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:Nahman, Anton; De Lange, Willem J; Oelofse, Suzanna HH; Godfrey, Linda KDate:Nov 2012Food waste is problematic for a number of reasons, including the loss of a potentially valuable food source or resource for use in other processes (e.g. energy generation or composting), wasted resources and emissions in the food supply chain, ...Read more
Author:Louw, M; Reid, SJDate:May 1995A novel method has been developed for increasing the production of commercially valuable enzymes, such as proteases, beta-glucanases, alpha-amylases and levansucrase. It is dependent on two genes cloned from Bacillus brevis, expressed on a ...Read more
Author:Oelofse, Suzanna HH; Nahman, AntonDate:Aug 2012Throughout the developed world, food is treated as a disposable commodity. Between one third and half of all food produced for human consumption globally is estimated to be wasted. However, attempts to quantify the actual magnitude of food ...Read more
Author:Greben, HA; Nemaangani, LP; Oelofse, Suzanna HHDate:Nov 2008Waste in South Africa is disposed of in landfills, which produces unwanted landfill gas (CH4) and leachate emissions. Biological treatment of the Organic Fraction of Municipal Solid Waste (OFMSW) is an established technology in Europe, applying ...Read more
Author:Greben, HA; Oelofse, Suzanna HHDate:Oct 2009In many countries, especially on the Asian continent, waste is considered a valuable renewable energy resource. At present 40% of waste generated in South Africa comprises organic material which, when digested supplies biogas. The biogas ...Read more