Advanced oxidation of bisphenols by peracetic acid activated by light and ultrasound

Dariusz Kiejza; Joanna Karpińska; Alicja Piotrowska-Niczyporuk; Urszula Kotowska

doi:10.1016/j.envpol.2023.122029

Advanced oxidation of bisphenols by peracetic acid activated by light and ultrasound

Environ Pollut. 2023 Sep 15:333:122029. doi: 10.1016/j.envpol.2023.122029. Epub 2023 Jun 17.

Authors

Dariusz Kiejza¹, Joanna Karpińska², Alicja Piotrowska-Niczyporuk³, Urszula Kotowska²

Affiliations

¹ Doctoral School of Exact and Natural Sciences, University of Bialystok, Ciolkowskiego 1K Street, 15-245, Bialystok, Poland. Electronic address: d.kiejza@uwb.edu.pl.
² Department of Analytical and Inorganic Chemistry, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K Street, 15-245, Bialystok, Poland.
³ Department of Plant Biology and Ecology, Faculty of Biology, University of Bialystok, Ciolkowskiego 1J Street, 15-245, Bialystok, Poland.

PMID: 37336351
DOI: 10.1016/j.envpol.2023.122029

Abstract

Light and ultrasound have been tested as physical factors activating peracetic acid (PAA) to oxidize bisphenols (BPs). Based on the chemometric approach of the Taguchi method, UV irradiation with a wavelength of 254 nm was selected as the optimal type of PAA activator. The effectiveness of the UV/PAA system was also compared with other oxidation methods. Under optimal conditions ([BPs]₀ = 1 mg/L, 1 mM PAA, pH 9, UV 254 nm) the tested bisphenols are completely degraded within 15-60 min. The influence of the matrix on the process of organic micropollutants removal in the UV/PAA system was also investigated. Toxicity assessment leads to the conclusion that the reaction mixture shows limited toxicity towards living organisms.

Keywords: Bisphenols; Peracetic acid; UV light; Ultrasound; Wastewater.

MeSH terms

Hydrogen Peroxide
Oxidation-Reduction
Peracetic Acid*
Ultraviolet Rays
Wastewater
Water Pollutants, Chemical*

Substances

Peracetic Acid
Wastewater
bisphenol A
Hydrogen Peroxide
Water Pollutants, Chemical