New Antifouling and Antibacterial Membrane Material for Highly Selective Removal of Nitrate and Phosphate

To remove nitrate and phosphate from sewage efficiently, current membranes need improved permselectivity, antifouling, and antibacterial properties. Herein, a new hybrid membrane modified with quaternary ammonium and silanol groups was fabricated by doping siloxane quaternary ammonium loaded activat...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2020-07, Vol.59 (26), p.12114-12122
Main Authors: Liu, Sheng, Liu, Jin-Wei, Wang, Hong, Yang, Ya-Xin, Liu, Si-Tong, Hanigan, David, Zhao, Hua-Zhang
Format: Article
Language:English
Subjects:
Materials and Interfaces
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Summary:To remove nitrate and phosphate from sewage efficiently, current membranes need improved permselectivity, antifouling, and antibacterial properties. Herein, a new hybrid membrane modified with quaternary ammonium and silanol groups was fabricated by doping siloxane quaternary ammonium loaded activated carbon (SiQA) onto poly­(vinylidene fluoride) (PVDF). The hybrid membranes had surface morphology, porosity, membrane pore sizes, and water fluxes typical of ultrafiltration membranes. At a secondary sewage effluent flux of 35 LMH, the permeate nitrate and total phosphorus concentrations were
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.0c01825