偏碱性矿井水演化过程中的水岩作用-地球科学与环境学报.PDF

30 2 No .2 Vol .3 0 2 0 0 8 6 　Journal of Earth Sciences and Environment 　 Jun.2 0 0 8 白国良, 梁　冰 (, 123000) :、, , , 。 : 7, 。 , , 。 。 , 。 :;;;; :P64 1.3;X142　:A　:1672-6561(2008)02-0192-05 Water-Rock InteractionDuringEvolution of Alkalescent Coal Mine Drainage BAI Guo-liang, LIANG Bing (School of Mechani cs an d Eng ineeri ng , L iaoni ng Techn ica l Uni v er sity , F u x in 123000, L i aon ing , Ch ina) Abstract:Because f resh w ater resource is relatively shorter in China and the w ater resource has een polluted in certain degrees y the coal mining, the w ater-rock interaction during the evolutiont of the alkalescent coal mining drainage in the coal mining condition of Fuxin mining areas is studied according to the principle of hydrogeology and hydrogeochemistry.The results show that the alkali properties of the rock and low sulfur content of coal make drainage pH is igger than 7, that show s alkalescent.The alkalescent condition reduces the mass concentration of iron ions and fastens the nitration reaction of ammonia nitrogen, and leads to the concent ration of nitrate.It is though t that the property of drainage may e the main reason that fluorin ions concentrate eyond the standard.Therefore the rock mass geochemistry characteristic is the main reason that forms the alkalescent coal mine drainage in this area, and w ater-rock interaction has an important impact on the component change of the coal mine drainage. Key words:alkalescent coal mine drainage;w ater quality evolution;hydrogeology;geochemistry;water-rock interaction , 0 　 [ 1-2]