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VTI, a small Czech Republic company, has a device (with actual commercial installations) which can make drinking water out of any liquid dirt, like pig sludge. They claim it -unlike reverse osmosis- needs very little power, no chemicals involved, only physics.
From their website:
The core of our device is the Technology of Hybrid Asymmetric Selective Membrane Separation - THASMS, which was developed over time by our research team. The AQ3 device is suitable for use both in households and industrial units, where it eliminates problems with water quality, and with extremely low energy consumption.
Videos of the device in action purifying pig slurry (subtitled in English) are available on the references page of the website.
Are there more companies and products using this technology?
(Score: 0) by Anonymous Coward on Tuesday April 21 2015, @05:50PM
It's actually the contaminants that pass through the membrane
Incorrect. Osmosis is water (in this case anyway) going through a membrane/barrier (or similar) from the dilute ("purer") side to the not so dilute (more "stuff") side .
Reverse osmosis is water being forced to go through a membrane (or similar) from the not so dilute side to the dilute side.
https://en.wikipedia.org/wiki/Reverse_osmosis#Process [wikipedia.org]
(Score: 0) by Anonymous Coward on Tuesday April 21 2015, @06:53PM
From what I understood and which is interesting, they do not force the water through the membrane. And AFAIK, reverse osmosis needs a lot of power to do exactly that, here almost nothing, the water just flows thru the membrane (or filter, if you will).
BTW, the page is in English, click the British flag icon.