Arsenic removal from water by photocatalisys employing granular titanium dioxide

MAIA LESCANO; CRISTINA ZALAZAR; RODOLFO BRANDI

Belo Horizonte

Congreso; VIII Encuentro sobre Aplicaciones Ambientales de Procesos Oxidativos Avanzados (EPOA VIII); 2015

Arsenic pollution is a worldwide problem being one of the most important environmentalissues in last years. A process which involves oxidation and adsorption forarsenic removal from water employing granular titanium dioxide and UV radiationis presented in this work. Theaim of this research is to evaluate and study the effectiveness of a commercial granular titanium dioxide (TiO2) in combination with UV radiationfor arsenic removal from water. Different As(III)/As(V) ratios were tested. Also,experiences were performed by varying the catalyst concentration. Thecommercial TiO2 employed has shown good photocatalytic activity. High As (III) conversions and As removal efficiencies were obtained.