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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Policy & Risk Sign in to save

Modifications of microplastics in urban environmental management systems: A review

Water Research 2022 25 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Zongyi Tan, Xinni Wu, Xinni Wu, Jianwei Fu, Xinni Wu, Xinni Wu, Yuan Liu Ruijuan Liu, Huase Ou, Zongyi Tan, Ruijuan Liu, Yuheng Chen, Huase Ou, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Yuan Liu Yuan Liu Zongyi Tan, Yuheng Chen, Ruijuan Liu, Yuheng Chen, Yuan Liu Zongyi Tan, Ruijuan Liu, Yuan Liu Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Jianwei Fu, Xinni Wu, Xinni Wu, Xinni Wu, Ruijuan Liu, Huase Ou, Xinni Wu, Xinni Wu, Zongyi Tan, Yuheng Chen, Ruijuan Liu, Yuan Liu Xinni Wu, Yuan Liu Yuheng Chen, Yuan Liu Zongyi Tan, Ruijuan Liu, Ruijuan Liu, Yuheng Chen, Yuheng Chen, Yuheng Chen, Jianwei Fu, Jianwei Fu, Jianwei Fu, Xinni Wu, Yuan Liu Yuan Liu Ruijuan Liu, Huase Ou, Huase Ou, Huase Ou, Yuan Liu Xinni Wu, Jianwei Fu, Jianwei Fu, Jianwei Fu, Jianwei Fu, Jianwei Fu, Xinni Wu, Huase Ou, Ruijuan Liu, Yuheng Chen, Yuheng Chen, Yuheng Chen, Ruijuan Liu, Yuheng Chen, Huase Ou, Huase Ou, Jianwei Fu, Xinni Wu, Huase Ou, Xinni Wu, Xinni Wu, Huase Ou, Huase Ou, Huase Ou, Huase Ou, Huase Ou, Huase Ou, Ruijuan Liu, Jianwei Fu, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Huase Ou, Yuheng Chen, Ruijuan Liu, Huase Ou, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Yuan Liu

Summary

This review summarizes how microplastics are physically and chemically modified as they pass through urban management systems such as wastewater treatment plants and composting facilities, with these modifications altering their surface chemistry, hydrophilicity, and capacity to adsorb and transport other pollutants.

Study Type Environmental

Microplastics (MPs) are a worldwide environmental pollution issue. Besides the natural environmental stresses, various treatments in urban environmental management systems induce modifications on MPs, further affecting their environmental behavior. Investigating these modifications and inherent mechanisms is crucial for assessing the environmental impact and risk of MPs. In this review, up-to-date knowledge regarding the modifications of MPs in urban environmental management systems was summarized. Variations of morphology, chemical composition, hydrophilicity and specific surface area of MPs were generalized. The aging and degradation of MPs during drinking water treatment, wastewater treatment, sewage sludge treatment and solid waste treatment were investigated. A high abundance of MPs occurred in sewage sludge and aging solid waste, while digestion and composting contributed to significant decomposition and reduction of MPs. These treatments have become converters for MPs before entering the environment. Several novel technologies for MPs removal were listed; However, no appropriate methods can be put into actual application by now, except the membrane separation. The corresponding effects of degradation on the behaviors of MPs, including adsorption, sinking and contaminant leakage, were discussed. Finally, three priorities for research were proposed. This critical review provides viewpoints and references for risk evaluation of MPs after treatments in urban environmental management systems.

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