Optimization of biological treatment of paper mill effluent in a sequencing batch reactor |
| |
| Institution: | 1. School of Science, Changchun University of Science and Technology, Changchun 130022, PR China;2. School of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, PR China;1. Particulate Fluids Processing Centre and Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia;2. The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia;1. Department of Biotechnology, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur, 713209, West Bengal, India;2. Department of Chemical Engineering, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur, 713209, West Bengal, India;3. Department of Zoology, Sonamukhi College, Sonamukhi, Bankura, 722207, West Bengal, India;1. Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226025, (U.P.), India;2. Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, UK;3. Department of Chemistry, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226025 (U.P.), India;4. Department of Botany and Microbiology, College of Science, King Saud University, P.O 2455, Riyadh, 11451, Saudi Arabia |
| |
| Abstract: | Laboratory scale research on the effects of operating parameters, including mixed liquor suspended solid (MLSS) concentration, volumetric exchange rate (VER), aeration time, temperature and daily operation cycle on biological treatment of the pulp and paper mill effluent was studied using four 4 l sequencing batch reactors (SBR). The results revealed that chemical oxygen demand (COD) removal efficiency was up to 93.1 ± 0.3% and the volumetric loading reached 1.9 kg BOD m−3 day−1 under optimal operating conditions. The treatment performance of organic removal by the SBR system remained stable during the operation. The effluent quality was satisfied with the discharge standard set by the local authority and the filamentous bulking problem was solved. At the same time, the sludge settleability, in terms of sludge volume index (SVI), was improved to the healthy level (SVI = 52.7 ± 1.3 ml g−1). |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
