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Sulfate radical-based advanced oxidation process effects on tire wear particles aging and ecotoxicity
Congwei Luo1, Ruidi Xu2, Daoji Wu1
1School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, PR China; Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan 250101, PR China.
The Science of the Total Environment
|October 1, 2023
Summary
Sulfate radical-based advanced oxidation processes (SAOPs) alter tire wear particles (TWPs), increasing their capacity to adsorb and release atrazine. Oxidized TWPs and released atrazine negatively impact aquatic life, highlighting SAOPs
Area of Science:
- Environmental Chemistry
- Environmental Science
- Ecotoxicology
Background:
- Tire wear particles (TWPs) are significant aquatic pollutants.
- Sulfate radical-based advanced oxidation processes (SAOPs) are explored for pollutant degradation.
Purpose of the Study:
- Investigate SAOPs' impact on TWP properties.
- Assess ecotoxicological effects of SAOP-treated TWPs and adsorbed pollutants.
Main Methods:
- Heat-activated persulfate (HPT) and ultraviolet-activated persulfate treatments (UPT) were used.
- Physicochemical properties, atrazine adsorption, and ecotoxicity were evaluated.
Main Results:
- SAOPs altered TWP surface area and functional groups.
- TWP atrazine adsorption capacity increased post-treatment.
- Released atrazine and oxidation byproducts exhibited aquatic toxicity.
Conclusions:
- SAOPs modify TWPs, potentially increasing environmental risk.
- Toxicity is linked to released atrazine and oxidation byproducts.
- Further research is needed on SAOPs' environmental implications for TWPs.
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