Removal of color substances using photocatalytic oxidation for membrane filtration processes

Citation
Jh. Tay et al., Removal of color substances using photocatalytic oxidation for membrane filtration processes, WATER SCI T, 43(10), 2001, pp. 319-325
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
WATER SCIENCE AND TECHNOLOGY
ISSN journal
0273-1223 → ACNP
Volume
43
Issue
10
Year of publication
2001
Pages
319 - 325
Database
ISI
SICI code
0273-1223(2001)43:10<319:ROCSUP>2.0.ZU;2-G
Abstract
This study aims to remove the color substances, which normally cause diffic ulties in membrane filtration processes due to fouling using heterogeneous UV/TiO2/H2O2 reactor. It is confirmed that the technique used in this study was effective to remove TOC at 38% and color(400) at 89% within 150-min ir radiation. The experiment results showed that low concentrations of hydroge n peroxide dosage (less than 0.016 M) to UV/TiO2 system accelerated the TOC and Color(400) removal rate from 9% to 38% and 40% to 89% respectively. wh ile over-dosage made this positive effect decline. The humic acid solution treated by photo catalytic oxidation in UV/TiO2/H2O2 reactor did not change the zeta potential on membrane surface and membrane rejection rate.