A dynamic model for algal growth in the Vaal river

Biodegradable compounds and microbial regrowth in water

Causes and control of low F/M filament bulking in nutrient removal activated sludge systems

Algal toxins in drinking water supplies

High rate biological filtration

Investigation of the contaminant attenuation chracteristics of the soil aquifer system with special emphasis on the vadose zone

The performance of natural soil covers in rehabilitating opencast mines and waste dumps in South Africa

Evaluation of metal water pipe leaks in the Johannesburg municipal area

Septic tank systems in the South African coastal zone

Co-disposal and composting of septic tank and pit latrine sludges with municipal refuse