Concurrent Clarification and Biological Nitrification/Denitrification in a Single Floating Bead Bioclarifier to Simplify Nitrogen Management in Recirculating Aquaculture Systems

Award Information
Agency:
Department of Commerce
Branch
n/a
Amount:
$49,990.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
DG133R-05-CN-1208
Award Id:
72514
Agency Tracking Number:
NOAA 05-43
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Aquaculture Systems Technoloiges, LLC (Currently AQUACULTURE SYSTEMS TECHNOLOGIES, L.L.C.)
108 Industrial Avenue, Jefferson, LA, 70121
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Douglas Drennan II
Managing Member
(504) 837-5575
douglas@beadfilters.com
Business Contact:
Catherine Drennan
Member
(504) 837-5575
cathy@beadfilters.com
Research Institution:
n/a
Abstract
Commercial-scale marine aquaculture has the potential to balance the increasing demand for high-quality seafood products with the harvest capacity of our nation¿s oceans. However, water reuse in recirculating aquaculture systems (RAS) is limited by the accumulation of nitrate (NO3), which is toxic to many species in high concentrations. Therefore, NO3 removal by denitrification presents a pressing need for the aquaculture community. This project proposed to investigate the potential for using a single floating bead bioclarifier (FBB) to capture solids as well as nitrify and denitrify water in RAS. The sludge captured within the FBB will be used as a carbon source for denitrification. The volumetric rate of denitrification within FBB will be quantified based on filter backwash frequency and sludge retention time within the FBB. A computer model will then be created that will allow AST to size the FBB for a variety of both marine and fresh-water applications.

* information listed above is at the time of submission.

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