A pilot study for determining the optimal operation condition for simultaneously controlling the emissions of PCDD/Fs and PAHs from the iron ore sintering process

Yu Cheng Chen, Perng Jy Tsai, Jin Luh Mou, Yu Chieh Kuo, Shih Min Wang, Li Hao Young, Ya Fen Wang

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

In this study, the cost-benefit analysis technique was developed and incorporated into the Taguchi experimental design to determine the optimal operation combination for the purpose of providing a technique solution for controlling both emissions of PCDD/Fs and PAHs, and increasing both the sinter productivity (SP) and sinter strength (SS) simultaneously. Four operating parameters, including the water content, suction pressure, bed height, and type of hearth layer, were selected and all experimental campaigns were conducted on a pilot-scale sinter pot to simulate various sintering operating conditions of a real-scale sinter plant. The resultant optimal combination could reduce the total carcinogenic emissions arising from both emissions of PCDD/Fs and PAHs by 49.8%, and increase the sinter benefit associated with the increase in both SP and SS by 10.1%, as in comparison with the operation condition currently used in the real plant. The ANOVA results indicate that the suction pressure was the most dominant parameter in determining the optimal operation combination. The above result was theoretically plausible since the higher suction pressure provided more oxygen contents leading to the decrease in both PCDD/F and PAH emissions. But it should be noted that the results obtained from the present study were based on pilot scale experiments, conducting confirmation tests in a real scale plant are still necessary in the future.

原文English
頁(從 - 到)1324-1331
頁數8
期刊Chemosphere
88
發行號11
DOIs
出版狀態Published - 2012 9月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 一般化學
  • 污染
  • 健康、毒理學和誘變

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