Abstract
Peroxyacetic acid has been widely used in food, medical, and synthetic chemical fields for the past several decades. Recently, peroxyacetic acid has gradually become an effective alternative disinfectant in wastewater disinfection and has strong redox capacity for removing micro-pollutants from drinking water. However, commercial peroxyacetic acid solutions are primarily multi-component mixtures of peroxyacetic acid, acetic acid, hydrogen peroxide, and water. During the process of water treatment, peroxyacetic acid and hydrogen peroxide (H2O2) often coexist, which limits further investigation on the properties of peroxyacetic acid. Therefore, analytical methods need to achieve a certain level of selectivity, particularly when peroxyacetic acid and hydrogen peroxide coexist. This review summarizes the measurement and detection methods of peroxyacetic acid, comparing the principle, adaptability, and relative merits of these methods.
Highlights
Special Issue—Accounts of Aquatic Chemistry and Technology Research (Responsible Editors: Jinyong Liu, Haoran Wei & Yin Wang)
In the late 1970s, based on the understanding of the disinfection by-products (DBPs) by the chlorine-based disinfectants (Berg et al, 2019), the development of new disinfection technologies became of interest in both academia and industrial fields
The wastewater treatment team worked with the local municipal council to replace the chlorination with VigorOx® WWT II PAA disinfection technology (Peroxychem, 2017)
Summary
Special Issue—Accounts of Aquatic Chemistry and Technology Research (Responsible Editors: Jinyong Liu, Haoran Wei & Yin Wang). Peracetic acid (CH3CO3H, PAA) has a high oxidation potential (1.81 V), a relatively high reactive oxygen content (21.1%), as well as simple and safe decomposition products (oxygen, water, acetic acid) It has been the most widely used peroxy acid in the industry. The wastewater treatment team worked with the local municipal council to replace the chlorination with VigorOx® WWT II PAA disinfection technology (Peroxychem, 2017). They compared the effects of different concentrations of PAA (1.5–4.5 mg/ L) and sodium hypochlorite (1.6 mg/L) on Coxsackie virus inactivation. PAA has been widely used as a disinfectant in various industrial productions, such as the pharmaceutical industry, food industry, chemical industry, paper industry, and various water treatment systems (Crow, 1992; Kolyagin et al, 2010). The safety and stability of commercial PAA solutions can be enhanced by adding inert substances (water or inorganic salts, etc.) or stabilizers (alkyl metal polyphosphates, dipicolinic acid or quinoline derivatives) (Sennewald et al, 1969)
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