WASTEWATER
By Rick LallishPacked bed is the most common form of wet scrubber odor control. How is this accomplished?A. Hypochlorite adsorptionB. Electrolytic chemical scrubberC. Chemical absorptionD. Biological oxidationAnswer: C. The common packed bed wet scrubber system uses chemical absorption for odor control. It differs from the chemical mist scrubber by using packing material in the contact chamber and the recirculation of the scrubbing chemicals. It is advantageous due to very efficient mass transfer and easily handles changes in odorous concentrations. The biggest disadvantage is high maintenance. There are many methods of odor control, and the main goal is to maintain a good relationship with neighbors of the
