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The Benefits of Biogas

EpCOR Utilities Inc EDMONTON, canada
CDM Smith assisted EPCOR in the development of a biogas master plan for the Gold Bar wastewater treatment plant. 
Reducing a wastewater treatment plant’s energy consumption has economic, environmental, social, and operational benefits. To help EPCOR take advantage of these benefits, we assisted in the development of a biogas master plan for the Gold Bar wastewater treatment plant. Offering flexibility and optimal advantages for Gold Bar and the surrounding community, the plan integrates boiler operation and cogeneration, as well as biomethane and vehicle fuel generation.
$
Projected total cost of 2016 water treatment overhaul
%
Estimated Productivity increase after launch
Water Treatment plant expansion project
Cur­rently, bio­gas is used to fuel boil­ers for space and process heat­ing at the fa­cil­ity. Con­tin­u­ing this valu­able prac­tice while in­ter­con­nect­ing Gold Bar op­er­a­tions with the nearby Clover Bar waste­water treat­ment plant would allow Clover Bar to ben­e­fi­cially reuse ex­cess gas for en­ergy-in­ten­sive di­ges­tion, dry­ing and gasi­fi­ca­tion ac­tiv­i­ties. Gold Bar would gen­er­ate a rev­enue stream through the sale. Also, a 1-megawatt co­gen­er­a­tion sys­tem at Gold Bar would pro­duce ap­prox­i­mately 8 mil­lion kilo­watt hours of elec­tric­ity and off­set ap­prox­i­mately 20 tons of car­bon diox­ide emis­sions per year.
Reducing a wastewater treatment plant’s energy consumption has economic, environmental, social and operational benefits.
Biomethane—which can be used interchangeably with natural gas for a variety of purposes—can be generated from biogas, and achieves the highest value as a vehicle fuel. In addition, a partnership with the Clover Bar landfill would reap multiple rewards, including the use of biogas for garbage truck fuel and improved solid waste management. Creating co-digestion with the addition of organic waste from the landfill would make use of a previously wasted resource and increase Gold Bar’s production of methane for beneficial use.

Planning for Flexibility

Developing a biogas master plan is enabling the Gold Bar wastewater treatment plant to take advantage of multiple energy sources.

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