环境工程学报2024，Vol.18Issue(3)：686-695,10.DOI:10.12030/j.cjee.202310160
模块化生物滤池-人工湿地对农村生活污水的处理
Treatment of rural domestic wastewater by modular biological filter and constructed wetland
摘要
Abstract
The commonly used rural sewage treatment process of Anaerobic Tank+Aerobic Biological Filter was taken as the research object,the aerobic biological filter was designed modularly and combined with constructed wetlands.The filter effluent flowed into the subsurface flow constructed wetland.The removal effect of CODCr,NH4+-N,TN and TP was investigated through the operation parameters regulation,which made it a new combined treatment device for rural domestic sewage.The experimental results show that when the reflux ratio of aerobic biofilter was 300％and the interval of water distribution was 2 min∶8 min,NH4+-N,TN,COD and TP in the effluent of the combined process met the water quality requirements in the first-class A standard of Discharge Standard of Water Pollutants for Rural Domestic Sewage Treatment Facilities(DB32/3462-2020).Microbial community analysis at different heights from the top of filter bed reveals a diverse microbial composition within the filter,which was primarily dominated by the Proteobacteria and Firmicutes phyla.Microbial analysis and redundancy analysis at the genus level suggests that nitrogen removal primarily occurred in middle and lower part of the filter bed.关键词
农村生活污水/模块化生物滤池/生物脱氮/微生物群落Key words
rural domestic sewage/modular biofilter/biological nitrogen removal/microbial community分类
资源环境引用本文复制引用
张恒熙,聂正鑫,刘燕青,杨珂,李先宁..模块化生物滤池-人工湿地对农村生活污水的处理[J].环境工程学报,2024,18(3):686-695,10.基金项目
农村生活污水精准化治理及信息化监管技术研究与科技示范(BE2021619)(重点项目) （BE2021619）
