Wednesday, 28 April 2021

Scientists find way to remove polluting microplastics with bacteria

 source: The Guardian

 

Microbiologists have devised a sustainable way to remove polluting microplastics from the environment – and they want to use bacteria to do the job.

Bacteria naturally tend to group together and stick to surfaces, and this creates an adhesive substance called “biofilm” – we see it every morning when brushing our teeth and getting rid of dental plaque, for example. Researchers at the Hong Kong Polytechnic University (PolyU) want to use this sticky bacteria property and create tape-like microbe nets that can capture microplastics in polluted water to form an easily disposable and recyclable blob.

Although these findings, presented on Wednesday at the Microbiology Society’s annual conference, are still preliminary, this invention could pave the way for sustainably lowering plastic pollution levels in the long run by simply using something found in nature.

“It is imperative to develop effective solutions that trap, collect, and even recycle these microplastics to stop the ‘plastification’ of our natural environments,” said Sylvia Lang Liu, microbiology researcher at PolyU and lead researcher on this project.

 

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