Author:Szewczuk, SDate:Aug 2015The South Africa transport sector is a major user of energy, in particular liquid fossil fuels that contribute to Green House Gas emissions. South Africa is committed to developing a Green Economy, but South Africa has significant challenges ...Read more
Author:Oelofse, Suzanna HHDate:Jul 2019This presentation discusses the challenges faced by managing biowaste in South Africa, and also offers solutions to introduce economically viable resources back into South Africa through recycling, reuse and energy recovery.Read more
Author:Greben, H; Burke, LM; Szewczuk, SDate:Oct 2009Identifying alternative sources of energy is a matter of urgency, since conventional energy sources are becoming exhausted. Renewable energy sources, such as biogas, can be generated from organic waste, through the anaerobic digestion (AD) ...Read more
Author:Otter, LB; Marufu, L; Scholes, MCDate:Mar 2001Biogenic processes in southern African savannas are estimated to produce 1.0 Tg NO yr(-1), 44.2-87.8 Tg C yr(-1) as non-methane hydrocarbons (NMHCs) and to consume 0.23 Tg CH4 yr(-1). Floodplains and wetlands in southern Africa are estimated ...Read more
Author:Nweke, EE; Suleman, Essa; Du Plessis, M; Thimiri Govindaraj, Deepak BDate:Aug 2021In this book chapter, we focus on application of genome annotation and analysis of microbes for synthetic biology and cancer biology research. We particularly emphasised on application of microbial genomics in synthetic biology and cancer ...Read more
Author:O'Kennedy, Maretha M; Stark, HC; Dube, NDate:Jan 2011Maize (Zea mays L.) is the most important cereal food crop in sub-Saharan Africa and Latin America, and a key feed crop in Asia, whereas pearl millet [Pennisetum glaucum (L.) R. Br.] is a staple food that supplies a major proportion of calories ...Read more
Author:Slabbert, JL; Venter, EADate:Oct 1999A number of aquatic toxicity tests have been established for South African use, which include fish and Daphnia lethality tests, microbiotests, and short-term chronic tests. Studies on effluents and surface waters showed that all the tests ...Read more
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