Abstract:
This study is focused on the use of UV/PDS/Cu+2 (cupper II ion) system to successfully decolorize Methyl Orange (MO) dye in aqueous media. The effects of various parameters like initial PDS concentration, catalyst dose and pH of the media in terms of MO degradation was studied. Furthermore, in order to determine the efficiency UV/PDS/Cu+2 system the degradation of MO was also performed in different system (Deionized water, Tape water and Synthetic wastewater). Moreover, the degradation of MO followed the pseudo-first-order kinetic. Without catalyst (Cu+2) the UV and UV- PDS systems contributed1.94 % and 99.6299 % in the removal of MO with the kapp of 0.0005 and 0.1273min-1 respectively. It was observed that by the incorporation of Cu+2 ions in UVPDS system the degradation of MO decreased from 99.6299 to 97.0056 % with the kapp of 0.1158 min-1decreasing the toxicity. Additionally, the oxidative species involvement for the MO treatment, which were produced during the photolysis process in the presence of the PDS, was revealed by radical quenching tests employing various scavengers. The results revealed SO4-and OH- radicals as the dominants species involved in the MO removal. Overall it is concluded that UV/PDS/Cu+2 method has the ability to be adopted for effective dyes degradation in wastewater. These findings demonstrated the great effectiveness of UV/PDS/Cu+2 procedures in the efficient removal of MO dye under optimal operating conditions.
Page(s):
251-251
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Food and Applied Sciences (ICFAS-23) 3-5 August 23, Volume: 0, Issue: 0, Year: 2023