Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review
The presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. The utilization of nanofiltration (NF) membranes has emerged as one of the most effective methods of heavy metal ion removal from wastewater due to their e...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/13/7/643 |
| _version_ | 1827732490968629248 |
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| author | Cristina Ileana Covaliu-Mierlă Oana Păunescu Horia Iovu |
| author_facet | Cristina Ileana Covaliu-Mierlă Oana Păunescu Horia Iovu |
| author_sort | Cristina Ileana Covaliu-Mierlă |
| collection | DOAJ |
| description | The presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. The utilization of nanofiltration (NF) membranes has emerged as one of the most effective methods of heavy metal ion removal from wastewater due to their efficient operation, adaptable design, and affordability. NF membranes created from advanced materials are becoming increasingly popular due to their ability to depollute wastewater in a variety of circumstances. Tailoring the NF membrane’s properties to efficiently remove heavy metal ions from wastewater, interfacial polymerization, and grafting techniques, along with the addition of nano-fillers, have proven to be the most effective modification methods. This paper presents a review of the modification processes and NF membrane performances for the removal of heavy metals from wastewater, as well as the application of these membranes for heavy metal ion wastewater treatment. Very high treatment efficiencies, such as 99.90%, have been achieved using membranes composed of polyvinyl amine (PVAM) and glutaraldehyde (GA) for Cr<sup>3+</sup> removal from wastewater. However, nanofiltration membranes have certain drawbacks, such as fouling of the NF membrane. Repeated cleaning of the membrane influences its lifetime. |
| first_indexed | 2024-03-11T00:50:56Z |
| format | Article |
| id | doaj.art-8086d364bd6f4fc880bb4028af88aefc |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T00:50:56Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-8086d364bd6f4fc880bb4028af88aefc2023-11-18T20:26:15ZengMDPI AGMembranes2077-03752023-07-0113764310.3390/membranes13070643Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A ReviewCristina Ileana Covaliu-Mierlă0Oana Păunescu1Horia Iovu2Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaFaculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaAdvanced Polymer Materials Group, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 132 Calea Grivitei, 010737 Bucharest, RomaniaThe presence of heavy metal ions in polluted wastewater represents a serious threat to human health, making proper disposal extremely important. The utilization of nanofiltration (NF) membranes has emerged as one of the most effective methods of heavy metal ion removal from wastewater due to their efficient operation, adaptable design, and affordability. NF membranes created from advanced materials are becoming increasingly popular due to their ability to depollute wastewater in a variety of circumstances. Tailoring the NF membrane’s properties to efficiently remove heavy metal ions from wastewater, interfacial polymerization, and grafting techniques, along with the addition of nano-fillers, have proven to be the most effective modification methods. This paper presents a review of the modification processes and NF membrane performances for the removal of heavy metals from wastewater, as well as the application of these membranes for heavy metal ion wastewater treatment. Very high treatment efficiencies, such as 99.90%, have been achieved using membranes composed of polyvinyl amine (PVAM) and glutaraldehyde (GA) for Cr<sup>3+</sup> removal from wastewater. However, nanofiltration membranes have certain drawbacks, such as fouling of the NF membrane. Repeated cleaning of the membrane influences its lifetime.https://www.mdpi.com/2077-0375/13/7/643membranesnanofiltrationheavy metalremovalwastewater |
| spellingShingle | Cristina Ileana Covaliu-Mierlă Oana Păunescu Horia Iovu Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review Membranes membranes nanofiltration heavy metal removal wastewater |
| title | Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review |
| title_full | Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review |
| title_fullStr | Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review |
| title_full_unstemmed | Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review |
| title_short | Recent Advances in Membranes Used for Nanofiltration to Remove Heavy Metals from Wastewater: A Review |
| title_sort | recent advances in membranes used for nanofiltration to remove heavy metals from wastewater a review |
| topic | membranes nanofiltration heavy metal removal wastewater |
| url | https://www.mdpi.com/2077-0375/13/7/643 |
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