净水技术2025，Vol.44Issue(4)：166-171,181,7.DOI:10.15890/j.cnki.jsjs.2025.04.020
纯膜MBBR与磁沉淀组合工艺处理村镇生活污水工程实例
Example of Combined Process of Pure Membrane MBBR and Magnetic Sedimentation for Rural Domestic Wastewater Treatment Project
摘要
Abstract
[Objective]Taking a wastewater treatment project in a village in Hubei as an example,the design parameters,treatment effects and benefits of the pure moving-bed biofilm reactor(MBBR)+magnetic coagulation sedimentation combined process for treating village domestic wastewater are analyzed,and analyzes the applicability of this combined process for treating village domestic wastewater.[Methods]The total design treatment scale of the project is 4 000 m3/d.A wastewater treatment station is been built near three village and town domestic wastewater collection points to treat the village and town domestic wasterwater at each site.According to the water quality requirements of the influent and effluent,the design adopted pretreatment+pure MBBR+magnetic coagulation sedimentation treatment process treated this wastewater.[Results]The average removal rate of chemical oxygen demand(CODCr),ammonia nitrogen and total phosphorus(TP)indices of system are reached 85.71%,80.38%and 90.82%,respectively.The main indices of designed water quality are better than the Environmental Quality Standards for surface water(GB 3838-2002).The biological process of this system uses pure MBBR.There is no secondary sedimentation tank at the back end of the MBBR tank and no sludge return device.The sludge-water separation and advanced treatment unit are completed through the magnetic coagulation sedimentation tank process.[Conclusion]This combined process has the advantages of good treatment effect,convenient operation,simple process,small footprint,low investment and low operating costs.It is not only suitable for projects such as the standard improvement and transformation of low influent ammonia nitrogen(generally,influent ammonia nitrogen is≤8 mg/L),it is also suitable for rural wastewater and other situations where incoming water ammonia nitrogen is high,and can provide design reference and case reference for high-standard treatment and reuse of domestic wastewater and dispersed wastewater in villages and towns in our country.关键词
纯膜MBBR/磁混凝沉淀/村镇生活污水/工程应用/高排放标准Key words
pure MBBR/magnetic coagulation and sedimentation/rural domestic wastewater/project application/stricter discharge standard分类
建筑与水利引用本文复制引用
彭展,谢依廷,张玥,黄世全,黎继红..纯膜MBBR与磁沉淀组合工艺处理村镇生活污水工程实例[J].净水技术,2025,44(4):166-171,181,7.基金项目
四川省科技成果转移化示范项目(2023ZHCG0052-01) （2023ZHCG0052-01）
