针对南京市六合区农村生活污水处理案例分析及方案推荐研究

Study on Case Analysis and Scheme Recommendation for Rural Domestic Sewage Treatment in Liuhe Nanjing

针对江苏省南京市六合区农村生活污水实际情况,推荐了合适六合区各街道(镇)不同农村特点的农村生活污水处理工艺,并以六合区龙袍街道某行政村为例,介绍其主要工艺流程以及运维效果。该行政村主要采用“农户三格化粪池+厌氧处理+人工湿地+生态塘净化”的生态化农村生活污水集中处理组合工艺。同时在系统建成后监测数据表明,该组合工艺出水COD、HN_(3)-N、TN和TP水质指标优于《农村生活污水处理设施水污染排放标准》(DB32/3462-2020)二级标准。

Based on the actual situation of rural domestic sewage in Liuhe District,Nanjing City,Jiangsu Province,suitable rural domestic sewage treatment processes for different rural characteristics of each street(town)in Liuhe District were recommended.Taking an administrative village in Longpao Street,Liuhe District as an example,the main process flow and operation and maintenance effects were introduced.The administrative village mainly adopted the ecological rural domestic sewage centralized treatment combined process of“three grid septic tank+anaerobic treatment+constructed wetland+ecological pond purification”.At the same time,monitoring data after the completion of the system showed that the effluent quality indicators of COD,HN_(3)-N,TN and TP of the combined process were superior to the second level standard of Water Pollution Discharge Standard for Rural Domestic Sewage Treatment Facilities(DB32/3462-2020).