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Sweat Machine Turns Sweat Into Water You Can Drink

by Hazel Chua
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Would you drink your sweat? Obviously, we’d all choose to drink water if we had a choice. But if there’s no clean water, would you drink sweat instead?

The Sweat Machine was created by engineer Andreas Hammar upon the request of Unicef.

Sweat Machine

It essentially purifies human sweat to turn it into drinking water. It’s not being used as a tool to tackle water shortages, but as a means to raise awareness on the issue.

Unicef recently brought out the machine to offer a glass of fresh sweat to visitors and footballers at last week’s Gothia Cup soccer tournament.

Sweat Machine1

The Sweat Machine uses water filtration technology called Membrane Distillation that was developed by HVR and The Royal Institute of Technology in Stockholm. It uses a plastic cassette where the sweat to be filtered is heated into vapor and made to circulate between two membranes. This separates non-volatile substances effectively.

Hammar explained that a sweaty t-shirt can provide about 10ml of water, or just about a mouthful. Just think of how many sweaty shirts you’d need for a full glass of water.

[via Gizmag]

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