Volume No. 6 Issue No.: 3 Page No.: 439-445 Jan-Mar 2012

 

ACCUMULATION POTENCY OF HEAVY METALS BY Saccharomyces sp. INDIGENOUS TO PAPER MILL EFFLUENT

 

B. Thippeswamy*1, C.K. Shivakumar and M. Krishnappa2

1. Department of P.G. Studies and Research in Microbiology, Kuvempu University, Bio-Science Complex, Shankaraghatta, Karnataka (INDIA)
2. Department of P.G. Studies and Research in Applied Botany, Kuvempu University, Bio-Science Complex, Shankaraghatta, Karnataka (INDIA)

 

Received on : September 2, 2011

 

ABSTRACT

 

Investigations were carried out to isolate Saccharomyces sp. from paper mill effluent for bioremediation of toxic heavy metals. Multi-metal tolerant yeast with high concentration gradient of Cu, Zn, Ni, Cr, Cd and Pb was isolated. Physicochemical characteristics including heavy metals were determined for untreated and treated paper mill effluent. Heavy metals reduction in industrial treated effluent was found to be insignificant. The isolate was checked for bioaccumulation ability of toxic metals present in both aqueous medium and effluent. Obtained result shows high Cd (52%) accumulation followed by Pb (45%), Ni (43%), Cr (41%), Zn (38%) and Cu (37%) in aqueous medium. Significant reduction of Cu, Zn, Ni, and Pb content was observed in paper effluent treated with Saccharomyces sp.

 

Keywords : Bioaccumulation, Heavy metal, Paper mill effluent, Saccharomyces sp., Toxic

 

 

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