PMID: 18409645Apr 16, 2008Paper

Reduction of dioxin-like compound emissions from a Waelz plant with adsorbent injection and a dual baghouse filter system

Environmental Science & Technology
Kai Hsien ChiMoo Been Chang

Abstract

Previous study indicates that the polychlorinated dibenzo-p-dioxin and -dibenzofurans (PCDD/F) concentration measured in the stack gas of the Waelz plant investigated reached 194 ng-TEQ/(N m3) (TEQ = toxic equivalence), due to the relatively high potential of PCDD/F formation and a low PCDD/F removal efficiency (<70%) achieved with the baghouse filter (BF). In September 2006, the Taiwan government setthe PCDD/F emission limit for existing Waelz plants as 1.0 ng-I-TEQO/(N m3). The retrofit technology for reducing PCDD/F emissions from the existing Waelz plant was evaluated at the same time. Carbon-type adsorbent injection technology was adopted in early 2006 to reduce the emission of dioxin-like compounds at the Waelz plant investigated. Flue gases and ambient air samplings were conducted during the two stages of retrofit to evaluate the removal efficiency of dioxin-like compounds at the Waelz plant investigated. At stage 1, by applying adsorbent injection + single baghouse filter (SBF), the PCDD/F and polychlorinated biphenyl (PCB) concentrations measured in the stack gas at the Waelz plant were 4.62 ng-TEQ/(N m3) and 0.08 ng-TEQ(WHO)/(N m3) (TEQ(WHO) = World Health Organization TEQ), respectively, as the adsorbent injection ra...Continue Reading

References

Nov 30, 1998·Environmental Health Perspectives·M Van den BergT Zacharewski
Mar 5, 2004·Environmental Science & Technology·Aykan KarademirSavas Ayberk
Sep 20, 2005·Chemosphere·Moo Been ChangGuo Ping Chang-Chien
Mar 31, 2006·Environmental Science & Technology·Kai Hsien ChiMoo Been Chang
Apr 19, 2007·Environmental Science & Technology·Kai Hsien ChiMoo Been Chang

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Citations

Feb 14, 2014·Journal of Environmental Sciences (China)·Xiaoqing LinJianhua Yan
Dec 20, 2011·Journal of Hazardous Materials·Pao Chen HungMoo Been Chang
Oct 19, 2011·Journal of Hazardous Materials·Takashi Fujimori, Masaki Takaoka
Jul 8, 2010·Journal of Hazardous Materials·Pao Chen HungMoo Been Chang
Jan 13, 2015·Environmental Science and Pollution Research International·Mei WangMinghui Zheng

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