Nanofiltration of uncharged solutes: Simultaneous effect of the polarization and membrane layers on separation

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2 Citations (Scopus)

Abstract

The effect of the concentration boundary layer on the pressure-driven membrane separation like nanofiltration or ultrafiltration is well-known and extensively discussed in the literature. In most of these studies, the effect of the boundary layer and that of the membrane layer on the separation efficiency are discussed separately. This paper presents a general model to describe the convective and diffusive mass transport taking into account the simultaneous effect of both the concentration boundary layer and the membrane layer. The advantage of this model that the mass transport can be correctly described under all mass transfer conditions, independently that the effect of the boundary layer can or not be neglected.

Original languageEnglish
Pages (from-to)70-74
Number of pages5
JournalDesalination and Water Treatment
Volume34
Issue number1-3
DOIs
Publication statusPublished - 2011

Fingerprint

Nanofiltration
solute
Boundary layers
polarization
boundary layer
Polarization
membrane
Membranes
Mass transfer
mass transport
Ultrafiltration
ultrafiltration
mass transfer
effect

Keywords

  • Concentration polarization
  • Diffusion plus convection
  • Hindered diffusion
  • Mass transefer
  • Nanofiltration
  • Polarization modulus
  • Rejection coefficient
  • Simultaneous effect of polarization and membrane layer

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering

Cite this

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abstract = "The effect of the concentration boundary layer on the pressure-driven membrane separation like nanofiltration or ultrafiltration is well-known and extensively discussed in the literature. In most of these studies, the effect of the boundary layer and that of the membrane layer on the separation efficiency are discussed separately. This paper presents a general model to describe the convective and diffusive mass transport taking into account the simultaneous effect of both the concentration boundary layer and the membrane layer. The advantage of this model that the mass transport can be correctly described under all mass transfer conditions, independently that the effect of the boundary layer can or not be neglected.",
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AB - The effect of the concentration boundary layer on the pressure-driven membrane separation like nanofiltration or ultrafiltration is well-known and extensively discussed in the literature. In most of these studies, the effect of the boundary layer and that of the membrane layer on the separation efficiency are discussed separately. This paper presents a general model to describe the convective and diffusive mass transport taking into account the simultaneous effect of both the concentration boundary layer and the membrane layer. The advantage of this model that the mass transport can be correctly described under all mass transfer conditions, independently that the effect of the boundary layer can or not be neglected.

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