• 공업화학
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• 제20권5호
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• pp.547-552
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• 2009

본 연구에서는 fiber reinforced plastics (FRP) 제품 가공시 발생하는 분진 및 악취 물질로 인한 작업현장의 악조건을 개선하기 위하여 activated carbon fiber (ACF) 장착 하이브리드 백필터를 개발하였다. FRP 제조업체 2개사에 ACF 백필터를 설치함에 있어 천장, 벽하단 부분에 덕트를 설치함은 물론 이동식 집진 덕트를 설치함으로써 집진효율을 높였다. 펄스젯트식 탈진방식을 채택하여 효과적인 시스템 운영을 유도함으로써 작업환경을 개선하고자 하였다. 하이브리드 백필터 시스템 운용시 이에 따르는 분진과 악취에 대한 제거동향을 고찰하였다.

• 공업화학
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• 제20권2호
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• pp.218-222
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• 2009

국 내외 관련기술현황에서 파악한 바와 같이, 종래의 악취 및 먼지제거 기술은 처리방법이나 경제성 면에 있어서 만족스럽지 못한 측면이 있고, 먼지와 악취가 동시에 발생하는 작업장의 경우 이 두 시설을 별도로 설치해야 하는 것이 큰 문제점이었다. 기존의 Bag Filter와 ACF (활성탄섬유)의 이중필터 형식인, ACF장착 Bag Filter를 적용하여 하나의 시설로 분진 및 악취 동시제거용 복합 Bag Filter 시스템을 개발을 위한 기초자료를 검토하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제18권4호
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• pp.574-579
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• 2005

Optimal management of indoor air quality in a confined pig house, especially in winter, is indispensable for preventing infectious respiratory disease to workers and animals. This study was performed to elucidate the correlation of aerial contaminants and climate factors in a confinement. It was observed that indoor air contaminants ion in the confinement was the highest at 2:00-5:00 pm in a day, followed by 8:00-11:00 pm and 8:00-11:00 am. This was attributed to the increase of pig activities in the afternoon. The concentration of total dust and total airborne bacteria was found to have a significant correlation with temperature and relative humidity (p<0.05). Correlation of total dust and total airborne bacteria, total dust and ammonia, and total dust and odor were shown statistically significant at 95% confidence level. In conclusion, temperature and total dust concentration correlated significantly with all the parameters except for hydrogen sulfide ($H_2S$). This could be explained by the fact the dryness of pig feces by increase of interior temperature and resuspension of feed deposited on the floor by the pig activity, resulted in high generation of dust which adsorbed and carried the airborne bacteria and odor compounds in a confined pig house. It was proved that the adsorptive capacity of dust with ammonia ($NH_3$) was higher than that with hydrogen sulfide ($H_2S$).

• Journal of Animal Science and Technology
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• 제44권2호
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• pp.261-270
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• 2002

본 연구에서는 한강유역에 위치한 축분퇴비공장의 작업환경 조사를 위한 현장 평가로서, 설문조사 및 악취물질 측정을 통해 근로자들의 작업환경 만족 수준과 이에 영향을 주는 요인들을 규명하였다. 연구결과, 축분퇴비공장 근로자들의 작업환경 만족도에 영향을 주는 요인들로 일반 건강수준, 악취, 작업량, 분진, 흡연으로 조사되었으며, 이 중 일반 건강수준, 악취, 작업량이 전체 작업환경 만족도의 61.3%를 대변하는 것으로 나타났다. 통계적 유의성을 나타낸 작업환경변수로는 일반 건강수준(p$<$0.01), 악취 작업량 분진(p$<$0.05) 등 이었다. 결론적으로 일반 건강수준이 높은 근로자일수록 작업환경 만족도가 높았으며, 작업량이 상대적으로 많고 악취와 분진에 쉽게 노출된 공장의 근로자일수록 작업환경 만족도가 낮은 것으로 분석되었다. 흡연을 하는 근로자는 작업환경 만족도가 낮게 나타냈으나, 통계적 유의성은 없는 것으로 분석되었다. 따라서 한강유역 축분퇴비공장 근로자들의 작업환경 만족도를 제고시키기 위해서는 공정 중 악취와 분진농도의 발생을 저감시켜야 할 것으로 판단된다. 그러므로 축분퇴비공장의 악취 및 분진농도의 발생을 최소화할 수 있는 처리공정 및 관리체계 정립이 시급하며, 이는 궁극적으로 축분퇴비공장 작업자의 건강 뿐만 아니라 주변 마을 정주민의 생활환경개선효과를 유발할 수 있다.

• 한국축산시설환경학회지
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• 제12권3호
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• pp.133-140
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• 2006

The climate of stall significantly influences on animal production ability. High concentration of ammonia gas, $CO_2$ and lots of dust are found in modern densely raising stall system, as results, they provide a negative influence on animal and farmer health, and production ability. Therefore, it is necessary to keep clean the inside air of stall to increase the productivity. An air cleaner of wet type, consisting of a fan, a motor, rotating discs, a dust collector, a water bowl, an ozone generator etc, has been developed to clean the stall air. The work principle is that the inside air is sucked through the fan, and the rotating discs make water into fineness spray and blow into the stall. The rest water flows down to the dust collector. In the present study, we measured the dust, ammonia gas, odor, temperature and humidity in a swine stall that were installed two wet air cleaners with 700 fattening swine with On-mode and Off-mode of wet air cleaners. The dust measure was divided into 3 categories, TSP, $PM_{10}$, and $PM_{2.5}$. In summer, the TSP in on-mode were maximum $0.259mg/m^3$ and minimum $0.128mg/m^3$, and the average was $0.195mg/m^3$. These are comparable to the data from Off-mode stall that maximum $0.308mg/m^3$, minimum $0.139mg/m^3$, and average $0.277mg/m^3$. However, $PM_{10}$ and $PM_{2.5}$ showed any significant differences between the tests. The concentrations of ammonia gas in Off-mode stall were maximum 13.8 ppm and minimum 5.9 ppm, and the average was 8.47 ppm. However in On-mode stall the ammonia gas concentrations were maximum 10.5 ppm and minimum 5.5 ppm, and the average was 7.63 ppm. The concentration of ammonia gas in On-mode was 10% in average lower than off-mode stall. Odor was measured by olfactometer. In the Off-mode stall, the odor unit were maximum 420 $Ou/m^3$ and minimum $300\;OU/m^3$, and the average was $367\;OU/m^3$, but in the On-mode stall the odor unit were maximum $330\;OU/m^3$ and minimum $210\;OU/m^3$, and the average was $253\;OU/m^3$. Odor removal efficiency was about 31% in On-mode stall.

• 한국축산시설환경학회지
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• 제14권2호
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• pp.75-80
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• 2008

High concentration of $NH_3$, $CO_2$, and lots of dust are found in modern densely raising stall system, as results, they provide a negative influence on animal and lamer health, and production ability. Therefore, it is necessary to keep clean the inside of stall air to increase the productivity. A wet type air cleaner has been developed to clean the stall air. The work principle is that the inside air are sucked through the fan, and the rotating discs make a water into a fineness spray and blows into the stall. The spray can take the dust, $NH_3$, and odor from the stall inside air and give back to the circulating water, which can be refreshed in 2 hours interval. In the Present study, we measured the $NH_3$, dust, odor, temperature and humidity in a swine stall that were installed two wet air cleaners with 700 fattening swine with on-mode and off-mode of wet air cleaners. In fall, the concentrations of $NH_3$ in off-mode stall were maximum 24 ppm and minimum 16 prm, and the average was 18.2 ppm. However in on-mode stall the $NH_3$ concentrations were maximum 7ppm and minimum 1ppm, and the average was 2.7ppm. The concentration of $NH_3$ in on-mode was 74% lower than off-mode stall. Odor was measured by olfactometer. In the off-mode stall, the odor unit was 3,800 OU/$m^3$, but in the on-mode stall the odor unit was 2,100 OU/$m^3$ Odor removal efficiency was about 45% in on-mode stall. The dust measure was divided into 3 categories, $PM_{10}$, $PM_{2.5}$ and $PM_{1.0}$. Whereas the $PM_{10}$ showed no significant differences between the tests, $PM_{2.5}$ and $PM_{1.0}$ in the fine particle range reduced remarkably in the on-mode.

• 한국축산시설환경학회지
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• 제5권3호
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• pp.203-216
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• 1999

Recent public concern about air pollution caused by swine production facilities has forced to develop the methods to reduce and control the swine odors. Swine odors were affected the life of pig farm neighborhoods, swine productivity, pig health, diseases, and human right, safety, sanity as negatively. The first approaches of control of swine odors are the change or improve of the classical management systems, which are manure treatment method, manure storage facility, phase feeding, sex-divided feeding, feeder type, liquid-slurry feeding, environment control of swine building and dust control of indoor swine facility. The methods to control odor emission from manure have to include the diet modification as nutritional basis. In recent, research emphasis has focused on manipulating the swine diet to increase the nutrient utilization of the diet to reduce excretion products and reduction of odors. There are lots of feed additives and pit additives introduced as practical basis for reducing odor emissions. The ozone treatment method is candidate as the good system for reducing swine odor. But this system is still too expensive to practice in present.

• 한국생산제조학회지
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• 제20권1호
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• pp.13-16
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• 2011

It is a tendency where the number of the restaurant is increasing recently with advancement of the food service industry. In comparison, Noxiousness fine MIST and the removal are passively done in about offensive odor which occurs meat products processing as emitting like that in the atmosphere. Because adherence lamination in the exhaustion line pipe has need of a periodic cleaning and change, it must discontinue the business of long time. In this paper, The technique development on fine MIST, dust of offensive odor and filtering which occur meat products processing prevents adherence/lamination of fine MIST in exhaustion line pipe. And the source prevents the environmental matter which is emitted in the atmosphere under maximizing boil offensive odor and the filtering effect of noxiousness MIST.

• 한국염색가공학회지
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• 제35권4호
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• pp.256-273
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• 2023

Among the dyeing industries, the tenter process is a process that improves the quality of fibers by drying and ironing (heat treatment) dyed fabrics, and drugs such as water repellents, antistatic agents, and fiber softeners are mainly used in these tenter processes. These drugs are vaporized in the process of treatment by high temperatures (180 ~ 230℃), and are observed in a complex form such as white smoke, oil mist, and fine dust, causing odor. To treat the complex exhaust gas at the rear end of the tenter facility, most companies operate by installing a wet scrubber and an adsorption tower alone or in parallel, but there are many problems. In particular, the insoluble oil mist at the rear end of the tenter has significantly low processing efficiency in the cleaning dust collection facility, and there is a problem in the facility by adsorption due to the occlusion phenomenon caused by the oil mist. In addition, the odor gas at the rear end of the tenter contains a lot of aldehydes, and in order to improve these various problems, a complex exhaust purification device using cyclone and electric support collector was developed. This study examined the applicability of economical and efficient technology by removing complex air pollution at the rear end of the tenter and applying improved technology than the existing technology.

• 한국축산시설환경학회지
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• 제16권1호
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• pp.21-28
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• 2010

수세탈취식을 이용한 축산악취저감에 관한 연구를 수행한 결과 다음과 같은 결과를 얻을 수 있었다. 개발된 용해도 측정장치를 이용하여 악취가스의 용해특성을 조사한 결과, 황화수소의 경우에는 용매와의 접촉 시간과 관계없이 매우 낮은 것을 알 수 있었다. 이에 비해, 메틸메르캅탄의 경우에는 물과의 접촉시간을 증가시킴에 따라 용해도도 함께 증가하는 것을 알 수 있었다. 이밖에 다른 황화합물인 디메틸설파이드, 디메탈디설파이드, 암모니아의 경우에는 매우 용해도가 높은 특성을 가지고 있었다. 따라서, 축사의 측벽에 수세탈취식 악취저감장치를 부착하여 사용할 경우에는 가능한 물과 환기가스의 접촉시간을 길게 유지시켜 주는 것이 악취저감성능을 향상 시킬 수 있는 것을 알 수 있었다. 그러나, 혐기성 상태에서 발생하기 쉬운 황화수소와 같은 경우에는 수세탈취식을 이용할 경우, 가스의 물에 대한 용해도가 낮기 때문에 높은 악취저감 효율을 기대하기는 어려울 것을 예측할 수 있었다. 그러나, 실제 벤치스케일을 제작하여 실험한 결과 포든 가스에서 용해도 측정실험보다 높은 저감효과를 얻을 수 있었다. 또한, 수세탈취 시스템에서의 분진 저감율이 93%으로 나타나, 악취저감 효과뿐만 아니라 분진발생량도 크게 줄일수 있는 것으로 나타났다.