Operations supervisor Mike Patrick stands among the anaerobic digesters at the central wastewater treatment plant in Tacoma, Wash., on Thursday, Dec. 14, 2017. The anaerobic digesters produce methane gas which is moved via the orange lines to a holding tank and then used to heat buildings and water throughout the plant. Excess methane is burned off. The treatment plant wants to use the excess methane to produce renewable natural gas for use as transportation fuel.
Operations supervisor Mike Patrick stands among the anaerobic digesters at the central wastewater treatment plant in Tacoma, Wash., on Thursday, Dec. 14, 2017. The anaerobic digesters produce methane gas which is moved via the orange lines to a holding tank and then used to heat buildings and water throughout the plant. Excess methane is burned off. The treatment plant wants to use the excess methane to produce renewable natural gas for use as transportation fuel. Joshua Bessex joshua.bessex@gateline.com
Operations supervisor Mike Patrick stands among the anaerobic digesters at the central wastewater treatment plant in Tacoma, Wash., on Thursday, Dec. 14, 2017. The anaerobic digesters produce methane gas which is moved via the orange lines to a holding tank and then used to heat buildings and water throughout the plant. Excess methane is burned off. The treatment plant wants to use the excess methane to produce renewable natural gas for use as transportation fuel. Joshua Bessex joshua.bessex@gateline.com

Tacoma wants to turn your poop into renewable fuel. Really.

December 15, 2017 04:25 PM