Research on integrated ceramic membrane technology for recycling of mined water in underground coal mine
Water resource is an indispensable part of mine management and development.Efficient treatment of mine water can alleviate the problems of mine water shortage to a certain extent.This project proposes the process of underground ceramic membrane treatment of coal mine water for the first time,and its device design is compact and occupies 1/10 of the traditional process.The process of"coagulation sedimentation+sand filtration+ultrafiltration+reverse osmosis"and the process of"ceramic membrane filtration+reverse osmosis"were compared.The results show that the chemical oxygen demand(CODCr)concentration and NH3-N concentration are 7.2 mg/L and 0.12 mg/L respectively in the treatment of mine water by the integrated process of"ceramic membrane+reverse osmosis",which has a 100％removal effect on suspended solids(SS)and turbidity.Ceramic membrane direct filtration technology has shown a broad application prospect in the field of mine water treatment.
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