Integration of Photocatalysis and Microfiltration in Removing Effluent Organic Matter from Treated Sewage Effluent

Publisher:
Taylor & Francis Group
Publication Type:
Journal Article
Citation:
Separation Science and Technology, 2010, 45 (2), pp. 155 - 162
Issue Date:
2010-01
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2009003336OK.pdf676.23 kB
Adobe PDF
An integration of photocatalysis with low-pressure submerged membrane has attracted growing interest for its synergic advantages in water and wastewater treatment. In this study, the adsorption and photocatalytic oxidation of organic compounds by UV light responsive titanium dioxide (TiO2) were investigated. First, the adsorption behavior of the TiO2 was examined by the adsorption isotherm and kinetics experiments. The photocatalytic reactivity of the catalysts was then compared at different operating conditions. The results indicate that the Freundlich model described well the adsorption capacity of both materials. The photocatalytic kinetics showed that the highest removal of effluent organic matter (EfOM) was achieved at an optimum concentration of 1.0 g/L of TiO2. In addition, it was found that the pre-photosensitization with titanium dioxide/ultra-voilet radiation (TiO2/UV) could effectively reduce membrane fouling and enhance the permeate flux of the submerged membrane reactor when it was used as a post-treatment. An increase of 10% in organic removal efficiency was achieved by the posttreatment of membrane filtration. The sustainable flux of the membrane reactor increased from 25 up to 40 L/m2.h when the pretreatment of photocatalysis was used.
Please use this identifier to cite or link to this item: