ELECTROCHEMICAL FLOTATION CONCEPT FOR REMOVING OIL FROM WATER

A study was undertaken to determine the feasibility of an electrochemical flotation system for separating oil from bilge water. This system involves flotation, using electrolytically-produced micro-gas bubbles, subsequent to coagulation and/or adsorption of oily impurities in the water. Initial electroflotation tests were conducted in batch modules to determine the chemical treatment necessary to achieve the desired separation of the entire spectrum of oil-brackish water combinations. Addition of NaOH to adjust the pH to approximately 10 along with 10-15 ppm of anionic polyelectrolyte was the only pretreatment necessary for all oily waters tested. Pilot plant data was used to estimate the costs of systems with capacities of 30, 100 and 1000 gpm. (Modified author abstract)

• Corporate Authors:

  Lockheed Aircraft Service Company

  P.O.Box 33
  Ontario, CA  United States  91761
• Authors:
  • McKenna, Q H
  • Helber, H H
  • Carrell, L M
  • Tobias, R F
• Publication Date: 1973-1

Media Info

• Pagination: 131 p.

Subject/Index Terms

• TRT Terms: Ballast (Ships); Bilges; Colloids; Costs; Design; Electrochemical processes; Electrodes; Electrolytes; Mechanical analysis; Oil spill cleanup; Oil spills; Oils; Onboard navigational aids; Performance; pH value; Pilot plants; Ships; Temperature; Texture; Vehicle components; Water pollution
• Uncontrolled Terms: Oil separators
• Old TRIS Terms: Bilge water; Bilge water treatment; Cg; Oil removal; Performance engineering; Polyelectrolytes; Ship auxiliary equipment; Shipborne
• Subject Areas: Design; Environment; Finance; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00048066
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt
• Contract Numbers: DOT-CG-242,88-A
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM