Eko Hot Blog reports that two Nigerian female students have invented a water purifying device that uses solar energy to turn contaminated water into safe drinking water.
Elizabeth Korolo Boluwatife and Abdulsalam Ajara, students at Wesley Girls’ Senior Secondary School in Lagos, Nigeria, won the Stockholm Junior Water Prize Nigeria for their invention, called the Bithermal Water Distillation Device.
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The device uses two methods of distillation to purify water: solar distillation and thermal distillation. Solar distillation uses the sun’s heat to evaporate water, and the water vapor then condenses on a cool surface, leaving behind impurities. Thermal distillation uses heat from a stove or other source to evaporate the water.
The Bithermal Water Distillation Device is made from local materials, including sand, charcoal, and fiber. It is designed to be simple to use and affordable, making it a suitable solution for rural communities that lack access to clean water.
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Boluwatife and Ajara were inspired to invent the device after seeing the challenges faced by people in their community in Makoko, a riverine area of Lagos. Makoko is a densely populated community with limited access to clean water. The water that is available is often contaminated with sewage and other pollutants.
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