Sökning: "acid mine drainage"
Visar resultat 21 - 25 av 41 avhandlingar innehållade orden acid mine drainage.
21. Green liquor dregs-amended till to cover sulfidic mine waste
Sammanfattning : The mining industry produces massive amounts of waste that without treatment and in contact with oxygen can result in acid rock drainage (ARD) and increased leaching of metals. In Sweden, the common way to manage the mine waste after closure is to apply a dry coverage on top of the waste deposition. LÄS MER
22. Fractionation of Cu and Fe isotopes in metal-rich mine sites : biotic and abiotic processes
Sammanfattning : After mineral exploitation the residual grinded and milled material, rich in sulphide minerals and heavy metals, is often left exposed to the atmospheric variables. This weathered mine waste material can lead to the formation of acid mine drainage (AMD) which has negative effects to the environment. LÄS MER
23. Phytostabilization of mine tailings covered with fly ash and sewage sludge
Sammanfattning : Establishing plant communities is essential for the restoration of contaminated land. As potential cover materials, fly ash and sewage sludge can prevent formation of acid mine drainage from sulfidic mine waste. LÄS MER
24. Green liquor dregs as sealing layer material to cover sulphidic mine waste deposits
Sammanfattning : Waste rock and tailings generated by sulphide ore mining often contains large amounts of iron sulphides which oxidize when exposed to atmospheric oxygen and may generate acidity. In the absence of alkaline minerals to neutralize this acidity, elements including harmful heavy metals become mobile. LÄS MER
25. Effectiveness of reclamation by backfilling and sealing at Kimheden open-pit mine, northern Sweden
Sammanfattning : Reclamation of mine sites is a very recent concept on the scale of mining history. It involves the prevention or mitigation of the environmental impacts from mining, and the establishment of sustainable post-mining uses of the land. LÄS MER