Tire-based microplastics: Composition, detection, and impacts of advanced oxidation processes in drinking water treatment
Abstract
Microplastic pollution, particularly that from tire, presents critical environmental and public health concerns. They contribute 60 % of the total microplastic pollution. Tire-based microplastics, which contain synthetic polymers and toxic chemical additives, are significant contributors to microplastic pollution in aquatic systems. They release various hazardous substances, including heavy metals, polycyclic aromatic hydrocarbons, and other persistent pollutants, which adversely affect ecosystems and pose risks to drinking water quality. Advanced oxidation processes (AOP) such as ultraviolet based treatment, ozonation and sulfate radical based processes show potential for mitigating these microplastics by fragmenting them and degrading the leached chemicals. Radicals generated during AOP (such as sulfate radicals (SO₄•-), peroxide radicals (HO₂•) and hydroxyl radicals (•OH), have also been successful in removing the transformation products associated with tire microplastics. This combined action of AOP has potential in mitigating the primary tire microplastics and the leached chemicals from it. AOP studies reported from the other microplastic researches (PP, PE, PVC etc.) shows promising results in mitigating them from drinking water sources. TMP appears to behave similarly to other microplastic polymers in terms of fragmentation. However, research is still lacking in quantifying this process due to the presence of complex chemicals additives in it. Additionally, studies…
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