The Use of Polymer Inclusion Membranes for the Removal of Metal Ions from Aqueous Solutions-The Latest Achievements and Potential Industrial Applications: A Review

The growing demand for environmentally friendly and economical methods of removing toxic metal ions from polluted waters and for the recovery of valuable noble metal ions from various types of waste, which are often treated as their secondary source, has resulted in increased interest in techniques...

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Published inMembranes (Basel) Vol. 12; no. 11; p. 1135
Main Author Kaczorowska, Małgorzata A
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 11.11.2022
MDPI
Subjects
Aqueous solutions
carrier
Cellulose
Composition
Drinking water
Efficiency
Equilibrium
Heavy metals
Industrial applications
Industrial equipment
Ions
Membrane composition
Membrane processes
Membranes
Metal ions
Noble metals
Phthalates
plasticizer
Pollutant removal
polymer
polymer inclusion membrane
Polymer industry
Polymers
Polyvinyl chloride
Review
Selectivity
Solvents
Wastewater treatment
Wood composites
polymer
carrier
metal ions
plasticizer
polymer inclusion membrane
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Summary:The growing demand for environmentally friendly and economical methods of removing toxic metal ions from polluted waters and for the recovery of valuable noble metal ions from various types of waste, which are often treated as their secondary source, has resulted in increased interest in techniques based on the utilization of polymer inclusion membranes (PIMs). PIMs are characterized by many advantages (e.g., the possibility of simultaneous extraction and back extraction, excellent stability and high reusability), and can be adapted to the properties of the removed target analyte by appropriate selection of carriers, polymers and plasticizers used for their formulation. However, the selectivity and efficiency of the membrane process depends on many factors (e.g., membrane composition, nature of removed metal ions, composition of aqueous feed solution, etc.), and new membranes are systematically designed to improve these parameters. Numerous studies aimed at improving PIM technology may contribute to the wider use of these methods in the future on an industrial scale, e.g., in wastewater treatment. This review describes the latest achievements related to the removal of various metal ions by PIMs over the past 3 years, with particular emphasis on solutions with potential industrial application.
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ISSN:2077-0375
2077-0375
DOI:10.3390/membranes12111135