Ecologically advantageous method of sulphate mine water cleaning

By the present paper a characteristics of mine water produced by mining of subbituminous and bituminous coal as well as by mining of gypsum from the point of view of hydrogeology and water management is given. Principal possibilities of desulphation of such mine water by physical-chemical procedures and chemical precipitation are discussed. Development of ecologically favorable method of chemical precipitation of sulphates and its verification are described. An orienting proposal of handling of water treatment plant sludge is mentioned. Abstakt Clanek uvadi hydrogeologicke a hydrochemicke charakteristiky důlnich vod z těžby hnědeho uhli, resp. sadrovce. V navaznosti je dale uveden princip metody desulfatace těchto vod originalni metodou, vyvinutou na řesitelskem pracovisti. Podstatou teto metody je chemicke sraženi siranů kombinaci vnesených iontů vapniku a hliniku v silně alkalickem prostředi.Vznikla sraženina siranu hlinitovapenateho (ettringitu) může být technologicky využita nebo likvidovana ekologicky přijatelným způsobem. Metoda desulfatace byla vyvinuta za financni podpory Grantove agentury CR.