Corona Plasma Multireactors for The Removal of Ammonia in Closed House Livestock

Abstract

We report the use of cold atmospheric plasma (CAP) generated by a corona reactor to remove ammonia in closed livestock housing. An assembly consisting of a reactor, a power supply, and a fan to circulate air into the reactor is called a cold plasma equipment (CPE). The basic physical parameters of the corona reactor such as I-V characteristics and charge mobility were determined and compared with the results of previous research. Ammonia concentration was measured at positions within a distance of 1 m to 5 m (with 1 m intervals) from the CPE placement. At each position of the CPE the ammonia concentration decreases negatively exponentially as a function of time. The best ammonia gas reduction percentage (91.50%) was obtained in 90 minutes at a distance of 1 m from the CPE. These results prove that CAP is effective in reducing ammonia gas in closed cage livestock. CAP has the potential to be an alternative technology for removing odor-causing gases from gas streams.