Commercial & municipal composting
Challenges of Commercial & Municipal Composting
Municipal composting facilities for cities and towns face the same challenges as commercial composting facilities: they need to operate efficiently and produce valuable products while managing environmental factors such as stormwater, leachate and odors.
Pierce Lewis, Co-Founder Dirt Hugger, on his experience with GMT
Stormwater Management
With PFAS and groundwater concerns on the rise, it has become more pertinent to ensure contaminated runoff is contained and properly treated. Our reliable and cost-effective solutions ensure that all contact water is controlled and either treated prior to discharge, or reused in the composting process.
Pathogen Destruction
GMT’s deep understanding of aeration requirements, compost recipes, and temperature monitoring ensures outstanding pathogen destruction, with automated temperature tracking in exportable csv files.
Odor Management
The number one reason for facility closure is odor violations. We’re proud to report that none of our clients have been shut down due to odors. Our systems allow you to operate even in the most densely populated regions.
Permitting and Public Relations
Commercial and municipal composting facilities require extensive permitting. Through decades of experience, we have learned how to work with regulators and permit facilities that protect both the environment and objectives of our clients.
Our Solutions
We provide composting technology, facility design and consulting services to hundreds of commercial and municipal composting facilities of all sizes around the world. Comprehensive planning and operational consulting are core to every project.
1. Turned Aerated Pile (TAP)
The Turned Aerated Pile (TAP) process is the fastest way to make compost on a large scale. A six acre TAP site with two equipment operators can process over 300 tons per day (100,000 tons per year) from the initial grinding process to the final loadout making this the most streamlined and profitable system available today.
Low
Opex
Small
Footprint
High Quality
Compost
3+ Week
Active Process
2. Aerated Static Pile (ASP)
ASP composting eliminates the need for mechanical turning of the material, while speeding up the composting process to just 30 days, plus 4-8 weeks curing time (compared to 6+ months with turned windrow composting). Our ASP systems can reduce footprint and material handling costs by as much as 75% when compared to windrow composting.
Low
Opex
WebMACs
Controls
Low Handling Costs
4+ Week
Active Process
3. Aerated Static Pile (ASP) + Geomembrane
Our geomembranes are PFAS free, and eliminate 90%+ emissions and VOCs from your compost pile. In most circumstances we do not recommend Geomembranes since you cannot aerate these systems as effectively, the membranes must be replaced every 5 to 10 years, and putting membranes on or off is inefficient.
Medium
Footprint
High
Opex
Low
Odor
6+ Week
Active Process
4. Tunnel Composting System
The CompoBox Tunnel System is the most cost effective in-vessel composting system on the market. Each CompoBox is enclosed within a hoop house and accessed through hydraulic load doors. Once filled the CompoBox tunnel system processes the feedstocks in positive, negative or reversing aeration capturing and treating all exhaust air.
Low
Opex
Fully
Enclosed
Minimal
Odor
4+ Week
Active Process
Related Projects
Learn More About Commercial & Municipal Composting
“Phoenix has authored one of the most remarkable sustainability turnaround stories in the country, and our new composting facility starts an important new chapter. This award is a testament to our partners and their commitment to make Phoenix one of the most sustainable and resilient cities in the world.”
- Greg Stanton, Mayor, City of Phoenix
