Gardiner Farms Biogas & Co-Gen
Owner		Gardiner Farms, Inc.
Location		West Perth, Ontario
Herd size		200 beef cattle
Off-farm Substrates		FOG, SSO
Design
Digester Size	1500 m3
Feedstock Handling	100 m3 receiving tank for solids 100 m3 receiving tank for liquids Manure pumped from the barn directly into digester
Development Time	2008 feasibility study 2009 design 2010 begin construction 2011 commissioning
Process Volume	50 m3 / day
Retention Time	30 days
Gas Volume	125 m3 / hr
Electrical Production	250 kW
Background
The Gardiners wanted to diversify their farm operations and have a viable succession plan for their son, who is currently operating the farm. Additionally the consideration of an anaerobic digestion facility was further supported by Provincial funds having been made available for the construction of such systems.   The use of Rumensin necessitated a different start-up procedure. While the slow introduction of Rumensin manure had been directed, the operators chose not to follow these instructions. Thus the Rumensin manure did not allow the methanogenic bacteria to grow, and the digester had to be re-started.   In the second start-up, dairy cow manure from an adjacent farm, as well as effluent from a nearby digester were brought in and the methanogenic bacteria were acclimatized to the Rumensin manure in prescribed quantities and feeding rates until full production was reached.   The system’s effluent fertilizer is applied to the farm’s crop fields.

 

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