Equilibrium and kinetics of copper ions removal from wastewater by ion exchange

P.C.C. Siu; L.F. Koong; J. Saleem; J. Barford; G.McKay

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Equilibrium and kinetics of copper ions removal from wastewater by ion exchange

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Equilibrium and kinetics of copper ions removal from wastewater by ion exchange
- Chinese Journal of Chemical Engineering Vol. 24, Issue 1, Pages: 94-100(2016)
- Affiliations：
  
  2 Division of Sustainable Development, College of Science, Engineering and Technology, Hamad Bin Khalifa University, Qatar Foundation, Doha,Qatar
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2016
- Accepted：
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P.C.C. Siu, L.F. Koong, J. Saleem, J. Barford, G.McKay. Equilibrium and kinetics of copper ions removal from wastewater by ion exchange[J]. Chin.J.Chem.Eng., 2016, 24(1): 94-100.
DOI：

P.C.C. Siu, L.F. Koong, J. Saleem, J. Barford, G.McKay. Equilibrium and kinetics of copper ions removal from wastewater by ion exchange[J]. Chin.J.Chem.Eng., 2016, 24(1): 94-100. DOI：

摘要

Abstract

The removal of copper ions from wastewater by ion exchange has been studied using an iminodiacetate resin. The capacity of the resin for the copper ions has been determined to be 2.30 mmol·g

-1

by measuring the equilibrium isotherm at 25 ℃ and initial pH value of 3.5 where the final equilibrium pH value is 5. An analysis of equilibrium isotherm models showed that the best fit model was the Langmuir-Freundlich. The kinetics of the ion exchange process have been investigated and four kinetic models have been tested namely: Ritchie model

pseudo-second order model

pseudo-first order model and the Elovich model. The pseudo-second order model provides the best fit to the kinetic data.

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