The characteristics of ammonia emission by gestation swine in mechanically ventilation facilities in winter

Junsu Park; Min-Woong Jung

doi:10.11109/JAES.2022.24.1.012

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2022 Vol.24, Issue 1 Preview Page Next Page

Research article

The characteristics of ammonia emission by gestation swine in mechanically ventilation facilities in winter 겨울철 강제환기식 임신돈사의 암모니아 배출 특성

30 April 2022. pp. 12-17

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Abstract

Ammonia is a gaseous material that is a compound composed of nitrogen and hydrogen. In this study, we analyzed the characteristics of ammonia emissions at mechanically ventilation facilities gestation swine. We measured the NH₃ concentration, ventilation, and internal temperature and humidity in the period from December 3, 2020 to January 17, 2021. The average concentration of NH₃ during the measurement period was 19.6 ± 3.7 ppm, and the inlet was measured at 2.5 ± 1.2 ppm. The average temperature was 19.0 ± 1.1°C and 25.5 ± 3.7% of relative humidity. And in the case of ventilation, the average was measured to be 6116.7 ± 2145.0 m³/h. As a result of calculating NH₃ emissions during the measurement period, the average was 13.6 ± 7.4 g/day·pig. In addition to correlation analysis for the effect analysis by measurement factor, in the case of ventilation, there was a strong positive correlation with NH₃ emission (r = 0.820), internal temperature (r = 0.813), and relative humidity (r = 0.715). As a result of calculating the final emission coefficient based on the analysis results, the NH₃ emission coefficient inside the gestation swine in winter was calculated as 11.1 g/day·pig, and finally as 4.0 kg/year·pig.

Keywords

Ammonia emission

Gestation

Pig

Winter

Mechanically ventilation

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Information

Publisher :The Korean Society of Animal Environmental Science & Technology
Publisher(Ko) :(사)한국축산환경학회
Journal Title :Journal of Animal Environmental Science
Journal Title(Ko) :축산시설환경학회지
Volume : 24
No :1
Pages :12-17
Received Date : 2022-03-21
Revised Date : 2022-04-17
Accepted Date : 2022-04-19
DOI :https://doi.org/10.11109/JAES.2022.24.1.012

Journal of Animal Environmental Science ISSN:1226-0274(Print) 축산시설환경학회지

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