RENOVATION OF WASTE SHOWER WATER BY MEMBRANE FILTRATION

In accordance with current efforts for environmental protection and energy conservation, the U.S. Coast Guard is considering shower wastewater treatment for reuse as laundry water aboard water craft. A process being investigated for this purpose is ultrafiltration. Five off-the-shelf ultrafiltration systems were considered containing membrane fiber configurations of tubular, spiral-wound, hollow and plate-and-frame. Ultrafiltration rates (fluxes) along with power requirements were observed to vary significantly depending on the system and the membrane configuration used. The treated water was of suitable quality for reuse as laundry water. Although membrane cleaning could recover flux, the rate of flux decline was faster for cleaned membranes than new membranes. To protect the system, pretreatment is required to remove hair and other fibers from the feedwater prior to application to the membranes. The hollow-fiber membrane configuration is the only membrane configuration not requiring chemicals for membrane cleaning. (Author)

• Corporate Authors:

  Army Mobility Equipment Research and Development Command

  Fort Belvoir, VA  United States 

  United States Coast Guard

  2100 Second Street, SW
  Washington, DC  United States  20593
• Authors:
  • Lent, D S
• Publication Date: 1976-11

Media Info

• Pagination: 83 p.

Subject/Index Terms

• TRT Terms: Filtration; Sewage treatment; Ships; Wastewater; Water
• Uncontrolled Terms: Membranes; Shipboard; Ultrafiltration; Water treatment
• Old TRIS Terms: Laundry operations; Membranes (Biology); Off the shelf equipment; Shower facilities
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00347815
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: USCG-D-25-77
• Contract Numbers: MIPR-Z-70099-4-43107
• Files: NTIS
• Created Date: Mar 30 2002 12:00AM