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Date: 2014
Type: Article
Identifier: uj:4930
Description: This paper reviews the handling, disposal, treatment of waste lubricating grease as well as its environmental impact. Lubricants require careful disposal as they contain pollutants. In response to eco ... More
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Date: 2014
Type: Article
Identifier: uj:4902
Description: Oil was extracted from spent coffee grounds using methanol. Methanol is not a popular solvent for oil extraction because of its toxicity but it is ideal for biodiesel production. The SCG was determine ... More
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Date: 2014
Type: Article
Identifier: uj:4904
Description: Non-distillation oil extraction is a process whereby the step required to distillate the solvent (alcohol) to recover residual oil and by-products is eliminated. This is achieved by cooling the extrac ... More
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Date: 2013
Type: Article
Identifier: uj:4967
Description: Waste lubricating oil is a resource that cannot be disposed of randomly due to the presence of pollutants. In response to economic problems and environmental protection, there is a growing trend to re ... More
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Date: 2013
Type: Article
Identifier: uj:4956
Description: Solid waste management (SWM) in Merafong City and Randfontein local municipalities in South Africa is a challenge that manifests itself in illegal dumpsites and unhealthy environment. In this study we ... More
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Date: 2012
Type: Article
Identifier: uj:4683
Description: Please refer to full text to view abstract
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Date: 2011
Type: Article
Identifier: uj:4708
Description: The objective of this study was to investigate the potential of acid activated South Africa clinoptilolite as an adsorbent in the ion-exchange process for the removal of cations from aqueous solutions ... More
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Date: 2011
Type: Article
Identifier: uj:4706
Description: A feasibility study for the design and construction of a pilot plant for the extraction of castor oil in South Africa was conducted. The study emphasized the four critical aspects of project feasibili ... More
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Date: 2011
Type: Article
Identifier: uj:4698
Description: The aim of this study was to investigate ammonium exchange capacity of natural and activated clinoptilolite from Kwazulu-Natal Province, South Africa. X-ray fluorescence (XRF) analysis showed that the ... More
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Date: 2011
Type: Article
Identifier: uj:4699
Description: This paper focuses on the phase equilibrium of volatile organic compounds in silicon oil chemically known as PDMS (polydimethylsiloxane) at infinite dilution. Measurements can be expensive and time co ... More
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Date: 2011
Type: Article
Identifier: uj:4705
Description: This study investigated methods of intensifying the leaching of zinc oxide ore using sulphuric acid for the improvement of zinc recovery. The factors that were investigated in this study were agitatio ... More
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Date: 2011
Type: Article
Identifier: uj:4710
Description: The energy crisis, global warming and a cleaner environment are arguably amongst the most pressing issues at present facing modern society. Before devising a suitable strategy to convert a proportion ... More
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Date: 2011
Type: Article
Identifier: uj:6250
Description: The adsorption of Cu (II) ions from aqueous solution onto clinoptilolite from synthetic solutions by ion exchange was investigated. The effects of solution pH and temperature were examined. The Langmu ... More
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