Project Practice of Mine Water Reuse and "Zero Release" in Wanli No.1 Coal Mine

In order to realize the mine water reuse and "zero release" project, Wanli No.1 Coal Mine made the planning and design of its underground mine water circulation system. However, according to the original plan, there were safety risks and it could not meet the requirements of mine wastewater treatment and reuse in implementation process. Therefore, the original project planning needs to revise. 42301 goaf, 42113 goaf and 42103~42108 goaf were as a whole storage area in the new plan construction. Superiorities of the new plan were proved by water injection tests and water quality inspection.