wastewater recovery Archives – The Green Optimistic green tech news, since 2008 Sat, 05 Dec 2015 07:44:08 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Researchers Find Alternative Way to Clean Oil Sands Wastewater https://www.greenoptimistic.com/alternative-way-clean-oil-sands-wastewater/ https://www.greenoptimistic.com/alternative-way-clean-oil-sands-wastewater/#respond Sat, 05 Dec 2015 07:44:08 +0000 https://www.greenoptimistic.com/?p=58074 Contaminants in wastewater left after drilling in Canadian oil sands can remain in the environment for years. It is an environmental pollutant and can also be harmful to human health. However, researchers at the University of Waterloo have come up with an alternative way to clean water left after drilling operations, and it is both […]

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]]> https://www.greenoptimistic.com/alternative-way-clean-oil-sands-wastewater/feed/ 0 58074 Sewage Geothermal Technology Used to Extract Free and “Filthy” Heat in Philadelphia https://www.greenoptimistic.com/sewage-geothermal-heat-20120419/ https://www.greenoptimistic.com/sewage-geothermal-heat-20120419/#respond Thu, 19 Apr 2012 17:11:05 +0000 https://www.greenoptimistic.com/?p=24088 Wastewater is and will always be warm, and its heat so far has usually been lost, without powering anything (but bacteria). To prevent this precious (filthy) energy go down the drain, NovaThermal Energy LLC, based in Philadelphia, wants to implement what they call a “sewage geothermal” technology, meant to recover most of it. “It’s just […]

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