Low oxygen biologically mediated nutrient removal

Liquid purification or separation – Processes – Treatment by living organism

Reexamination Certificate

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C210S610000, C210S611000, C210S620000, C210S630000

Reexamination Certificate

active

07431839

ABSTRACT:
The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient rich humus material produced from the biologically mediated treatment process. The bioconversion process of the present invention results from low electron acceptor concentrations and high quantities of microorganisms in a diverse microbial community.

REFERENCES:
patent: 3964998 (1976-06-01), Barnard
patent: 4179374 (1979-12-01), Savage et al.
patent: 4292328 (1981-09-01), Coulthard et al.
patent: 4487697 (1984-12-01), Bóhnke et al.
patent: 4540666 (1985-09-01), Nukina et al.
patent: 4721569 (1988-01-01), Northrop
patent: 4780208 (1988-10-01), Bóhnke et al.
patent: 5078882 (1992-01-01), Northrop
patent: 5248422 (1993-09-01), Neu
patent: 5338452 (1994-08-01), Pidaparti
patent: 5447633 (1995-09-01), Matsche et al.
patent: 5472472 (1995-12-01), Northrop
patent: 5506096 (1996-04-01), Helmo
patent: 5538529 (1996-07-01), Northrop
patent: 5601719 (1997-02-01), Hawkins et al.
patent: 5603744 (1997-02-01), Kuerner
patent: 5700370 (1997-12-01), Helmo
patent: 5733454 (1998-03-01), Cummings
patent: 5755852 (1998-05-01), Northrop
patent: 5783081 (1998-07-01), Gaddy
patent: 5906746 (1999-05-01), Helmo et al.
patent: 6013512 (2000-01-01), Turschmid et al.
patent: 6068774 (2000-05-01), Vandenbergh et al.
patent: 6086765 (2000-07-01), Edwards
patent: 6087159 (2000-07-01), Finn
patent: 6106716 (2000-08-01), Berkman
patent: 6190566 (2001-02-01), Kolber
patent: 6312599 (2001-11-01), Reid
patent: 6350350 (2002-02-01), Jensen et al.
patent: 6689274 (2004-02-01), Northrop et al.
patent: 2004/0007523 (2004-01-01), Gabon et al.
patent: 712 746 (1999-11-01), None
patent: 1 364 915 (2003-11-01), None
patent: 1245434 (1971-09-01), None
patent: WO 90/10083 (1990-07-01), None
patent: WO 02/38508 (2002-05-01), None
patent: WO 2004/092079 (2004-10-01), None
Astrid A. Van de Graaf et al., “Autotrophic growth of anaerobic ammonium-oxidizing micro-organisms in a fluidized bed reactor,” Microbiology (UK), 142:2187-2196 (1996).
Metcalf & Eddy, “Wastewater Engineering—Treatment, Disposal, Reuse” (Third Edition) Tchobanoglous, George, et al., McGraw-Hill (1991), p. 512-518; and p. 726.
Metcalf & Eddy, “Wastewater Engineering—Treatment and Reuse” (4thEdition), Tchobanoglous, George et al., McGraw-Hill, Inc. (2003), pp. 623-627.
M. Fuerhacker et al., “Approach for a novel control strategy for simultaneous nitrification/denitrification in activated sludge reactors,” Water Research, 34 (9): p. 2499-2506 (Jun. 2000).
C. Collivignarelli et al., “Simultaneous nitrification-denitrification processes in activated sludge plants: Performance and applicability,” Water Science and Technology, 40 (4-5): p. 187-194 (Aug.-Sep. 1999).
Klangduen Pochana et al., “Study of factors affecting simultaneous nitrification and denitrification (SND),” Water Science and Technology, 39 (6): p. 61-68 (Mar. 1999).
Hong W. Zhao et al., “Controlling factors for simultaneous nitrification and denitrification in a two-stage intermittent aeration process treating domestic sewage,” Water Research, 33 (4): p. 961-970 (Mar. 1998).
Hyungseok Yoo et al., “Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrite in an intermittently-aerated reactor,” Water Research, 33 (1): p. 145-154 (Jan. 1999).
Bent Halling-Sorensen et al., “A model of nitrogen removal from waste water in a fixed bed reactor using simultaneous nitrification and denitrification (SND),” Ecological Modelling, 87 (1-3): p. 131-141 (1996).
Anders O. Wistrom et al., “Enhanced nutrient removal by limiting dissolved oxygen concentration in a continuously fed, intermittently decanted, activated sludge plant,” Environmental Technology, 17 (4): p. 371-380 (1996).
Elisabeth V. Munch et al., “Simultaneous nitrification and denitrification in bench-scale sequencing batch reactors,” Water Research, 30 (2): p. 277-284 (1996).
Eberhard Bock et al., “Nitrogen loss caused by denitrifying Nitrosomonas cells using ammonium or hydrogen as electron donors and nitrite as electron acceptor,” Archives of Microbiology, 163 (1): p. 16-20 (1995).
Chung-Min Liao et al., “Nitrification/denitrification in an intermittent aeration process for swine wastewater,” Journal of Environmental Science and Health Part B Pesticides Foods Contaminants and Agricultural Wastes, 29 (5): p. 1053-1078 (1994).
G. Bortone et al., “Nitrification and denitrification in activated-sludge plants for pig slurry and wastewater from cheese dairies,” Bioresoure Technology, 37 (3): p. 243-252 (1991).
F. Carta et al., “Aerobic purification of dairy wastewater in continuous regime; reactor with support,” Process Biochemistry, V34, N6-7 (SEP), p. 613-619 (1999).
F. Beline et al., “Factors affecting nitrogen transformations and related nitrous oxide emission from aerobically treated piggery slurry,” Journal of Agricultural Engineering Research, V73, N3 p. 235-243 (Jul. 1999).
K. Yoo et al., “Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification (SND) via nitrite in an intermittently-aerated reactor,” Water Research, V33, N1 p. 145-154 (Jan. 1999).
C. Helmer et al., “Simultaneous nitrification/denitrification in an aerobic biofilm system,” Water Science and Technology, V37, N4-5, p. 183-187 (1998).
S. Okabe et al., “Relationship between population dynamics of nitrifiers in biofilms and reactor performance at various C:N ratios,” Water Research, V30, N7 p. 1563-1572 (Jul. 1996).
JR Bicudo et al., “Intermittent aeration of pig slurry—farm scale experiments for carbon and nitrogen removal,” Water Science and Technology, V32, N12, p. 83-90 (1995).
Y. Watanabe et al., “Simultaneous removal of organic materials and nitrogen by micro-aerobic biofilms,” Water Science and Technology V31, N1, p. 195-203 (1995).
I. F. Svoboda et al., “Nitrogen removal from pig slurry by nitrification and denitrification,” American Society Agricultural Engineers Seventh International Symposium on Agric. & Food Processing Wastes p. 24 (Jun. 18-20, 1995).
H. Bennemann et al., “Simultaneous nitrification and denitrificaiton in a single step unit,” Conference Title: DECHEMA biotechnology conferences—Lectures at the 7th DECHEMA annual meeting of biotechnologists, Frankfurt am Main, Germany, p. 1011-1014 (May 30-31, 1989).
J. Dufay et al., “Simultaneous nitrification/denitrification in constructed wetlands,” Joint Conference on the Environment, p. 85-90 (Mar. 1988).
K. M. Ho et al., “The importance of simultaneous nitrification-denitrification in Biological Nutrient Removal activated Sludge Systems with low F/M bulking control,” Australian Conference on Biological Nutrient Removal from Wastewater, 1994; 2nd p. 365-374 (AWWA) (1995).
H. Hvidtfeldt Rasmussen et al., “Treatment of odorous nitrogen compounds in a bioscrubber comprising simultaneous nitrification and denitrification,” Symp. On Biological Waste Gas Cleaning, Heidelberg, Germany, (Mar. 9-11, 1994).
Hao Xiaodi, et al., “Removing nitrate and ammonium from drainage water by simulation of natural biological processes” Water Research v. 32 No. 3 p. 936-43 (Mar. 1998).
P. J. Hirl, “Wastewater treatment with zero dissolved oxygen,” 1998 National Conference on Environmental Engineering (Jun. 7-10, 1998).
Harald Horn., “Simultane Nitrifikation und Denitrifikation in einem hetero-/autotrophen Biofilm unter Berucksichtigung der Sauerstoffprofile” (English Abstract Enclosed—Simultaneous nitrification and denitrification in a hetero/autotrophic biofilm in concern to the oxygen gradient GWF (DasGas

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