Sewage Sludge Treasure
Top of Mind with Julie Rose - Radio Archive, Episode 194 , Segment 5
Episode: Climate Change and Hunger, Kids' Self-Esteem, deFUNKit
- Dec 10, 2015 10:00 pm
- 15:44 mins
Guest: Paul Westerhoff, PhD, Environmental Engineering Professor at Arizona State University We have treasure in a most unlikely place. Researchers have found significant amounts of precious metals in sewage sludge. They say that the valuable metals in bio-solids may be worth up to $13 million per year for a community of 1 million people.