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Start-up strategies of a heterotrophic nitrifying-aerobic denitrifying bacterium in moving bed biofilm reactor (MBBR) systems for mariculture wastewater treatment

文献类型：期刊论文

作者Liu, Tangfeng1,3,4,5; Liu, Mei2; Jiang, Keyong1,3,5; Zhao, Xudong2; Wang, Baojie1,3,5; Wang, Lei1,3,4,5
刊名JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
出版日期2025-12-01
卷号13期号:6页码:12
关键词Heterotrophic nitrification-aerobic denitrification Mariculture wastewater treatment Stutzerimonas frequens strain TF18 Nitrogen removal Moving bed biofilm reactors
ISSN号2213-2929
DOI10.1016/j.jece.2025.120456
通讯作者Wang, Baojie(wangbaojie@qdio.ac.cn) ; Wang, Lei(leiwang@qdio.ac.cn)
英文摘要Moving bed biofilm reactors (MBBRs) possess the difficult problems of the prolonged start-up time and inefficient nitrogen compound removal in mariculture wastewater treatment. This study utilized Stutzerimonas frequens strain TF18, a heterotrophic nitrification-aerobic denitrification (HN-AD) bacterium isolated from a mariculture environment, to propose two targeted strategies for improving MBBR performance. These strategies included modifying the carrier surface with extracellular polymeric substances (EPS) produced by TF18 (MBBR-E) and direct bioaugmentation with live TF18 cells (MBBR-T). Compared to the control group (MBBR-C), both MBBR-E and MBBR-T not only accelerated the nitrogen removal process but also improved the nitrite (NO2- -N) removal efficiency. Moreover, both strategies also promoted biofilm formation. EPS modification increased the specific surface area and roughness of the carriers, enhancing initial microbial adhesion, although it had limited effects on early microbial diversity and richness. In contrast, bioaugmentation with TF18 significantly increased microbial diversity and richness in the early stages, further facilitating biofilm development. Metagenomic analysis revealed that Paracoccus and Leisingera were the dominant genera involved in aerobic denitrification. Importantly, MBBR-E and MBBR-T exhibited enriched abundances of napA, nirS, norB, and nosZ genes, improving their aerobic denitrification performance. This study provides theoretical insights and specific methods for optimizing MBBR start-up strategies in mariculture wastewater conditions.
WOS关键词AQUACULTURE ; DENITRIFICATION
资助项目STS Project of CAS and Fujian Province[2024T3028] ; Key R & D Project of Shan-dong Province[2024TZXD047]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001632385000006
出版者ELSEVIER SCI LTD
源URL[http://ir.qdio.ac.cn/handle/337002/204384]  
专题海洋研究所_实验海洋生物学重点实验室
通讯作者Wang, Baojie; Wang, Lei
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
2.Marine Sci Res Inst Shandong Prov, Qingdao, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Expt Marine Biol Lab, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Breeding Biotechnol & Sustainable Aq, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Tangfeng,Liu, Mei,Jiang, Keyong,et al. Start-up strategies of a heterotrophic nitrifying-aerobic denitrifying bacterium in moving bed biofilm reactor (MBBR) systems for mariculture wastewater treatment[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2025,13(6):12.
APA Liu, Tangfeng,Liu, Mei,Jiang, Keyong,Zhao, Xudong,Wang, Baojie,&Wang, Lei.(2025).Start-up strategies of a heterotrophic nitrifying-aerobic denitrifying bacterium in moving bed biofilm reactor (MBBR) systems for mariculture wastewater treatment.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,13(6),12.
MLA Liu, Tangfeng,et al."Start-up strategies of a heterotrophic nitrifying-aerobic denitrifying bacterium in moving bed biofilm reactor (MBBR) systems for mariculture wastewater treatment".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 13.6(2025):12.

入库方式： OAI收割

来源：海洋研究所

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