Method for reducing contamination
View Patent ↗Exemplary compositions, methods, and systems are disclosed that can be useful for reducing a concentration of a contaminant associated with a medium, which can be any substance or material, such as soil, water, air, and/or fluid. In one exemplary method, the medium is treated with Fe-MDGA and an oxidizing agent in amounts effective to oxidize at least a portion of the contaminant. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
1. An oxidation process comprising:
contacting an oxidizable composition of matter with a reaction product of active Fe-MGDA and an oxidizing agent, said active Fe-MGDA having an iron to MGDA molar ratio of approximately 3:1.
2. A method comprising:
producing active Fe-MGDA by contacting a source of ferric ions with MGDA, said active Fe-MGDA having an iron to MGDA molar ratio of approximately 3:1.
3. The method of claim 2 , wherein the source of ferric ions is a ferric salt.
4. The method of claim 2 , further comprising:
combining the active Fe-MGDA with an oxidizing agent.
5. The method of claim 2 , further comprising:
combining the active Fe-MGDA with a peroxide.
6. The method of claim 2 , further comprising:
combining the active Fe-MGDA with a persulphate.
7. The method of claim 2 , further comprising:
combining the active Fe-MGDA with ozone.
8. The method of claim 2 , further comprising:
combining the active Fe-MGDA with a permanganate.
9. The method of claim 2 , further comprising:
combining the active Fe-MGDA with an oxidizing agent; and
applying a reaction product of said combining to a medium containing a medium-contaminating compound.
10. The method of claim 2 , further comprising:
combining the active Fe-MGDA with an oxidizing agent; and
producing a free radical.
11. The method of claim 2 , further comprising:
combining the active Fe-MGDA with an oxidizing agent; and
producing a hydroxyl free radical.
12. The method of claim 2 , further comprising:
oxidizing a medium-contaminating compound via radicals generated from a reaction involving the active Fe-MGDA.
13. The method of claim 2 , further comprising:
oxidizing hydrogen sulfide via radicals generated from a reaction involving the active Fe-MGDA.
14. The method of claim 2 , further comprising:
oxidizing an organic compound having at least one aromatic functional group via radicals generated from a reaction involving the active Fe-MGDA.