Summary description： Dizhang sewage treatment project (phase I) uses pwt-a-100 intelligent assembly type integrated equipment independently developed by Huayu brilliant to comprehensively treat the domestic sewage in Dizhang village. With a set of pwt-a-100 equipment, the effluent quality meets the class I a emission limit specified in the discharge standard of pollutants for municipal wastewater treatment plant (GB18918-2002).