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 anaerobic fermentation of organic matter to produce biogas Luliang after mine water treatment, sewage enters after fermentation and digestion Taiyuan mine water 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 enhance the effect, will achieve the purpose of the purification process. Sewage purification digesters is a small decentralized wastewater treatment system of coal mine water treatment, with less investment, good effect, run without energy support and so on. NOTICE This technology has been widely applied in Inner Mongolia coal mine water treatment in Lianshui, the East China Sea and other places, a more significant effect here we briefly outline the hospital sewage treatment equipment dosing device making the purchase should be noted: 1, the user selected dosing device when the system is first determined according to the amount required dosing solution chosen specification, according to dosing, to determine dosing method; 2, according to the material need to select the various components of the dosing device, metering pump models or parameters for the agent added; 3 is a piston or diaphragm metering pump; 4, metering pump flow and pressure; 5, the ordering system for a few boxes of several pumps; 6, the system is controlled manually or automatically control; 7, other special requirements for dosing device . Datong Coal Mine Water _ Run-green (certified) _ water provided by the Shanxi Coal Mine 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.