Understanding the oxidative cleaning of UF membranes

Inna Levitsky, Aviv Duek, Elizabeth Arkhangelsky, Diana Pinchev, Tali Kadoshian, Hila Shetrit, Ronen Naim, Vitaly Gitis

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Increased protein fouling of polyether sulphone membranes after NaOCl cleaning was previously reported but not explained. Here we show that the cleaning increases the hydrophilicity, and the degree of increase linearly correlates with the amount of adsorbed protein. The high initial flux through the cleaned membrane is a result of the hydrophilization of the membrane surface and a promise for the enhanced fouling. We propose that the proper oxidative cleaning should target the restoration of the initial flux and not its increase over initial values. The previously reported pore size changes are subjective as higher hydrophilicity of the membrane surface increases water permeability and adsorption of size test solutes.

Original languageEnglish
Pages (from-to)206-213
Number of pages8
JournalJournal of Membrane Science
Volume377
Issue number1-2
DOIs
Publication statusPublished - Jul 15 2011
Externally publishedYes

Fingerprint

cleaning
Cleaning
membranes
Membranes
fouling
Hydrophilicity
Fouling
Hydrophobic and Hydrophilic Interactions
Fluxes
proteins
Proteins
sulfones
Polyethers
surface water
Surface waters
restoration
Adsorption
Restoration
Pore size
Permeability

Keywords

  • BSA
  • Free chlorine
  • PEG
  • PES
  • PVDF

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

Levitsky, I., Duek, A., Arkhangelsky, E., Pinchev, D., Kadoshian, T., Shetrit, H., ... Gitis, V. (2011). Understanding the oxidative cleaning of UF membranes. Journal of Membrane Science, 377(1-2), 206-213. https://doi.org/10.1016/j.memsci.2011.04.046

Understanding the oxidative cleaning of UF membranes. / Levitsky, Inna; Duek, Aviv; Arkhangelsky, Elizabeth; Pinchev, Diana; Kadoshian, Tali; Shetrit, Hila; Naim, Ronen; Gitis, Vitaly.

In: Journal of Membrane Science, Vol. 377, No. 1-2, 15.07.2011, p. 206-213.

Research output: Contribution to journalArticle

Levitsky, I, Duek, A, Arkhangelsky, E, Pinchev, D, Kadoshian, T, Shetrit, H, Naim, R & Gitis, V 2011, 'Understanding the oxidative cleaning of UF membranes', Journal of Membrane Science, vol. 377, no. 1-2, pp. 206-213. https://doi.org/10.1016/j.memsci.2011.04.046
Levitsky I, Duek A, Arkhangelsky E, Pinchev D, Kadoshian T, Shetrit H et al. Understanding the oxidative cleaning of UF membranes. Journal of Membrane Science. 2011 Jul 15;377(1-2):206-213. https://doi.org/10.1016/j.memsci.2011.04.046
Levitsky, Inna ; Duek, Aviv ; Arkhangelsky, Elizabeth ; Pinchev, Diana ; Kadoshian, Tali ; Shetrit, Hila ; Naim, Ronen ; Gitis, Vitaly. / Understanding the oxidative cleaning of UF membranes. In: Journal of Membrane Science. 2011 ; Vol. 377, No. 1-2. pp. 206-213.
@article{2deebc1952a14a81b189e9040fd47e04,
title = "Understanding the oxidative cleaning of UF membranes",
abstract = "Increased protein fouling of polyether sulphone membranes after NaOCl cleaning was previously reported but not explained. Here we show that the cleaning increases the hydrophilicity, and the degree of increase linearly correlates with the amount of adsorbed protein. The high initial flux through the cleaned membrane is a result of the hydrophilization of the membrane surface and a promise for the enhanced fouling. We propose that the proper oxidative cleaning should target the restoration of the initial flux and not its increase over initial values. The previously reported pore size changes are subjective as higher hydrophilicity of the membrane surface increases water permeability and adsorption of size test solutes.",
keywords = "BSA, Free chlorine, PEG, PES, PVDF",
author = "Inna Levitsky and Aviv Duek and Elizabeth Arkhangelsky and Diana Pinchev and Tali Kadoshian and Hila Shetrit and Ronen Naim and Vitaly Gitis",
year = "2011",
month = "7",
day = "15",
doi = "10.1016/j.memsci.2011.04.046",
language = "English",
volume = "377",
pages = "206--213",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Understanding the oxidative cleaning of UF membranes

AU - Levitsky, Inna

AU - Duek, Aviv

AU - Arkhangelsky, Elizabeth

AU - Pinchev, Diana

AU - Kadoshian, Tali

AU - Shetrit, Hila

AU - Naim, Ronen

AU - Gitis, Vitaly

PY - 2011/7/15

Y1 - 2011/7/15

N2 - Increased protein fouling of polyether sulphone membranes after NaOCl cleaning was previously reported but not explained. Here we show that the cleaning increases the hydrophilicity, and the degree of increase linearly correlates with the amount of adsorbed protein. The high initial flux through the cleaned membrane is a result of the hydrophilization of the membrane surface and a promise for the enhanced fouling. We propose that the proper oxidative cleaning should target the restoration of the initial flux and not its increase over initial values. The previously reported pore size changes are subjective as higher hydrophilicity of the membrane surface increases water permeability and adsorption of size test solutes.

AB - Increased protein fouling of polyether sulphone membranes after NaOCl cleaning was previously reported but not explained. Here we show that the cleaning increases the hydrophilicity, and the degree of increase linearly correlates with the amount of adsorbed protein. The high initial flux through the cleaned membrane is a result of the hydrophilization of the membrane surface and a promise for the enhanced fouling. We propose that the proper oxidative cleaning should target the restoration of the initial flux and not its increase over initial values. The previously reported pore size changes are subjective as higher hydrophilicity of the membrane surface increases water permeability and adsorption of size test solutes.

KW - BSA

KW - Free chlorine

KW - PEG

KW - PES

KW - PVDF

UR - http://www.scopus.com/inward/record.url?scp=79958022743&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958022743&partnerID=8YFLogxK

U2 - 10.1016/j.memsci.2011.04.046

DO - 10.1016/j.memsci.2011.04.046

M3 - Article

VL - 377

SP - 206

EP - 213

JO - Jornal of Membrane Science

JF - Jornal of Membrane Science

SN - 0376-7388

IS - 1-2

ER -