Simple and cost-effective measures for the improvement of paper mill effluent treatment – A case study |
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| Authors: | Darja B Žarković Žaklina N Todorović Ljubinka V Rajaković |
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| Institution: | 1. Belgrade Polytechnic College, Brankova 17, 11000 Belgrade, Serbia;2. Vin?a Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia;3. Faculty of Technology and Metallurgy, Karnegijeva 4, P.O. Box 494, 11000 Belgrade, Serbia;1. LAQV-REQUIMTE, DQ, FCT, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;2. Sines Refinery, Petrogal S.A., 7520-952, Sines, Portugal;1. Department of Chemical & Petrochemical Engineering, University of Nizwa Birkat Al-Mouz, PO Box 33, Postal Code 616 Birkat Al-Mouz, Oman;2. School of Chemical Engineering and Advanced Materials, Newcastle University, 535 Clementi Road, Blk 35 #02-01, Singapore 599489, Singapore;1. College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, PR China;2. School of Ecology and Environment, School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China;3. School of Pharmaceutical Sciences, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan, 450001, PR China;4. Key Laboratory for Water Quality and Conservation of Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Linköping University – Guangzhou University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou, 510006, PR China;5. Henan Junhe Environmental Protection Technology Co. LTD, Zhengzhou, Henan, 450001, PR China;6. Jiaozuo Ruifeng Paper Co., LTD, Jiaozuo, Henan, 454950, PR China;7. Jiangsu Key Laboratory of Brain Disease Bioinformation, Department of Biological Science, Xuzhou Medical University, Xuzhou, 221004, PR China;8. Nuclear Chemistry and Industrial Material Recycling, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Gothenburg, Sweden;1. Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia;2. Advanced Engineering Platform, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia;3. Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia;4. School of Science, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia;5. Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia |
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| Abstract: | In this study, the performance and the efficiency of physico-chemical effluent treatment in a paper mill was investigated, with the aim of evaluating the treatment rationality and running stability. The effluent treatment plant (ETP) uses alum as a coagulant and polyacrylamide as a flocculant in multi-stage water purification. Inadequate efficiency and some operational problems were observed and their occurrences were investigated. Several simple measures inside the mill and some technical measures can prevent or postpone expensive end-of-pipe treatment investments, such as biological treatment. Chemically enhanced primary treatment under optimal operating conditions can be a stand-alone technique for achieving high quality effluent. Furthermore, reductions in wastewater generation in combination with fiber and filler recovery provide environmental benefits as well as significant economic savings in production. The advantages of the cleaner production approach in existing treatment units compared to expensive biological end-of-pipe technologies are obvious. This study demonstrated that the examined mill could easily and cost-effectively change its water system toward strict discharge limits by continuing to use the existing treatment units. |
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