spectrumgaq.blogg.se - Modern water treatment by electrochemical oxidation

Electrooxidation of per- and polyfluoroalkyl substances in chloride-containing water on surface-fluorinated Ti4O7 anodes: Mitigation and elimination of chlorate and perchlorate formation. Mechanisms and pathways of PFAS degradation by advanced oxidation and reduction processes: A critical review. Mohamed Gar Alalm, Daria Camilla Boffito.Frontiers of Environmental Science & Engineering 2023, 17 Recent advances in electrochemical decontamination of perfluorinated compounds from water: a review. Fuqiang Liu, Shengtao Jiang, Shijie You, Yanbiao Liu.Environmental Science & Technology 2021, 55 Near-Quantitative Defluorination of Perfluorinated and Fluorotelomer Carboxylates and Sulfonates with Integrated Oxidation and Reduction. Bentel, Yaochun Yu, Changxu Ren, Jinyu Gao, Vivek Francis Pulikkal, Mei Sun, Yujie Men, Jinyong Liu. Application of Heterojunction Ni–Sb–SnO2 Anodes for Electrochemical Water Treatment. Yi Zhang, Yang Yang, Shasha Yang, Estefanny Quispe-Cardenas, Michael R.Electrochemical Oxidation of 6:2 Polyfluoroalkyl Phosphate Diester-Simulation of Transformation Pathways and Reaction Kinetics with Hydroxyl Radicals. Jonathan Zweigle, Boris Bugsel, Markus Schmitt, Christian Zwiener.Defluorination of Omega-Hydroperfluorocarboxylates (ω-HPFCAs): Distinct Reactivities from Perfluoro and Fluorotelomeric Carboxylates. Bentel, Yaochun Yu, Yujie Men, Jinyong Liu. Electrically Controlled Anion Exchange Based on a Polypyrrole/Carbon Cloth Composite for the Removal of Perfluorooctanoic Acid.

Yuhao Tian, Jianyu Xing, Chenxi Huyan, Chengzhou Zhu, Dan Du, Wenlei Zhu, Yuehe Lin, Indranil Chowdhury.

Reactive-Transport Modeling of Electrochemical Oxidation of Perfluoroalkyl Substances in Porous Flow-through Electrodes. Environmental Science & Technology 2022, 56 Comment on “Mechanistic Understanding of Superoxide Radical-Mediated Degradation of Perfluorocarboxylic Acids”.

Jordin Metz, Hassan Javed, Jacques Mathieu, Mingce Long, Pedro J.

Degradation of Perfluorooctanoic Acid with Hydrated Electron by a Heterogeneous Catalytic System.

Guoshuai Liu, Cuijie Feng, Penghui Shao.

Journal of the American Chemical Society 2022, 144 Integrated Photocatalytic Reduction and Oxidation of Perfluorooctanoic Acid by Metal–Organic Frameworks: Key Insights into the Degradation Mechanisms.

Yinghao Wen, Ángel Rentería-Gómez, Gregory S.

Electrochemical Advanced Oxidation of Perfluorooctanoic Acid: Mechanisms and Process Optimization with Kinetic Modeling.

Zefang Chen, Xiaojun Wang, Hualiang Feng, Shaohua Chen, Junfeng Niu, Guanglan Di, David Kujawski, John C.

This article is cited by 54 publications. Developments made in material science and application of novel three-dimensional, porous electrode materials and nanostructured coatings are forging a path toward more sustainable water treatment technologies and potential chemical-free treatment of PFAS-contaminated water. The presence of PFASs in drinking water and in the environment is an urgent global public health issue.

More comprehensive and rigorous evaluation of novel electrode materials, application of scalable proof-of-concept studies, and acknowledgment of all treatment outputs (not just the positive ones) are imperative. Nevertheless, the first step toward advancing from laboratory-scale to industrial-scale applications is recognizing both the strengths and limitations of electrochemical water treatment systems. In addition, the formation of organohalogen byproducts, chlorate and perchlorate, was seldom considered. Electrooxidation experiments conducted with high initial PFAS concentration and/or in high conductivity supporting electrolytes likely overestimate process performance. PFASs are surfactant molecules, which display significant concentration-dependence on adsorption, electrosorption, and dissociation. We have identified several shortcomings of the existing studies that are largely limited to small-scale laboratory batch systems and unrealistic synthetic solutions, which makes extrapolation of the obtained data to real-world applications difficult. In this review, we discuss the state-of-the-art on electrooxidation of PFASs in water, aiming at elucidating the impact of different operational and design parameters, as well as reported mechanisms of PFAS degradation at the anode surface. Electrochemical treatment systems have the unique ability to completely mineralize poly- and perfluoroalkyl substances (PFASs) through potential-driven electron transfer reactions.