Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration
The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled fro...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Hu, Hongyun [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
|---|
| Schlagwörter: |
|---|
| Umfang: |
7 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia - Boreddy, S.K.R. ELSEVIER, 2016transfer abstract, Amsterdam [u.a.] |
|---|---|
| Übergeordnetes Werk: |
volume:35 ; year:2015 ; number:2 ; pages:2397-2403 ; extent:7 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.proci.2014.08.029 |
|---|
| Katalog-ID: |
ELV028739000 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | ELV028739000 | ||
| 003 | DE-627 | ||
| 005 | 20230625162648.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 180603s2015 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.proci.2014.08.029 |2 doi | |
| 028 | 5 | 2 | |a GBV00000000000006.pica |
| 035 | |a (DE-627)ELV028739000 | ||
| 035 | |a (ELSEVIER)S1540-7489(14)00413-1 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | |a 660 | |
| 082 | 0 | 4 | |a 660 |q DE-600 |
| 082 | 0 | 4 | |a 333.7 |q VZ |
| 082 | 0 | 4 | |a 610 |q VZ |
| 082 | 0 | 4 | |a 630 |a 640 |a 610 |q VZ |
| 100 | 1 | |a Hu, Hongyun |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| 264 | 1 | |c 2015transfer abstract | |
| 300 | |a 7 | ||
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a nicht spezifiziert |b z |2 rdamedia | ||
| 338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
| 520 | |a The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. | ||
| 520 | |a The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. | ||
| 650 | 7 | |a Alkali and alkaline earth metals |2 Elsevier | |
| 650 | 7 | |a CaCr2O4 |2 Elsevier | |
| 650 | 7 | |a Chromium oxidation |2 Elsevier | |
| 650 | 7 | |a MSW incineration |2 Elsevier | |
| 650 | 7 | |a Free CaO |2 Elsevier | |
| 700 | 1 | |a Xu, Zhang |4 oth | |
| 700 | 1 | |a Liu, Huan |4 oth | |
| 700 | 1 | |a Chen, Dunkui |4 oth | |
| 700 | 1 | |a Li, Aijun |4 oth | |
| 700 | 1 | |a Yao, Hong |4 oth | |
| 700 | 1 | |a Naruse, Ichiro |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Boreddy, S.K.R. ELSEVIER |t Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |d 2016transfer abstract |g Amsterdam [u.a.] |w (DE-627)ELV014705079 |
| 773 | 1 | 8 | |g volume:35 |g year:2015 |g number:2 |g pages:2397-2403 |g extent:7 |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.proci.2014.08.029 |3 Volltext |
| 912 | |a GBV_USEFLAG_U | ||
| 912 | |a GBV_ELV | ||
| 912 | |a SYSFLAG_U | ||
| 912 | |a SSG-OLC-PHA | ||
| 912 | |a GBV_ILN_40 | ||
| 951 | |a AR | ||
| 952 | |d 35 |j 2015 |e 2 |h 2397-2403 |g 7 | ||
| 953 | |2 045F |a 660 | ||
| author_variant |
h h hh |
|---|---|
| matchkey_str |
huhongyunxuzhangliuhuanchendunkuiliaijun:2015----:ehnsocrmuoiainylainaklnerheasuigui |
| hierarchy_sort_str |
2015transfer abstract |
| publishDate |
2015 |
| allfields |
10.1016/j.proci.2014.08.029 doi GBV00000000000006.pica (DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 DE-627 ger DE-627 rakwb eng 660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Hu, Hongyun verfasserin aut Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration 2015transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier Xu, Zhang oth Liu, Huan oth Chen, Dunkui oth Li, Aijun oth Yao, Hong oth Naruse, Ichiro oth Enthalten in Elsevier Boreddy, S.K.R. ELSEVIER Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia 2016transfer abstract Amsterdam [u.a.] (DE-627)ELV014705079 volume:35 year:2015 number:2 pages:2397-2403 extent:7 https://doi.org/10.1016/j.proci.2014.08.029 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 35 2015 2 2397-2403 7 045F 660 |
| spelling |
10.1016/j.proci.2014.08.029 doi GBV00000000000006.pica (DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 DE-627 ger DE-627 rakwb eng 660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Hu, Hongyun verfasserin aut Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration 2015transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier Xu, Zhang oth Liu, Huan oth Chen, Dunkui oth Li, Aijun oth Yao, Hong oth Naruse, Ichiro oth Enthalten in Elsevier Boreddy, S.K.R. ELSEVIER Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia 2016transfer abstract Amsterdam [u.a.] (DE-627)ELV014705079 volume:35 year:2015 number:2 pages:2397-2403 extent:7 https://doi.org/10.1016/j.proci.2014.08.029 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 35 2015 2 2397-2403 7 045F 660 |
| allfields_unstemmed |
10.1016/j.proci.2014.08.029 doi GBV00000000000006.pica (DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 DE-627 ger DE-627 rakwb eng 660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Hu, Hongyun verfasserin aut Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration 2015transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier Xu, Zhang oth Liu, Huan oth Chen, Dunkui oth Li, Aijun oth Yao, Hong oth Naruse, Ichiro oth Enthalten in Elsevier Boreddy, S.K.R. ELSEVIER Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia 2016transfer abstract Amsterdam [u.a.] (DE-627)ELV014705079 volume:35 year:2015 number:2 pages:2397-2403 extent:7 https://doi.org/10.1016/j.proci.2014.08.029 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 35 2015 2 2397-2403 7 045F 660 |
| allfieldsGer |
10.1016/j.proci.2014.08.029 doi GBV00000000000006.pica (DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 DE-627 ger DE-627 rakwb eng 660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Hu, Hongyun verfasserin aut Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration 2015transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier Xu, Zhang oth Liu, Huan oth Chen, Dunkui oth Li, Aijun oth Yao, Hong oth Naruse, Ichiro oth Enthalten in Elsevier Boreddy, S.K.R. ELSEVIER Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia 2016transfer abstract Amsterdam [u.a.] (DE-627)ELV014705079 volume:35 year:2015 number:2 pages:2397-2403 extent:7 https://doi.org/10.1016/j.proci.2014.08.029 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 35 2015 2 2397-2403 7 045F 660 |
| allfieldsSound |
10.1016/j.proci.2014.08.029 doi GBV00000000000006.pica (DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 DE-627 ger DE-627 rakwb eng 660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Hu, Hongyun verfasserin aut Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration 2015transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier Xu, Zhang oth Liu, Huan oth Chen, Dunkui oth Li, Aijun oth Yao, Hong oth Naruse, Ichiro oth Enthalten in Elsevier Boreddy, S.K.R. ELSEVIER Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia 2016transfer abstract Amsterdam [u.a.] (DE-627)ELV014705079 volume:35 year:2015 number:2 pages:2397-2403 extent:7 https://doi.org/10.1016/j.proci.2014.08.029 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 35 2015 2 2397-2403 7 045F 660 |
| language |
English |
| source |
Enthalten in Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia Amsterdam [u.a.] volume:35 year:2015 number:2 pages:2397-2403 extent:7 |
| sourceStr |
Enthalten in Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia Amsterdam [u.a.] volume:35 year:2015 number:2 pages:2397-2403 extent:7 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Alkali and alkaline earth metals CaCr2O4 Chromium oxidation MSW incineration Free CaO |
| dewey-raw |
660 |
| isfreeaccess_bool |
false |
| container_title |
Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |
| authorswithroles_txt_mv |
Hu, Hongyun @@aut@@ Xu, Zhang @@oth@@ Liu, Huan @@oth@@ Chen, Dunkui @@oth@@ Li, Aijun @@oth@@ Yao, Hong @@oth@@ Naruse, Ichiro @@oth@@ |
| publishDateDaySort_date |
2015-01-01T00:00:00Z |
| hierarchy_top_id |
ELV014705079 |
| dewey-sort |
3660 |
| id |
ELV028739000 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV028739000</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230625162648.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">180603s2015 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.proci.2014.08.029</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">GBV00000000000006.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV028739000</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S1540-7489(14)00413-1</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">660</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">333.7</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">610</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">630</subfield><subfield code="a">640</subfield><subfield code="a">610</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Hu, Hongyun</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2015transfer abstract</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">7</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Alkali and alkaline earth metals</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">CaCr2O4</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Chromium oxidation</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">MSW incineration</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Free CaO</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Xu, Zhang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Huan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, Dunkui</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Aijun</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yao, Hong</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Naruse, Ichiro</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Boreddy, S.K.R. ELSEVIER</subfield><subfield code="t">Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia</subfield><subfield code="d">2016transfer abstract</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV014705079</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:35</subfield><subfield code="g">year:2015</subfield><subfield code="g">number:2</subfield><subfield code="g">pages:2397-2403</subfield><subfield code="g">extent:7</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.proci.2014.08.029</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">35</subfield><subfield code="j">2015</subfield><subfield code="e">2</subfield><subfield code="h">2397-2403</subfield><subfield code="g">7</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">660</subfield></datafield></record></collection>
|
| author |
Hu, Hongyun |
| spellingShingle |
Hu, Hongyun ddc 660 ddc 333.7 ddc 610 ddc 630 Elsevier Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| authorStr |
Hu, Hongyun |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)ELV014705079 |
| format |
electronic Article |
| dewey-ones |
660 - Chemical engineering 333 - Economics of land & energy 610 - Medicine & health 630 - Agriculture & related technologies 640 - Home & family management |
| delete_txt_mv |
keep |
| author_role |
aut |
| collection |
elsevier |
| remote_str |
true |
| illustrated |
Not Illustrated |
| topic_title |
660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO Elsevier |
| topic |
ddc 660 ddc 333.7 ddc 610 ddc 630 Elsevier Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO |
| topic_unstemmed |
ddc 660 ddc 333.7 ddc 610 ddc 630 Elsevier Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO |
| topic_browse |
ddc 660 ddc 333.7 ddc 610 ddc 630 Elsevier Alkali and alkaline earth metals Elsevier CaCr2O4 Elsevier Chromium oxidation Elsevier MSW incineration Elsevier Free CaO |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
zu |
| author2_variant |
z x zx h l hl d c dc a l al h y hy i n in |
| hierarchy_parent_title |
Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |
| hierarchy_parent_id |
ELV014705079 |
| dewey-tens |
660 - Chemical engineering 330 - Economics 610 - Medicine & health 630 - Agriculture 640 - Home & family management |
| hierarchy_top_title |
Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)ELV014705079 |
| title |
Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| ctrlnum |
(DE-627)ELV028739000 (ELSEVIER)S1540-7489(14)00413-1 |
| title_full |
Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| author_sort |
Hu, Hongyun |
| journal |
Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |
| journalStr |
Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
600 - Technology 300 - Social sciences |
| recordtype |
marc |
| publishDateSort |
2015 |
| contenttype_str_mv |
zzz |
| container_start_page |
2397 |
| author_browse |
Hu, Hongyun |
| container_volume |
35 |
| physical |
7 |
| class |
660 660 DE-600 333.7 VZ 610 VZ 630 640 610 VZ |
| format_se |
Elektronische Aufsätze |
| author-letter |
Hu, Hongyun |
| doi_str_mv |
10.1016/j.proci.2014.08.029 |
| dewey-full |
660 333.7 610 630 640 |
| title_sort |
mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| title_auth |
Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| abstract |
The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. |
| abstractGer |
The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. |
| abstract_unstemmed |
The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition. |
| collection_details |
GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 |
| container_issue |
2 |
| title_short |
Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration |
| url |
https://doi.org/10.1016/j.proci.2014.08.029 |
| remote_bool |
true |
| author2 |
Xu, Zhang Liu, Huan Chen, Dunkui Li, Aijun Yao, Hong Naruse, Ichiro |
| author2Str |
Xu, Zhang Liu, Huan Chen, Dunkui Li, Aijun Yao, Hong Naruse, Ichiro |
| ppnlink |
ELV014705079 |
| mediatype_str_mv |
z |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth oth oth oth oth |
| doi_str |
10.1016/j.proci.2014.08.029 |
| up_date |
2024-07-06T19:35:55.134Z |
| _version_ |
1803859583444189184 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV028739000</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230625162648.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">180603s2015 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.proci.2014.08.029</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">GBV00000000000006.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV028739000</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S1540-7489(14)00413-1</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">660</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">333.7</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">610</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">630</subfield><subfield code="a">640</subfield><subfield code="a">610</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Hu, Hongyun</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2015transfer abstract</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">7</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The influence of alkali and alkaline earth metals on the formation of hexavalent chromium (Cr(VI)) during municipal solid waste (MSW) incineration has drawn much attention due to the high toxicity of Cr(VI). In the present work, the distribution of Cr(VI) in MSW incineration ash residues sampled from various plants was measured. The results show that the oxidation of chromium in combustion process is determined by the content of free CaO (f-CaO) in the MSW and is facilitated by alkali metal compounds at lower temperatures in the flue gas cooling process. In some cases, the content of f-CaO is low during MSW incineration, and the oxidation of Cr2O3 in the case of low mole ratio of Ca and Cr was investigated. The mixture of CaO and Cr2O3 was heated at temperatures ranging from 973 to 1373K and the oxidation of Cr2O3 was detected by determining the consumption of oxygen in the carrier gas using an online mass spectrometer. According to the results, more chromium is oxidized in the thermally treated mixture at 1173K than at higher temperatures. At 1173K, part of chromium is oxidized to form CaCrO4 and the unoxidized chromium remains in the form of Cr2O3. In contrast, Cr2O3 is prior to form Ca3(CrO4)2 at higher temperatures and the unoxidized chromium is mostly transformed into CaCr2O4. Compared with Cr2O3, CaCr2O4 is more easily oxidized by CaO or K2CO3, indicating that more Cr(VI) would be formed during MSW incineration when trivalent chromium (Cr(III)) is transformed into CaCr2O4. Measures should be taken to suppress the formation of CaCr2O4 such as the control of the operating temperature and CaO addition.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Alkali and alkaline earth metals</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">CaCr2O4</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Chromium oxidation</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">MSW incineration</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Free CaO</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Xu, Zhang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Huan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, Dunkui</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Aijun</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yao, Hong</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Naruse, Ichiro</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Boreddy, S.K.R. ELSEVIER</subfield><subfield code="t">Hygroscopic growth of water-soluble matter extracted from remote marine aerosols over the western North Pacific: Influence of pollutants transported from East Asia</subfield><subfield code="d">2016transfer abstract</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV014705079</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:35</subfield><subfield code="g">year:2015</subfield><subfield code="g">number:2</subfield><subfield code="g">pages:2397-2403</subfield><subfield code="g">extent:7</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.proci.2014.08.029</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">35</subfield><subfield code="j">2015</subfield><subfield code="e">2</subfield><subfield code="h">2397-2403</subfield><subfield code="g">7</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">660</subfield></datafield></record></collection>
|
| score |
7.4021244 |