This technology is a new sewage treatment process suitable for my country's national conditions, developed on the basis of the (SBR) activated sludge method. After years of testing and practical operation on domestic sewage, chemical, papermaking and other industrial wastewater, a series of valuable design parameters and experience have been obtained. This technology integrates biochemical reaction and precipitation, which are completed in the same pool. It can continuously inlet water and operate intermittently. Compared with other processes, it can increase the load by 1~2 times, save land, project investment and operating costs by nearly 30%, and achieve good economic, social and environmental benefits.