Napa Recycling and Waste Services

Napa, CA 2020
ductwork
mass bed compost pile
aeration fans
aeration floors in construction
Aerial view of Napa composting facility
compost video thumbnail
ductwork
mass bed compost pile
aeration fans
aeration floors in construction
Aerial view of Napa composting facility

Client Needs

The City of Napa’s contractor, Napa Recycling and Waste Services, had for years been composting mostly yard wastes using a simple static pile composting process. The City wanted to upgrade its compost facility to process more yard waste along with the addition of food waste and digestate. The system had to comply with the rigorous permit conditions required by the Bay Area Air Quality District and the California Water Board. The City wanted a robust system that would minimize fugitive odors and be capable of composting 50% additional feedstocks once their permitted amount was increased.

ECS Solution

ECS designed and supplied a 20 zone positively aerated, bio-layer covered aerated static pile system (CASP). The zones are arranged in four 5 zone “fan groups,” each of which is aerated with a single large, high efficiency fan. Sparger pipes are embedded below the concrete aeration floor to uniformly distribute air. In addition to controlling the airflow to each zone and logging comprehensive process data, the CompTrollerTM controls pile surface irrigation systems that further reduces emissions. ECS also provided extensive technical support throughout the long permitting process.

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For the past ten years ECS has provided reliable, knowledgeable and professional services and equipment for Napa Recycling’s organic processing business. Greg Kelley Managing Member, Napa Recycling & Waste Services

USCC 2023 Large Scale Composter of the Year Award!

Biocycle Article – Solid Waste Company Equipped For Increased Organics

Contact ECS to learn more.

We want to learn how to support your composting goals!

4220 24th Avenue West
Seattle, Washington 98199

Tel: (206) 634-2625
Fax: (206) 634-1309