Toxicity reduction of persistent pollutants through the photo-fenton process and radiation/H2O2 using different sources of radiation and neutral pH
Copyright © 2021 Elsevier Ltd. All rights reserved..
The presence of toxic compounds in aquatic bodies is of great concern, and the Fenton, photo-Fenton and radiation/H2O2 processes can be applied in the remediation of these compounds due to their efficiency and advantages. However, these processes need to be investigated to make them more viable and environmentally friendly. Thus, the reduction of toxicity was evaluated, through ecotoxicological tests with Artemia salina and Lactuca sativa, of the compounds 2,4-D, diazepam, nicotine and paracetamol (acetaminophen) by the Fenton, photo-Fenton and radiation/H2O2 process with UVC, UVA and natural solar radiation at neutral pH with low concentrations of Fe2+ and H2O2. The UVC/H2O2 process was efficient in the degradation of nicotine (74%), the photo-Fenton process was more efficient in the degradation of 2,4-D (82%), diazepam (27%) and paracetamol (85%) using solar radiation, UVA and UVC respectively. The toxicity and total organic carbon (TOC) tests showed a reduction in the toxicity of the compounds after treatment, except for diazepam, which was more resistant to the process, leading to a higher mortality of Artemia salinas (92%) and less relative seed germination of Lactuca sativa (40%).
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:289 |
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| Enthalten in: |
Journal of environmental management - 289(2021) vom: 01. Juli, Seite 112500 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Nippes, Ramiro Picoli [VerfasserIn] |
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| Links: |
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| Themen: |
BBX060AN9V |
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| Anmerkungen: |
Date Completed 04.05.2021 Date Revised 04.05.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jenvman.2021.112500 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM323687695 |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Ltd. All rights reserved. | ||
| 520 | |a The presence of toxic compounds in aquatic bodies is of great concern, and the Fenton, photo-Fenton and radiation/H2O2 processes can be applied in the remediation of these compounds due to their efficiency and advantages. However, these processes need to be investigated to make them more viable and environmentally friendly. Thus, the reduction of toxicity was evaluated, through ecotoxicological tests with Artemia salina and Lactuca sativa, of the compounds 2,4-D, diazepam, nicotine and paracetamol (acetaminophen) by the Fenton, photo-Fenton and radiation/H2O2 process with UVC, UVA and natural solar radiation at neutral pH with low concentrations of Fe2+ and H2O2. The UVC/H2O2 process was efficient in the degradation of nicotine (74%), the photo-Fenton process was more efficient in the degradation of 2,4-D (82%), diazepam (27%) and paracetamol (85%) using solar radiation, UVA and UVC respectively. The toxicity and total organic carbon (TOC) tests showed a reduction in the toxicity of the compounds after treatment, except for diazepam, which was more resistant to the process, leading to a higher mortality of Artemia salinas (92%) and less relative seed germination of Lactuca sativa (40%) | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Emerging pollutant | |
| 650 | 4 | |a Neutral pH | |
| 650 | 4 | |a Photo-fenton | |
| 650 | 4 | |a Radiation/H(2)O(2) | |
| 650 | 4 | |a Toxicity assessment | |
| 650 | 4 | |a Wastewater treatment | |
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| 650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
| 650 | 7 | |a Hydrogen Peroxide |2 NLM | |
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| 700 | 1 | |a Neves Olsen Scaliante, Mara Heloísa |e verfasserin |4 aut | |
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