Isolation of Cr(VI) reducing bacteria from industrial effluents and their potential use in bioremediation of chromium containing wastewater.
作者： Ahmed Zahoor , Abdul Rehman
DOI: 10.1016/S1001-0742(08)62346-3
关键词: Microbiology 、 Chemistry 、 Effluent 、 Zinc 、 Cadmium 、 Staphylococcus capitis 、 Hexavalent chromium 、 Bacteria 、 Nuclear chemistry 、 Bioremediation 、 Chromium
摘要: Abstract The present study was aimed to assess the ability of Bacillus sp. JDM-2-1 and Staphylococcus capitis reduce hexavalent chromium into its trivalent form. could tolerate Cr(VI) (4800 μg/mL) S. (2800 μg/mL). Both organisms were able resist Cd2+ (50 μg/mL), Cu2+ (200 Pb2+ (800 Hg2+ Ni2+ (4000 resisted Zn2+ at 700 μg/mL while only showed resistance up 50 μg/mL. optimum growth pH 6 7, respectively, both bacteria 37°C. 85% 81% from medium after 96 h also capable reducing 86% 89%, industrial effluents 144 h. Cell free extracts reduction 83% 70% concentration 10 μg Cr(VI)/mL, respectively. presence an induced protein having molecular weight around 25 kDa in points out a possible role this reduction. bacterial isolates can be exploited for bioremediation containing wastes, since they seem have potential toxic form nontoxic
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