Biodegradation of Thiocyanate from Aqueous Waste by a Mixed Bacterial Community.
Patil Yogesh B (2008) Biodegradation of thiocyanate from aqueous waste by a mixed bacterial community. Research Journal of Chemistry and Environment 12(1): 69-75 (Scopus; ISSN: 0972- 0626)
7 Pages Posted: 16 Nov 2014
Date Written: November 15, 2014
Aqueous wastes containing thiocyanate (SCN-) are frequently encountered from variety of industrial processes. If improperly managed, these wastes can cause reversible or irreversible impact on the soil and water environment. In the process of developing a microbial technology for the SCN- removal from aqueous waste, heterotrophic bacterial consortium’s capable of degrading the SCN- compound were isolated by an enrichment culture technique from activated sludge and garden soil. All the isolated cultures were Gram negative and motile. Bacterial community isolated from activated sludge was found to be more efficient SCN- degraders compared to the bacterial consortium isolated from garden soil. Experiments performed under standardised laboratory conditions revealed that biodegradation of SCN- (50 mg/l) by microbial community isolated from activated sludge occurred within 24 h with an efficiency of >99.9% at pH 7.0, temperature 30°C, glucose 5 mM and initial cell density of 108 cells/ml.
Keywords: Biodegradation, Biodetoxification, Bioremediation, Thiocyanate, Bacterial Consortium, Activated sludge, Garden soil
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