Monash University in Melbourne Archives – The Green Optimistic green tech news, since 2008 Tue, 28 Jun 2011 18:26:48 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 New Graphite-Coated "Super Sand" Filters Water Much More Efficiently https://www.greenoptimistic.com/super-sand-water-filter-20110628/ https://www.greenoptimistic.com/super-sand-water-filter-20110628/#comments Tue, 28 Jun 2011 18:26:48 +0000 https://www.greenoptimistic.com/?p=19285 With much of the world still lacking access to safe drinking water, the need for more efficient filtration systems is higher than ever. Wei Gao, from Rice University in Texas, has however invented a graphite-coated type of sand that is cheap to produce and much more effective at filtering water.

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