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comprising treatment of the recirculated sludge
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C02F3/1221
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C02
Water treatment
C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F3/00
Biological treatment of water, waste water, or sewage
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C02F3/1221
comprising treatment of the recirculated sludge
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Patents Grants
last 30 patents
Information
Patent Grant
Wastewater treatment plant and related method with biological treat...
Patent number
11,891,319
Issue date
Feb 6, 2024
Robert Sinclair
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Septic system with improved processing efficiency, and method of op...
Patent number
11,731,890
Issue date
Aug 22, 2023
Todd Reynolds
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Method for wastewater treatment through microorganism biochemical p...
Patent number
11,724,948
Issue date
Aug 15, 2023
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Wastewater treatment apparatus to achieve class B biosolids using c...
Patent number
11,485,659
Issue date
Nov 1, 2022
BCR Environmental Corporation
Frederick P. Mussari
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Recovery system of composite powder carrier in HPB municipal wastew...
Patent number
11,472,725
Issue date
Oct 18, 2022
Tongji University
Xiaohu Dai
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Continuous flow wastewater treatment system
Patent number
11,390,546
Issue date
Jul 19, 2022
Aecom
Beverley Stinson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
High solids dissolved air flotation system and methods
Patent number
11,352,275
Issue date
Jun 7, 2022
Evoqua Water Technologies LLC
Argun Olcayto Erdogan
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Phosphorus release reactor for water treatment
Patent number
11,345,624
Issue date
May 31, 2022
Des Moines Metropolitan Wastewater Reclamation Authority
Patrick Anderson Brown
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Sewage treatment system
Patent number
11,325,853
Issue date
May 10, 2022
KYOGYOKU ENGINEERING CO., LTD
Saburou Matsui
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Continuous flow wastewater treatment system
Patent number
11,242,272
Issue date
Feb 8, 2022
Aecom
Beverley Stinson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for the treatment of sludge
Patent number
11,198,632
Issue date
Dec 14, 2021
The University of Queensland
Qilin Wang
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method for efficiently producing PHA
Patent number
11,155,483
Issue date
Oct 26, 2021
NUTRITION & HEALTH RESEARCH INSTITUTE, COFCO CORPORATION
Yi Tong
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Systems and methods for treating wastewater and providing class A s...
Patent number
11,155,484
Issue date
Oct 26, 2021
Advanced Biological Services, Inc.
Robert Whiteman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Multi-parameter enhancement of membrane bioreactor process efficien...
Patent number
11,117,821
Issue date
Sep 14, 2021
Grundfos Holding a/s
Dominik Marek Dominiak
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method of operating an upflow backwash filter
Patent number
11,097,966
Issue date
Aug 24, 2021
John H. Reid
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
System and method for wastewater treatment through microorganism bi...
Patent number
11,046,603
Issue date
Jun 29, 2021
Akiyoshi Ohki
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Phosphorus release reactor for water treatment
Patent number
10,968,127
Issue date
Apr 6, 2021
Des Moines Metropolitan Wastewater Reclamation Authority
Patrick Anderson Brown
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Tubular elements for cake filtration and method of providing a filt...
Patent number
10,919,793
Issue date
Feb 16, 2021
Grundfos Holding a/s
Tom Jæger
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Polyhydroxyalkanoate production during wastewater treatment
Patent number
10,807,893
Issue date
Oct 20, 2020
Hsinying Liu
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Continuous process for the treatment of wastewater
Patent number
10,807,894
Issue date
Oct 20, 2020
HaskoningDHV Nederland B.V.
Frans Wierd Horjus
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Biological contact and dissolved air flotation treatment of storm w...
Patent number
10,800,670
Issue date
Oct 13, 2020
Evoqua Water Technologies LLC
Nathan Antonneau
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
System and method for controlled gas-dispersion-return-sludge-based...
Patent number
10,689,278
Issue date
Jun 23, 2020
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
System for wastewater treatment through controlling microorganism p...
Patent number
10,689,279
Issue date
Jun 23, 2020
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Wastewater treatment apparatus to achieve class B biosolids using c...
Patent number
10,689,274
Issue date
Jun 23, 2020
BCR Environmental Corporation
Frederick P. Mussari
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process and device for treating wastewaters by oxidation
Patent number
10,654,734
Issue date
May 19, 2020
SUEZ INTERNATIONAL
Sylvie Baig
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Apparatus for water treatment using a physical separator
Patent number
10,464,832
Issue date
Nov 5, 2019
D.C. Water & Sewer Authority
Sudhir N. Murthy
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System and method for wastewater treatment through controlling puri...
Patent number
10,457,582
Issue date
Oct 29, 2019
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for water treatment using screens
Patent number
10,287,195
Issue date
May 14, 2019
District of Columbia Water and Sewer Authority
Sudhir N. Murthy
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Sludge treatment system and sludge treatment method
Patent number
10,259,731
Issue date
Apr 16, 2019
Mitsubishi Electric Corporation
Tokiko Yamauchi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for operating an upflow continuous backwash filter
Patent number
10,160,678
Issue date
Dec 25, 2018
John H. Reid
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
ATOMIZER-BASED SYSTEM FOR WASTEWATER TREATMENT THROUGH MICROORGANIS...
Publication number
20230373830
Publication date
Nov 23, 2023
Akiyoshi Ohki
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
WASTEWATER TREATMENT PLANT AND RELATED METHOD WITH BIOLOGICAL TREAT...
Publication number
20220356092
Publication date
Nov 10, 2022
ROBERT SINCLAIR
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
System and Method for Treating Wastewater That Includes Biosorption...
Publication number
20220194831
Publication date
Jun 23, 2022
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
Argun O. Erdogan
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SEPTIC SYSTEM WITH IMPROVED PROCESSING EFFICIENCY, AND METHOD OF OP...
Publication number
20210387880
Publication date
Dec 16, 2021
Todd Reynolds
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD FOR WASTEWATER TREATMENT THROUGH MICROORGANISM BIOCHEMICAL P...
Publication number
20210246056
Publication date
Aug 12, 2021
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
RECOVERY SYSTEM OF COMPOSITE POWDER CARRIER IN HPB MUNICIPAL WASTEW...
Publication number
20210130205
Publication date
May 6, 2021
Tongji University
Xiaohu DAI
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Application
METHOD OF OPERATING AN UPFLOW BACKWASH FILTER
Publication number
20210061689
Publication date
Mar 4, 2021
John H. Reid
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
High Solids Dissolved Air Flotation System and Methods
Publication number
20210009451
Publication date
Jan 14, 2021
Evoqua Water Technologies LLC
Argun Olcayto Erdogan
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESS FOR THE TREATMENT OF SLUDGE
Publication number
20200331788
Publication date
Oct 22, 2020
THE UNIVERSITY OF QUEENSLAND
Qilin WANG
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SYSTEM AND METHOD FOR WASTEWATER TREATMENT THROUGH MICROORGANISM BI...
Publication number
20200270155
Publication date
Aug 27, 2020
Akiyoshi Ohki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SYSTEMS AND METHODS FOR UPGRADING CONVENTIONAL ACTIVATED SLUDGE PLANTS
Publication number
20200131066
Publication date
Apr 30, 2020
GENERAL ELECTRIC COMPANY
Pierre Lucien COTE
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SYSTEM FOR WASTEWATER TREATMENT THROUGH CONTROLLING MICROORGANISM P...
Publication number
20200062625
Publication date
Feb 27, 2020
Akiyoshi Ohki
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
SYSTEM AND METHOD FOR CONTROLLED GAS-DISPERSION-RETURN-SLUDGE-BASED...
Publication number
20200055757
Publication date
Feb 20, 2020
Akiyoshi Ohki
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
CONTINUOUS FLOW WASTEWATER TREATMENT SYSTEM
Publication number
20200002201
Publication date
Jan 2, 2020
AECOM
Beverley Stinson
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Biological Contact and Dissolved Air Flotation Treatment of Storm W...
Publication number
20190210891
Publication date
Jul 11, 2019
Nathan Antonneau
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESS AND DEVICE FOR TREATING WASTEWATERS BY OXIDATION
Publication number
20190023597
Publication date
Jan 24, 2019
SUEZ INTERNATIONAL
Sylvie BAIG
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
WASTEWATER TREATMENT PROCESS AND PLANT
Publication number
20190023593
Publication date
Jan 24, 2019
SUEZ INTERNATIONAL
Adriana GONZALEZ OSPINA
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
POLYHYDROXYALKANOATE PRODUCTION DURING WASTEWATER TREATMENT
Publication number
20180273407
Publication date
Sep 27, 2018
HSINYING LIU
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Application
CONTINUOUS PROCESS FOR THE TREATMENT OF WASTEWATER
Publication number
20180230034
Publication date
Aug 16, 2018
HaskoningDHV Nederland B.V.
Frans Wierd HORJUS
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
WATER TREATMENT SYSTEM AND WATER TREATMENT PROCESS
Publication number
20180072597
Publication date
Mar 15, 2018
Mitsubishi Electric Corporation
EIJI IMAMURA
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHOD AND INSTALLATION FOR PRE-TREATMENT EMPLOYING A FILTER CAKE
Publication number
20170368485
Publication date
Dec 28, 2017
GRUNDFOS HOLDING A/S
Tom Jæger
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
TUBULAR ELEMENTS FOR CAKE FILTRATION AND METHOD OF PROVIDING A FILT...
Publication number
20170355629
Publication date
Dec 14, 2017
GRUNDFOS HOLDING A/S
Tom Jæger
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
NOVEL FACILITY FOR TREATING WASTE WATER
Publication number
20170327394
Publication date
Nov 16, 2017
SUEZ INTERNATIONAL
Gildas MANIC
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESS FOR OPERATING AN UPFLOW CONTINUOUS BACKWASH FILTER
Publication number
20170240446
Publication date
Aug 24, 2017
John H. Reid
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PROCESS FOR PRODUCING A MICROBIAL STORAGE COMPOUND
Publication number
20170198314
Publication date
Jul 13, 2017
PAQUES I.P. B.V.
Hendrik DIJKMAN
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Application
RECYCLING TREATMENT SYSTEM FOR TANNERY WASTEWATER
Publication number
20170107132
Publication date
Apr 20, 2017
New Century Membrane Technology Co., Ltd.
Chi-Chang Kuo
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SYSTEM, METHOD AND APPARATUS FOR WATER TREATMENT USING A PHYSICAL S...
Publication number
20160272521
Publication date
Sep 22, 2016
D.C. Water & Sewer Authority
Sudhir N. Murthy
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Wastewater Treatment Method, System and Pollutant Decomposition Act...
Publication number
20160272523
Publication date
Sep 22, 2016
Ryozo Irie
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
RECYCLING ACTIVATED SLUDGE BY HYDRODYNAMIC SEPERATOR (HDS) TO ENABL...
Publication number
20150175454
Publication date
Jun 25, 2015
Palo Alto Research Center Incorporated
Huangpin B. Hsieh
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
UPFLOW CONTINUOUS BACKWASH FILTER
Publication number
20150090659
Publication date
Apr 2, 2015
John H. Reid
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE