한국환경보건학회지 (Journal of Environmental Health Sciences)

  • 제44권1호
  • /
  • Pages.63-75
  • /
  • 2018
  • /
  • 1738-4087(pISSN)
  • /
  • 2233-8616(eISSN)
한국환경보건학회 (Korean Society of Environmental Health)
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화력발전소의 혼합연료 사용에 따른 중금속 배출량 변화 연구

A Study on the Changes in Heavy Metal Emissions when Using Mixed Fuel in a Thermal Power Plant

  • 송영호 (공주대학교 일반대학원 환경과학과) ;
  • 김옥 (공주대학교 환경교육과) ;
  • 박상현 (충남연구원) ;
  • 이진헌 (공주대학교 환경교육과)
  • Song, Youngho (Environmental Science at Graduate School of Kongju National University) ;
  • Kim, Ok (Department of Environmental Education, College of Education Kongju National University) ;
  • Park, Sanghyun (Chungnam Institute) ;
  • Lee, Jinheon (Department of Environmental Education, College of Education Kongju National University)
  • 투고 : 2018.01.20
  • 심사 : 2018.02.09
  • 발행 : 2018.02.28
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초록

Objectives: The aim of this research is to explore the total heavy metals from a coal-fired power plant burning bituminous coal with wood pellets due to the implementation of the Renewable Portfolio Standard policy (RPS, 10% of electricity from renewable energy resources by 2023). Methods: The research was carried out by collecting archival data and using the USEPA's AP-42 & EMEP/EEA compilation of emission factors for use in calculating emissions. The Monte Carlo method was also applied for carrying out the calculations of measurement uncertainty. Results: In this paper, the results are listed as follows. Sb was measured at 110 kg (2015) and calculated as 165 kg (2019) and 201 kg (2023). Cr was measured at 1,597 kg (2015) and calculated as 1,687 kg (2019) and 1,728 kg (2023). Cu was measured at 2,888 kg (2015) and calculated as 3,133 kg (2019) and 3,264 kg (2023). Pb was measured at 2,580 kg (2015) and calculated as 2,831 kg (2019) and 2,969 kg (2023). Mn was measured at 3,011 kg (2015) and calculated as 15,034 kg (2019) and 23,014 kg (2023). Hg was measured at 510 kg (2015) and calculated as 513 kg (2019) and 537 kg (2023). Ni was measured at 1,720 kg (2015) and calculated as 1,895 kg (2019) and 1,991 kg (2023). Zn was measured at 7,054 kg (2015) and calculated as 9,938 kg (2019) and 11,778 kg (2023). Se was measured at 7,988 kg (2015) and calculated as 7,663 kg (2019) and 7,351 kg (2023). Conclusion: This shows that most heavy metals would increase steadily from 2015 to 2023. However, Se would decrease by 7.9%. This analysis was conducted with EMEP/EEA's emission factors due to the limited emission factors in South Korea. Co-firewood pellets in coal-fired power plants cause the emission of heavy metals. For this reason, emission factors at air pollution control facilities would be presented and the replacement of wood pellets would be needed.

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