The emission of odor, characterized by the combustion conditions and biomass types resulting from the use of a biomass incinerator, was analyzed. The following biomass types were considered: bark, board waste, sawdust, wood flour, wood fiver, wastewater sludge, and timber wastewater. As a study method, the physico-chemical characteristics of each biomass type were analyzed to predict the potential substances that might be emited under incomplete combustion conditions. And, the emission components of odor emission by biomass were analyzed at the laboratory level using a combustion device. In addition, the characteristics of the contaminant (odor) emission per mixture ratio of biomass were analyzed in a stoker incinerator that is in operation in an actual establishment at a scale of 300 ton/day. In the biomass emission experiment using the combustion device at the laboratory level, the major substances such as Acetic acid, Styrene, Toluene, Benzene, Dichloromethane, etc. were analyzed, and these components were determined to increase odor index. VOCs measurement in the outlet of the stoker incinerator indicated that Acetaldehyde, Ethanol, Acetonitrile, Ethyl acetate, Toluene, etc. were detected as the major substances. These were similar to the emission substances presented by the experiment that had investigated emissions by biomass type. A study on the Effect of Operational Conditions in biomass stocker incinerator on the concentration of odorous materials emitted from stack showed a close relationship between the input by biomass type and urea, temperature in the incinerator, and the tendency to emit/produce odor.

The purpose of this research was to study treatment characteristics of main odor substances, such as Trimethylamine and Acetaldehyde, by using 600 Wand 200 W microwave plasmas. Ar and air were used as plasma gases and a cylindrical SiC/Zeolite filter having several Ø 2~3 ㎜ size holes was used as a trigger to obtain a stable plasma even with a relatively low microwave power. The 600 W Ar plasma was used to destroy relatively high concentrated TMA and acetaldehyde from 500 ppm to 2200 ppm and their DREs (Destroy and Removal Ratios) were measured. The 200 W air plasma was also used to measure DREs for TMA and acetaldehyde Jowly concentrated in 4.5 odor strength. The results demonstrated that the Ar plasma produced 70% to 90% efficiency in removing odors substances. The 200 W Air plasma, which was operated at the relatively lower energy level, produced 90% or even above higher efficiency for the odorous materials. It was expected that the air plasma was effectively used to control odorous materials emitted from relatively a small size plant process.

In this study VOCs and odors in ambient air of the Wanju industrial site and a regional area were measured to build up a data base and predict the effect of them on the ambient air quality of the near regional area. Emission characteristics were examined by measuring odors and VOCs from the main emission sources sorted by the categories of industries. Three emission points were selected for odors and five points were for VOCs. VOCs in ambient airs of the industrial site and outside regional area toward the wind direction were also measured continuously during three days per a season for a year and the effect of the VOCs emitted from the industrial sites on the ambient air of the near regional area were evaluated. GC-PFPD, HPLC, and GC-FID were used for measuring sulfur compounds, aldehyde, and trimethylamine among odorous compounds and GC-MSD was used for VOCs. As the main results of this study, toluene, benzene, xylene, styrene, ethyl benzene, 1,3,5-trimethylbenzene and 1,2,4-trimethylbenzene were detected as main volatile organic compounds in this area. Hydrogen sulfide, trimethylamine and acetaldehyde were main detected species the odorous compounds.

In this paper, the emission processes of odors and VOCs sources for main industries were estimated thorough material balances and literature survey, and the characteristics of odors and VOCs concentration were examined by analysing four year of monitoring data in Jeonbuk Industrial Area. The several sampling sites were selected in the industrial site by considering TRI (Toxics Release Inventory), which were made by the Ministry of Environment based on the kinds and the amount of hazardous chemical materials for the industries, and the wind direction survey for ten years. Air samples were collected once per a season for four years in the sites. GC-PFPD, HPLC, and GC-FID were used for measuring sulfur compounds, aldehyde, and trimethylamine among odorous compounds and GC-MSD was used for VOCs. As the main results of this study, toluene, benzene, acetone, formaldehyde, acetaldehyde, xylene, styrene and chloroform were detected as main volatile organic compounds in this area. Hydrogen sulfide, trimethylamine and acetaldehyde were main detected species the odorous compounds.

본 연구는 전북산단내 높은 입주율을 차지하는 중소사업장 대상으로 최적의 온실가스 저감기술을 적용하여, 영세 중소사업장에서 발생되는 온실가스에 대한 관리방안 수립하기 위한 효율성평가 연구이다. 전라북도의 총 온실가스 배출량 중 산업에서의 기여도가 38%를 나타내어 온실가스에 대한 관리가 필요하며, 연도별로 온실가스가 지속적으로 증가하는 경향을 보여주고 있으므로 영세 중소사업장에서 발생되는 온실가스에 대한 관리방안을 위한 효율성평가 수립이 필요하다. 온실가스 효율성평가에서 양호로 조사된 차세대건조기, 정동기술, 열교환기술, 연소기기, 히트펌프 등의 기술을 중소사업장 적용 활성화를 위한 맞춤형으로 선정된 기술은 히트펌프기술, 폐열활용공급 기술을 선정하였다. 이 중 폐열활용공급 기술에 의하여 재생된 에너지를 공급할 수 있는 업체는 온도 70℃ 이상, 유량 500 m³/min 이상의 배출가스를 배출하는 업체를 대상으로 선정하였다. 효율성평가 원칙은 부합성, 수월성, 추진가능성, 구체성, 연계통합성을 고려하여 온실가스 네트워크에 따른 효율성평가 결과, 군산산단은 대규모의 금속제품제조업 또는 식품제품제조업은 소규모의 화학제품제조업과의 폐열 재이용기술을 적용하였을 경우에 양호한 기술로 평가되었으며, 익산산단은 대규모의 화학제품 제조업이 소규모의 전자제품 제조업과의 폐열 재이용기술을 적용하였을 경우에 양호한 기술로 평가되었다.

It will be necessary to make proper management plans to preserve the air quality in good level for the public. In order to make these plans, source information and detail emission inventories of the city and near industrial areas should be given. However, lack of the source measurements data makes us more difficult to complete the source inventory. VOC source inventory could be utilized for the feasibility study to estimate the contribution of VOC sources presenting to the receptor such as residential area. It may give policy maker an idea how to control the air quality, and improve their social environment in the area. This study shows data that measured VOCs concentrations from the local industrial areas in Jeonju during from May 2005 to January 2006. The samples were collected from the near sources in 7 major factories in the industrial park as well as 5 general sources in near city Jeonju area to elucidate the abundances of speciated VOCs and their spacial and temporal distributions depending on source bases. Industrial sources are as follows; chemical, food, paper, wood, metal, non-metal (glass), and painting (coating) industries. The 5 general sources are sampled from tunnel, gasoline gas station, dry cleaning shop, printing (copy) shop, and road pavement working place in urban area. To understand the near source effect at receptor, samples from the 2 receptor sites (one is at center of the industrial complex and the other site is at distance residential area downwind from the center) were collected and analyzed for the comparison to source concentration. The mass contributions of the speciated VOC to total mass of VOCs measured from the different sources and ambient (2 receptors) were presented and discussed.