Converting wastewater treatment biogas into renewable natural gas.
Project Type
Wastewater Treatment
Constructed Value
$5.25MDelivery Method
CM/GCArchitect/Engineer
Carollo Engineers / Owner: South Platte RenewThe challenge
At the Littleton/Englewood Water Resource Recovery Facility, biogas produced during anaerobic digestion had historically been used to heat digesters, with excess gas flared through a waste gas burner. The District sought a way to capture more value from this resource by converting the biogas into renewable natural gas (RNG) that could be injected into a natural gas pipeline. Doing so required developing a treatment system capable of processing digester gas to pipeline-quality standards while integrating the new infrastructure with the facility’s existing operations.
highlights
Colorado’s first WRRF-to-RNG pipeline injection system
Renewable natural gas to Xcel pipeline
Challenge met
Filanc served as the Construction Manager/General Contractor (CMGC) for the project and constructed the biogas treatment system that converts digester gas into renewable natural gas. The system allows treated gas to be injected directly into Xcel Energy’s natural gas pipeline for downstream use as transportation fuel.
The project represents the first system in Colorado to convert raw biogas from a water resource recovery facility into renewable natural gas for pipeline injection, creating a beneficial use for a byproduct of wastewater treatment.
Recent Projects
Morro Bay Water Reclamation Facility
MF/RO Facility for Agriculture
