New research suggests that ultrasound may have potential in treating a group of harmful chemicals known as PFAS to eliminate them from contaminated groundwater.
Invented nearly a century ago, per- and poly-fluoroalkyl substances, also known as"forever chemicals," were once widely used to create products such as cookware, waterproof clothing and personal care items. Today, scientists understand that exposure to PFAS can cause a number of human health issues such as birth defects and cancer. But because the bonds inside these chemicals don't break down easily, they're notoriously difficult to remove from the environment.
"We showed that the challenging smaller compounds can be treated, and more effectively than the larger compounds," said co-author of the study Linda Weavers, a professor of civil, environmental and geodetic engineering at The Ohio State University."That's what makes this technology potentially really valuable."
for other hard-to-remove compounds don't work for them," Weavers said."So we really need to be developing an array of technologies to figure out which ones might be useful in different applications."
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