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Removal of humic acid and Cr(Ⅵ) from water using ZnO-30N-zeolite.
Wang, Lingling; Dionysiou, Dionysios D; Lin, Jianming; Huang, Yuxian; Xie, Xiaolan.
Afiliación
  • Wang L; College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou, 362000, China. Electronic address: lasier_wang@hotmail.com.
  • Dionysiou DD; Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, 705 Engineering Research Center, University of Cincinnati, Cincinnati, OH, 45221-0012, USA.
  • Lin J; Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Huaqiao University, Xiamen, 361021, China.
  • Huang Y; College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou, 362000, China.
  • Xie X; College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou, 362000, China.
Chemosphere ; 279: 130491, 2021 Sep.
Article en En | MEDLINE | ID: mdl-33878697
ABSTRACT
The mutual influence of humic acid and Cr(Ⅵ) on water purification using ZnO-30N-zeolite was investigated in the laboratory. The removal of humic acid by ZnO-30N-zeolite with both pollutants present reached 90% in 5 min. With humic acid alone, more than one day was required to reach the same level of removal. Synergy between humic acid and chromium was thus demonstrated in their removal process by ZnO-30N-zeolite. However, the presence of humic acid showed no obvious effect on the removal capacity of Cr(Ⅵ) by ZnO-30N-zeolite. X-ray photoelectron spectra showed that Cr(VI) was reduced to Cr(Ⅲ) in the process by both humic acid and ZnO-30N-zeolite. The kinetic mechanism of synergistic removal of humic acid and Cr(Ⅵ) by ZnO-30N-zeolite in binary pollutant system was also proposed.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Óxido de Zinc / Zeolitas / Purificación del Agua Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article
Texto completo
Imprimir
XML
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Óxido de Zinc / Zeolitas / Purificación del Agua Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article