The process is characterized by an early integration equipment is "small but perfectly formed", seemed more bloated. With the application and development of the integration of the device, the process continues to be improved and become more compact and improve the processing efficiency. The process of improving the main focus on improving efficiency, reduce the area and reduce energy consumption. Improved process mainly includes three aspects: the acidification tank instead of the original primary settling tank and sludge tank sewage treatment works, acidification tank and adjusting tank can be inverted. Less sludge production equipment integration, sedimentation tanks (filtration pool) of the sludge can be returned to the acidification of the pool. The role of acidification tank includes three aspects: First, Shanxi slaughter sewage treatment works, sewage organic molecules through hydrolysis acidification can be broken down into small organic molecules, improve biodegradability; biochemical pool residence time can be reduced to about 3h; acidification You can also set the pool filler to increase the concentration of acidifying bacteria; Second, return sludge concentration can enhance microbial acidification tank, but also has some biological function flocculation, flocculation and sedimentation preliminary partial suspension or colloidal contaminants and reduce subsequent biochemical Pool load; Third, return sludge under its own weight hydraulic compression while acidification tank sludge digestion can get some further reduce sludge volume; sludge acidification general pool regularly (1 year) aspiration . Acidification tank, primary settling tank and sludge tank Trinity, which greatly reduces the footprint, improve the processing efficiency. Small sewage purification anaerobic digester technology applied at room temperature, according to the "multi-stage gravity, gradual degradation" principle, the establishment of Ⅰ grade level facultative anaerobic digestion --Ⅱ new filtration device. It is filtered by the anaerobic fermentation and digestion of sewage reflux and fillers such as technology components. Most sewage after the anaerobic fermentation of organic produce biogas, sewage enters after fermentation and digestion filtration tank, partially decomposed organic matter further degradation. Settling down part of organic matter and the activated sludge is returned to the anaerobic fermentation anaerobic fermentation tanks to improve environmental effects of Shanxi sewage treatment works, will achieve the purpose of the purification process. Sewage purification digesters is a small decentralized wastewater treatment system, with less investment, good effect, run without energy support and so on. The technology has been widely used in Lianshui, East and other places, a more significant effect Shanxi chemical sewage treatment works _ Run-green (certified) _ sewage treatment works by Shanxi Run-Environmental Engineering Limited. Run-Environmental Engineering Co., Ltd. Shanxi (www.sxruntong.com) is a leader in Taiyuan, sewage treatment equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Run-environmental leadership with the staff warmly welcome all inquiries negotiations to create a better environment Runtong future.