Thermodynamic Equilibrium Calculations on Cd Transformation during Sewage Sludge Incineration

Thermodynamic equilibrium calculations were performed to reveal the distribution of cadmium during the sewage sludge incineration process. During sludge incineration in the presence of major minerals, such as SiO2, Al2O3 and CaO, the strongest effect was exerted by SiO2 on the Cd transformation comp...

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Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 88(2016), 6 vom: 25. Juni, Seite 548-56
1. Verfasser: Liu, Jing-yong (VerfasserIn)
Weitere Verfasser: Huang, Limao, Sun, Shuiyu, Ning, Xun'an, Kuo, Jiahong, Sun, Jian, Wang, Yujie, Xie, Wuming
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Sewage Cadmium 00BH33GNGH Chlorine 4R7X1O2820 Sulfur 70FD1KFU70
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520 |a Thermodynamic equilibrium calculations were performed to reveal the distribution of cadmium during the sewage sludge incineration process. During sludge incineration in the presence of major minerals, such as SiO2, Al2O3 and CaO, the strongest effect was exerted by SiO2 on the Cd transformation compared with the effect of others. The stable solid product of CdSiO3 was formed easily with the reaction between Cd and SiO2, which can restrain the emissions of gaseous Cd pollutants. CdCl2 was formed more easily in the presence of chloride during incineration, thus, the volatilization of Cd was advanced by increasing chlorine content. At low temperatures, the volatilization of Cd was restrained due to the formation of the refractory solid metal sulfate. At high temperatures, the speciation of Cd was not affected by the presence of sulfur, but sulfur could affect the formation temperature of gaseous metals 
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700 1 |a Huang, Limao  |e verfasserin  |4 aut 
700 1 |a Sun, Shuiyu  |e verfasserin  |4 aut 
700 1 |a Ning, Xun'an  |e verfasserin  |4 aut 
700 1 |a Kuo, Jiahong  |e verfasserin  |4 aut 
700 1 |a Sun, Jian  |e verfasserin  |4 aut 
700 1 |a Wang, Yujie  |e verfasserin  |4 aut 
700 1 |a Xie, Wuming  |e verfasserin  |4 aut 
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