Two Danish students have developed “SolarSack” for inexpensive and environmentally friendly water purification. The concept was tested in villages, refugee camps and slums in East Africa where it will be marketed.
Anders Løcke and Louise Ullmann, who study Architecture and Design at Aalborg University (AAU), have designed a better and cheaper system for purifying drinking water in developing countries.
The product, known as SolarSack, is a special bag that is filled with four liters of water and placed in the sun for four hours. Using UVA and UVB rays, as well as heat from the sun, the water is cleaned of pathogenic bacteria. The user can then drink the water and reuse the bag for water purification.
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