Summary description： The designed daily treatment capacity of Hedi town sewage treatment project is 200 tons. The pwt-a-200 type equipment independently developed and produced by Huayu brilliant is adopted, and anoxic + aerobic + MBR is adopted Process: the sewage is collected through the naturally formed ditch and part of the collection pipe network enters into the regulating pool. After being treated by the equipment, the effluent is stable and meets the national "comprehensive discharge standard of pollutants for urban sewage treatment plant", which solves the problem of scattered sewage discharge in some concentrated areas of market towns.