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Novel chromium tolerant microorganisms: isolation, characterization and their biosorption capacity.

Abstract：

:Effluent from tannery, electroplating and electronic industries contain chromium which is highly toxic. This paper reports isolation of chromium tolerant microorganisms from solid waste as well as liquid effluent of an electroplating industry. Nine isolates were obtained that can tolerate chromium concentration up to 700 mg/L. They reach their stationary phase within 8-12h and can biosorb 95% of initial 200mg/L concentration of chromium within 4-10h. Fourier Transform Infra Red analysis of the biomass exposed to chromium indicates that amino and carboxylate groups in the biomass are involved in biosorption process. 16S RNA results of two most active organisms indicate that they are Bacillus marisflavi and Arthrobacter sp. and they show 98% and 96% homology similarity in the phylogenetic tree, respectively.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Mishra S,Doble M

doi

10.1016/j.ecoenv.2007.12.017

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

874-9

issue

3

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(07)00328-4

journal_volume

71

pub_type

杂志文章

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