Journal
WATER RESEARCH
Volume 221, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2022.118820
Keywords
Microplastics; Nanoplastics; Effective removal; Separation; Degradation; Urban waters
Funding
- Australian Research Council (ARC) Discovery Project [DP220101139]
- University of Technology Sydney
- Australian Research Council (ARC) [DE220100530]
- Australian Research Council [DE220100530] Funding Source: Australian Research Council
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This review comprehensively discusses recent developments in the separation and degradation of micro/nanoplastics in urban waters. Efficient separation techniques and various degradation methods are summarized, along with the factors influencing their efficiency. The current challenges and future prospects in separating, degrading, and further upgrading micro/nanoplastics in urban waters are outlined.
The omnipresent micro/nanoplastics (MPs/NPs) in urban waters arouse great public concern. To build a MP/NP-free urban water system, enormous efforts have been made to meet this goal via separating and degrading MPs/ NPs in urban waters. Herein, we comprehensively review the recent developments in the separation and degradation of MPs/NPs in urban waters. Efficient MP/NP separation techniques, such as adsorption, coagula-tion/flocculation, flotation, filtration, and magnetic separation are first summarized. The influence of functional materials/reagents, properties of MPs/NPs, and aquatic chemistry on the separation efficiency is analyzed. Then, MP/NP degradation methods, including electrochemical degradation, advanced oxidation processes (AOPs), photodegradation, photocatalytic degradation, and biological degradation are detailed. Also, the effects of critical functional materials/organisms and operational parameters on degradation performance are discussed. At last, the current challenges and prospects in the separation, degradation, and further upcycling of MPs/NPs in urban waters are outlined. This review will potentially guide the development of next-generation technologies for MP/NP pollution control in urban waters.
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