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Bioaugmentation treatment of nitrogen-rich wastewater with a denitrifier with biofilm-formation and nitrogen-removal capacities in a sequencing batch biofilm reactor
Hong, Pei1,2; Wu, Xingqiang1; Shu, Yilin3,4; Wang, Chunbo1; Tian, Cuicui1; Wu, Hailong1,4; Xiao, Bangding1
2020-05-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume303Issue:1Pages:9
Abstract

A strain with efficient biofilm-formation and aerobic denitrification capabilities was isolated and identified as Pseudomonas mendocina IHB602. In pure culture, strain IHB602 removed almost all NO3--N, NO2--N, and NH4+-N (initial concentrations 50 mg/L) within 24 h. The strain produced large amounts of extracellular polymeric substances (maximum 430.33 mg/g cell dry weight) rich in protein but containing almost no humic acid. This, and strong autoaggregation (maximum 47.09%) and hydrophobicity (maximum 85.07%), imparted strain IHB602 with biofilm forming traits. A sequencing batch biofilm reactor bioaugmented with strain IHB602 (SBBR1) had more rapid biofilm-formation than the control without strain IHB602 inoculation (SBBR2). During the stabilization period, the effluent removal ratios for NH4+-N (95%), NO3--N (91%) and TN (88%) in SBBR1 were significantly higher than those in SBBR2 (NH4+-N: 91%, NO3--N: 88%, TN: 82%). Microbial community structure analysis revealed that strain IHB602 successfully proliferated and contributed to nitrogen removal as well as biofilm formation.

KeywordAerobic denitrification Biofilm formation Inorganic nitrogen removal Bioaugmentation
DOI10.1016/j.biortech.2020.122905
Indexed BySCI
Language英语
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000516839600003
WOS KeywordMICROBIAL COMMUNITY ; AEROBIC DENITRIFICATION ; BACTERIUM ; SYSTEM ; AUTOAGGREGATION ; IDENTIFICATION ; COAGGREGATION ; ADHESION
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/35816
Collection水环境工程研究中心_期刊论文
Corresponding AuthorXiao, Bangding
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Key Lab Conservat & Utilizat Important Biol Resou, Wuhu 241000, Peoples R China
4.Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China
Recommended Citation
GB/T 7714
Hong, Pei,Wu, Xingqiang,Shu, Yilin,et al. Bioaugmentation treatment of nitrogen-rich wastewater with a denitrifier with biofilm-formation and nitrogen-removal capacities in a sequencing batch biofilm reactor[J]. BIORESOURCE TECHNOLOGY,2020,303(1):9.
APA Hong, Pei.,Wu, Xingqiang.,Shu, Yilin.,Wang, Chunbo.,Tian, Cuicui.,...&Xiao, Bangding.(2020).Bioaugmentation treatment of nitrogen-rich wastewater with a denitrifier with biofilm-formation and nitrogen-removal capacities in a sequencing batch biofilm reactor.BIORESOURCE TECHNOLOGY,303(1),9.
MLA Hong, Pei,et al."Bioaugmentation treatment of nitrogen-rich wastewater with a denitrifier with biofilm-formation and nitrogen-removal capacities in a sequencing batch biofilm reactor".BIORESOURCE TECHNOLOGY 303.1(2020):9.
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