banana water purifier Archives – The Green Optimistic green tech news, since 2008 Thu, 10 Mar 2011 22:33:19 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 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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