Optimalizace čištění zanesené retenční nádrže důlních vod

Abstract

The retention tank of mine water, which is located under the former landfill K4 North on the plot number 475/1 in the cadastral area of Růžodol, village of Litvínov, is owned by company ORLEN UNIPETROL RPA, Ltd. Based on a lease agreement, the retention tank was used by the state enterprise DIAMO for the treatment of mine water pumped from the MR1 pit. In the retention tank, partial aerobic purification with oxidation took place and then sedimentation of precipitated metals followed, especially of iron. From the retention tank, treated mine water was discharged into the Mračný stream and the Bílina river. However the mine water from the MR1 pit is currently pumped to the Biotechnological system for mine water treatment and the retention tank would be used only in an emergency situation. The use of the retention tank is ended and it is necessary to clean it, i.e. remove the sediment.