ELECTROCHEMICAL WATER RECOVERY PROCESS FOR DIRECT REMOVAL OF IMPURITIES

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$496,180.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
12131
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Umpqua Research Company
P.o. Box 791, Myrtle Creek, OR, 97457
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Clifford D. Jolly
Principal Scientist
(503) 863-5201
Business Contact:
DAVID F. PUTNAM
PRESIDENT
(503) 863-5201
Research Institution:
n/a
Abstract
IN THIS CONCEPT, ORGANIC IMPURITIES ARE REMOVED BY ELECTROLYSIS; INORGANIC IMPURITIES BY ELECTRODIALYSIS. IN PREVIOUS WORK A PROBLEM WAS CAUSED BY THE RELATIVE INSOLUBILITY OF POTASSIUM PERCHLORATE, WHICH PRECIPITATED WITHIN THE ELECTRODIALYSIS MEMBRANES CAUSING THEM TO CEASE FUNCTIONING. EFFORTS WERE UNSUCCESSFUL IN PREVENTING THE FORMATION OF PERCHLORATES IN THE ELECTROLYSIS STEP, WHICH WOULD HAVE OVERCOME THE PROBLEM. A UNIQUE SOLUTION IS PROPOSED HERE. A REGENERABLE CATION EXCHANGE RESIN BED REMOVES THE TROUBLESOME POTASSIUM IONS AND REPLACES THEM WITH SODIUM IONS, WHICH FORM A MORE SOLUBLE PERCHLORATE SALT. REGENERATION IS ACHIEVED WITH THE CONCENTRATED SODIUM-RICH BRINE FROM THE ELECTRODIALYSIS STEP. NO EXPENDABLE MATERIALS ARE REQUIRED.

* information listed above is at the time of submission.

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