文献类型：期刊文献

英文题名：Salt-tolerance aerobic granular sludge: Formation and microbial community characteristics

作者：Ou, Dong[1];Li, Hui[1];Li, Wei[2];Wu, Xiao[1];Wang, Yi-qiao[1];Liu, Yong-di[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Zhejiang Univ, Coll Environm & Resource Sci, Dept Environm Engn, Hangzhou 310058, Zhejiang, Peoples R China

年份：2018

卷号：249

起止页码：132

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20181004854590);WOS:【SCI-EXPANDED(收录号:WOS:000425764100018)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51578240, 51378208, and 41273109), the National Key Research and Development Plan (2016YFC0206200), Open Foundation of State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences (SKLECRA2016OFP19), the Fok Ying Tung Education Foundation (141077), the Innovation Program of the Shanghai Municipal Education Commission (14ZZ059), Fundamental Research Funds for the Central Universities (WB1516015, WB1616012). We would like to thank the anonymous referees for their helpful comments regarding this paper.

语种：英文

外文关键词：Wastewater treatment; Salt-tolerance aerobic granular sludge; Formation; Microbial community

摘要：The salt-tolerance aerobic granular sludge (SAGS) dominated by moderately halophilic bacteria was successfully cultured in a 9% (w/v) salty, lab-scale sequence batch reactor (SBR) system. Influence of high salinity (0-9% w/v NaCl) on the formation, performance and microbial succession of the SAGS were explored. Crystal nucleus hypothesis, selection pressure hypothesis and compressed double electric layers hypothesis were used to discuss the formation mechanism of SAGS. Notably, salinity could be seen as a kind of selection pressure contributed to the formation of SAGS, while salinity also declined the performance of SAGS system. High throughput 16S rRNA gene analysis showed that the salinity had great influence on the species succession and community structure of SAGS. Moreover, Salinicola and Halomonas were dominant at 9% salt concentration, therefore moderate halophiles were identified as functional groups for the tolerance of hypersaline stress.