Summary description： Baicaowa emergency sewage treatment project uses pwt-a-500 intelligent assembly integrated equipment independently developed by Huayu brilliant to comprehensively treat domestic sewage from baicaowa village and surrounding communities. Using 10 sets of pwt-a-500 equipment, the effluent quality meets the B emission limit in the integrated discharge standard of water pollutants in Beijing (DB11 / 307-2013) and the surface water discharged from the village sewage treatment station Requirements of pollutant emission limit a.