Now showing items 1-10 of 40
Long term emissions from pretreated waste : lysimeter studies.
Landfill emissions are the major environmental impact associated with the landfilling of solid wastes. These emissions which are mainly gases and leachate are a result of the anaerobic biochemical breakdown of the waste ...
Estimating pedestrian accident risk using conflict techniques and digital imaging.
Accidents are a complex process involving many contributory factors. The understanding of the accident process has often been sought by the use of accident data. Although accident data provide a direct relationship to ...
A numerical study of bacteria transport through porous media using the green element method.
The continued widespread contamination of the subsurface environment by microbial pathogens and chemical wastes has resulted in an increased interest in the factors that influence microbial transport through porous ...
Numerical and experimental study of transient heat transfer through concrete.
The increase in temperature of developing concrete as a result of heat liberated by cementing reactions is the primary cause for thermally induced cracks in large concrete elements. It is very essential, in engineering ...
An assessment of water services in a peri-urban area of Umtata.
No abstract available.
Influence of the degree of waste pre-treatment on carbon emissions' production and nature.
This study was carried out to gain knowledge of the degradation processes in an anaerobic environment of pre-treated waste for different degrees of pre-treatment and the evolution of waste pre-treatment by forced aeration. ...
A study on sustainable waste disposal in South Africa using mechanical biological waste treatment.
The landfilling of Municipal Solid Waste poses a threat to the environment in the form of landfill emissions. These emissions are a result of the biochemical breakdown of the waste in the anaerobic landfill environment. A ...
Stabilisation of waste in shallow test cells : focus on biogas.
Present day society generates large volumes of waste that present an environmental hazard when disposed of in landfills. As our population grows, so does the volume of waste generated and hence the threat to our environment. ...
Investigation to determine the effectiveness of a commercially available pit latrine additive and the development and evaluation of a testing protocol.
The provision of sanitation services during the apartheid era in South Africa was minimal or non-existent in the previous "black" areas and for farm workers. Whatever service that was provided was often in a bad state of ...
An economic comparison of the waste management schemes employed in Cape Town and Johannesburg.
The disposal of waste into landfill sites is currently the most commonly employed method of dealing with waste in South Africa as well as internationally. However the global trend towards operating waste management systems ...