电动生物修复中电极矩阵的优化设计  

Optimization of electrode matrix in electrokinetic bioremediation.

作　　者：范向宇[1] 王慧[1] 罗启仕[2] 

机构地区：[1]清华大学环境科学与工程系,环境模拟与污染控制国家联合重点实验室,北京100084 [2]上海市环境科学研究院,上海200233

出　　处：《中国环境科学》2006年第1期34-38,共5页China Environmental Science

基　　金：国家'973'项目(2004CB418506);国家'863'项目(2004AA64920)

摘　　要：对电动生物修复中单对电极间的电场分布进行了模拟,并以此定义了修复的有效作用区.通过旋转叠加的方式,求出了各种电极矩阵构型的有效作用区分布,最后筛选出2种优化的电极构型,并通过小型实验加以验证.理论优化和实验结果表明,“中”字形和六边形分别是不同旋转方式下最优的电极构型.采用这2种电极构型,可节省电极材料费,同时保持系统的稳定性和污染物去除的均匀性,因而具有良好应用前景.The electric field distribution between the single electrodes in the electrokinetic bioremediation was simulated; and the effective area of the remediation was defined. Through the mode of rotational superposing, the effective area distribution of various rotational electrode matrix configurations were obtained, two optimized configurations were selected finally; and verified through small scale experiments. The result of theoretical optimization and experiments indicated that crisscross and hexagon were the best configurations under different rotational modes respectively. Adopting these two modes could reduce the cost of electrodes materials, meanwhile keep the stability of the system and the uniformity of the pollutant removal; thus possessing good application prospect.

关 键 词：电动生物修复技术 电极矩阵 电极构型优化 旋转电场 

分 类 号：X53[环境科学与工程—环境工程]