{"id":6449,"date":"2018-09-13T13:27:30","date_gmt":"2018-09-13T08:27:30","guid":{"rendered":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=6449"},"modified":"2018-09-11T13:35:33","modified_gmt":"2018-09-11T08:35:33","slug":"innovative-clean-water-technologies","status":"publish","type":"post","link":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=6449","title":{"rendered":"Innovative clean water technologies"},"content":{"rendered":"

Clean fresh water is scarce throughout much of the world with as many as 2.1 billion people lacking safe drinking water at home. And climate change is adding to the stress. These innovations could help.<\/em><\/p>\n

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Producing drinking water, no power needed<\/h2>\n

In many parts of the world, the problem isn’t just a shortage of water, it’s that the available water is dirty. Not surprising considering that 80 percent of the sewage in developing countries is discharged\u00a0untreated.\u00a0 That’s where devices like the\u00a0SunSpring Hybrid\u00a0 come in. The shiny cylinder houses a self-contained water filtration system that can turn more than 20,000 liters of dirty water into drinking water every day. Perhaps more importantly, it can be set up quickly just about anywhere, as long as there is a water source like a river or a well nearby. Built-in solar panels and an optional\u00a0wind turbine means it doesn’t need a power supply, which means it could be used in remote regions without access to electricity or places hit by extreme weather events or natural disasters.<\/p>\n

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Drinking fog<\/h2>\n

There are those places where even dirty water is scarce, like the Atacama desert in northern Chile, or parts of the\u00a0Anti-Atlas Mountains in Morocco.\u00a0 One thing those places do have in common though,\u00a0is a lot of fog. But you can’t drink that. Or can you? Fog collectors make the seemingly impossible, possible. As the misty mass passes through the weave of large vertical nets, tiny droplets of water get caught on the fabric and slowly trickle down the meshing into a collection system. The idea isn’t new, but people have been tinkering to make fog collectors\u00a0more efficient\u00a0 and durable, and to bring the technology to the remote areas that are ideally suited for its use.<\/p>\n

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Don’t flush<\/h2>\n

But getting your hands on clean water isn’t everything. Using it economically is very important, too. One place where we waste a lot of water is the toilet. A single flush on a traditional US toilet can use up to 26 liters of the precious resource. At the same time, one third of the world’s population still doesn’t have access to a real toilet, a massive burden on the environment and a major health risk. So how can we provide toilets to those who don’t have them and avoid flushing so much water\u00a0down the pan? The\u00a0Nano Membrane Toilet\u00a0just might do the trick. The odorless high-tech toilet uses no water or external power\u00a0and turns excrement into water (though not of drinking quaity) and ash, using the biomatter as an energy source in the process. And as futuristic as this may sound, it’s no pipe dream. The design by researchers at Cranfield University won the\u00a0Bill & Melinda Gates Foundation\u00a0‘Reinvent the Toilet Challenge’ and\u00a0working prototypes are already being tested in the field.<\/p>\n

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Floating farm<\/h2>\n

About 97.2 percent\u00a0of water on the planet is salty, making it unsuitable for the cultivation of food. But\u00a0Leilah Clarke,\u00a0 a design student from the\u00a0University of Sussex\u00a0 turned that notion on its head\u00a0when she created floating farm pods that generate their own fresh water. The idea\u00a0is quite simple: As the pods float on the ocean, water evaporates below them and rises in the dome.<\/p>\n

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When the vapor hits the glass, it condensates and runs down the sides, watering the plants growing inside.\u00a0While still a prototype, farms like this, floating off the coast of sun-drenched desert countries could provide food without tapping into limited groundwater.<\/p>\n

Source:\u00a0https:\/\/www.dw.com\/<\/a><\/p>\n

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