Grantee Research Project Results
1994 Progress Report: Enzymatic Nitrate Elimination Technology for Small Systems
EPA Contract Number: 68D50127Title: Enzymatic Nitrate Elimination Technology for Small Systems
Investigators: Campbell, Ellen R.
Current Investigators: Campbell, Ellen R. , Campbell, Wilbur W.
Small Business: The Nitrate Elimination Company Inc.
EPA Contact: Richards, April
Phase: II
Project Period: September 1, 1995 through October 1, 1997
Project Period Covered by this Report: September 1, 1993 through October 1, 1994
Project Amount: $219,898
RFA: Small Business Innovation Research (SBIR) - Phase II (1995) Recipients Lists
Research Category: Watersheds , SBIR - Water and Wastewater , Small Business Innovation Research (SBIR)
Description:
Nitrate contamination of potable water supplies is a wide spread problem in the US. The Clean Water Act (1991) sets a limit of 10 mg nitrate-N per liter for all drinking water supplies, which is difficult to achieve with existing technologies, especially for small systems. To help small system owners meet the new standards, The Nitrate Elimination Company, Inc., propose to research and develop Enzymatic Nitrate Elimination Technology (EzNET). This unique approach uses three enzymes for converting nitrate to nitrogen gas, an environmentally safe and non-toxic gas, without adding anything to the water. Nitrate reductase (NaR), nitrite reductase (NiR) and nitrous oxide reductase (NoR) will be immobilized on electro-conductive material and powered by a low voltage direct current to drive reduction of nitrate to nitrogen gas. Proposed objectives are to develop:
- enabling technology for enzyme immobilization using NaR, which the proposers
currently produce via a proprietary technology;
- cost-effective methods of producting NiR and NoR from a bacterium; and
- an effective EzNET system for nitrate elimination from small water systems.
Journal Articles:
No journal articles submitted with this report: View all 1 publications for this projectSupplemental Keywords:
Nitrate, Enzymes, Immobilization, Small Systems., RFA, Scientific Discipline, Water, Chemical Engineering, Environmental Chemistry, Chemistry, Drinking Water, Environmental Engineering, Engineering, Chemistry, & Physics, alternative disinfection methods, electrically driven enzymes, enzyme catalysts, chemical contaminants, community water system, groundwater contamination, contaminant removal, drinking water contaminants, drinking water treatment, other - risk management, drinking water system, groundwaterProgress and Final Reports:
Original AbstractSBIR Phase I:
Enzymatic Nitrate Elimination Technology for Small Systems | 1995 Progress Report | Final ReportThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.