lnu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Modeling of electrokinetic processes by finite element integration of the Nernst–Planck–Poisson system of equations
Technical University of Denmark, Denmark.
Technical University of Denmark, Denmark.
Technical University of Denmark, Denmark.
New University of Lisbon, Portugal.
Show others and affiliations
2011 (English)In: Separation and Purification Technology, ISSN 1383-5866, E-ISSN 1873-3794, Vol. 79, no 2, 183-192 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Electrokinetic remediation covers a variety of useful techniques for the mobilization of ionic and non-ionic species from porous materials by means of the application of an external electric field. Due to the large number of physicochemical interactions in the process, designing an electrokinetic remediation process is not simple. Mathematical models are necessary for a better understanding of its fundamentals.In this study, a model for the electrokinetic transport phenomena based on the strongly coupled Nernst–Planck–Poisson system of equations is described. In the model presented here, the diffusion, the electromigration and the electroosmotic transport contributors are taken into account. The Poisson's equation of electrostatics is used for the calculation of the electrical potential distribution based on the global charge balance. The effect of the electrode half-reactions is included. In addition to this, water equilibrium is continuously assured and the pH value is monitored. Results from some selected test simulations of the electrokinetic desalination of a sample of porous material are presented, outlining the versatility of the model as well as showing the effect of the counterion in the removal rate of a target ion.

Place, publisher, year, edition, pages
2011. Vol. 79, no 2, 183-192 p.
Keyword [en]
Finite element method, Electrokinetics, Nernst–Planck–Poisson system, Desalination
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Physics, Electrotechnology
Identifiers
URN: urn:nbn:se:lnu:diva-48713DOI: 10.1016/j.seppur.2011.02.023OAI: oai:DiVA.org:lnu-48713DiVA: diva2:893442
Available from: 2016-01-12 Created: 2016-01-12 Last updated: 2016-02-16Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Johannesson, Björn
In the same journal
Separation and Purification Technology
Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 40 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf