Control measures: the project adopts the contact oxidation process, the bath water, toilet, laundry, balcony, etc in after entering the slag pool and adjust the trap, the lift pump to contact oxidation pool, in the contact oxidation pool after full reaction, gravity wastewater to precipitation pool, by gravity separation out of clear water, after chemical phosphorus removal, disinfected into recycling pool. The process has the advantages of strong ability to adapt to hydraulic load variation, less sludge, easy maintenance and management