폐기물의 시멘트 소성로 대체 연료 활용 확대를 위한 분석 표준운영절차(안) 도출 (Developing Analytical Standard Operating Procedure to Expand the Use of Combustible Waste as an Alternative Fuel for Cement Kilns)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 38권 / 5호 / 412 ~ 425페이지
· 저자명 : 한건호, 기동원, 강신영, 오대성, 김명기, 박세원

초록

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.

영어초록

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.

참고자료

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