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Determination of the impact of coal mine water irrigation on groundwater resources
Expanded Title:The research has included soil water measurements, collection of in situ soil water over time, long-term laboratory studies of the leaching and attenuation properties of different soils and the impact of irrigation on acid rock drainage processes, as well as in depth determination of the hydraulic properties of the subsurface at each of these sites, including falling head tests, pumping tests and point dilution tests. This has been supported by geochemical modelling of these processes to quantify the impacts. The results indicate that many of the soils have considerable attenuation capacity and that in the period of irrigation, a large proportion of the salts has been contained in the upper portions of the unsaturated zones below each irrigation pivot. The volumes and quality of water leaching through to the aquifers have been quantified at each site.
Date Published:24/04/2007
Document Type:Research Report
Document Subjects:Mine water - Impact prediction, Mine water - Mine water treatment
Document Keywords:Ground Water
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
Authors:Vermeulen PD; Usher BH; van Tonder GJ
Project Leader:P.D. Vermeulen, B.H. Usher and G.J. van Tonder
Project No:SP 60
Organizations:COALTECH 2020
Document Size:3 624 KB
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