Its main biological treatment structure adopts high-efficiency and low-consumption air blast microporous aeration annular biochemical tank, and adopts the first modern sludge treatment workshop with indoor sludge storage room in China. The sewage treatment adopts the secondary biochemical treatment process of the improved continuous annular biochemical pool activated sludge process, and the sludge dehydration adopts the centrifugal concentration dehydrator scheme, and the main process equipment is imported from abroad. The treated water quality meets the first-class B standard in GB 189 18-2002.