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James Hooper(제임스 후퍼),Sang-Ryong Lee(이상룡),Kyungwon Min(민경원),Eun-Jeong Kim(김은정),Hyuck K. Ju(주혁),Yun-Seo Cho(조윤서) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5
Livestock manure is an important source of ammonia emissions globally, contributing to poor air quality through the formation of secondary inorganic aerosols. As per capita meat consumption increases, concentrated animal feeding operations (CAFOs) have become increasingly common, leading to large quantities of excreta that need to be treated in dedicated manure processing facilities. However, little is known about the scale of gaseous emissions from these facilities, and the potential impact they have on air quality and the surrounding environment. This paper presents NH<SUB>3</SUB>, SO<SUB>2</SUB>, NO<sub>x</sub> and PM<SUB>2.5</SUB> monitoring data from a modern commercial manure composting facility located in Paju, South Korea. During the five-week monitoring period during June – July 2020, average internal concentrations of NH<SUB>3</SUB>, SO<SUB>2</SUB>, NO, NO<SUB>2</SUB> and PM<SUB>2.5</SUB> were found to be 57.1 ± 1.3 mg m<sup>-3</sup>, 307.2 ± 17.4 μg m<sup>-3</sup>, 33.4 ± 3.2 μg m<sup>-3</sup>, 7.3 ± 0.8 μg m<sup>-3</sup>, and 36.9 ± 2.6 μg m<sup>-3</sup>, respectively. The NH<SUB>3</SUB> emission rate was calculated to be 7.28 ± 0.41 NH<SUB>3</SUB>-N mg min<sup>-1</sup> m<sup>-3</sup>, with scaled emissions rates of 1.85 ± 0.1 NH<SUB>3</SUB>-N g h<sup>-1</sup> m<sup>-3</sup> of manure compost, or 1.52 ± 0.09 NH<SUB>3</SUB>-N g kg<sup>-1</sup> of manure compost over the full 18-day composting period. The evidence suggests that the high-volume ventilation and scrubber system, maintaining a negative pressure environment inside the facility, was highly effective at limiting external emissions, and can be recommended as a suitable technology to reduce pollution from manure composting facilities.
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