ClassID:

86394

C02F3/30 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage Aerobic and anaerobic processes

Sub-classes:
Recent Application in this class:
#1
20260138902
2026-05-21

WASTEWATER TREATMENT SYSTEMS AND METHODS INVOLVING A BIOLOGICALLY ACTIVE CONDUIT

#2
20260125301
2026-05-07

BIOREMEDIATION SYSTEMS FOR WASTEWATER TREATMENT AND METHODS FOR THE USE THEREOF

#3
20260116798
2026-04-30

EFFECTIVE TREATMENT OF CHLOROTRIFLUOROETHYLENE (CTFE) OLIGOMERS AND DERIVATIVES

#4
20260049016
2026-02-19

ANAEROBIC/AEROBIC SYSTEM WITH AMMONIA REMOVAL STEP AND RECYCLE FOR TREATING WASTEWATER

#5
20260028261
2026-01-29

SYSTEM AND METHOD FOR TREATMENT AND REUSE OF RENEWABLE ENERGY PRODUCTION WASTEWATER

#6
20260001796
2026-01-01

BIOLOGICALLY ACTIVE PERVIOUS STRUCTURE (BAPS): A SUSTAINABLE TECHNOLOGY FOR RUNOFF WATER QUALITY IMPROVEMENT

#7
20250382212
2025-12-18

METHOD OF FILTERING WASTEWATER AND A WASTEWATER TREATMENT SYSTEM

#8
20250351796
2025-11-20

CROP-LIVESTOCK CIRCULATION SYSTEM

#9
20250289739
2025-09-18

INTELLIGENT MODULAR MEMBRANE-BASED INTEGRATEDAPPARATUS AND METHOD FOR RURAL DOMESTIC SEWAGE TREATMENT

#10
20250197261
2025-06-19

WASTEWATER TREATMENT USING COMPOSITE BIOFILM CARRIERS

#11
20250145508
2025-05-08

METHOD AND SYSTEM FOR TREATING MATURE LANDFILL LEACHATE

#12
20250091922
2025-03-20

PRODUCTION OF SYNTHETIC HYDROCARBONS

#13
20250034015
2025-01-30

CONTINUOUS FLOW CYCLIC-OPERATING WASTEWATER TREATMENT PLANT AND PROCESS FOR GROWING, SELECTING AND MAINTAINING AEROBIC GRANULAR SLUDGE WHILE TREATING WASTEWATER

#14
20240375982
2024-11-14

Water aeration and treatment method

#15
20240343625
2024-10-17

Process for Removing Selenium from Wastewater Using Biological Reduction and Surface Complexation

#16
20240254026
2024-08-01

METHODS AND SYSTEMS FOR TREATING WASTEWATER

#17
20240228344
2024-07-11

Water retention and aeration treatment method for contaminated water

#18
20240199460
2024-06-20

METHOD FOR ENHANCED DENITRIFICATION AND DEVICE THEREOF

#19
20240182337
2024-06-06

Microalgae culturing pond-constructed wetland coupled system and method for advanced sewage purification

#20
20240109797
2024-04-04

Systems and Methods for Systems and Methods Using Thermophilic Microbes for the Treatment of Wastewater

#21
20240092667
2024-03-21

MULTI-STEP METHOD FOR TREATING AQUEOUS EFFLUENTS

#22
20240083789
2024-03-14

RECONSTRUCTION METHOD AND SYSTEM FOR WASTEWATER BIOLOGICAL TREATMENT PROCESS BASED ON MACHINE LEARNING SYSTEM

#23
20240034658
2024-02-01

Method and apparatus for reusing wastewater

#24
20240002267
2024-01-04

CHEMICAL SEWAGE TREATMENT AND REUSE SYSTEM

#25
20230406747
2023-12-21

Suspended bed electro-membrane bioreactor system

#26
20230373827
2023-11-23

Septic water treatment method for removing carbonaceous and nitrogenous compounds

#27
20230322596
2023-10-12

Use of conductive particles suspended in electrolyte to enhance biodegradation rate

#28
20230242430
2023-08-03

Integrated device and method for treating toxic and refractory wastewater

#29
20230234871
2023-07-27

System and method for treating printed circuit board (PCB) wastewater

#30
20230234867
2023-07-27

BIOREMEDIATION SYSTEMS FOR WASTEWATER TREATMENT AND METHODS FOR THE USE THEREOF

#31
20230227341
2023-07-20

Total nitrogen removal device for sewage and method for operating the same

#32
20230202892
2023-06-29

METHODS FOR INCREASING BIOSOLIDS CAKE DRYNESS THROUGH A FORCED VENTILATION AERATED STATIC PILE BIOLOGICAL DRYING PROCESS

#33
20230202889
2023-06-29

SYSTEMS AND METHODS FOR CONTROLLING NITROUS OXIDE PRODUCTION IN WASTEWATER TREATMENT FACILITIES

#34
20230031729
2023-02-02

SYSTEMS AND METHODS FOR TREATMENT PROCESSES

#35
20230009939
2023-01-12

Method for the early estimation of anaerobic degradability of organic substrates

#36
20230002264
2023-01-05

Wastewater treatment system for improved primary treatment and volatile fatty acid generation

#37
20220402834
2022-12-22

METHOD FOR TREATING HUMAN OR ANIMAL URINE AND USES OF THE TRANSFORMED URINE OBTAINED IN PARTICULAR AS FERTILISER

#38
20220402791
2022-12-22

Bioaugmentation treatment process for lithium battery producing wastewater

#39
20220324736
2022-10-13

Transportable wastewater treatment systems and methods

#40
20220316994
2022-10-06

Method for predicting operation effectiveness of decentralized sewage treatment facility by using support vector machine

#41
20220298041
2022-09-22

Method for water treatment and recycling

#42
20220242763
2022-08-04

Fail Safe Flushing BioReactor for Selenium Water Treatment

#43
20220234933
2022-07-28

SCREW-TYPE SEPARATION DEVICE, CASING, WASTEWATER TREATMENT SYSTEM, AND CLEANING METHOD OF SCREW-TYPE SEPARATION DEVICE

#44
20220177341
2022-06-09

SEWAGE TREATMENT METHOD

#45
20220064040
2022-03-03

SEWAGE TREATMENT APPARATUS SUITABLE FOR SINGLE-FAMILY DOMESTIC SEWAGE TREATMENT

#46
20220055929
2022-02-24

Sewage treatment apparatus suitable for multi-household domestic sewage treatment

#47
20220048798
2022-02-17

Maintaining a steady microbial community in a combined anaerobic-aerobic apparatus

#48
20220009811
2022-01-13

Oily sewage pretreatment method and device without air floatation

#49
20210395120
2021-12-23

Data-knowledge driven optimal control method for municipal wastewater treatment process

#50
20210292673
2021-09-23

Process for the production of bio-oil and biogas from biomass

#51
20210292202
2021-09-23

Microbiological treatment system for ethylene oxide exhaust gas

#52
20210292200
2021-09-23

Nitrite-oxidizing bacteria activity inhibitor and method

#53
20210291112
2021-09-23

Sterilization exhaust gas treating system and method for treating ethylene oxide-containing sterilization exhaust gas by using the same

#54
20210246058
2021-08-12

Anaerobic and aerobic treatment system and process for landfill wastewater

#55
20210147269
2021-05-20

Bacterial consortium for reducing perchlorate and/or nitrate and the process thereof

#56
20210139358
2021-05-13

Residential water treatment and recycle system

#57
20210107815
2021-04-15

Method and device for treating acrolein reactor wastewater

#58
20210070640
2021-03-11

Multi-layer geotextile-plastic particle water treatment

#59
20210061690
2021-03-04

Fail Safe Flushing BioReactor for Selenium Water Treatment

#60
20210024394
2021-01-28

Methods and systems for treating wastewater

#61
20210009451
2021-01-14

High solids dissolved air flotation system and methods

#62
20200385297
2020-12-10

Method for predicting discharge level of effluent from decentralized sewage treatment facilities

#63
20200369547
2020-11-26

Systems, methods and Apparatuses for Water Treatment

#64
20200369546
2020-11-26

ANAEROBIC-AEROBIC BIOREMEDIATION OF CONTAMINATED WATER

#65
20200267948
2020-08-27

Water purification system and filtration block

#66
20200223729
2020-07-16

Bio-DAF system for domestic and industrial wastewater treatment

#67
20200165553
2020-05-28

Apparatus and method for refractory organics conversion into biogas

#68
20200156974
2020-05-21

Device and method for installing aerobic three-phase separator without interruption of production

#69
20200071217
2020-03-05

APPARATUS FOR CONVERTING A SEPTIC TANK INTO AN AEROBIC TREATMENT SYSTEM AND A WASTEWATER TREATMENT SYSTEM EMPLOYING SUCH APPARATUS

#70
20200055757
2020-02-20

System and method for controlled gas-dispersion-return-sludge-based wastewater treatment

#71
20200055740
2020-02-20

Method for directly and deeply purifying high concentration organic wastewater

#72
20200048130
2020-02-13

Biorefinery method and system for isolated environments

#73
20200030749
2020-01-30

Membrane filtration system and membrane bio reactor including the same

#74
20200002201
2020-01-02

Continuous flow wastewater treatment system

#75
20190389755
2019-12-26

Aerated racetrack wetland system for treating wastewater

#76
20190387722
2019-12-26

Water quality purification device, water purifier and aquarium using the same

#77
20190284074
2019-09-19

Method and device for treating wastewater containing organic matter and/or wet waste containing organic matter, in particular for treating sanitary wastewater in trains

#78
20190210891
2019-07-11

Biological contact and dissolved air flotation treatment of storm water

#79
20190160396
2019-05-30

FOLDABLE AND REMOVABLE PARTITION ASSEMBLY FOR SEPTIC TANK

#80
20190135672
2019-05-09

Concentration of wastewater to reduce flow rate, cost, and footprint of treatment system

#81
20190106345
2019-04-11

Photovoltaic evaporation and distillation system for the recycling of greywater to potable water

#82
20190100452
2019-04-04

Biological removal of micropollutants from wastewater

#83
20190100451
2019-04-04

Systems and methods for treatment processes

#84
20190100450
2019-04-04

SYSTEMS AND METHODS FOR TREATMENT PROCESSES

#85
20190100449
2019-04-04

SYSTEMS AND METHODS FOR TREATMENT PROCESSES

#86
20190092667
2019-03-28

Method and apparatus for selenium removal from high TDS wastewater

#87
20190084855
2019-03-21

Vermicomposting method and system for conversion and treatment of organic waste streams

#88
20190055147
2019-02-21

BIOFILM MEDIA, TREATMENT SYSTEM AND METHOD OF WASTEWATER TREATMENT

#89
20180370827
2018-12-27

WASTEWATER TREATMENT PLANT ONLINE MONITORING AND CONTROL

#90
20180363013
2018-12-20

Process for producing polyhydroxyalkanoate

#91
20180339925
2018-11-29

Method for forming aerobic granules, device for forming aerobic granules, method for treating wastewater, and device for treating wastewater

#92
20180327292
2018-11-15

SYSTEM AND METHOD FOR WASTEWATER TREATMENT PROCESS CONTROL

#93
20180298286
2018-10-18

Discriminate mass transfer in a wet oxidation system

#94
20180251389
2018-09-06

Home sewage treatment system

#95
20180208481
2018-07-26

Method of recovering iron and/or phosphorus from sludge of waste water treatment plants

#96
20180194652
2018-07-12

Subsurface sewage disposal system

#97
20180164272
2018-06-14

Measuring phosphorus in wastewater using a self-organizing RBF neural network

#98
20180155227
2018-06-07

Biorefinery method and system for isolated environments

#99
20180147540
2018-05-31

Membrane filtration system and membrane bio reactor including the same

#100
20180118588
2018-05-03

CONTROL OF BACTERIAL ACTIVITY, SUCH AS IN SEWERS AND WASTEWATER TREATMENT SYSTEMS

#101
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

#102
20180072596
2018-03-15

Apparatus and methods for reducing nutrients in treating wastewater

#103
20180066192
2018-03-08

Discriminate mass transfer in a wet oxidation system

#104
20180002208
2018-01-04

Wastewater Treatment System

#105
20170341962
2017-11-30

Sewage treatment chlorinator and system and method for use of same

#106
20170260073
2017-09-14

SLUDGE TREATMENT SYSTEM WITH SLUDGE DRYING ACCELERATION FUNCTION

#107
20170081227
2017-03-23

Concentrating of wastewater to reduce flow rate, cost, and footprint of treatment system

#108
20170073261
2017-03-16

Organics and nutrient recovery from anaerobic digester residues

#109
20170057850
2017-03-02

Composition and method for remediation of contaminated water

#110
20170015575
2017-01-19

Wastewater treatment system having flow ports for modulating flow

#111
20160368802
2016-12-22

Circulating water utilization system

#112
20160318782
2016-11-03

Algal-sludge granule for wastewater treatment and bioenergy feedstock generation

#113
20160292795
2016-10-06

Charging device of circulating water utilization system and circulating-water utilization system

#114
20160289107
2016-10-06

Moving bed biofilm reactor for waste water treatment system

#115
20160272523
2016-09-22

Wastewater Treatment Method, System and Pollutant Decomposition Activity Measuring Method

#116
20160251587
2016-09-01

Methods and Apparatuses for Removal of Hydrogen Sulfide and Carbon Dioxide from Biogas

#117
20160207808
2016-07-21

SYSTEM AND MULTI-FUNCTIONAL METHOD FOR TREATING WASTEWATER

#118
20160159673
2016-06-09

Wastewater treatment plant and method for treatment of waste sludge

#119
20160152500
2016-06-02

Production of biomass for use in the treatment of Fischer-Tropsch reaction water

#120
20160122705
2016-05-05

Dual-compartment bioreactor for use in wastewater treatment and algal production

#121
20160115059
2016-04-28

System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system

#122
20160107911
2016-04-21

APPARATUS AND METHOD FOR PURIFYING WATER

#123
20160102005
2016-04-14

Anaerobic Process for Treating Organic Waste Materials

#124
20160096754
2016-04-07

Wastewater treatment system

#125
20160083268
2016-03-24

Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle

#126
20160039695
2016-02-11

System and method of treating wastewater

#127
20160009580
2016-01-14

WASTEWATER TREATMENT SYSTEM AND METHODS

#128
20160009579
2016-01-14

NOVEL SYSTEMS AND METHODS FOR CONVERTING GASEOUS BYPRODUCTS OF WASTEWATER TREATMENT INTO ENERGY

#129
20160002083
2016-01-07

MICRO-SIEVE SEPARATION AND COD DIVERSION IN WASTEWATER TREATMENT

#130
20160002081
2016-01-07

WASTEWATER TREATMENT WITH MEMBRANE AERATED BIOFILM AND ANAEROBIC DIGESTER

#131
20150360981
2015-12-17

Process for treating effluents containing nitrogen in ammonium form, and equipment for implementing this process

#132
20150336827
2015-11-26

Biofilm media, treatment system and method of wastewater treatment

#133
20150329394
2015-11-19

Use of activated carbon in a membrane bioreactor

#134
20150315049
2015-11-05

Nitrogen-containing compounds for bacterial control in water based fluids

#135
20150225270
2015-08-13

Dual Flow Septic Vent

#136
20150218025
2015-08-06

Subsurface sewage disposal system

#137
20150210577
2015-07-30

Process for reducing the production of sludge by municipal or industrial wastewater purification plants, and equipment for the implementation thereof

#138
20150210576
2015-07-30

Partially Divided Anaerobic Treatment System

#139
20150202573
2015-07-23

Membrane filter cleaning apparatus for waste-water treatment process

#140
20150151995
2015-06-04

Water Treatment System and Method for Removal of Contaminants Using Biological Systems

#141
20150144554
2015-05-28

WASTEWATER TREATMENT PROCESS WITH MOVING BED BIOREACTOR (MBBR)

#142
20150034553
2015-02-05

Wastewater treatment plant online monitoring and control

#143
20150034552
2015-02-05

Water Treatment System and Method for Removal of Contaminants Using Biological Systems

#144
20150021264
2015-01-22

TREATMENT METHODS AND TREATMENT SYSTEMS FOR PLANT EFFLUENTS

#145
20150014245
2015-01-15

Modular wastewater treatment plant

#146
20140346108
2014-11-27

Organics and nutrient recovery from anaerobic digester residues

#147
20140319055
2014-10-30

Using continuous nitrate measurement to control aeration in an aerated-anoxic process

#148
20140319053
2014-10-30

Method and a system for out-competing glycogen-accumulating organisms in a substance

#149
20140311970
2014-10-23

ROTATING DRUM MICRO-SCREEN FOR PRIMARY WASTEWATER TREATMENT

#150
20140308739
2014-10-16

Energy recovery system

#151
20140263039
2014-09-18

METHOD AND APPARATUS FOR UNICELLULAR BIOMASS PRODUCTION USING pH CONTROL SYSTEM AND INDUSTRIAL WASTEWATER WITH HIGH BIOCHEMICAL OXYGEN DEMAND LEVELS

#152
20140263010
2014-09-18

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

#153
20140246369
2014-09-04

Wastewater treatment process and system

#154
20140238932
2014-08-28

Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle

#155
20140175009
2014-06-26

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

#156
20140166558
2014-06-19

NITROGEN-REDUCING WASTEWATER TREATMENT SYSTEM

#157
20140151294
2014-06-05

Method and apparatus for residential water recycling

#158
20140144836
2014-05-29

Method and apparatus for wastewater treatment using gravimetric selection

#159
20140124440
2014-05-08

Method for removing genes encoding antibiotic resistance

#160
20140124438
2014-05-08

Wastewater treatment method and device

#161
20140124420
2014-05-08

Hybrid artificial wetland water purification system, sewage treatment device using same, and natural nonpoint purification device capable of simultaneously purifying river and lake water

#162
20140120594
2014-05-01

Method for reducing water usage in a cellulosic conversion process

#163
20140116957
2014-05-01

FLOATING FILTER MODULE AND WATER TREATMENT APPARATUS AND METHOD USING THE SAME

#164
20140102978
2014-04-17

Composition and method for remediation of contaminated water

#165
20140083934
2014-03-27

Biological two-stage contaminated water treatment system

#166
20140052422
2014-02-20

Method and system for wastewater treatment based on dissolved oxygen control by fuzzy neural network

#167
20140042085
2014-02-13

Systems and methods for waste treatment

#168
20140027374
2014-01-30

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

#169
20140027373
2014-01-30

PARTIALLY DIVIDED ANAEROBIC TREATMENT SYSTEM

#170
20140021130
2014-01-23

Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods

#171
20130341267
2013-12-26

TREATMENT FOR MOLASSES SPENT WASH AND OTHER WASTEWATERS

#172
20130334134
2013-12-19

Integrated selenium removal system for waste water

#173
20130309759
2013-11-21

Methods and apparatuses for removal of hydrogen sulfide and carbon dioxide from biogas

#174
20130291608
2013-11-07

Systems and method for biomass digestion

#175
20130264282
2013-10-10

Process, apparatus and membrane bioreactor for wastewater treatment

#176
20130264281
2013-10-10

Apparatus and methods for control of waste treatment processes

#177
20130256217
2013-10-03

Process and apparatus for controlling aeration during nitrification and denitrification of water

#178
20130240420
2013-09-19

System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system

#179
20130206657
2013-08-15

SELF-SUSTAINED BIO-DIGESTER FOR ONBOARD DEGRADATION OF HUMAN WASTE

#180
20130153492
2013-06-20

Wastewater treatment system

#181
20130140230
2013-06-06

Systems and methods for converting gaseous byproducts of wastewater treatment into energy

#182
20130134089
2013-05-30

METHOD AND SYSTEM FOR TREATING WASTEWATER

#183
20130112616
2013-05-09

Fluid treatment system

#184
20130098815
2013-04-25

SEWAGE TREATMENT APPARATUS

#185
20130092629
2013-04-18

Liquid waste treatment system

#186
20130032519
2013-02-07

Biological sewage treatment device

#187
20130029388
2013-01-31

Method for accumulation of polyhydroxyalkanoates in biomass with on-line monitoring for feed rate control and process termination

#188
20130001159
2013-01-03

Method for wet weather wastewater treatment

#189
20120325421
2012-12-27

Circular utilization method in pulping and papermaking processes with straw

#190
20120318734
2012-12-20

Methods for treating waste water

#191
20120312753
2012-12-13

Systems and methods for treating wastewater

#192
20120309071
2012-12-06

Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide including phosphorus recovery and nitrite reduction to nitrous oxide

#193
20120273412
2012-11-01

Treatment of waste product

#194
20120255902
2012-10-11

Peak flow management in wastewater treatment using direct membrane filtration

#195
20120234751
2012-09-20

Wastewater pretreatment method and sewage treatment method using the pretreament method

#196
20120228217
2012-09-13

Method and apparatus for sluge treatment and use thereof in sewage biotreatment

#197
20120175302
2012-07-12

APPARATUS AND METHODS FOR CONTROL OF WASTE TREATMENT PROCESSES

#198
20120152830
2012-06-21

Waste water treatment method

#199
20120145628
2012-06-14

PHYTOREMEDIATION FOR DESALINATED WATER POST-PROCESSING

#200
20120122196
2012-05-17

Methods and products for biomass digestion

#201
20120103888
2012-05-03

WASTE WATER RECYCLING SYSTEM

#202
20120085702
2012-04-12

Sewage nitrate removal by free-draining asphyxiant filtration and carbon addition

#203
20120085701
2012-04-12

Process and plant for treating a water stream

#204
20120072196
2012-03-22

Core column simulator for a wastewater biotreatment system and methods of use

#205
20120055872
2012-03-08

Sub-critical partial oxidation for treatment of nitration wastes

#206
20120034681
2012-02-09

Digester for high solids waste

#207
20110315627
2011-12-29

METHOD OF BIOLOGICAL WASTE-WATER TREATMENT

#208
20110207061
2011-08-25

Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide

#209
20110203992
2011-08-25

HYBRID AEROBIC AND ANAEROBIC WASTEWATER AND SLUDGE TREATMENT SYSTEMS AND METHODS

#210
20110129900
2011-06-02

Low oxygen biologically mediated nutrient removal

#211
20110127214
2011-06-02

ENERGY OPTIMIZATION IN AN ANAEROBIC, FACULTATIVE, ANOXIC AEROBIC PLANT, USING FINE BUBBLES, WITHOUT SLUDGE PRODUCTION

#212
20110084020
2011-04-14

Systems and methods for converting gaseous byproducts of wastewater treatment into energy

#213
20110079554
2011-04-07

Method for treating mixed wastewater from pharmaceutical chemical industry park

#214
20110068056
2011-03-24

Method for the Biological Treatment of an Effluent and Associated Plant

#215
20110062080
2011-03-17

Bio-denitrification apparatus and method for making and using same

#216
20110027870
2011-02-03

BIOMASS CARRIERS, METHOD AND APPARATUS FOR MANUFACTURE THEREOF AND FLUID TREATMENT SYSTEMS AND METHODS UTILIZING SAME

#217
20100326904
2010-12-30

WASTEWATER TREATMENT

#218
20100276349
2010-11-04

Integrated oxidation ditch

#219
20100272626
2010-10-28

Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide

#220
20100243561
2010-09-30

Local sewage processing unit, sewage treatment system, method of locally processing sewage and sewage treatment process

#221
20100243544
2010-09-30

Sewage treatment apparatus and sewage reuse system

#222
20100215553
2010-08-26

UV disinfection system

#223
20100200498
2010-08-12

Process for maximizing PHA production in glycogen accumulating organisms

#224
20100200481
2010-08-12

Membrane filter unit

#225
20100191377
2010-07-29

Infiltration/inflow control for membrane bioreactor

#226
20100187187
2010-07-29

Plant for aerobic and anaerobic digestion treatment by PFR

#227
20100155328
2010-06-24

Systems and methods for water treatment and remediation

#228
20100136674
2010-06-03

Plant for producing an oxygen-containing additive as an ecologically beneficial component for liquid motor fuels

#229
20100101985
2010-04-29

Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment

#230
20100096323
2010-04-22

METHODS OF REDUCING THE COST REQUIRED FOR COMING INTO COMPLIANCE

#231
20100089826
2010-04-15

METHODS OF REDUCING THE TIME REQUIRED FOR COMING INTO COMPLIANCE

#232
20100089824
2010-04-15

Methods of reducing the amount of settling aid

#233
20100089822
2010-04-15

Micro gas attendant system

#234
20100084337
2010-04-08

Apparatus and methods for control of waste treatment processes

#235
20100078307
2010-04-01

Anaerobic process for treating organic material to generate biogas

#236
20100072131
2010-03-25

Membrane bioreactor

#237
20100059438
2010-03-11

Vertical-horizontal filter unit for the biological purification of polluted water

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Waste water treatment method

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2010-02-11

SEWAGE PURIFICATION PLANT AND PROCESS THEREOF

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2010-01-21

Systems and methods for wastewater treatment

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2009-12-10

Micro-electron acceptor phosphorus accumulating organisms

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2009-11-19

Apparatus and method for treating organic-containing wastewater

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2009-11-12

CHANGEABLE CONTINUOUS FLOW MODULAR SYSTEM FOR THE TREATMENT OF WATER STREAMS

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Device for deep sewage treatment without sludge discharge

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2009-10-22

Bi-phasic bioretention system

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2009-10-15

Method and apparatus for on-site treatment of waste water

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2009-09-24

Methods for biological purification of waste

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2009-09-24

Method for treating produced water

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2009-09-17

Energy recovery system

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2009-09-10

SYSTEM, DEVICE AND METHOD FOR ON-SITE WASTEWATER PROCESSING

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20090218299
2009-09-03

INVERTED AERATED IMMERSED SCREEN, SCREEN ASSEMBLY AND OPERATING PROCESS

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2009-08-27

Method and apparatus for enhancing aquatic environments

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2009-07-02

WASTEWATER PURIFYING SYSTEM IN HOSPITALS

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2009-06-11

Water treatment system

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2009-06-04

Biological Power Generator, and Method of Treating Organic Solid Pollutant-Containing Waste, a Method of Treating Organic Polymeric Substance-Containing Wastewater, a Method of Treating Organic Substance-Containing Wastewater, as Well as Apparatuses for Implementing These Treatment Methods

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2009-04-30

System and method for anaerobic digestion of biomasses

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2009-02-05

Aeration-less water treatment apparatus

#258
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2009-01-08

INTERMITTENT ANAEROBIC BIOLOGICAL TREATMENTS OF RAINFALL-INDUCED SEWERAGE

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2008-11-13

Method for controlling fouling of a membrane filter

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2008-11-13

Methods of treatment of ground water

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20080264857
2008-10-30

Mine influenced water remediation using bioremediation substrate

#262
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2008-10-23

System and method for processing organic waste material

#263
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2008-09-18

Method and arrangement for processing nitrogen-concentrated effluents in a sequential fractionated cycle biological reactor

#264
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2008-09-18

Method for wastewater treatment with resource recovery and reduced residual solids generation

#265
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2008-09-04

METHODS AND KITS FOR BIOREMEDIATION OF CONTAMINATED SOIL

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2008-09-04

Apparatus for treating wastewater

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2008-06-26

Water treatment system including foam block

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2008-05-15

Integrated multi-zone wastewater treatment system and method

#269
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2008-05-15

Process for providing oxygen to a liquid

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2008-05-15

Method for treating wastewater and sludge

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2008-04-17

Water circulation systems for ponds, lakes, and other bodies of water

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2008-04-17

WATER CIRCULATION SYSTEMS FOR PONDS, LAKES, AND OTHER BODIES OF WATER

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2008-03-27

Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment process

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2008-03-27

WATER TREATMENT APPARATUS

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2008-03-06

Method for generating fracturing water

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2008-03-06

Method for treating water contaminated with methanol and boron

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2008-03-06

Waste water treatment method

#278
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2008-01-03

Water circulation systems for ponds, lakes, and other bodies of water with adjustable solar panels

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2007-12-20

Apparatus and method for treating wastewater

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20070278150
2007-12-06

System and methods for biological selenium removal from water

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2007-11-22

Method and apparatus for enhancing aquatic environments

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2007-09-13

Wastewater treatment system

#283
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2007-07-19

Process for reducing waste volume

#284
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2007-06-28

Low oxygen biologically mediated nutrient removal

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20070102352
2007-05-10

NITROGEN RECOVERY SYSTEM AND METHOD USING HEATED AIR AS STRIPPING GAS

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2007-04-26

Complete Water Management Process and System

#287
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2007-03-15

Process for treating septage to extract a bio-fuel

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2007-03-01

System and method for introducing high pressure air into a wastewater treatment system

#289
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2007-03-01

System and method for wastewater treatment

#290
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2007-02-08

Phased activated sludge system

#291
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2006-11-16

Mixer for use with media in wastewater treatment

#292
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2006-11-16

Clarifier recycle system design for use in wastewater treatment system

#293
20060243661
2006-11-02

System for treating wastewater containing organic compounds

#294
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2006-09-07

System for wastewater treatment and digestion having aerobic and anaerobic treatment zones

#295
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2006-08-03

Method and apparatus for treating sludge, and method and apparatus for treating wastewater utilizing the same

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20060163157
2006-07-27

Supported biofilm process

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2006-07-13

Multiple soil-layering system for wastewater purification

#298
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2006-06-29

Apparatus for and a method of treating organic waste

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2006-05-11

System and method for processing organic waste material

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2006-04-06

Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment systems