Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-11-20
2007-11-20
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S612000, C210S615000, C210S631000, C210S259000, C071S010000
Reexamination Certificate
active
10976079
ABSTRACT:
An apparatus for the fixed-film anaerobic digestion of flushed livestock manure includes an enclosed digester tank (fixed or flexible roof), internal media for biofilm development, a biogas collection and flare system, various pumps, and hydraulic control systems. The preferred media has substantially vertically-oriented, uninterrupted channels to promote enhanced bacterial attachment and biofilm development. The immobilization of microbial biomass within the reactor as a biofilm allows effective treatment of the wastewater at ambient and higher temperatures, as well as reasonable hydraulic retention times. The composition and concentration of bacterial groups in the biofilm developed on the media in the fixed-film digester result in a significantly enhanced anaerobic degradation process. This novel fixed-film digester design expands the potential application of anaerobic digestion to dilute livestock waste with significant levels of suspended solids. This holistic manure treatment system not only stabilizes the wastewater but also produces energy (biogas), controls odors, reduces pathogens, minimizes environmental impact from waste emissions, and maximizes fertilizer and water recovery for reuse.
REFERENCES:
patent: 2590964 (1952-04-01), Halvorson
patent: 3329271 (1967-07-01), Ward et al.
patent: 3402103 (1968-09-01), Herman et al.
patent: 3589518 (1971-06-01), Brebion et al.
patent: 3617541 (1971-11-01), Pan
patent: 3700590 (1972-10-01), Burton
patent: 3846289 (1974-11-01), Jeris et al.
patent: 3956129 (1976-05-01), Jeris et al.
patent: 4009099 (1977-02-01), Jeris
patent: 4026082 (1977-05-01), Crofoot
patent: 4183809 (1980-01-01), Klapwijk et al.
patent: 4284508 (1981-08-01), Jewell
patent: 4366059 (1982-12-01), Witt et al.
patent: 4530762 (1985-07-01), Love
patent: 4561974 (1985-12-01), Bernard et al.
patent: 4599168 (1986-07-01), Benjes et al.
patent: 4604361 (1986-08-01), Peters
patent: 4627917 (1986-12-01), Morper
patent: 4632758 (1986-12-01), Whittle
patent: 4780198 (1988-10-01), Crawford et al.
patent: 4818404 (1989-04-01), McDowell
patent: 4940540 (1990-07-01), McDowell
patent: 5096579 (1992-03-01), Jordan et al.
patent: 5205935 (1993-04-01), Ruocco
patent: 5228995 (1993-07-01), Stover
patent: 5232585 (1993-08-01), Kanow
patent: 5389248 (1995-02-01), Pare et al.
patent: 5419833 (1995-05-01), Ely et al.
patent: 5500112 (1996-03-01), McDonald
patent: 5518620 (1996-05-01), Eguchi et al.
patent: 5560819 (1996-10-01), Taguchi
patent: 5630942 (1997-05-01), Steiner
patent: 6126816 (2000-10-01), Ruiz, Jr.
patent: 6183643 (2001-02-01), Goodley
patent: 6217759 (2001-04-01), Kolesnikov et al.
patent: 6254775 (2001-07-01), McElvaney
patent: 6291232 (2001-09-01), Miller, III
patent: 6299774 (2001-10-01), Ainsworth et al.
patent: 6398959 (2002-06-01), Teran et al.
patent: 6406630 (2002-06-01), Henry
patent: 6409788 (2002-06-01), Sower
patent: 2552298 (1985-03-01), None
patent: 61-67474 (1987-04-01), None
patent: 1-215397 (1989-08-01), None
Mills, B., “Digester gobbles up odors”DairyToday, Jan. 2000, pp. 17-18.
Wilkie, A. et al., “Start-up of anaerobic filters containing different support materials using pig slurry supernatant”Biotechnology Letters, 1984, vol. 6, No. 11, pp. 735-740.
Wilkie, A. et al., “Pilot-scale digestion of pig slurry supernatant using an upflow anaerobic filter”Environmental Technology Letters, vol. 7, pp. 65-76, 1986.
Wilkie, A. et al., “The Development of the Anaeorbic Fixed-Bed Reactor and its Application to the Treatment of Agricultural and Industrial Wastes”International Biosystems, 1989, pp. 183-226.
Wilkie et al., “Anaerobic digestion for odor control”Nuisance Concerns in Animal Manure Management: Odors and Flies, 1995, pp. 56-62.
“Show Me Results2Success Stories from the Florida Energy Office”Florida Department of Community Affairs, 1998-99.
Wilkie, A. et al., “Anaerobic digestion: holistic bioprocessing of animal manures”Proceedings of the Animal Residuals Management Conference, 2000, pp. 1-12.
Wilkie, A. et al., “Reducing dairy manure odor and producing energy”Biocycle Journal of Compositing&Organics Recycling, 2000, pp. 48-50.
Hunter, Ed, “Sweet smell of success: New UF system helps dairy farms reduce odors,”UF Newshttp://www.napa.ufl.edu/2000news/sweetsme.htm, 2000.
Prince Fred G.
Saliwanchik Lloyd & Saliwanchik
University of Florida Research Foundation Inc.
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