Sökning: "Thomas Pabst"
Hittade 3 avhandlingar innehållade orden Thomas Pabst.
1. 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
2. Co-disposal of waste rock and lignite fly ash to mitigate the environmental impact of coal mining
Sammanfattning : Waste rocks (WRs) from coal mining and fly ash (FA) from coal combustion were studied to determine the potential of the WRs to generate AMD, FAs to neutralise it and estimate their impacts on environment. The ultimate goal was to develop a methodology based on co-disposal to mitigate the environmental problems associated to both wastes. LÄS MER
3. Investigation of Suffusion in Glacial Till Dam Cores : Testing methods and critical hydraulic gradients
Sammanfattning : Suffusion is an internal erosion mechanism that occurs in embankment dams when fine grained particles in the dam core are washed out by seepage. Initiation of internal erosion depends mainly on three major factors: grain size distribution of the soil, stress conditions and hydraulic gradient; whilst its continuation depends on the properties of the filter. LÄS MER