Wastewater not wasted: generating electricity from cheese making - WXOW News 19 La Crosse, WI – News, Weather and Sports |

Wastewater not wasted: generating electricity from cheese making

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Turtle Lake, WISCONSIN (WXOW)- GreenWhey Energy is a new bio-wastewater treatment and processing facility in Turtle Lake, Wisconsin.  The company handles wastewater from cheese and soy processing plants, which would normally be spread on crop fields. Due to tighter DNR regulations, spreading has been limited, so GreenWhey converts the wastewater into electricity, heat, and fertilizer.

GreenWhey Energy currently works with seven dairies that supply thousands of gallons of wastewater daily, which comes in via truck or pipeline.  Wastewater is then pumped into five holding tanks. It then goes into a larger equalization tank where additives are mixed in to create the proper pH levels. From there it heads to the digesters, which turn it into methane gas. It's then pumped into two huge engines, which create electricity.  The only by-products are water, bio-solids that can be used as fertilizer, and clean, green energy.
 

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