Electrostatic interactions in virus removal by ultrafiltration membranes
Ultrafiltration membranes are increasingly used in potabilization to remove viral particles. This removal is controlled by electrostatic repulsion, attachment and size exclusion. The effect of electrostatic interaction in virus filtration was investigated. Our work included characterization of bacte...
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sg-ntu-dr.10356-1394642020-05-19T09:28:39Z Electrostatic interactions in virus removal by ultrafiltration membranes Gentile, Guillermina José Cruz, Mercedes Cecilia Rajal, Verónica Beatriz Fidalgo de Cortalezzi, María Marta Singapore Centre for Environmental Life Sciences and Engineering Engineering::Environmental engineering Ultrafiltration Virus Removal Ultrafiltration membranes are increasingly used in potabilization to remove viral particles. This removal is controlled by electrostatic repulsion, attachment and size exclusion. The effect of electrostatic interaction in virus filtration was investigated. Our work included characterization of bacteriophage PP7 and polyethersulfone membrane with respect to size and surface charge; the removal of this bacteriophage at laboratory scale by ultrafiltration membrane process and the mechanism and limitations were analyzed and discussed under DLVO and XDLVO theories. A partial removal of the bacteriophage was achieved; however, enhanced separation may be achieved considering that the process is affected by the aqueous matrix. The presence of divalent cations diminished the effectiveness of the procedure as opposed to monovalent cations and species with amphoteric behavior such as bicarbonate. DLVO and XDLVO predicted the interactions studied between bacteriophage PP7 and polyethersulfone membrane. 2020-05-19T09:28:39Z 2020-05-19T09:28:39Z 2017 Journal Article Gentile, G. J., Cruz, M. C., Rajal, V. B., & Fidalgo de Cortalezzi, M. M. (2018). Electrostatic interactions in virus removal by ultrafiltration membranes. Journal of Environmental Chemical Engineering, 6(1), 1314-1321. doi:10.1016/j.jece.2017.11.041 2213-3437 https://hdl.handle.net/10356/139464 10.1016/j.jece.2017.11.041 2-s2.0-85042514405 1 6 1314 1321 en Journal of Environmental Chemical Engineering © 2017 Elsevier Ltd. All rights reserved. |
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Engineering::Environmental engineering Ultrafiltration Virus Removal Gentile, Guillermina José Cruz, Mercedes Cecilia Rajal, Verónica Beatriz Fidalgo de Cortalezzi, María Marta Electrostatic interactions in virus removal by ultrafiltration membranes |
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Ultrafiltration membranes are increasingly used in potabilization to remove viral particles. This removal is controlled by electrostatic repulsion, attachment and size exclusion. The effect of electrostatic interaction in virus filtration was investigated. Our work included characterization of bacteriophage PP7 and polyethersulfone membrane with respect to size and surface charge; the removal of this bacteriophage at laboratory scale by ultrafiltration membrane process and the mechanism and limitations were analyzed and discussed under DLVO and XDLVO theories. A partial removal of the bacteriophage was achieved; however, enhanced separation may be achieved considering that the process is affected by the aqueous matrix. The presence of divalent cations diminished the effectiveness of the procedure as opposed to monovalent cations and species with amphoteric behavior such as bicarbonate. DLVO and XDLVO predicted the interactions studied between bacteriophage PP7 and polyethersulfone membrane. |
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Singapore Centre for Environmental Life Sciences and Engineering |
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Singapore Centre for Environmental Life Sciences and Engineering Gentile, Guillermina José Cruz, Mercedes Cecilia Rajal, Verónica Beatriz Fidalgo de Cortalezzi, María Marta |
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Article |
author |
Gentile, Guillermina José Cruz, Mercedes Cecilia Rajal, Verónica Beatriz Fidalgo de Cortalezzi, María Marta |
author_sort |
Gentile, Guillermina José |
title |
Electrostatic interactions in virus removal by ultrafiltration membranes |
title_short |
Electrostatic interactions in virus removal by ultrafiltration membranes |
title_full |
Electrostatic interactions in virus removal by ultrafiltration membranes |
title_fullStr |
Electrostatic interactions in virus removal by ultrafiltration membranes |
title_full_unstemmed |
Electrostatic interactions in virus removal by ultrafiltration membranes |
title_sort |
electrostatic interactions in virus removal by ultrafiltration membranes |
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2020 |
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https://hdl.handle.net/10356/139464 |
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1681058896465100800 |