Prediction of gaseous pollutants and heavy metals during fluidized bed incineration of dye sludge

Jang, Jeong-Gook; Kim, Woo-Hyun; Kim, Miran; Chun, Honggu; Lee, Jea-Keun

doi:10.1007/bf02698298

Cited by 19 publications

(10 citation statements)

References 1 publication

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“…These ratios are therefore equivalent to the partition coefficients (k i ) used by Lee and co-workers [14][15][16], who calculated and reported only two partition coefficients (bottom bed and fly ash collected by cyclones).…”

Section: Effect Of the Temperature Of The Incinerator Bedmentioning

confidence: 96%

The partitioning of heavy metals in incineration of sludges and waste in a bubbling fluidized bed

Toledo

Corella

2005

Journal of Hazardous Materials

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Section: Effect Of the Temperature Of The Incinerator Bedmentioning

confidence: 96%

The partitioning of heavy metals in incineration of sludges and waste in a bubbling fluidized bed

Toledo

Corella

2005

Journal of Hazardous Materials

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“…Equilibrium composition represents the most stable chemical composition within a system under a specific set of conditions. The calculated equilibrium composition would reveal the preferred chemical speciation under a specific state, which in turn, suggests potential chemical reactions that may occur within the system [23]. The equilibrium calculation results show that CdCO 3 (s) is the dominant species at temperatures below 250 • C and it decomposes completely at above 427 • C. CdO(s) becomes the only Cd species between 427 and 727 • C. Above 800 • C, CdO(s) begins to undergo significant decomposition and the fraction of Cd(g) increases with temperature.…”

Section: Impact Of Incineration Time and Temperaturementioning

confidence: 99%

“…At equilibrium the free energy of a system is minimized. By combining this fact with mass conservation constraints it is possible to develop a series of algebraic equations that can be solved to determine the equilibrium composition of a given system [23].…”

Section: Thermodynamic Equilibrium Simulationmentioning

confidence: 99%

“…Thermodynamic equilibrium simulation principally delineates the stable phases that can form under specific operating conditions. When both analytical and thermodynamic data are assimilated, the reaction mechanisms and pathways of trace elements in the incineration process may be proposed [23]. When burning, MSW constitutes a multi-component and multiphase system.…”

Section: Thermodynamic Equilibrium Simulationmentioning

confidence: 99%

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Experimental and thermodynamic investigation on transfer of cadmium influenced by sulfur and chlorine during municipal solid waste (MSW) incineration

Zhang

Chen

Meng

et al. 2008

Journal of Hazardous Materials

113

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“…At equilibrium, the free energy of a system is minimized. By combining this fact with mass conservation constraints, it is possible to develop a series of algebraic equations that can be solved to determine the equilibrium composition of a given system (Jang et al 2001).…”

Section: Thermodynamic Equilibrium Simulationmentioning

confidence: 99%

Effect of different sulfides on cadmium distribution during sludge combustion based on experimental and thermodynamic calculation approaches

Liu

Sun

et al. 2014

Environ Sci Pollut Res

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The effects of sulfur compounds on the migration of a semi-volatile heavy metal (cadmium) during sludge incineration were investigated with two methods, i.e., experiments in a tubular furnace reactor and thermodynamic equilibrium calculations. The representative typical sludge with and without the addition of sulfur compounds was incinerated at 850 °C. The partitioning of Cd among the solid phase (bottom ash) and gas phase (fly ash and flue gas) was quantified. The results indicate that sulfur compounds in the elemental form and a reduced state could stabilize Cd in the form of CdS, aluminosilicate minerals, and polymetallic sulfides, whereas sulfur in the oxidized forms slightly increases Cd volatilization during incineration. For Cd solidification points, the inhibition effect on the volatilization of Cd is as follows: S > Na2SO4 > Na2S. Chemical equilibrium calculations indicate that sulfur binds with Cd and alters Cd speciation at low temperatures (<950 K). Furthermore, SiO2- and Al2O3-containing minerals can function as sorbents stabilizing Cd as condensed phase solids (CdSiO4 and CdAl2O4) according to the results of equilibrium calculations. These findings provide useful information for understanding the partitioning of Cd and thus facilitate the development of strategies to control Cd volatilization during sludge incineration.

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Prediction of gaseous pollutants and heavy metals during fluidized bed incineration of dye sludge

Cited by 19 publications

References 1 publication

The partitioning of heavy metals in incineration of sludges and waste in a bubbling fluidized bed

The partitioning of heavy metals in incineration of sludges and waste in a bubbling fluidized bed

Experimental and thermodynamic investigation on transfer of cadmium influenced by sulfur and chlorine during municipal solid waste (MSW) incineration

Effect of different sulfides on cadmium distribution during sludge combustion based on experimental and thermodynamic calculation approaches

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