A Minnesota paper mill will be powered by a wastewater-to-energy facility by the end of the year.
The $15 million plant will have a biogas generator to capture methane to run the mill, The Star Tribune reported. The 550,000 gallons of water used at the mill each day will be pretreated onsite and then sent to the wastewater treatment plant. The mill recycles old corrugated containers into new paper for packaging, the paper reported. "It's a very unusual project for Minnesota," Pete Klein, vice president of finance with the St. Paul Port Authority, told the paper.