Cited by 58Advanced oxidation water treatmentWater Treatment and DisinfectionAdvanced Photocatalysis Techniques

Intensification of UV-C treatment to remove emerging contaminants by UV-C/H2O2 and UV-C/S2O82−: Susceptibility to photolysis and investigation of acute toxicity

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Starling, Maria Clara V.M., Souza, Patterson P., Le Person, Annaïg, Amorim, Camila C., Criquet, Justine·2019·Chemical Engineering Journal

Abstract

In this study, the degradation of four emerging contaminants losartan potassium (LP), furosemide (FRSM), caffeine (CAF), and carbendazim (CBZ) under UV-C, UV-C/H 2 O 2 , and UV-C/S 2 O 8 2− was investigated. A comparative evaluation of the efficiency of UV-C/H 2 O 2 and UV-C/S 2 O 8 2− in the degradation of these target CECs has not yet been reported. Moreover, target compounds were submitted to UV-C/AOPs individually in pure water and their simultaneous degradation was investigated in real surface water. Evolution of the acute toxicity of each compound during treatment was evaluated using Alivibrio fischeri. Quantum yields were determined for LP (0.011–0.016), FRSM (0.024–0.092), CAF (0.0007–0.0009), and CBZ (0.0016–0.0036) at different pH values. UV-C/H 2 O 2 and UV-C/S 2 O 8 2 achieved more than 98% removal of all compounds within 600 mJ cm −2 , and pseudo-fist-order kinetic constants ( k′ app ) for the degradation reactions were up to seven times higher in the presence of these oxidants when compared to k′ app values obtained for UV-C photolysis . k′ app measured for UV-C/H 2 O 2 were higher than those calculated for UV-C/S 2 O 8 2− except in the case of LP. Acute toxicity analysis suggested the formation of toxic intermediates during the UV-C photolysis of LP and FRSM, and the degradation of LP via UV-C/S 2 O 8 2− also enhanced acute toxicity although electric energy efficiency per order identified UV-C/S 2 O 8 2 as the most efficient process for the removal of this compound. Finally, different transformation products obtained during the degradation of caffeine under the different UV-C AOPs suggested that distinct degradation routes were involved in each treatment tested.

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Crossref · 10.1016/j.cej.2019.01.135

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  • A similar effect is reported for parathion, florfenicol, thiamphenicol, losartan potassium, furosemide, caffeine, carbendazim, anatoxin, propranolol, acetaminophen in UV-based oxidation treatments.

    “A similar effect is reported for parathion, florfenicol, thiamphenicol, losartan potassium, furosemide, caffeine, carbendazim, anatoxin, propranolol, acetaminophen in UV-based oxidation treatments [129-131].”

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Authors
Starling, M. C. V. M., Souza, P. P., Le Person, A., Amorim, C. C., & Criquet, J.
Affiliations
  • Universidade Federal de Minas Gerais (BR)
  • Federal Center for Technological Education of Minas Gerais (BR)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
Amorim, Camila C.
Venue
Chemical Engineering Journal
Publisher
Elsevier BV
Published
2019-11
Volume
376
Pages
120856
ISSN
1385-8947 (ISSN-L)
OpenAlex
W2912139753
Cited by
58
References
85
Citations by year
2026: 6 · 2025: 4 · 2024: 7 · 2023: 7 · 2022: 15 · 2021: 10 · 2020: 8 · 2019: 1
FWCI
3.08
Type
journal article
Language
en
Open access
Locations
  • Chemical Engineering Journal (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • LillOA (Université de Lille (University Of Lille)) (submittedVersion, other-oa)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Fundação de Amparo à Pesquisa do Estado de Minas Gerais
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Water Treatment and Disinfection
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
UV-C irradiation, emerging contaminants, advanced oxidation processes, losartan potassium, furosemide, caffeine, carbendazim, photolysis, acute toxicity, quantum yield, pseudo-first-order kinetics, degradation intermediates, toxic intermediates, surface water treatment, electric energy efficiency

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