Electrochemical characterization of ion-exchange resin beds and removal of cobalt by electrodeionization for high purity water production

K. H. Yeon, J. H. Seong, S. Rengaraj, S. H. Moon

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The characterization of three cation exchange resins, IRN77, SKN1, and IR120, for the removal of cobalt ions from an aqueous solution by. electrodeionization (EDI) was studied. The study includes investigation of resin beds in terms of their ion exchange capacity, electrical conductivity, and zeta potential. The conductivity of a resin bed was analyzed using a porous-plug model to understand the current path. From the experiments, more than a 97% cobalt ion removal was achieved under optimal conditions. Furthermore, production of ultrapure water with a two-stage EDI process was tested for the reuse of treated water.

Original languageEnglish
Pages (from-to)443-462
Number of pages20
JournalSeparation Science and Technology (Philadelphia)
Volume38
Issue number2
DOIs
Publication statusPublished - 2003

Fingerprint

Ion Exchange Resins
Ion exchange resins
Cobalt
Resins
Cation Exchange Resins
Ions
Water
Ion exchange
Zeta potential
Positive ions
Experiments
Electric Conductivity

Keywords

  • Cobalt removal
  • Electrochemical characterization
  • Electrodeionization
  • Ion exchange resin
  • Porous-plug model

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Filtration and Separation
  • Process Chemistry and Technology
  • Chemistry(all)

Cite this

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T1 - Electrochemical characterization of ion-exchange resin beds and removal of cobalt by electrodeionization for high purity water production

AU - Yeon, K. H.

AU - Seong, J. H.

AU - Rengaraj, S.

AU - Moon, S. H.

PY - 2003

Y1 - 2003

N2 - The characterization of three cation exchange resins, IRN77, SKN1, and IR120, for the removal of cobalt ions from an aqueous solution by. electrodeionization (EDI) was studied. The study includes investigation of resin beds in terms of their ion exchange capacity, electrical conductivity, and zeta potential. The conductivity of a resin bed was analyzed using a porous-plug model to understand the current path. From the experiments, more than a 97% cobalt ion removal was achieved under optimal conditions. Furthermore, production of ultrapure water with a two-stage EDI process was tested for the reuse of treated water.

AB - The characterization of three cation exchange resins, IRN77, SKN1, and IR120, for the removal of cobalt ions from an aqueous solution by. electrodeionization (EDI) was studied. The study includes investigation of resin beds in terms of their ion exchange capacity, electrical conductivity, and zeta potential. The conductivity of a resin bed was analyzed using a porous-plug model to understand the current path. From the experiments, more than a 97% cobalt ion removal was achieved under optimal conditions. Furthermore, production of ultrapure water with a two-stage EDI process was tested for the reuse of treated water.

KW - Cobalt removal

KW - Electrochemical characterization

KW - Electrodeionization

KW - Ion exchange resin

KW - Porous-plug model

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