Biodegradation and Decolorization of Pulp and Paper Mill Effluent by Anaerobic and Aerobic Microorganisms in a Sequential Bioreactor |
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| Authors: | Yogita Chuphal Vimal Kumar Indu Shekhar Thakur |
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| Institution: | (1) Environmental Biotechnology Laboratory, Department of Environmental Sciences, College of Basic Science and Humanities, G.B. Pant University Of Agriculture and Technology, 263145 Pantnagar, Uttaranchal, India;(2) School of Environmental Sciences, Jawaharlal Nehru University, 110 067 New Delhi, India |
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| Abstract: | Summary Paecilomyces sp. and Pseudomonas syringae pv myricae (CSA105) were isolated from sediment core of drainage of the pulp and paper mill industry. Fungi and bacteria were applied
for treatment of pulp and paper mill effluent in a two-step and three-step fixed film sequential bioreactor containing sand
and gravel at the bottom of the reactor for immobilization of microbial cells. Degradation of chlorinated phenols and formation
of their metabolites were determined by high performance liquid chromatography. The microbes exhibited significant reduction
in colour (88.5%), lignin (79.5%), chemical oxygen demand (87.2%) and phenol (87.7%) in two-step aerobic sequential bioreactor,
and colour (87.7%), lignin (76.5%), chemical oxygen demand (83.9%) and phenol (87.2%) in three-step anaerobic-aerobic sequential
bioreactor. |
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| Keywords: | Anaerobic bacteria chemostat chlorinated organic compounds degradation Paecilomyces sp Pseudomonas syringae pv myricae pulp and paper mill effluent sequential bioreactor |
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