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Published March 28, 2010, 12:00 AM

Filtration pumps

Rick Hander, plant manager of Milk Specialties in Mountain Lake, Minnesota, watches some of the company's 48 filtration pumps that run around the clock. The company processes whey into a high protein distillate for sports nutrition and weight loss supplements and is Mountain Lake's largest energy consumer. Mountain Lake uses power partly produced by a wind turbine installed by Juhl Wind. (Glen Stubbe/Minneapolis Star Tribune/MCT)
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