There are many integrated sewage treatment equipment, the more ideal first push conduction aeration biofilter. Conductive aeration biofilter so that the sewage in the same treatment tank, complete two aeration, two precipitation, two filtration, to solve the other sewage treatment requires four pools to complete the process, especially in the continuous water intake conditions, the realization of intermittent aeration, activated sludge reflux, the entire operation is not idle, and the advantages of its more traditional treatment methods are more prominent, the treatment effect is particularly remarkable. In August 2009, it was listed as "innovation project" by the Ministry of Science and Technology of the People's Republic of China; in December 2009, it was listed as "environmental protection technology catalog encouraged by the State" by the Ministry of Environmental Protection of the People's Republic of China; in May 2010, it was reviewed and recognized by the Ministry of Science and Technology of the People's Republic of China, the Ministry of Environmental Protection of the People's Republic of China, the State Ministry of Commerce, the State General Administration of Quality Supervision, Inspection and Quarantine. May 2010, by the Ministry of Science and Technology, the State Ministry of Environmental Protection, the State Ministry of Commerce, the State General Administration of Quality Supervision, Inspection and Quarantine review recognized as a "national key new product"; in July 2012, the State Ministry of Environmental Protection is listed as the twelfth five-year plan period, "the State encourages the development of environmental protection technology". Conductive aeration biofilter fully draws on the aeration biofilter method, contact oxidation, biofilm method, interstitial aeration method, artificial fast filtration method, sedimentation and separation method, nitrification and return to the nitrification method, fast filtration of water and other eight design techniques, and combined with the secondary or tertiary wastewater treatment process developed by the sewage treatment process, new technology. 2005 to obtain the national patent, patent number: ZL200420033672.4. Conductive aeration biofilter in China's Beijing, Shandong, Hebei, Guizhou, Shanxi, Sichuan, Inner Mongolia, Heilongjiang, Jiangsu, Jilin, Henan, Hubei, Tianjin, Xinjiang and other places there have been examples of engineering cases, cases related to the life of the sewage treatment, hospitals, chemical industry, slaughtering, food, linen, alcohol, pharmaceuticals, vegetables, and other areas of sewage treatment. A large number of applications have proved that: the effluent water quality CODcr is generally below 20mg/L, the lowest 5.95mg/L; BOD5 is generally below 10mg/L, the lowest 3.50mg/L; SS is generally below 20mg/L, the lowest 6.55mg/L.