Allwood Recyclers CASE STUDY

ASP Composting

Operator: Allwood Recyclers
Location: Troutdale, OR
Feedstock: Green Waste
Capacity: 40,000 T/year
Year Installed: 2019
Project Components:

Client’s Requirements

After many years of composting green waste in a static mass bed, Allwood decided it was time to improve throughput and reduce odor. They wanted a solution that was budget friendly, worked on the existing parcel of land, and could be incorporated into their existing asphalt pad.

Our Solution

GMT was hired to conduct a feedstock evaluation to assess the effectiveness of Aerated Static Pile (ASP) composting at the Allwood facility. After a successful trial, Allwood hired GMT to design a positive only below grade aeration system. GMT designed an 8-zone pipe at grade aeration system, that could be installed into the existing pad. To help save the customer money, GMT worked directly with the clients construction team to cut trenches in the concrete, lay the ducting, and repave the trenches.

“Green Mountain Technologies has proven their expertise and professionalism, and they are always just a phone call away and offer their assistance promptly. Allwood Recyclers, Inc. was an existing facility for over 20 years prior to working with GMT to design our ASP system…I was very impressed with how they worked with our challenges and made adjustments to their design to make everything work for our facility…I have enjoyed working with the GMT team and would recommend them to anyone looking for a composting system design.”

- Mark Wubben, VP of Allwood Recyclers, Inc. Fairview, OR

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