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Critical review of microplastics removal from the environment

Chemosphere 2022 256 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Riaz Ahmed, Ansley Hamid, Samuel A. Krebsbach, Jianzhou He, Dengjun Wang

Summary

This review evaluates technologies for removing microplastics from the environment, including physical methods like filtration, chemical treatments, and biological approaches using microorganisms. Each method has trade-offs between effectiveness, cost, and scalability, and no single technology can solve the problem alone. The authors emphasize that reducing human exposure to microplastics requires combining better removal technologies with policies that limit plastic production and waste at the source.

Globally, microplastics pollution has become a serious environmental threat due to their multitude sources, widespread occurrence, persistence, and adverse effects to ecosystem and the human health. Addressing this multifaceted threat requires innovative technologies that can efficiently remove microplastics from the environment. In this review, we first overviewed the source, occurrence, and potential adverse impacts of microplastics to human health. We then identified promising technologies for microplastics removal, including physical, chemical, and biological approaches. A detailed analysis of the advantages and limitations of different techniques was provided. We concluded this review with the current challenges and future research priorities, which will guide us through the path addressing microplastics contamination.

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