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Odorous By-Products Created
as contributors to rendering plant odors. The most common and potent include:
• These compounds are •Hydrogen sulfide (H2S): Has an extremely low-odor
•
•Organic acids and aldehydes: Responsible for sour and
pungent odors.
• Ketones and alcohols: • Hydrocarbons: The complexity and low detection thresholds of these
compounds mean that even trace amounts can result in odor systems must be designed to address a broad spectrum of
Odor Control Strategies: From Source to Stack
Effective odor control in rendering plants requires a source of the odor, others focus on removing or neutralizing odors in exhaust air streams before they are released into the
Odor Mapping, Monitoring
•Process analysis: Reviewing operational steps from
• Each rendering plant is unique, requiring tailored systems that factor in throughput, material mix, layout and local meteorology.
•Training and engagement:
•Community transparency:
Odor management is a blend of technology, process rigor
Good Housekeeping, Process Controls
rendering facilities should ensure that basic hygiene and
• Prompt material processing: and odor intensity.
• Keeps buildup of organic
• throughout or escaping the plant.
•Ventilation design: Directs odorous air to treatment
control systems.
Odor Removal Technologies
Once odorous air is captured, it must be treated before being vented. The most widely used air treatment methods in
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Rooftop air scrubber.
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