Water, Sewage & Effluent May-June 2018 | Page 30

Durban Water Recycling (DWR) plant: Veolia installed a highly specialised water treatment process, specifically tailored to meet the exacting water quality requirements of DWR’s main client, Mondi Paper, which uses the recycled water directly for the production of fine paper, which is extremely sensitive to process water quality and its impact on water brightness. Mapping the road to the circular economy Cities of the future will have a radically different understanding of what we today consider ‘waste’. An exclusive contributed by Veolia F uture cities will recognise and have the technological capabilities to harvest and recycle precious resources from sometimes the unlikeliest and contaminated of waste streams — and the benefits will be greater efficiencies of production, lower energy costs, and greater environmental sustainability. 28 In fact, perhaps such cities are not too far away. Already, plants such as the Durban Water Recycling (DWR) plant and the Goerengab Water Reclamation Project in Windhoek, Namibia, which recycle 47.5Mℓ and 21Mℓ, respectively, of wastewater per day, represent landmark — although (frustratingly) Water Sewage & Effluent May/June 2018 isolated — examples of municipal wastewater recycling schemes in southern Africa. Water and wastewater management specialist Veolia Water Technologies South Africa was involved in both plants. As Chris Braybrooke, general manager: marketing at Veolia Water Technologies, South Africa, explains, “Waste is a