Reduction of CR(VI) by Desulfovibrio vulgaris and Microbacterium sp.

Humphries, A. and Macaskie, L.E. (2002) Reduction of CR(VI) by Desulfovibrio vulgaris and Microbacterium sp. Biotechnology Letters, 24 (15). pp. 1261-1267.

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Abstract

Many industrial wastes contain Cr(VI), a carcinogen and mutagen, the toxicity of which can be ameliorated by reduction to Cr(III). Microbacterium sp. NCIMB 13776 andDesulfovibrio vulgaris NCIMB 8303 reduced Cr(VI) to Cr(III) anoxically using 25 mM sodium citrate buffer (pH 7), with 25 mM sodium acetate and 25 mM sodium formate as electron donors at 30 °C, under which conditions the rates of reduction of 500 μM sodium chromate were 77 and 6 nmol h−1 mg dry cell wt for D. vulgaris and Microbacterium sp., respectively, these being increased to 127 and 17 nmol h−1 mg dry cell wt in the presence of 20 mM MOPS/NaOH buffer.

Item Type: Article
Divisions: Crop and Environment Sciences
Depositing User: Mr Darren Roberts
Date Deposited: 07 Nov 2018 12:04
Last Modified: 29 Nov 2018 14:19
URI: http://hau.repository.guildhe.ac.uk/id/eprint/16374

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