Nature’s water purifiers help clean up lakes

September 30, 2012   // 0 Comments

Just five years ago, Fish Fry Lake was dying. The groundwater flowing into the lake situated 30 miles northeast of Billings, Montana, contained high levels of nitrogen and phosphorous, common ingredients in agricultural fertilizers and animal waste. The nitrogen and phosphorus had fostered an overgrowth of algae, which covered the lake and blocked sunlight from penetrating the surface. The deep wa...

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