High Performance Nanofiltration Membrane for Effective Removal of Perfluoroalkyl Substances at High Water Recovery

Environmental Science & Technology
Chanhee BooMenachem Elimelech

Abstract

We demonstrate the fabrication of a loose, negatively charged nanofiltration (NF) membrane with tailored selectivity for the removal of perfluoroalkyl substances with reduced scaling potential. A selective polyamide layer was fabricated on top of a poly(ether sulfone) support via interfacial polymerization of trimesoyl chloride and a mixture of piperazine and bipiperidine. Incorporating high molecular weight bipiperidine during the interfacial polymerization enables the formation of a loose, nanoporous selective layer structure. The fabricated NF membrane possessed a negative surface charge and had a pore diameter of ∼1.2 nm, much larger than a widely used commercial NF membrane (i.e., NF270 with pore diameter of ∼0.8 nm). We evaluated the performance of the fabricated NF membrane for the rejection of different salts (i.e., NaCl, CaCl2, and Na2SO4) and perfluorooctanoic acid (PFOA). The fabricated NF membrane exhibited a high retention of PFOA (∼90%) while allowing high passage of scale-forming cations (i.e., calcium). We further performed gypsum scaling experiments to demonstrate lower scaling potential of the fabricated loose porous NF membrane compared to NF membranes having a dense selective layer under solution conditions ...Continue Reading

References

May 10, 2002·Environmental Science & Technology·John P Giesy, Kurunthachalam Kannan
Apr 13, 2004·Environmental Science & Technology·Long D NghiemMenachem Elimelech
Dec 22, 2006·Environmental Science & Technology·Chuyang Y TangJames O Leckie
Feb 21, 2008·Environmental Science & Technology·Kai-Uwe Goss
Nov 27, 2014·Environmental Science & Technology·John W WashingtonJonathan E Naile
Jul 28, 2015·ACS Applied Materials & Interfaces·Xinglin LuMenachem Elimelech
Jun 9, 2016·Environmental Science & Technology·Tiezheng Tong, Menachem Elimelech
Mar 30, 2017·Environmental Science & Technology·Tiezheng TongMenachem Elimelech
Jun 7, 2017·Environmental Science & Technology·Christopher P Higgins, Jennifer A Field
Jan 1, 2017·Environmental Science & Technology Letters·Laurel A SchaiderGraham F Peaslee

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Citations

Jul 30, 2020·Physical Chemistry Chemical Physics : PCCP·Antonio H da S Filho, Gabriel L C de Souza
Jun 14, 2020·Nature Nanotechnology·Razi EpszteinMenachem Elimelech
Nov 27, 2020·Science Advances·Xuechen ZhouMenachem Elimelech
Jan 14, 2021·Environmental Science & Technology·Yangying ZhaoYongsheng Chen
Nov 14, 2020·Proceedings of the National Academy of Sciences of the United States of America·Cody L RittMenachem Elimelech
Apr 29, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Teresa F MastropietroDonatella Armentano
May 22, 2021·Accounts of Materials Research·Mallikarjuna N Nadagouda, Tae Lee
Aug 15, 2018·Environmental Science & Technology·Jay R WerberMenachem Elimelech
Aug 14, 2020·Environmental Science & Technology·Dahong HuangJae-Hong Kim
Jan 25, 2022·Environmental Science & Technology·Ruoyu WangShihong Lin

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