HelioVap

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Across the 2,700 islands of Indonesia, one in eight households lack clean water access. Traditional desalination technologies have too high energy requirements, costs, and brine discharges to be implemented in these coastal communities. As a result, households often purchase bottled water, which is both expensive and environmentally damaging. HelioVap is a floating, stand-alone desalination device that can provide reliable water access to coastal communities through an off-grid, zero-liquid discharge process that directly uses sunlight to separate seawater into its fundamental components. HelioVap is being designed to produce 75 L of water per day, which should be sufficient to meet the drinking and cooking requirements of five households through the utilization of alternative energy sources including sunlight, wind, and natural temperature gradients. This technology does not threaten biodiversity in the coastal ecosystems that over 50% of the population relies on for income, and the use of alternative energy sources reduces cost and carbon emissions of the process.

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