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By AP  /  
2015 June 26 - 04:55 pm

Madison College Students Create Algae-Removal System

Device Designed To Combat Algae Blooms and Clean Lakes

MADISON, Wis. (AP) — A system that clears up surface-level algae by slurping it away and depositing it into a dumpster will make its debut this summer in Madison lakes.

Engineering students at Madison Area Technical College designed and developed the system to address algae blooms that have caused beach closures in recent years. The group of about 25 students were hired by the local nonprofit Clean Lakes Alliance and given a $5,000 budget, the Wisconsin State Journal (http://bit.ly/1JVkjGk) reported.

Their system begins with a floating metal platform that pushes muck through an intake tube. The muck then moves through a 20-foot hose to a high-powered pump on shore, before it continues through a 100-foot hose leading to a large dumpster, where water is separated from sludge with a mesh screen. The water is deposited back into the lake, while the algae stays in the dumpster.

“Think of it like an algae lawnmower,” said Jason Yogerst, one of the lead students in Ken Walz’s engineering class at Madison Area Technical College.

The students plan to hold a trial run at Warner Park Beach on Lake Mendota’s north shore.

“This is something I’ve wanted to do for years,” said Richard Lathrop, a retired Wisconsin Department of Natural Resources scientist with an honorary position at UW-Madison’s Center for Limnology. “This project is really moving the whole issue forward. The students have done an amazing job.”

If the method is successful, it will be expanded to other beaches in future years. But the system only will treat problems caused by algae as part of a larger effort to reduce pollution and runoff causing the region’s water-quality issues, according to Paul Dearlove, watershed project manager for Madisonbased Clean Lakes Alliance.

“This is an opportunity for us to make beaches cleaner and easier for the public to use,” he said.

Information from: Wisconsin State Journal, http://www.madison.com/wsj

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