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논문 기본 정보

자료유형
학술저널
저자정보
한건호 (서울기술연구원) 기동원 (서울기술연구원 기술개발본부 생활환경연구실) 강신영 (서울기술연구원 기술개발본부 생활환경연구실) 오대성 (한국시멘트협회 환경정책팀) 김명기 (한국시멘트협회 환경정책팀) 박세원 (서울기술연구원 기술개발본부 생활환경연구실)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제38권 제5호
발행연도
2021.10
수록면
412 - 425 (14page)
DOI
https://doi.org/10.9786/kswm.2021.38.5.412

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Since the 1970s, waste tires have been used as auxiliary fuel in Korea, and the Korean cement industry has employed various wastes as auxiliary fuels and alternative materials. The main fuels used in cement kiln are bituminous coal and coke, and as of 2018, the rate of waste tires used as auxiliary fuel in Korea was only 23% (based on the heating value by the fossil fuel). This value was almost half of that of Europe (46%) and one-third of that of Germany (68%). Owing to the high temperature conditions of the gas and solid (materials) in cement kilns (2,000 and 1,450°C, respectively), most harmful pollutants, such as heavy metals, are volatilized; thus, eliminating the environmental impact of waste fuel. However, the use of waste fuel and materials in cement production process has garnered the negative perceptions of people. To address this problem, the Korean government and cement industry established the “Waste Use and Management Standard for Cement Kilns” in 2009; however, this had no significant effect on the negative perceptions of the people. The effective disposal of waste in Korea has remained a challenge owing to lack of additional landfill areas and incinerators; particularly, China’s ban on waste imports in April 2018 has compounded this problem. To actively utilize combustible waste as alternative fuels for cement production process, this study proposed thermal/environmental and quality/environmental analysis candidates and standards, and suggested a standard operating procedure for cement kilns. The standard operating procedure of waste proposed in this study included heating value, elementary, and heavy metals content analyses, and that of cement included physical and chemical composition, heavy metals content and leaching, and radioactivity analyses. We believe that the proposed standard operating procedure can be employed in the future to ensure the reliability and enhancement of the utilization of waste as alternative fuels for cement production. Additionally, the standard proposed in this study may solve problems related to domestic waste disposal.

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