ClassID:

86316

C02F3/00 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage

Sub-classes:
Recent Application in this class:
#1
20260049015
2026-02-19

TAIL WATER TREATMENT AND RECYCLING SYSTEM FOR AQUACULTURE

#2
20250368558
2025-12-04

SYSTEMS AND METHODS FOR PROCESSING ENGINE WASH EFFLUENT

#3
20250197266
2025-06-19

ALTERNATIVE DIRECT POTABLE REUSE TRAIN

#4
20250091107
2025-03-20

Compositions and Methods for Cleaning Contaminated Solids and Liquids

#5
20240331887
2024-10-03

Device for treating uranium tailings with microorganism

#6
20240279092
2024-08-22

SYSTEM AND METHOD FOR ANALYZING AND USING SEPTIC SYSTEM DATA

#7
20240174536
2024-05-30

ENHANCED PLUME SPREADING

#8
20240051846
2024-02-15

HEAT EXCHANGER CAPABLE OF COOLING COOLANT OF EXTERNAL PLANT AND SEWAGE TREATMENT DEVICE COMPRISING SAME

#9
20230406744
2023-12-21

METHOD FOR SIMULTANEOUSLY TREATING HIGH CONCENTRATION OF SULFIDE AND ORGANIC COMPOSITION CONTAINED IN WASTE LIQUID

#10
20230371478
2023-11-23

Benthonic animal isolation frame and method for studying aquatic ecosystem by using same

#11
20230330727
2023-10-19

Compositions and methods for cleaning contaminated solids and liquids

#12
20220331759
2022-10-20

Reactor arrangement comprising a means for rotating and/or oscillating a transformation device and a method of using such reactor arrangement

#13
20220306506
2022-09-29

Method for treating production wastewater from the preparation of propylene oxide by co-oxidation

#14
20220259087
2022-08-18

Domestic sewage treatment system

#15
20220242750
2022-08-04

PHOTOVOLTAIC DEVICE WITH THERMAL MANAGEMENT

#16
20220213464
2022-07-07

Hierarchical magnetic nanoparticle-enzyme mesoporous assemblies embedded in macroporous scaffolds

#17
20220041484
2022-02-10

Built-in micro-interface papermaking wastewater treatment system and wastewater treatment method thereof

#18
20210370366
2021-12-02

Thermal in situ sustainable remediation system and method for groundwater and soil restoration

#19
20210162476
2021-06-03

Compositions and methods for cleaning contaminated solids and liquids

#20
20210060521
2021-03-04

Water Purifying Agent and Method for Making It

#21
20210047810
2021-02-18

PORTABLE DRINKING WATER GENERATOR

#22
20210047630
2021-02-18

Enzyme forming mesoporous assemblies embedded in macroporous scaffolds

#23
20200361798
2020-11-19

METHOD AND APPARATUS TO INCREASE WASTEWATER BIOREACTOR PROCESSING CAPACITY WHILE REDUCING GREENHOUSE GAS EMISSIONS

#24
20200354244
2020-11-12

Dioxane-degrading bacteria-immobilized carrier, biodegradation treatment method, and biodegradation treatment apparatus

#25
20200346961
2020-11-05

Saline glycerine wastewater treatment system and technology

#26
20200039839
2020-02-06

Process to provide source water and manage produced/flowback water for hydraulic fracturing

#27
20200002698
2020-01-02

Method for epoxidation to produce alkene oxide

#28
20200001254
2020-01-02

BEARINGLESS HYDRAULIC ROTARY STIRRING WATER DISTRIBUTOR

#29
20190218123
2019-07-18

Pressostatic odor control cover for slurry treatment tank with device for reducing the inner volume occupied by harmful and malodorous gases

#30
20190153730
2019-05-23

Filtering mesh with growth inhibiting material

#31
20190134536
2019-05-09

Liquid container monitoring and filtration system

#32
20190023594
2019-01-24

Granule-forming method and waste water treatment method

#33
20180370829
2018-12-27

Facility and method for biologically treating organic waste and effluents

#34
20180370828
2018-12-27

Membrane bioreactor for strengthening membrane fouling control and method thereof

#35
20180361444
2018-12-20

Compositions and methods for cleaning contaminated solids and liquids

#36
20180332830
2018-11-22

Automated aquaponics apparatus

#37
20180273413
2018-09-27

Wastewater detoxification method and system

#38
20180222780
2018-08-09

METHOD OF TREATING WATER USING FOAM FRACTIONATION

#39
20180141843
2018-05-24

Fast biofilm formation method for organic filler during treatment of sewage with low C/N ratio

#40
20180141839
2018-05-24

MBR frame

#41
20180135141
2018-05-17

Constitutive 1,4-dioxane-degrading bacteria

#42
20180099887
2018-04-12

Apparatus for relieving surface-layer clogging of denitrification deep-bed filter and method for running the same

#43
20180099885
2018-04-12

Apparatus for sewage deep bed denitrification with high pollutant carrying capacity and low energy consumption, and method for running the same

#44
20180087043
2018-03-29

Method for inhibiting growth of microorganisms with macroporous scaffolds

#45
20180072596
2018-03-15

Apparatus and methods for reducing nutrients in treating wastewater

#46
20170332626
2017-11-23

Composition and method for retention of solvated compounds and ions

#47
20170327394
2017-11-16

NOVEL FACILITY FOR TREATING WASTE WATER

#48
20170306290
2017-10-26

1,4-dioxane-degrading bacteria culture method, medium, and 1,4-dioxane treatment method using 1,4-dioxane-degrading bacteria

#49
20170283291
2017-10-05

Nitrogen-reducing wastewater treatment system

#50
20170217807
2017-08-03

Wastewater treatment systems and related methods

#51
20170202189
2017-07-20

AQUARIUM SYSTEM FOR ALL-AROUND VIEWING AND MICROCLIMATE SIMULATION

#52
20170157654
2017-06-08

Method and system for the in-situ decontamination of contaminated soils

#53
20170108298
2017-04-20

Installation element for use in the fields of cooling technology, water treatment or mass transfer and method for the manufacture of such an installation element

#54
20170072441
2017-03-16

Treatment of trade effluent from food waste disposal systems

#55
20170050400
2017-02-23

Screw conveyor type separation apparatus and wastewater treatment system

#56
20170014878
2017-01-19

Method of remediation of organic toxins using supported lipid bilayer nanoparticles

#57
20170001889
2017-01-05

MICRO-ENCAPSULATING FLOCCULATING DISPERSION WATER TREATMENT SYSTEM

#58
20160362344
2016-12-15

Method for producing a biologically active, microorganism-containing aqueous solution or suspension

#59
20160344077
2016-11-24

SOLAR DESALINATION AND POWER GENERATION PLANT

#60
20160340217
2016-11-24

WATER TREATMENT SYSTEM

#61
20160311002
2016-10-27

Compositions and methods for cleaning contaminated solids and liquids

#62
20160289545
2016-10-06

Generation of hydrocarbon fuels having a reduced environmental impact

#63
20160288040
2016-10-06

AIR PURIFICATION SYSTEM AND METHOD WITH BIOLOGICAL TREATMENT OF A SCRUBBER LIQUID

#64
20160264440
2016-09-15

Dual media system for treating wastewater containing selenium

#65
20160264439
2016-09-15

Multi-step system for treating selenium-containing wastewater

#66
20160264438
2016-09-15

Hybrid reactor and process for removing selenium

#67
20160264437
2016-09-15

Backwash method for biological reactors

#68
20160251302
2016-09-01

Process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid

#69
20160236944
2016-08-18

Wastewater treatment systems and related methods

#70
20160227767
2016-08-11

Composition and method for retention of solvated compounds and ions

#71
20160159669
2016-06-09

REMOVAL OF METALS FROM WASTEWATER

#72
20160158672
2016-06-09

BIOFILM FILTRATION DEVICE AND BACKWASH METHOD FOR BIOFILM FILTRATION DEVICE

#73
20160130160
2016-05-12

PROCESS FOR REDUCING THE TOTAL ORGANIC CARBON IN WASTEWATER

#74
20160083252
2016-03-24

Use of methanol in the production of hydrogen and fuel, processes and plants for the production of hydrogen and fuel

#75
20150353455
2015-12-10

Ethanol fermentation methods and systems

#76
20150299016
2015-10-22

Water treatment device

#77
20150284264
2015-10-08

Methods and systems for treating spent caustic and regenerating media

#78
20150252352
2015-09-10

Hierarchical magnetic nanoparticle enzyme mesoporous assemblies embedded in macroporous scaffolds

#79
20150101981
2015-04-16

ASSEMBLIES AND METHODS FOR TREATING WASTEWATER

#80
20150101978
2015-04-16

Composition and method for retention of solvated compounds and ions

#81
20150076061
2015-03-19

COKING WASTEWATER TREATMENT

#82
20150065758
2015-03-05

Ethanol fermentation methods and systems

#83
20150041409
2015-02-12

Reactive treatment cell and systems for environmental remediation

#84
20150034551
2015-02-05

Process for treating effluents from the production of an aromatic compound derived from a dihydroxylated benzene

#85
20150001142
2015-01-01

Hydro-kinetic reactor tank

#86
20140367333
2014-12-18

NOVEL BIOCATALYST COMPOSITIONS AND PROCESSES FOR USE

#87
20140319034
2014-10-30

Tank with an integral filter and beverage dispensing appliance comprising such a tank

#88
20140318794
2014-10-30

Generation of hydrocarbon fuels having a reduced environmental impact

#89
20140311959
2014-10-23

Wastewater treatment device

#90
20140302570
2014-10-09

Method and system for processing a biomass for producing biofuels and other products

#91
20140299541
2014-10-09

WATER FILTRATION AND SEWAGE SYSTEM

#92
20140263044
2014-09-18

Solid dissolver system for treatment of waste material

#93
20140251924
2014-09-11

Treatment of spent caustic waste

#94
20140231345
2014-08-21

Method and facility for treating wastewater containing hydrocarbons, in particular aromatic compounds

#95
20140166575
2014-06-19

Oil emulsification and polycyclic aromatic hydrocarbon adsorption using fine particles as dispersants

#96
20140131273
2014-05-15

Method and apparatus for wastewater treatment using screens

#97
20140097140
2014-04-10

Method and system for treating water in order to reduce its endocrine disrupting effect by means of a living organism

#98
20140083936
2014-03-27

Method and apparatus for water treatment using screens

#99
20140027378
2014-01-30

BIOFILM CARRIER SCREEN

#100
20140017291
2014-01-16

Microbes Encapsulated within Crosslinkable Polymers

#101
20130341266
2013-12-26

Altering metabolism in biological processes

#102
20130331268
2013-12-12

Composition and method for retention of solvated compounds and ions

#103
20130319933
2013-12-05

Bioaugmentation using floating mixer

#104
20130313173
2013-11-28

Device for Treating Water Comprising a Solid Filter Drum

#105
20130248428
2013-09-26

Modular smart biofeeding device

#106
20130236939
2013-09-12

Method of organic acid fermentation by rumen fluid using cellulose-containing waste matter

#107
20130171686
2013-07-04

METHOD OF TREATING MINE-INFLUENCED WATER AND SOIL

#108
20130130346
2013-05-23

Human waste treatment system and method

#109
20130032532
2013-02-07

Water treatment method and method for producing ultrapure water

#110
20130005810
2013-01-03

ORGANIC UNCOUPLING AGENTS

#111
20120318747
2012-12-20

Processes for remediation of contaminant plumes

#112
20120312744
2012-12-13

Aquarium filter media including nanofibers

#113
20120261337
2012-10-18

System and method for wastewater treatment

#114
20120223012
2012-09-06

WASTE SLUDGE DIGESTION PROCESS BY SEQUENTIAL INTERMITTENT OZONE DOSING

#115
20120152546
2012-06-21

Chemical oxidation or electromagnetic treatment in SAGD operations

#116
20120122164
2012-05-17

METHOD AND SYSTEM FOR PROCESSING A BIOMASS FOR PRODUCING BIOFUELS AND OTHER PRODUCTS

#117
20120006742
2012-01-12

Treatment method reducing wastewater influent chemical/pharmaceuticals before biological reduction to enhance sewage treatment

#118
20110220585
2011-09-15

Method integrating electrochemical oxidation and flocculation processes for pre-treatment of coking wastewater

#119
20110215050
2011-09-08

Control of filamentous bacteria induced foaming in wastewater systems

#120
20110188933
2011-08-04

Water-storage and water-purification system

#121
20110186510
2011-08-04

Systems and methods for reducing sludges produced by wastewater treatment facilities

#122
20110123876
2011-05-26

Production of a biofilm on an electrode for a biocell, electrode and biocell obtained

#123
20110089107
2011-04-21

Intimate coupling of photocatalysis and biodegradation in a photocatalytic circulating-bed biofilm reactor

#124
20110076935
2011-03-31

Ventilation group for flow reversal

#125
20100317905
2010-12-16

Use of Methanol in the Production of Hydrogen and Fuel, Processes and Plants for the Production of Hydrogen and Fuel

#126
20100317749
2010-12-16

Waste water treatment from a biomass-to-liquid process comprising synthesis gas production and integrated factory facility

#127
20100314313
2010-12-16

Desalination system and method of wastewater treatment

#128
20100252500
2010-10-07

Treatment of spent caustic waste

#129
20100193430
2010-08-05

Systems and methods for treating oil, fat and grease in collection systems

#130
20100170856
2010-07-08

IMPROVEMENT SEPARATION OF SOLIDS FROM LIQUIDS BY THE USE OF QUICK INVERTING AND DISPERSING FLOCCULANTS

#131
20100096323
2010-04-22

METHODS OF REDUCING THE COST REQUIRED FOR COMING INTO COMPLIANCE

#132
20100089826
2010-04-15

METHODS OF REDUCING THE TIME REQUIRED FOR COMING INTO COMPLIANCE

#133
20100089824
2010-04-15

Methods of reducing the amount of settling aid

#134
20090258051
2009-10-15

Microbes encapsulated within crosslinkable polymers

#135
20090152196
2009-06-18

Altering metabolism in biological processes

#136
20090114603
2009-05-07

Wastewater treatment vessel

#137
20090071904
2009-03-19

Membrane cover having a protective layer to prevent deterioration of UV stabilizers therein

#138
20080296215
2008-12-04

WASTEWATER TREATMENT AND DISPOSAL SYSTEM

#139
20080277338
2008-11-13

Methods of treatment of ground water

#140
20080210630
2008-09-04

METHODS AND KITS FOR BIOREMEDIATION OF CONTAMINATED SOIL

#141
20080210610
2008-09-04

Apparatus for treating wastewater

#142
20080185321
2008-08-07

Effluent purifying plant with centralized structure

#143
20080099397
2008-05-01

Method and system for inoculating bacteria in contaminated water using earthworm humus

#144
20080099396
2008-05-01

Device and Method for Purifying Waste Water

#145
20080073271
2008-03-27

Multistage process for treating water utilizing in one stage magnetic seed to sorb dissolved contaminants, and in another stage utilizing magnetic seed to clarify the water

#146
20080053907
2008-03-06

Offshore Wastewater Treatment

#147
20080047907
2008-02-28

Portable in-situ ozone-generating remedial system

#148
20080041732
2008-02-21

Portable in-situ oxygenation and hydrogenation remedial system

#149
20080022787
2008-01-31

Portable discrete groundwater sampling system

#150
20070256972
2007-11-08

Process for purification treatment of wastewater containing organic substance

#151
20070209999
2007-09-13

Wastewater treatment system

#152
20070193950
2007-08-23

Process for treatment of organic contaminated water

#153
20070170113
2007-07-26

Insitu Grease/Biosolid Bioremediation Apparatus and Method

#154
20070151909
2007-07-05

Separating device

#155
20070117085
2007-05-24

Method and device for culturing live cells by coupling a bioreactor receiver with a selection automation

#156
20070045182
2007-03-01

Fats, oil and grease interceptor

#157
20070029243
2007-02-08

Methods and apparatus for treating animal manure

#158
20070000835
2007-01-04

Wastewater treatment

#159
20060275114
2006-12-07

Combination of compressor and permanent magnet motor for sewage aeration

#160
20060261013
2006-11-23

Apparatus and method for the non-chemical stabilization of bio-solids

#161
20060186039
2006-08-24

Method and device for comminuting particulate organic substances in suspensions of microorganisms

#162
20060144785
2006-07-06

Constructed wetlands system, treatment apparatus and method

#163
20060065595
2006-03-30

Waste effluent treatment system

#164
20060027496
2006-02-09

Microbial manure treatment system

#165
20060000784
2006-01-05

Water treatment

#166
20050252093
2005-11-17

Membrane-covered reservoir having a hatchway therein

#167
20050236327
2005-10-27

Wastewater treatment

#168
20050217204
2005-10-06

Membrane cover having a protective layer to prevent deterioration of UV stabilizers therein

#169
20050173340
2005-08-11

Water clarifying agent inducing catalytic reaction and method of clarifying water through activation of microorganism

#170
20050131086
2005-06-16

Method of purifying fischer-tropsch derived water

#171
20050131084
2005-06-16

Method of purifying fischer-tropsch derived water

#172
20050109697
2005-05-26

Waste water treatment process

#173
20050098498
2005-05-12

Method for treating organic wastewater containing aminopolycarboxylic acid

#174
20050087894
2005-04-28

Method and apparatus for aerating a surface layer in a stratified liquid body

#175
20050000906
2005-01-06

Methods and apparatus for treating animal manure

#176
18152844
2025-07-15

Modular fish tank filter components

#177
17531869
2022-10-11

Combined heat, power, water and waste system

#178
15731462
2019-10-22

Treatment of source water

#179
14798623
2018-11-20

Treatment of potable water

#180
14456912
2016-08-02

Compositions and methods for cleaning contaminated solids and liquids

#181
14340862
2015-08-18

Treatment of potable water

#182
14251941
2016-03-01

Bioremediation separation system and method for human waste

#183
13782543
2015-03-03

Water treatment system and method

#184
13605374
2017-11-28

MBR frame