A^(2)/O-两段垂直流沉淀工艺处理农村生活污水

Treatment of rural domestic sewage by A^(2)/O-two stage vertical flow sedimentation process

以江淮地区某农村生活污水处理项目为例,介绍以A^(2)/O-两段垂直流沉淀工艺为核心的一体化设备在农村污水处理中的应用情况,以及该组合工艺流程、工艺特点和主要设计参数。实际运行结果表明,该工艺具有良好的去除效果,对COD、NH_(3)-N和TP的平均去除率分别达85.7%、96.1%、92.3%,均达到安徽省DB34/3527—2019《农村生活污水处理设施水污染物排放标准》一级A标准。该工艺简单高效,加药量少,运营方便,在农村地区分散污水处理中具有良好的应用推广前景。

Taking a rural domestic sewage treatment project in Jianghuai region as an example,the application situation of integrated equipment with A2O-two stage vertical flow sedimentation as core process for rural sewage treatment as well as the flow,characteristics and main design parameters of the said process,were introduced.The actual operation results showed that,the said process had good pollutants removal effect,the average removal rates of COD,NH_(3)-N and TP reached 85.7%,96.1%and 92.3%respectively,which met the requirement of level A grade 1 in DB 34/3527—2019 Discharge standard for water pollutants from rural domestic sewage treatment facilities of Anhui Province.The said process is characterized by simple,efficient,less reagent demand,and convenient operation,which has a good application and promotion prospect in the feild of rural dispersed sewage treatment.