Groundwater Transport of Sulphates in the Estonian Oil Shale Mining Area

摘要: The development of Estonian power engineering on the basis oil shale has caused several changes in environment. One phenomena which accompanies mining is heightened content sulphates groundwater and surface water. aim this research to give an overview water transport shale mining area find out regularity its distribution during the time. As known aquifer containing exploitable oil shale seam influenced by activities most, but also the quality upper lower aquifers can change. It very important clear up vertical different water-bearing horizons. phosphorite finished activity 1991 also included research. what extent environmental conditions have become better draw conclusions ground old closed mines for working mines for getting know how much time it will take self-cleaning of the