Mail & Guardian
Mail & Guardian
northern water waste treatment workslatest news & developments
Waste of energy: Trucks carry untreated sewage sludge from Northern Water Waste Treatment Works to farms. If the sludge were used to produce electricity, it could save the City of Johannesburg millions of rands each year. (Delwyn Verasamy/M&G)
BIOGAS

Raw power dumped on farms

About 500 tonnes of sewage is trucked daily across Gauteng and disposed of on mielie fields instead of being used to make biogas

  • Kevin Davie
7 min read