Project Number:
WR00R005
Funding Year:
2000
Contract Period:
7/1/2000 - 6/30/2002
Funding Source:
UWS, USGS
Investigator(s):
PIs:- Marc Anderson, UW-Madison
Abstract:
Objectives:
The principal objective of this study is to develop and test inexpensive, high-performance photoactive adsorption media for the simultaneous removal of arsenite, As(III), and arsenate, As(V), from groundwater without pH adjustment. This process utilizes UV-irradiated photoactive thin films composed of novel mixed oxides prepared by sol-gel processing. These materials will be employed in a unique photocatalytic process, which simultaneously removes both arsenic species without additional pH adjustment or further chemical addition.
Methods:
Aluminum oxide (Al2O3), spinel (MgAl2O4), and titanium oxide (TiO2) sols were synthesized by sol-gel technology and coated on glass beads. The adsorption efficiency of each coated material
was determined in a batch reactor.