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박정민 ( Jung Min Park ),정노을 ( Noh Ul Jung ),조명란 ( Myeong Ran Jo ),강경희 ( Kyung Hee Kang ),이상보 ( Sang Bo Lee ),이상학 ( Sang Hak Lee ),홍지형 ( Ji Hyung Hong ),이석조 ( Suk Jo Lee ) 한국환경분석학회 2012 환경분석과 독성보건 Vol.15 No.2
In this study, mercury emissions from waste incineration(municipal, hazardous, medical, sludge) in Korea, were measured. Hg contained in waste vaporizes during waste incineration and is emitted through the stack. Waste incinerators(municipal, hazardous, medical, sewage sludge) are recognized as a major source of Hg emission into the atmosphere. However, waste composition varies widely depending on economic condition, technologies in use, management practices, handling and treatment of such wastes. On an average, Hg emission concentrations from municipal waste incineration ranged from 13.50 to 36.50 μg/Sm3 and 1.96 to 4.71 μg/Sm3, at inlet and outlet of APCDs, respectively. This corresponds to removal efficiency of 84.4%. Small-capacity incinerators showed higher Hg emissions, in general. Hg emission concentrations from hazardous waste incineration ranged from 67.33 to 563.16 μg/Sm3 and 120.97 to 129.68 μg/Sm3, at inlet and outlet of APCDs, respectively. The municipal wastes contain relatively less Hg, compared to hazardous wastes, leading to lower Hg concentration in flue gas emission. Average Hg emission concentrations from medical waste incineration were 475.95 μg/Sm3 and in the range of 123.87 to 51.48 μg/Sm3, at inlet and outlet of APCDs, respectively. While, average Hg emission concentrations from sewage sludge incineration were 251.23 μg/Sm3 and 16.66 μg/Sm3, at inlet and outlet of APCDs, respectively. Hg emission factors estimation for waste incineration was based on the sampling concentration of Hg, flue gas exhaust rate and waste burned. Waste types varied, depending on different type of incinerators: municipal, hazardous, medical waste. Hg sources are to be continued to be measured in the future to have a clear scenario of Hg emission from the country and to apply for effective control measures.