Table 2.

The number of articles according to the types of methods for removing microplastics from the aqueous environment in the present study

No.	Removal Method	Removal process	Major microplastic	Year of publication	Country	Number of articles
1	Physical	Adsorption, filtration, flotation with dissolved air	Polystyrene, polyethylene, polyamide	2020–2022	India, China, Spain, Indonesia, Switzerland, Finland, Taiwan	12
2	Chemical	Coagulation, electrocatalysis, electrooxidation, nanocarbon, UV	Polystyrene, polyethylene, polypropylene, polyvinyl chloride	2018–2022	China, Australia, South Korea, Switzerland, Sweden, America, Canada	18
3	Physico-chemical	Coagulation and filtration, adsorption and thermal degradation, photocatalyst, magnetic carbon nanotubes	Polystyrene, polyethylene, polypropylene, polyvinyl chloride, polyamide	2019–2021	China, Sweden, America, Canada, Malaysia, India, Mexico, Germany, Spain, Iran	27
4	Biological	Using fungi, bacterial consortium, microalgae, biofilter, biofilm	Polystyrene, polyethylene, polypropylene, polyvinyl chloride, polyamide, polyethylene tetraphthalate	2017–2021	China, South Korea, Canada, Iceland, Denmark, Italy, Saudi Arabia	12
5	Integrated	biological membrane (MBR), Rapid sand filter (RSF), oxidation channel system and rapid sand filter (RSF), oxidation channel (OD) and membrane bioreactor (MBR), A2/O, secondary sedimentation, denitrification, UF, O3, UV	Polystyrene, polyethylene, polypropylene, polyvinyl chloride, polyamide, polyethylene tetraphthalate	2017–2021	China, South Korea, Finland, Italy, Spain, Belgium, Turkey	11