Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-10-10
2006-10-10
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S622000, C210S631000, C210S797000, C210S805000, C210S791000
Reexamination Certificate
active
07118674
ABSTRACT:
A membrane filtration system comprising one or more submerged ultrafiltration or microfiltration membrane assemblies at ambient pressure, each membrane assembly positioned 100–240 mm from a nearest wall, baffle, or adjacent membrane assembly and no more than 1 meter above a floor and at least 150 mm below the liquid level. Mixed liquor is discharged underneath each membrane assembly to create a vertical flow velocity in a range of 1–8 mm/second along an entire length of the membrane assembly. In a sequenced batch reactor system, a coarse bubble air diffuser for scouring each membrane assembly is supplied with air only during the backwash cycle of the filtration system and not during the filtration cycle. In a membrane bioreactor system, the biological treatment section is physically separated from the filtration section and fine bubble air diffusion is used in the biological treatment section.
REFERENCES:
patent: 3472765 (1969-10-01), Budd et al.
patent: 3536611 (1970-10-01), De Filippi et al.
patent: 3819056 (1974-06-01), Aitken et al.
patent: 3957648 (1976-05-01), Roget et al.
patent: 4414113 (1983-11-01), LaTerra
patent: 4468327 (1984-08-01), Brown et al.
patent: 4605500 (1986-08-01), Takemura et al.
patent: 4647377 (1987-03-01), Miura
patent: 4715953 (1987-12-01), Leonard
patent: 4749494 (1988-06-01), Tomoyasu et al.
patent: 4886601 (1989-12-01), Iwatsuka et al.
patent: 5192456 (1993-03-01), Ishida et al.
patent: 5248424 (1993-09-01), Cote et al.
patent: 5254253 (1993-10-01), Behmann
patent: 5494577 (1996-02-01), Rekers
patent: 5639373 (1997-06-01), Mahendran et al.
patent: 5910250 (1999-06-01), Mahendran et al.
patent: 5944997 (1999-08-01), Pedersen et al.
patent: 6110374 (2000-08-01), Hughes
patent: 6126819 (2000-10-01), Heine et al.
patent: 6156200 (2000-12-01), Zha et al.
patent: 6193890 (2001-02-01), Pedersen et al.
patent: 6245239 (2001-06-01), Cote et al.
patent: 6303035 (2001-10-01), Cote et al.
patent: 6319411 (2001-11-01), Cote
patent: 6361695 (2002-03-01), Husain et al.
patent: 6375848 (2002-04-01), Cote et al.
patent: 6524481 (2003-02-01), Zha et al.
patent: 6555005 (2003-04-01), Zha et al.
patent: 6613222 (2003-09-01), Mikkelson et al.
patent: 6656356 (2003-12-01), Gungerich et al.
patent: 6682652 (2004-01-01), Mahendran et al.
patent: 6743362 (2004-06-01), Porteous et al.
patent: 2002/0117444 (2002-08-01), Mikkelson et al.
patent: 2003/0159988 (2003-08-01), Daigger et al.
patent: 2004/0035779 (2004-02-01), Vossenkaul et al.
patent: 2004/0035786 (2004-02-01), Goldsmith
patent: 2004/0217053 (2004-11-01), Zha et al.
patent: 1166243 (1969-10-01), None
patent: WO03/086987 (2003-10-01), None
The technology: submerged membrane filtration; PURON AG, Aachen, Germany; 6 pages; as posted on http://www.puron.de/en.1200—e—druck.html.
ZenoGem® Membrane Bioreactor Process Description; ZENON Environmental Inc. 2 pages; as posted on http://www.zenonenv.com/markets/zenogem—process—mun.shtml.
Aquamb Process; Aqua-Aerobic Systems, Inc.; Rockford, Illinois; 2 pages; as posted on http://www.aqua-aerobic.com/mpprocess.html.
Aqua MSBR Modified Sequencing Batch Reactor; Aqua-Aerobic Systems, Inc., Rockford, Illinois; 4 pages; Bulletin #M102 Feb 2004.
AquaSBR® Sequencing Batch Reactor; Aqua-Aerobic Systems, Inc.; Rockford, Illinois, 6 pages; Bulletin #950C Jan. 2002.
Kang I-J et al.; “Characteristics of microfiltration membranes in a membrane coupled sequencing batch reactor system”; Article; Mar. 5, 2003; pp. 1192-1197; vol. 37, No. 5; Water Research, Elsevier, Amsterdam.
European Search Report with written opinion for EP Application No. 05 25 6249 dated Jan. 23, 2006.
Byrne Roger J.
Dimitriou Michael A.
George Kenneth P.
Koch, III John E.
Krall Joseph G.
Barry Chester T.
ITT Manufacturing Enterprises Inc.
RatnerPrestia
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