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신종현,권보연,류형열,김상훈,김종보,김현자 한국냄새환경학회 2011 실내환경 및 냄새 학회지 Vol.10 No.4
Odorous compounds were monitored and dispersion modeling was conducted using AERMOD model. for Songtan Industrial Complex (SIC) located in Mogok-dong, Pyeongtaek city. The complex odor at the target area showed an average dilution ratio of 4.5 and low ammonia concentrations were observed (78.3 ppb). Sulfide, methyl iso-buthyl ketone, methyl ethyl ketone and styrene were not detected. The toluene concentration showed as 1233.3 ppb, which was the highest in the target compounds. The diffusion effect of odorous pollutants by wind was confirmed by descending order of concentration, inner-SIC (282 ppb) > downwind site (182 ppb) > upwind site (11.6 ppb). The results of the modeling demonstrated that the complex odors on the west and, south, north and east of the boundaries were dilution ratios of 10 24 and 20, respectively indicating the north and the east of SIC were more vulnerable to odor pollution than other regions.
CALPUFF Model을 이용한 시화공단의 악취관리방안에 관한 연구
김종보,김태화,류형열,김상훈,정상진 한국냄새환경학회 2011 실내환경 및 냄새 학회지 Vol.10 No.2
This study was conducted to induce the effective counterplan of odor management in the Sihwa industrial complex(SIC) utilizing to CALPUFF model with sensory odor. The CALPUFF model was applied to simulate a sensory odor, and was evaluated for odor applicability and the distribution status of odor in SIC was predicted. The simulated concentration showed lower than observed concentration but the prediction of odor was so excellent. The simulation result of CALPUFF model for SIC showed that annual mean odor unit was 5∼7 OU/㎥ (min. 3 OU/㎥, max. 25 OU/㎥). The annual mean odor unit in residential area was not high as 1∼3 OU/㎥ but was predicted to be affected by the weather status in the industrial complex. The odor emission sources of high concentration were distributed in the seashore. Therefore the management of the high concentration sources will be further demanded.
음식물쓰레기 자원화시설의 방지시설 운영개선에 관한 연구
김현자,배용수,오천환,김태현,김종보,류형열,김태화 한국냄새환경학회 2009 실내환경 및 냄새 학회지 Vol.8 No.1
In order to improve the management of food waste treatment facility, this study investigated the emission characteristics of odorous compounds around treatment process and deodorization equipment of three food waste treatment facilities(the transformation, feed production and composting facility). Furthermore, the removal experiment of odorous compounds using various absorbent was conducted. The odor concentrations of food waste storage hopper and separation process were higher than other processes and the major odorous compounds were methyl mercaptan, acetaldehyde, hydrogen sulfide and ammonia. The odor removal efficiencies of deodorization equipment such as activated carbon tower, wet scrubber and biofilter were mostly insufficient. Especially, the removal efficiency of wet scrubber is lower than the others, therefore the improvement of optimal operating condition is required. As a result of removal experiment of various absorbent, the removal efficiency was over 98% in case of 1% H₂SO₄+K₂HPO₄ for ammonia, KMnO₄ for acetaldehyde and KMnO₄ and 5% NaOH+KH₂PO₄ for hydrogen sulfide and methyl mercaptan. To achieve the effective odor control of food waste treatment facility, it is necessary increasing the removal efficiency of scrubber by using optimal absorbent for target odorous compounds.
악취체감도를 이용한 시화공단의 악취관리방안에 관한 연구
김종보,김태화,류형열,김상훈,정상진 한국냄새환경학회 2011 실내환경 및 냄새 학회지 Vol.10 No.2
This study was conducted to induce the effective counterplan of odor management in the Sihwa industrial complex(SIC) utilizing to CALPUFF model with sensory odor. The CALPUFF model was applied to simulate a sensory odor, and was evaluated for odor applicability and the distribution status of odor in SIC was predicted. The simulated concentration showed lower than observed concentration but the prediction of odor was so excellent. The simulation result of CALPUFF model for SIC showed that annual mean odor unit was 5∼7OU/m3 (min. 3 OU/m3, max. 25 OU/m3). The annual mean odor unit in residential area was not high as 1∼3OU/m3 but was predicted to be affected by the weather status in the industrial complex. The odor emission sources of high concentration were distributed in the seashore. Therefore the management of the high concentration sources will be further demanded. 본 연구는 시화공단에서 발생되는 악취의 현황을 체감악취를 통해 평가하여 이를 관리하는 체계적인 방안을 제시함으로써 효율적이고 현실적인 악취저감이 이루어지도록 하고자 하였다. 이를 위해 개별악취물질이 아닌 실제 체감악취인 복합악취를 배출량자료로 이용하여 대기확산 모델인 CALPUFF모델의 악취에서의 적용성을 평가하고 전반적인 악취분포 현왕을 파악하였다. 모델링 결과 시뮬레이션 농도가 실제 악취보다 조금 낮은 경향을 보였으나 악취현황 예측을 위한 CALPUFF모델의 적용성은 매우 양호한 것으로 조사되었다. 모델링을 통한 시화공단의 연중 평균 악취농도는 최저 3 OU/m3에서 최고 25 OU/m3로 공단 내 평균 농도는 5∼7 OU/m3인 것으로 나타났다. 배후 주거지역에서는 연평균 농도로 볼 때 비교적 낮은 1∼3 OU/m3로 과거와 같은 극심한 악취에 노출되지 않는 것으로 나타났다. 시화공단은 해안을 주변으로 고농도의 악취 배출원들이 분포하고 있어 향후 악취 감소를 위해서는 이들 고농도 배출원에 대한 관리가 강화되어야 될 것으로 보여진다.
신종현,김종보,권보연,류형열,김상훈,김현자 한국냄새환경학회 2011 실내환경 및 냄새 학회지 Vol.10 No.4
Odorous compounds were monitored and dispersion modeling was conducted using AERMOD model. for Songtan Industrial Complex (SIC) located in Mogok-dong, Pyeongtaek city. The complex odor at the target area showed an average dilution ratio of 4.5 and low ammonia concentrations were observed (78.3 ppb). Sulfide,methyl iso-buthyl ketone, methyl ethyl ketone and styrene were not detected. The toluene concentration showed as 1233.3 ppb, which was the highest in the target compounds. The diffusion effect of odorous pollutants by wind was confirmed by descending order of concentration, inner-SIC (282 ppb) > downwind site (182 ppb) >upwind site (11.6 ppb). The results of the modeling demonstrated that the complex odors on the west and, south,north and east of the boundaries were dilution ratios of 10 24 and 20, respectively indicating the north and the east of SIC were more vulnerable to odor pollution than other regions. 본 연구는 평택시 모곡동에 위치한 송탄산업단지를 대상으로 악취오염물질을 모니터링하고 AERMOD 모델을이용한 확산 모델링을 수행하였다. 대상지역에서 발생한 복합악취는 평균 4.5배였으며 암모니아 농도는 78.3ppb로 농도가 낮았다. 황화합물과 메틸아이소뷰티르케톤, 메틸에틸케톤, 스티렌은 검출되지 않았다. 톨루엔은최고 1233. 3ppb로 측정되어 조사대상 오염물질 중 가장 높은 농도를 보였고 지점별 농도가 산업단지 내(282.3ppb)> 풍하지점(183.2 ppb)> 풍상지점(11. 6ppb) 순으로 나타나 바람에 의한 오염물질 확산을 확인할 수 있었다. 악취모델링 결과, 산업단지 서쪽과 남쪽 부지경계선의 복합악취는 10배였으며 북쪽은 24배, 동쪽은 20배로계산되어 산업단지 북쪽과 동쪽이 악취에 취약한 것으로 예측되었다.
최일우,이재성,김동기,류형열,김태현,이수문,이진영,최윤호,김현자 한국실내환경학회 2013 한국실내환경학회지 Vol.10 No.2
This study was performed to investigate the distribution of indoor air pollutants in medical facility in Gyeonggi-do area from February to November, 2012, and to conduct the health risk assessment from obtained data. PM10, CO₂, formaldehyde, CO, and total bacteria count(TBC) did not exceed the maintained standards, but mean concentration of TVOC was 402.3㎍/㎥ and thirteen of them exceeded the recommended standard. In the concentration distribution of pollutants for the monthly samples, CO₂, formaldehyde, TVOC, TBC were the highest level in August. From the factor analysis of indoor air pollution provided three factors; the first factor was seasonal factor (indoor temperature and humidity, TBC and formaldehyde), the second factor was ventilation factor (CO₂, PM10 and CO), and the third factor was building(or interior) factor (TVOCs). In the health risk assessment results, the excess carcinogenesis of formaldehyde for resonable maximum exposure worker was 1.21×10-4 which means exceeding the cancer criteria(1.0×10-4). We confirmed the probability of health effect caused by TVOC. The lifetime excess cancer risk of carcinogens(benzene, formaldehyde) and hazard quotient of non-carcinogens(toluene, ethylbenzene, xylene, styrene), and risk of regulation substances(PM10, CO₂) were safety level for inpatients and out patients.