Acoustic focusing to amass microplastics in water

Read the full story from Shinshu University.

Microplastics are receiving a lot of attention lately due to its difficulty in removal from the environment. Sieves and filtrations are currently the predominant way to capture microplastics in water. However, this is impractical because filters clog easily and regularly need to be cleaned or replaced. Another issue is that it has been impossible to collect anything smaller than 0.3mm, the size of the mesh plankton net pore diameter. This is unfortunate because the majority of microplastics causing havoc are smaller than that, with unknown effects on the eco and biosystems.

A promising new method to collect such microplastics has been devised using acoustics to gather them in water. 

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