Purification Effect and Microbial Community Analysis of Aquaculture Wastewater Using High-Efficiency and Stable Biochemical System
文献类型： 外文期刊
作者： Su, Lei 1 ; Wu, Hangtao 2 ; Yang, Minghui 2 ; Su, Yuting 1 ; Wu, Shanshan 1 ; Gao, Hang 1 ; Li, Yaying 2 ; Wang, Dan 2 ; Lu, Yusheng 2 ; Zhang, Kun 2 ; Zhou, Donglai 3 ; Gu, Wenjie 2 ; Peng, Huanlong 2 ;
作者机构： 1.Guangzhou Resource Environm Protect Technol Co Ltd, Guangzhou 510075, Peoples R China
2.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Nutrient Cycling & Farmland Conservat Guan, Key Lab Plant Nutr & Fertilizer South Reg,Minist A, Guangzhou 510640, Peoples R China
3.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Peoples R China
关键词： aquaculture wastewater; microbial community; pollutant removal; stable bioreactor
期刊名称：WATER （ 影响因子：3.0； 五年影响因子：3.3 ）
ISSN：
年卷期： 2025 年 17 卷 1 期
页码：
收录情况： SCI
摘要： An adaptable, low-cost, and easy-to-operate biological treatment system for pollutant abatement in aquaculture water at the field pond scale needs to be developed. In this study, the pollutant removal capacity of a stable bioreactor for aquaculture wastewater was assessed, and the related mechanism was elucidated via an analysis of the microbial community's characteristics and functions. The average removal efficiencies of chemical oxygen demand, suspended solids, total nitrogen, and total phosphorus were 40%, 86.22%, 38.62%, and 53.74%, respectively. The effluent quality meets the Requirement for Water Discharge from Freshwater Aquaculture Pond, SC/T9101-2007. The results indicate that the fillers under anaerobic conditions could attract Denitratisoma and unclassified_Rhodocyclaceae, promoting the denitrification reaction. This aligns with the characteristic that total nitrogen in aquaculture sewage mainly exists in the form of nitrate nitrogen. An anaerobic atmosphere helps degrade organic contaminants at liquid interfaces and remove nitrogen in the solid phase. The fillers under anaerobic conditions could attract Bacteroidota and promote the production of polysaccharides to form biofilms, which may be associated with phosphorus removal. The results indicate that the anaerobic stage can promote the formation of biofilm on the fillers to remove pollutants, thus achieving higher aquaculture sewage treatment efficiency.
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