Novel Membrane Separation System for Shipboard Oily Wastewater Treatment

Abstract

The objective of the demonstration is to improve fouling resistance and process reliability of ceramic membrane modules used in the secondary treatment of oily wastewater using a nonporous polymer coating, thereby reducing life-cycle costs. A secondary objective was to improve acquisition cost of membranes through the use of polymeric spiral-wound membranes in lieu of ceramic. This study has so far shown that ceramic membranes coated with one layer of 0.1% Pebax 1074 have at least doubled the life of uncoated membranes in the laboratory. Oil separation performance is equal. Spiral-wound polymeric membranes could not pass the required amount of flux after the coating was applied, and so were deemed unsuitable for this application. Full-scale coated membranes were then installed on USS JAMES E. WILLIAMS (DDG 95). Unfortunately, the membrane system suffered an electrical failure during the deployment, so the membrane lifetime at sea could not be determined. It is recommended that the membranes continue to be monitored until sufficient data is obtained.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2010
Accession Number
ADA544878

Entities

People

  • David W. Maribo

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Arleigh Burke Class
  • Control Panels
  • Cost Analysis
  • Costs
  • Department Of Defense
  • Environmental Protection
  • Flow Rate
  • Life Cycle Costs
  • Life Cycles
  • Navy
  • Performance Tests
  • Pressure Gages
  • Ships
  • Test And Evaluation
  • Test Methods
  • Uss James E. Williams

Readers

  • Environmental Engineering
  • Life Cycle Cost Analysis
  • Surface Engineering/Surface Coating Technology.