https://www.smithsonianmag.com/innovation/could-this-dutch-invention-help-tackle-plastic-pollution-in-americas-waterways-180989651/
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“The Great Bubble Barrier Amsterdam’s Westerdok looks like many other outlets to the city’s historic canals.”
“Could This Dutch Invention Help Tackle Plastic Pollution in America's Waterways?”
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““This is a very tangible solution that speaks to people.” To a group in Lansing, Michigan, it spoke loud and clear.”
“On the bottom of the waterway is a perforated tube which pumps air out, directing plastic to the surface.”
“And now, for the first time, it looks like the United States may also be getting a Bubble Barrier, in the Grand River in Lansing, Michigan.”
“A Bubble Barrier could help prevent plastic from ending up in the freshwater system or the lake itself.”
“According to Jordy Wolfand, a civil engineer at the University of Portland, it effectively functions as a boom.”
““We need to empty trash cans, and this is just a trash can for what’s collected on the river,” says Kaschinske.”
““We’re a city of two rivers,” says Brett Kaschinske, the City of Lansing’s director of parks and recreation.”
“That’s because an innovative “curtain,” known technically as a Bubble Barrier, lies below the surface.”
“One of the main concerns was that the Bubble Barrier would prevent migration of juvenile fish and plankton.”
“Like those in the Netherlands, many residents of the Great Lakes State have an appreciation for waterways and a desire to protect them.”
““Everyone in the plastic cleanup industry says: one waterway is [only] one waterway,” explains Ehrhorn.”
“Westerdok’s Bubble Barrier was the company’s first, installed in 2019.”
“But the Bubble Barrier sends plastic debris upward and then catches it.”
“How does a Bubble Barrier to clean rivers from plastic work?”
“Of the Great Lakes, which collect an estimated 22 million pounds of plastic debris each year, Lake Michigan accounts for nearly half.”
“These weather events obtain their energy from a warm ocean surface; the rising bubbles circulate cold water to the surface, cooling it down.”
“Other scientists are looking into the ecological and hydrological effects of the Bubble Barrier.”
“In Amsterdam, the local water authorities empty the catchment system three times a week.”