>Magister Scientiae - MSc / Coal-fired power stations produce large volumes of coal combustion residues (CCRs), which
are disposed of in hold ponds or landfill sites. These ash storage facilities are limited in space
and are approaching the end of their capacities, thus additional land is required for extensions.
If new land is not sourced, power plants will be forced to cease operations, resulting in
increased expenditure costs and environmental liability. A proposed disposal solution is to
backfill opencast coal mines with CCR monoliths. However, there is limited knowledge on the
hydraulic behaviour of CCRs in an opencast coal mine environment. This leads to an inability
to assess this applications feasibility and determine whether this activity will have a positive,
negligible or negative effect on groundwater quality. This study aims to address this gap in
knowledge by assessing the flow and transport properties of CCRs under numerous theoretical
backfilling conditions.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/7853 |
| Date | January 2020 |
| Creators | Vicente, Annalisa Sarga |
| Contributors | Nel, Jacobus, Kanyerere, Thokozani |
| Publisher | University of Western Cape |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Rights | University of Western Cape |
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