Materiały zasypowe do likwidacji szybów górniczych / Materials used in liquidating mining shafts

In Poland, in accordance with the applicable legal requirements, the shaft is dismantled by filling it with material selected for the geological conditions, taking into account the factors determining safety. When selecting materials used in liquidating mining shafts, one should also take into account their impact on the natural environment. The publication presents the results of laboratory tests on the leachability of soluble substances from materials used in liquidating mining shafts. The test of leachability of soluble substances was carried out with the use of distilled water and mine water. The conducted research showed that the leachability of soluble substances contained in the tested materials with mine water shows that high salinity of mine waters can have an aggressive dissolution and leaching of chemical compounds, which can cause groundwater contamination.

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This study was performed within the TEXMIN Project (The impact of extreme weather events on mining operations), which received funding from the Research Fund for Coal and Steel (RFCS) under Grant Agreement no 847250 and from the Polish Ministry of Science and Higher Education under Contract No 5042/FBWiS/2019/2.