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Water is becoming one of the world’s most precious commodities, particularly in arid, developing nations. Designer Gabrielle Diamanti has created a prototype for a solar still that could help people with access to salt water convert it into up to 5 litres of fresh water per day.

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solarwaterstill_1.jpgDiamanti calls her device “Eliodomestico”. Salt water is poured into the top chamber of the device and heated into steam by the sun – removing the salt. The resulting steam is then forced down through an expansion nozzle to condense as fresh water in the lower basin.

The simple still is constructed of cheap, readily available raw materials; operates off-grid – with no electricity; and is low maintenance.

Eliodomestico was a finalist at the 2011 Prix Emile Hermes competition. It is an ‘open’ design and intended to be shared.

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via: notcot.org