Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2009-02-13
2011-11-08
Prince, Fred (Department: 1776)
Liquid purification or separation
Processes
Treatment by living organism
C210S609000, C210S631000
Reexamination Certificate
active
08052872
ABSTRACT:
Methods of enhancing anaerobic digestion of wastewater are provided. The methods comprise pressure oxidation of digester material to remove sulfide and/or regenerate iron. Also provided are a pressure oxidizer device and a wastewater treatment system having one or more of such devices. The methods, device, and system have application in treatment of municipal wastewater, wastewater of agricultural and livestock operations, and in biofuels production.
REFERENCES:
patent: 4913826 (1990-04-01), Mannig et al.
patent: 5514578 (1996-05-01), Hogness et al.
patent: 5599451 (1997-02-01), Guiot
patent: 5914441 (1999-06-01), Hunter et al.
patent: 6096227 (2000-08-01), Conaway
patent: 6398968 (2002-06-01), Higby
patent: 6569332 (2003-05-01), Ainsworth et al.
patent: 6773604 (2004-08-01), Walton et al.
patent: 6863826 (2005-03-01), Sheets
patent: 7101482 (2006-09-01), Chauzy et al.
patent: 7147783 (2006-12-01), Walton et al.
patent: 7220360 (2007-05-01), Chen et al.
patent: 2007/0187329 (2007-08-01), Moller et al.
patent: 1-236999 (1989-09-01), None
patent: 2003-200141 (2003-07-01), None
Bretler, G., et al., ‘A medium optimization strategy for improvement of growth and methane production byMethanobacterium thermoautotrophicum’, Journal of Biotechnology, vol. 50, Issue 2-3, Oct. 1, 1996, pp. 201-212.
Cacho Rivero, J.A., et al., ‘Oxidative co-treatment using hydrogen peroxide with anaerobic digestion of excess municipal sludge’, Water Environment Research, vol. 78, No. 7 (Jul. 2006), pp. 691-700(10).
Carter, J.L., et al., ‘Effects of iron activated sludge treatment’, Journal of the Environmental Engineering Division, American Society of Civil Engineers, vol. 99, No. EE2 (Apr. 1973) pp. 135-152.
Chidthaisong, A., et al., ‘Turnover and glucose and acetate coupled to reduction of nitrate, ferric iron and sulfate and to methanogenesis in anoxic rice field soil’, FEMS Microbiology Ecology, vol. 31, Issue 1 (Jan. 2000), pp. 73-86.
Clark, P.B., et al., ‘Enhancement of anaerobic digestion using duckweed (Lemna minor) enriched with iron’, Journal of the Chartered Institution of Water and Environmental Management, vol. 10, No. 2, (1996), pp. 92-95.
Conrad, R., ‘Contribution of hydrogen to methane production and control of hydrogen concentrations in methanogenic soils and sediments’, FEMS Microbiology Ecology, vol. 28, Issue 3 (Mar. 1999), pp. 193-202.
Conrad, R., et al., ‘Phosphate inhibits acetotrophic methanogenesis on rice roots’, Applied and Environmental Microbiolody', vol. 66, No. 2 (Feb. 2000), pp. 828-831.
Das, D., et al., ‘Role of Fe-hydrogenase in biological hydrogen production’, Current Science, http://www.ias.ac.in/currsci/jun252006/1627.pdf. vol. 90, No. 12 (Jun. 2006), pp. 1627-1637.
Doyle, D., et al., ‘Struvite formation, control and recovery’, Water Research, 36(16), (2002), pp. 3925-3940.
Ellermann, J., et al., ‘The final step in methane formation: Investigations with highly purified methyl-CoM reductase (component C) fromMethanobacterium thermautotrophicum(strain Marburg)’, Eur. J. Biochem., 172, (1988) pp. 669-677.
Fathepure, B.Z., ‘Factors affecting the methanogenic activity of methanothrix soehngenii VNBF’, Appl. Environ. Microbiol., 53(12) (Dec. 1987), pp. 2978-2982.
Francis, A.J., et al., ‘Influence complexes structure on the biodegradation of iron-citrate complexes’, Appl. Environ. microbiol. 59(1) (Jan. 1993), pp. 109-113.
Gonzales-Gil, G., et al., ‘Effects of nickel and cobalt on kinetics of methanol conversion by methanogenic sludge as assessed by online CH4 monitoring’, vol. 65, No. 4, (Apr. 1999), pp. 1789-1793.
Gyhoot, W., et al., ‘Anaerobic digestion of primary sludge from chemical pre-precipitation’, Water Science and Technolgy, vol. 36, Issue 6-7 (1997), pp. 357-365.
Haschke, R.H., et al., ‘Purification and properties of a hydrogenase fromDesulfovibrio vulgaris’, J Bacteriol., 105(1), (Jan. 1971), pp. 249-258.
Hearn, P.P., et al., Authigenic vivianite in Potomac River sediments;control by ferric oxy-hydroxides, Journal of Sedimentary Research, vol. 53, No. 1, (Mar. 1983), pp. 165-177.
Jeganaesan, J., et al., ‘Long-term performance for high-rate anaerobic reactors for the treatment of oily wastewater’, Environ. Sci. Technol., vol. 40, No. 20 (2006), pp. 6466-6472.
Lee, Young Joon, et al., ‘Effect of iron concentration on hydrogen fermentation’, Bioresource Technology, vol. 80, Issue 3, Dec. 2001, pp. 227-231.
Levit, M.N., et al., ‘Lignan and ligninase’, Bioorg. Khim, 18(3), Mar. 1992, pp. 309-345. (Abstract).
Li, Z., et al., ‘Anaerobic biodegradation of vegetable oil and its metabolic intermediates in oil-enriched freshwater sediments’, Biodegradation, vol. 16, No. 4 (Aug. 2005), pp. 341-352.
Li, Z., et al., ‘Effects of ferric hydroxide on methanogenesis from lipids and long-chain fatty acids in anaerobic digestion’, Water Environment Research, vol. 78, No. 5 (May 2006), pp. 522-530(9).
Li, Z., et al., ‘Effects of ferric hydroxide on the anaerobic biodegradation kinetics and toxicity of vegetable oil in freshwater sediments’, Water Research, 38(18), (Nov. 2004), pp. 3859-3868.
Loewenthal, R.E., et al., ‘Modelling struvite precipitation in anaerobic treatment systems’, Water Science and Technology, vol. 30, No. 12, (1994), pp. 107-116.
Lovely, D.R., et al., ‘Novel mode of microbial energy metabolism:Organic carbon oxidation coupled to dissimilatory reduction of iron or manganese’, Applied. Environ. Microbiol., 54(6), (Jun. 1988), pp. 1472-1480.
Lovely, D.R., et al., ‘Organic matter mineralization with reduction of ferric iron in anaerobic sediments’, Appl. Environ. Microbiol., 51(4) (1986) pp. 683-689.
Lovely, D.R., ‘Dissimilatory Fe(III) and Mn(IV) reduction’, Microbiological Reviews, 55(2), Jun. 1991, pp. 259-287.
Mamais, D, et al., ‘Determination of ferric chloride dose to control struvite precipitation in anaerobic sludge digester’, Water Environment Research, vol. 66, No. 7, (1994) pp. 912-918.
McCammon, C.A., et al., ‘The oxidation mechanism of vivianite as studied by Mossbauer spectroscopy’, American Mineralogist, vol. 65, (1980), pp. 361-366.
Muller, et al., ‘High-intensity shear as a wet sludge disintegration technology and a mechanism for floc structure analysis’, (May 29, 2001), pp. 1-70.
Murthy, S.N., ‘Bioflocculation: Implications for activated sludge properties and wastewater treatment’, http://scholar.lib.vt.edu/theses/available/etd-63098-18036/ (Jul. 23, 1998), pp. 1-162.
Neyens, E., et al., ‘Pilot-scale peroxidation (H2O2) of sewage sludge’, J Hazard Mater., 98(1-3), (Mar. 17, 2003), pp. 91-106.
Nriagu, J., ‘Stability of vivianite and ion-pair formation in the system Fe3(PO4)2-H3P04-H2O’, Geochimica et Cosmochimica Acta, vol. 36, Issue 4, (Apr. 1972), pp. 459-470.
Ohlinger, K.N., et al., ‘Predicting struvite formation in digestion’, Water Research, vol. 32, Issue 12, Dec. 1998, pp. 3607-3614.
Ohmura, N., et al., ‘Anaerobic respiration using Fe3+, So, and H2 in the chemolithoautotrophic bacteriumAcidithiobacillus ferrooxidans’, Journal of Bacteriology, vol. 184. No. 8 (Apr. 2002), pp. 2081-2087.
Park, C., ‘Cations and activated sludge floc structure’, (Jul. 23, 2002), 74 pages.
Park, D.H., et al., ‘Improved fuel cell and electrode designs for producing electricity from microbial degradation’, Wiley Periodicals, Inc., Biotechnol. Bioeng., 81, 2003, pp. 348-355.
Rees, D.C., ‘The interface between the biological and inorganic worlds: Iron-sulfur metalloclusters’, Science, vol. 300, No. 5621 (May 2003), pp. 929-931.
Speece, R.E., ‘Survey of municipal anaerobic sludge digesters and diagnostic activity assays’, Water Research WATRAG, vol. 22. No. 3, (M
Fagan Michael
Szczucki Chester L.
Walton John R.
Watson Ian M.
Prince Fred
U.S. Peroxide LLC
Woodcock & Washburn LLP
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