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Performance decline in brackish water Film Tec spiral wound RO membranes

Authors
Journal
Desalination
0011-9164
Publisher
Elsevier
Publication Date
Volume
136
Identifiers
DOI: 10.1016/s0011-9164(01)00191-6
Keywords
  • Ro
  • Brackish Water Desalination
  • Spiral Wound Membrane
  • Filmtec
  • Long-Term Performance

Abstract

Abstract In this paper, long-term operational data from a medium scale RO plant based on brackish water FilmTec spiral wound RO membranes are presented and analysed. It was found that over a period of 500 days of continuous operation, the water permeability coefficient for the overall plant decreased by about 25% and the salt rejection dropped by 1.9%. Simple formulae representing the long-term performance of the plant were developed. These expressions were found to fit the data with very good accuracy.

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