生物膜电极法降解氯苯、二氯苯的研究  

Degradation of chlorobenzenes and dichlorobenzenes by biofilm-electrode

作　　者：许炉生[1] 吴伟勇[1] 卢东[1] 葛洪铭 张国亮[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,浙江杭州310014 [2]宁海县环境保护监测站,浙江宁波315600

出　　处：《环境污染与防治》2011年第1期70-73,共4页Environmental Pollution & Control

摘　　要：研究证实,氯苯和二氯苯在生物膜电极下降解速率显著快于常规方法。质谱分析可知,氯苯的中间产物存在苯酚、乙酸,二氯苯的3种同分异构体中间产物均存在氯酚、苯酚和乙酸。中间产物表明,氯苯、二氯苯的生物膜电极降解途径完全不同于常规生物降解途径,而阴极的还原气氛对脱氯起到关键性影响。The biofilm-electrode reactor was established for degradation chlorobenzene and three isomers of dichlorobenzene.The mass spectrometry was applied for detecting the intermediate products of chlorobenzene and dichlorobenzene in biofilm-electrode system.Base on which,the degradation pathway was analyzed.Research verified that the degradation rate of these refractory organics was significantly faster than conventional biodegradation.The intermediate products produced in biofilm-electrode system were chlorophenol,phenol and acetic acid,which implied the totally different degradation pathway from conventional biodegradation.Result also revealed that the reducing atmosphere of cathode played a key role in dechlorination.

关 键 词：生物膜电极 氯苯 二氯苯 降解途径 中间产物 

分 类 号：X703[环境科学与工程—环境工程]