Pendleton wastewater treatment plant biogas application - Case Study

About the Project

In 2011, the City began work on a cogeneration facility as part of the upgrades at the Waste Water Treatment Plant. The city was given us the ability to convert solids arriving at the Waste Water Treatment Plant into useful energy and high quality fertilizer. The system was designed to generate about 750,000 kWh per year, which translates into about $50,000 annually in saved utility costs. The fertilizer produced is spread over the City’s wheat field (see below) to reduce the amount of synthetic fertilizer applied.

Wastewater Treatment Plant

• 1.95 million gallons per day: dry weather
• 4.65 million gallons per day: wet weather