View Full Version : Machine turns sweat into drinking water for Unicef

07-18-2013, 09:01 PM
The machine was designed and built by engineer Andreas Hammar, known locally for his appearances on TV tech show Mekatronik.

He said the critical part of the sweat machine was a new water purification component developed by a company named HVR in collaboration with Sweden's Royal Institute of Technology.

"It uses a technique called membrane distillation," he told the BBC.

"We use a substance that's a bit like Gortex that only lets steam through but keeps bacteria, salts, clothing fibres and other substances out.

"They have something similar on the [International] Space Station to treat astronaut's urine - but our machine was cheaper to build.

Volunteers have been sampling the treated sweat since the start of the week in Gothenburg "The amount of water it produces depends on how sweaty the person is - but one person's T-shirt typically produces 10ml [0.3oz], roughly a mouthful."

"And the machine will never be mass produced - there are better solutions out there such as water purifying pills."

Read more: http://www.bbc.co.uk/news/technology-23360907

11-04-2014, 12:18 AM
There has also been a machine that turns algae into oil.

rock hunter
03-03-2015, 04:25 AM
With that membrane they can build a something like a stillsuit, like in Dune.
Science catches up with science fiction, kind of like
most everything Apple comes up with was on
a Star Trek show years before.