Den Dulk Dairy Farm – EPC: Biogas Ravenna

Ravenna, Michigan

Project Description

Reynolds and its affiliates successfully completed the design and construction of a 250-kW biogas facility for Den Dulk Dairy Farm in partnership with Grand Valley State University’s Michigan Alternative and Renewable Energy Center in Muskegon. The project demonstrated the versatile application of sustainable renewable energy technology by converting dairy manure into renewable energy while reducing the environmental impacts associated with manure management.

The facility incorporated a continuous stirred-tank reactor (CSTR) digester, which mixed and heated the manure to facilitate decomposition and methane production. A Bio-trickling H₂S scrubber provided low-maintenance biogas treatment, while a Capstone CR30 microturbine generated 30 kW of continuous electrical power and 45 kW of thermal energy and was capable of handling H₂S concentrations up to 70,000 parts per million. Biogas produced by the digester also powered an 80-kW combined heat and power (CHP) reciprocating engine.

Additional facility components included a 2.8 MMBtu boiler, mixing tank, gasholder, and biogas flare, providing a comprehensive system for renewable energy generation and sustainable dairy waste management.

At A Glance

Contract Amount:
$1,684,221

Completion Date:
January 1, 2008

Owner:
Den Dulk Dairy Farm

Engineer:
Bernhard Schulz, MSc. Eng.
and Sidock Group, Inc.

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