Asset Details
Do you wish to reserve the book?
Oxidative Degradation of the Microcontaminant 2,6-Dichlorobenzoquinone by UV: Effect of Hsub.2Osub.2 Dosage on Water Quality
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Oxidative Degradation of the Microcontaminant 2,6-Dichlorobenzoquinone by UV: Effect of Hsub.2Osub.2 Dosage on Water Quality
Do you wish to request the book?
Oxidative Degradation of the Microcontaminant 2,6-Dichlorobenzoquinone by UV: Effect of Hsub.2Osub.2 Dosage on Water Quality
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Oxidative Degradation of the Microcontaminant 2,6-Dichlorobenzoquinone by UV: Effect of Hsub.2Osub.2 Dosage on Water Quality
2025
Overview
Halogenated disinfection by-products such as 2,6-dichlorobenzoquinone (DCBQ) are emerging microcontaminants of concern due to their persistence and toxicity in aquatic environments. This study evaluated the oxidative degradation of DCBQ under UV irradiation, focusing on the effect of H[sub.2]O[sub.2] dosage on removal efficiency and water quality. Batch experiments were conducted with H[sub.2]O[sub.2] concentrations ranging from 0.0 to 10.0 mM. Kinetic analysis revealed that photolysis with UV alone followed an apparent order of 1.5, while the UV/H[sub.2]O[sub.2] system showed an order of 2.5, reflecting the contribution of hydroxyl radicals and their dependence on both DCBQ and H[sub.2]O[sub.2] concentrations. Color evolution displayed a series reaction behavior: the initial formation of chromophoric by-products followed first-order kinetics, whereas their subsequent removal proceeded with zero-order kinetics, consistent with radical-driven decolorization. Optimal performance was achieved with 1.0–2.0 mM H[sub.2]O[sub.2], which promoted rapid DCBQ decay and significant reductions in aromaticity and color (100% in 2 h), whereas higher concentrations (10.0 mM) led to radical scavenging and lower efficiency. Dissolved oxygen increased during treatment, confirming oxidative pathways, while turbidity remained stable between 1 and NTU. These results demonstrate the effectiveness of UV/H[sub.2]O[sub.2] for DCBQ removal and highlight the value of kinetic modeling in optimizing advanced oxidation processes for water treatment.
Publisher
MDPI AG
Subject
