Abstract:ince, the ammonia removals of four types of low-temperature plasma equipments (high-energy wirebarrel, high-energy wire plate, low-energy wire barrel, low-energy wire plate) were studied throughpilot test. The results showed that with constant high ventilation rate in the pig house, the high-energywire barrel equipment had the highest ammonia removal efficiency of 70.03%. The addition of catalystwould increase the ammonia removal efficiency by 4.64%. When the initial concentration of NH3at thefan outlet of the pig house was 1.97~5.89 mg/m3, the concentration of NH3was reduced to 0.50~0.92mg/m3after treatment by the high-energy wire barrel equipment. The operating costs of the system insummer and winter were 258.39 yuan/d and 103.36 yuan/d, respectively. Close-