ENHANCEMENT OF MEMBRANE FILTER PERFORMANCE BY VIBRATION

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 14516
Amount: $49,995.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Atlantic Applied Research Corp
4 A Street, Burlington, MA, 01803
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Steven A Africk
 Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
SO-CALLED "FOULING" OF FILTRATION MEMBRANES, WHICH LEADS TO DIMINISHED FILTRATE FLUX AND ALTERED SOLUTE REJECTION AND SELECTIVITY WITH TIME, IS ATTRIBUTABLE TO BUILDUP OF SURFACEMATERIALS. RESPONSIBLE MECHANISMS INCLUDE BOUNDARY LAYER, GEL AND CAKE PHENOMENA, AND INTERACTIONS OF PARTICLES OR SOLUBLE COMPONENTS (E.G., PROTEINS) WITH THE MEMBRANE. A POSSIBLE SOLUTION TO THIS PROBLEM IS VIBRATION OF THE MEMBRANE SURFACE TO MINIMIZE AND/OR DISLODGE THIS BUILDUP. TO DEMONSTRATE THE POTENTIAL OF THIS CONCEPT, A SERIES OF LABORATORY EXPERIMENTS ARE TESTING THE ABILITY OF TWO CONFIGURATIONS TO ENHANCE FILTRATE FLUX. ONE CONFIGURATION INVOLVES VIBRATION OF COMMERCIALLY AVAILABLE MEMBRANES, AND THE OTHER IS AN INTRINSICALLY PIEZOELECTRIC MEMBRANE. EFFECTS OF EXCITATION LEVEL, FREQUENCY, AND TEMPORAL CHARACTERISTICS ON FILTER OUTPUT ARE BEING QUANTIFIED IN PHASE I.

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government