Whey cool: Dairy waste turned into electricity

Publication: NBC News   Date: March 15, 2013   View Article

Get a whiff of this: Milky rinse water flowing from Wisconsin cheese factories will soon be used to generate enough electricity for 3,000 homes, thanks to an innovative solution to a growing wastewater problem.

For years, the milky rinse water was spread on farmland as a low-grade fertilizer, but the practice was curtailed in the face of more stringent environmental regulations to limit runoff pollution, especially in the winter months when spraying on frozen ground was outlawed.

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