https://scholars.lib.ntu.edu.tw/handle/123456789/425164
標題: | Characteristics of PCDD/F content in fly ash discharged from municipal solid waste incinerators | 作者: | Chang, Yu Min Fan, Wen Pin Dai, Wen Chien HSING-CHENG HSI Wu, Chao Hsiung Chen, Ching Ho |
關鍵字: | Fly ash | MSW incinerators | PCDD | PCDF | 公開日期: | 30-八月-2011 | 出版社: | ELSEVIER SCIENCE BV | 卷: | 192 | 期: | 2 | 起(迄)頁: | 521 | 來源出版物: | Journal of Hazardous Materials | 摘要: | Different from most previous studies with quantity-limited data, this paper presents PCDD/F content characterization in the fly ash discharged from sixteen large-scale commercial MSWIs. From the results with over hundreds of data using periodically sampling and analysis, it was found that the PCDD/F contents in the fly ash were from 9.07 to 46.68. ng/g, d.w., and if based on international toxicity equivalent quantity, they were from 0.78 to 2.86. ng. I-TEQ/g, d.w. The higher chlorinated PCDDs likely dominated more than lower chlorinated PCDDs, but this tendency was not for PCDFs. The OCDD had the highest contribution to the total PCDD/F content, but if based on I-TEQ content, 2,3,4,7,8-PeCDF is the PCDD/F congener with the highest toxicity contribution. Moreover, the PCDD/F characteristic index (DCI) is suggested using the representative congener content of 2,3,4,7,8-PeCDF to characterize the fly ash. The DCI is 0.875 ± 7.6% for the fly ash discharged from the MSWI with the APCD assembly of SD, AC and BF. The findings obtained in this work provide overview information on the PCDD/F content characterization in fly ash. They will provide PCDD/F fingerprint information to distinguish from other PCDD/F sources, like steel refinery industry, hazardous waste incinerators, or cement kilns, and thus be applied to fly ash management in the environment. © 2011 Elsevier B.V. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/425164 | ISSN: | 03043894 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/79960189285 10.1016/j.jhazmat.2011.05.055 |
顯示於: | 環境工程學研究所 |
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