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Performance Evaluation of Column-Sbr in Paper and Pulp Wastewater Treatment: Optimization and Bio-Kinetics Publisher



Khan NA1 ; Khan SU2 ; Islam DT2 ; Ahmed S1 ; Farooqi IH2 ; Isa MH3 ; Hussain A4 ; Changani F5 ; Dhingra A6
Authors
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Authors Affiliations
  1. 1. Civil Engineering Department, Jamia Millia Islamia, New Delhi, India
  2. 2. Environmental Engineering Section, Civil Engineering Department, Zakir Hussain College of Engineering and Technology, Aligarh Muslim University, Aligarh, India
  3. 3. Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
  4. 4. Civil Engineering Section, University Polytechnic, Aligarh Muslim University, Aligarh, India
  5. 5. Department of Environmental Health Engineering, Tehran University of Medical Sciences, Iran
  6. 6. Department of Applied Science and Humanities Jamia Millia Islamia New Delhi, India

Source: Desalination and Water Treatment Published:2019


Abstract

Pulp and paper industry generates effluent containing harmful compounds like chlorophenols which are difficult to biodegrade. It requires an appropriate treatment in order to meet the stringent discharge standards. In this work, a bench scale column type sequential batch reactor (SBR) was employed for treating pulp and paper wastewater. The performance of SBR, seeded with acclimatized sludge was optimized and analysed for maximizing COD and AOX removal. The process parameters viz; pH, initial COD, cycle time and MLSS were optimized and their effects on response variables: COD removal efficiency, AOX removal efficiency and SVI were investigated. The optimum conditions were determined to be: Initial COD 1200 mg/l, pH 7.5, MLSS 2100 mg/L and cycle time 15 h, for 73.2% COD removal, 57.6% AOX removal and 122.8 mL/g SVI. The complex compounds were broken down into numerous intermediate compounds thus enhancing COD and AOX removal with low SVI. The bio-kinetics of the optimized system was also analyzed in order to understand the bacterial nature towards substrate utilization. Two kinetic models namely Grau second-order model and Stover–Kincannon model were found to be fitwell with high correlation coefficients (R2 = 0.99) for COD as well as AOX. © 2019 Desalination Publications. All rights reserved.
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