cheap water purifier Archives – The Green Optimistic green tech news, since 2008 Thu, 14 Aug 2014 13:26:43 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Teenager Designs a Unique Portable Device to Purify Water and Generate Electricity https://www.greenoptimistic.com/teenager-designs-unique-portable-device-purify-water-generate-electricity-20140814/ https://www.greenoptimistic.com/teenager-designs-unique-portable-device-purify-water-generate-electricity-20140814/#respond Thu, 14 Aug 2014 13:26:29 +0000 https://www.greenoptimistic.com/?p=48881 Regardless of how many times it happens, it is always fascinating to read about a teenager, who has done something incredible. This time the star of the show is the 17-year-old Australian student Cynthia Sin Nga Lam, who found herself in the top 15 of the Google Science Fair, with her portable device that generates electricity […]

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]]> https://www.greenoptimistic.com/teenager-designs-unique-portable-device-purify-water-generate-electricity-20140814/feed/ 0 48881 Revolutionary Water Purifier Made From Banana Peels Eliminates Toxic Metals https://www.greenoptimistic.com/banana-peels-water-purifier-20110311/ https://www.greenoptimistic.com/banana-peels-water-purifier-20110311/#respond Thu, 10 Mar 2011 22:33:19 +0000 https://www.greenoptimistic.com/?p=17478 A water purification system developed recently by Gustavo Castro and his colleagues from Brazil is actually based on banana peels, with no other complex filters or other electronics involved.

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]]> https://www.greenoptimistic.com/banana-peels-water-purifier-20110311/feed/ 0 17478 Nano-structured Teabags Make Water Purifying Simpler Than Ever https://www.greenoptimistic.com/teabags-water-purifying-20100818/ https://www.greenoptimistic.com/teabags-water-purifying-20100818/#respond Wed, 18 Aug 2010 17:44:43 +0000 https://www.greenoptimistic.com/?p=9265 South Africa's Stellenbosch University scientists led by Eugene Cloete invented a kind of teabag which, instead of filtering tea impurities, purifies water at the lowest price and energy consumption possible.

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