ABSTRACT
Odor control is similar to any other air pollution control problem. Choosing a new material with less odor potential, changing the process, using an add-on pollution control system such as a scrubber or an afterburner, or raising the stack height all achieve community odor control. When the tolerance level of a community changes, the odor control requirements also change. Odor control techniques fall into the following categories: activated carbon adsorption; adsorption with chemical reaction; biofiltration; wet scrubbing; combustion; and dispersion. Activated carbon adsorption is a viable method in many odor control problems. Biofiltration is an odor control technology that uses a biologically active filter bed to treat odorous chemical compounds. Wet scrubbing is another widely used technology for odor control. Combustion is an effective technique for odor control. The use of elevated emission points can reduce the odorant concentration at downwind ground level because of dispersion or dilution.
