Continuous sampling of MSWI dioxins

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Title:	Continuous sampling of MSWI dioxins
Authors:	張木彬;Hung, Pao-Chen;Chang, Shu-Hao;Buekens, Alfons;Chang, Moo-Been
Contributors:	工學院環境工程研究所
Keywords:	activated carbon;Air Pollutants - analysis;Benzofurans - analysis;Charcoal - chemistry;Combustion;dibenzofuran;Dibenzofurans, Polychlorinated;Dioxins;Emission;emissions;Environmental Monitoring - instrumentation;Environmental Monitoring - methods;Equipment Design;Filtration;Incineration - instrumentation;Incineration - methods;Long-term sampling;Monitors;municipal solid waste;oxygen;PCDD/Fs;polychlorinated dibenzodioxins;Polychlorinated Dibenzodioxins - analogs & derivatives;Polychlorinated Dibenzodioxins - analysis;polychlorinated dibenzofurans;Samplers;Sampling;Self-developed continuous sampler;Solid Waste - analysis;Start-up period;Taiwan;waste incineration
Date:	2016-02-01
Issue Date:	2026-04-23 15:00:47 (UTC+8)
Publisher:	Elsevier Ltd.;England: Elsevier Ltd
Abstract:	摘要： Municipal solid waste incineration (MSWI) is generally considered as a well-controlled source of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), in brief dioxins. Start-up conditions continue, however, to be problematic. A self-developed continuous sampler was specially designed and built to fulfill the various sampling criteria of U.S. EPA Method 23 and monitor the trends of dioxins emissions during diverse operating conditions. In the MSWI plant investigated, a 98.1% TEQ PCDD/F removal efficiency was achieved in normal operation using activated carbon injection + bag filtration (ACI + BF) and the corresponding PCDD/F emission remains well below the standard set by Taiwan EPA (0.1 ng I-TEQ/Nm3 11% O2). During start-up, however, continuous sampling indicates that this limit value is reached only after 12 and 9 days, respectively for the 1st (2011) and 2nd test campaign (2012). Only 15 days after start-up the PCDD/F emissions shrunk to the levels typically measured during normal operation. The PCDD/F emissions from the 1st and 2nd continuous sampling campaigns were 5.4 and 5.5 mg I-TEQ, respectively. Short-term PCDD/F sampling such as the U.S. EPA Method 23 is less adapted to monitor these transient PCDD/F emissions representatively and accurately, due to a steady decrease of PCDD/F emissions after start-up. This self-developed continuous sampler effectively enhances the ease and reliability of emission data collecting during transient conditions of MSWI. •A self-developed continuous sampler following EPA Method 23 is tested and applied.•Characteristics of PCDD/F emission during start-up period of MWI are discussed.•High PCDD/F emissions found and 2 weeks are needed to return to normal conditions.•Total PCDD/F emissions are evaluated with two long-term sampling campaigns. 其他題名： Chemosphere 出版者： England: Elsevier Ltd 出版日期： 2016-02 出處： Chemosphere (Oxford), 2016-02, Vol.145, p.119-124 版權： 2015 Elsevier Ltd 版權： Copyright © 2015 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0045-6535 識別號： EISSN: 1879-1298 識別號： DOI: 10.1016/j.chemosphere.2015.11.111 識別號： PMID: 26688247
Appears in Collections:	[Graduate Institute of Environmental Engineering ] journal & Dissertation

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