Effects of suspended titanium dioxide nanoparticles on cake layer formation in submerged membrane bioreactor
- Publication Type:
- Journal Article
- Bioresource Technology, 2014, 152 pp. 101 - 106
- Issue Date:
Files in This Item:
|Effects of suspended titanium dioxide nanoparticles on cake layer formation in SMBR (BITE 12626).pdf||Accepted Manuscript Version||878.4 kB|
Copyright Clearance Process
- Recently Added
- In Progress
- Open Access
This item is open access.
The embargo period expires on 31 Jan 2016
Effects of the suspended titanium dioxide nanoparticles (TiO2 NPs, 50mg/L) on the cake layer formation in a submerged MBR were systematically investigated. With nanometer sizes, TiO2 NPs were found to aggravate membrane pore blocking but postpone cake layer fouling. TiO2 NPs showed obvious effects on the structure and the distribution of the organic and the inorganic compounds in cake layer. Concentrations of fatty acids and cholesterol in the cake layer increased due to the acute response of bacteria to the toxicity of TiO2 NPs. Line-analysis and dot map of energy-dispersive X-ray were also carried out. Since TiO2 NPs inhibited the interactions between the inorganic and the organic compounds, the inorganic compounds (especially SiO2) were prevented from depositing onto the membrane surface. Thus, the postponed cake layer fouling was due to the changing features of the complexes on the membrane surface caused by TiO2 NPs. © 2013 Elsevier Ltd.
Please use this identifier to cite or link to this item: