강제환기식 자돈사 내 암모니아 배출 특성 연구 = A Study on the Ammonia Emission Characteristics of a Mechanically-Ventilated Weaned Pig Facility in Korea

다국어 초록 (Multilingual Abstract)

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다국어 초록 (Multilingual Abstract)

One of the harmful substances produced by livestock manure is ammonia (NH3), which is emitted at a high rate. Additionally, NH3 reacts with sulfur oxides (SOx) and nitrogen oxides (NOx) in the atmosphere to produce fine particulate matter (PM2.5). However, the management and countermeasures for NH3 in livestock facilities were found to be inadequate. To establish effective measures, an NH3 emission factor that complies with certified methodologies is required. This study calculates the emission factor by monitoring NH3 concentration and ventilation between September 2022 and May 2023 in a mechanically-ventilated enclosed facility. The data measurement was performed in accordance with the VERA test protocol from Europe, and NH3 concentrations were monitored in real-time using photoacoustic spectroscopy measurement equipment. The average NH3 concentrations for Rooms 1, 2, and 3 during the entire period were measured at 0.96 ± 0.39 ppm, 1.20 ± 0.57 ppm, and 1.34 ± 0.71 ppm, respectively, with an overall average of approximately 1.17 ± 0.49 ppm. The average ventilation was recorded at 2,782.0 ± 1,510.4 m³/h, with an average internal temperature of 26.0 ± 1.5 °C and a relative humidity of 63.9 ± 5.2%. The average emission factor per room was calculated as 0.14 ± 0.03 g/day/pig for Room 1, 0.19 ± 0.07 g/day/pig for Room 2, and 0.15 ± 0.05 g/day/pig for Room 3. Ultimately, this study determined the average NH3 emission factor for the weaned pig facility to be 0.16 g/day/pig.

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