Water cleaning Archives – The Green Optimistic green tech news, since 2008 Mon, 26 Aug 2013 18:18:43 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Porous Gel Made of Silver Nanoparticles Provides Solution to Drinking Water Shortage https://www.greenoptimistic.com/porous-gel-silver-nanoparticles-water-filter-20130826/ https://www.greenoptimistic.com/porous-gel-silver-nanoparticles-water-filter-20130826/#respond Mon, 26 Aug 2013 18:18:34 +0000 https://www.greenoptimistic.com/?p=41054 A team of scientists from Nanyang Technological University and University of Colorado developed a method to purify contaminated water using silver nanoparticles. The technology, unlike any of the existing ones, is cheap, fast, effective, and does not require any electricity. The work was published in the latest issue of the journal Environmental Science and Technology. […]

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]]> https://www.greenoptimistic.com/porous-gel-silver-nanoparticles-water-filter-20130826/feed/ 0 41054 Microbes and Saltwater Used to Produce Electricity from Wastewater and Waste Heat https://www.greenoptimistic.com/mrc-microbial-reverse-electrodialysis-cell-20120302/ https://www.greenoptimistic.com/mrc-microbial-reverse-electrodialysis-cell-20120302/#comments Fri, 02 Mar 2012 18:15:21 +0000 https://www.greenoptimistic.com/?p=23030 The difference between saltwater and freshwater can produce electricity. Microbial fuel cells use bacteria to degrade organic matter to also produce energy. Great as they are, these two technologies have had limitations in the past, but now a team of scientists unite them in a system that eliminates most of their shortcomings. The team, led […]

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]]> https://www.greenoptimistic.com/mrc-microbial-reverse-electrodialysis-cell-20120302/feed/ 1 23030 Small Bead Polymer Reduces the Amount of Radioactive Waste Generated by Nuclear Power Plants https://www.greenoptimistic.com/small-bead-polymer-reduces-the-amount-of-radioactive-waste-generated-by-nuclear-power-plants-20091130/ https://www.greenoptimistic.com/small-bead-polymer-reduces-the-amount-of-radioactive-waste-generated-by-nuclear-power-plants-20091130/#respond Mon, 30 Nov 2009 18:33:47 +0000 https://www.greenoptimistic.com/?p=5579 The disposal of the old core rods and also the reactor operation results in a large amount of low-level waste, especially contaminated cooling water. But nuclear power could solve our energy problem if only we could find a way to make it clean.

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