中文摘要：

研究了电催化体系、厌氧微生物体系和厌氧微生物电化学催化体系（电生物体系）对五氯酚（PCP）的降解，研究发现电生物体系的降解效率较电催化体系提高85．2％，较微生物体系提高18．5％．电生物体系中PCP脱氯的途径为：PCP先间位脱氯主要生成2，3，4，6-TeCP和2，4，6-TCP，而后2，4，6-TCP脱氯主要生成2，4-DCP，再经对位脱氯生成邻氯酚和苯酚；苯酚在阳极附近多菌种协同作用下进一步氧化，从而减少苯酚的积累加快了PCP的还原转化．电生物体系通过微生物对电子的“长”距离传递和生物还原转化，形成了电化学与生物的交互反应过程，提高了PCP的降解效果．

英文摘要：

The pentachlorophenol （PCP）degradation using an electrocatalytic system, system,and an anaerobic system with bioelectrochemical catalysis （a bioelectrical studied, respectively. The results showed that the degradation efficiency of the an anaerobic system ） was bioelectrical system increased by 85.2% than that of the electrocatalytic system and by 18.5% than that of the microbial system. In the bioelectrical system the main process of the PCP dechlorination was as follow：PCP was dechlorinated at the meta-position and converted to 2,3,4,6-TeCP and 2,4, 6-TCP in turn ,the further dechlorination of 2,4,6-TCP mainly produced 2,4-DCP, and then 2, 4-DCP was dechlorinated at the para-position and generated ortho-chlorophenol and phenol. Phenol oxidation under the multi-strain synergy near the anode reduced the phenol concentration and accelerated the reductive degradation of PCP. Because the bacteria reduced PCP and transferred electrons for a long distance, the electrochemical and biological interactive response proceeded and the efficiency of the PCP degradation improved in the bioelectrical system.