Can used coffee grounds help clean up environmental toxins?
Global coffee consumption generates millions of tons of spent coffee grounds each year, which can be damaging to wildlife and the environment. However, new research published in the Journal of Chemical Technology and Biotechnology reveals that spent coffee grounds could be repurposed to act as a powerful adsorbent of bentazone, a herbicide commonly used in agriculture that is highly neurotoxic.
In the study, investigators found that when they used zinc chloride to activate the carbon from spent coffee grounds, the activated carbon showed a 70% efficiency in bentazone removal. The activated carbon was also efficient in a high sensitivity test for pollutants in water.
“Spent coffee grounds... represent an opportunity to contribute to a circular economy,” the authors wrote.
URL upon publication: https://onlinelibrary.wiley.com/doi/10.1002/jctb.7630
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Journal of Chemical Technology and Biotechnology is an international, interdisciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
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JOURNAL
Journal of Chemical Technology & Biotechnology
ARTICLE TITLE
Removal of Bentazone using activated carbon from spent coffee grounds
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