The Treatment Process Design Of Coal Mining Water And Resource Utilization Research

The annual mine hydraulic discharge is 17.87 million Ton per year in Huainan mining area, but the utilization rate is only 44%. The large number of mining water not only pollutes the surface water and soil, but also causes a serious waste of water resources. Besides, with the deepening of coal mining, the high temperature will aggravate the extent of geothermal. How to achieve the deep mining water resource utilization, which is the major issue we have to face when to develop the industry of coal environmental protection resource utilization.Based on consuliting the relevant literature at home and abroad, Xieyi coal mine of Huainan mining area was taken for example. After its mining water source, mine hydraulic discharge and water quality characteristics were analyzed, the resource utilization feasibility was evaluated. According to these results, including mining water orthogonal coagulation experiment, single factor experiment, columnar precipitation experiment and modified filter media filtration experiment, the running parameters of structures have been determined and the reverse osmosis desalination has also been added. The optimization materialized treatment process by experimental parameters has been designed, that is regulationâ†'coagulationâ†'sedimentationâ†'filtrationâ†'reverse osmosisâ†'disinfection, and the plane and elevation have also been designed. After the background of geothermal characteristics and influence factors of Huainan mining area were analyzed, Panji mining area which the most serious geothermal was taken for example, the quality of mining water in deep coal mining was analyzed, some suggestions were provided, which used the ground source heat pump technology to achieve the deep mining hot water resource utilization. Finally, in accordance to the principles, the "drainage and supply combined, different water quality for different use" was used to design the utilization ways, and the social, economic and environmental benefits were evaluated.Figure [40] Table [20] Reference [80]...