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Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths
Mu, Tingzhen1,2; Xing, Jianmin1,2,3; Yang, Maohua1,2
2019-07-15
Source PublicationBIOCHEMICAL ENGINEERING JOURNAL
ISSN1369-703X
Volume147Pages:100-109
AbstractEfficient 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.
KeywordHaloalkaliphilic SRB 16S rRNA sequencing Bacterial communities
DOI10.1016/j.bej.2019.04.008
Language英语
WOS KeywordHALOPHILUS SP NOV. ; GEN. NOV. ; ELECTRON-DONORS ; WASTE-WATER ; MONO LAKE ; SP. NOV ; PERFORMANCE ; METHANE ; SPIROCHETE ; DIVERSITY
Funding ProjectMajor 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 Research AreaBiotechnology & Applied Microbiology ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Chemical
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment in China ; National Science Foundation of China
WOS IDWOS:000475995000012
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30333
Collection中国科学院过程工程研究所
Corresponding AuthorMu, Tingzhen
Affiliation1.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
Recommended Citation
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.
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