ClassID:

86379

C02F3/28 - page 2 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage Anaerobic digestion processes

Recent Application in this class:
#301
20120055868
2012-03-08

Process for the purification of an aqueous stream coming from the fischer-tropsch reaction

#302
20120000863
2012-01-05

Manure separation for digester method and apparatus

#303
20110315626
2011-12-29

Method and system for treating domestic sewage and organic garbage

#304
20110315561
2011-12-29

TREATMENT OF SOLUTIONS OR WASTEWATER

#305
20110284438
2011-11-24

Biological filtration system with socks of absorbent material

#306
20110272347
2011-11-10

High-rate anaerobic pool bioreactor

#307
20110257275
2011-10-20

System and method for renewable resource production, for example, hydrogen production by microbial electrolysis, fermentation, and/or photosynthesis

#308
20110253604
2011-10-20

OZONATION SYSTEM FOR TREATING SECONDARY WASTEWATER

#309
20110203992
2011-08-25

HYBRID AEROBIC AND ANAEROBIC WASTEWATER AND SLUDGE TREATMENT SYSTEMS AND METHODS

#310
20110200954
2011-08-18

Renewable energy microgeneration system

#311
20110186510
2011-08-04

Systems and methods for reducing sludges produced by wastewater treatment facilities

#312
20110180633
2011-07-28

System having foam busting nozzle and sub-surface mixing nozzle

#313
20110163022
2011-07-07

Integrated sewage treatment plant

#314
20110100911
2011-05-05

Wastewater treatment method and system with ozonation for microconstituent removal

#315
20110100902
2011-05-05

MIXING DEVICE, SYSTEM AND METHOD FOR ANAEROBIC DIGESTION

#316
20110084416
2011-04-14

Mixing systems and methods of mixing

#317
20110048230
2011-03-03

PROCESS FOR STRIPPING AND RECOVERING AMMONIA FROM DIGESTED WASTES AND PLANT FOR CARRYING OUT SAID PROCESS

#318
20100326908
2010-12-30

Wastewater treatment system

#319
20100326896
2010-12-30

SYSTEM INCLUDING A DIGESTER AND A DIGESTER EMULATOR

#320
20100322839
2010-12-23

Nitrogen-rich waste water treatment method and method for producing struvite

#321
20100311155
2010-12-09

METHOD FOR TREATMENT OF ORGANIC MATERIAL

#322
20100282674
2010-11-11

Phosphate recovery from acid phase anaerobic digesters

#323
20100264083
2010-10-21

METHOD AND APPARATUS FOR TREATING WASTE ACTIVATED SLUDGE

#324
20100213121
2010-08-26

Anaerobic wastewater treatment system and process utilizing solids based bacterial colonization (SBBC)

#325
20100206807
2010-08-19

Municipal septic tank biogas collection system and method

#326
20100200500
2010-08-12

Bubble-Less Gas Delivery Into Liquid Systems

#327
20100193430
2010-08-05

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

#328
20100184170
2010-07-22

Development of a Fermentative Enrichment Culture and Two Pure Isolates that Biotransform High Concentrations of Chloroform and Other Halomethanes

#329
20100170845
2010-07-08

Waste activated sludge phosphorus and magnesium stripping process and struvite production system

#330
20100105128
2010-04-29

Portable high rate anaerobic digester apparatus and method of operation

#331
20100101985
2010-04-29

Apparatus for removing dissolved hydrogen sulfide in anaerobic treatment

#332
20100096323
2010-04-22

METHODS OF REDUCING THE COST REQUIRED FOR COMING INTO COMPLIANCE

#333
20100089826
2010-04-15

METHODS OF REDUCING THE TIME REQUIRED FOR COMING INTO COMPLIANCE

#334
20100089824
2010-04-15

Methods of reducing the amount of settling aid

#335
20100089822
2010-04-15

Micro gas attendant system

#336
20100078307
2010-04-01

Anaerobic process for treating organic material to generate biogas

#337
20100044307
2010-02-25

Process and installation for anaerobic treatment of material having high solids concentration

#338
20100032369
2010-02-11

SEWAGE PURIFICATION PLANT AND PROCESS THEREOF

#339
20100018917
2010-01-28

Method and apparatus for processing organic waste

#340
20090308807
2009-12-17

Method of removing phosphorus and/or nitrogen

#341
20090294355
2009-12-03

Method and apparatus for the anaerobic treatment of waste water

#342
20090266761
2009-10-29

Anaerobic purification of heated waste water

#343
20090250393
2009-10-08

Apparatus and method for agricultural animal wastewater treatment

#344
20090236274
2009-09-24

Agitator in a sewer system

#345
20090194476
2009-08-06

Waste activated sludge stripping to remove internal phosphorus

#346
20090188850
2009-07-30

System for treating residual water

#347
20090090679
2009-04-09

MANURE SEPARATION FOR DIGESTER METHOD AND APPARATUS

#348
20090057242
2009-03-05

Method and apparatus for removing debris from septic waste

#349
20090050560
2009-02-26

Anaerobic reactor for the removal of long chain fatty acids from fat containing wastewater

#350
20080277338
2008-11-13

Methods of treatment of ground water

#351
20080210630
2008-09-04

METHODS AND KITS FOR BIOREMEDIATION OF CONTAMINATED SOIL

#352
20080210610
2008-09-04

Apparatus for treating wastewater

#353
20080156726
2008-07-03

Integrating recycle stream ammonia treatment with biological nutrient removal

#354
20080142437
2008-06-19

Anaerobic wastewater treatment system and method

#355
20080053913
2008-03-06

Nutrient recovery process

#356
20080038184
2008-02-14

Process and apparatus for the production of sulphur oxides

#357
20080035538
2008-02-14

Apparatus for denitrifying wastewater

#358
20070275450
2007-11-29

Method for stabilization of biological cultures to allow biological treatment of brines

#359
20070267346
2007-11-22

Process for autotrophic perchlorate reduction using elemental sulfur and mollusk shells

#360
20070262019
2007-11-15

Process for autotrophic denitrification using elemental sulfur and mollusk shells

#361
20070199894
2007-08-30

By-products from fermentation still bottoms

#362
20070128712
2007-06-07

Treatment of putrescrible cakes

#363
20070114173
2007-05-24

Method and apparatus for solids processing

#364
20070102352
2007-05-10

NITROGEN RECOVERY SYSTEM AND METHOD USING HEATED AIR AS STRIPPING GAS

#365
20070095734
2007-05-03

Apparatus for the treatment of particulate biodegradable organic waste

#366
20070029264
2007-02-08

Processing biological waste materials to provide energy

#367
20060283793
2006-12-21

Ultraviolet treatment unit and septic tank system

#368
20060273044
2006-12-07

Chemical treatment for control of sulfide odors in waste materials

#369
20060254978
2006-11-16

Method for the treatment of waste

#370
20060249450
2006-11-09

Apparatus and method for treating wastewater containing nitrogen-containing dyes

#371
20060226068
2006-10-12

Water treatment

#372
20060219614
2006-10-05

Organic and animal waste effluent treatment

#373
20060138046
2006-06-29

Apparatus for and a method of treating organic waste

#374
20060108282
2006-05-25

Apparatus and method for the treatment of waste

#375
20060091073
2006-05-04

Method and apparatus for treating ammonium-containing liquid

#376
20060076291
2006-04-13

Digester cover

#377
20060043018
2006-03-02

Anoxic biological reduction system

#378
20060043016
2006-03-02

Septic tank

#379
20050274668
2005-12-15

Method and apparatus for the treatment of particulate biodegradable organic waste

#380
20050194311
2005-09-08

Biological process for waste treatment and energy production

#381
20050139546
2005-06-30

Nitrogen recovery system and method using heated air as stripping gas

#382
20050131083
2005-06-16

Method of purifying fischer-tropsch derived water

#383
20050115893
2005-06-02

Controlled eutrophication system and process

#384
20050040103
2005-02-24

System and method for enhanced wastewater treatment

#385
18669020
2024-11-19

Preparation method for modified cathode of MEC-AD system and application of system with high efficiency and low energy consumption

#386
18668672
2024-10-15

Water restoration system

#387
17506287
2022-07-19

Small footprint pre-treatment plant and decentralized food waste separation and treatment

#388
17344941
2022-02-08

Brine waste management method utilizing genetically modified halophiles as bio-refineries

#389
16517637
2019-10-29

System and method for wastewater treatment through controlling purification functions of microorganisms based on activated sludge process

#390
15956631
2019-01-01

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

#391
15069383
2018-08-14

Multi-stage residential wastewater treatment tank and bactericide pump

#392
14489888
2016-03-01

Leaching tube

#393
13901358
2015-08-04

Method for treating flowback water from hydraulic fracturing