Theory, design and operation of nutrient removal activated sludge processes Theory, design and operation of nutrient removal activated sludge processes
Guide for the planning, design and implementation of a water reclamation scheme Guide for the planning, design and implementation of a water reclamation scheme
The economic effects of the mineral content present in the Vaal River Barrage on the community of the PWV complex The economic effects of the mineral content present in the Vaal River Barrage on the community of the PWV complex
Guidelines for assessing flood damage in South Africa Guidelines for assessing flood damage in South Africa
Limnology of some selected South African impoundments Limnology of some selected South African impoundments
A guide to the control of water loss in pipe networks A guide to the control of water loss in pipe networks