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Yiqi Yan, Zongsu Wei, Xiaoguang Duan, Mingce Long, Richard Spinney, Dionysios D. Dionysiou, Ruiyang Xiao, Pedro J. J. Alvarez
Urbanization and industrialization have exerted significant adverse effects on water quality, resulting in a growing need for reliable and eco-friendly treatment technologies. Persulfate (PS)-based advanced oxidation processes (AOPs) are emerging as viable technologies to treat challenging industrial wastewaters or remediate groundwater impacted by hazardous wastes. While the generated reactive species can degrade a variety of priority organic contaminants through radical and nonradical pathways, there is a lack of systematic and in-depth comparison of these pathways for practical implementation in different treatment scenarios. Our comparative analysis of reaction rate constants for radical vs. nonradical species indicates that radical-based AOPs may achieve high removal efficiency of organic contaminants with relatively short contact time. Nonradical AOPs feature advantages with minimal water matrix interference for complex wastewater treatments. Nonradical species ( e.g., singlet oxygen, high-valent metals, and surface activated PS) preferentially react with contaminants bearing electron-donating groups, allowing enhancement of degradation efficiency of known target contaminants. For byproduct formation, analytical limitations and computational chemistry applications are also considered. Finally, we propose a holistically estimated electrical energy per order of reaction (EE/O) parameter and show significantly higher energy requirements for the nonradical pathways. Overall, these critical comparisons help prioritize basic research on PS-based AOPs and inform the merits and limitations of system-specific applications.
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Yan, Y., Wei, Z., Duan, X., Long, M., Spinney, R., Dionysiou, D. D., Xiao, R., & Alvarez, P. J. J. (2023). Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes. Environmental Science & Technology, 57(33), 12153–12179. https://doi.org/10.1021/acs.est.3c05153
Yan, Yiqi, et al. "Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes." Environmental Science & Technology, vol. 57, no. 33, 2023, pp. 12153–12179, https://doi.org/10.1021/acs.est.3c05153.
Yan, Yiqi, Zongsu Wei, Xiaoguang Duan, Mingce Long, Richard Spinney, Dionysios D. Dionysiou, Ruiyang Xiao, and Pedro J. J. Alvarez. "Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes." Environmental Science & Technology 57, no. 33 (2023): 12153–12179. https://doi.org/10.1021/acs.est.3c05153.
Yan Y., Wei Z., Duan X. [и др.] Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes // Environmental Science & Technology. — 2023. — Vol. 57, № 33. — P. 12153–12179. — URL: https://doi.org/10.1021/acs.est.3c05153
@article{yan2023merits,
title = {{Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes}},
author = {Yiqi Yan and Zongsu Wei and Xiaoguang Duan and Mingce Long and Richard Spinney and Dionysios D. Dionysiou and Ruiyang Xiao and Pedro J. J. Alvarez},
journal = {Environmental Science \& Technology},
year = {2023},
volume = {57},
number = {33},
pages = {12153--12179},
doi = {10.1021/acs.est.3c05153},
url = {https://doi.org/10.1021/acs.est.3c05153}
}TY - JOUR AU - Yan, Yiqi AU - Wei, Zongsu AU - Duan, Xiaoguang AU - Long, Mingce AU - Spinney, Richard AU - Dionysiou, Dionysios D. AU - Xiao, Ruiyang AU - Alvarez, Pedro J. J. TI - Merits and Limitations of Radical vs. Nonradical Pathways in Persulfate-Based Advanced Oxidation Processes JO - Environmental Science & Technology VL - 57 IS - 33 SP - 12153 EP - 12179 PY - 2023 DA - 2023/08/03 DO - 10.1021/acs.est.3c05153 UR - https://doi.org/10.1021/acs.est.3c05153 ER -
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