The Composition of “Scaling” on Seawater RO Membranes

  • G. Peplow
Part of the Environmental Science Research book series (ESRH, volume 42)

Abstract

The commissioning of the seawater Reverse Osmosis Plant at Ghar Lapsi, Malta, was a major asset for the production of drinking water for the Island. The feedwater, product and brine samples from the Plant, were analyzed periodically to monitor its initial performance.

The results indicated loss of product water flow and high salt passage which were somewhat higher than expected. The cleaning solutions used to regenerate the hollow fiber permeators were analyzed and found to contain trace metals, which are potential foulants.

Chemical tests on fouled membrane strands confirmed the presence of some trace metal deposits. An XRF analysis on some fouled membrane strands indicated the presence of other trace elements, namely, V, S, Al and Sr, but excluded the presence of Zn, Co, Mn, Ni and Cd which were part of the research programe.

Keywords

Zinc Burner Permeability Cellulose Hydrated 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Richter, J. W. and Hoehn, H. H., US Pat. 3,567,632.Google Scholar
  2. [2]
    Shields, C. P. Proc. 6th Intl. Symp.; Fresh Water from the Sea, 3, 295, 1979.Google Scholar
  3. [3]
    Kellar, R. A. World Water, 2, 44, 1979.Google Scholar
  4. [4]
    Beasley, J. K. Desalination, 22, 181–187, 1977.CrossRefGoogle Scholar
  5. [5]
    McGinnis, P. R. and O’Brian, G. J., US Patent, 3690,000.Google Scholar
  6. [6]
    Ganci, J. B., US Patent 3,853,755.Google Scholar
  7. [7]
    Ganci, J. B., Jensen, J. H. and Smith, F. H., US Patent, 3,808,303.Google Scholar
  8. [8]
    Jackson, J. M. and Ladott D. Desalination, 12, 361–378, 1973.CrossRefGoogle Scholar
  9. Water Quality and Treatment, 3rd Ed., A.W.W.A. McGraw Hill N.Y., 83, 1971.Google Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • G. Peplow
    • 1
  1. 1.Department of ChemistryUniversity of MaltaMsidaMalta

Personalised recommendations