Summary description： The design daily treatment capacity of Zhaozhuang rural sewage treatment project is 30 tons. The pwt-a-30 type equipment independently developed and produced by Huayu brilliant is adopted, and the anoxic + aerobic + MBR process is adopted to meet the rural perennial sewage treatment demand and avoid direct discharge of sewage into nearby rivers along the way, causing environmental pollution. Due to the shortage of rural land demand, it is convenient to control and operate. In order to ensure the normal operation of the equipment, the semi buried equipment is adopted, and the effluent is stable, reaching the IV water standard of surface water environment, which is better than the national integrated discharge standard of pollutants for municipal wastewater treatment plant.