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Copper recovery and simultaneous COD removal from copper phthalocyanine dye effluent using bipolar disc reactor |
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| Authors: | C. Ahmed Basha R. Saravanathamizhan V. Nandakumar K. Chitra Chang Woo Lee |
| Affiliation: | 1. Department of Chemical Engineering, Adhiyamaan College of Engineering, Hosur 635 109, Tamil Nadu, India;2. Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620 015, India;3. CSIR Laboratory, Central Electrochemical Research Institute, Karaikudi 630006, India;4. Tamil Nadu Pollution Control Board, Chennai 603209, Tamil Nadu, India;5. Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1 Seochun, Gihung, Yongin, Gyeonggi 446-701, South Korea |
| Abstract: | Electrochemical treatment of real acidic effluent of copper phthalocyanine dye manufacturing plant with a view to explore the feasibility of the simultaneous removal of copper and phthalocyanine using a bipolar disc electrochemical reactor has been investigated. Experiments were conducted in a bipolar capillary gap disc stack electrochemical reactor under batch recirculation mode. Electrodes were RuO2 and IrO2 coated on titanium as anode and titanium as cathode. Effects of current density, electrolysis time and effluent flow rate on copper recovery and simultaneous COD removal and energy consumption were critically examined. The current density of 2.5 A dm−2 and flow rate of 20 L h−1 achieved 91.1% COD removal and 90.1% copper recovery with the energy consumption of 50.86 kWh kg−1 for COD removal and simultaneous recovery of copper in a bipolar disc stack reactor. |
| Keywords: | Bipolar disc stack reactor Batch recirculation Electrochemical oxidation Copper recovery Phthalocyanine removal |
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