Dioxin contents in fly ash from large-scale MSW incinerators in Taiwan

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题名:	Dioxin contents in fly ash from large-scale MSW incinerators in Taiwan
作者:	Chang,MB;Huang,TF
贡献者:	環境工程研究所
关键词:	DIBENZO-PARA-DIOXINS;WASTE INCINERATOR;P-DIOXINS;FLUE-GAS;TEMPERATURE;COMBUSTION;EMISSIONS
日期:	1999
上传时间:	2010-06-29 18:21:04 (UTC+8)
出版者:	中央大學
摘要:	In this study, fly ash samples were collected from three municipal waste incinerators (MWI) in Taiwan. These MWIs investigated are equipped with different air pollution control devices (APCDs). Preliminary results indicated that 2,3,7,8-PCDD/Fs homologue patterns of various types of fly ash were quite similar for all three MWIs. Concentrations of higher-chlorinated congeners of PCDDs and PCDFs were remarkably higher than those of lower-chlorinated congeners. In the case of MSW-A, the PCDD/PCDF ratios of ashes were found in the decreasing order for cyclone, boiler and baghouse. The PCDD:PCDF ratios in various types of fly: ash of MWI-B was boiler-A<boiler-B<ESP<boiler-C. As for MSW-C, no obvious trend has been observed for PCDD/PCDF ratio. However, the ratio in boiler ash was higher than that in baghouse ash of MWI-A. The dioxin contents in fly ash would increase as the fly ash passed through APCD zones. In other words, the environmental conditions of APCD may actually cause the increase of the dioxin contents in fly ash. The trend for dioxin contents in fly ash collected from three MSW incinerators investigated was MSW-C < MSW-A < MSW-B. (C)1999 Elsevier Science Ltd. All rights reserved.
關聯:	CHEMOSPHERE
显示于类别:	[環境工程研究所 ] 期刊論文

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