AC Composter™ - The Affordable Road to Compliance
Aerated static pile Systems
At ECS, we offer two types of Aerated Static Pile Systems to suit the needs of your facility: AC Composter™ and Standard ASP.
Please select which type you would like to learn about:
> AC Composter™
Standard ASP
AC Composter™ - (asp with covers)
AC Composter™
700 yd3 piles
| AC Composter | 5 to no upper limit tons a day | SSO, BS | Limits: deep snow, extreme cold | Very good control of air emissions |
The AC Composter™ is an extremely versatile Covered Aerated Static Pile (ASP) System that is an excellent technology choice for both new facilities and upgrading existing windrow facilities.
It was specifically designed to provide a cost effective approach for controlling odor, VOC and NH3 emissions; and provide operators with the same broad range of process options found in all ECS systems.
It works well for mid-size to very large commercial compost facilities and will scale down to smaller facilities processing as little as 2,000 tons of feedstocks per year.
It can be used with in-floor, CompDog™ and pipe-on-grade aeration components. It can be used outside in discrete piles/zones; with a bunker-wall configuration to reduce the facility footprint; or in buildings to reduce headspace to control pile surface emissions of odor and humidity.
The AC Composter provides:
- Complete capture and excellent reduction of VOC and Greenhouse Gas emissions
- Superior odor control
- Minimized evaporative water losses from the biomass
- An effective barrier against vectors (birds, rats, flies)
- Accommodates a broad range of aeration rates and process control options
- Neat, clean and professional looking appearance
AC Composter Covers
The AC Cover is made of tough, UV resistant, and waterproof (impermeable) fabric. The Cover is designed for negative-only aeration systems. The AC Cover unlike microporous fabrics, does not absorb water and become heavy; the airflow characteristics do not change with fabric soiling, it can be repaired in the field and includes straps for handling and securing.
The AC Cover is deployed and recovered with an ECS Straddle Cover-Winder (for large facilities), with an ECS Side Winder (for smaller facilities), or one of two end-of-pile options.
The AC Composter uses ECS' proven CompTroller™ control technology. Compost pile temperature data is collected and stored on the CompTroller™. Negative aeration is automatically controlled per operator chosen set-points. The aeration rates can be set very low to conserve moisture and fan power, without releasing odors. The exhaust process air captured by the AC Cover is scrubbed in an ECS designed and site built biofilter.
The AC Composter™ aeration systems are designed for long year service life. All the aeration components that are exposed to the corrosive environment of composting are made of stainless steel or polymeric materials. Aeration to the individual zones is continuous AND automatically controlled by the CompTroller™.
The aeration system provides a wide range of air-volumes. At low flow rates drying and cooling are significantly reduced while the cover prevents odors from being released. At high flow rates the material can be more oxygenated and temperature controlled prior to removing the cover to minimize odor events and improve drying for better screen yields.
The AC Composter™ and CompDog™ (pipe-less aeration system)
Click here to watch the video of our AC Composter™ and CompDog™ working together!
Combining the AC Composter™ and CompDog™ aeration floor system is a cost effective way to upgrade an existing facility and is an excellent alternative to using in-slab or above grade pipe. The CompDog™ uses an inflatable form to create aeration vaults under an ASP pile. The ASP pile is built on top of the CompDog™ and is allowed to settle overnight. In the morning the CompDog™ is removed and leaves behind an aeration vault used for air distribution through the biomass. The CompDog™ system includes a CompDog™ Roller, and Inflation and Deflation mechanisms.
AC Composter™ and CompDog™ working together
This AC Composter™ aeration hallway shows a space efficient back-to-back configuration
AC Composter™ facility shown from the driver seat of the Straddle Cover Winder
The AC Composter™ covered aerated pile system and CompDog™ aeration floor system are covered by US Patents 7,642,090, 7,713,731, and other US and foreign patents pending.
The ECS AC Composter™ is also available as a pilot system so that you can try it at your facility with your feedstocks. More about AC Composter™ pilots.
Please Note: The AC Covers and CompDog™ are only sold as components in an AC Composter™ system. Exceptions are made for ASP facility upgrades on a case-by-case basis.
Resources
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"Things have been going well and the (ECS) Aerated Static Pile Composting System has worked great for nearly one year now. It has allowed for much more efficiency in our operations, produces a more consistent quality product, and very importantly has allowed us to manage the odor issues we had previously. Our markets are growing for finished compost and the future looks bright. We have showcased the facility to the Missouri Department of Natural Resources and US EPA Region VII officials and to elected officials from throughout the state last fall during the Missouri Municipal League Convention held in St. Charles County and all who have visited have been very impressed."Russell Batzel