Ships' laundry wastewater treatment development is motivated by the desire to minimize water pollution and to save energy. For a system to be attractive to the Navy, it should include on-line treatment to minimize tankage, high quality of effluent or recycle water, low use of chemicals, and high reliability. It should also be relatively light and require little maintenance. Solving of systems development problems is complicated by the different laundry practices, laundry agent compositions, and machinery configurations encountered in Fleet ships. A number of systems for treating laundry wastewater, based on reverse osmosis, ultrafiltration, various distillation techniques, or microfiltration, are evaluated, but main emphasis is focused on the approach involving strict adherence to using a specific laundry agent mixture, rapid on-line wastewater treatment, and re-use of the effluent in the laundry machines. In the fully automated, but relatively simple system, 2 additives are metered into the wastewater. A coarse precipitate is formed which entraps suspended matter and which is easily removed by froth flotation, leaving the polished effluent ready for re-use.

  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • Lard, E W
  • Publication Date: 1976

Media Info

  • Features: References;
  • Pagination: 8 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00148183
  • Record Type: Publication
  • Source Agency: Pollution Abstracts
  • Report/Paper Numbers: Pap 76-ENAS-48
  • Files: TRIS
  • Created Date: Feb 16 1977 12:00AM