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Showing 1 to 13 of 13 for “"Secunda"”.
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Characterization and chemical speciation modelling of saline effluents at Sasol Synthetic Fuels Complex-Secunda and Tukuta power station
The study shows conclusively that brine composition and concentration is highly variable at these South African power utilities and processes such as RO, contact with ash and CO2 ingress can have an impact upon the overall brine quality. Aq.QA was found to be a more accurate tool for classifying …
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On urban fear: privilege, symbolic violence, topophobia: the everyday experiences of middle-class women in Secunda, South Africa
… women's topophobia in the new town of Secunda (with a particular focus on symbolic violence). In Lefebvre's 'terrorist societies' fear becomes latent as citizens seek to maintain status quos which maintain systems of privilege. I demonstrate that one such system is white privilege. …
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Phenotypic Plasticity within the Native Perennial Grass, Poa secunda (Sandberg bluegrass), an Important Component of the Western United States Sagebrush Grassland Vegetation
… I investigated the following questions about Poa secunda, a common native perennial grass in sagebrush ecosystems: 1) Can P. secunda respond plastically to directly-manipulated nutrient availability? 2) Does P. secunda respond to the presence of B. tectorum? and 3) Are these plastic responses …
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CO2 sequestration using brine impacted fly fish
… the above mentioned input parameters. The fresh Secunda FA of various size fractions was characterized morphologically using scanning electron microscopy, chemically using X-ray fluorescence and mineralogically using qualitative X-ray diffraction. The carbonated solid residues on the other hand …
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Experimental improvement of flyash as a growth medium for plants through addition of selected solid wastes
… from the sulphur recovery plant at the SASOL' s Secunda petrochemical production facility and Catpoly, a spent catalyst consisting of phosphoric acidimpregnated diatomaceous earth, also obtained from SASOL's Secunda operation.
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Invasive plant influence on the native grass community of the White Lake Basin, British Columbia
… (Hesperostipa comata), Sandberg bluegrass (Poa secunda), and sixweeks fescue (Vulpia octoflora), indicating potential for seeding in disturbed areas prone to cheatgrass.
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An investigation into the use of smectitic clay soil for the containment and treatment of petrochemical waste
… dams, adjacent to a petrochemical plant at Secunda, South Africa. There is growing interest at the plant in utilizing soil for cost-effective waste containment and treatment. The objectives of this study were twofold: firstly, to determine the permeability of the Rensburg soil with respect …
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Mineralogical characterization of South African mine tailings with aim of evaluating their potential for the purposes of mineral carbonation
… close of 70% of the annual CO₂ produced at Secunda, South Africa. A mineralogical investigation into the mineral carbonation potential of mine tailings was conducted using samples from seven mining companies. Four of the mining operations considered (Impala, Rustenburg, Amandelbult and …
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Reactive power compensation, system and voltage stability of an industrial network with short circuit limiting coupler
This thesis investigates Sasol Three (Secunda) system's needs for reactive power compensation under voltage and transient stability conditions. A short circuit limiting coupler is designed and the transient and voltage stability studies are performed with a short circuit limiting coupler (SLC) …
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Employee Perceptions of Performance Appraisal Systems: Causal Determinants of Fairness, Accuracy, and Acceptability
<p>The purpose of this research was to develop an initial model of employee perceptions of performance appraisal systems which would integrate available literature and provide a point of departure for future research endeavors. To accomplish these goals, this study had three objectives: (1) …
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Ontleding van kleinsakemislukkings
… business owners in the geographical area of Secunda and Bethal took part in the study. The telephone directory was used as a sampling frame for the group of 30 small businesses still practising the trade. A systematic sample was drawn from every second small business selected from the list. A …