• Journal of the Korea Academia-Industrial cooperation Society
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• v.7 no.3
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• pp.431-439
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• 2006

A lot of particulate matter and an offensive odor are emitted during the operations of an industrial waste incinerator (IWI), especially pre_treatment and waste input processes. These pollutants affect the labor efficiency of an operator. Therefore, in this study. we have studied the improvement of working surroundings in the industrial waste incinerator by designing a new control system. A computational fluid dynamics has been used to find the diffusion flows of air pollutants (mainly particles and odor) to the working surroundings of the waste treatment complexes. The results obtained from the simulation analysis applied to the basic design on the points (and/or site) and types of pollution control devices. When pollutant control devices are constructed, the concentration of each pollutant at site 1 and 2 decreased about 83-97% for toluene, 48-72% for styrene, 75-87% for xylene, and 23-36% for ammonia, respectively. In addition, the PM-10 and TSP were decreased about 87% and 86% at site 3 (lower part of the waste input), 87% and 85% at site 4 (side part of the waste input), respectively. These indicated that the new control system had an excellent performance of particulate matter and odor removal and it could be applied to other waste treatment plant in place of an industrial waste incinerator.

• Journal of Animal Environmental Science
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• v.11 no.3
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• pp.189-196
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• 2005

This study was carried out to determine the acceptability of liquid manure bin among livestock farmers and agricultural farmers, and quantify its malodorous compounds. The results were as follows; 1. The size of the manure bins owned by $93\%$ of 60 farmers surveyed was 200 M/T and were all in normal operation. Around $57\%$ of the normally operated bins were processed under aerobic condition. 2. Filly percent of the respondents utilized their liquid manure bin twice a year while $64\%$ used commercial microbial products to enhance maturity of their liquid manure and abatement of malodorous emissions. On the other hand, $43\%$ mentioned problems on the labor requirement, mechanical maintenance and lending cost of liquid manure processing and utilization, and the price of the commercial microbial products. 3. Malodorants emitted from livestock liquid manure bins and their boundary bin depended upon the livestock liquid manure processing condition. Within bin under the aerobic processing condition, Iso-valeric and propionic acid were ranged 0.012 to 0.07ppm and 0.17 to 2.85ppm, respectively. Within bin under the anoxic processing condition, n-butyric, n-valeric acid, and acetaldehyde were ranged 1.5 to 2.3ppm, 1.3 to 1.8ppm, and 0.8 to 2.1ppm, respectively. Malodorants emitted from the boundary of livestock liquid manure bins under the anoxic processing condition were detected the range of 0.4 to 0.9 ppm, more than the concentration of law regulation, as an acetaldehyde, but under the aerobic processing condition, they did not any detection.

• Korean Journal of Poultry Science
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• v.41 no.1
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• pp.1-5
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• 2014

This study was carried out to investigate the effect of feeding fermented earthworm cast additives (FEC) on egg production, egg yolk fatty acids, blood lipid, cecal microorganism and fecal odor. The completely randomized experiment was applied, and the treatments were designed as 2 feeding regimens (control vs. FEC feeding), and FEC contained 3.5% top dressing to common diet. Egg production and egg weight of FEC group were significantly higher than that of control (p<0.05). Ratios of n-6/n-3 fatty acids in the egg yolk of FEC group were significantly higher than those in control group (p<0.05). Concentrations of HDL-C in FEC group was significantly higher than control group (p<0.05), but not triglyceride and total cholesterol. The caecal Lactobacillus of FEC group was significantly higher in FEC group than control group (p<0.05). $NH_3$ concentrations from poultry house were significantly lower in FEC group than control (p<0.05). In conclusion, these study results showed that the addition of FEC at 3.5% to the diet has reduced odor of poultry house and improved the n-6/n-3 fatty acid of egg yolk and egg production in laying hens.

• Clean Technology
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• v.27 no.2
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• pp.152-159
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• 2021

Volatile organic compounds (VOCs) occur in indoor and outdoor industrial and urban areas and cause environmental problems. Malodorous VOCs, along with aesthetic discomfort, can have a serious effect on the human body. Compared with the existing method of reducing malodorous VOCs, a wet scrubbing method using an electrolytic oxidant has the advantage of reducing pollutants and regenerating oxidants. This study investigated the optimal conditions for producing OCl^-, a chlorine-oxidant. Experiments were conducted by changing the type of anode and cathode electrode, the type of electrolyte, the concentration of electrolytes, and the current density. With Ti/IrO₂ as the anode electrode and Ti as the cathode electrode, OClproduction was highest and most stable. Although OCl^- production was similar with the use of KCl or NaCl, NaCl is preferable because it is cheap and easy to obtain. The effect of NaCl concentration and current density was examined, and the OCl^- production rate and concentration were highest at 0.75 M NaCl and 0.03 A cm^-2. However, considering the cost of electric power, OCl^- production under the conditions of 1.00 M NaCl and 0.01 A cm^-2 was most effective among the conditions examined. It is desirable to produce OCl^- by adjusting the current density in accordance with the concentration and characteristics of pollutants.

• THE HEALTH and ORGANIC FARMING
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• no.209
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• pp.1-12
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• 2004

제26회 한국유기농업대회 성황리 개최/우리모두 유기농업으로 무장한 한마리의 송사리가 되자!/국제 CODEX에 준한 한국 유기농업의 실천사례/제초제가 필요없는 쌀겨농법/유기농업의 기초/무 엇을 먹을까? 어떻게 먹 을까?/유기농업대회 화보/제6회 친환경농산물 품평회/친환경유기농산물 소비·유통의 활성화 방안/21C 지속가능한 사회를 향한 국가와 기업의 새 경영 패러다임/순환농업의 지역별 유형/국제 기준에 의한 유기농산물 생산기술/오이 검은별 무늬병 방제/딸기 흰가루병의 발생생태/가축분뇨 퇴비 품질기준 및 퇴비화 악취 저감기법/친환경농업에서의 규소의 적용성

• THE HEALTH and ORGANIC FARMING
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• no.210
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• pp.1-12
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• 2005

을유년유기농설계를 실천적으로 수립하자/친환경유기농산물의 나노산업화에 앞장서자!!/맛 좋은 쌀 생산방법/쌀겨를 이용한 제초효과/유기농업의 기초/현직 병원장도 깜짝 놀랐던 유기농산물의 치료 호전효과! !/제주도 친환경유기농산물한마당장터 성료/친환경유기농산물 소비.유통의 활성화 방안/금수강산 비료는 어떠한 비료인가?/순환농업의 지역별 유형/국제기준에 의한 유기농산물 생산기술/에너지순환과 토양 관리/딸기 흰가루병의 방제대책/가축분뇨 퇴비 품질기준 및 퇴비화 악취 저감기법/유기재배 쌀과 일반재배 쌀의 품질 특성 연구/은으로 짓는 농사

• Environmental engineer
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• s.328
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• pp.2-8
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• 2013

"드림파크CC는 국내 최초로 조달청 발주를 통해 골프장 운영관련 업체를 선정한 바 있으며, 운영과정에서도 더욱 투명하고 공정하게 관리해 나갈 계획입니다." 지난 5월에 취임한 송재용 수도권매립지관리공사 사장은 그동안 말도 많고 탈도 많았던 매립지내에 건설된 드림파크CC에 대해 향후 공정하게 운영할 것을 다짐했다. 그는 또 재임기간 동안 악취와 먼지를 저감시켜 애물단지 매립지를 보물단지로 만들어 지역주민과 상생하는 정책을 수립하겠다는 포부도 밝혔다. 송재용사장은 검정고시로 대학에 진학한 후 행정고시에 합격하는 학구파인 동시에 시인으로 문예지에 등단한 문인이기도 하다 다음은 송재용 사장과의 인터뷰 내용이다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.587-588
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• 2010

• Clean Technology
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• v.17 no.3
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• pp.259-265
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• 2011

The textile industry is suffered from air pollution problems which must be resolved. In particular, white smoke and odor after the tenter process require abatement. The major air pollution problem in the textile industry occurs during the finishing stages, where various chemicals are used for coating the fabrics. Lubricating oils, plasticizers, and water repellent chemicals are the fabric treatment chemicals. The coated fabrics are cured by heating in tenter facility. In this process, most of air pollutants emitted into the air. White smoke is basically made up of tiny solid or liquid particles of VOCs less than one micron in size. The oil mist can be carried over long distance from their point of origin. The most effective method of removing odor from tenter process is to get rid of tiny oil mist at the emitted gas. For this reason, the full-scale EFC (Electric Fume Collector) of 700 CMM was tested for removing odorous substances emitted from tenter facility. As a result of this study, odor and white smoke can be eliminated effectively and quite large amounts of oil can be recovered.

• Journal of Animal Environmental Science
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• v.14 no.1
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• pp.31-38
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• 2008

Ammonia gas is one of the malodorous gases from swine production facilities, such as manure storage tank, manure fermentation facilities, and livestock houses, etc. Ammonia gas from swine house is being emitted at relatively low concentrations throughout the year. Therefore, livestock facilities were continuously ventilated to supply fresh air for respiration of the animals internal the livestock facilities. The swine facilities need very high ventilation rate to control the inside environmental conditions. The deodorization system of the livestock facilities must be developed considering the ventilation rates. The odor abatement system was installed in order to improve the internal environment of the naturally ventilated growing-finishing pig house. The system which distributes the deodorized air into inner space of the swine house by using plastic duct was installed. Since the internal environment, effected by the operation of the odor abatement system, is monitored by closing the winch curtain installed on the side wall of the pig house, the experiment was practiced at the season when the internal environment becomes aggravated, winter. The effects on the improvement in the internal environment of swine house by operating the odor abatement system are as follows ; 1. By re-distributing the air which was deodorized by the odor abatement system installed in the pig house, the result showed that the concentration of ammonia gas is decreased approximately 33.3% compared with that before operating odor abatement system. 2. The effect on the pig house's ammonia gas reduction was found that the ventilation rate was less than $0.5m^3$/min head. The effect of the operation of the odor abatement system showed to be scarce when the ventilation rate increases because of the influx of external fresh air makes the quantity of diluted air more than those of the odor abatement system. 3. The perishment rate of the pigs which were brooded until slaughtering decreased about 3.8% by operating the odor abatement system in the growing-finishing pig house. Also, after operating the odor abatement system, the stinging of the eyes, suspension dust, etc were decreased when going into swine house for management.