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COAGULATION AND CLARIFICATION +ULTRAFILTRATION AND REVERSE OSMOSIS PROCESS TO TREAT MINE DRAINAGE WATER IN IANCHI COAL MINE

ZHAO Hou-bin;CUI Dong-feng;XU Xi-bo;Department of Electromechanical and environmental protection,Yanzhou Mining Co.,Ltd;Hangzhou Institute for Environmental Protection,CCTEG;  
In order to improve processing capability and effluent quality of mine drainage water treatment system, the system has been upgraded in Tianchi coal mine. The process combined coagulation with clarification is adopted in the purification treatment subsystem,which ensures the purified water quality meeting the emission standards; and the process combined ultrafiltration with reverse osmosis is adopted in the advanced treatment subsystem,which guarantees the last effluent quality satisfying the drinking water standard. This paper detailedly introduces process choices and flow diagram, main facilities and equipments, and economic benefits. The operation practice shows that the engineering has many characteristics of reasonable process, stable operation,high degree of automation, simple operation and maintenance, and good application prospects.
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