REMOVAL OF CR(VI) BY STABILIZED SOLVENT IMPREGNATED RESIN (SIR) PREPARED BY USING A HYDROPHILIC POLYMER ADSORBENT AND ALIQUAT 336

Daniela V. Morales; Ozge Kusku; Bernabé L. Rivas; Muserref Arda; Nalan Kabay; Marek Bryjak

Keywords: adsorption, chromium, Ion exchange resins, solvent impregnated resin (SIR)

Abstract

The solvent impregnated resin (SIR) was prepared by using Diaion HP-2MG as a hydrophilic polymer adsorbent and commercial Aliquat 336 as extractant for hexavalent chromium Cr(VI) removal from aqueous solution. The resulting SIRs were stabilized by coating using poly(vinyl alcohol) (PVA) and divinylsulfone as crosslinking reagent with different amounts. In order to predict the mechanism involved in the adsorption process, several kinetic models were used. Among them, the sorption kinetics was usually described by pseudo-first or pseudo-second order models. The kinetic behavior of stabilized SIRs was investigated as a function of amount of crosslinking reagent by batch adsorption equilibrium. Uncoated resins exhibited a faster kinetics than coated ones. It was possible to improve the kinetic performance of crosslinked resins with conditioning by using NaOH-NaCl mixture. The breakthrough profiles of SIRs were also influenced by amount of crosslinking reagent.

Más información

Título según WOS: REMOVAL OF CR(VI) BY STABILIZED SOLVENT IMPREGNATED RESIN (SIR) PREPARED BY USING A HYDROPHILIC POLYMER ADSORBENT AND ALIQUAT 336
Título según SCOPUS: Removal of Cr(VI) by stabilized solvent impregnated resin (SIR) prepared by using a hydrophilic polymer adsorbent and Aliquat 336.
Título según SCIELO: REMOVAL OF CR(VI) BY STABILIZED SOLVENT IMPREGNATED RESIN (SIR) PREPARED BY USING A HYDROPHILIC POLYMER ADSORBENT AND ALIQUAT 336.
Título de la Revista: JOURNAL OF THE CHILEAN CHEMICAL SOCIETY
Volumen: 64
Número: 2
Editorial: 2013
Fecha de publicación: 2019
Página de inicio: 4432
Página final: 4436
Idioma: English
DOI:

10.4067/S0717-97072019000204432

Notas: ISI, SCIELO, SCOPUS