The role of concentration polarization in the rejection of viruses by nanofiltration membranes

Orlando Coronell, Baoxia Mi, Benito J. Mariñas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nanofiltration (NF) membrane systems are typically operated in relatively low-pressure range. One of the main reasons is that the rejection of water contaminants by NF membranes at relatively high pressure is affected by concentration polarization. However, experimental results from this study revealed that even though the rejection of MS2 phage initially decreased when trans-membrane pressure went up, as a result of the concentration polarization effect, an increasing trend of rejection was observed with further increases in pressure in excess of a certain pressure/water flux value. This phenomenon was observed with ESNA1® (Hydranautics, Oceanside, CA) NF membranes at pH 6-7.6 and 11-25°C.

Original languageEnglish (US)
Title of host publication2005 Water Quality Technology Conference Proceedings, WQTC 2005
StatePublished - Dec 1 2005
Event2005 Water Quality Technology Conference, WQTC 2005 - Quebec City, QC, Canada
Duration: Nov 6 2005Nov 10 2005

Publication series

Name2005 Water Quality Technology Conference Proceedings, WQTC 2005

Other

Other2005 Water Quality Technology Conference, WQTC 2005
Country/TerritoryCanada
CityQuebec City, QC
Period11/6/0511/10/05

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology

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