Effect of clearfelling pines on water yield in a small Eastern Transvaal catchment, South Africa

Application of the instream flow incremental methodology to Southern African rivers: Protecting endemic fish of the Olifants River

SA Waterbulletin June 1991

Research into the effects of reduced water consumption on domestic sewer systems

Development of a two-stage counter-current powdered activated carbon-dissolved air flotation system

Consolidation of activated sludge and water chemistry research (Jan 1988 – Dec 1990)

SA Waterbulletin April 1991

Exploitation potential of Karoo aquifers

Exploitation potential of Karoo aquifers : Appendix

Mathematical modelling of upflow anaerobic sludge bed (UASB) systems treating carbohydrate wastewaters