A 17-year-old just won $150,000 for her ingenious method of cleaning polluted streams

[USA] Paige Brown is the MacGyver of Bangor, Maine.

After extracting a gel called “alginate” from some seaweed, Brown mixed the substance with some aluminum and magnesium and then balled it up into multiple globs to be placed inside the mouths of dollar-store claw hair clips, all held steady by a block of foam.

Paige Brown
Paige Brown

With this invention, the 17-year-old created a way to pull harmful phosphorus from her local streams — an idea that won her the Global Good Prize and $150,000 in college tuition at this year’s Intel Science Talent Search (STS).

“It was definitely quite the experience,” Brown tells Tech Insider of her victory. “I’d say it was the best week of my life.”

The impacts of Brown’s design could reach far and wide. Some 1.2 billion people around the world still lack access to clean water. In underserved countries, waterborne illnesses such as hepatitis, chronic diarrhea, fever, and worms run rampant, posing risks of injury and death.

Brown’s winning design targets a destructive process known as “eutrophication,” in which a nutrient (in this case phosphorous) seeps from organic materials like dead leaves and grass clippings and contaminates an ecosystem in the aftermath of a storm. This can generate excess algae growth in water.

Over time, that extra algae consumes the oxygen that normally would be available to nearby plants and animals. It can also produce a toxin that is harmful to humans when consumed. Ultimately, entire species of fish and plants could die simply because one nutrient never got properly removed.


View original article at: A 17-year-old just won $150,000 for her ingenious method of cleaning polluted streams

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