green mountain technologies

green mountain technologies

composting for a greener future since 1992

Learn About GMT

Our latest Aerated Static Pile facility is designed to process 75,000 tons of green waste and food waste per year.

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UW-Green Bay (an an Eco U, University) new campus composter diverts thousands of pounds of food waste from landfills.

Our Mission


We aim to help organizations around the world realize the economic and environmental gains that can be achieved by a well-designed composting system.

Aerated Composting Systems


AERATED STATIC PILE

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Above and below grade air piping allows aerates the compost, reducing turning. The automated system controls temperature and bio-filtration removes odors.
Capacity: 5-2,500 tons/day
Cost: $20k+

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TURNED AERATED PILE

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The fastest way to make compost on a large scale. This design allows for the most efficient handling, smallest footprint, and the highest throughput possible.
Capacity: 150-2,000 tons/day
Cost: $500k+

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IN-VESSEL COMPOSTING SYSTEMS


Containerized Compost System

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Composting takes place in controlled batches with airtight vessels (CompTainers) that can be moved and emptied by roll-off trucks. Modular system allowing for growth and complete control.
Capacity: 1 - 100 tons/day
Cost: $40k - $1 million

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earth flow

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The Earth Flow™ is an automated in-vessel composting system with integrated mixing and aeration. The full automated Earth Flow reduces labor costs and creates gorgeous compost.
Capacity: 300 lbs – 10 tons/day
Cost: $45k – $145k

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earth cube

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The neighborhood-scale composting system for food waste. Easy and affordable. Complete enclosure prevents animals and bugs from accessing the compost. Roof-mounted biofilter eliminates smells.
Capacity: Up to 50lbs per day
Cost: $3k - $5k

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Compost consulting services


We design state-of-the-art composting facilities and have done so for more than twenty-five years.  GMT has more than 30 municipal and commercial compost facilities ranging from 3,000 to 200,000 tons per year that have been efficiently composting curbside collected yard debris, food waste, biosolids and agricultural wastes. Our design staff has over 100 years combined industry experience in the composting industry.  Our design services will help you design effective processes for odor and leachate capture and treatment. We also redesign existing facilities to increase capacity or mitigate environmental impacts. We aim to design facilities that are still operating and successful twenty-five years from now.

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25+


Years Composting


2,272,600


Tons of Organic Waste Diverted

395


# of GMT Compost Systems


936,350


Tons of Compost Created

customers


"Temperatures have been great, around 150 deg F. We have the right balance of stuff going in.
Product is looking great. We've got some black gold. It's a big hit!"
Matt Post, Director of Horticulture at Hudson River Park Trust EARTH FLOW IN-VESSEL COMPOSTING SYSTEM
"The Earth Cube is great! Very easy to ‘plug-and-play’ and no spaces for animals or bugs to get in. I really appreciated the training and detailed instructions." Jennifer Baker, The Nature Conservancy THE EARTH CUBE "Our compost quality is much better and we are producing it quicker." Daryl Goodwin, EnviroSmart Compost Facility Delta B.C. TURNED AERATED PILE (TAP)

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ready to start composting?

Contact our team today, and start composting. We’ll help you find the perfect compost system for your site.

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