Application Of "High-Efficient Clarifier And Gravity Valveless Filter" In The Coal Mine Wastewater Treatment

At present the rate of mine water treatment and utilization is low in our country, although some mining area improve utilization ratio, often fail to meet the drinking water sanitation standard, even though, the water treatment cost is very high. Basing on these reality situation and the water resources state in Gequan mining area, taking the coal mine wastewater for research object, hydrogeology conditions in the mining, mining water source and water quality characteristics were analyzed in this thesis. The resource utilization feasibility was evaluated. According to these results, including mining water orthogonal coagulation experiment, single factor experiment, the optimal coagulant and the optimal coagulant dose and the optimum operating condition has been designed, so the experiment bring up the optimum water treatment process.The optimal physicochemical treatment process has been designed, through the understanding of the condition of project site and outlet requirements. That is "High-Efficient Clarifier and Gravity Valveless Filter" combined process, which has been improved on the basis of traditional hydraulic circulating clarifier and gravity valveless filter, and the process is more suitable for the mine wastewater treatment. The mine water treatment process was complete description. We have done a lot of work to make the effluent can meet the national drinking water standard and can be fully utilized, for example, the arrangement of the plane and elevation, overall project design, commissioning and operation and esc.This paper, through analyses, demonstrates that the wastewater treatment process of Gequan mine is reasonable as well as the optimum coagulant and the dosage. The main process of "High-Efficient Clarifier and Gravity Valveless Filter" has solved successfully the high suspended solids mine wastewater treatment and resource issues. Through the process of investment and running cost and benefit analysis, the process which has been showed a good applicability and extension, provides references to further research on reclamation of coal mine wastewater.