Pope Douglas Solid Waste Management

Alexandria, MN 2022
composting system in building
snowy facility
aeration fan and ductwork
bunker walls in a building
trench floors
drone view of compost facility
composting system in building
snowy facility
aeration fan and ductwork
bunker walls in a building
trench floors
drone view of compost facility

Client Needs

Pope Douglas began collecting source separated organics in 2017.  As they expanded collections and ramped up capacity, they needed a composting solution that would work well in their climate.  The system needed to capture and control leachate, work in very cold weather, and minimize odor.  In addition, they required a system that could expand over time to meet the forecasted organics growth.  They developed the Glacial Ridge  Compost Facility, which will process up to 15,000 Tons/yr from Douglas, Pope, Grant, Stevens and Otter Tail counties.

ECS Solution

ECS developed a phased solution centered around high aeration rates and automated temperature control.  Phase 1A include four positively aerated static pile (ASP) zones to process ~2,500TPY using trench style aeration floors to uniformly distribute air and capture leachate.  Phase 1B delivers an additional 4 zones (8 total).  Phase 2 adds an additional 8 zones and adds ductwork to enable reversing + recirculating aeration.  This will help maintain low odor and quick throughput even as the volume of material on site increases.

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We worked with ECS to develop a system that is responsive to changing weather conditions and can reduce some of the operational guess work, labor, and equipment requirements compared to a traditional windrow composting process. Nathan Reinbold Environmental Coordinator

Biocycle Article – Composting Infrastructure Grows with the Flow

Contact ECS to learn more.

We want to learn how to support your composting goals!

4220 24th Avenue West
Seattle, Washington 98199

Tel: (206) 634-2625
Fax: (206) 634-1309