Coffee’s Potentially Powerful Afterlife


La Paz Group

Researchers are experimenting with using used coffee grounds to filter pollutants out of water. Credit RJ Sangosti/The Denver Post via Getty Images Researchers are experimenting with using used coffee grounds to filter pollutants out of water. Credit RJ Sangosti/The Denver Post via Getty Images

Coffee lovers that we are, it’s amazing that we almost missed this piece of news…

Each year, coffee manufacturers, restaurants, cafes and home brewers worldwide produce about six billion tons of coffee waste… If not rotting in a dump or fertilizing a garden, the grounds end up in animal feed and biofuels.

But researchers in Italy have found a new home for the stinky old coffee bits — by infusing them into a porous foam that removes heavy metals from polluted water, according to a study published this month in ACS Sustainable Chemistry and Engineering.

“We use a lot of coffee here in Italy,” said Despina Fragouli, the author of the study and a materials scientist at the Istituto Italiano di Tecnologia. She and her team…

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About agogo22

Director of Manchester School of Samba at http://www.sambaman.org.uk
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