Rendering Odor Control

Odor control and abatement is a concern of many rendering and animal protein companies. Aside from being an environmental issue, odorous gases & compounds can also pose problems for nearby residential communities, where residents expect an odor-free environment.

We have a custom blend of reactants to treat both wet air scrubber and fugitive odors associated with animal rendering plants.  REACT-OX® and HYDROFRESH product lines have been lab studied and field tested to prove they work.

Hydro Solutions, Inc. has over 15 years of experience in addressing these issues. Using state-of-the-art testing, odor surveys, and equipment surveys, we are able to identify problem areas and develop an engineered solution to remove odors below thresholds.

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Compound Emissions

The airstream from a rendering operation could contain a number of compounds, according to a 1995 report by the EPA. Below are the most common compound emissions, according to the EPA report:

• Particulate
• Ammonia
• Hydrogen Sulfide
• Organic Sulfides
• Disulfides
• C-4 to C-7 Aldehydes
• Trimethylamine
• C-4 Amines
• Quinoline
• Dimethyl Pyrazine
• Other Pyrazines
• C-3 to C-6 Organic Acids
• C-4 to C-7 Alcohols
• Ketones
• Aliphatic Hydrocarbons
• Aromatic Compounds

Review the entire EPA report here.

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Plant Odor Survey

One of the value-added services we offer customers of Hydro Solutions is a comprehensive survey of plant odors. Starting an odor removal program is a great opportunity to have a fresh look at your facility to identify areas of concern that may be a source of odor, and establish a benchmark for continued improvement.

Here is a partial list of areas we review during a plant odor survey, each of which can be air tested for common emission compounds that are generally found to generate odor complaints.

• Open doors or bays
• Negative vs. positive air pressure in rendering plant
• Wall fans
• Roof vents
• Loose, blowing MBM
• Leaks in condensate system
• Lagoon issues
• Grease tanks
• DAF systems

More on Air Scrubber Treatment or Fugitive Odors