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Microplastics have received a lot of attention recently because they are difficult to remove from the environment
.
A promising new method of collecting such microplastics has been devised, using acoustics to trap them in water
.
The researchers focused on the fact that one of the largest sources of microplastics in our oceans is washing machines
.
The researchers decided to create a device that collects microplastics and microplastic fibers through piezoelectric vibrations
.
The researchers had trouble preparing the microplastics for their experiments: It was difficult to make the right size microplastics
.
For this experiment, a formula was designed to calculate the optimal acoustic focusing for target microplastic fibers nylon 6, PET and polystyrene microparticles
.
Improvements required for practical application and scalability include the use of multiple serial and parallel channels with different diameters and the mandatory capture of all types of microplastics
.
Through this study, PS beads with a diameter of 15 μm were captured, and theoretically, the smallest size of PS beads that can be captured by this BAW device is 4.
3 μm
.
