ahlam1399
04-05-2016, 10:26 PM
At the Heartland Biogas Project, spoiled milk, old pet food and vats of grease combine with helpful bacteria in massive tanks to generate gas. It's all thanks to anaerobic digestion.
أكثر... (http://www.npr.org/sections/thesalt/2016/04/05/472673127/how-colorado-is-turning-food-waste-into-electricity?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/thesalt/2016/04/05/472673127/how-colorado-is-turning-food-waste-into-electricity?utm_medium=RSS&utm_campaign=news)