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Artículo

Ceramic membrane filtration of organic compounds: effect of concentration, pH, and mixtures interactions on fouling

De Angelis, Laura; Fidalgo, María MartaIcon
Fecha de publicación: 08/2013
Editorial: Elsevier
Revista: Separation and Purification Technology
ISSN: 1383-5866
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ingeniería Oceanográfica

Resumen

A comparative assessment of iron oxide ceramic ultrafiltration membranes fouling by model organic compounds was performed. To characterize this fouling phenomenon, humic acid (HA), bovine serum albumin (BSA) and sodium alginate (SA) were used as models of humic substances, proteins and polysaccharides respectively. Clean and fouled iron oxide membranes surfaces were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The influence of concentration, foulant mixtures and pH on the fouling mechanism was investigated. Fouling was observed to depend first on foulant–membrane interactions, followed by a second step where membrane material plays a less important role. Membrane surface chemistry and solution pH were significant factors affecting irreversibility of the fouling layer. A strong dependence was observed in foulant concentration and solution pH. Foulant mixtures showed synergetic results, determined by foulant–foulant interactions.
Palabras clave: Fouling , Ceramic Membranes , Organic Matter , Ultrafiltration
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/24898
DOI: http://dx.doi.org/10.1016/j.seppur.2013.08.016
URL: http://www.sciencedirect.com/science/article/pii/S1383586613005017
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
De Angelis, Laura; Fidalgo, María Marta; Ceramic membrane filtration of organic compounds: effect of concentration, pH, and mixtures interactions on fouling; Elsevier; Separation and Purification Technology; 118; 8-2013; 762-775
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