Characteristics of PCDD/Fs in a particles filtration device with activated carbon injection

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Characteristics of PCDD/Fs in a particles filtration device with activated carbon injection
出版類型SCI(Sciences Citation Index)
AuthorsYa H. Wang, 王雅馨, LinChieh 林 傑, & Gou-Ping Chang-Chien 張簡國平
出版日期2009 / 3

Although numerous investigations have monitored polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/F)
emissions from large municipal solid waste incinerators (MSWIs) and undertaken laboratory experiments to identify the formation
mechanisms of PCDD/F, the PCDD/F profiles inside an air-pollution control device have seldom been determined. This study presents
the outcome of a dioxin abatement program that injected particulate activated carbon (PAC) into an MSWI. The fly ashes collected from
different locations in a bag filter were examined and the mass distribution was determined. Emissions from the stack were sampled to
analyze PCDD/F content after injections of 10, 13 and 17 kg/h PAC. The concentration of PCDD congeners decreased from 117.00 to
0.32 ng/Nm3 and that of PCDF decreased from 94.84 to 0.19 ng/Nm3. The concentrations of filter cake ashes in different chambers and
at different locations varied at 105.11-147.53 ng/g. Based on mass balance evaluation, the flow rate of PCDD/Fs in filter cake ash was
3.33 ± 0.50 ng/min; this value was roughly six times higher than that of fly ash in the disposal pit, indicating that filter cake ash
treatment warrants considerable attention due to the policy for controlling PCDD/Fs.

期刊名稱Aerosol and Air Quality Research
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