A thermodynamic study of arsenic adsorption onto iron species generated by electrocoagulation

Jose R. Parga, Alhondra De Los Santos, Jesús L. Valenzuela

Resultado de la investigación: Capítulo del libro/informe/acta de congresoCapítulorevisión exhaustiva

Resumen

The present study evaluated the feasibility of using iron species generated by electrocoagulation (EC) as an adsorbent for removal As(III/As(V) from aqueous media. The full potential of EC was evident in that more than 99 percent of arsenic was removed without addition of chemical reagents. The adsorbent iron-species generated by EC was characterized by Chemical Analyses, X-Ray Diffraction and Scanning Electron Microscopy. The experimental data were correlated by employing a Langmuir adsorption isotherm. Thermodynamic parameters such as ΔH°, ΔS° and ΔG° were calculated. The adsorption process was found to be exothermic and spontaneous.
Idioma originalEspañol (México)
Título de la publicación alojadaProceedings of the 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008
Páginas199-206
Número de páginas8
EstadoPublicada - 2008

Serie de la publicación

NombreProceedings of the 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008

Palabras clave

  • Arsenic adsorption
  • Electrocoagulation
  • Iron species

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