Scientists discover incredible use for coffee grounds that everyone can do

Researchers in Australia have discovered a nice practical option for coffee grounds instead of throwing them out and adding to landfill problems.

1 minute & 53 seconds read time

A team of Australian scientists have discovered an incredible alternative to throwing out coffee grounds and adding to the exponential issue of organic waste.

Scientists discover incredible use for coffee grounds that everyone can do 6789

A new study published in the Journal of Cleaner Production by a team of Australian scientists details a process utilizing coffee grounds that typically ends up in landfills around the world. Notably, 10 billion kilograms, or 10 million tonnes of coffee grounds, are disposed of each year, and the team behind the study proposes reducing the amount of natural sand extracted around the world that's meeting the exponential demand of the construction industry with organic waste such as coffee grounds.

The team took coffee ground and heated them to 660° F, as coffee ground by themselves can't be added to concrete mixture due to them leaking chemicals that make the structure weaker. However, after being baked at 660° F, the team was left with no organic moles and a carbon-rich substance called biochar. This is capable of being mixed with a cement matrix and produced a durable cement mixture that's strong and useable.

"The ongoing extraction of natural sand around the world - typically taken from river beds and banks - to meet the rapidly growing demands of the construction industry has a big impact on the environment," says RMIT engineer Jie Li.

"There are critical and long-lasting challenges in maintaining a sustainable supply of sand due to the finite nature of resources and the environmental impacts of sand mining. With a circular-economy approach, we could keep organic waste out of landfill and also better preserve our natural resources like sand."

Discoveries such as these may be routes that can be taken to help mitigate climate effects, such as natural sand being finite and being taken from environments while also repurposing something that would ordinarily end up in a landfill emitting methane and carbon dioxide. However, practicality needs to come into play, and that's an entirely separate issue.

Jak joined the TweakTown team in 2017 and has since reviewed 100s of new tech products and kept us informed daily on the latest science, space, and artificial intelligence news. Jak's love for science, space, and technology, and, more specifically, PC gaming, began at 10 years old. It was the day his dad showed him how to play Age of Empires on an old Compaq PC. Ever since that day, Jak fell in love with games and the progression of the technology industry in all its forms. Instead of typical FPS, Jak holds a very special spot in his heart for RTS games.

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