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UV activated sodium percarbonate to accelerate degradation of atrazine: Mechanism, intermediates, and evaluation on residual toxicity by metabolomics by Xiaolong Yu; Xu Jin; Nan Wang; Qian Zheng; Yuanyuan Yu; Jin Tang; Luyu Wang; Rujin Zhou; Jianteng Sun; Lizhong Zhu is a Environmental Science article available to read on EtoBox.
What is UV activated sodium percarbonate to accelerate degradation of atrazine: Mechanism, intermediates, and evaluation on residual toxicity by metabolomics about?
Efficient and safe removal of widely used herbicides such as atrazine has become a recent hotspot. Herein, UV driven sodium percarbonate system (UV/SPC) was established to have many advantages in remediation of atrazine contamination. The mechanism and environmental risk of intermediates were explored, which provided information for the feasibility of UV/SPC. The degradation efficiency of atrazine was significantly enhanced as the increasing dosage of SPC. Quenching assay identified that •OH and CO 3 •-were committed to degrading atrazine. Humic acid and HPO 4 2-remarkably inhibited atrazine degradation. Several intermediates were generated through the dealkylation, dechlorination-hydroxylation, alkylic-hydroxylation, alkyl oxidation and olefination reactions. Toxicity prediction proved that acute toxicity and bioaccumulation of intermediates were mitigated comparing with atrazine. Based on metabolomics results, the alteration of key metabolites such as citrate, L-kynurenine, malic acid, putrescine, glutamine, spermine, ethanolamine and phytosphingosine in various metabolic pathways of E.coli verified that the toxicity of atrazine was weakened after UV/SPC treatment. The applicatio
Who reads UV activated sodium percarbonate to accelerate degradation of atrazine: Mechanism, intermediates, and evaluation on residual toxicity by metabolomics?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Xiaolong Yu; Xu Jin; Nan Wang; Qian Zheng; Yuanyuan Yu; Jin Tang; Luyu Wang; Rujin Zhou; Jianteng Sun; Lizhong Zhu
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Environmental Science (Physical Sciences)