Citation: Wen Lu, Mingzhu Zhou, Rui Liu, Jiaheng Teng, Cheng Chen, Leihong Zhao, Liguo Shen, Bisheng Li, Hongjun Lin, Shaobin Wang. Peracetic acid-mediated dual-path oxidation of hazardous emerging contaminants: Mechanisms, toxicity analysis, and practical implications[J]. Chinese Chemical Letters, ;2026, 37(12): 112736. doi: 10.1016/j.cclet.2026.112736 shu

Peracetic acid-mediated dual-path oxidation of hazardous emerging contaminants: Mechanisms, toxicity analysis, and practical implications

Wen Lu ^a ,
Mingzhu Zhou ^a ,
Rui Liu ^a ,
Jiaheng Teng ^a ,
Cheng Chen ^a ,
Leihong Zhao ^b ,
Liguo Shen ^a ,
Bisheng Li ^{a, *,} ,
Hongjun Lin ^{a, *,} ,
Shaobin Wang ^{c, *,}

a.
College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
b.
College of Jewelry, Shanghai Jianqiao University, Shanghai 201306, China
c.
School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia

lbsheng@zjnu.edu.cn

hjlin@zjnu.cn

shaobin.wang@adelaide.edu.au

Received Date: 29 September 2025
Revised Date: 14 December 2025
Accepted Date: 6 April 2026
Available Online: 10 April 2026

Figures(5)

Emerging contaminants (ECs), due to their high biological activity and environmental persistence, pose a potential and long-term significant threat to the ecosystem and human health, even in trace amounts. The efficient removal of environmentally persistent and biologically active ECs by conventional wastewater treatment remains challenging. Peracetic acid-based advanced oxidation processes (PAA-AOPs) have been considered as promising technologies, which can offer high removal efficiency. However, no related review about PAA-AOPs has been reported. This review begins by examining recent developments in different strategies for activating peracetic acid (PAA) and outlines the corresponding mechanistic pathways. It then offers an in-depth discussion of how major reactive species, such as hydroxyl radicals, carbon-centered radicals, and singlet oxygen, are produced and transformed within these systems. Because real aquatic environments are chemically complex, the review also considers how operational factors and water quality parameters, including pH, oxidant concentration, catalyst dosage, and the presence of coexisting ions or organic matter, affect pollutant degradation and influence the underlying reaction mechanisms. Subsequent sections address the main technical barriers that currently limit large-scale application of PAA-based oxidation systems and propose practical solutions and future research directions to enhance their environmental performance. Altogether, the article seeks to advance understanding of PAA-AOP mechanisms and to provide useful guidance for designing more effective processes for water purification.
- Emerging contaminants,
- Advanced oxidation processes,
- Peracetic acid,
- Activation mechanism,
- Water treatment
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沈阳化工大学材料科学与工程学院沈阳 110142