Journal
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
Volume 7, Issue 2, Pages 243-258Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ew00802h
Keywords
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Funding
- Spanish Research Projects [MAT2016-77290-R, PID2019-104009RB-I00, T43-20R]
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Microplastics have long been present in the marine environment, posing a high risk to the food chain due to their stability and difficulty in biodegradation. Membrane technologies, such as microfiltration, ultrafiltration, and nanofiltration, are suitable for the removal of microplastics and future research and development are needed to address this environmental issue.
The presence of microplastics in marine environment has been a pollution problem for years; however, people have only recently become aware of it, similar to the situation in the last few decades with global warming due to greenhouse gases. Microplastics are pollutants that are highly stable to complete biodegradation, and there is a high risk that they can enter the food chain (e.g. fish or agriculture products) because of the fact that secondary plastics (in principle, as small as monomers and oligomers) generated from the evolution of primary plastics (that directly spread in the environment) require more specific separation processes for their removal. In this review, firstly, we focus on the classification of microplastics and potential remediation technologies to be applied depending on their size. Secondly, membrane technologies (microfiltration, ultrafiltration and nanofiltration) are presented in the context of microplastics removal, revealing their suitability for the task and a future path of research and development to be carried out to mitigate the problem.
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