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: 3, Informative) by VLM on Tuesday April 21 2015, @01:43PM
Ag runoff too. If you live in an area with pig farms in the watershed, and you drink out of a surface source, you're drinking pig waste (and all kinds of other agricultural waste).