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Prediction of how different management options will affect drainage water quality and quantity in the Mpumalanga coal mines up to 2080
Expanded Title:Mainly available information was used to predict how a number of management interventions may change the quantity and quality of water draining from Mpumalanga coal mines by 2080. The ACRU-Salinity model indicated that the increased recharge associated with mining can significantly increase the available water in the area. The Water Resource Planning Model indicated that mine water can contribute 65 to 100 ML/d to meet growing future water demands of local municipalities. Water treatment was found to be the only management option that will be able to improve water quality within Witbank and Middelburg Dams to RWQO levels. Soil covers can significantly reduce recharge and thus the volume of water that needs treatment. The associated reduction in recharge, furthermore, delayed the onset of decant and the need for treatment. Relatively small sums of money have to be set aside now to cover the closure costs in 40 or 50 years’ time.
Date Published:26/04/2011
Document Type:Research Report
Document Subjects:Drinking water - Water treatment, Mine water - Impact prediction, Mine water - Mine water treatment
Document Keywords:Engineering, Environment, Pollution control, Water Quality
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
WRC Report No:1628/1/11
ISBN No:978-1-4312-0108-2
Authors:Coleman TJ; Usher B; Vermeulen D; Lorentz S; Scholtz N
Project Leader:Coleman T
Project No:1628/1/11
Originator:WRC
Organizations:University of KwaZuIu-Natal
Document Size:8 378 KB
Attachments:1628 Summary .pdf
1628 Table of Contents .pdf
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