Back to results
US 12,509,381 B2Granted
Oxidant enhanced Feammox activity
AssigneeThe Trustees of Princeton University
InventorsPeter R. Jaffe, Shan Huang
Life of this patent
Estimating the term…
Abstract
In one aspect, oxidant is employed for enhancing Feammox activity. Briefly, a medium comprises an ammonium containing contaminant, an iron component, an oxidant, and a Feammox bacterium and/or enzyme thereof capable of oxidizing ammonium with reduction of Fe(II) to Fe(III), wherein the oxidant regenerates Fe(III) via Fe(II) oxidation. In some embodiments, the medium is soil and/or water.
Claims27
A medium comprising:
- an ammonium containing contaminant, an iron component, an oxidant comprising elemental sulfur, and a Feammox bacterium and/or enzyme thereof capable of oxidizing ammonium coupled with reduction of Fe(III) to Fe(II), wherein the elemental sulfur regenerates Fe(III) via Fe(II) oxidation and, the elemental sulfur is reduced to sulfide.
A method of environmental remediation comprising:
- providing a medium including one or more ammonium containing contaminants;
- disposing an oxidant comprising elemental sulfur and a Feammox bacterium and/or enzyme thereof in the medium;
- and oxidizing the ammonium with the Feammox bacterium and/or enzyme thereof coupled with reduction of Fe(III) to Fe(II);
- and regenerating Fe(III) with the elemental sulfur via Fe(II) oxidation and, the elemental sulfur is reduced to sulfide.
1 more element
Dependencies are inferred from the claim text.