Ferreira’s project used a novel, but effective methodology for removing ocean plastics. He used magnets to attract microplastics from water. The project found that a magnetic liquid called ferrofluid attracted the tiny plastic particles and removed them from the water. After nearly a thousand tests, his device successfully removed about 88 percent of the microplastics from water samples, according to The Irish Times.
“I look forward to applying my findings and contributing towards a solution in tackling microplastics in our oceans worldwide,” he said.
The Google Science Fair invited 24 young scientists from around the world to its Mountain View, California campus to show off their projects. The invitees were chosen from a short list of 100 global entries. Ferreira’s grand prize is $50,000 in educational funding.
His idea came to him after finding a rock covered in oil near his remote coastal town in Ireland’s southwest. He noticed tiny bits of plastic stuck to the oil. The tiny size of microplastics has befuddled scientists looking for ways to remove them from the environment. But Ferreira thought of something.
“It got me thinking,” Ferreira said, as Business Insider reported. “In chemistry, like attracts like.”