Bioremediation of Pulp and Paper Mill Effluent by Tannic Acid Degrading Enterobacter sp.
Wastewaters from pulp and paper mills are highly toxic and around 250 xenobiotic compounds have been reported in the effluents. Tannic acid degrading bacterium, Enterobacter sp. was isolated from soil by tannic acid enrichment. This isolate was used for bioremediation of pulp and paper mill effluents. Parameters like temperature, agitation, inoculum size and treatment duration were optimized by using Qualiteck-4 software. Reduction in lignin 73% and colour up to 82% was also observed. Encouraging results were observed is reduction of COD, BOD with 16-h retention time in batch culture.
KeywordsBioremediation COD BOD Lignin Colour
The authors acknowledge the financial help provided by the Department of Biotechnology, Government of India. The authors also acknowledge Mr. Indrajeet Singh and Mr. Virendra Kumar Tyagi for extending their cooperation for providing wastewater samples, whenever required and the generous hospitality offered to us upon each visit. We are also thankful to CSIR for providing necessary infrastructure.
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