Raw Material Improved emission capture from specific process units Engineering and operations to reduce the fugitive emissions and Unloading and Controls: increase capture for directing to appropriate odour Storage Emission Capture control measures, such as constructing an enclosure or or Containment establishing negative pressure in receiving areas. This creates a more concentrated exhaust stream and eliminates the need to treat large volumes of general ventilation air. Combining multiple exhausts to one common stack is possible to allow for stack optimization or to implement one odour treatment system. Raw Material Maintain cooler temperatures in the storage area and Engineering Unloading and limit the storage time of non-frozen raw materials. Controls: Storage Material Handling Management Practices All Secondary Stack Optimization: Connect individual exhausts to the combined cooking Sources exhaust source. Effective stack design will improve dispersion to reduce off-site effects with vertical, unimpeded discharge at optimal stack height and velocity. All Secondary Thermal Treatment: Thermal oxidation is highly effective at removing odorous Sources Oxidizer VOCs. All Secondary Thermal Treatment: Odorous exhaust flow is directed to the site boiler Sources combustion chamber for incineration. Boiler Incineration All Secondary Biofilter Process exhausts are directed to a conditioning system Sources and biofilter where microorganisms biologically degrade the organic compounds. A trickling biofilter may be suitable. All Secondary Non-Thermal Activated plasmas gas is injected into waste gas stream Sources Plasma to oxidize VOCs. All Secondary Ozonation Concentrated ozone injected into odorous gas stream to Sources oxidize contaminants. All Secondary Oxidation Scrubber Chemical scrubbers that oxidize odours using hydrogen Sources peroxide, bleach or caustic soda may be suitable for gaseous air pollutants, especially organic pollutants and odours.
Raw Material Unloading and Storage Engineering Controls: Emission Capture or Containment Improved emission capture from specific process units and operations to reduce the fugitive emissions and increase capture for directing to appropriate odour control measures, such as constructing an enclosure or establishing negative pressure in receiving areas. This creates a more concentrated exhaust stream and eliminates the need to treat large volumes of general ventilation air. Combining multiple exhausts to one common stack is possible to allow for stack optimization or to implement one odour treatment system. Raw Material Unloading and Storage Engineering Controls: Material Handling Management Practices Maintain cooler temperatures in the storage area and limit the storage time of non-frozen raw materials. All Secondary Sources Stack Optimization: Connect individual exhausts to the combined cooking exhaust source. Effective stack design will improve dispersion to reduce off-site effects with vertical, unimpeded discharge at optimal stack height and velocity. All Secondary Sources Thermal Treatment: Oxidizer Thermal oxidation is highly effective at removing odorous VOCs. All Secondary Sources Thermal Treatment: Boiler Incineration Odorous exhaust flow is directed to the site boiler combustion chamber for incineration. All Secondary Sources Biofilter Process exhausts are directed to a conditioning system and biofilter where microorganisms biologically degrade the organic compounds. A trickling biofilter may be suitable. All Secondary Sources Non-Thermal Plasma Activated plasmas gas is injected into waste gas stream to oxidize VOCs. All Secondary Sources Ozonation Concentrated ozone injected into odorous gas stream to oxidize contaminants. All Secondary Sources Oxidation Scrubber Chemical scrubbers that oxidize odours using hydrogen peroxide, bleach or caustic soda may be suitable for gaseous air pollutants, especially organic pollutants and odours.