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The Influence of Drainage Wells Barrier on Reducing the Amount of Major Contaminants Migrating from a Very Large Mine Tailings Disposal Site

Robert Duda
2014 Archives of Environmental Protection  
The subject of the research is one of the largest World's mine tailings disposal sites, i.e. Żelazny Most in the Legnica-Głogów Copper Mining District (south-western Poland), where fl otation tailings are poured out after copper ore treatment. The protective hydraulic barrier made of 46 vertical drainage wells was characterized and evaluated in view of reduction of major contaminants (Cl, Na, SO 4 , Ca) migrating from the facility to its foreground. The effi ciency of groundwater protection was
more » ... ater protection was determined on the basis of a new approach. In applied method the loads of characteristic and commonly recognizable compounds, i.e. salt (NaCl) and gypsum (CaSO 4 ) were calculated, instead their chemical components. The temporal and spatial variability of captured main contaminants loads as well as its causes are discussed. The paper ends with the results of effi ciency analyses of the barrier and with respect to the predicted increase in contaminant concentrations in the pulp poured out to the tailings site.
doi:10.2478/aep-2014-0041 fatcat:rgxoecstoze3lpms4hla7jd3qu