• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.11a
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• pp.409-410
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• 2002

우리들이 일상적인 생활을 하는 과정에서 발생되는 생활폐기물은 그 처리문제가 심각한 사회문제로 대두되고 있다. 생활폐기물을 처리하기 위하여 매립(39%)에 의존하고 있고, 일부가 소각(5%)되고 있는 실정이다. 협소한 국토사정, 매립과정에서의 악취 등 생활환경문제, 매립후 장기간에 걸쳐 유기물이 분해하는 과정에서 발생되는 침출수로 인한 2차 환경오염문제의 발생으로 앞으로 소각처리의 확대는 필연적이라 할 수 있다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.11a
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• pp.265-266
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• 2002

휘발성 유기화합물(Volatile Oraganic Compounds: VOCs)은 오존 등의 광화학 스모그 생성의 원인물질일 뿐만 아니라 발암성의 유해물질, 지구온난화, 대기중의 악취물질 등으로 환경 및 건강에 악영향을 초래한다. 최근 들어 VOCs에 대한 대기중 배출규제가 강화됨에 따라 이를 효과적으로 제거 또는 회수하는 연구가 매우 중요시되고 있으며, 활성탄을 이용한 흡착은 이러한 기체상의 VOCs 분자를 고체 흡착제에 약한 분자력의 인력에 의해 접촉시켜 분리하는 공정으로 회수율 및 에너지 절약의 관점에서 효과적인 방법으로 알려져 있다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.11a
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• pp.306-307
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• 2002

악취 물질 제거를 위해 여러 가지 종류의 탈취제품이 시중에 유통되고 있다. 그러나 이런 탈취제품들이 어느 점도의 탈취 성능을 보유하고 있는지를 평가할 수 있는 체계적인 방법이 없어 막연하게 사용하고 있는 실정이다. 그리하여 탈취제품의 객관적인 탈취 성능 평가를 위한 시험 분석 방법을 개발하기 위해 최적의 분석 방법 및 측정 조건을 확립하고자 하였다. (중략)

• 산림경영
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• s.195
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• pp.20-25
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• 2010

오늘날 숯은 알게 모르게 우리 생활에 밀찰되어 많이 사용하고 있는데요. 가정에서 적당한 곳에 숯을 놓아두면 공기를 정화시켜주고, 밥을 지을 때 숯을 넣어두면 찰진밥이되고, 신발장이나 쓰레기통 같은 악취가 나는 곳에는 냄새를 제거해주기 때문에 가정 곳곳에 숯을 놓아두는 경우가 많습니다. 숯 그대로의 쓰임도 좋지만 요즘은 숯샴푸, 숯비누, 숯미용팩, 기능성 숯속옷, 숯베게, 숯장판, 숯벽지, 숯화장품 등 무궁무진하게 숯의 영역이 넓어지고 있답니다. 조상대대로 내려오는 숯의 조상 대대로 전해오는 숯의 다양한 효능을 알아보고, 우리 조상드르이 숯 활용 지혜와 기본적인 효능 그리고 다양한 숯의 쓰임새를 알아보고자 합니다.

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.390-391
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• 2001

은의 항균작용은 예로부터 알려져 왔는데, 특히 천연섬유에 기생하는 세균(bacteria)과 곰팡이(fungi) 등의 미생물을 제거하여 질병유발, 악취, 제품의 오염 방지에 효과적이다. 은은 다른 가공제와 달리 소량으로 항미생물 효과를 얻을 수 있으므로 나노 사이즈의 은 입자를 농도별로 면직물에 처리하고 세탁에 대한 내구성을 알아보고자 하였다. 이에 따라, 소량으로도 항미생물 효과를 나타내는 최적의 공정을 구하고 은입자가 균일하게 처리되는 조건에서 가공제의 내세탁성을 조사하였다. (중략)

• Journal of the Korea Organic Resources Recycling Association
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• v.9 no.3
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• pp.136-144
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• 2001

Two organic materials, peat and rock wool were used for removal of $H_2S$ by a biofilter inoculated with night soil sludge. By gradually increasing the inlet load of $H_2S$, the complete removal capacity, which was defined as the inlet load of $H_2S$ that was complete removed, and the maximum removal capacity of $H_2S$, which was the value when the removal capacity leveled off for organic materials, were estimated. Both values for Rock wool are larger than peat, based on a unit dry weight of material. By using kinetic analysis, the maximum removal rate of $H_2S$, $V_m$, and the saturation constant, $K_s$, were determined for all packing materials and the values of $V_m$ for rock wool was found to be larger. By using the kinetic parameters, the removal rates for $H_2S$ were compared both packing materials, and rock wool showed better performance for the removal of $H_2S$ in the inlet concentration range of 0~200ppm.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.14 no.3
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• pp.655-668
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• 1994

Conventional deodorization filters using soil and compost reach the capacity limitation of deodorization in short period, because its removal mechanism primarily depends on adsorption. Therefore, in this study the experiment was performed on the removal of ammonia which is a strong inorganic malodor, frequently emitted from night soil treatment plants and sewage treatment plants, by seeding activated sludges on the bio-peat containing higher organic contents, water conservation capacity, permeability and lower pressure drop. As a result, in raw peat filter natural ammonia outlet was observed in consequence of pH increase resulted from ammonia ionizing in liquid phase. Ammonia removal mechanism primarily depended on the adsorption onto the anion colloidal substances in peat. In peat bio-filter, theoretical ammonium salts ratio was higher than that of raw peat, resulted from slight pH increase by microorganism activity, however, the experimetal value of ammonia-nitrogen accumulated in bio-peat was lower than that of raw peat because of nitrification by nitrifying bacteria. In the initial reaction period, adsorption was predominant in the ammonia removal mechanism, but nitrification was conspicuous after the middle period. Mass balance of nitrogen was established using experimental data of input $NH_3$ loading, output $NH_3$ loading, $NH_4{^+}$-N, $NO_x$-N, and Org-N. The critical time of unsteady state, which is the maximum activating point of microorganism in bio-filter, was determined using experimental data, and the ammonia adsorption curve was computed using regression analysis. On the basis of the results obtained by above analysis, the delay days for the saturation of adsoption capacity in peat bio-filter was calculated.

• Journal of Animal Environmental Science
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• v.17 no.2
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• pp.61-70
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• 2011

This survey was conducted to investigate the current situation of ground condition of barn, moisture condition, feeding facilities, disinfection tool, etc. The data from a total of 305 farms were collected and analysed for establishment of managemental target in Hanwoo farm. The ground condition of barn was evaluated as a result of "moderate level" (46.4%). The moisture removal on the ground was conducted with the aid of electric fan (36.4%). The natural wind and sunlight should be used gradually for economic effect in farm. The exchange of floor straw was mostly conducted to remove the bad smell of barn (33.7%). 37.0% of farms had no the electric fan in internal barn, this instrument must be installed for control of body temperature and internal moisture in the future. Most of feeding facilities were operated by hand(88.2%). Modern farms should be installed with automatic feeding system. Farmer's skill of management was evaluated as a "2.80" of 5 points. Accordingly, farmers should be trained with high level of technical competitive skill. In conclusion, Hanwoo farms should be promoted and improved for enhancement of income through introduction to scientifically modern feeding skill.

• Clean Technology
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• v.22 no.2
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• pp.96-105
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• 2016

VOCs emissions from industries cause the air pollution and odor. In the industrial facilities, the existing odor treatment techniques have limits and problems. In this study, the optimum essential oil and metal oxide selected by screening test. lavender oil, cypress oil and TiO₂ were determined by deodorant materials and those were blended by 5%, 45%, 10%, respectively. In addition, the result of batch type experiments depending on the dilution rate, injection, rate, temperature showed that the optimum condition of deodorant is 6 mL of injection rate, and 200 times of dilution rate and the removal efficiency increased in proportion with temperature. In addition, the activation energy was calculated from the rate equation, which appeared in the 3-4 times lower than conventional deodorants.

• Applied Biological Chemistry
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• v.31 no.1
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• pp.100-105
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• 1988

A biofertilizer, having been deordorized and showing promotive effect on plant growth, was manufactured from the rice straw and hen feces by use of Thermoactinomycetes vulgaris. This strain grew vigorously on rice straw mixed with unsterilized hen feces at $50^{\circ}C,\;pH\;8.0{\sim}8.5$ and moisture content of 60% and got rid hen feces of malodour during treatment. The growth of plant(Brassica raga var. previdis) was experimented on humic volcanic ash soil, using pot in thermostatically controlled greenhouse. The biofertilizer was applied as N-fertilizer and air-dried lien feces or ammonium sulfate were used for comparison with the biofertilizer. The effect on. plant growth was evaluated on the basis of the amount of nitrogen as fertilizer, under a loading of 0.1g N/pot, all samples showed a promotion effect of plant growth. But ammonium sulfate and air-dried hen feces inhibited plant growth at the nitrogen content over 0.2 and 0.4g N/pot, respectively, whereas the biofertilizer showed a good promotion effect on plant growth without growth inhibition even at nitrogen content of 0.8g N/pot.