Biodecolorizationof Azo Dye by Microbial Isolates from Textile Effluent and Sludge
Journal Title: Universal Journal of Environmental Research and Technology - Year 2012, Vol 2, Issue 6
Abstract
The dye decolourizing isolates, Pseudomonas sp, Klebsiella sp and Proteus sp were isolated from the textile effluent samples and Shiegella sp, Morganella sp and Klebsiella sp were isolated from sludge collected from AmanishahNala, Sanganer, Jaipur. Different parameters such as various carbon source, nitrogen source, temperature and pH were optimized for decolourization of Light Red Dye by using bacterial isolates. The present study confirms the ability of all textile effluent isolates for decolourization of light red dye showing 80% decolourization whereas sludge isolates showed 40% decolourization under optimum conditions. Among all the isolates, Proteus sp from textile effluent and Klebsiella sp from sludge were found to be most efficient in dye decolourization. All parameters studied in this paper were found to be effective for all isolates. The selected bacterium shows higher decolourization in shaking condition as compared to static condition. The optimum pH obtained for decolourization of Light Red dye by all bacterial strains was 8.0-8.5. Although, good decolourization efficiency even in alkaline region was observed. The optimum temperature was found to be 550C. Enhanced decolourization was observed in presence of glucose as a carbon source and yeast extract & urea as a nitrogen source. The results reported here warrant further investigation to establish the usefulness of these isolates for bioremediation and biodegradation application such as waste water treatment. High decolourization extent and facile conditions show the potential for this bacterial strain to be used in the biological treatment of dyeing mill effluents.
Authors and Affiliations
Sonia Sethi, Shubhum, Mohan Mukesh Malviya, Neelam Sharma, Saksham Gupta
Keywords
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