Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-12-18
2007-12-18
Upton, Christopher (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S618000, C210S621000, C210S630000, C210S151000, C210S194000, C210S903000
Reexamination Certificate
active
10492495
ABSTRACT:
Method and apparatus (8) in which a biomass is carried on a substrate which is fluidised. The fluidised substrate has below it a lazer of distributor particles through which the fluidising medium passes prior to contact with the fluidised substrate and biomass associated therewith. The effect of the distributor layer is that the particles damp out excessive turbulence in the fluidising medium thus preventing undue turbulence of the medium within the fluidised layer. This has the advantage of controlling, to some extent, the thickness of the biofilm, which may be carried by the fluidised substrate particles. The particles may be recycles (1, 2, 5) through the distributor layer where the action of the distributor particles serve to strip exces biofilm from the substrate particles which latter are then returned to the fluidised bed.
REFERENCES:
patent: 3846289 (1974-11-01), Jeris
patent: 3956129 (1976-05-01), Jeris et al.
patent: 4009098 (1977-02-01), Jeris
patent: 4009099 (1977-02-01), Jeris
patent: 4009105 (1977-02-01), Jeris
patent: 4177144 (1979-12-01), Hickey et al.
patent: 4202774 (1980-05-01), Kos
patent: 4241021 (1980-12-01), Skrzec
patent: 4250033 (1981-02-01), Hickey et al.
patent: 4322296 (1982-03-01), Fan et al.
patent: 4464262 (1984-08-01), Owens et al.
patent: 4490258 (1984-12-01), Heijnen et al.
patent: 4618418 (1986-10-01), Heijnen et al.
patent: 4702891 (1987-10-01), Li et al.
patent: 4707252 (1987-11-01), Durot et al.
patent: 4762612 (1988-08-01), Yoda et al.
patent: 4800021 (1989-01-01), Desbos
patent: 4869815 (1989-09-01), Bernard et al.
patent: 4933149 (1990-06-01), Rhee et al.
patent: 5019268 (1991-05-01), Rogalla
patent: 5228997 (1993-07-01), Martin et al.
patent: 5372712 (1994-12-01), Petit
patent: 5584996 (1996-12-01), Petit
patent: 5705057 (1998-01-01), Hoffa
patent: 5747311 (1998-05-01), Jewell
patent: 5849194 (1998-12-01), Yamasaki et al.
patent: 5895576 (1999-04-01), Yamasaki et al.
patent: 5965016 (1999-10-01), Suchowski et al.
patent: 5976365 (1999-11-01), Petit
patent: 5985149 (1999-11-01), Raetz et al.
patent: 6572773 (2003-06-01), Dempsey
patent: 44 42 126 (1996-05-01), None
patent: 0 007 783 (1979-07-01), None
patent: 0 861 808 (1998-09-01), None
patent: 2 344 801 (1977-10-01), None
patent: 780 406 (1957-07-01), None
patent: 1 520 895 (1978-08-01), None
patent: 2 149 683 (1985-06-01), None
patent: 58 199038 (1983-11-01), None
Asif, Kalogerakis and Behie, “Distributor Effects in Liquid Fluidized Beds of Low-Density Particles”, AlChE Journal, Dec. 1991, vol. 37, No. 12, pp. 1825-1832.
Otton, Hihn, Béteau, Delpech and Chéruy, “Axial dispersion of liquid in fluidised bed with external recycling: two dynamic modelling approaches with a view to control”, Biochemical Engineering Journal, vol. 2 (2000), pp. 129-136.
Finette, Mao, and Hearn, “Studies on the expansion characteristics of fluidised beds with silica-based adsorbents used in protein purification”, Journal of Chromatography A. 743 (1996), pp. 57-73..
Koh, Wang and Wankat, “Ion Exchange of Phenylalanine in Fluidized/Expanded Beds”, Ind. Eng. Chem. Res., 1995, vol. 34, pp. 2700-2711.
Kkumar, Kusakabe and Fan, “Heat Transfer in Three-Phase Fluidized Beds Containing Low-Density Particles,” Chemical Engineering Science, vol. 48, No. 13, 1993, pp. 2407-2418.
Asif, Kalogerakis and Behie, “Hydrodynamics of Liquid Fluidized Beds Including the Distributor Region,” Chemical Engineering Science, vol. 47, No. 15/16, 1992, pp. 4155-4166.
Sosa, Ochoa and Perotti, “Modeling of direct recovery of lactic acid from whole broths by ion exchange adsorption,” Bioseparation, vol. 9, 2001, pp. 283-289.
Kiared, Larachi, Cassandello and Chaouki, “Flow Structure of the Solids in a Three-Dimensional Liquid Fluidized Bed,” Ind. Eng. Chem. Res., vol. 36, 1997, pp. 4695-4704.
Nicolella, Felice and Rovatti, “An Experimental Model of Biofilm Detachment in Liquid Fluidized Bed Biological Reactors,” Biotechnology and Bioengineering, vol. 51, 1996, pp. 713-719.
Sutton and Mishra, “Activated Carbon Based Biological Fluidized Beds for Contaminated Water and Wastewater Treatment: A State-of-the-art Review”, Wat. Sci. Tech., vol. 29, No. 10-11 (1994), pp. 309-317.
Nicolella, Van Loosdrecht and Heunen, “Wastewater treatment with particulate biofilm reactors”, Journal of Biotechnology, vol. 80 (2000), pp. 1-33.
Cooper and Wheeldon, “Complete treatment of sewage in a two-fluidised bed system”, Biological Fluidised Bed Treatment of Water and Wastewater © 1981, Market Cross House, West Sussex, England, Chapter 7.
Coulom, Longeaux, Badard, and Sibony, “A Fluidized-Bed Reactor: The Biolift Process”, Wat. Sci. Tech., vol. 29, No. 10-11 (1994), pp. 329-338.
Denae, Uzman, Tanaka, and Dunn, “Modeling of Experiments on Biofilm Penetration Effects in a Fluidized Bed Nitrification Reactor”, Biotechnology and Bioengineering, vol. XXV (1983), pp. 1841-1861.
International Search Report for PCT/GB02/04640 completed Jan. 31, 2003.
Advanced Bioprocess Development Limited
Alston & Bird LLP
Upton Christopher
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