Oxidation of contaminants of emerging concern by combination of peracetic acid with iron ions and various types of light radiation - Optimization, kinetics, removal efficiency and mechanism investigation

被引：8

作者：

Kotowska, Urszula ^{[1
]}

Karpinska, Joanna ^{[1
]}

Kiejza, Dariusz ^{[2
]}

Ratkiewicz, Artur ^{[3
]}

Piekutin, Janina ^{[4
]}

Makarova, Katerina ^{[5
]}

Olchowik-Grabarek, Ewa ^{[6
]}

机构：

[1] Univ Bialystok, Fac Chem, Dept Analyt & Inorgan Chem, Lab Environm Chem, Ciolkowskiego 1K, PL-15245 Bialystok, Poland

[2] Univ Bialystok, Doctoral Sch Exact & Nat Sci, Ciolkowskiego 1K, PL-15245 Bialystok, Poland

[3] Univ Bialystok, Fac Chem, Dept Phys Chem, Div Struct Chem, Ciolkowskiego 1K, PL-15245 Bialystok, Poland

[4] Bialystok Tech Univ, Fac Civil Engn & Environm Sci, Dept Environm Engn Technol, Wiejska 45A, PL-15351 Bialystok, Poland

[5] Med Univ Warsaw, Fac Pharm, Chair Phys Pharm & Bioanal, Dept Phys Chem,Lab Med Div, Banacha 1, PL-02097 Warsaw, Poland

[6] Univ Bialystok, Fac Biol, Dept Microbiol & Biotechnol, Lab Mol Biophys, Ciolkowskiego 1J, PL-15245 Bialystok, Poland

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2023年 / 369卷

关键词：

Contaminants of emerging concern; Advanced oxidation Activated peracetic; acid; Central composite design; Density functional theory; Oxidation mechanisms; PERSONAL CARE PRODUCTS; URBAN WASTE-WATER; ORGANIC POLLUTANTS; AQUEOUS-SOLUTION; UV/PERACETIC ACID; DRINKING-WATER; DEGRADATION; UV; PHARMACEUTICALS; DECOMPOSITION;

D O I：

10.1016/j.molliq.2022.120859

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The aim of this work was to check the effectiveness of PAA activated by fluorescent light low intensive radiation, UV radiation (254 or 366 nm), simulated solar light and also in PAA-iron (Fe2+ or Fe3+) ions in the degradation of selected contaminants of emerging concern (CECs). The kinetics of the degradation process of benzophenone (BPH), 4-n-octylphenol (4OP), 4-n-nonylphenol (4NP), 3-(4-methylbenzylidene) camphor (MBC), endosulfan I (ESI), endosulfan II (ESII), oxybenzone (OXB), bisphenol A (BPA), diethylstilbestrol (DSB) and estrone (E1) in such systems have been studied. Using chemometric technique design of experiments (DoE) the following composition of PAA-H2O2 equilibrated mixture was selected as optimal: CPAA = 10.5 mgL-1, CH2O2 = 20 mgL-1 and pH = 6. The most effective appeared to be PAA-Fe(III) oxidizing system. High degradation efficiency, above 90 %, was observed for all tested com-pounds in the presence of Fe (III) ions as an activator. Using the EPR technique, the radical nature of the processes under study was proved. The influence of a matrix (raw and purified wastewater) on the degradation rate has been checked. Insight into the process done with Density Functional Theory (DFT) showed that center dot OH addition and H abstraction are the main mechanisms initiating analytes degradation.(c) 2022 Elsevier B.V. All rights reserved.

引用

页数：16