In situ subsurface decontamination method

Hydraulic and earth engineering – Soil remediation – With treatment

Reexamination Certificate

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C405S128500, C588S253000, C210S747300

Reexamination Certificate

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06843618

ABSTRACT:
A method of decontaminating soil and ground water containing organic contaminants and divalent metal compounds. It comprises the steps of first treating such soils and ground water with an effective amount an aqueous solution containing a peroxide and a water soluble chelating agent for a time sufficient to have the water soluble chelating agent chelate at least one of the divalent metals of the divalent metal compounds present in the soil and ground water. Next, the chelated metals are brought into contact with the peroxide to catalytically convert the peroxide to an oxidizing agent. Finally, the last step is contacting the organic contaminants in the soil and ground water with the oxidizing agent to oxidize the organic contaminants to environmentally safe, non-toxic compounds.

REFERENCES:
patent: 4294703 (1981-10-01), Wilms et al.
patent: 4321143 (1982-03-01), Wilms et al.
patent: 4370241 (1983-01-01), Junkermann et al.
patent: 4588506 (1986-05-01), Raymond et al.
patent: 4591443 (1986-05-01), Brown et al.
patent: 4604214 (1986-08-01), Carr et al.
patent: 4724084 (1988-02-01), Pahmeier et al.
patent: 4804480 (1989-02-01), Jayawant
patent: 5043080 (1991-08-01), Cater et al.
patent: 5264018 (1993-11-01), Koenigsberg
patent: 5266214 (1993-11-01), Safarzedeh-Amiri
patent: 5286141 (1994-02-01), Vigneri
patent: 5395419 (1995-03-01), Farone
patent: 5520483 (1996-05-01), Vigneri
patent: 5525008 (1996-06-01), Wilson
patent: 5564105 (1996-10-01), Alvino et al.
patent: 5610065 (1997-03-01), Kelley et al.
patent: 5611642 (1997-03-01), Wilson
patent: 5741427 (1998-04-01), Watts et al.
patent: 5955350 (1999-09-01), Soni et al.
patent: 5967230 (1999-10-01), Cooper et al.
patent: 6160194 (2000-12-01), Pignatello
patent: 6210078 (2001-04-01), Redwine et al.
patent: 6268205 (2001-07-01), Kiest et al.
patent: 6459011 (2002-10-01), Tarr et al.
Barbeni et al.; “Chemical Degradation of Chlorophenols with Fenton's Reagent”; Chemosphere, vol. 16, pp. 2225-2237, 1987.
Bowers et al.; “Treatment of Toxic or Refractory Wastewaters with Hydrogen Peroxide”; Water Science & Technology, vol. 21, pp. 477-486, 1989.
Brown et al.; “Competition between chelating agents and roots as factors affecting absorption of iron and other ions by plant species;” Plant Physiology, vol. 35, pp. 878-886, 1960.
Gates et al.; “In Situ Chemical Orientation of Trichloroethylene Using Hydrogen Peroxide”, Journal of Environmental Engineering, vol. 121, pp. 639-644, 1995.
Halvorson et al.; “Equilibrium Relationship of Metal Chelates in Hydroponic Solutions”; Soil Science Society America Journal; vol. 36, pp. 755-761, 1972.
Hill et al.; “Rates of Solution of Limestone Using the Chelating Properties of Versene (EDTA) Compounds”; Kansas State Geological Survey, Bulletin No. 165, Part 7, 1963.
Hill et al.; “Solubility of Twenty Minerals in Selected Versene (EDTA) Solutions”; Kansas Stats Geological Survey, Bulletin No. 175, Part 3, 1965.
Kim et al.; “Enhancing Biological Treatability of Landfill Leachate by Chemical Oxidation”, Environmental Engineering Science, vol. 14, pp. 73-79, 1997.
Lindsay et al.; “Development of a DTPA Soil Test for Zn, Fe, Mn and Cu”; Soil Science Society America Journal; vol. 42, pp. 421-428, 1978.
Lindsay; “Chemical Equilibria in Soils”; chap. 15, 449 p., John Wiley & Sons, 1979.
Lipcynshka-Kocharry et al.; “Influence of some Groundwater and Surface Water Constituents on the Degradation of 4-Chlorophenol by the Fenton Reaction”; Chemosphere, vol. 30, pp. 9-20, 1995.
Norvell et al. “Reactions of EDTA Complexes of Fe, Zn, Mn and Cu with Soils”; Soil Science Society America Proceedings, vol. 33, pp. 86-91, 1969.
Norvell et al.; “Reactions of DTPA Chelates of Fe, Zn, Cu and Mn with Soils”, Soil Science Society America Proceedings, vol. 36, pp. 778-783, 1972.
Pignatello et al.; “Ferric Complexes as Catalysts for “Fenton” Degradation of 2,4-D and Metolachlor in Soil”, Journal of Environmental Quality, vol. 23, pp. 365-370, 1994.
Pradhan et al.; “Pilot-Scale Bioremediation of PAH-Contaminated Soils”; Applied Biochemistry and Biotechnology, vol. 63-65, pp. 759-773, 1997.
Ravikumar et al.; “Chemical Oxidation of Clorinated Organics by Hydrogen Peroxide in the Presence of Sand”; Environmental Science & Technology, vol. 28, 394-400, 1994.
Rush et al.; “The Reaction between Ferrous Polyaminocarboxylate Complexes and Hydrogen Peroxide: An Investigation of the Reaction Intermediates by Stopped Flow Spectrophotometry”; Journal of Inorganic Biochemistry; vol. 29, pp. 199-215; 1987.
Rush et al.; “Distinction between Hydroxyl Radical and Ferryl Species”; Methods in Enzymology, vol. 86, pp. 148-156, 1990.
Schirmann et al.; “Hydrogen Peroxide in Organic Chemistry”; chap. 5, 211 p., Edition Et Documentation Industrielle, 1979.
Schumb et al.; “Hydrogen Peroxide”; chaps 8 & 9, 759 p., American Chemical Society Monograph Series, 1955.
Sedlak et al.; “Oxidation of Chlorobenzene with Fenton's Reagent”; Environmental Science & Technology, vol. 25, pp. 777-782, 1991.
Sparks, “Soil Physical Chemistry”; chap. 4, 409 p., CRC Press, 1999.
Sposito; “The Chemistry of Soils”; chaps. 4 & 5, 277 p., Oxford University Press, 1989.
Stumm et al.; “Aquatic Chemistry, An Introduction Emphasizing Chemical Equilibria in Natural Waters”; Chap. 6, 583 p., John Wiley & Sons, 1970.
Stumm et al.; “Aquatic Chemistry, Chemical Equilibria and Rates in Natural Waters”; chap. 7, 1022 p., John Wiley & Sons, 1996.
Tyre et al.; “Treatment of Four Biorefractory Contaminants in Soils Using Catalyzed Hydrogen Peroxide”; Journal of Environmental Quality, vol. 20, pp. 832-838, 1991.
Voelker et al.; “Effects of Fulvic Acid on Fe(II) Oxidation by Hydrogen Peroxide”; Environmental Science & Technology, vol. 30, pp. 1106-1114, 1996.
Waite et al.; “Kinetics and Stoichiometry of Oxygen Relese from Solid Peroxides”; Environmental Engineering Science, vol. 16, pp. 187-199, 1999.
Walling; “Fenton's Reagent Revisited”; Accounts of Chemical Research, vol. 8, pp. 125-131, 1975.
Walling et al.; “Fenton Reagent, V. Hydroxylation and Side-Chain Cleavage of Aromatics”; Journal of the American Chemical Society, vol. 97, pp. 363-367, 1975.
Walling et al.; “The Oxidation of Mandelic Acid by Fenton's Reagent”; Journal of the American Chemical Society, vol. 104, pp. 1185-1189, 1982.
Watts et al.; “Treatment of Pentachlorophenol Contaminated Soils using Fenton's Reagent”; Hazardous Waste Hazardous Materials, vol. 7, pp. 335-345, 1990.
Watts et al.; “Treatment of Octachlorodibenzo-p-dioxan (OCDD) in Surface Soils Using Catalyzed Hydrogen Peroxide”; Chemosphere, vol. 23, pp. 949-956, 1991.
Watts et al.; “Hydrogen of Peroxide for Physico-Chemically Degrading Petroleum-Contaminated Soils”; Remediation, vol. 2, pp. 413-425, 1992.

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