Odor Control System for Composting of Chicken Processing Waste
Composting of animal-solids and food waste generates smelly exhaust air requiring odor control. Bioganix Ltd, a waste recovery company based in Leominster, England, and Simdean Envirotec built an odor-control system to treat 34,000 m³/h (20,000 cfm) of air containing up to 300 ppm of ammonia and VOCs from in-vessel composting of chicken feathers and other poultry processing waste. A two-stage chemical scrubber followed by a biofilter reduces odor levels from over 450,000 odor units to below 300 odor units, resulting in less than 3 odor units in air at the plant boundary.
The chemical scrubber uses Q-PAC packing for gas absorption and NUPAC for mist elimination. The high capacity of these packings helps to minimize the scrubber footprint needed for efficient odor control without excessive fan power costs.
The system produces high-grade compost and ammonium sulfate, both useful as fertilizers.
Click here for the original Simdean and Bioganix paper.
