Degradation and characteristic changes of organic matter in sewage sludge using microbial fuel cell with ultrasound pretreatment |
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| Authors: | Junqiu Jiang Qingliang Zhao Liangliang Wei Kun Wang Duu-Jong Lee |
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| Affiliation: | 1. State Key Laboratory of Urban Water Resources and Environments (SKLUWRE), School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;2. Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan 10617, China;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;2. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;2. College of Life Science and Technology, Harbin Normal University, Harbin 150025, China;3. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan;4. Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, China;2. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China;3. FAW Jiefang Automotive Company Ltd., Changchun 130400, China;4. Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;2. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;3. Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan;1. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;2. Graduate Institute of Applied Science & Technology, National Taiwan University of Science and Technology, Taipei, Taiwan;3. Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan;4. Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan, Taiwan;5. Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan |
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| Abstract: | Microbial fuel cell (MFC) could be an efficient sludge treatment unit in regard of rates and extents of total chemical oxygen demand (TCOD) removal, particularly when ultrasound was applied to pretreat the sludge. This study characterized the organic matter in sludge before and after MFC treatment, with or without ultrasound as a pretreatment stage. The 5-d MFC tests with electric load significantly enhanced TCOD removal rate from 11.3% to 19.2% for raw sludge and from 25% to 57% for sludge pretreated with >0.6 W ml?1 ultrasound, using conventional anaerobic digestion test (without electric load) as control. The aromatic proteins, soluble microbial byproduct-like fluorescent compounds and carboxylic components, aliphatic components (C–H related), hydrocarbon and carbohydrate materials were identified to be principally released by ultrasound pretreatment and the fuels in the present MFC study. |
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