Comcor has conducted all of the landfill gas-related engineering design work associated with the Trail Road Landfill Gas Facility in Ottawa since 2005.
Landfill gas is currently collected from the Trail Road landfill and sent to a 6.3 MW Landfill Gas to Energy Facility that was developed and is owned by PowerTrail Inc., an Ontario-based partnership between Energy Ottawa Inc. (EOI) and Integrated Gas Recovery Services Inc. (IGRS), Comcor’s partnership with Walker Environmental Group. Comcor designed the utilization facility that was constructed in 2006.
Since commissioning, Comcor has operated and maintained the facility for PowerTrail.
Over the years Comcor has designed multiple landfill gas collection system expansions. A challenge at the landfill at times has been high leachate levels and the need to collect landfill gas from active areas of the site in order to control odours. Comcor designed and supervised the construction of sacrificial vertical gas well manifolds systems in a few active areas of the site. This was very successful at controlling odours and maximizing landfill gas collection for the utilization facility.
In 2005, Comcor designed a temporary air injection system along the south side of the landfill to mitigate gas migration. Over time this system has been converted to both permanent below ground piping and ultimately a full-scale low-quality gas flare and mechanical system which was commissioned in early 2021.
Comcor staff work closely with the landfill to ensure that landfill gas control is always managed in an effective manner to meet the needs of the City’s regulatory requirements as well as PowerTrail’s electrical generating facility.