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A Photoelectrocatalytic Device for Removing Ammonia from Water

Award Information

Agency:
Department of Agriculture
Branch:
N/A
Award ID:
83640
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
2007-00408
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
AQUAMOST, LLC
100 S BALDWIN ST, STE 101 MADISON, WI 53703-3054
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: A Photoelectrocatalytic Device for Removing Ammonia from Water
Agency: USDA
Contract: 2007-33610-18003
Award Amount: $80,000.00
 

Abstract:

Recirculating systems are expected to play a key role in the expansion of US aquaculture production. Recirculating systems allow year-around production of aquatic organisms under controlled conditions, require very little water and land, have minimal effluent discharge, and can be set up almost anywhere, including in cities close to major markets. These systems can also be operated in a biosecure manner unlike other forms of aquaculture. Recirculation aquaculture is currently not economically favorable, primarily because of the high costs of building and operating the complex systems required for nitrogenous waste removal (biofiltration). We propose to develop and test a simple and efficient device that converts ammonia in water directly into nitrogen gas using patented nanotechnology procedures, and a process called photoelectrocatalytic oxidation (PECO). Several variables need to be evaluated and optimized before a commercial-scale device can be used to replace biological filtration in closed-system aquaculture. Phase 1 experiments will optimize PECO reaction kinetics by evaluating the effects of photoanode chemistry, light quality, applied voltage, pH, and salinity on the rate of ammonia oxidation and byproduct formation (e.g., nitrite, nitrate). Phase 2 will focus on designing, fabricating and testing a commercial-scale unit for removing ammonia from tanks stocked with fish. Additional markets for our device include the aquarium industry, waste water treatment, water bottling, and drinking water supplies, where this technology should assist in removing organic contaminants (e.g., endocrine disruptors), disease-causing microorganisms (E. coli), and potential biological and chemical threat agents (e.g., G- and V-series nerve agents, brucellosis, ricin).

Principal Investigator:

Walter A. Zeltner
6083456678
walt@microporousoxides.com

Business Contact:

Terrence P. Barry
President
6088431425
tpbarry@charter.net
Small Business Information at Submission:

AquaMOST, LLC
1202 Ann St. Madison, WI 53713

EIN/Tax ID: 204499593
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No