OIL/WATER SEPARATION WITH NONCELLULOSIC ULTRAFILTRATION SYSTEMS

In accordance with current efforts for environmental protection, oily wastewater generated aboard ships will require treatment before discharge in waters of the contiguous zone. One of several processes being investigated for oily wastewater treatment is ultrafiltration, a pressure-driven membrane process. Satisfactory separation of oil from water has been achieved thus far, using cellulose-acetate-type membranes. These membranes exhibit hydrolytic instability and temperature sensitivity. Recently available noncellulosic membrane systems show potential of overcoming these limitations. Several different ultrafiltration membrane systems were experimentally examined for their capability to separate emulsified and suspended oil from water. The active separation surfaces were noncellulosic, being either inorganic or organic polymer types. Configurations studied were tubular, spiral-wound, hollow-fiber, and plate-and-frame. Ultrafiltration rates (fluxes) were observed to vary significantly among the different systems. Detergent cleaning of the membranes was a time-consuming procedure, with the detergent itself responsible for a decline in flux.

  • Corporate Authors:

    Naval Ship Research and Development Center

    Bethesda, MD  USA  20034
  • Authors:
    • Schatzberg, P
    • HARRIS, L R
    • Adema, C M
    • Jackson, D F
    • Kelley, C M
  • Publication Date: 1975-4

Media Info

  • Pagination: 34 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098503
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NSRDC-4530
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM