Assessment of Degradation of Sulfonylurea Herbicides in Water by Chlorine Dioxide
Само за регистроване кориснике
АуториPergal, Marija V.
Kodranov, Igor D.
Pergal, Miodrag M.
Dojčinović, Biljana P.
Petković, Branka B.
Manojlović, Dragan D.
Чланак у часопису (Објављена верзија)
МетаподациПриказ свих података о документу
The degradation of two sulfonylurea herbicides, nicosulfuron and thifensulfuron methyl in water by chlorine dioxide, was studied for the first time in this paper. In order to examine the optimal parameters for degradation of both herbicides, degradation was investigated under light or dark conditions with different amount of chlorine dioxide, different degradation periods, and at different pH values. Degradation efficiency of herbicides was monitored using high-performance liquid chromatography with photodiode array detection (HPLC-DAD). The degradation products were analyzed by gas chromatography with triple quadrupole mass detector (GC-QQQ). Three products were identified after degradation of nicosulfuron and two products after degradation of thifensulfuron methyl. Total organic analysis (TOC) gave insight into some differences in degradation mechanisms and degrees of mineralization after degradation of the herbicides using chlorine dioxide. A simple mechanism of herbicide degradatio...n was proposed. Acute toxicity tests were performed on the products produced after degradation with chlorine dioxide, and the results showed that the degradation products were less toxic than the parent compounds. The findings of the present study are very useful for the treatment of wastewaters contaminated with herbicides.
Кључне речи:Sulfonylurea herbicides / Chlorine dioxide / Total organic carbon / Toxicity test / Gas chromatography with triple quad mass detector
Извор:Water Air and Soil Pollution, 2018, 229, 9
- Springer International Publishing Ag, Cham
- Примена унапређених оксидационих процеса и наноструктурисаних оксидних материјала за уклањање загађивача из животне средине, развој и оптимизација инструменталних техника за праћење ефикасности (RS-172030)
- Strengthening of the MagBioVin Research and Innovation Team for Development of Novel Approaches for Tumour Therapy based on Nanostructured Materials (EU-621375)
- Supplementary data: http://cherry.chem.bg.ac.rs/handle/123456789/3173