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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

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

Revista

Título: Desalination and Water Treatment

Vol. 14

Páginas: 201-207

ISSN: 1944-3994

Editora: Desalination Publications

Indexação

ISI Web of Knowledge - 3 Citações

ISI Web of Science

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7