Scott County, Minn. Looks to Lower Carbon Footprint with Proposed Anaerobic Digester

Scott County, Minn. could soon be the site of a new anaerobic digester, helping reduce the state’s carbon footprint.

Dem-Con Companies wants to build a $100 million facility to convert organic waste into natural gas and biochar. Biochar can improve soil health, lower greenhouse gas emissions, and improve soil moisture.

Bill Keegan, president of Dem-Con, says the process could generate 185,000 MMBtus of natural gas and 10,000 tons of material annually during the project’s 30-year life.

“It’s oxygen-free, it’s a closed vessel,” Keegan explains. “You can put food waste in, actually culture this with a bacteria similar to your stomach, and food waste goes in, and liquids and solids and gases come out.”

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