Stabilization of copper sludge by high-temperature CuFe2O4 synthesis process

Hsing Cheng Lu, Juu En Chang, Pai Haung Shih, Li Choung Chiang

研究成果: Article

17 引文 (Scopus)

摘要

Copper sludge was stabilized by high-temperature CuFe2O4 ferritization technique with different sintering temperature, isothermal time and Fe3+/M2+ molar ratio. Copper is stabilized by inserting the copper ion into the stable CuFe2O4 structure by ferritization. The result indicates that sintering temperature above 800 °C would be proper temperature range for CuFe2O4 synthesis. When the Fe3+/M2+ molar ratio of sludges are above the stoichiometric ratio of 2, copper ion in sludge would be stabilized and hence be kept from leaching out. From the result of relative XRD intensity ratio, the equilibrium of the ferritization reaction could be reached by prolonging the isothermal time to 10 h. Judging by the TCLP results, the optimum ferritization parameters are Fe3+/M2+ molar ratio equal to 3.5, sintering temperature at 800 °C and isothermal time above 10 h.

原文English
頁(從 - 到)504-509
頁數6
期刊Journal of Hazardous Materials
150
發行號3
DOIs
出版狀態Published - 2008 二月 11

指紋

Sewage
Copper
stabilization
Stabilization
sludge
copper
Temperature
Sintering
temperature
ion
Ions
X-ray diffraction
leaching
Leaching
CuFe2O4
sintering

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

引用此文

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abstract = "Copper sludge was stabilized by high-temperature CuFe2O4 ferritization technique with different sintering temperature, isothermal time and Fe3+/M2+ molar ratio. Copper is stabilized by inserting the copper ion into the stable CuFe2O4 structure by ferritization. The result indicates that sintering temperature above 800 °C would be proper temperature range for CuFe2O4 synthesis. When the Fe3+/M2+ molar ratio of sludges are above the stoichiometric ratio of 2, copper ion in sludge would be stabilized and hence be kept from leaching out. From the result of relative XRD intensity ratio, the equilibrium of the ferritization reaction could be reached by prolonging the isothermal time to 10 h. Judging by the TCLP results, the optimum ferritization parameters are Fe3+/M2+ molar ratio equal to 3.5, sintering temperature at 800 °C and isothermal time above 10 h.",
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Stabilization of copper sludge by high-temperature CuFe2O4 synthesis process. / Lu, Hsing Cheng; Chang, Juu En; Shih, Pai Haung; Chiang, Li Choung.

於: Journal of Hazardous Materials, 卷 150, 編號 3, 11.02.2008, p. 504-509.

研究成果: Article

TY - JOUR

T1 - Stabilization of copper sludge by high-temperature CuFe2O4 synthesis process

AU - Lu, Hsing Cheng

AU - Chang, Juu En

AU - Shih, Pai Haung

AU - Chiang, Li Choung

PY - 2008/2/11

Y1 - 2008/2/11

N2 - Copper sludge was stabilized by high-temperature CuFe2O4 ferritization technique with different sintering temperature, isothermal time and Fe3+/M2+ molar ratio. Copper is stabilized by inserting the copper ion into the stable CuFe2O4 structure by ferritization. The result indicates that sintering temperature above 800 °C would be proper temperature range for CuFe2O4 synthesis. When the Fe3+/M2+ molar ratio of sludges are above the stoichiometric ratio of 2, copper ion in sludge would be stabilized and hence be kept from leaching out. From the result of relative XRD intensity ratio, the equilibrium of the ferritization reaction could be reached by prolonging the isothermal time to 10 h. Judging by the TCLP results, the optimum ferritization parameters are Fe3+/M2+ molar ratio equal to 3.5, sintering temperature at 800 °C and isothermal time above 10 h.

AB - Copper sludge was stabilized by high-temperature CuFe2O4 ferritization technique with different sintering temperature, isothermal time and Fe3+/M2+ molar ratio. Copper is stabilized by inserting the copper ion into the stable CuFe2O4 structure by ferritization. The result indicates that sintering temperature above 800 °C would be proper temperature range for CuFe2O4 synthesis. When the Fe3+/M2+ molar ratio of sludges are above the stoichiometric ratio of 2, copper ion in sludge would be stabilized and hence be kept from leaching out. From the result of relative XRD intensity ratio, the equilibrium of the ferritization reaction could be reached by prolonging the isothermal time to 10 h. Judging by the TCLP results, the optimum ferritization parameters are Fe3+/M2+ molar ratio equal to 3.5, sintering temperature at 800 °C and isothermal time above 10 h.

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