Energy-efficient biological treatment system with filtration membrane

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

7179370

APP PUB NO

20060213831A1

SERIAL NO

11439318

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ITT MANUFACTURING ENTERPRISES, INC.WILMINGTON, DE1156

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byrne, Roger J Mequon, WI 3 33
Dimitriou, Michael A Richmond, VA 4 42
George, Kenneth P Grafton, WI 3 33
Koch, III John E Wauwatosa, WI 2 14
Krall, Joseph G Grafton, WI 7 46
Rice, David Port Washington, WI 31 425
Yogendran, Velupillai Warwickshire, GB 3 29

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Kabushiki Kaisha Ito Tekkousho (1)
4647377 Filter apparatus 93 1984
 
Ecodyne Corporation (1)
4414113 Liquid purification using reverse osmosis hollow fibers 86 1982
 
Koch Membrane Systems GmbH (1)
2004/0035,779 Membrane filter for water treatment 14 2003
 
X-FLOW B.V. (1)
5494577 Membrane bioreactor with gas lift system 19 1994
 
Zenon Environmental, Inc. (4)
5254253 Modular shipboard membrane bioreactor system for combined wastewater streams 94 1992
5248424 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate 162 1992
5944997 System for maintaining a clean skein of hollow fibers while filtering suspended solids 128 1998
6361695 Shipboard wastewater treatment system 76 2000
 
ZENON TECHNOLOGY PARTNERSHIP (9)
5639373 Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate 162 1995
5910250 Baffle for conversion of fine bubbles to coarse while filtering with a vertical skein of hollow fibers 114 1997
6193890 System for maintaining a clean skein of hollow fibers while filtering suspended solids 109 1999
6319411 Method of maintaining clean vertical skeins of hollow fiber membranes and system therefor 65 1999
6303035 Immersed membrane filtration process 67 1999
6375848 Water filtration using immersed membranes 76 1999
6245239 Cyclic aeration system for submerged membrane modules 101 2000
6656356 Aerated immersed membrane system 70 2001
6682652 Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes 61 2002
 
Mitsui Sekiyu Kagaku Kogyo Kabushiki Kaisha (1)
4749494 Treatment of waste water by the activated sludge process 28 1987
 
ROCHEM ULTRAFILTRATIONS SYSTEME GESELLSCHAFT FUR ABWASSERREINIGUNG MBH (1)
6126819 Apparatus for the treatment of liquids contaminated by foreign substances 53 1998
 
Baxter Travenol Laboratories, Inc. (1)
4715953 Hollow fiber separation device manifold 23 1983
 
EVOQUA WATER TECHNOLOGIES LLC (3)
6156200 Gas-scrubbed hollow fiber membrane module 109 1998
6555005 Scouring method 84 1999
6524481 Apparatus and method for cleaning membrane filtration modules 78 2001
 
KUBOTA CORPORATION (1)
5192456 Apparatus for treating activated sludge and method of cleaning it 119 1992
 
Aqua-Aerobic Systems, Inc. (2)
6110374 Treatment process for removing microbial contaminants suspended in wastewater 15 1998
6613222 Apparatus for the treatment of waste water 42 2001
 
LIFESHIELD SCIENCES LLC (1)
2004/0158,312 Braided endoluminal device having tapered filaments 22 2003
 
CENEPRINT PTY. LTD., C/O QUEST INVESTMENTS LIMITED (1)
4468327 Effluent treatment 17 1983
 
MITSUBISHI RAYON CO., LTD. (1)
4605500 Hollow-fiber filter module 30 1985
 
Japan Organo Co., Ltd. (1)
4886601 Column filter using bundles of long fibers 69 1989
 
OVIVO LUXEMBOURG S.A.R.L. (1)
6743362 Sewage treatment process 50 2002
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
THERAPEUTIC PROTEINS INTERNATIONAL, LLC (4)
* 9101857 Gas scrubbed perfusion filter 0 2011
* 2011/0201,050 Gas Scrubbed Perfusion Filter 3 2011
* 8685245 Concentrator filter 0 2011
* 2011/0290,745 Concentrator Filter 0 2011
 
ZHEJIANG OMEX ENVIRONMENTAL ENGINEERING CO., LTD. (2)
7850853 Floating porous hollow fiber membrane bundle 0 2005
* 2009/0026,140 Floating Porous Hollow Fiber Membrane Bundle 2 2005
 
EVOQUA WATER TECHNOLOGIES LLC (3)
7569148 Continuous membrane filtration and solids reduction 11 2007
7931808 Sequencing batch reactor with continuous membrane filtration and solids reduction 1 2009
* 2009/0261,027 SEQUENCING BATCH REACTOR WITH CONTINUOUS MEMBRANE FILTRATION AND SOLIDS REDUCTION 5 2009
 
POROUS MEDIA CORPORATION (2)
7875176 Membrane module for fluid filtration 0 2009
* 2010/0224,540 Membrane Module for Fluid Filtration 1 2009
 
SIEMENS ENERGY, INC. (1)
* 2011/0174,746 Water Treatment Methods 1 2009
 
Zenon Environmental, Inc. (1)
* 2005/0115,899 Membrane bioreactor having single header membrane module 45 2004
 
ZENON TECHNOLOGY PARTNERSHIP (4)
8357299 Process control for an immersed membrane system 0 2006
* 2007/0039,888 Process control for an immersed membrane system 32 2006
7988855 Membrane bioreactor having single header membrane module 1 2007
* 2011/0042,312 PROCESS CONTROL FOR AN IMMERSED MEMBRANE SYSTEM 1 2010
* Cited By Examiner

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 20, 2018
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