![Sample our Earth Sciences journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5930/TOC-Subject-Sample-2021-Earth-Sciences.jpg"})
Abstract
The oxidation of the herbicide Fenuron in aqueous solutions by chlorine dioxide has been studied in a discontinuous reactor. The effect of the operating variables on the degradation process has been established: while temperature and initial concentration ratio M=[C1O2Jo/[Fenuronjo have a positive influence, the pH seems to have no influence. Also, the effects of ultra‐violet irradiation, u.v.‐oxygen, ozone and u.v.‐ozone, on the herbicide destruction were investigated.
A stoichiometric ratio of 2 moles of chlorine dioxide consumed per mol of Fenuron reacted is deduced, and a reaction mechanism that justifies this stoichiometry is proposed. Finally, a kinetic study is performed: the experimental results support a second order overall kinetics, and the rate constants are determined, being well correlated by the Arrhenius expression:
Notes
Author to whom correspondence should be addressed.