At present, the technology and process of coal mine sewage treatment in China are relatively backward, and some mines with poor production conditions even lack sewage treatment links. The recycling rate of water resources is low, which wastes resources and causes pollution to the environment. The development of technology has reached the stage of efficient water purification through magnetic loading, solving the key difficulties in coal mine water purification treatment. It is one of the few water purification technologies that can directly operate underground. This technology was included in the 2012 National Key Energy saving Technology Promotion Catalogue by the National Development and Reform Commission. The impact of magnetic coagulation wastewater purification technology on coal mine water treatment in China is as follows:

The magnetic coagulation wastewater purification technology directly achieves mud water separation underground and clear water up to the well, effectively saving energy. The separated coal slurry has a low moisture content and can be directly filtered and sold, effectively reducing mining pollution while directly generating economic benefits, bringing technological innovation to mine wastewater treatment.

1. Adopting full underground treatment, saving land and energy, without considering winter antifreeze measures, achieving industrial reuse and standard emissions

2. All electrical components meet the safety and explosion-proof requirements of coal mines

3. Treating coal mine water from the source thoroughly solves the problem of dredging underground water storage tanks, maximizes and ensures the effective storage capacity of underground water storage tanks, and is beneficial for underground safety protection

4. The entire equipment adopts fully automated control, with simple operation, convenient maintenance, high degree of automation, stable and reliable operation

5. Improved the working environment of the underground water storage central pump room system, reduced the load on the lifting pump, minimized pipeline wear, and extended the service life of the central pump room

6. Coal slurry is directly dehydrated underground and transported to the well, achieving maximum comprehensive utilization

7. Fully utilize gravity flow, reduce system power consumption, high degree of automation, overall scientific and reasonable process, energy-saving and environmentally friendly

8. The system has strong shock load resistance and can effectively cope with fluctuations in incoming water quantity and quality. The effluent is stable and can be directly used for underground production.