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BioCNG by Digester for Grand Junction

July 25, 2014 in Biofuels, Biomethane, CNG, Infrastructure, NGVs by Rich Piellisch  |  No Comments

Renewable Fuel for Refuse Trucks, Street Sweepers, Pickups

BioCNG will supply fuel derived from wastewater for natural gas vehicles in the area of Grand Junction, Colo. The Madison, Wisc.-based firm is to design and build a biogas conditioning system and gas pipeline for the Persigo wastewater treatment plant jointly owned by the City of Grand Junction and Mesa County.

Wastewater gas–derived fuel from BioCNG will power transit buses and city fleet vehicles in and around Grand Junction, in southwest Colorado.

Wastewater gas–derived fuel from BioCNG will power transit buses and city fleet vehicles in and around Grand Junction, in southwest Colorado.


The BioCNG system will produce about 500 gasoline gallon equivalents per day from Persigo digester gas. The renewable CNG will be piped some six miles to Grand Junction’s existing compressed natural gas fueling station. The fuel will be used in Grand Valley Transit buses as well as Grand Junction city refuse trucks, street sweepers, and general utility pickups.

BioCNG-logo“The City of Grand Junction and GVT continue to purchase additional CNG vehicles to increase the overall CNG fleet,” BioCNG produce reports.

Controlling Costs

“This project will help control the City’s potential fuel price escalation,” Grand Junction city manager Rich Englehart says in the BioCNG announcement.

BioCNG says it will engineer the system, obtain all necessary permits, manage the construction, and handle commissioning and start-up. Future work may include investigation of an option to modify BioCNG system tail gas for use in the Persigo digester boiler to reduce treatment plant operating costs.

The Grand Junction project is supported by River City Consultants and other local vendors and sub-contractors, BioCNG says.

There are currently five other BioCNG systems in operation in the U.S.  at Sacramento, Calif.; St. Landry Parish, La.; Riverview, Mich. and Janesville and Dane County, Wisc. Their CNG output varies from 250 to 500 GGEs per day from approximately 50 to 100 standard cubic feet per minute (scfm) of biogas.


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Source: BioCNG with Fleets & Fuels follow-up

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