Artículo
PVDF/PMMA membranes for lemon juice clarification: fouling analysis
Fecha de publicación:
07/2015
Editorial:
Desalination Publ
Revista:
Desalination and Water Treatment
ISSN:
1944-3994
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Microfiltration/ultrafiltration membranes with different degrees of hydrophilicity and structural characteristics from poly(vinylidene fluoride) (PVDF), polymethylmetacrylate (PMMA), and polyvinylpirrolidone (PVP) in dimethylformamide (DMF) solvent were prepared to be used in the lemon juice clarification. The effect of transmembrane pressure (Δp = 0.4–1 bar) and tangential feed velocity (v = 0.2–1 m/s) on permeate flux and juice quality at T = 20°C was examined. The membrane containing 15% of PVDF, 5% PMMA, and 5% PVP (mean pore radii rpm= 0.25 μm and porosity ε = 0.25) achieved the best performance at Δp = 1 bar and v = 1 m/s, with a final permeate flux at quasi-steady state of 32.5 (L/hm2). The clarified lemon juice presented physical, chemical, and nutritional characteristics comparable to the fresh lemon juice, and 100% of total solid rejection. Membrane fouling was evaluated by applying different fouling models. Results indicated that a good fitting correlation between the experimental data and both complete blocking and cake models was achieved.
Palabras clave:
BLEND MEMBRANES
,
CLARIFICATION
,
FOULING
,
LEMON JUICE
Archivos asociados
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Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(INFAP)
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"
Citación
Firman, Leticia Raquel; Pagliero, Cecilia Liliana; Ochoa, Nelio Ariel; Marchese, Jose; PVDF/PMMA membranes for lemon juice clarification: fouling analysis; Desalination Publ; Desalination and Water Treatment; 55; 5; 7-2015; 1167-1176
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