Sewage treatment Archives – The Green Optimistic green tech news, since 2008 Thu, 19 Apr 2012 17:11:05 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 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 […]

The post Sewage Geothermal Technology Used to Extract Free and “Filthy” Heat in Philadelphia appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/sewage-geothermal-heat-20120419/feed/ 0 24088 Bill Gates Funds Project That Produces Biodiesel and Methane From Human Sludge in Ghana https://www.greenoptimistic.com/bill-gates-ghana-sludge-20110616/ https://www.greenoptimistic.com/bill-gates-ghana-sludge-20110616/#respond Thu, 16 Jun 2011 15:56:17 +0000 https://www.greenoptimistic.com/?p=19130 Q: What do human poop, fuel cells, clean energy and Bill Gates have in common? A: a $1.5 million grant to Columbia University professor Kartik Chandran. He is to develop a "Next-Generation Urban Sanitation Facility" in Accra, Ghana along with Waste Enterprisers and the Kwame Nkrumah University of Science and Technology. The project will turn fecal sludge into biodiesel and methane. Gross, isn't it?

The post Bill Gates Funds Project That Produces Biodiesel and Methane From Human Sludge in Ghana appeared first on The Green Optimistic.

]]> https://www.greenoptimistic.com/bill-gates-ghana-sludge-20110616/feed/ 0 19130