Renovation of Waste Shower Water by Membrane Filtration.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1976
- Accession Number
- ADA108571
Entities
People
- Daniel S. Lent