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Gold/Mining/Energy : Global Energy Inc.
GEYI 0.00Dec 14 4:00 PM EST

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To: donpat who wrote (62)10/22/2011 3:42:13 PM
From: donpat   of 134
 
Waste to energy: Green or greenwash?

by Martin LaMonica October 21, 2011 8:53 AM PDT



There's energy in them hills of trash at Covanta Energy's plant.

(Credit: Martin LaMonica/CNET)
HAVERHILL, Mass.--There's a good amount of energy tied up in people's trash cans. But does it make sense to burn it?
.....

There is some emerging technology, notably waste gasification, which could improve the environmental performance of waste to energy. Gasification, where material is heated up in an oxygen-starved chamber, allows for more control of emissions compared to combustion.

The process produces a synthetic gas made mostly of hydrogen and carbon monoxide which can be burned to make electricity or converted into chemicals and fuels. Edmonton, Alberta, for example, plans to open a gasification plant to convert its municipal solid waste into ethanol.

news.cnet.com

Enerkem - Edmonton:
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