人工湿地型微生物燃料电池与生物膜电极耦合系统去除难降解有机物的效能及机理

项目名称： 人工湿地型微生物燃料电池与生物膜电极耦合系统去除难降解有机物的效能及机理

项目编号： No.21277024

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 环境科学、安全科学

项目作者： 李先宁

作者单位： 东南大学

项目金额： 80万元

中文摘要： 利用人工湿地（CW）和微生物燃料电池（MFC）对难降解有机物的净化潜能以及二者在构造上可相互融合的优势，构建全新的人工湿地型微生物燃料电池（CWMFC）；并将生物膜电极（BER）作为CWMFC的前处理，既利用了CWMFC产生的电能，又通过BER单元的电化学和生物电化学作用，提高其可生化性，促进后继CWMFC单元对难降解有机物的去除效果和同步产电性能，形成BER-CWMFC耦合系统。课题拟在已有研究的基础上，以电能的产生与利用为纽带，以实现BER和CWMFC对难降解有机物的转化和去除间的耦合，以及电化学、生物电化学和微生物反应的高效耦合为突破口，从物质、能量流分析及微生物学等方面，阐明对难降解有机物的转化、去除和产电机理，探索并掌握提高其电化学、生物化学等协同净化效应的条件，建立有利于系统中各单元充分发挥各自功能、并使系统协同净化、产电效能最大化和稳态化的理论、方法及应用模式。

中文关键词： 难降解有机物；微生物燃料电池；人工湿地；系统耦合；协同净化

英文摘要： The constructed wetland (CW) and microbial fuel cell (MFC) both have great potential in the purification of refractory organics and they could be integrated smoothly in the structure. In this proposal, we will develop a constructed-wetland type microbial fuel cell (CWMFC). In addition, the bio-film electrode reactor (BER) will be used as pre-treatment of CWMFC, which simultaneously use the electrical energy produced by CWMFC. On one hand, the biodegradability of refractory organics could be improved by BER unit based on the electrochemical and bio-electrochemical effects and, on the other hand, the removal efficiency of refractory organics and the electricity production of CWMFC could be promoted. Thus a coupled system BER-CWMFC can be formed. Based on our previous research, we will take the generation and utilization of electricity as the connection to realize the transform and removal of refractory organics by BER and CWMFC, tackling the effective combination of electrochemical, bio-electrochemical and microbial reactions. We aim to elucidate the mechanisms of transformation and degradation of refractory organics and electricity generation through matter flow and energy flow analysis as well as microbial analysis. We also attempt to explore and then master the favorable conditions which make the electrochemica

英文关键词： refractory organice；microbial fuel cell；constructed wetland；system coupling；collaborative purification