; FT-IR spectroscopy; Bioremediation; Wastewater treatment
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Biosorption of Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 36, Issue 1, 15 August 2007, Pages 54–58
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
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Full-text PDF Download
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