PERFORMANCE OF POROUS CELLULOSE ACETATE MEMBRANES FOR THE REVERSE OSMOSIS TREATMENT OF HARD AND WASTE WATERS

The performance of a few typical Loeb-Sourirajan type porous cellulose acetate membranes is reported for the treatment of hard, polluted, and sewage waters. The membranes used are specified in terms of pure water permeability constant and solute transport parameter for sodium chloride. Using feed waters containing 300- to 800-p.p.m. hardness ( expressed as CaCO3 ), product waters containing 2 p.p.m. or less could be obtained with 90% product recovery and an average initial flux of 38 gallons per day per sq. foot at 1000 p.s.i.g. The possibility of producing ultrapure waters by repeated reverse osmosis processing is indicated. The separation of common pollutants such as nitrates, borates, fluoride, alkyl benzene sulfonate ( ABS ), ammonia, and phosphates, and others usually present in plating wastes, and the applicability of the reverse osmosis process for the treatment of sewage waters and water renovation are illustrated. ( Author )

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  • Supplemental Notes:
    • Prepared in Cooperation with Ottawa Pollution Control Center ( Ontario ). Revision of report dated 24OCT68.
  • Corporate Authors:

    American Chemical Society

    1155 16th Street, NW
    Washington, DC  USA  20036

    National Research Council of Canada

    1200 Montreal Road
    Ottawa, Ontario  Canada  K1A 0R6
  • Authors:
    • Sourirajan, S
    • Hauck, Andrew R
  • Publication Date: 1969-12

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Filing Info

  • Accession Number: 00005975
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NRC-10920
  • Files: TRIS
  • Created Date: Nov 25 1973 12:00AM