PURIFYING POST-TREATED WATER USING SOLAR/U.V. IRRADIATED PHOTOCATALYTIC MODULE

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$499,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
5081
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Photo-catalytics Inc.
P.o. Box 13335, Boulder, CO, 80301
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
GERALD COOPER
INVESTIGATOR
() -
Research Institution:
n/a
Abstract
THE USE OF EXTRATERRESTRIAL SOLAR IRRADIATED SEMICONDUCTOR POWDERS TO PHOTOCATALYTICALLY OXIDIZE ORGANIC TOXICANTS PERSISTENT IN THE SPACE STATION'S POST-TREATED WATER, TO THELEVELS SPECIFIED BY NASA MEDICAL SCIENCES DIVISION, IS PROPOSED. THE TOTAL MINERALIZATION OF SEVERAL CLASSES OF ORGANIC COMPOUNDS BY THE UV IRRADIATION OF UNDOPED, NAKED AND PLATINIZED TIO2 (ANATASE) POWDERS HAS BEEN ABUNDANTLY DEMONSTRATED IN THE LITERATURE AND BY US. IN THIS PROPOSAL THE USE OF A NOVEL POWDER-IMMOBILIZING STRUCTURE (MODULE) PERMITS CONTINUOUS WATER TREATMENT THAT IS NOT POSSIBLE WITHTHE CONVENTIONALLY EMPLOYED BATCH REACTORS; THE MODULE ALSO AVOIDS THE PROBLEMS OF MAINTAINING SUSPENSION OF THE POWDER AND SUBSEQUENT POWDER SEPARATION. THE ACHIEVEMENT OF SELF-SUFFICIENT WATER PURIFICATION AND OTHER ADVANTAGES OF THE MODULE ARE DISCUSSED. DATA FROM THIS PHASE I STUDY WILLALSO INDICATE THE FEASIBILITY OF TOTALLY SUPPLANTING CHARCOAL PURIFICATION WITH SOLAR IRRADIATED MODULES. PHASE II R&D WILL ADDRESS QUARTZ MODULE SCALE-UP; ALTERNATIVE MANUFACTURING TECHNIQUES; LONGEVITY TESTING, EFFICIENCY MEASUREMENTS AT HIGH PHOTON FLUX ( 10 SUNS), AND PURIFICATION OF ACTUAL POST-TREATED AND RAW DISTILLATE WATER.

* information listed above is at the time of submission.

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