Canisters - Odorous air is blown through activated carbon canisters
(pictured right). The odor causing compounds are removed from the air
as they are adsorbed onto the carbon. The carbon media must be
Addition (Bioxide and Ferrous Chloride) - MSD currently uses calcium
nitrates (Bioxide) and ferrous chloride (FeCl2) for purposes of odor
control through chemical addition.
- Odorous air is blown through organic (ex. wood chips) or inorganic
(ex. plastic) media. Odors are eliminated through a natural biological
oxidation process. (Organic media biofilter is pictured right.)
Bed Scrubbers - Odorous air is blown up through a packed bed of
plastic media and chemically treated water is trickled downward over
the media. The hydrogen sulfide (rotten egg compound) and other
organic compounds are adsorbed and chemically oxidized by this
Incinerators - Fume incinerators (pictured right) thermally oxidize
odorous gases to eliminate the odorous compounds.
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