Numerical study of the effect of a charged membrane in the separation of electrically charged components

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Pinto, SIS (Author) FEUP; Miranda, JM (Author) FEUP; Campos, JBLM (Author) FEUP

Journal

Title: Desalination and Water Treatment

Vol. 14

Pages: 201-207

ISSN: 1944-3994

Publisher: Desalination Publications

Indexing

ISI Web of Knowledge - 3 Citations

ISI Web of Science

Scopus - 3 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-003-9A5

DOI: 10.5004/dwt.2010.1029

Abstract (EN): The efficiency of protein fractionation by ultrafiltration is reduced by concentration polarization, which indirectly reduces the apparent selectivity of the membrane. The complete understanding of this phenomenon requires the knowledge of the electrical interactions between the membrane and the solutes. These interactions are studied by numerical methods. A numerical code, based on a finite volume method, is developed to study the separation of a solution containing two charged solutes by solving the Poisson-Boltzmann, the Navier-Stokes and the Nernst-Planck equations. The code is used to study the effects of the electric charge of the membrane in the concentration fields of the solutes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7