water filtration Archives – The Green Optimistic green tech news, since 2008 Mon, 01 Oct 2018 19:22:39 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Aluminum Oxide Filter Made With Gallium to Make Toxic Water Safe and Drinkable https://www.greenoptimistic.com/gallium-filter-make-toxic-water-safe-drinkable-20180929/ https://www.greenoptimistic.com/gallium-filter-make-toxic-water-safe-drinkable-20180929/#respond Mon, 01 Oct 2018 19:22:39 +0000 https://www.greenoptimistic.com/?p=67218 Nano filters made of aluminum oxide could be cheaply produced using virtually no energy from a fix amount of liquid metal gallium. Researchers discovered when aluminum is added to the core of liquid gallium at room temperatures, nano-sheets of aluminum oxide are quickly produced at the surface of the gallium. The aluminium oxide nano-sheets are […]

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]]> https://www.greenoptimistic.com/gallium-filter-make-toxic-water-safe-drinkable-20180929/feed/ 0 67218 Energy-saving Microfilter for Fracking Water Removes Over 90% Impurities https://www.greenoptimistic.com/microfilter-fracking-water-20170926/ https://www.greenoptimistic.com/microfilter-fracking-water-20170926/#respond Wed, 27 Sep 2017 05:12:38 +0000 https://www.greenoptimistic.com/?p=64486 An average of more than five million gallons of water are used in a hydraulically fractured well, and only a small portion, around 10 to 15 percent of this water is recoverable during the backflow process. “This makes it very important to be able to re-use this water,” Rice University chemist Andrew Barron said. Researchers […]

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]]> https://www.greenoptimistic.com/microfilter-fracking-water-20170926/feed/ 0 64486 Sweat Turned to Potable Water in UNICEF Campaign https://www.greenoptimistic.com/sweat-potable-water-unicef-20130719/ https://www.greenoptimistic.com/sweat-potable-water-unicef-20130719/#respond Fri, 19 Jul 2013 07:28:15 +0000 https://www.greenoptimistic.com/?p=39556 An incredible sweat-extraction machine, which takes the moisture from sweat-laden clothes and turns it into fresh drinking water, is built in Sweden and used to promote a campaign by Unicef. The invention filters out the bacteria, salt and fibres from the clothing, and lets only the water molecules in the form of steam to pass […]

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]]> https://www.greenoptimistic.com/sweat-potable-water-unicef-20130719/feed/ 0 39556 Graphene Membranes Could Aid Water Filtering https://www.greenoptimistic.com/graphene-membranes-could-aid-water-filtration-20121024/ https://www.greenoptimistic.com/graphene-membranes-could-aid-water-filtration-20121024/#respond Wed, 24 Oct 2012 17:16:40 +0000 https://www.greenoptimistic.com/?p=27144 Graphene has proven itself as not only a great conductor for heat and electricity, but also a perfect substance for a barrier film and bullet repellent. However, researchers from MIT, Oak Ridge National Laboratory, have discovered that although the material seems impenetrable, by building large membranes from single sheets of graphene grown by chemical vapour deposition, small […]

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