Kinetics of adsorption of Co(II) removal from water and wastewater by ion exchange resins

S. Rengaraj, Seung Hyeon Moon

Research output: Contribution to journalArticle

267 Citations (Scopus)

Abstract

The capacity of ion exchange resins, IRN77 and SKN1, for removal of cobalt from aqueous solution has been investigated under different conditions namely initial solution pH, initial metal-ion concentration, and contact time. The equilibrium data obtained in this study have been found to fit both the Langmuir and Freundlich adsorption isotherms. The adsorption of Co(II) on these resins follows first-order reversible kinetics. The film diffusion of Co(II) in these ion exchange resins was shown to be the main rate limiting step. The studies showed that these cation exchange resins can be used as efficient adsorbent material for the removal of Co(II) from aqueous solutions.

Original languageEnglish
Pages (from-to)1783-1793
Number of pages11
JournalWater Research
Volume36
Issue number7
DOIs
Publication statusPublished - 2002

Fingerprint

Ion exchange resins
resin
ion exchange
Wastewater
adsorption
Adsorption
wastewater
kinetics
Kinetics
Resins
Water
aqueous solution
Adsorption isotherms
water
Contacts (fluid mechanics)
Adsorbents
Metal ions
Cobalt
Ion exchange
Positive ions

Keywords

  • Adsorption isotherms
  • Adsorption kinetics
  • Cobalt(II)
  • Ion exchange resin
  • Wastewater

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Kinetics of adsorption of Co(II) removal from water and wastewater by ion exchange resins. / Rengaraj, S.; Moon, Seung Hyeon.

In: Water Research, Vol. 36, No. 7, 2002, p. 1783-1793.

Research output: Contribution to journalArticle

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