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A Compact Self-Cleaning Filtration System with Periodic Automatic Back-Flushing…

Award Information

Agency:
Department of Defense
Branch:
Office of the Secretary of Defense
Award ID:
41346
Program Year/Program:
1998 / SBIR
Agency Tracking Number:
41346
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Mechanical Solutions, Inc.
11 Apollo Drive Whippany, NJ 07981-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1998
Title: A Compact Self-Cleaning Filtration System with Periodic Automatic Back-Flushing for Pretreatment of RO Filtration
Agency / Branch: DOD / OSD
Contract: N/A
Award Amount: $69,551.00
 

Abstract:

The objective of this proposal is to demonstrate the feasibility of an innovative design that combines centrifugal separation, cross-flow filtration (CFF), Dean flow surface cleaning and back-flush techniques into an effective micro-filtration unit. The centrifugal separation is effective in separating particles that have higher specific gravity that the feed fluid down to 20 microns. CFF is especially effective for feed flow with a high amount of colloidal solids. Unlike dead-end filtration, the surface dynamics of CFF does not make the gelatinous colloidal solids extrude through pores which often comprise the performance of filtration. CFF makes use of the shear force parallel to the filter medium to reduce the cake formation on the filter surface. Dean flow is a secondary flow created in a curved flow passage. The resulting flow profile takes the form of a toroidal vortex. The vortex profile generates a high shear rate which acts to transport material such as colloidal solids and fine silts away from the membrane surface. The combination of these features with an automatic back-flushing device forms a compact, self-cleaning and continuously operable unit suitable for pre-filtration in the Navy shipboard reverse osmosis application.

Principal Investigator:

Chang-wei Jen
9733269920

Business Contact:


0
Small Business Information at Submission:

MECHANICAL SOLUTIONS, INC.
1719 Rt. 10 E Parsippany, NJ 07054

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No