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오영숙,김기현,구윤서,김명수,설미진,전승세,최여진,안대희 한국냄새환경학회 2006 실내환경 및 냄새 학회지 Vol.5 No.1
Odor emission characteristics of unit processes in 10 livestock farms and 3 manure treatment facilities in Kyonggi province were examined in terms of odorous compound concentration and dilution ratio values of the threshold limit measured by instrumental analysis and air dilution sensory test, respectively. The highest odor concentration was detected at the compositing process unit of each facility and the dilution ratio showed high correlation with the treatment capacity as well as hygiene of the facility. Odor intensities in some facilities showed severe fluctuations (10 to 27 times difference) in response to the wind speed and direction as well as other weather conditions. According to the instrumental analysis, the major odorous compounds in the research area appeared to be ammonia, hydrogen sulfide, trimethyl amine, acetaldehyde and carbonyl compounds. Although some facilities breed same livestock, the types of odorous compounds as well as their concentration profiles were dependent on the type of composting process and management skill. In addition, dilution ratio of the threshold limit did not always show positive correlation with the odorous compound concentrations, which indicates the necessity of applying both methodologies, sensory test, and instrumental analysis.
구윤서,김성태,최종혁,오영숙,설미진,전승세,안대희 한국냄새환경학회 2006 실내환경 및 냄새 학회지 Vol.5 No.1
Odor emission effects of unit processes in 10 livestock farms and 3 manure treatment facilities in Y and I cities, Kyonggido, were simulated using puff model after the odor emission rates were measured. 2 degree level of odor intensity and 1 degree level of it were predicted by the puff model in the adjacent area of odor emission source and within the 8km radius range of it, respectively. As real time odor modelling system was operated at specific manure based fertilizer making facility located in Y city, the highest odor concentration was predicted at the entrance of that facility and relatively lower odor intensity was estimated at the place more or less be aparted from the emission sources. The higher odor intensity was evaluated at dawn and evening because the odor was accumulated in case of stable air condition.
안대희,오영숙,김기현,구윤서,김명수,설미진,전승세,최여진 한국냄새환경학회 2006 실내환경 및 냄새 학회지 Vol.5 No.1
Odor emission characteristics of unit processes in 10 livestock farms and 3 manure treatment facilities in Kyonggi province were examined in terms of odorous compound concentration and dilution ratio values of the threshold limit measured by instrumental analysis and air dilution sensory test, respectively. The highest odor concentration was detected at the compositing process unit of each facility and the dilution ratio showed high correlation with the treatment capacity as well as hygiene of the facility. Odor intensities in some facilities showed severe fluctuations (10 to 27 times difference) in response to the wind speed and direction as well as other weather conditions. According to the instrumental analysis, the major odorous compounds in the research area appeared to be ammonia, hydrogen sulfide, trimethyl amine, acetaldehyde and carbonyl compounds. Although some facilities breed same livestock, the types of odorous compounds as well as their concentration profiles were dependent on the type of composting process and management skill. In addition, dilution ratio of the threshold limit did not always show positive correlation with the odorous compound concentrations, which indicates the necessity of applying both methodologies, sensory test, and instrumental analysis. 축산분뇨처리시설의 발생악취특성을 조사하기 위하여 경기도 Y시 및 I시에 소재하고 있는 13개의 사업장을 대상으로 공기희석관능법 및 기기분석법을 통하여 악취물질의 농도와 감지한계희석배수를 조사하였다. 연구결과 퇴비화시설에서의 악취도가 가장 높게 나타났으며, 악취도는 사업장의 규모 및 축사의 위생환경에 밀접한 영향이 있음을 확인하였다. 특정사업장의 경우 기상상태에 따른 풍향, 풍속의 영향에 따라 악취강도의 차이가 최소 10배에서 최대 27배까지 나타남을 확인하였다. 기기분석 결과에 의하면 축산분뇨처리시설의 주요악취 유발물질은 암모니아. 황화수소, 트리메틸아민(TMA), 아세트 알데하이드 및 카보닐계인 것으로 나타났다. 한편, 같은 종류의 가축을 사육하는 사업장이라 할지라도 악취를 유발하는 물질 및 발생농도는 퇴비화공정의 형태와 관리방식에 밀접한 관련이 있으며, 감지한계희석배수와 악취유발물질의 농도간에 항상 양의 상관관계를 보이지는 않으므로써 악취특성을 조사하기 위해서는 관능시험과 기기분석이 병행되어야 함을 확인하였다.
안대희,구윤서,김성태,최종혁,오영숙,설미진,전승세 한국냄새환경학회 2006 실내환경 및 냄새 학회지 Vol.5 No.1
Y시와 I시에 위치한 악취를 유발하는 축분처리시설을 대상으로 모델링에 필요한 악취배출량을 산정하고 이를 이용하여 악취 배출원으로부터 주변지역으로 미치는 악취의 영향을 Puff 모델을 사용하여 분석하였다. 모델링 결과 대부분의 악취배출원 인접지역에서는 약 2도 정도의 악취, 8 km 이내 범위에서는 악취가 느껴질 수 있는 정도인 1도의 악취도를 나타내는 것으로 예측되었다. 또한, 사업장에서 악취를 실시간으로 관리할 수 있도록 Y시에 위치한 축분 비료공장을 대상으로 실시간 악취모델링 시스템을 운영한 결과, 사업장에서 가장 인접한 축분비료공장 입구에서 가장 높은 악취농도가 발생하였으며, 다소 이격되어 있는 장소에서는 비교적 낮은 악취도가 예측되었다. 또한, 저녁 또는 새벽에 악취도가 높게 나타나는 것으로 평가되었으며, 이는 대기가 안정상태에 머물러 있는 경우 악취도가 농축되는 것으로 나타났다. Odor emission effects of unit processes in 10 livestock farms and 3 manure treatment facilities in Y and I cities, Kyonggido, were simulated using puff model after the odor emission rates were measured. 2 degree level of odor intensity and 1 degree level of it were predicted by the puff model in the adjacent area of odor emission source and within the 8km radius range of it, respectively. As real time odor modelling system was operated at specific manure based fertilizer making facility located in Y city, the highest odor concentration was predicted at the entrance of that facility and relatively lower odor intensity was estimated at the place more or less be aparted from the emission sources. The higher odor intensity was evaluated at dawn and evening because the odor was accumulated in case of stable air condition.