First, the district sewage treatment facilities introduce integrated residential area is a relatively independent, residential sewage is different from urban sewage, sewage category it belongs to, changes in water quality and quantity of its large concentration of pollutants is generally lower than in urban sewage, wastewater biodegradability good, small processing difficulty. According to the relevant environmental standards, the district must set up a separate sewage treatment facilities, schools, sewage contains many harmful substances, so the need to go through a certain process to efflux. Green Day Environmental adopt international advanced biological treatment process, summarize operating experience in domestic and sewage treatment plant on the basis of combining their research and engineering practice, the design of a sewage treatment plant community integration. Design residential sewage treatment is mainly used now more mature biochemical treatment technology contact oxidation method, generally consisting of a total of six parts: (1) the primary settling tank (2) contact oxidation pond (3) secondary sedimentation tank (4) pool disinfection, disinfection unit (5) sludge tank (6) Fan Room, wind turbines, by addressing the above process, to ensure that water can discharge standards. Second, the district sewage treatment equipment integration Scope This equipment is suitable for residential areas, hotels, restaurants, nursing homes, schools, hospitals, villages, towns, railway stations, airports, port terminals, ships, factories, mines, military, tourist spots , and other scenic areas similar to the sewage produced by a variety of wastewater treatment. Three, one, the entire processing system integrated residential sewage treatment equipment features easy to manage, reliable system has been stable in the water within the national standard level standard; 2, high degree of automation and cost savings; 3, unlimited amount of sewage, flexible, can be used individually, but also use more than one joint; 4, the device can be buried in the ground, above the device for the green, saving floor space; 5, the use of glass, steel, carbon steel, stainless steel corrosion structure, corrosion resistant, excellent anti-aging properties, long service life of 15 years.