Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-06-06
2006-06-06
Upton, Christopher (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S618000, C210S621000, C210S903000, C210S630000
Reexamination Certificate
active
07056438
ABSTRACT:
The wastewater treatment system includes at least one fluidized bed reactor, such as a vessel containing media to which biofilms may attach. The vessel has an inlet and an outlet adjacent a bottom, and an overflow outlet adjacent a top, of the vessel. An element for admitting wastewater into the vessel and for agitating wastewater therein with sufficient energy to scour biofilm from the media, and for admitting additional wastewater into the vessel following a predetermined time to a level sufficient to cause water and at least some of the scoured biofilm to exit via the overflow outlet. Wastewater is drainable through the bottom outlet after a predetermined time for permitting aeration of the media. These fill and drain cycles effect a “tidal” nitrification and denitrification of the wastewater, with, for example, ammonia being converted ultimately to nitrogen gas.
REFERENCES:
patent: 3563888 (1971-02-01), Klock
patent: 4008159 (1977-02-01), Besik
patent: 4009099 (1977-02-01), Jeris
patent: 4169050 (1979-09-01), Serfling et al.
patent: 4183809 (1980-01-01), Klapwijk et al.
patent: 4277342 (1981-07-01), Hayes et al.
patent: 4284508 (1981-08-01), Jewell
patent: 4384956 (1983-05-01), Mulder
patent: 4443337 (1984-04-01), Otani et al.
patent: 4482458 (1984-11-01), Rovel et al.
patent: 4620931 (1986-11-01), Hirata et al.
patent: 4735723 (1988-04-01), Mulder
patent: 4746435 (1988-05-01), Onishi et al.
patent: 4800021 (1989-01-01), Desbos
patent: 4895645 (1990-01-01), Zorich, Jr.
patent: 4921604 (1990-05-01), Moellenbeck
patent: 5078884 (1992-01-01), Mulder
patent: 5126050 (1992-06-01), Irvine et al.
patent: 5192442 (1993-03-01), Piccirillo et al.
patent: 5259959 (1993-11-01), Mulder
patent: 5447633 (1995-09-01), Matsche et al.
patent: 5487829 (1996-01-01), Safferman et al.
patent: 5518618 (1996-05-01), Mulder et al.
patent: 5565098 (1996-10-01), Vellinga
patent: 5618431 (1997-04-01), Kondo et al.
patent: 5750041 (1998-05-01), Hirane
patent: 5788842 (1998-08-01), Frisch
patent: 5863433 (1999-01-01), Behrends
patent: 5863435 (1999-01-01), Heijnen et al.
patent: 5906745 (1999-05-01), Eto
patent: 5948262 (1999-09-01), Todd et al.
patent: 5985149 (1999-11-01), Raetz et al.
patent: 6063273 (2000-05-01), Habets et al.
patent: 6090294 (2000-07-01), Teran et al.
patent: 6171480 (2001-01-01), Lee et al.
patent: 6183642 (2001-02-01), Heijnen et al.
patent: 6383390 (2002-05-01), Van Loosdrecht et al.
patent: 6447681 (2002-09-01), Carlberg et al.
patent: 6585886 (2003-07-01), Luehr
patent: 6645374 (2003-11-01), Cote et al.
patent: 6692642 (2004-02-01), Josse et al.
patent: 2002/0148779 (2002-10-01), Shieh et al.
patent: 2002/0185437 (2002-12-01), Haridas et al.
patent: 2003/0111412 (2003-06-01), Jeong et al.
patent: 2004/0000517 (2004-01-01), Austin et al.
patent: 1 579 623 (1980-11-01), None
patent: WO 95/17351 (1995-06-01), None
patent: WO 02/076893 (2002-10-01), None
Austin, David, “Final Report on The South Burlington, Vermont Advanced Ecologically Engineered System (AEES) for Wastewater Treatment,” U.S. Environmental Protection Agency, pps. i-M2, Mar. 4, 2000.
Sun et al., “Treatment of Agricultural Wastewater in a Combined Tidal Flow-Downflow Reed Bed System,” Water Science Technology, vol. 40, No. 3, pps. 139-146, 1999.
Von Felde, Katrin and Kunst, Sabine, “N- and Cod-Removal in Vertical-Flow Systems,” Water Science Technology, vol. 35, No. 5, pp. 79-85, Permagon Press, Oxford, 1997.
Alleman, James E., “The History of Fixed-Film Wastewater Treatment Systems,” pp. 18, retrieved on Jul. 14, 2004. Retrieved from the Internet: <URL:http://bridge.ecn.purdue.edu/˜alleman/w3-class/456/article/article-biofilmhistory.html>.
Lazarova, Valentina and Manem, Jacques, “Innovative Biofilm Treatment Technologies for Water and Wastewater Treatment,”Biofilms II: Process Analysis and Applications, pp. 159-206, 2000.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Dharma Living Systems, Inc.
Upton Christopher
LandOfFree
Flood and drain wastewater treatment system and associated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flood and drain wastewater treatment system and associated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flood and drain wastewater treatment system and associated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3639622