Hazardous or toxic waste destruction or containment – Processes for making harmful chemical substances harmless,... – By reacting with chemical agents
Reexamination Certificate
2008-07-08
2008-07-08
Johnson, Edward M. (Department: 1793)
Hazardous or toxic waste destruction or containment
Processes for making harmful chemical substances harmless,...
By reacting with chemical agents
Reexamination Certificate
active
07396974
ABSTRACT:
Methods for oxidizing organic compounds using hydroxyl radicals formed through redox cycling chelator-mediated Fenton chemistry are disclosed. The methods include generating a reactive oxygen species by contacting a redox cycling chelator with an oxygen containing oxidant and a transition metal species. By contacting the resulting reactive oxygen species with an organic compound, the organic compound is oxidized. The preferred transition metal species is a cationic transition metal, such as iron or copper. The disclosed methods may be used to degrade organic waste compounds and dyes, activate lignocellulosic materials for bonding and produce adhesive formulations.
REFERENCES:
patent: 2388487 (1945-11-01), Linzell
patent: 4007312 (1977-02-01), Stofko et al.
patent: 4087318 (1978-05-01), Samuelson et al.
patent: 4432921 (1984-02-01), Haars et al.
patent: 5266214 (1993-11-01), Safarzedeh-Amiri
patent: 5268141 (1993-12-01), Ototani et al.
patent: 5356539 (1994-10-01), Peter et al.
patent: 5470614 (1995-11-01), Chen et al.
patent: 5525008 (1996-06-01), Wilson
patent: 5716528 (1998-02-01), Jasim et al.
patent: 6046375 (2000-04-01), Goodell et al.
patent: 6258207 (2001-07-01), Pan
patent: 6287708 (2001-09-01), Viikari et al.
patent: WO 96/03546 (1990-02-01), None
Azmi et al., “Biodegradation of triphenylmethane dyes”,Enzyme and Microbial Technology22: 185-191 (1998), no month.
Banat et al., “Microbial Decolorization of Textile-Dye-Containing Effluents: A Review”,Bioresource Technology58: 217-227 (1996), no month.
Cao, “Characterization of an extracellular azo dye-oxidizing peroxidase fromFlavobacteriumsp. ATCC 39723”,Enzyme Microb. Technol., 15: 810-817 (1993), no month.
Eisenhauer, “Oxidation of Phenolic Wastes”,Journal WPCF36:9. 1116-1128 (1964), no month.
Felby et al., “Identification and quantification of radical reaction intermediates by electron spin resonance spectrometry of laccase-catalyzed oxidation of wood fibers from beech (Fagus sylvatica)”,Appl Microbiol Biotechnol48: 459-464 (1997), no month.
Gierer, “Basic Principles of Bleaching, Part 2. Anionic Processes”,Holzforschung44:6: 395-400 (1990), no month.
Goodell et al , “Low molecular weight chelators and phenolic compounds isolated from wood decay fungi and their role in the fungal biodegradation of wood”,Journal of Biotechnology53: 133-162 (1997), no month.
Haber et al., “The Catalytic Decomposition of Hydrogen Peroxide by Iron Salts”,Proc. R. Soc. London147:332-351 (1934), no month.
Hosono et al., “Decoloration and Degradation of Azo Dye in Aqueous Solution Supersaturated with Oxygen by Irradiation of High-energy Electron Beams”,Appl. Radiat. Isot.44:9: 1199-1203 (1993), no month.
Hyde et al., “A mechanism for production of hydroxyl radicals by the brown-rot fungusConiophora puteanaFe(III) reduction by cellobiose dehydrogenase and Fe(II) oxidation at a distance from the hyphas”,Microbiology143: 259-266 (1997), no month.
Kharazipour et al., “Enzymatic activation of wood fibres as a means for the production of wood composites”,J. Adhesion Sci. Technol.11:3: 419-427 (1997), no month.
Koenings, “Production of Hydrogen Peroxide by Wood-Rotting Fungi in Wood and Its Correlation with Weight Loss, Depolymerization, and pH Changes”,Arch. Microbiol.99: 129-145 (1974), no month.
Koenigs, “Hydrogen Peroxide and Iron: A Microbial Cellulolytic System?”,Biotechnol.&Bioeng. Symp.5: 151-159 (1975), no month.
Nakagawa et al , “Characteristic Bleaching Profiles of Cyanine Dyes Depending on Active Oxygen Species in the Controlled Fenton Reaction”,Biol. Pharm. Bull.16 11 1061-1064 (1993), no month.
Namboodri et al., “Decolorizing Dyes with Chlorine and Ozone: Part I”. American Dyestuff Reporter: Mar. 17-22, 1994.
Namboodri et al., “Decolorizing Dyes with Chlorine and Ozone: Part II”, American Dyestuff Reporter: Apr. 17-26, 1994.
Palma et al.. “In Vitro Degradation of the Dye Poly R-478 by Crude and Semipurified Manganese Peroxidase”, B103-105, Dept. of Chemical Engineering, University of Santiago de Compostela, E-15706, Spain, no date.
Paszczynski et al., New approach to improve degradation of recalcitrant azo dyes byStreptomycesspp andPhanerochaete chrysosporium. Enzyme Microb. Technol., 13: 378-384 (1991), no month.
Perkins, “A Demonstration of Reuse of Spent Dyebath Water Following Color Removal with Ozone”,Textile Chemist and Colonist28:1: 31-37 (1995), no month.
Schmidt et al., “A Proposed Role for Oxalic Acid in Non-Enzymatic Wood Decay by Brown-Rot Fungi”,Proceedings of the Seventy-Seventh Annual Meeting of the American Wood-Preservers AssociationApr. 26-29, 1981, vol. 77.
Spadaro et al., “Research Communications: Hydroxyl Radical Mediated Degradation of Azo Dyes: Evidence for Benzene Generation”,Environ. Sci. Technol.28:7: 1389-1393 (1994), no month.
Strickland et al., “Declorization of Continuous Dyeing Wastewater by Ozonation”,Textile Chemist and Colorist27.5. 11-15 (1995), no month.
Wong et al., “Decolorization and Biodegradation of Methyl Red byKlebsiella pneumoniaeRS-13”,Wat. Res.30:7: 1736-1744 (1996), no month.
Xu et al., “Mechanisms of wood degradation by brown-rot fungi: chelator-mediated cellulose degradation and binding of iron by cellulose”.Journal of Biotechnology87: 43-57 (2001), no month.
Yang et al., “Decolorization of Dyes Using UV/H2O2Photochemical Oxidation”,Textile Chemist and Colorist30:4, 27-35 (1998), no month.
Young et al , “Ligninase-Catalysed Decolorization of Synthetic Dyes”,Wat. Res.31.5: 1187-1193 (1997), no month.
Wanpeng et al , “Application of Ferrous-Hydrogen Peroxide for the Treatment of H-Acid Manufacturing Process Wastewater”,Wat. Res.30.12. 2949-2954 (1996), no month.
Goodell Barry S.
Jellison Jody L.
Johnson Edward M.
Townsend and Townsend / and Crew LLP
University of Maine
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