北京市通州区农村生活污水排放特征

Characteristics of rural domestic sewage discharge in Tongzhou district of Beijing

通州区地处北京东西发展轴和东部发展带的节点位置为北京城市副中心,近年来,随着通州区农村经济结构的转变,农村生活污水排放量不断加大,对农村地区居住环境和居民健康造成了越来越大的威胁。本研究通过已有资料与文献收集,通过对现场进行调研、取样分析等方式对北京市漷牛片区农村生活污水排放进行1年期调查,探究漷牛片区村庄居民生活污水排放现状与分布规律。结果表明,该区域村落生活污水水质指标平均值为pH7.95,COD 261.285mg/L,总氮26.105mg/L,氨氮26.225mg/L,硝氮1.688mg/L,总磷3.206mg/L,总悬浮固体35.081mg/L,COD浓度水平偏高,TN,TP相对浓度偏低,片区村落污水整体为低浓度型,在村落明渠污水为中等浓度型,整体污水有机污染严重,TP,TN浓度偏低。

Tongzhou District is located in the East-West development axis and the East Development Zone of Beijing.In recent years,with the transformation of rural economic structure in Tongzhou District,the discharge of rural domestic sewage is increasing,which poses a growing threat to the living environment and residents’health in rural areas.In this study,through the collection of existing data and literature,through on-the-spot investigation,sampling analysis and other methods,we conducted a one-year investigation on the rural domestic sewage discharge in Funiu district,Beijing,to explore the current situation and distribution law of the domestic sewage discharge of the village residents in Funiu district.The results show that the average value of domestic sewage quality index in the area is ph7.95,cod 261.285mg/L,26.105mg/L of total nitrogen,26.225mg/L of ammonia nitrogen,1.688mg/L of nitrate nitrogen,3.206mg/L of total phosphorus,35.081mg/L of total suspended solids,high concentration of COD,low relative concentration of TN and TP,low concentration of village sewage in the whole area,medium concentration of open channel sewage in the village,serious organic pollution of the whole sewage,low concentration of TP and TN.