PROCESS FOR TREATMENT AND USE OF MINE WATER FROM ABANDONED MINE AS RETURN WATER OF METALLURGICAL PRODUCTION

摘要

A process for treatment and use of mine water from abandoned mine as return water of metallurgical production comprises stages of preliminary treatment of water in a settler, clarification of water after the treatment in the settler, treatment of water by means of reagent settling with addition of alkali solution, dehydration of sludge after settling, neutralization of water with acid solution, desalting water on a reverse osmosis plant and repeated usage of treated water. The preliminary treatment of mine water from suspended substances is carried out in the settler being partially flooded mining of the abandoned mine.