Portable Solar Desalination Device for Affordable Water

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Our Thursday green news brings you the latest on green architecture, climate change, energy and communities:

Desolenator, solar desalination

Photo courtesy of Desolenator

  • Portable solar desalination device for affordable water: The product Desolenator was recently developed as a portable and affordable water purifying and desalinating device running on clean energy. This solar desalination system combines solar PV, solar thermal, and a heat exchanger, and can convert up to 15 liters of clean water a day. Water purification and desalination equipment can turn dirty water or sea water into clean drinkable water, however majority of the existing solutions are very costly and also require additional inputs, from energy to materials. Millions of people around the world lack access to clean water and the combined effects of contaminated drinking water with shortage of adequate sanitary facilities can take a huge toll on both individuals and communities. Desolenator aims to bring clean water to impoverished communities that would otherwise have very limited or no clean water access. As the creators explain: “We are dreaming of the day when every community that has struggled to access clean water has a Desolenator whizzing away in the background making clean and safe water for them to drink.”
  • Reduce your water footprint with simple tips: Excessive water consumption is a huge problem, especially in developed countries. According to Stephen Leahy, the author of the new book “Your Water Footprint”, there is more to water consumption than everyday water uses such as showering, cooking or laundry washing. He talks about the “virtual water” that grows the food we eat, is used to generate electricity, and produces everyday products we use. The book is full of water-saving tips, such as the following: 1. Drink tea instead of coffee: growing coffee beans is a much more water-intense process than growing tea leaves; the amount of virtual water needed to produce a cup of tea is 9 gallons, while the amount of virtual water in a cup of coffee is 37 gallons. 2. Recycle food scraps in the compost instead of a garbage disposal 3. Buy secondhand jeans instead of new ones: jeans production has a very large virtual water footprint, about 2,100 gallons per pair. Most of that water is used for growing the cotton, but water is also used to wash and dye the denim. 4. Water your garden with rainwater instead of tap water: use barrels to collect rain water from the downspouts to avoid using the treated drinking water to water your plants.
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