生物电化学系统中电活性生物膜催化污染物降解的研究进展

发布时间：2018-04-29 00:19

本文选题：生物电化学系统 + 生物膜　；参考：《化工进展》2016年12期

【摘要】：近年来,以电活性生物膜为基础构建而成的生物电化学系统成为环境领域的研究热点之一,其功能主要包括废水的处理和能源回收等。本文根据电活性生物膜在阳极与阴极功能的不同,介绍了阳极电活性生物膜以直接或间接方式为主的电子传递机制,其具备从多种污染物中回收电子的能力;阴极电活性生物膜具备高度的多样性和特异性,可以催化难降解污染物的还原降解。与此同时,本文也分析了电活性生物膜在现阶段研究的不足之处,包括较低的阳极产电功率密度以及阴极还未清晰的电子传递机制等问题。本文的分析表明,根据实际废水成分的不同,需要控制电活性生物膜群落的结构,实现不同功能微生物在电活性生物膜的协作,并通过对实际废水进行预处理,或者对电极材料进行优化来辅助电活性生物膜的催化过程,有助于达到高效去除废水中污染物的目的。
[Abstract]:In recent years, the bioelectrochemical system based on electroactive biofilm has become one of the research hotspots in the field of environment. Its functions mainly include wastewater treatment and energy recovery. According to the different functions of electroactive biofilm in anode and cathode, this paper introduces the electron transfer mechanism of electroactive biofilm in direct or indirect manner, which has the ability to recover electrons from various pollutants. Cathode electroactive biofilm has high diversity and specificity and can catalyze the reduction and degradation of refractory pollutants. At the same time, the shortcomings of the electroactive biofilm are analyzed, including the low anode power density and the unclear electron transfer mechanism of the cathode. The analysis in this paper shows that according to the different composition of the actual wastewater, it is necessary to control the structure of the electroactive biofilm community, to realize the cooperation of different functional microorganisms in the electroactive biofilm, and to pretreat the actual wastewater. Or to optimize the electrode materials to assist the catalytic process of electroactive biofilm, which is helpful to the efficient removal of pollutants in wastewater.
【作者单位】：东北大学机械工程与自动化学院;太原理工大学环境科学与工程学院;
【基金】：中国博士后科学基金(2015M570255) 中央高校基本科研业务费专项资金(N140303002) 辽宁省教育厅科学技术研究项目(L20150178) 东北大学博士后科研基金(20150304)项目
【分类号】：X703

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