| 生物阴极强化生物电化学系统降解2，4-二氯苯酚 |
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| 引用本文： | 杜敬敬,刘浩,严群. 生物阴极强化生物电化学系统降解2，4-二氯苯酚[J]. 食品与生物技术学报, 2014, 33(6): 662-666 |
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| 作者姓名： | 杜敬敬 刘浩 严群 |
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| 作者单位： | 江南大学环境与土木工程学院; |
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| 基金项目： | 江苏省自然科学基金项目(BK2012558);科技部水体污染控制与治理科技重大项目(2011ZX07301-002);江苏省高校科研成果产业化项目(JHB2011-29) |
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| 摘 要： | 研究了生物阴极对生物电化学系统(BES)还原降解2,4-二氯苯酚(2,4-Dichlorophenol,简称2,4-DCP)的强化作用。结果表明,用不同浓度的2,4-DCP驯化阴极微生物可有效提高其降解率;在生物阴极体系中2,4-DCP降解趋势曲线速率常数为0.640,而非生物阴极体系仅为0.321;同时,生物阴极还可增强BES系统降解2,4-DCP时的循环伏安曲线、功率密度曲线和极化曲线等电化学特性,进而强化BES对2,4-DCP的还原降解效率。
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| 关 键 词： | 生物电化学系统 -二氯苯酚 生物阴极 电化学特性 |
A Study on Biological Cathode Strengthening the Degradation of 2,4-Dichlorophenol by BES |
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| DU Jingjing,LIU Hao and YAN Qun. A Study on Biological Cathode Strengthening the Degradation of 2,4-Dichlorophenol by BES[J]. Journal of Food Science and Biotechnology, 2014, 33(6): 662-666 |
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| Authors: | DU Jingjing LIU Hao YAN Qun |
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| Affiliation: | School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China;School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China;School of Food Science and Technology, Jiangnan University, Wuxi 214122, China |
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| Abstract: | In this study, the enhancement of reductive degradation of 2, 4-DCP at biocathode using BES was investigated. It was found that the removal efficiency could be improved with the 2, 4-DCP acclimatization on biocathode microbes. Besides, the reaction rate constant of the degradation trend curve of 2, 4-DCP reached 0.640 and 0.321 in the case of biocathode group and abiotic cathode group, respectively.Moreover, the introduction of biocathode could enhance the electrochemical characteristics of BES, namely, the cyclic voltammetry curve, power density curve and polarization curve, and finally led to the efficient degradation of 2, 4-DCP. |
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| Keywords: | bioelectrochemical system 2 4-dichlorophenol biocathode electrochemical characteristics |
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