Visible Light Activated Photocatalytic Water Polishing System

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,259.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
NNJ04JC10C
Award Id:
68502
Agency Tracking Number:
035565
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
133 Defense Hwy, Suite 212, Annapolis, MD, 21401
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
153908801
Principal Investigator:
WalterZimbeck
Principal Investigator
(410) 224-3710
zimbo@techassess.com
Business Contact:
SharonFehrenbacher
Business Official
(410) 224-3710
info@techassess.com
Research Institute:
n/a
Abstract
This proposal targets development of a LED light activated photocatalytic water polishing system that enables reduction of organic impurities (TOC and microorganisms) in the processed water to levels less than 0.25 ppm for NASA?s future long duration mission. The proposed photocatalytic oxidation reactor is novel in two ways: 1) Strongly oxidative nanostructured TiON photocatalysts under visible light activation, which enables miniaturized water treatment devices utilizing energy efficient LEDs and/or solar radiation in space; and 2) A novel catalyst support approach that enables optimization of the structure to maximize exposed surface area and induce turbulent water flow for very high mass transfer rates. Rapid decomposition of organic contaminants in the water stream translates into a low energy, low volume, and lightweight method of polishing reclaimed water on manned spacecraft. In Phase I, TiON coated reticulated structures will be fabricated and evaluated in a test cell spiked with organic contaminants similar to those in process wastewater streams on board spacecraft using LEDs. Contaminant destruction rates will be compared for using different purification system such as photolysing and photocatalysis using titania and UV light. Phase I results will be used to design a pilot scale treatment system in Phase II.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government