By NGT News.

The City of Portland, Ore., has plans to build a facility that converts biogas into compressed natural gas (CNG) vehicle fuel at the existing Columbia Boulevard Wastewater Treatment Plant (CBWTP).

According to the city's Bureau of Environmental Services, the project would help enable the plant to reuse nearly all of the 600 million cubic feet of biogas, a sewage byproduct, it produces annually.

The bureau says it is exploring several possible uses for the CNG, including fueling city-owned vehicles and selling it to Portland-area garbage haulers to fuel trucks or to a utility company.