Supported biofilm apparatus

Details Supported biofilm apparatus Supported biofilm apparatus

2007-11-27

2007-11-27

Barry, Chester T. (Department: 1724)

Liquid purification or separation

With gas-liquid surface contact means

With separator

Reexamination Certificate

active

11203197

ABSTRACT:
A membrane supported biofilm reactor uses modules having fine, hollow fibers, for example, made from melt spun thermoplastic polymers treated after spinning to increase their permeability to oxygen, used, for example, in tows or formed into a fabric. In one module, one or more sheets of the fabric are potted into a module to enable oxygen containing gas to be supplied to the lumens of the hollow fibers. Various reactors and processes, for example to treat wastewater, using such modules are described. In one process, oxygen travels through fibers, optionally through an attached biofilm, to oxygenate surrounding water. Mechanical, chemical and biological methods, for example endogenous respiration, are used to control the thickness of the biofilm.

REFERENCES:
patent: 2458163 (1949-01-01), Hays
patent: 4126544 (1978-11-01), Baensch et al.
patent: 4181604 (1980-01-01), Onishi et al.
patent: 4328102 (1982-05-01), Bellhouse et al.
patent: 4416993 (1983-11-01), McKeown
patent: 4664681 (1987-05-01), Anazawa et al.
patent: 4746435 (1988-05-01), Onishi et al.
patent: 4883594 (1989-11-01), Sekoulov et al.
patent: 5015421 (1991-05-01), Messner
patent: 5034164 (1991-07-01), Semmens
patent: 5116506 (1992-05-01), Williamson et al.
patent: 5126050 (1992-06-01), Irvine et al.
patent: 5149649 (1992-09-01), Miyamori et al.
patent: 5238562 (1993-08-01), Rogut
patent: 5439736 (1995-08-01), Nomura
patent: 5482859 (1996-01-01), Biller
patent: 5486475 (1996-01-01), Kramer et al.
patent: 5518620 (1996-05-01), Eguchi et al.
patent: 5520812 (1996-05-01), Ryhiner et al.
patent: 5543039 (1996-08-01), Odegaard
patent: 5716689 (1998-02-01), Rogut
patent: 5945002 (1999-08-01), Leukes et al.
patent: 6001585 (1999-12-01), Gramer
patent: 6013511 (2000-01-01), Diels et al.
patent: 6183643 (2001-02-01), Goodley
patent: 6209855 (2001-04-01), Glassford
patent: 6241867 (2001-06-01), Mir
patent: 6309550 (2001-10-01), Iversen et al.
patent: 6354444 (2002-03-01), Mahendran et al.
patent: 6361695 (2002-03-01), Husain et al.
patent: 6387262 (2002-05-01), Rittmann et al.
patent: 6531062 (2003-03-01), Whitehill
patent: 6558549 (2003-05-01), Cote et al.
patent: 6592759 (2003-07-01), Rabie et al.
patent: 6685832 (2004-02-01), Mahendran et al.
patent: 2001/0037967 (2001-11-01), Rabie et al.
patent: 2002/0020666 (2002-02-01), Cote et al.
patent: 2003/0104192 (2003-06-01), Hester et al.
patent: 2004/0060442 (2004-04-01), Nakahara et al.
patent: 2004/0115782 (2004-06-01), Pasterek
patent: 1096976 (1981-03-01), None
patent: 2005959 (1990-06-01), None
patent: 2100002 (1994-02-01), None
patent: 2102156 (1994-07-01), None
patent: 2182915 (1997-02-01), None
patent: 2356316 (2000-08-01), None
patent: 2300719 (2001-09-01), None
patent: 3544382 (1987-06-01), None
patent: 4440464 (1990-06-01), None
patent: 0 049 954 (1982-04-01), None
patent: 54-21057 (1979-02-01), None
patent: WO87/03815 (1987-06-01), None
English language abstract of JP 54-21057.
Dr. Michael J. Semmens and Denise Hanus, “Studies of a Membrane Aerated Bioreactor for Wastewater Treatment”, Cranfield University, Jun. 1999.
Brindle et al., Nitrification and Oxygen Utilisation in a Membrane Aeration Bioreactor, Journal of Membrane Science, 1998.
Cote et al., “Bubble-free Aeration Using Membranes: Process Analysis”, Journal Water Pollution Control Federation, Nov. 1998.
Cote et al., “Bubble-free Aeration Using Membranes: Mass Transfer Analysis”, Journal of Membrane Science, 1989.
Yeh, Show-Jong and Charles R. Jenkins, “Pure Oxygen Fixed Film Reactor”, Journal of the Environmental Engineering Division, Aug. 1970, pp. 611-623.
Woolard, C.R., “The Advantages of Periodically Operated Biofilm Reactors for the Treatment of Highly Variable Wastewater”, Wat. Sci. Tech. vol. 35, No. 1, pp. 199-206, 1997.
Twarowska-Schmidt, Krystyna and Andrzej Wlochowicz, “Melt-spun Asymmetric Poly(4-methyl-1-pentene) Hollow Fibre Membranes”, Journal of Membrane Science 137 (1997) 55-61.
Yamagiwa et al., “Simultaneous Organic Carbon Removal and Nitrification by Biofilm Formed on Oxygen Enrichment Membrane”, Journal of Chemical Engineering of Japan, 27(1994) Oct. 638-643.
Casey et al., “Review of Membrane Aerated Biofilm Reactors”, Resources, Conservation and Recycling 27 (1999) 203-215.

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