Browsing Institute for Groundwater Studies (IGS) by Title
Now showing items 1-20 of 108
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Acid-base potential characterisation in the Southern highveld coalfield of Mpumalanga
(University of the Free State, 2017-07)Pyrite, iron disulphide is the most common mineral in the metal sulphite and coal deposit. The oxidation of Pyrite and other metal-sulphide minerals by oxygen has a large environmental impact and plays a key role in Acid ... -
Analysis of a post-closure safety assessment methodology for radioactive waste disposal systems in South Africa
(University of the Free State, 2000-02)English: Radioactive waste in South Africa is generated through the nuclear fuel cycle and the application of radioactive materials in industry, science and medicine. The radioactive waste is presently disposed at Vaalputs ... -
Application of artificial neural networks in the field of geohydrology
(University of the Free State, 2009-03)English: Groundwater has been identified as a viable alternative for future freshwater production in South Africa. The management thereof is steadily gaining more recognition from governmental institutions. A significant ... -
Application of electroseismic techniques to geohydrological investigations in Karoo rocks
(University of the Free State, 2003-11)English: The possibility of using surface electroseismic (ES) methods for groundwater exploration in fractured Karoo rocks is studied by investigating the criteria of vertical and lateral resolution of surface ES data and ... -
Application of the Mixing Cell Model to the quantification of groundwater – surface water interaction
(University of the Free State, 2013-07)English: The significance of a reliable groundwater resource assessment is of growing importance as water resources are stretched to accommodate the growing population. An essential component of a groundwater resource ... -
Aquaponics as a productive rehabilitation alternative in Mpumalanga Highveld coalfields
(University of the Free State, 2016-03-11)The Mpumalanga Highveld Region is commonly known for its coal mining activities, especially surface mines. South Africa is still reliant on coal as its main energy source. A dilemma identified is that most of the coal ... -
Aquifer parameter estimation in fractured-rock aquifers using a combination of hydraulic and tracer tests
(University of the Free State, 2002-08)English: Water resources in South Africa are already being stressed and the country is slowly becoming a water-scarce country. This presents a challenge to all water resource managers to ensure that the basic water needs ... -
Aquifer test interpretation with special emphasis on the drawdown evaluation for wells within fracture networks smaller than the representative elementary volume (rev)
(University of the Free State, 2002-05)Fractured aquifers are characterized by the fact that most of the water flows along fractures, faults, open bedding planes, or other geological features. These features are embedded in a matrix that has either porous ... -
Assessing the feasibility of constructing a groundwater contaminant fate and transport model for an LNAPL affected fractured rock aquifer
(University of the Free State, 2011-05)English: Groundwater contamination as a result of Light Non Aqueous Phase Liquid (LNAPL) releases into the subsurface is a widespread occurrence across South Africa which threatens current and future water resources within ... -
Assessment of groundwater resource in the Tsineng area, Northern Cape: a geophysical survey perspective
(University of the Free State, 2016-07)English: In this study the groundwater resource the in Tsineng area, Northern Cape was assessed in terms of the volumes of water that may be sustainably abstracted from the aquifer system, and the quality of the available ... -
Assessment of the groundwater potential of the Middel Kop/Appleby aquifer, Stella District, Northwest Region
(University of the Free State, 2001-08)English: The importance of groundwater is strongly reflected in the new South African water policy and legislation. All water resources, including groundwater, are now seen as an indivisible asset, with the National ... -
Baseline study of Kendal Power Station
(University of the Free State, 2011-05)Abstract not available -
Biobarrier formation for hydraulic control in groundwater remediation in South Africa
(University of the Free State, 2006-11)Abstract not available -
Characterisation and management of a LNAPL pollution site along the coastal regions of South Africa
(University of the Free State, 2009-11)English: The project site experienced LNAPL spills in the recent past. In the characterisation of the site it was necessary to investigate the physical properties of the vadose and saturated zones. It was found that ... -
Characterisation of the deep aquifers of South Africa - the Karoo Supergroup and Table Mountain Group
(University of the Free State, 2019-06)Abstract not available -
Characterisation of the dolomitic aquifer in the Copperbelt Province, Northern Zambia
(University of the Free State, 2005-02)English: External factors that influence the aquifer characteristics of, and sustainable yield from, the dolomitic aquifer include topography, rainfall, surface drainage, evapotranspiration, plant growth, geology, and ... -
Comparing model calculated groundwater volumes with alternative methods in a mining enviroment
(University of the Free State, 2012-09)English: A new opencast coal mining operation is proposed in the Belfast region in Mpumalanga, South Africa. This proposed operation is the study site that was investigated in this thesis. The Belfast opencast operation ... -
Composition and performance of multi-layer liner systems to inhibit contaminant transport in a fly-ash dump
(University of the Free State, 2013-07)English: The engineering properties of a South African class F fly ash were studied as a potential base liner for a dry coal ash dump. In order to increase the unconfined compression strength, lime and gypsum were added ... -
Coupled flow in groundwater systems : the study of bulkflow parameters
(University of the Free State, 2011-08)This study was aimed at studying bulkflow parameters in groundwater systems at littoral zone of the Modder River. In this thesis, all the aspects were synthesised and exemplified by incorporating a multidisciplinary ... -
A critical review of recharge estimation methods used in Southern Africa
(University of the Free State, 2003-12)English: A new stable isotope-based technique, the Modified Amount Effect (MAE) Method, was developed during this investigation. This technique provides insight into episodic recharge processes by estimating the proportion ...