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Peracetic acid-based advanced oxidation processes for decontamination and disinfection of water: A review

Ao, Xiu-wei ; Eloranta, Jussi ; Huang, Ching-Hua ; Santoro, Domenico ; Sun, Wen-jun ; Lu, Ze-dong ; Li, Chen

Water research (Oxford), 2021-01, Vol.188, p.116479, Article 116479 [Peer Reviewed Journal]

England: Elsevier Ltd

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  • Title:
    Peracetic acid-based advanced oxidation processes for decontamination and disinfection of water: A review
  • Author: Ao, Xiu-wei ; Eloranta, Jussi ; Huang, Ching-Hua ; Santoro, Domenico ; Sun, Wen-jun ; Lu, Ze-dong ; Li, Chen
  • Subjects: Activation ; Advanced oxidation processes ; Decontamination ; Degradation ; Disinfection ; Hydrogen Peroxide ; Peracetic Acid ; Ultraviolet Rays ; Waste Water ; Water ; Water Pollutants, Chemical ; Water Purification
  • Is Part Of: Water research (Oxford), 2021-01, Vol.188, p.116479, Article 116479
  • Description: •Review covers current state-of-the-art of PAA-based AOPs.•Various methods of PAA activation as well as their activation mechanisms are summarized.•PAA-based AOPs hold great promise for applications in contaminant degradation.•UV/PAA is the most promising technology for water disinfection among PAA-based AOPs.•Existing problems, challenges and solutions for research in PAA-based AOPs are discussed. Peracetic acid (PAA) has attracted growing attention as an alternative oxidant and disinfectant in wastewater treatment due to the increased demand to reduce chlorine usage and control disinfection byproducts (DBPs). These applications have stimulated new investigations on PAA-based advanced oxidation processes (AOPs), which can enhance water disinfection and remove micropollutants. The purpose of this review is to conduct a comprehensive analysis of scientific information and experimental data reported in recent years on the applications of PAA-based AOPs for the removal of chemical and microbiological micropollutants from water and wastewater. Various methods of PAA activation, including the supply of external energy and metal/metal-free catalysts, as well as their activation mechanisms are discussed. Then, a review on the usage of PAA-based AOPs for contaminant degradation is given. The degradation mechanisms of organic compounds and the influence of the controlling parameters of PAA-based treatment systems are summarized and discussed. Concurrently, the application of PAA-based AOPs for water disinfection and the related mechanisms of microorganism inactivation are also reviewed. Since combining UV light with PAA is the most commonly investigated PAA-based AOP for simultaneous pathogen inactivation and micropollutant oxidation, we have also focused on PAA microbial inactivation kinetics, together with the effects of key experimental parameters on the process. Moreover, we have discussed the advantages and disadvantages of UV/PAA as an AOP against the well-known and established UV/H2O2. Finally, the knowledge gaps, challenges, and new opportunities for research in this field are discussed. This critical review will facilitate an in-depth understanding of the PAA-based AOPs for water and wastewater treatment and provide useful perspectives for future research and development for PAA-based technologies. [Display omitted]
  • Publisher: England: Elsevier Ltd
  • Language: English
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