Catalytic destruction vs. adsorption in controlling dioxin emission

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題名:	Catalytic destruction vs. adsorption in controlling dioxin emission
作者:	張木彬;Hsu, Wei Ting;Hung, Pao Chen;Chang, Moo Been
貢獻者:	工學院環境工程研究所
關鍵詞:	activated carbon;Activated carbon injection;Adsorption;Air Pollutants - analysis;Ashes;Catalysis;Catalysts;Catalytic filter;Charcoal - chemistry;Dioxins - analysis;Discharge;Emissions control;emissions factor;Filtration;Fly ash;gases;hazardous waste;Hazardous waste incinerator;Hazardous wastes;Incineration;Incinerators;Industrial Waste - analysis;Industrial waste incinerator;industrial wastes;PCDD/Fs;polychlorinated dibenzodioxins;polychlorinated dibenzofurans;Taiwan;waste management
日期:	2015-01-01
上傳時間:	2026-04-23 15:00:05 (UTC+8)
出版者:	Elsevier Ltd.;United States: Elsevier Ltd
摘要:	摘要： [Display omitted] •Two different air pollution control technologies are compared for PCDD/Fs removal.•Different congener distributions are found in two waste incinerators.•Catalytic filtration is effective in destroying gas-phase PCDD/Fs. This study investigates the removal efficiencies of PCDD/Fs achieved with a catalytic filter (CF) and with activated carbon injection followed by bag filter (ACI+BF) as applied in an industrial waste incinerator (IWI) and a hazardous waste incinerator (HWI), respectively. Catalytic filtration has been successfully applied to remove PCDD/Fs from gas streams. Comparing the CF to the ACI+BF system, it appears that the PCDD/F removal efficiency achieved with a CF is higher than that of an ACI+BF system. The PCDD/F emissions from both incinerators are well controlled to meet the regulatory limit of 0.1ng I-TEQ/Nm3. Additionally, the PCDD/F concentration in BF ash is higher than the regulation limit of Taiwan (1.0ng I-TEQ/g). In contrast, the PCDD/F concentration in CF ash is only 0.274ng I-TEQ/g. The difference is attributed to the fact that the ACI+BF system just transfers PCDD/Fs from gas phase to solid phase and further increases the PCDD/F concentration in fly ash, while CF technology effectively destroys the gas-phase PCDD/Fs. Therefore, the disposal of the fly ash discharged from CF would be less expensive compared with the fly ash discharged from the ACI+BF system. In this study, the PCDD/F emission factors of both incinerators are also established. 其他題名： Waste Manag 出版者： United States: Elsevier Ltd 出版日期： 2015-12-01 出處： Waste management (Elmsford), 2015-12, Vol.46, p.257-264 版權： 2015 Elsevier Ltd 版權： Copyright © 2015 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0956-053X 識別號： ISSN: 1879-2456 識別號： EISSN: 1879-2456 識別號： DOI: 10.1016/j.wasman.2015.09.002 識別號： PMID: 26350401
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