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EL ESPECTADOR

A Money Discovery: Shredded Banknotes Can Clean The Air

Shred your money maker
Shred your money maker

BOGOTA — Colombia’s National University is working on recycling used banknotes, by processing them into an absorbent material that cleans water and air of pollutants, El Espectador reports.

Some 169 million banknotes in Colombia are replaced every year. And the University’s chemical engineering department found that shredding them creates “activated carbon,” a crystalline substance able to absorb the chemical waste produced by a range of industrial and manufacturing processes, including — wait for it — the production of banknotes.

The conversion process involves mixing the shredded notes with urea, a chemical compound found notably in urine. María Paula Franco, one of the chemists experimenting with the process, observed that because Colombian banknotes are made of cotton-derived fiber, they could return to the earth as degradable compost.

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The last Boeing 747, also known as the “Queen of the Skies,” left the company’s widebody factory in Washington and was delivered to cargo carrier Atlas Air, marking the end of an era for the first-ever “jumbo jet.”
Ginevra Falciani & Renate Mattar

👋 Ekamowir omo!*

Welcome to Wednesday, where the U.S. is readying another $2 billion in military support to Ukraine, suspects are arrested in the Peshawar mosque bombing and the long (jumbo) life of Boeing’s 747 reaches a final milestone. Meanwhile, French daily Les Echos reports on the emerging haute cuisine culture rising around gluten-free.

[*Nauruan, Nauru]

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