ClassID:

86448

C02F11/125 - CPC Classification

Classification description:

Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters

Recent Application in this class:
#1
20260070854
2026-03-12

SYSTEM AND PROCESS FOR REDUCING PFAS AND MICROPLASTICS IN BIOSOLIDS USING HYDRODYNAMIC CAVITATION AND FOAM FRACTIONATION

#2
20250340473
2025-11-06

SYSTEM AND PROCESS FOR REDUCING PFAS AND MICROPLASTICS IN BIOSOLIDS USING HYDRODYNAMIC CAVITATION AND FOAM FRACTIONATION

#3
20250320147
2025-10-16

Mechanical Sludge Thickener System and Method Thereof

#4
20250066679
2025-02-27

SYSTEMS, METHODS, AND DEVICES FOR PROCESSING CRUDE OIL

#5
20240391710
2024-11-28

ASSEMBLIES AND METHODS FOR MATERIAL EXTRACTION FROM RETENTION COLLECTIONS

#6
20240391709
2024-11-28

ASSEMBLIES AND METHODS FOR MATERIAL EXTRACTION FROM RETENTION COLLECTIONS

#7
20240391708
2024-11-28

ASSEMBLIES AND METHODS FOR MATERIAL EXTRACTION FROM RETENTION COLLECTIONS

#8
20240325946
2024-10-03

DISCHARGING DEVICE OF A PRESS SCREW SEPARATOR

#9
20240316482
2024-09-26

ADJUSTABLE RECEPTACLES

#10
20240304881
2024-09-12

SYSTEMS AND METHODS FOR BATTERY RECYCLING

#11
20240150210
2024-05-09

WASTE TREATMENT APPARATUS AND METHOD

#12
20240083130
2024-03-14

DEWATERING SYSTEM AND METHOD

#13
20240043304
2024-02-08

Circular rotary-disc dehydrator with multi-filter cylinder unit

#14
20230257277
2023-08-17

METHOD FOR COMPRESSION OF AQUEOUS SLURRY CONTAINING SOLID FOREIGN MATTER AND PAPER DUST, AND TREATMENT METHOD OF WASTE GYPSUM BOARD

#15
20230194081
2023-06-22

SOLID FECES TREATMENT APPARATUS AND INDIVIDUAL FECES TREATMENT SYSTEM INCLUDING SAME

#16
20230102465
2023-03-30

RECIPROCATING LAMINATION SPIRAL SOLID-LIQUID SEPARATOR

#17
20230097066
2023-03-30

Outer cylinder screen washing apparatus of screw press

#18
20230077658
2023-03-16

DEWATERING MACHINE CAPABLE OF CONTROLLING MOISTURE CONTENT

#19
20230059525
2023-02-23

Method, System and Stable for Phosphate Recovery from a Waste Stream

#20
20230011157
2023-01-12

Assemblies and methods for material extraction from retention collections

#21
20220348487
2022-11-03

Methods and systems for zero liquid discharge recycling of waste generated from manufacturing operations

#22
20220234933
2022-07-28

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

#23
20220204379
2022-06-30

Ultra-high temperature excrement solid-liquid separation extrusion sterilization integrated machine

#24
20220194831
2022-06-23

System and Method for Treating Wastewater That Includes Biosorption and Filtration

#25
20220184536
2022-06-16

Processing of red mud in bauxite refining

#26
20220143535
2022-05-12

Automatic Self-Cleaning Filter Driven by Submersible Actuator

#27
20220064044
2022-03-03

Solid-liquid separation device

#28
20210253462
2021-08-19

Multi plate screw press sludge dewatering machine

#29
20210236965
2021-08-05

Separation device and method to separate contaminants from contaminated water

#30
20210230038
2021-07-29

Auger screen with adjustable length press zone

#31
20210188682
2021-06-24

Device for sludge treatment

#32
20210146298
2021-05-20

Flue gas cleaning solution purification system and method thereof

#33
20210138369
2021-05-13

LAMINATED SPIRAL SOLID-LIQUID SEPARATOR WITH TORSIONAL PENDULUM MOTION

#34
20210087095
2021-03-25

Screw type separation device and wastewater treatment system

#35
20210001345
2021-01-07

System and method for drying and milling spent grain into flour

#36
20200354250
2020-11-12

Anaerobic digestion of organic fraction of solid waste with high quality digestate

#37
20200298151
2020-09-24

Solid-liquid separator and solid-liquid separation system

#38
20200283323
2020-09-10

INLINE DEWATERING SYSTEM

#39
20200254368
2020-08-13

METHOD FOR UNCLOGGING AN EXTRUDER

#40
20200223726
2020-07-16

Modular portable renewable energy microgeneration system

#41
20200223169
2020-07-16

Method for removing liquid from a slurry

#42
20200207654
2020-07-02

Apparatus and method to concentrate and dry generally organic solids and produce purified water therefrom

#43
20200129894
2020-04-30

Adjustable receptacles

#44
20200123035
2020-04-23

Two stage anaerobic digestion with intermediate hydrolysis

#45
20200109074
2020-04-09

Feedback loop for sludge filtering

#46
20200063340
2020-02-27

Method for dewatering of sludge from a pulp, paper or board making process

#47
20190367382
2019-12-05

System, device and method for production of high-nitrogen organic liquid fertilizer from ammonia rich wastewaters and digester effluents

#48
20190322553
2019-10-24

SYSTEM AND METHOD FOR SEPARATING NUTRIENTS FROM A WASTE STREAM

#49
20190210902
2019-07-11

Salt management system for portable renewable energy microgeneration system

#50
20190203368
2019-07-04

Electrochemical process for improving the grade of iron

#51
20190135661
2019-05-09

Electrochemical liquid treatment apparatus

#52
20190071340
2019-03-07

Method(s) and Apparatus For Treating Waste

#53
20190039933
2019-02-07

Sludge drying apparatus

#54
20190023598
2019-01-24

Dewatering systems and methods

#55
20190016829
2019-01-17

Systems and methods for dewatering a slurry that includes lignocellulosic biomass and liquid

#56
20180354834
2018-12-13

Apparatus for and method of processing a slurry containing organic components

#57
20180346362
2018-12-06

Multi plate screw press sludge dewatering machine

#58
20180257967
2018-09-13

Systems and methods for using chlorine dioxide to enhance drying

#59
20180230036
2018-08-16

Sludge dehydration system and sludge dehydration method

#60
20180170784
2018-06-21

Filtering Annuli for Screw Press

#61
20180170783
2018-06-21

Method for separating solids suspended or entrained in a liquid

#62
20180119038
2018-05-03

Method of and system for processing a slurry containing organic components

#63
20180099890
2018-04-12

Automated wastewater treatment system and methods

#64
20180050941
2018-02-22

Two stage anaerobic digestion with intermediate hydrolysis

#65
20170369344
2017-12-28

Processes and treatment systems for treating high phosphorous containing fluids

#66
20170072441
2017-03-16

Treatment of trade effluent from food waste disposal systems

#67
20170043548
2017-02-16

Screw press with filter plates

#68
20160355427
2016-12-08

SLUDGE DEHYDRATOR EQUIPPED WITH MAIN-AXIS SCREW CONVEYER SECTION AND NON-AXIS SCREW CONVEYER SECTION

#69
20160346788
2016-12-01

Organics recovery from dry fraction

#70
20160304373
2016-10-20

LOW ENERGY ACID MINE DRAINAGE TREATMENT PROCESS AND SYSTEM

#71
20160214879
2016-07-28

Treatment of waste products with anaerobic digestion

#72
20160207806
2016-07-21

Method and device for processing solid waste

#73
20160115066
2016-04-28

Sludge dehydration system and sludge dehydration method

#74
20160115065
2016-04-28

Recovery device and recovery method for recovering specific material from sludge

#75
20160023132
2016-01-28

Elongated scraper profile

#76
20150274556
2015-10-01

Processes and treatment systems for treating high phosphorous containing fluids

#77
20150225263
2015-08-13

Electrokinetic process for consolidation of oil sands tailings

#78
20150165709
2015-06-18

Method for removing liquid from a slurry

#79
20150122729
2015-05-07

Method and apparatus for removing organic substances, nitrogen and phosphorus from highly concentrated organic waste water

#80
20150017048
2015-01-15

Single flight screw, a single flight high pressure screw pump and compactor containing such a pump

#81
20140367320
2014-12-18

Sludge condensing machine

#82
20140326148
2014-11-06

DEWATERING METHOD AND APPARATUS

#83
20140246291
2014-09-04

Apparatus for the passage and conveyance of compressible material

#84
20140131272
2014-05-15

Anaerobic treatment of industrial wastewater

#85
20130277319
2013-10-24

Sludge screw thickener with screen rotation during cleaning

#86
20130160320
2013-06-27

Drying/carbonizing device and method thereof

#87
20130098765
2013-04-25

Apparatus and a method for the dehydratation treatment of waste sludge

#88
20130081934
2013-04-04

SYSTEMS AND METHODS FOR CONVERTING SEWAGE SLUDGE INTO A COMBUSTIBLE FUEL

#89
20120312177
2012-12-13

Sludge dehydrating apparatus

#90
20120261351
2012-10-18

SYSTEM AND METHOD FOR TREATING WASTE

#91
20120255872
2012-10-11

Electrokinetic Process And Apparatus For Consolidation Of Oil Sands Tailings

#92
20110297016
2011-12-08

Concentrator-integrated screw press

#93
20110084029
2011-04-14

Waste treatment system

#94
20100213137
2010-08-26

Sludge thickening method

#95
20100200426
2010-08-12

APPARATUS AND METHOD FOR PHASE SEPARATION OF LIQUIDS AND SOLIDS

#96
20100199514
2010-08-12

OPTIMIZED APPARATUS AND METHOD FOR MANURE MANAGEMENT

#97
20100018917
2010-01-28

Method and apparatus for processing organic waste

#98
20100006491
2010-01-14

Device for dehumidifying and compacting solids contained in sewage for disposal

#99
20090065448
2009-03-12

Slurry Handling and Separating System

#100
20090057235
2009-03-05

Sludge thickening device

#101
20070256353
2007-11-08

Method for dewatering a water-containing combustible solid

#102
20070240469
2007-10-18

Method and apparatus for treating pig manure

#103
20070029245
2007-02-08

Device for thickening or dehydrating sludges, watery sediments or the like, especially surplus sludge in sewage treatment plants

#104
20060138054
2006-06-29

Apparatus and method for processing of animal manure wastewater

#105
20060138053
2006-06-29

Apparatus and method for processing of animal manure wastewater

#106
19055052
2025-11-04

System and process for reducing PFAS and microplastics in biosolids using hydrodynamic cavitation and foam fractionation

#107
17990560
2026-02-17

Method of separating waste into bio-available components

#108
17245333
2021-12-21

Zero liquid discharge recycling system for PCB FAB, general metal finishing, and chemical milling

#109
17245276
2021-12-21

Zero liquid discharge recycling system for PCB FAB, general metal finishing, and chemical milling

#110
15973731
2018-08-21

Device for separating water from sludge

#111
15789996
2018-05-01

Separation of clean water from effluent streams