Engineered Compost Systems

AC Composter and CompDog - Covered ASP and Pipe-Less Aeration

The AC Composter^TM (Covered ASP) is designed to provide the operator with a cost-effective tool for controlling odors and maintaining optimal pile conditions during composting. It combines an innovative fabric cover with the ECS CoThempTroller^TM (ASP aeration control technology). The AC Composter^TM is appropriate for a wide range of facility sizes, and virtually all feedstocks. It can be used outside or inside of buildings to control the odor and humidity associated with in-building ASP technology. The AC Composter provides:

• Excellent odor control;
• Minimized evaporative water losses from the biomass;
• An effective barrier against vectors (birds, rats, flies); and,
• Broad range of aeration rates and process control options.

AC Cover

The AC Cover is made of tough, UV resistant, and waterproof fabric. The integral aeration system is configured according to the Operators aeration requirements (high-rate or curing). The cover includes straps for handling and securing. The AC Cover is placed and removed manually or with mechanized cover-rollers. The advantages of the AC Cover include:

• Does not absorb water and become heavy;
• Held in-place by the aeration system (negative suction "shrink wraps" the pile); and,
• Airflow characteristics do not change with fabric soiling.

Aeration, Control and Monitoring System

The AC Composter uses ECS’ proven CompTroller^TM control technology. Compost pile temperature data is collected and stored on the CompTroller. The batches of compost are easily tracked through the facility from start to finish. The piles are negatively aerated and flow is automatically controlled per Operator chosen set-points. The system exhaust air is scrubbed in a biofilter. The aeration rates can be set very low to conserve moisture and fan power, without releasing odors. Prior to removing the cover the aeration is increased to lower temperatures and raise Oxygen levels; this greatly diminishes the potential for odor releases.

Aeration Floors

ECS’ offers several aeration floor options: In-Slab aeration floor that collects condensate and minimizes labor; and, the highly innovative CompDog^TM(Patent Pending), pipe-less aeration floor (shown above) that provides excellent aeration characteristics while dramatically reducing facility costs.

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