Earth

Canned Water Made From Air and Sunlight To Hit US Stores in September – Slashdot

Posted by msmash from the how-about-that dept.

Canned water distilled from the air will be available to buy in the US later this year, in an effort to promote solar-powered “hydropanels” that provide an off-grid method of producing drinking water. New Scientist adds: The panels, created by Arizona-based firm Source, use solar energy to power fans, which draw water vapour from the air. A water-absorbing substance, known as a desiccant, traps the moisture, before solar energy from the panel releases the moisture into a collection area within the panel. The distilled water is then sent to a pressurised tank, where the pH is tweaked and minerals like calcium and magnesium are added.

Each panel can produce up to 3 litres of drinking water water a day, about the average daily intake for one person. The process works effectively even in hot, arid conditions such as Arizona, says Friesen. Source, which launched in 2014 as Zero Mass Water, already has hydropanels installed in 56 countries around the world. The panels can be installed as ground arrays, or on rooftops, linked into a building’s drinking water pipes. Many sites serve off-grid communities without easy access to potable water, says Friesen. Most of the panels, which retail at almost $3000 apiece, are purchased by governments or development banks, although households can also install panels privately.

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