Clean water harvested from fog

In a mountainous area of South Africa’s Limpopo Province, water is harvested from fog-bearing winds.

The Tshiavha Primary School, with the aid of Liesel Dyson and researchers fromharvest-water-from-fog the University of Pretoria and the University of South Africa, has built a six-metre high net that traps 2,500 litres of water per day.  Tshiavha’s elevation faces the fog-bearing winds off the Indian Ocean which is several hundred kilometres away.

Three six-metre-high wooden poles are set up nine metres apart, and water drops are caught by a double layer of 30 percent shade cloth draped over steel cables that are stretched horizontally between the poles.  The water is collected in a gutter than runs along the bottom of the shade cloth and this channels the water into a storage tank.  Read more about it here.