Succession of functional bacteria in a denitrification desulphurisation system under mixotrophic conditions

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Succession of functional bacteria in a denitrification desulphurisation system under mixotrophic conditions
	Liu, Qian; Huang, Cong; Chen, Xueqi; Wu, Yiping; Lv, Sihao; Wang, Aijie
刊名	ENVIRONMENTAL RESEARCH
	2020-09
卷号	188 页码:1-17
关键词	Denitrification desulphurisation system Influent loading Core genera Random forest model Correlation network
ISSN号	0013-9351
英文摘要	Large-scale use of ammonia, sulphate, and nitrate in industrial manufacturing has resulted in the generation of industrial wastewater pollutants. However, approaches to eliminate such contamination have not been extensively studied. Accordingly, in this study, we investigated the succession of bacteria under different influent loadings in a mixotrophic denitrification desulphurisation system. Four expanded granular sludge bed reactors were operated simultaneously. The sulphide loading of reactor I was 1.2 kg/m(3).day, the sulphide load of reactor II was 2.4 kg/m(3).day, and the sulphide load of reactor III was 3.6 kg/m(3).day. The molar ratio of carbon versus nitrogen in the influent under each condition was fixed at 1.26:1, and the molar ratio of sulphur versus nitrogen was fixed at 5:6; each reactor was operated for 90 days. Reactor IV was a verification reactor. The three conditions were repeated, and each condition was operated for 90 days. Middle- and late-stage samples under each condition were sequenced using a high-throughput sequencer. Azoarcus, Thauera, Arcobacter, and Pseudomonas were the core genera of the denitrification desulphurisation system under mixotrophic conditions. The genus Azoarcus was a cornerstone genus of mixotrophic conditions, as demonstrated using the random forest model and correlation network analysis.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45216]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Liu, Qian,Huang, Cong,Chen, Xueqi,et al. Succession of functional bacteria in a denitrification desulphurisation system under mixotrophic conditions[J]. ENVIRONMENTAL RESEARCH,2020,188:1-17.
APA	Liu, Qian,Huang, Cong,Chen, Xueqi,Wu, Yiping,Lv, Sihao,&Wang, Aijie.(2020).Succession of functional bacteria in a denitrification desulphurisation system under mixotrophic conditions.ENVIRONMENTAL RESEARCH,188,1-17.
MLA	Liu, Qian,et al."Succession of functional bacteria in a denitrification desulphurisation system under mixotrophic conditions".ENVIRONMENTAL RESEARCH 188(2020):1-17.