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Comparative investigation of acetaminophen degradation in aqueous solution by UV/Chlorine and UV/H2O2 processes: Kinetics and toxicity assessment, process feasibility and products identification
Abstract
The degradation of acetaminophen (ACM) was comparatively studied by UV/chlorine and UV/H 2 O 2 systems. An apparent reduction in the removal rate was observed above the optimum pH levels of 7.0 and 3.0 in UV/chlorine and UV/H 2 O 2 processes, respectively. The relative contribution of each oxidizing agent in ACM removal using the two advanced oxidation processes (AOPs) was evaluated. Even though hydroxyl radicals, with the contribution percentage of 90.1%, were determined as the primary oxidizing species in ACM removal using the UV/H 2 O 2 process, reactive chlorine species (RCS), with 43.8% of contribution percentage, were also found to play a pivotal role in ACM removal using the UV/chlorine process. For instance, dichlorine radical (Cl 2•-) showed an acceptable contribution percentage of 32.2% in the degradation of ACM by the UV/chlorine process. The rate of ACM degradation significantly rose to 99.9% and 75.6%, as higher amounts of oxidants were used in the UV/chlorine and UV/H 2 O 2 processes, respectively, within 25 min. The introduction of HCO 3- ions and humic acid remarkably decreased the rate of ACM degradation in both techniques used in this study. The presence of NO 3- and Cl- ions did not considerably affect the removal rate in the UV/chlorine process. The acute toxicity analysis revealed that a more pronounced reduction in the ACM solution toxicity could be achieved by the UV/H 2 O 2 process compared to the UV/chlorine process, which should be ascribed to the formation of chlorinated products in the UV/chlorine treatment. Eventually, plausible oxidation pathways were proposed for each process.
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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 [129-131].”
From Advanced Oxidation Processes for Degradation of Water Pollutants—Ambivalent Impact of Carbonate Species: A Review (2023) · cites this paper as [131]
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Research works printed but not linked: 2
- Dao, 2018, Degradation of paracetamol by an UV/chlorine advanced oxidation process: influencing factors, Factorial Design, and Intermediates Identification, 15, 2637
- Durand-Niconoff, 2012, vol. 112, 3570
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Rayaroth, M. P., Boczkaj, G., Aubry, O., Aravind, U. K., & Aravindakumar, C. T. (2023) · Water · doi:10.3390/w15081615 · Cited by 171
Metadata
- Authors
- Ghanbari, F., Yaghoot-Nezhad, A., Wacławek, S., Lin, K.-Y. A., Rodríguez-Chueca, J., & Mehdipour, F.
- Affiliations
- Abadan University of Medical Sciences (IR)
- Petroleum University of Technology (IR)
- Technical University of Liberec (CZ)
- National Chung Hsing University (TW)
- Shahid Beheshti University (IR)
- Corresponding author
- Ghanbari, Farshid
- Wacławek, Stanisław
- Lin, Kun-Yi Andrew
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2021-12
- Volume
- 285
- Pages
- 131455
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W3179697724
- Cited by
- 87
- References
- 60
- Citations by year
- 2026: 6 · 2025: 15 · 2024: 14 · 2023: 25 · 2022: 19 · 2021: 8
- FWCI
- 4.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Hispana (acceptedVersion)
- UPM Digital Archive (Technical University of Madrid) (submittedVersion)
- 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
- acetaminophen degradation, UV/chlorine process, UV/H2O2 process, advanced oxidation processes, hydroxyl radicals, reactive chlorine species, degradation kinetics, acute toxicity, chlorination by-products, humic acid inhibition, bicarbonate inhibition, oxidation pathways, pharmaceutical removal from water
- MeSH terms
- Acetaminophen, Chlorine, Feasibility Studies, Hydrogen Peroxide, Kinetics, Ultraviolet Rays, Water Pollutants, Chemical, Process Assessment, Health Care, Water Purification
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