Consulting

Comcor offers classic engineering consulting services to public and private sector clients. These services include feasibility studies, impact assessments and conceptual as well as detailed design and specification preparation. Field testing and actual data gathering is sometimes carried out to support theoretical engineering predictions and modeling to determine landfill gas generation rates and future gas collection projections. Consulting services are provided for landfill gas migration and control systems as well as flaring and utilization systems.

The firm is registered to practice professional engineering in most Canadian jurisdictions.

Testing

We have the equipment and experience to mobilize a temporary flaring system to any site in order to physically assess the quantity and quality of landfill gas produced at a site. The test system is setup to extract landfill gas through temporary collection pipes and combust it in a mobile flare. We hold the necessary MOE approvals to operate such a test flare in Ontario.

Project Assessments

For some landfills, landfill gas utilization is not feasible due to the site's size, remoteness, age or for other reasons. However, a landfill owner may still desire a landfill gas collection system be installed in order to mitigate odour, environmental or safety concerns.

Sometimes gas migration control is the only requirement and can be addressed by site perimeter migration control systems, such as passive venting or air injection techniques. We have designed and constructed cost effective landfill gas collection or migration control systems that effectively address these potential issues.

Potential utilization projects are examined for their economic and technical feasibility. Utilization projects can include direct use of gas at a nearby industry or natural gas user, or the generation of electricity and/or heat for sale. We examine all aspects of a potential utilization project, including design and construction, negotiation of gas rights or gas purchase agreements as well as operation of the utilization system for the life of the project. Our triple bottom line assessments examine the economic, social and environmental benefits of all potential projects.

Engineering Design

Each project is unique and we have many years of experience completing the detailed design of all aspects of landfill gas gathering as well as condensate management systems. These are designed to specifically suit the attributes of the site, taking into consideration the overall physical layout, landfill cover systems, access to liquid disposal and positioning of the mechanical system. The vacuum, compressed air and flare systems are each designed in an integrated way to optimize the purpose, useful life and ultimate size and gas capacity of the system.

Electrical generation facilities are designed to take into account the various mechanical, structural and electrical components that make up the gas to energy facility. Reciprocating engines or other gas fired generators are considered based on many factors in addition to costs and reliability. Other potential options for landfill gas or biogas utilization include Direct Use (medium BTU), CNG and LNG. For any application, several gas treatment options may be required depending on the quality of landfill gas and the end use of the gas. Gas filtration, refrigeration as well as removal of contaminants such as siloxanes, hydrogen sulfide or inerts need to be examined for every application.

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