The so-called life native city sewage is discharged directly or untreated industrial waste water treatment Luliang coal, using the method of the present stage is raw sewage directly into the sewage source heat pump system, a small amount of electricity consumed in the case of city buildings indoor cooling and heating. Wastewater reuse has several technical difficulties to be overcome: Inner Mongolia coal mine water clogging, corrosion, heat transfer efficiency. After the urban sewage directly into the water heat exchanger performed in exchange for the transfer of heat to the interior from water source heat pump inside the acting. On urban wastewater reuse, the advantages are: energy saving, pollution-free. The main features are the following: 1, 2 can be buried, automatic control under the surface, without personnel management 3, no sludge return 4, simple operation, easy maintenance 5, low noise, no smell 6, long life and here we a brief introduction to the hospital sewage treatment equipment dosing device making the purchase should be noted: 1, user dosing device selection, the first dosage amount of the solution according to the system needs to determine the selection of specifications, according to dosing, determine investment plus the way; 2, according to need to select the material dosing device every part of the metering pump models or parameters for the drug plus; 3, a piston or diaphragm metering pump; 4, metering pump flow and pressure; 5, 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. Shaanxi coal mine water, mine water treatment, environmental protection provided by the Shanxi Run-Run-Environmental Engineering Limited. Run-Environmental Engineering Co., Ltd. Shanxi (www.sxruntong.com) strong, credible, in Taiyuan, Shanxi sewage treatment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Runtong into the brilliant green and you work for a better future!