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

doi:10.1016/j.cjche.2015.06.017

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^*

^*Corresponding author for this work

CSE Sustainable Development

Hong Kong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

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 °C 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.

Original language	English
Pages (from-to)	94-100
Number of pages	7
Journal	Chinese Journal of Chemical Engineering
Volume	24
Issue number	1
DOIs	https://doi.org/10.1016/j.cjche.2015.06.017
Publication status	Published - 1 Jan 2016

Keywords

Freundlich isotherm
Iminodiacetate resin
Kinetic modeling
Langmuir isotherm
Langmuir-Freundlich isotherm

Access to Document

10.1016/j.cjche.2015.06.017

Cite this

@article{3dc59a381bdb4fe3a19e4cfaa30a5c57,

title = "Equilibrium and kinetics of copper ions removal from wastewater by ion exchange",

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 °C 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.",

keywords = "Freundlich isotherm, Iminodiacetate resin, Kinetic modeling, Langmuir isotherm, Langmuir-Freundlich isotherm",

author = "Siu, {P. C.C.} and Koong, {L. F.} and J. Saleem and J. Barford and G. McKay",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.cjche.2015.06.017",

language = "English",

volume = "24",

pages = "94--100",

journal = "Chinese Journal of Chemical Engineering",

issn = "1004-9541",

publisher = "Materials China",

number = "1",

}

TY - JOUR

T1 - Equilibrium and kinetics of copper ions removal from wastewater by ion exchange

AU - Siu, P. C.C.

AU - Koong, L. F.

AU - Saleem, J.

AU - Barford, J.

AU - McKay, G.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - 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 °C 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.

AB - 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 °C 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.

KW - Freundlich isotherm

KW - Iminodiacetate resin

KW - Kinetic modeling

KW - Langmuir isotherm

KW - Langmuir-Freundlich isotherm

UR - http://www.scopus.com/inward/record.url?scp=84957847635&partnerID=8YFLogxK

U2 - 10.1016/j.cjche.2015.06.017

DO - 10.1016/j.cjche.2015.06.017

M3 - Article

AN - SCOPUS:84957847635

SN - 1004-9541

VL - 24

SP - 94

EP - 100

JO - Chinese Journal of Chemical Engineering

JF - Chinese Journal of Chemical Engineering

IS - 1

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this