Summary description： The design daily treatment capacity of the sewage treatment station of Liulihe Cement Plant's family community is 500 tons. The pwt-a-500 type equipment independently developed and produced by Huayu brilliant is adopted. The anoxic + aerobic + MBR process is adopted to solve the sewage discharge problem of 2500 people in the villa area, so as to avoid the direct discharge of sewage into the Dashi River and cause environmental pollution. The effluent of the equipment can meet the IV water standard of surface water environment, which is better than the national "comprehensive discharge standard of pollutants for municipal wastewater treatment plant". The effluent collection and reuse pool is used for greening and spraying in residential area and plant area.