Journal
ATMOSPHERIC ENVIRONMENT
Volume 62, Issue -, Pages 265-271Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2012.08.035
Keywords
Mercury; Cement manufacturing facility; Cement kiln; Combustion flue gas; Ontario Hydro Method; Continuous emission monitor
Funding
- National Research Foundation of Korea (NRF)
- Korea government (MEST) [2009-0079977]
- National Research Foundation of Korea [2009-0079977] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study examined mercury (Hg) emissions from cement manufacturing facilities in Korea. Hg concentrations in stack gases from a kiln at the largest cement manufacturing facility (CMF) in Korea were measured using three different methods: a wet-chemical method and on-line measurements with two different types of conversion systems (SnCl2 and thermal) attached in front of each analyzer. The Hg concentrations of the feedstocks and fuels were then analyzed to determine the total amount of Hg input into CMFs and how much each material contributed to the Hg input. The total annual Hg input into all CMFs in Korea was estimated to be 1.71 tons, while the total annual Hg emissions estimated from the stack-gas measurement was 1.17-1.53 tons, indicating that 68-89% of total Hg input is released into the atmosphere. Therefore, more stringent regulation and effective control technologies should be applied to the CMFs to reduce Hg emissions. (C) 2012 Elsevier Ltd. All rights reserved.
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