The Experts below are selected from a list of 67281 Experts worldwide ranked by ideXlab platform
Yiming Kuo - One of the best experts on this subject based on the ideXlab platform.
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evaluation of thermal treatments for elutriated mixed incinerator ashes part 1 co incineration with Laboratory Waste
Aerosol and Air Quality Research, 2016Co-Authors: Jianwen Wang, Chenghsien Tsai, Chih Ta Wang, Yi Chyun Hsu, Yiming KuoAbstract:ABSTRACTThis study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the co-incineration of elutriated mixed incinerator ashes with Laboratory Waste. The input and output materials during elutriation and incineration processes were sampled and analyzed using a high-resolution gas chromatography/high-resolution mass spectrometry assay. The elutriation process mainly washed out soluble salts and thus resulted in an increase in the level of PCDD/F in the mixed incinerator ashes. After co-incineration with Laboratory Waste, the PCDD/F concentration of the flue gas met the regulated standard in Taiwan, and the PCDD/F mainly existed as a particulate phase. However, the PCDD/F levels in fly ashes that included elutriated ash in the incinerator were higher than those of fly ashes without it. The co-incineration output-mass/input-mass ratio of elutriated ash with Laboratory Waste was 0.34. According to the X-ray diffraction analysis results and scanning electron microscopy images, the main crystalline phase of the fly ashes was NaCl. The NaCl came from the reaction of HCl in the flue gas and the NaOH injected in the quenching tower after treatment in the co-incineration system.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Wastes part 2 pcdd f profiles and characteristics of output materials
Aerosol and Air Quality Research, 2014Co-Authors: Weitung Liao, Chenghsien Tsai, Yafen Wang, Yingi Tsai, Yiming KuoAbstract:This study investigates the polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) profiles of output materials and the influence of Cl content of input materials during the incineration of Laboratory Waste. The specimens, namely bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), baghouse ash (BHA), and stack flue gas (SFG), were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry, fieldemission scanning electron microscopy (FE-SEM), ion chromatography, and X-ray diffraction (XRD). The Cl content was highest in FQA, followed by that in SQA, BHA, and BTA, and most of the Cl existed in soluble form, especially for FQA and SQA. The Cl mass was mainly distributed in FQA and BTA during incineration. The PCDD/F content of ash in each category was highly related to the Cl level in the input materials. The PCDD/Fs of all ashes and the particulate phase of SFG were mainly 7-Cl or 8-Cl PCDD/Fs, but those of the gas phase in SFG were mainly 4-6 Cl PCDD/Fs. In addition, an increase of Cl in the input materials increased the fractions of 7-Cl and 8-Cl PCDD/Fs. The XRD analysis results indicate that the main crystalline phase in fly ashes was NaCl. FE-SEM images show a porous granular morphology, which is consistent with the XRD analysis results.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Waste part 1 emission profiles obtained using chemical assay and bioassay
Aerosol and Air Quality Research, 2014Co-Authors: Ta Chang Lin, Jianwen Wang, Chih Ta Wang, Yafen Wang, Yiming KuoAbstract:This study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the incineration of Laboratory Waste, including combustible Laboratory solid Waste (LSW), Laboratory plastic Waste (LPW), and organic Laboratory liquid Waste (LLW). Stack flue gas (SFG), input materials, bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), and baghouse ash (BHA) were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) assay and bioassay. The PCDD/F concentration of SFG met the standard in Taiwan. The Cl levels of LPW and LLW were roughly equivalent to that of municipal solid Waste (MSW). Therefore, the SFG concentration, content of fly ash, and distribution behavior of PCDD/Fs are reasonably similar to those of MSW incinerators. The LSW had an extremely high Cl level (11.4%). The emission factor of the whole incineration system was 888 µg I-TEQ/ton-Waste, which is 10-fold higher than that of MSW. The PCDD/F was mainly in BTA (31.6 wt.%) and fly ash (63.1 wt.%), resulting in higher PCDD/F level of ashes compared with that of MSW ashes. Both HRGC/HRMS analysis and bioassay results show similar PCDD/F emission characteristics during the incineration of LW. In addition, the linear regression between the values acquired using these two methods show a good relation (R 2 > 0.84), indicating that Ad-DR bioassay is a promising fast-screen method for determining PCDD/F levels.
Jianwen Wang - One of the best experts on this subject based on the ideXlab platform.
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evaluation of thermal treatments for elutriated mixed incinerator ashes part 1 co incineration with Laboratory Waste
Aerosol and Air Quality Research, 2016Co-Authors: Jianwen Wang, Chenghsien Tsai, Chih Ta Wang, Yi Chyun Hsu, Yiming KuoAbstract:ABSTRACTThis study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the co-incineration of elutriated mixed incinerator ashes with Laboratory Waste. The input and output materials during elutriation and incineration processes were sampled and analyzed using a high-resolution gas chromatography/high-resolution mass spectrometry assay. The elutriation process mainly washed out soluble salts and thus resulted in an increase in the level of PCDD/F in the mixed incinerator ashes. After co-incineration with Laboratory Waste, the PCDD/F concentration of the flue gas met the regulated standard in Taiwan, and the PCDD/F mainly existed as a particulate phase. However, the PCDD/F levels in fly ashes that included elutriated ash in the incinerator were higher than those of fly ashes without it. The co-incineration output-mass/input-mass ratio of elutriated ash with Laboratory Waste was 0.34. According to the X-ray diffraction analysis results and scanning electron microscopy images, the main crystalline phase of the fly ashes was NaCl. The NaCl came from the reaction of HCl in the flue gas and the NaOH injected in the quenching tower after treatment in the co-incineration system.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Waste part 1 emission profiles obtained using chemical assay and bioassay
Aerosol and Air Quality Research, 2014Co-Authors: Ta Chang Lin, Jianwen Wang, Chih Ta Wang, Yafen Wang, Yiming KuoAbstract:This study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the incineration of Laboratory Waste, including combustible Laboratory solid Waste (LSW), Laboratory plastic Waste (LPW), and organic Laboratory liquid Waste (LLW). Stack flue gas (SFG), input materials, bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), and baghouse ash (BHA) were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) assay and bioassay. The PCDD/F concentration of SFG met the standard in Taiwan. The Cl levels of LPW and LLW were roughly equivalent to that of municipal solid Waste (MSW). Therefore, the SFG concentration, content of fly ash, and distribution behavior of PCDD/Fs are reasonably similar to those of MSW incinerators. The LSW had an extremely high Cl level (11.4%). The emission factor of the whole incineration system was 888 µg I-TEQ/ton-Waste, which is 10-fold higher than that of MSW. The PCDD/F was mainly in BTA (31.6 wt.%) and fly ash (63.1 wt.%), resulting in higher PCDD/F level of ashes compared with that of MSW ashes. Both HRGC/HRMS analysis and bioassay results show similar PCDD/F emission characteristics during the incineration of LW. In addition, the linear regression between the values acquired using these two methods show a good relation (R 2 > 0.84), indicating that Ad-DR bioassay is a promising fast-screen method for determining PCDD/F levels.
Yafen Wang - One of the best experts on this subject based on the ideXlab platform.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Wastes part 2 pcdd f profiles and characteristics of output materials
Aerosol and Air Quality Research, 2014Co-Authors: Weitung Liao, Chenghsien Tsai, Yafen Wang, Yingi Tsai, Yiming KuoAbstract:This study investigates the polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) profiles of output materials and the influence of Cl content of input materials during the incineration of Laboratory Waste. The specimens, namely bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), baghouse ash (BHA), and stack flue gas (SFG), were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry, fieldemission scanning electron microscopy (FE-SEM), ion chromatography, and X-ray diffraction (XRD). The Cl content was highest in FQA, followed by that in SQA, BHA, and BTA, and most of the Cl existed in soluble form, especially for FQA and SQA. The Cl mass was mainly distributed in FQA and BTA during incineration. The PCDD/F content of ash in each category was highly related to the Cl level in the input materials. The PCDD/Fs of all ashes and the particulate phase of SFG were mainly 7-Cl or 8-Cl PCDD/Fs, but those of the gas phase in SFG were mainly 4-6 Cl PCDD/Fs. In addition, an increase of Cl in the input materials increased the fractions of 7-Cl and 8-Cl PCDD/Fs. The XRD analysis results indicate that the main crystalline phase in fly ashes was NaCl. FE-SEM images show a porous granular morphology, which is consistent with the XRD analysis results.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Waste part 1 emission profiles obtained using chemical assay and bioassay
Aerosol and Air Quality Research, 2014Co-Authors: Ta Chang Lin, Jianwen Wang, Chih Ta Wang, Yafen Wang, Yiming KuoAbstract:This study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the incineration of Laboratory Waste, including combustible Laboratory solid Waste (LSW), Laboratory plastic Waste (LPW), and organic Laboratory liquid Waste (LLW). Stack flue gas (SFG), input materials, bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), and baghouse ash (BHA) were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) assay and bioassay. The PCDD/F concentration of SFG met the standard in Taiwan. The Cl levels of LPW and LLW were roughly equivalent to that of municipal solid Waste (MSW). Therefore, the SFG concentration, content of fly ash, and distribution behavior of PCDD/Fs are reasonably similar to those of MSW incinerators. The LSW had an extremely high Cl level (11.4%). The emission factor of the whole incineration system was 888 µg I-TEQ/ton-Waste, which is 10-fold higher than that of MSW. The PCDD/F was mainly in BTA (31.6 wt.%) and fly ash (63.1 wt.%), resulting in higher PCDD/F level of ashes compared with that of MSW ashes. Both HRGC/HRMS analysis and bioassay results show similar PCDD/F emission characteristics during the incineration of LW. In addition, the linear regression between the values acquired using these two methods show a good relation (R 2 > 0.84), indicating that Ad-DR bioassay is a promising fast-screen method for determining PCDD/F levels.
Chih Ta Wang - One of the best experts on this subject based on the ideXlab platform.
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evaluation of thermal treatments for elutriated mixed incinerator ashes part 1 co incineration with Laboratory Waste
Aerosol and Air Quality Research, 2016Co-Authors: Jianwen Wang, Chenghsien Tsai, Chih Ta Wang, Yi Chyun Hsu, Yiming KuoAbstract:ABSTRACTThis study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the co-incineration of elutriated mixed incinerator ashes with Laboratory Waste. The input and output materials during elutriation and incineration processes were sampled and analyzed using a high-resolution gas chromatography/high-resolution mass spectrometry assay. The elutriation process mainly washed out soluble salts and thus resulted in an increase in the level of PCDD/F in the mixed incinerator ashes. After co-incineration with Laboratory Waste, the PCDD/F concentration of the flue gas met the regulated standard in Taiwan, and the PCDD/F mainly existed as a particulate phase. However, the PCDD/F levels in fly ashes that included elutriated ash in the incinerator were higher than those of fly ashes without it. The co-incineration output-mass/input-mass ratio of elutriated ash with Laboratory Waste was 0.34. According to the X-ray diffraction analysis results and scanning electron microscopy images, the main crystalline phase of the fly ashes was NaCl. The NaCl came from the reaction of HCl in the flue gas and the NaOH injected in the quenching tower after treatment in the co-incineration system.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Waste part 1 emission profiles obtained using chemical assay and bioassay
Aerosol and Air Quality Research, 2014Co-Authors: Ta Chang Lin, Jianwen Wang, Chih Ta Wang, Yafen Wang, Yiming KuoAbstract:This study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the incineration of Laboratory Waste, including combustible Laboratory solid Waste (LSW), Laboratory plastic Waste (LPW), and organic Laboratory liquid Waste (LLW). Stack flue gas (SFG), input materials, bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), and baghouse ash (BHA) were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) assay and bioassay. The PCDD/F concentration of SFG met the standard in Taiwan. The Cl levels of LPW and LLW were roughly equivalent to that of municipal solid Waste (MSW). Therefore, the SFG concentration, content of fly ash, and distribution behavior of PCDD/Fs are reasonably similar to those of MSW incinerators. The LSW had an extremely high Cl level (11.4%). The emission factor of the whole incineration system was 888 µg I-TEQ/ton-Waste, which is 10-fold higher than that of MSW. The PCDD/F was mainly in BTA (31.6 wt.%) and fly ash (63.1 wt.%), resulting in higher PCDD/F level of ashes compared with that of MSW ashes. Both HRGC/HRMS analysis and bioassay results show similar PCDD/F emission characteristics during the incineration of LW. In addition, the linear regression between the values acquired using these two methods show a good relation (R 2 > 0.84), indicating that Ad-DR bioassay is a promising fast-screen method for determining PCDD/F levels.
Chenghsien Tsai - One of the best experts on this subject based on the ideXlab platform.
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evaluation of thermal treatments for elutriated mixed incinerator ashes part 1 co incineration with Laboratory Waste
Aerosol and Air Quality Research, 2016Co-Authors: Jianwen Wang, Chenghsien Tsai, Chih Ta Wang, Yi Chyun Hsu, Yiming KuoAbstract:ABSTRACTThis study describes polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) behavior during the co-incineration of elutriated mixed incinerator ashes with Laboratory Waste. The input and output materials during elutriation and incineration processes were sampled and analyzed using a high-resolution gas chromatography/high-resolution mass spectrometry assay. The elutriation process mainly washed out soluble salts and thus resulted in an increase in the level of PCDD/F in the mixed incinerator ashes. After co-incineration with Laboratory Waste, the PCDD/F concentration of the flue gas met the regulated standard in Taiwan, and the PCDD/F mainly existed as a particulate phase. However, the PCDD/F levels in fly ashes that included elutriated ash in the incinerator were higher than those of fly ashes without it. The co-incineration output-mass/input-mass ratio of elutriated ash with Laboratory Waste was 0.34. According to the X-ray diffraction analysis results and scanning electron microscopy images, the main crystalline phase of the fly ashes was NaCl. The NaCl came from the reaction of HCl in the flue gas and the NaOH injected in the quenching tower after treatment in the co-incineration system.
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polychlorinated dibenzo p dioxin and dibenzofuran pcdd f emission behavior during incineration of Laboratory Wastes part 2 pcdd f profiles and characteristics of output materials
Aerosol and Air Quality Research, 2014Co-Authors: Weitung Liao, Chenghsien Tsai, Yafen Wang, Yingi Tsai, Yiming KuoAbstract:This study investigates the polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) profiles of output materials and the influence of Cl content of input materials during the incineration of Laboratory Waste. The specimens, namely bottom ash (BTA), first quenching tower ash (FQA), secondary quenching tower ash (SQA), baghouse ash (BHA), and stack flue gas (SFG), were sampled and analyzed using high-resolution gas chromatography/high-resolution mass spectrometry, fieldemission scanning electron microscopy (FE-SEM), ion chromatography, and X-ray diffraction (XRD). The Cl content was highest in FQA, followed by that in SQA, BHA, and BTA, and most of the Cl existed in soluble form, especially for FQA and SQA. The Cl mass was mainly distributed in FQA and BTA during incineration. The PCDD/F content of ash in each category was highly related to the Cl level in the input materials. The PCDD/Fs of all ashes and the particulate phase of SFG were mainly 7-Cl or 8-Cl PCDD/Fs, but those of the gas phase in SFG were mainly 4-6 Cl PCDD/Fs. In addition, an increase of Cl in the input materials increased the fractions of 7-Cl and 8-Cl PCDD/Fs. The XRD analysis results indicate that the main crystalline phase in fly ashes was NaCl. FE-SEM images show a porous granular morphology, which is consistent with the XRD analysis results.
