TreeHugger.com: PARC Develops Low-Energy, Membrane-Free Water Filtration Technology
TrollPatrol
· 1 year ago
While I like this and it seems like a great idea ... I believe that the Australian water filter which uses clay, coffee grounds, manure and a match is a much better alternative for developing nations.
It's not only cheaper in basic material costs it also removes bacteria without alum and has specifically not been patented so it can be used without intellectual property costs.
Hydrocotyle ranuculoides will do it, too, and will treat much larger volumes of water for much more modest inputs.
Tom
· 1 year ago
This is similar to the way in which dyson vacuum cleaners work - but its still ingenious.
Joshua
· 1 year ago
How much energy would that use to spin it? centrifuges for things like cell disection spin at something around 6000 rpm (though I could be misinformed).
All Comments
While I like this and it seems like a great idea ... I believe that the Australian water filter which uses clay, coffee grounds, manure and a match is a much better alternative for developing nations.
It's not only cheaper in basic material costs it also removes bacteria without alum and has specifically not been patented so it can be used without intellectual property costs.
:: Enviro Org Australia Water Filter
:: TreeHugger 's original post on the water filter
That's ingenious.
Hydrocotyle ranuculoides will do it, too, and will treat much larger volumes of water for much more modest inputs.
This is similar to the way in which dyson vacuum cleaners work - but its still ingenious.
How much energy would that use to spin it? centrifuges for things like cell disection spin at something around 6000 rpm (though I could be misinformed).