Recycling by Ear: Heinz College Students Use Sound To Sort Plastic and Cut Costs
March 25, 2026
March 25, 2026
PITTSBURGH, Pennsylvania, March 25 -- Carnegie Mellon University posted the following news:
* * *
Recycling by Ear: Heinz College Students Use Sound To Sort Plastic and Cut Costs
*
Despite efforts to toss empty soda cans and take-out containers into recycling bins, most of the plastic people use every day ends up in a landfill (opens in new window). That's largely because plastic needs to be sorted before it can be recycled -and the proces . . .
* * *
Recycling by Ear: Heinz College Students Use Sound To Sort Plastic and Cut Costs
*
Despite efforts to toss empty soda cans and take-out containers into recycling bins, most of the plastic people use every day ends up in a landfill (opens in new window). That's largely because plastic needs to be sorted before it can be recycled -and the proces . . .