Berea College
Berea College, Kentucky -- the college's Ecovillage hothouse features the "ecological machine": an on-site sewage treatment system that converts wastewater into swimmable-quality water for reuse. Here, a tank of treated water is home to a variety of fish.
Photo credit: David R. Lutman / Berea College via Flickr
www.flickr.com/photos/imcberea/20498406459/in/album-72157...
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Taken on February 13, 2008