With the continuous development of mineral resources in our country, the problem of mine water is becoming increasingly prominent. Mine water not only affects mine safety production, but may also cause pollution to the surrounding environment. In order to solve this problem, the technology of mine water prevention and control is constantly upgrading, from source control to comprehensive management, providing a scientific and effective solution for mining enterprises.
Mine water refers to the wastewater that emerges from underground during the mining process of mineral resources such as coal mines and metal mines. The hazards of mine water mainly manifest in the following aspects:
Safety hazard: Excessive accumulation of mine water may lead to mine flooding, posing a threat to the safety of miners' lives.
Environmental pollution: Mine water contains a large amount of harmful substances. If discharged directly without treatment, it will cause pollution to soil, surface water, groundwater, etc.
Resource waste: Mine water contains usable resources, and if not recycled, it will result in resource waste.
Upgrading of mine water prevention and control technology
Source control technology
(1) Mine dewatering: By arranging drainage holes, the underground water within the mine area can be drained in advance to reduce the inflow of water into the mine.
(2) Curtain interception: Install anti-seepage curtains around the mine to intercept groundwater flowing into the mine and reduce water inflow.
Underground prevention and control technology
(1) Optimization of underground drainage system: Reasonably arrange drainage facilities, improve drainage efficiency, and reduce mine water inflow.
(2) Grouting and water blocking: Using grouting technology to block mine cracks and channels, reducing mine water inflow.
Well prevention and control technology
(1) Mine water treatment: Treat the wastewater emitted from the mine to achieve standard discharge. The processing methods include physical methods, chemical methods, biological methods, etc.
(2) Mine water recycling: The treated mine water is used for mining production and domestic water, achieving water resource recycling.
Comprehensive governance technology
(1) Mine water environment monitoring: Establish a mine water environment monitoring system to real-time monitor the dynamics of mine water and provide data support for prevention and control work.
(2) Ecological restoration: Ecological restoration of land contaminated by mine water to restore soil function.
Development trend of mine water prevention and control technology
Green and environmentally friendly: Developing non-toxic and harmless prevention and control materials to reduce the impact on the environment.
Intelligence: Utilizing technologies such as the Internet of Things and big data to achieve intelligent management of mine water prevention and control.
Integration: Organically combining multiple prevention and control technologies to form a complete mine water prevention and control system.
Personalization: Develop targeted prevention and control plans based on the hydrogeological conditions of different mines.
The technology for preventing and controlling mine water has been upgraded from source control to comprehensive management. Mining enterprises should fully recognize the importance of mine water prevention and control, actively adopt new technologies and methods, and contribute to the development of mineral resources and environmental protection in China. Let's work together to create a better future for green mines!
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