Problem: At Central Recycling Co-op (CRC) of Elmira, NY, aluminum cans and plastic bottles are baled and glass is sorted by color and crushed. Until a few years ago, CRC simply sold the recycled glass, which was contaminated with metal and paper, to a glass crushing facility. CRC knew that if they could remove the contamination, it would enable them to make a profit by selling uncontaminated cullet directly to bottle manufacturers at a hi

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