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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Sep 2015, 36 (5)                                     Back

nstantaneous and historical temperature effects on a-pinene

Optimization of culture parameters for tannery effluent bioremediation by Bacillus galactosidilyticus APBS5-3


Asha Singh and Piyush Malaviya*

Department of Environmental Sciences, University of Jammu, Jammu-180 006, India

*Corresponding Author E-mail:;



Publication Data

Paper received:

01 September 2014


Revised received:

17 November 2014



20 March 2015



Wastewaters produced by tanneries contain high concentration of hexavalent chromium [Cr(VI)] and organic pollutants. In the present work, tannery effluent remediation ability of a chromium resistant Bacillus galactosidilyticus strain APBS5-3, isolated from tannery effluent enriched soil, was evaluated. This strain was found to be resistant up to 800 ppm Cr(VI). Optimization of pH, carbon source, nitrogen source, inoculum concentration, agitation rate and incubation temperature was performed for efficient bioremediation of tannery effluent. Highest reduction of COD and Cr(VI) was found to be 63.1 and 41.8%, respectively and final O.D. (at 600 nm) and pH were found to be 1.222 and 8.54, respectively after 72 hr under optimized conditions.    



 Key words

Bacteria, Bioremediation, Chromium, Tannery, Wastewater



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