Advanced oxidation processes for the removal of natural organic matter from raw water
This project seeks to improve the understanding of titanium dioxide mediation of natural organic matter (NOM) from raw water using complementary analytical techniques. Engineered design of a low cost magnetic photocatalyst for fast and low energy post treatment separation of the nanoparticle photocatalyst was also demonstrated herein.
Major achievements
3D-HPSEC, LC-OCND, rapid fractionation, UV-visible spectroscopy and GC-MS analysis of the transformations of NOM in AOP treatment process have been completed.
Magnetic photocatalyst with high magnetic susceptibility core and an ultrathin (5 nm) silica insulation shell has also been prepared and tested for the removal of NOM.
Various aspects of the project was presented in three conferences; two manuscripts have been accepted for publication in Chemosphere and Environmental Science and Technology, and one manuscript has been submitted to Organic Geochemistry.
Future plans and directions
The project has reached its final phase and a dissertation based on the project will be submitted in March 2009. Two journal manuscripts are in preparation for publication.
Collaborations
Dr Christopher Chow, Mr Rolando Fabris, Prof Mary Drikas - CRC for Water Quality and Treatment
Prof Gregory Korshin - Civil and Environmental Engineering, University of Washington
