Reuse of printing and dyeing wastewater in processess assessed by pilot-scale test using combined biological process and sub-filter technology |
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| Authors: | Xujie Lu Lin Liu Bo Yang Jihua Chen |
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| Institution: | 1. Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China;3. Technical University and Mining Academy Freiberg, Germany;1. School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia;2. School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, 02600, Perlis, Malaysia;1. Henan Province Key Laboratory of Utilizition of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, PR China;2. National Center for Quality Supervision and Test of Nonmetallic Product, Xinyang 464000, PR China;1. Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece;2. Department of Biology, Section of Animal Biology, School of Natural Sciences, University of Patras, GR-26500, Patras, Greece;3. Department of Environmental and Natural Resources Management, University of Patras, 2 G. Seferi Str., GR-30100, Agrinio, Greece;4. Institute of Chemical Engineering Sciences (ICE-HT), Stadiou Str., Platani, GR-26504, Patras, Greece;1. Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States;2. Department of Biological Systems Engineering, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States;3. Nebraska Center for Materials and Nanoscience, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States |
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| Abstract: | In this work, a pilot-scale (300 m3/d) wastewater reclamation system was tested for printing and dyeing wastewater treatment from a textile factory. The wastewater was first hydrolyzed under anoxic condition, and then was treated under aerobic condition. Biologically treated wastewater was filtered by sub-filter technology (Patent: CN1308024A). The results showed that the average concentration of CODcr, color and turbidity in the effluent were less than 50 mg/L, 10 times and 2 NTU, respectively. The average CODcr, color and turbidity removal efficiencies were 91%, 92.5% and 90.9%, respectively. The treated effluent quality satisfied the requirement of water quality for printing and dyeing process. The most attracting part of the work was its extremely low color, low turbidity, low concentration of Fe and Mn, which was always demanded in textile sectors for an improved finish and better quality dyeing. |
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