Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials
Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wang, K. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
Acid/base neutralization capacity Effective diffusion coefficient |
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| Anmerkung: |
© Islamic Azad University (IAU) 2021 |
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| Übergeordnetes Werk: |
Enthalten in: International journal of environmental science and technology - Tehran : Islamic Azad University, 2004, 19(2021), 8 vom: 22. Sept., Seite 7457-7468 |
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| Übergeordnetes Werk: |
volume:19 ; year:2021 ; number:8 ; day:22 ; month:09 ; pages:7457-7468 |
| Links: |
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| DOI / URN: |
10.1007/s13762-021-03652-0 |
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SPR04758565X |
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| 245 | 1 | 0 | |a Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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| 520 | |a Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. | ||
| 650 | 4 | |a Acid/base neutralization capacity |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Effective diffusion coefficient |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Leaching index |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Long-term dynamic leaching |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Tessier sequential extraction procedure |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Static leaching tests |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Li, K. |4 aut | |
| 700 | 1 | |a Huang, X. |4 aut | |
| 700 | 1 | |a Ni, W. |4 aut | |
| 700 | 1 | |a Zhang, S. |4 aut | |
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10.1007/s13762-021-03652-0 doi (DE-627)SPR04758565X (SPR)s13762-021-03652-0-e DE-627 ger DE-627 rakwb eng Wang, K. verfasserin aut Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Islamic Azad University (IAU) 2021 Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 Li, K. aut Huang, X. aut Ni, W. aut Zhang, S. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 19(2021), 8 vom: 22. Sept., Seite 7457-7468 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 https://dx.doi.org/10.1007/s13762-021-03652-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 19 2021 8 22 09 7457-7468 |
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10.1007/s13762-021-03652-0 doi (DE-627)SPR04758565X (SPR)s13762-021-03652-0-e DE-627 ger DE-627 rakwb eng Wang, K. verfasserin aut Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Islamic Azad University (IAU) 2021 Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 Li, K. aut Huang, X. aut Ni, W. aut Zhang, S. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 19(2021), 8 vom: 22. Sept., Seite 7457-7468 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 https://dx.doi.org/10.1007/s13762-021-03652-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 19 2021 8 22 09 7457-7468 |
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10.1007/s13762-021-03652-0 doi (DE-627)SPR04758565X (SPR)s13762-021-03652-0-e DE-627 ger DE-627 rakwb eng Wang, K. verfasserin aut Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Islamic Azad University (IAU) 2021 Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 Li, K. aut Huang, X. aut Ni, W. aut Zhang, S. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 19(2021), 8 vom: 22. Sept., Seite 7457-7468 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 https://dx.doi.org/10.1007/s13762-021-03652-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 19 2021 8 22 09 7457-7468 |
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10.1007/s13762-021-03652-0 doi (DE-627)SPR04758565X (SPR)s13762-021-03652-0-e DE-627 ger DE-627 rakwb eng Wang, K. verfasserin aut Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Islamic Azad University (IAU) 2021 Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 Li, K. aut Huang, X. aut Ni, W. aut Zhang, S. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 19(2021), 8 vom: 22. Sept., Seite 7457-7468 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 https://dx.doi.org/10.1007/s13762-021-03652-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 19 2021 8 22 09 7457-7468 |
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10.1007/s13762-021-03652-0 doi (DE-627)SPR04758565X (SPR)s13762-021-03652-0-e DE-627 ger DE-627 rakwb eng Wang, K. verfasserin aut Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Islamic Azad University (IAU) 2021 Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 Li, K. aut Huang, X. aut Ni, W. aut Zhang, S. aut Enthalten in International journal of environmental science and technology Tehran : Islamic Azad University, 2004 19(2021), 8 vom: 22. Sept., Seite 7457-7468 (DE-627)510463398 (DE-600)2230399-6 1735-2630 nnns volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 https://dx.doi.org/10.1007/s13762-021-03652-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 19 2021 8 22 09 7457-7468 |
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Enthalten in International journal of environmental science and technology 19(2021), 8 vom: 22. Sept., Seite 7457-7468 volume:19 year:2021 number:8 day:22 month:09 pages:7457-7468 |
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In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acid/base neutralization capacity</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Effective diffusion coefficient</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Leaching index</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Long-term dynamic leaching</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tessier sequential extraction procedure</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Static leaching tests</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, K.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Huang, X.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ni, W.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">International journal of environmental science and technology</subfield><subfield code="d">Tehran : Islamic Azad University, 2004</subfield><subfield code="g">19(2021), 8 vom: 22. 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Wang, K. |
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Wang, K. misc Acid/base neutralization capacity misc Effective diffusion coefficient misc Leaching index misc Long-term dynamic leaching misc Tessier sequential extraction procedure misc Static leaching tests Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials Acid/base neutralization capacity (dpeaa)DE-He213 Effective diffusion coefficient (dpeaa)DE-He213 Leaching index (dpeaa)DE-He213 Long-term dynamic leaching (dpeaa)DE-He213 Tessier sequential extraction procedure (dpeaa)DE-He213 Static leaching tests (dpeaa)DE-He213 |
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misc Acid/base neutralization capacity misc Effective diffusion coefficient misc Leaching index misc Long-term dynamic leaching misc Tessier sequential extraction procedure misc Static leaching tests |
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misc Acid/base neutralization capacity misc Effective diffusion coefficient misc Leaching index misc Long-term dynamic leaching misc Tessier sequential extraction procedure misc Static leaching tests |
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Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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Wang, K. |
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International journal of environmental science and technology |
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leaching characteristics of cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
| abstract |
Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. © Islamic Azad University (IAU) 2021 |
| abstractGer |
Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. © Islamic Azad University (IAU) 2021 |
| abstract_unstemmed |
Abstract The immobilization of Cr is important for the treatment of municipal solid waste incineration fly ash, and the solidification of Cr in cement-free materials has not been fully investigated. In this study, blast furnace slag-based cementitious materials were used as binders to immobilize Cr-bearing fly ash to prepare solidified materials. The environmental safety of Cr in solidified materials was demonstrated using static batch leaching tests. Mass transfer leaching tests showed that the Cr leaching concentrations were 38.8, 41.6, 43.0, and 47.5 μg/L, with immobilization rates all above 90%. The mechanism of Cr leached from the solidified material was mainly diffusion, with effective diffusion coefficient values between 8.69*$ 10^{–14} $ and 1.05*$ 10^{–11} $, and the mean leaching index values were greater than 9. In dynamic droplet leaching tests, the Cr leaching concentrations were less than 50 μg/L; the mechanism of Cr leached from solidified materials was mainly a combination of wash-off and diffusion. Acid/base neutralization capacity tests showed that the Cr leaching concentrations were higher in acidic and alkaline conditions than at pH = 8–10. Cr existed mainly as $ Cr^{6+} $ in alkaline and strongly acidic environments, while existing mainly as $ Cr^{3+} $ in weakly acidic and neutral environments. Finally, Tessier sequential extraction demonstrated that the percentage of easily mobile Cr decreased from 55.36 to 14.88–27.57% after solidification, whereas the percentage of non-mobile Cr increased from 44.64 to 62.43–85.12%. These results suggest that the state of Cr became increasingly stable after S/S treatment, proving that the S/S procedure applied in this study effectively solidified Cr in fly ash. © Islamic Azad University (IAU) 2021 |
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| title_short |
Leaching characteristics of Cr in municipal solid waste incineration fly ash solidified/stabilized using blast furnace slag-based cementitious materials |
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https://dx.doi.org/10.1007/s13762-021-03652-0 |
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Li, K. Huang, X. Ni, W. Zhang, S. |
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Li, K. Huang, X. Ni, W. Zhang, S. |
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10.1007/s13762-021-03652-0 |
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2024-07-03T13:42:13.778Z |
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| score |
7.4020967 |