Spatial distribution of bacterial community in EGSB reactor treating synthetic sulfate-containing wastewater at low organic loading rate

作     者：Kai Zhang Xiaolei Cao Yuxing Sheng Hongbin Cao 

作者机构：National Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Graduate University of Chinese Academy of Sciences 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：2014年第59卷第1期

页      面：54-61页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by The National High Technology Research and Development Program of China(2011AA060702,2011AA060904) the Open Funding Project of the National Key Laboratory of Biochemical Engineering(2012KF07) 

主　　题：EGSB反应器 有机负荷率 硫酸盐废水 细菌群落 空间分布 合成废水 PCR-DGGE 膨胀颗粒污泥床反应器 

摘      要：Given that the consumption of organic substances entails costly biodesulfurization,the characteristics of the bacterial community in a reactor should be determined to increase the desulfurizing rate under low organic loading *** this study,the bacterial community distribution in the expanded granular sludge bed reactor used to treat sulfate-containing wastewater with low organic loading rate was determined by polymerase chain reaction-denaturing gradient gel electrophoresis(PCRDGGE)and 16S rDNA clone library *** results showed that the predominant bacteria were stable and accounted for*90%sulfate removal *** in band positions and intensities indicated that the distribution and abundance of bacteria were affected by their positions in the *** bands were identified in the bacterial community comprising Desulfovibrio,Desulfomicrobium,Thiomonas,Acinetobacter,Bacteroidetes,and *** functions in the reactor were also *** possible links between the functional and microbial responses were also investigated based on the characteristic and spatial distribution of each bacterium in consortium.