| 工艺因子对于MFC中能量分配的协同效应分析 |
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| 引用本文： | 程本爱,贾辉,杨光,刘文斌,张宏伟,王捷. 工艺因子对于MFC中能量分配的协同效应分析[J]. 化工学报, 2018, 69(5): 2242-2249. DOI: 10.11949/j.issn.0438-1157.20171073 |
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| 作者姓名： | 程本爱 贾辉 杨光 刘文斌 张宏伟 王捷 |
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| 作者单位： | 1. 天津工业大学分离膜与膜过程省部共建国家重点实验室, 天津 300387;2. 天津工业大学环境与化学工程学院, 天津 300387;3. 天津大学环境科学与工程学院, 天津 300072 |
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| 基金项目： | 国家自然科学基金面上项目（51578375，51378349）；中国博士后科学基金（2017M621081）；国家留学基金委青年骨干教师资助计划（201609345007）。 |
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| 摘 要： | 微生物燃料电池（MFC）以产电和代谢的方式利用系统能量实现有机物降解。针对运行过程中能量的不同分配需求，以pH、有机负荷、溶解氧、电导率和外电阻为工艺因子，采用正交实验方法优选最佳工艺条件，从而实现MFC能量流调控的目的。研究表明：在实验工况下，最高产电能量转化效率和生物代谢能量利用效率分别为8.74%和66.03%，负荷和外电阻对产电能量转化效率有显著影响，负荷和pH对能量利用效率有显著影响，系统能量主要以生物代谢方式被利用。由此可见，在同等负荷条件下，若将MFC作为电转化单元时应主要控制其外电阻，若需提高MFC的有机物降解能力时pH则是首要控制因素。
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| 关 键 词： | 微生物燃料电池 有机化合物 过程控制 降解 能量分配 工艺因子 |
| 收稿时间： | 2017-08-09 |
| 修稿时间： | 2017-09-19 |
Analysis of synergistic effects of process factors on energy distribution in MFCs |
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| CHENG Ben'ai,JIA Hui,YANG Guang,LIU Wenbin,ZHANG Hongwei,WANG Jie. Analysis of synergistic effects of process factors on energy distribution in MFCs[J]. Journal of Chemical Industry and Engineering(China), 2018, 69(5): 2242-2249. DOI: 10.11949/j.issn.0438-1157.20171073 |
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| Authors: | CHENG Ben'ai JIA Hui YANG Guang LIU Wenbin ZHANG Hongwei WANG Jie |
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| Affiliation: | 1. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China;2. School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;3. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Microbial fuel cell (MFC) is a novel energy conversion device which is able to convert chemical energy into electrical energy. In MFCs, organic matter was degraded in ways of microbial metabolism and bioelectricity conversion. According to the different allocation requirements of energy in the process of operation, the energy flow could be controlled by changing the operation parameters. In this study, MFCs factors, such as pH, organic load, dissolved oxygen, electrical conductance and external resistance, were applied by orthogonal design experiments to optimize parameters for regulation of energy flow. The results showed that the highest efficiency of electric energy conversion was 8.74% and the loads and resistances were significant factors. On the other hand, the highest efficiency of biological metabolism was 66.03% and the load and pH were significant factors. Therefore, when the system was under the same load condition, if the MFC were used as an electrical conversion units, the external resistances should be controlled, while if organic matter conversion capacity was required to be improved, the pH should be controlled. |
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| Keywords: | microbial fuel cell organic compounds process control degradation energy distribution process factors |
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