In this study, the odor causing in the under-fired charbroiling restaurant was reported in literature investigation,pilot test and field experimental verification. The charbroiling restaurant causes odor complaints of Neighbors soefficient reduction method is requested. Acetaldehyde, ammonia, sulfur compound and the oil mist of white smokeare found to cause odor from the charbroiling restaurant. Pilot test results show that in the removal efficiency ofodor, Electrostatic Precipitation was 67.4%, absorption was 81.2%, adsorption was 74.2% and the ElectrostaticPrecipitation & Adsorption the hybrid system with 85.7% respectively. In the same condition of the hybrid system(Electrostatic Precipitation & Adsorption), the odor removal efficiency were higher when the design parameterssuch as the discharge voltage and current were high. The process efficiency were higher when as the implanterpole was cylindrical. However, the process efficiency rapidly reduced due to the contamination of the processcomponent or material, as the operating time of the equipment is increased. Therefore, fixed maintenance and repairof the equipment is found to be are very important, for long term operation. Therefore, as the experimental resultof this study, applying hybrid system removed odors caused in under-fired charbroiling restaurant which areunregulated, is more effective device that settle civil complaints and preserve environment.
우리나라에서 악취 규제는 배출원의 부지경계선과 배출구에서 농도 규제치를 사용한다. 그러므로 수용체에서 정확한 체감악취의 유무를 쉽게 판단하기는 곤란하다. 비록 개개인의 악취에 대한 응답을 결정하는 변수는 다양하고 응답 종류도 광범위하게 나타나지만, 일반적으로 악취에 대한 규제는 다양한 변수를 고려하여 구성되며, 이들 변수에는 악취 발생빈도, 강도, 기간, 불쾌도, 지역 변수 등이 있다. 본 연구에서는 매사추세츠(미국), 뉴질랜드, 덴마크, 네덜란드, 호주 서부, 타이완 등 6개 지역의 악취 규제를 사용하여 소각장 주변에서 악취 영향 거리를 비교하였다. 악취 영향 거리를 평가하기 위하여 이들 6개 지역 규제는 악취 농도와 허용 빈도를 고려하고 있다. 연구 결과에 의하면 악취에 의한 영향 거리는 0.5~1.4 km의 범위로 나타났다. 악취 농도를 고정하고 허용 빈도를 변경하는 경우 허용 빈도가 높을수록 영향 거리는 크게 나타났다. 허용 빈도를 고정하고 농도를 변화시키는 경우 농도가 높으면 영향거리가 줄어들었다. 결론적으로 악취 영향 범위는 악취 농도뿐 아니라 허용 빈도에 따라 변화하였다.
In this study, field experiment, odor simulator, and dispersion modeling were used to evaluate the odor impact from J sewage sludge treatment facility. The height and flow rate of exhaust stack at this facility were 22.3 m and 100 Nm3/min. The mean odor concentrations of the wet scrubber inlet and exhaust stack were 267±160 and 93±44 OU/m3, respectively. The odor removal efficiency of wet scrubber showed 65%. The odor simulator is used for the regulated standard calculation of the exhaust pipe(stack). Resulting odor emission rate(OER) by odor simulator was 2.4×106(24,000 OU/m3). The forecasting result by Screen3 modeling showed that odor exhaust concentration up to 30,000 OU/m3 was’t exceeded maximum allowable emission level on site boundary(15 OU/m3).
The concentrations of offensive odorous compounds emitted from the two chemical plants in Chongju and Yeosu industrial complex in Korea were determined by uv/vis spectroscopy, gas chromatography, and high performance liquid chromatography. The odorous compounds examined in this study are ammonia, trimethyl amine, formaldehyde, acetaldehyde, propion aldehyde, butyl aldehyde, n-valeric aldehyde, iso-valeric aldehyde, hydrogen sulfide, methyl mercaptan, dimethyl sulfide and dimethyl disulfide. The concentrations of those were determined from the 10 sampling points of the two plants, respectively. The emission concentrations of all odorous compounds examined in the two plants were lower than those of the regulation standard levels of industrial complex in Korea, respectively. The propion aldehyde, n-valeric aldehyde, methyl mercaptan and dimethyl disulfide in Chongju and Yeosu plants, and butyl aldehyde and iso-valeric aldehyde in Yeosu plant were not detected at any sampling points examined.