INVESTIGADORES
OCHOA Nelio Ariel
artículos
Título:
Development of charged ion exchange resin-polymer ultrafiltration membranes to reduce organic fouling
Autor/es:
N. A. OCHOA; M. MASUELLI; J. MARCHESE
Revista:
JOURNAL OF MEMBRANE SCIENCE
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2006 vol. 278 p. 457 - 463
ISSN:
0376-7388
Resumen:
Thiswork deals with the performance of polymeric membranes charged with an ion exchange resin on the ultrafiltration (UF) of an oily suspension.
The membranes were prepared by the phase inversion process from polysulfone (PSf) solutions and different percentages of resin. The structural
and functional study of membranes was carried out by SEM, dextran rejection, streaming potential (SP), oil content and chemical oxygen demand
(COD). The structural study showed that there is an important change of the porous membrane substructures leading to a higher densification when
the resin content increases. The results showed that the membrane propensity fouling decreased with increasing resin concentration (120 wt.%
resin). The best performanceless membrane fouling and better permeate qualitywas obtained with the membrane prepared with 20 wt.%
resin.