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Mineralogical composition of mining wastes deposited in voluminous tailing impoundments around the world is the key factor that controls retention and release of pollutants. Here we report geochemical and mineralogical investigation of one tailing impoundment from Slovakia. Ore deposit RudЕ€any was exploited from the end of 19th century and at 1963 the ore started to be extracted by flotation process (barite, siderite and sulfides). Waste after flotation was deposited into one tailing impoundment, which carries ap...

Slovak republic committed to implement into legislative direction of European parliament and European Council 2006/21/ES from March of 15th of 2006. The direction contains conditions about disposal with wastes of mining industry, which changes and adds direction 2004/35/ES. This legislative required creation of complex evaluation methodology of different types of mining wastes. Tailing pond represents area for permanently or temporary deposition of mainly hydraulically consigned mud/sediment (waste). Consigned mud...

The processes of weathering and dissolution of the impoundment sediments have a significant impact on mobility and availability of trace elements such as arsenic and zinc. They can become dangerous sources of contamination for the surrounding ecosystem. The focus of this study is coal ash impoundment near the village Po\vsa, the drainage water contaminating surface waters and sediments of the Kyjov Brook and Ondava River. Results of chemical analysis show significant contamination by arsenic and zinc. Maximum conc...

Main aim of this study is characterization of environmental contamination in surrounding of abandoned Sb-deposits in Slovakia by toxic elements as result of longtime mining activity. Main scientific interest is focused on migration of toxic elements in soil profile, their sources and bindings on Fe-oxyhydroxides or other natural sorbents, possibility of input to aquatic systems in studied localities. Results of chemical analyses of soil samples showed large-scale contamination of soil profiles in studied localitie...

Sb-mineralization had been exploited in many localities in Slovakia. Contamination of environment by Sb, As and other heavy metals is specific problem of Slovak mining regions. Natural background for groundwater in Slovakia was appointed to 1 $\mu$g/l for Sb and 5 $\mu$g/l. Two localities Poproc (in eastern part of Slovakia) and Dubrava (in The Low Tatras) are abandoned Mining areas where the stibnite ores had been exploited for many years. These areas represent high potential environmental risk because of transpo...

Environmental large-scale contamination in surrounding of abandoned Sb-deposits in Slovakia by toxic elements (Sb, As, Zn, Pb, Cu...) as result of long-time mining activity is still undiscovered field. Surroundings of abandoned antimony deposit Popro\vc bear high concentrations of toxic contaminants mainly of sulfide relative minerals. Pollution resulting from long-time mining activity was observed in area adjacent to adit Agnes showing Sb concentrations within values 4 700 – 10 000 mg.kg-1 and maximum As concen...