Perchlorate Biological Degradation Using Active Sludge with Different Electron Donors
Biological reduction by the microorganism has been proved to be one of the most efficient methods to degrade the perchlorate,which is wide and permanent in soil and groundwater.To further interpretation the biological reduction of perchlorate (ClO4-),three microbial reduction systems were conducted to be electron donors for perchlorate biological reduction:primitive reduction system (PR),primitive reduction system with hydrogen (HR) and primitive reduction system with acetate (AR).Microbial communities composition in these three systems was analyzed by using 16Sr RNA clone library.The results suggested that the rate of perchlorate reduction with acetate as electron donor was more rapid than its reduction with hydrogen.Microbial analysis indicated that the dominant communities were β-proteobacteria and γ-proteobacteria in HR and AR,respectively.The composition of bacterial community played an important role in perchlorate bioremediation,and can be used as a symbot of perchlorate reduction in autotrophic and heterotrophic biodegradation.
Biological reduction Perchlorate Autotrophic biodegradation Heterotrophic biodegradation
Xie Yuxuan Guan Xiangyu Yu Lisha Liu Fei Chen Honghan
School of water resources and Environment, China University of Geosciences, Beijing, 100083 School of Ocean Sciences, China University of Geosciences , Beijing , 100083
国际会议
武汉
英文
310-314
2012-10-16（万方平台首次上网日期，不代表论文的发表时间）