The innovative design used in upgrading the Wiggins Water Treatment Works maximised water recovery and recycling without the risk of recycling pathogenic organisms. During 1994 the filtration capacity of the Wiggins Water Treatment Works was increased from 175 Ml/d to 350 Ml/d. As a result it became necessary to upgrade the sludge treatment and disposal system and the filter washwater recovery system to treat the additional volumes.
Prepaid water meters were the option selected by the community when a basic water supply was offered by the DWAF. The aim of this paper is to share the experiences gained during the installation of prepaid water meters for community standpipes on the Modderspruit water supply project, the first of its kind in the country. Water supply is a basic need upon which rural communities are dependent for their health and development. Large sums of money are invested in capital projects to provide rural communities with adequate water. The sustainability of these projects depends on their successful operation, maintenance and, more especially, their return on investment.
This paper reviews the current state of Bauinformatik at German technical universities, where it has been a formal core subject in civil engineering since 1985, considering specifically the computer in civil engineering and the organisation of computer-related studies. The subject of Bauinformatik at German technical universities concerns itself with the study and application of computer and related information systems technology for the building and civil engineering industries. By 1985 the study area had been formalised and is now being taught at all German technical universities.