Membrane Electro Bioreactor for Nitrate Elimination

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$98,590.00
Award Year:
1995
Program:
SBIR
Phase:
Phase I
Contract:
1 R43 ES07311-01,
Award Id:
29418
Agency Tracking Number:
29418
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Box 250179, 26091 Romany, Franklin, MI, 48025
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Stephen Wolpert
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
Nitrate is a health hazard in drinking water. We are developing a simple flow-through membrane elecin which immobilized enzymes catalyze the destruction of nitrate ion into harmless nitrogen gas. Thr(Nitrate Reductase, Nitrite Reductase and Nitrous Oxide Reductase) catalyze the reductions. They wilinside the pores of microporous electrically conductive membranes which serve as electrodes and as menzyme catalysts will be "wired" to the cathode with polymer hydrogels capable of transferring electto the enzymes. In our bioreactor, nitrate solution is pumped through a sandwich of three microporouinsulating filter, and enzyme-immobilized cathode. A DC source powers the electrochemical reduction.will prepare a microporous, electrically conductive membrane so it can receive enzymes and "wires";enzymes; immobilize them on the membrane without denaturing; construct a filter holder with DC voltabioreactor by measuring the change in nitrite concentration in the effluent stream as functions of:concentration, convective flux. In Phase II, we will lower the cost of the enzymes, improve its robuengineering, and control fouling.

* information listed above is at the time of submission.

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