24 May 2016
In the German-Namibian research and development project entitled CuveWaters, close collaboration between scientist/researchers, partners in the field, and the population itself has made it possible to develop and implement solutions for a sustainable water supply and wastewater disposal.
After almost ten years of research and development, the CuveWaters team headed by ISOE (Institute for Social-Ecological Research) presented its comprehensive results in Windhoek. The complex supply system was implemented at different sites in the Cuvelai-Etosha Basin, whose population is heavily affected by climatic extremes such as flooding and persistent periods of drought. In collaboration with the Technische Universität Darmstadt, partners in the field and local Namibian partners, it was possible with the help of solar-powered desalination plants to generate new sources of drinking water, even at locations a long way from central water pipelines.
The systems for collecting rainwater and storing floodwater provide water with which to irrigate farmland. They represent an innovation for this region, and enable several families to cultivate vegetables all year round and sell them at the local markets. But CuveWaters has also given rise to an innovative, energy-efficient sanitation and wastewater concept with subsequent water recycling. Around 1,500 inhabitants of Outapi, most of whom come from low-income households, are now able to use washhouses, showers and toilets. Nutrient-rich service water is recovered from the wastewater and used for irrigation as well as for biogas with which to generate heat and electricity.
Adapting to climate change
Natural water sources have always been in short supply in Northern Namibia. It is becoming clear that water as a resource is going to come under increasing pressure from climate change. How can the population still be guaranteed a regular supply of drinking water? How can farm land be effectively irrigated or sewage disposed of safely?
 Photo: ISOEFarmers at the CuveWaters Green Village in Epyeshona |
After almost ten years of research and development, the CuveWaters team headed by ISOE (Institute for Social-Ecological Research) presented its comprehensive results in Windhoek. The complex supply system was implemented at different sites in the Cuvelai-Etosha Basin, whose population is heavily affected by climatic extremes such as flooding and persistent periods of drought. In collaboration with the Technische Universität Darmstadt, partners in the field and local Namibian partners, it was possible with the help of solar-powered desalination plants to generate new sources of drinking water, even at locations a long way from central water pipelines.
The systems for collecting rainwater and storing floodwater provide water with which to irrigate farmland. They represent an innovation for this region, and enable several families to cultivate vegetables all year round and sell them at the local markets. But CuveWaters has also given rise to an innovative, energy-efficient sanitation and wastewater concept with subsequent water recycling. Around 1,500 inhabitants of Outapi, most of whom come from low-income households, are now able to use washhouses, showers and toilets. Nutrient-rich service water is recovered from the wastewater and used for irrigation as well as for biogas with which to generate heat and electricity.
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