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Advanced oxidation processes for the removal of mono and polycyclic aromatic hydrocarbons – A review
Abstract
Aromatic hydrocarbons (AHs) are toxic environmental contaminants presented in most of the environmental matrices. Advanced oxidation processes (AOPs) for the removal of AHs in the account of complete mineralization from various environmental matrices have been reviewed in this paper. An in-depth discussion on various AOPs for mono (BTEX) and polyaromatic hydrocarbons (PAHs) and their derivatives is presented. Most of the AOPs were effective in the removal of AHs from the aquatic environment. A comparative study on the degradation of various AHs revealed that the oxidation of the AHs is strongly dependent on the number of aromatic rings and the functional groups attached to the ring. The formation of halogenated and nitrated derivatives of AHs in the real contaminated water containing chloride, nitrite, and nitrate ions seems to be a challenge in using the AOPs in real systems. The phenolic compounds, quinone, alcohols, and aliphatic acids are the important byproducts formed during the oxidation of AHs, initiated by the attack of reactive oxygen species (ROS) on their electron-rich center. In conclusion, AOPs are the adaptable method for the removal of AHs from different environmental matrices. The persulfate-based AOPs were applied in the soil phase removal as an in situ chemical oxidation of AHs. Moreover, the combination of AOPs will be a conclusive solution to avoid or minimize unexpected or other toxic intermediate products and to obtain rapid oxidation of AHs.
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Authors (3)
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Manoj P Rayaroth
- GREMI, UMR 7344, Université d'Orléans, CNRS, 45067 Orléans, France
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Full text
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2022.159043
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
SCIENCE OF THE TOTAL ENVIRONMENT
no. 857,
ISSN: 0048-9697 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Rayaroth M. P., Marchel M., Boczkaj G.: Advanced oxidation processes for the removal of mono and polycyclic aromatic hydrocarbons – A review// SCIENCE OF THE TOTAL ENVIRONMENT -Vol. 857, (2023), s.159043-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2022.159043
- Sources of funding:
-
- -
- Verified by:
- Gdańsk University of Technology
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