what proportion of glass?
Answers
Answer:
Explanation:
americans dispose of some 10 million metric tons of glass annually. Most of it ends up in the trash. Only about one-third gets recycled. That’s not because of some intrinsic materials or chemical property that makes glass difficult to recycle.
“Glass is 100% recyclable,” says Robert Weisenburger Lipetz, executive director of the Glass Manufacturing Industry Council (GMIC), a nonprofit trade association. “It has an unlimited life and can be melted and recycled endlessly to make new glass products with no loss in quality,” he adds.
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And the US’s roughly 33% glass-recycling rate, which pales compared with the 90% recycling rate in Switzerland, Germany, and other European countries, is not the result of a lack of technical know-how.
“Recycled glass is nearly always part of the recipe for making new glass,” says Joseph J. Cattaneo, executive director of the Glass Packaging Institute (GPI), a trade association representing the North American glass-container industry. The glass industry regularly mixes cullet—a granular material made by crushing bottles and jars usually collected from recycling programs—with sand, limestone, and other raw materials to produce the molten glass needed to manufacture new bottles and jars.