By the end of 2012, the recycled proportion of domestic waste tires was 287,330 ton (93.9%) of the amount of waste tires discharged (305,877 ton). The waste tires have been reused for heat supply, material recycling and other purposes; the proportions are 50.1%, 20.7% and 23.1%, respectively. In the case of heat supply, waste tires are supplied to cement kiln (104,105 ton, 68%), RDF manufacture facilities (47,530 ton, 31%) and incinerators (1,923 ton, 1%). Recently, there has been an increase in the use of waste tires at power generation facilities as an auxiliary fuel. Thus, physico-chemical analysis, such as proximate analysis, elemental analysis and calorific value analysis have been carried out to evaluate potential of waste tires as an auxiliary fuel in Korea. The LHV (Lower Heating Value) of waste tires is approximately 20% higher than that of coal, at an average of 8,489 kcal/kg (7,684 ~ 10,040 kcal/kg). Meanwhile, the sulfur content is approximately 1.5wt. %, and balance of plant (e.g. pipe line, boiler tube, etc.) may be corroded by the sulfur. However, this can be prevented by construction and supplementation with refractories. In this study, TDF (Tire Derived Fuel) produced from waste tires was co-combusted with coal, and applied to the CFB (Circulating Fluidized Bed) boiler, a commercial plant of 100 tons/day in Korea. It was combined with coal, ranging from 0 to 20wt. %. In order to determine the effect on human health and the environment, gas emission such as dioxin, NOx, SOx and so on, were continuously analyzed and monitored as well as the oxygen and carbon monoxide levels to check operational issues.

Abstract
 I. 서 론
 II. 실험내용 및 방법
  1. 대상시설
  2. 연구내용
   2.1. TDF 기초특성분석
   2.2. 실험내용 및 방법
   2.3. 분석방법
 III. 결과 및 고찰
  1. 시험대상 시료특성
  2. 대기오염물질 분석 결과
   2.1. 일반대기오염물질
   2.2. PCDDs/PCDFs 배출 특성
 IV. 결 론
 References

• 유흥민(연세대학교 환경공학부, Department of Environmental Engineering, WtERT Center, Yonsei University) | Heung-Min Yoo
• 엄남일(국립환경과학원 자원순환연구과, Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research) | Nam-Il Um
• 김용준(국립환경과학원 자원순환연구과, Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research) | Yong-Jun Kim
• 조윤아(국립환경과학원 자원순환연구과, Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research) | Yoon-A Cho
• 신선경(국립환경과학원 자원순환연구과, Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research) | Sun-Kyoung Shin
• 김기헌(국립환경과학원 자원순환연구과, Resource Recirculation Research Division, Environmental Resources Research Department, National Institute of Environmental Research) | Ki-Heon Kim Corresponding author