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Identification and removal of micro- and nano-plastics: Efficient and cost-effective methods

Chemical Engineering Journal 2021 107 citations

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This review covers current methods for detecting and removing micro- and nanoplastics from the environment, including techniques like FTIR spectroscopy, Raman spectroscopy, and mass spectrometry for identification. Researchers also evaluated treatment technologies, including membrane filtration systems, for removing plastic particles from water sources. The study highlights the need for efficient, cost-effective solutions as plastic pollution continues to spread through water, soil, and living organisms.

Microplastics (MPs) and nanoplastics (NPs) have gained much attention in recent years because of their ubiquitous presence, which is the widely acknowledged threat to the environment. MPs can be <5 mm size, while NPs are <100 nm, and both can be detected in various forms and shapes in the environment to alleviate their harmful effects on aquatic species, soil organisms, birds, and humans. In efforts to address these issues, the present review discusses about sampling methods for water, sediments, and biota along with their merits and demerits. Various identification techniques such as FTIR, Raman, ToF-SIMS, MALDI TOF MS, and ICP-MS are critically discussed. The detrimental effects caused by MPs and NPs are discussed critically along with the efficient and cost-effective treatment processes including membrane technologies in order to remove plastics particles from various sources to mitigate their environmental pollution and risk assessment.

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