Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths

doi:10.1016/j.bej.2019.04.008

	Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths
	Mu, Tingzhen 1,2; Xing, Jianmin 1,2,3; Yang, Maohua 1,2
刊名	BIOCHEMICAL ENGINEERING JOURNAL
	2019-07-15
卷号	147 页码:100-109
关键词	Haloalkaliphilic SRB 16S rRNA sequencing Bacterial communities
ISSN号	1369-703X
DOI	10.1016/j.bej.2019.04.008
英文摘要	Efficient removal of high concentration sulfate from wastewater with high sodium concentration and pH is a challenge to date. In this study, a bench-scale haloalkaliphilic bioreactor was continuously operated for high-efficiency treatment of high concentration sulfate in simulation wastewater. It was found that up to 70% of sulfate was removed within hydranlic retention time of 24 h when sulfate concentration in influent was as high as 3000 mgl(-1) at 1.0 M Na+ and pH 9.5. Sulfate removal rate reached 2.12 gl(-1) d(-1), which was much higher than results in literatures. The bottom region of bioreactor contributed approximate sulfate removal of 40% to total sulfate reduction. Then, the rate decreased gradually with the reduction of depth. Moreover, the composition of organic acids was closely related to depth of the bioreactor. According to microbial community analysis, Desulfonatronovibrio might play the most important role in sulfate removal, and its relative abundance was the highest at bottom region. The abundance decreased gradually as reduction of the depth of bioreactor. In addition, these results revealed a dynamic process of sulfate removal and variety of bacterial communities in whole bioreactor. The identification of many microorganisms by 16S rRNA sequencing deepened the insight of SRB interaction with non-SRB in sulfate-removal process. The high-efficiency process offered a great biotechnological penitential for sulfate removal of industrial wastewater.
资助项目	Major Science and Technology Program for Water Pollution Control and Treatment in China[2017ZX07402003] ; National Science Foundation of China[31800030] ; National Science Foundation of China[31872633and21878307]
WOS关键词	HALOPHILUS SP NOV. ; GEN. NOV. ; ELECTRON-DONORS ; WASTE-WATER ; MONO LAKE ; SP. NOV ; PERFORMANCE ; METHANE ; SPIROCHETE ; DIVERSITY
WOS研究方向	Biotechnology & Applied Microbiology ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000475995000012
资助机构	Major Science and Technology Program for Water Pollution Control and Treatment in China ; National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30332]
专题	中国科学院过程工程研究所
通讯作者	Mu, Tingzhen
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, POB 353, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Mu, Tingzhen,Xing, Jianmin,Yang, Maohua. Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths[J]. BIOCHEMICAL ENGINEERING JOURNAL,2019,147:100-109.
APA	Mu, Tingzhen,Xing, Jianmin,&Yang, Maohua.(2019).Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths.BIOCHEMICAL ENGINEERING JOURNAL,147,100-109.
MLA	Mu, Tingzhen,et al."Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths".BIOCHEMICAL ENGINEERING JOURNAL 147(2019):100-109.