Arsenic removal in polluted water using pillared clays

Iron oxide pillared clays synthesized by a conventional method was developed as a new material that is capable and useful for retaining As in drinking water. Montmorillonite (Mt) was used as clay mineral starting material. Solid materials were characterized by X-ray Diffraction (XRD), N2 adsorption/...

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Detalles Bibliográficos
Autores principales: Iriel, A., Fernández Cirelli, A., Marco-Brown, J.L., Trinelli, M.A., Pérez, A.L., Dos Santos Afonso, M.
Formato: CONF
Materias:
Adsorption isotherms
Arsenic
Clay minerals
Dispersions
Pollution control
Water pollution
X ray diffraction
Adsorption capacities
Adsorption equilibria
Arsenic removal
Conventional methods
Modified clays
Montmorillonites (Mt)
Polluted water
Solid material
Adsorption
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p670_Iriel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Iron oxide pillared clays synthesized by a conventional method was developed as a new material that is capable and useful for retaining As in drinking water. Montmorillonite (Mt) was used as clay mineral starting material. Solid materials were characterized by X-ray Diffraction (XRD), N2 adsorption/desorption isotherms and the BET area was determined. Dispersions were prepared with solid material and arsenic solutions in a ratio of 8 g L -1 and the adsorption capacity was evaluated at several pH values. As(V) was completely removed from aqueous solution at pH 4.0 and 6.5 using the modified clays, while low adsorption was observed using Mt. Adsorption equilibrium was reached at reaction time of one hour approximately. © 2014 Taylor & Francis Group.

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