Whey separation using TiO2-modified ultrafiltration membrane

Autor:	Cecilia Hodúr, Zs. László, Z. C. Kiss, Sz. Kertész, Gábor Keszthelyi-Szabó
Rok vydání:	2014
Předmět:	Membrane Chromatography Fouling Chemistry law Microfiltration Membrane fouling Synthetic membrane Ultrafiltration Regenerated cellulose Filtration Food Science law.invention
Zdroj:	Acta Alimentaria. 43:78-84
ISSN:	1588-2535 0139-3006
DOI:	10.1556/aalim.43.2014.suppl.12
Popis:	Nowadays, the membrane filtration technique is a commonly used method for the separation of whey. The most significant limitation of membrane applications is fouling, which causes flux decline. During this work, regenerated cellulose membranes covered by TiO2-nanoparticles were investigated and applied to the separation of whey solution. Experiments were carried out in a dead-end ultrafiltration cell, and the changes in filtration parameters and the photocatalytic effects of the UV irradiated TiO2 modified membrane surface on the membrane fouling were examined. Our results showed that the water flux decreased with increasing TiO2 layer thickness, but the retention of turbidity and of COD increased. After separation, the membrane surface was cleaned by UV irradiation by means of photocatalytic oxidation. It was found that the original flux was recoverable, while the retention of the membrane decreased after cleaning.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28f097a087e251563319dcca8934423f https://doi.org/10.1556/aalim.43.2014.suppl.12 Zobrazit plný text záznamu