Derivation of adsorption parameters for nanofiltration membranes using a 1-pK Basic Stern model

W.B. Samuel de Lint; Nieck E. Benes; Arnoud P. Higler; Henk Verweij

doi:10.1016/S0011-9164(02)00391-0

Derivation of adsorption parameters for nanofiltration membranes using a 1-pK Basic Stern model

W.B. Samuel de Lint, Nieck E. Benes, Arnoud P. Higler, Henk Verweij

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Abstract

The ion retention and flux of nanofiltration (NF) membranes are to a large extent determined by the membrane surface charge. This surface charge is in turn strongly influenced by adsorption of ions from the solution onto the membrane material. A 1-pK adsorption model with a Basic Stern electrostatic double layer model is used to describe ion adsorption, and the sensitivity of this model for various parameters is discussed. From a non-linear regression analysis of literature data [1,2] regarding the surface charge and the zeta-potential, adsorption parameters for the 1 pK model are obtained for sodium chloride on γ-alumina. The 1-pK Basic Stern model could predict the surface charge well, except for the highest concentration of 1000 mol/m3. Reasonable agreement is found between the measured zeta-potentials and the model predictions.

Original language	English
Pages (from-to)	87-95
Journal	Desalination
Volume	145
Issue number	1-3
DOIs	https://doi.org/10.1016/S0011-9164(02)00391-0
Publication status	Published - 2002
Event	International Congress on Membranes and Membrane Processes, ICOM 2002 - Toulouse, France Duration: 7 Jul 2002 → 12 Jul 2002

Keywords

2023 OA procedure

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10.1016/S0011-9164(02)00391-0

ArticleFinal published version, 674 KBLicence: Taverne

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title = "Derivation of adsorption parameters for nanofiltration membranes using a 1-pK Basic Stern model",

abstract = "The ion retention and flux of nanofiltration (NF) membranes are to a large extent determined by the membrane surface charge. This surface charge is in turn strongly influenced by adsorption of ions from the solution onto the membrane material. A 1-pK adsorption model with a Basic Stern electrostatic double layer model is used to describe ion adsorption, and the sensitivity of this model for various parameters is discussed. From a non-linear regression analysis of literature data [1,2] regarding the surface charge and the zeta-potential, adsorption parameters for the 1 pK model are obtained for sodium chloride on γ-alumina. The 1-pK Basic Stern model could predict the surface charge well, except for the highest concentration of 1000 mol/m3. Reasonable agreement is found between the measured zeta-potentials and the model predictions.",

keywords = "2023 OA procedure",

author = "{de Lint}, {W.B. Samuel} and Benes, {Nieck E.} and Higler, {Arnoud P.} and Henk Verweij",

year = "2002",

doi = "10.1016/S0011-9164(02)00391-0",

language = "English",

volume = "145",

pages = "87--95",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier B.V.",

number = "1-3",

note = "International Congress on Membranes and Membrane Processes, ICOM 2002, ICOM ; Conference date: 07-07-2002 Through 12-07-2002",

}

TY - JOUR

T1 - Derivation of adsorption parameters for nanofiltration membranes using a 1-pK Basic Stern model

AU - de Lint, W.B. Samuel

AU - Benes, Nieck E.

AU - Higler, Arnoud P.

AU - Verweij, Henk

PY - 2002

Y1 - 2002

N2 - The ion retention and flux of nanofiltration (NF) membranes are to a large extent determined by the membrane surface charge. This surface charge is in turn strongly influenced by adsorption of ions from the solution onto the membrane material. A 1-pK adsorption model with a Basic Stern electrostatic double layer model is used to describe ion adsorption, and the sensitivity of this model for various parameters is discussed. From a non-linear regression analysis of literature data [1,2] regarding the surface charge and the zeta-potential, adsorption parameters for the 1 pK model are obtained for sodium chloride on γ-alumina. The 1-pK Basic Stern model could predict the surface charge well, except for the highest concentration of 1000 mol/m3. Reasonable agreement is found between the measured zeta-potentials and the model predictions.

AB - The ion retention and flux of nanofiltration (NF) membranes are to a large extent determined by the membrane surface charge. This surface charge is in turn strongly influenced by adsorption of ions from the solution onto the membrane material. A 1-pK adsorption model with a Basic Stern electrostatic double layer model is used to describe ion adsorption, and the sensitivity of this model for various parameters is discussed. From a non-linear regression analysis of literature data [1,2] regarding the surface charge and the zeta-potential, adsorption parameters for the 1 pK model are obtained for sodium chloride on γ-alumina. The 1-pK Basic Stern model could predict the surface charge well, except for the highest concentration of 1000 mol/m3. Reasonable agreement is found between the measured zeta-potentials and the model predictions.

KW - 2023 OA procedure

U2 - 10.1016/S0011-9164(02)00391-0

DO - 10.1016/S0011-9164(02)00391-0

M3 - Conference article

SN - 0011-9164

VL - 145

SP - 87

EP - 95

JO - Desalination

JF - Desalination

IS - 1-3

T2 - International Congress on Membranes and Membrane Processes, ICOM 2002

Y2 - 7 July 2002 through 12 July 2002

ER -

Derivation of adsorption parameters for nanofiltration membranes using a 1-pK Basic Stern model

Abstract

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