Author:Roux, SP; Oelofse, Suzanna HH; De Lange, Willem JDate:Apr 2010Substantial quantities of water can be made available for use if the quality of return flows is of sufficient quality or treated to the desired quality. In 2006, in the order of 50% of urban and industrial drainage were returned for re-use ...Read more
Author:Nupen, EMDate:Jun 1974This paper attempts to assess the present and future needs for such waters and the virus risk involved in their usage.Read more