Factors Influencing Imazapyr Herbicide Removal from Wastewater Using Photocatalytic Ozonation
ACTA CHIMICA SLOVENICA, vol.65, no.2, pp.470-474, 2018 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 65 Issue: 2
- Publication Date: 2018
- Doi Number: 10.17344/acsi.2018.4297
- Journal Name: ACTA CHIMICA SLOVENICA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.470-474
- Kocaeli University Affiliated: No
Abstract
This study investigates the degradation of imazapyr herbicide from wastewater by photocatalytic ozonation using TiO2 as a semiconductor. Effects of operational parameters on imazapyr removal efficiency including TiO2 dosing, initial herbicide concentration and pH were also studied. Obtained results showed that more than 90% of removal efficiency representing the disappearance of imazapyr was maintained until 7 mu M in the presence of 200 mgL(-1) of UV100-TiO2. Otherwise, the degradation of imazapyr followed the first-order kinetics with a photocatalytic rate constant of 0.247 min(-1), and complete degradation was achieved within 20 min using photocatalytic ozonation for 5 mu M of Imazapyr at pH 7.