The program’s director, Stefan Uhlenbrook, said in Pretoria yesterday waste water had always been considered as a problem.
He was addressing ahead of the UN’s World Water Day summit in Durban yesterday.
He said wastewater could be used as a source of energy in farming.
“Waste water contains interesting by-products like nitrogen and phosphorus and metals like potassium, which are necessary for plant growth,” he said.
Uhlenbrook said more than 80% of the world’s waste water was not used.
“That means there is a significant impact on health and the ecosystem,” he said.