Author:Ndlela, Luyanda L; Oberholster, Paul J; Van Wyk, J; Cheng, Po-HsunDate:May 2017With the effects of climate change, harmful algal blooms (HABs) have become a global concern, with serious implications in water scarce countries such as South Africa. There is a specific lack of information in the African continent regarding ...Read more
Author:Ndlela, Luyanda L; Oberholster, Paul J; Van Wyk, JDate:Apr 2016With the effects of climate change, harmful algal blooms (HABs) have become a global concern, with serious implications in water scarce countries such as South Africa. There is a specific lack of information in the African continent regarding ...Read more
Author:Maree, JP; Dingemans, D; Van Tonder, GJ; Mtimkulu, SDate:1998Iron (II) should be oxidised to iron (III) before the neutralisation of acid water with limestone, otherwise the oxidation will occur downstream of the neutralisation plant with the formation of acid (reactions 1 and 2). This study aimed at ...Read more
Author:Baloyi, MJ; Greben, HADate:May 2006Mine drainage arises from oxidation of pyrites, due to exposure to air and water. Acid mine drainage normally contains high concentrations of sulphate, metals and acidity. These pollutants can be reduced by applying the biological sulphate ...Read more
Author:Roux, DJ; Kleynhans, CJ; Thirion, CDate:1999The output of monitoring programmes such as the National Aquatic Ecosystem Bio monitoring Programme must be used in the management of aquatic ecosystems. To achieve this, collected data must, through a systematic framework, be linked to ...Read more
Author:Greben, HA; Joubert, LM; Tjatji, MP; Whites, HE; Botha, ADate:Apr 2007A series of lignocellulosic fungi, capable of cellulase and/or xylanase production, were isolated from soil to be used for cellulose degradation and nitrate removal from nitrate-rich wastewater in simple one-stage anaerobic bioreactors ...Read more
Author:Mulopo, J; Schaefer, Lisa MDate:Mar 2015This paper evaluates the biological regeneration of ferric Fe3+ solution during desulphurisation of gaseous streams. Hydrogen sulphide (H2S) is absorbed into aqueous ferric sulphate solution and oxidised to elemental sulphur, while ferric ...Read more
Author:Meiring, PGJ; Oellermann, RADate:1995A system of oxidation ponds in series with a biological trickling filter is described. It was known that this arrangement was incapable of reducing effectively the levels of algae present in the pond liquid even though nitrification was ...Read more
Author:Greben, HA; Maree, JP; Singmin, Y; Mnqanqeni, SDate:2000Mining effluents are major contributors to mineralization of receiving waters and can be toxic to man, animals and plants due to unacceptably high concentrations of heavy metals. A biological sulphate removal process has been developed for ...Read more
Author:Vogta, T; Pieters, R; Giesy, J; Newman, Brent KDate:Jan 2019The toxic equivalences (TEQs) of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) from sediment of aquatic systems in Durban, South Africa were determined in two ways: 1) TEQs of PAHs and PCBs were determined by ...Read more
Author:Paterson-Jones, JCDate:1989This report describes the results of the biological utilization of Bagasse programme, a programme of the CSIR's foundation for research development, aimed at developing and evaluating the expertise and technology for hydrolyzing the hemicelluloses ...Read more
Author:Paterson-Jones, JCDate:1989The technology to produce ethanol and single cell protein from sugarcane bagasse has been developed. Hydrolysis of the hemicelluloses by dilute sulphuric acid produces a solution of xylose and other sugars and embrittles the cellulose/lignin ...Read more
Author:Steyn, PS; Van den Heerver, JP; Vosloo, HCM; Ackerman, LGJDate:Aug 1998A chemical investigation into the composition of Zanthoxylum capense yielded several biologically active compounds, including pellitorine. A convenient HPLC method was developed to determine the presence of pellitorine in crude extracts from ...Read more
Author:Mthunzi-Kufa, PatienceDate:Oct 2012In this presentation the author highlights the use of lasers in micro-manipulating single cells and molecules.Read more
Author:Van der walt, LDate:Apr 2015The purpose of this study was to review biochar research towards investigating the potential of biochar for the rehabilitation of eroded soils, outside of agricultural systems.Read more
Author:Nelufule, Nthatheni N; Moolla, Yasneen; Ntshangase, Cynthia S; De Kock, Antoine JDate:Mar 2023One of the first recognised and commonly used biometric modalities for men is the fingerprint, which is frequently used to register adults at home and in traffic centres. Fingerprint biometrics for babies, in particular, are not commonly used ...Read more