Utilizing Aspergillus Niger for Bioremediation of Tannery Effluent

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Jyoti Bisht and N.S.K. Harsh

Forest Pathology Division, Forest Research Institute, Dehradun-248006, Uttarakhand, India

 

Tannery waste water is characterized by highly toxic ammonium, sulfates, surfactants, acids, dyes, sulfonated oils and organic substances, including natural or synthetic tannins. This study was designed to study the potential of Aspergillus niger for bioremediation of tannery effluent. Addition of glucose as a carbon source in the tannery effluent encouraged the growth of A. niger but there was no change in physico-chemical parameters.The toxic effects were mostly reduced after treatment when 20% mineral salt medium was added in tannery effluent. Colour, COD, TS, TDS, TSS, chlorides, sulfides and chromium reduction were 71.9%, 72.1%, 69.0%, 65.0%, 68.1%, 66.8%, 65.7% and 57.8%, respectively.

Keywords: Aspergillus niger; Bioremediation; Chromium; Tannery effluent.

 

 

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