ClassID:

28809

B01D21/267 - CPC Classification

Classification description:

Separation of suspended solid particles from liquids by sedimentation; Separation of sediment aided by centrifugal force or centripetal force by using a cyclone

Recent Application in this class:
#1
20260146507
2026-05-28

OPEN LOOP BEAD RECOVERY SYSTEM

#2
20260138079
2026-05-21

SYSTEMS FOR REMOVING CARBON DIOXIDE FROM A CARBON DIOXIDE CONTAINING GAS, AND RELATED METHODS

#3
20260110004
2026-04-23

PROCESS FOR PREPARING LACTIC ACID

#4
20260092008
2026-04-02

METHOD, SYSTEM, AND APPARATUS FOR MINERALIZATION OF CARBON DIOXIDE WITH INDUSTRIAL ALKALI WASTE

#5
20260070004
2026-03-12

Sand-manure liquid separation plant, a use of the plant, and a method of using the plant

#6
20260060280
2026-03-05

FRACTIONATED STILLAGE PROCESSING

#7
20260055026
2026-02-26

CONCRETE RECYCLING SYSTEM AND METHOD OF USE

#8
20250387812
2025-12-25

GEOTHERMAL POWER GENERATION SYSTEM

#9
20250340472
2025-11-06

Salt Separation and Destruction of PFAS Utilizing Reverse Osmosis and Salt Separation

#10
20250303325
2025-10-02

Sand-manure liquid separation plant, a use of the plant, and a method of using the plant

#11
20250302069
2025-10-02

SINGLE CELL PROTEIN PROCESS AND PRODUCT- OXYGEN FREE

#12
20250296108
2025-09-25

PALLET COATING WASTE RECOVERY SYSTEM

#13
20250263989
2025-08-21

CENTRIFUGE-FREE FLUID CLEANING SYSTEMS AND METHODS FOR SEPARATION OF FINE SOLIDS IN OILFIELD APPLICATIONS

#14
20250262568
2025-08-21

Flow Control Devices And Methods For Stacked Tray Type Vortex Grit Removal Systems

#15
20250256291
2025-08-14

FOREIGN MATTER REMOVAL DEVICE

#16
20250256224
2025-08-14

SAND SEPERATION CONTROL SYSTEM AND METHOD

#17
20250101849
2025-03-27

CYCLONIC SOLIDS REMOVAL UNIT FOR DOWNHOLE OIL-WATER SEPARATION (DOWS)

#18
20250099877
2025-03-27

Disk-Pack Turbine

#19
20250090981
2025-03-20

APPARATUS, SYSTEMS, AND METHODS FOR AUTOMATED SEPARATION OF SAND FROM A WELLBORE SLURRY

#20
20250058250
2025-02-20

Concentric Sloping Plate Enhanced Vertical Compact Flotation Unit

#21
20250041775
2025-02-06

WATER RECOVERY SYSTEMS AND METHODS

#22
20250012526
2025-01-09

APPARATUS AND METHOD FOR CLEANING HVAC COOLING COILS

#23
20240425769
2024-12-26

MULTIPLE FLUIDIZED BED OR SPOUTED BED REACTORS FOR PLASTICS PYROLYSIS

#24
20240424429
2024-12-26

AUTODIVERSION SAND SYSTEMS AND SYSTEMS AND METHODS TO PERFORM AUTODIVERSION OF A SAND SYSTEM

#25
20240375127
2024-11-14

APPARATUS AND PROCESS FOR SEPARATING COMPONENTS OF A MULTIPHASE HYDROCARBON STREAM

#26
20240359115
2024-10-31

SAND REMOVAL DEVICE FOR COOLING TOWER AND COOLING TOWER STRUCTURE

#27
20240343614
2024-10-17

DEWATERING TRAILER SYSTEM

#28
20240342632
2024-10-17

Intake Module for Water Treatment Systems

#29
20240325949
2024-10-03

CUTTING FLUID CIRCULATION DEVICE

#30
20240325945
2024-10-03

Method For Combined Hydrocracking of Heavy Petroleum Feedstock, Comprising The Separation of a Spent Additive From Unconverted Hydrocracking Residue and Its Drying

#31
20240318515
2024-09-26

SYSTEM AND METHOD FOR PROCESSING A SLURRY

#32
20240182384
2024-06-06

Method and Device for Converting Waste Plastic Pyrolysis Oil into Light Olefins with High Yield

#33
20240182341
2024-06-06

Salt Separation and Destruction of PFAS Utilizing Reverse Osmosis and Salt Separation

#34
20240166952
2024-05-23

TWO STEP PROCESS FOR CHEMICALLY RECYCLING PLASTIC WASTE

#35
20240058727
2024-02-22

HOT ROLLING MILL WITH SEPARATOR FOR MILL SCALE FROM WASTEWATER

#36
20240025782
2024-01-25

Anaerobic digestion device for organic solid waste based on uncoupling of hydraulic retention time (HRT) from sludge retention time (SRT)

#37
20240024801
2024-01-25

SAND SEPARATION CONTROL SYSTEM AND METHOD

#38
20240017191
2024-01-18

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#39
20240001264
2024-01-04

Disk-pack turbine

#40
20230417498
2023-12-28

Apparatus and method for cleaning HVAC cooling coils

#41
20230416636
2023-12-28

Method for pre-hydrotreating and purifying waste lubricating oil

#42
20230249104
2023-08-10

Disk-Pack Housing

#43
20230166987
2023-06-01

Subsea sediment separation and filtration system

#44
20230136851
2023-05-04

Retrofit hot water heat pump

#45
20230090215
2023-03-23

Gas cooling-scrubbing apparatus and method

#46
20230085131
2023-03-16

PALLET COATING WASTE RECOVERY SYSTEM

#47
20230075723
2023-03-09

Cyclone Filter

#48
20230017568
2023-01-19

METHOD AND SYSTEM FOR ZERO DISCHARGE TREATMENT OF DESULFURIZATION WASTEWATER SUITABLE FOR MULTIPLE WORKING CONDITIONS

#49
20230016318
2023-01-19

Apparatus and method for cleaning HVAC cooling coils

#50
20230009302
2023-01-12

Method of Treating a Liquid with Nanobubbles

#51
20230002247
2023-01-05

FRAC SAND SEPARATOR SYSTEM

#52
20230001426
2023-01-05

Fluid-borne particle classification system and method of use

#53
20220403261
2022-12-22

Method and System for Directly Cracking Crude Oil to Prepare Olefin

#54
20220403250
2022-12-22

TREATMENT OF HYDROCARBON-CONTAMINATED MATERIALS

#55
20220396680
2022-12-15

Method of Separating a First Contaminant from a Feed Stream and Reactor System for Carrying Out the Method

#56
20220379236
2022-12-01

External circulating slurry reactive crystallizer

#57
20220378065
2022-12-01

SINGLE CELL PROTEIN PROCESS AND PRODUCT

#58
20220331720
2022-10-20

Dewatering screen

#59
20220307363
2022-09-29

Desanding wellhead

#60
20220250095
2022-08-11

SEPARATING SYSTEM

#61
20220248714
2022-08-11

SINGLE CELL PROTEIN PROCESS AND PRODUCT- OXYGEN FREE

#62
20220212140
2022-07-07

HUMIDITY CONTROL DEVICE

#63
20220183318
2022-06-16

Fractionated stillage separation

#64
20220177613
2022-06-09

Washing process

#65
20220152633
2022-05-19

Retrofit attachments for water treatment systems

#66
20220145654
2022-05-12

Pool cleaner with cyclonic flow

#67
20220111477
2022-04-14

SLUDGE TREATMENT DEVICE AND SLUDGE TREATMENT SYSTEM

#68
20220106212
2022-04-07

System for industrial and hydrocarbon wastewater treatment

#69
20220073370
2022-03-10

Apparatus and method for optimizing hydro-cyclone separation in a filtering system

#70
20220064544
2022-03-03

Coke and tar removal from a furnace effluent

#71
20220062796
2022-03-03

Multiphase separation and pressure letdown method

#72
20220054957
2022-02-24

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#73
20220047970
2022-02-17

Sand separation control system and method

#74
20220041472
2022-02-10

Suction pile cofferdam

#75
20220040710
2022-02-10

Aerated hydrocyclone apparatus and method for cyclonic froth separation

#76
20220040601
2022-02-10

Water processing system and arrangement

#77
20220002888
2022-01-06

System and method for purifying depleted brine

#78
20210394919
2021-12-23

Aircraft fuel ice capturing filter housing, aircraft fuel ice capturing filter device, and method of use

#79
20210394918
2021-12-23

Aircraft fuel ice capturing filter housing, aircraft fuel ice capturing filter device, and method of use

#80
20210387112
2021-12-16

Oil and grit separator system with twin vortex

#81
20210387107
2021-12-16

DESALINATION SYSTEM BASED ON THE FORMATION OF DROPLETS

#82
20210372209
2021-12-02

System and method for processing a slurry

#83
20210363029
2021-11-25

Frac sand separator system

#84
20210331094
2021-10-28

Spin plate cyclonic filter

#85
20210322900
2021-10-21

Water treatment system

#86
20210308690
2021-10-07

Classifying apparatus, systems and methods

#87
20210299595
2021-09-30

Differential pressure based automated sand detection and handling system for oil and gas well operations

#88
20210253435
2021-08-19

Treatment process for recycling silicon ingot cutting waste

#89
20210252430
2021-08-19

METHOD AND SYSTEM FOR EVACUATING AGGREGATES ACCUMULATED IN THE BOTTOM OF A TANK OF A DESALTER OR A DESANDER

#90
20210230953
2021-07-29

Low gravity solids reducing processes, systems and methods, and solids reducing processes, systems and methods for drilling fluids, using collision forces within a pressure drop chamber

#91
20210205735
2021-07-08

Sand separation control system and method

#92
20210188683
2021-06-24

System and method for treating high-salt high-organic wastewater and recovering energy

#93
20210188680
2021-06-24

WASTE TREATMENT DEVICE

#94
20210154601
2021-05-27

SAND SEPARATOR WITH GAS VENT

#95
20210154598
2021-05-27

Systems and methods for separating multi-phase compositions

#96
20210130205
2021-05-06

Recovery system of composite powder carrier in HPB municipal wastewater treatment

#97
20210121823
2021-04-29

Device and system for decomposing and oxidizing gaseous pollutant

#98
20210106930
2021-04-15

Hydrocyclone vibration monitoring system and method

#99
20210086108
2021-03-25

Scrubbing backwash filter

#100
20210079762
2021-03-18

Experimental device and experimental method for natural gas hydrate solid-state fluidized mining and crushing

#101
20210077921
2021-03-18

Sand eliminator measurement tank

#102
20210071489
2021-03-11

Managing dielectric properties of pulsed power drilling fluids

#103
20210054763
2021-02-25

Filtration system for geared turbofan tank

#104
20210040394
2021-02-11

DILUTED BITUMEN FINE WATER DROPLETS CAPTURE

#105
20210024397
2021-01-28

Unit for treating a drilling mud and corresponding method

#106
20210010364
2021-01-14

Filtration vessel

#107
20210001355
2021-01-07

Disk-pack turbine for water treatment systems

#108
20200407233
2020-12-31

Purification of boric acid with ion exchange process

#109
20200378815
2020-12-03

SOLID LEVEL MEASUREMENT WITH VIBRATING ROD SENSORS

#110
20200378235
2020-12-03

Downhole pumping system with cyclonic solids separator

#111
20200377805
2020-12-03

METHODS AND SYSTEMS FOR REMOVING GAS CONTAMINANTS FROM FLOWING SOLIDS

#112
20200376526
2020-12-03

Ultrafine bubble cleaning method using ultrafine bubble-containing liquid, apparatus therefor, and dissolved air floatation apparatus

#113
20200346139
2020-11-05

Sand traps for use in oil and gas extraction operations

#114
20200318446
2020-10-08

Low gravity solids reducing processes, systems and methods, and solids reducing processes, systems and methods for drilling fluids, using collision forces within a pressure drop chamber

#115
20200316617
2020-10-08

Liquid-liquid-solid three-phase separator for waste oil

#116
20200308948
2020-10-01

Oil, water, gas and solid particle separation in oil and/or gas production

#117
20200282338
2020-09-10

Sand removal tank

#118
20200282334
2020-09-10

Fluid treatment system

#119
20200246726
2020-08-06

Water treatment system and method

#120
20200207807
2020-07-02

Method and system for producing a zein protein product from a whole stillage byproduct produced in a corn dry-milling process

#121
20200188817
2020-06-18

Separator system with viscosity-based sand-level sensor

#122
20200188816
2020-06-18

Water treatment system and method

#123
20200181930
2020-06-11

Pool cleaner with cyclonic flow

#124
20200179954
2020-06-11

Fluid separator device

#125
20200179951
2020-06-11

Separator device

#126
20200164309
2020-05-28

Device and system for decomposing and oxidizing gaseous pollutant

#127
20200155975
2020-05-21

Apparatus, systems, and methods for automated separation of sand from a wellbore slurry

#128
20200155968
2020-05-21

UNIVERSAL SEPARATOR SYSTEM AND METHOD

#129
20200149833
2020-05-14

Apparatus and method for cleaning HVAC cooling coils

#130
20200148555
2020-05-14

Method for water purification

#131
20200148554
2020-05-14

System and method for water purification

#132
20200139300
2020-05-07

Device and system for decomposing and oxidizing gaseous pollutant

#133
20200139297
2020-05-07

Device and system for decomposing and oxidizing gaseous pollutant

#134
20200139269
2020-05-07

Fractionated stillage separation and feed products

#135
20200131870
2020-04-30

System and method for processing a slurry

#136
20200128855
2020-04-30

Fractionated stillage separation and feed products

#137
20200116004
2020-04-16

Skid mounted wellhead desanders and flowback systems

#138
20200113209
2020-04-16

Fractionated stillage separation and feed products

#139
20200113207
2020-04-16

Single cell protein process and product

#140
20200094265
2020-03-26

METHOD FOR TREATING A SALT SOLUTION USING MULTISTAGE SEPARATION PROCESSES, AND TREATMENT SYSTEM FOR THIS PURPOSE

#141
20200087175
2020-03-19

REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM

#142
20200078895
2020-03-12

COOLANT SUPPLY DEVICE

#143
20200072004
2020-03-05

Integrated multi-stage sand separation system

#144
20200070066
2020-03-05

System and method for fluid processing

#145
20200061634
2020-02-27

Method and system for cleaning sand

#146
20200061492
2020-02-27

Extraction of organic products from plant and animal materials

#147
20200047088
2020-02-13

Fluid treatment system and method of use utilizing a membrane

#148
20200016611
2020-01-16

CENTRIFUGAL SOLIDS SEPARATOR

#149
20190351469
2019-11-21

SYSTEM AND METHOD FOR TREATMENT OF CONTAMINATED SEDIMENTS USING FREE RADICAL CHEMICAL REACTION AND PHASE SEPARATION PROCESSES

#150
20190351429
2019-11-21

Method and apparatus for washing and grading sand

#151
20190308204
2019-10-10

Weighted median method for PST control signal determination

#152
20190289690
2019-09-19

Water treatment methods

#153
20190282923
2019-09-19

DISCRETE EXTRACT COLLECTION SYSTEM FOR CO2-BASED FLUID EXTRACTION

#154
20190275532
2019-09-12

Classifying apparatus, systems and methods

#155
20190264562
2019-08-29

Process and system for improved reclamation of mined lands

#156
20190232303
2019-08-01

Hydrocyclone

#157
20190232204
2019-08-01

Device for treating an effluent and method for treating an effluent

#158
20190210042
2019-07-11

PARTICLE SETTING DEVICES

#159
20190203367
2019-07-04

System and method for purifying depleted brine

#160
20190201841
2019-07-04

Integrated Wet Scrubbing System

#161
20190184309
2019-06-20

Condensible gas botanical extraction systems and methods

#162
20190184308
2019-06-20

Condensible gas botanical extraction systems and methods

#163
20190178071
2019-06-13

Solid particle separation in oil and/or gas production

#164
20190126172
2019-05-02

Device for medium separation

#165
20190118192
2019-04-25

Separation device for separating a fluid

#166
20190111440
2019-04-18

Solid waste treatment process

#167
20190106953
2019-04-11

Using a liquefied gas as a centrifuge aid

#168
20190092646
2019-03-28

Methods and compositions for bauxite beneficiation

#169
20190063984
2019-02-28

External solids level detection for a collection vessel

#170
20190063203
2019-02-28

Oil, water, gas and solid particle separation in oil and/or gas production

#171
20190060913
2019-02-28

ULTRAFINE BUBBLE CLEANING METHOD USING ULTRAFINE BUBBLE-CONTAINING LIQUID, APPARATUS THEREFOR, AND DISSOLVED AIR FLOATATION APPARATUS

#172
20190060796
2019-02-28

CENTRIFUGAL FILTER

#173
20190030547
2019-01-31

Separator for separating solid matter from a fluid

#174
20190010946
2019-01-10

Fluid extraction system and related method of controlling operating speeds of electric machines thereof

#175
20180369835
2018-12-27

Hydrocyclone separator

#176
20180369720
2018-12-27

Hydrocyclone separator

#177
20180345185
2018-12-06

Magnetic filter for a central heating system

#178
20180340697
2018-11-29

Connection assembly

#179
20180333654
2018-11-22

Fluid Treatment System and Method of Use Utilizing a Membrane

#180
20180328059
2018-11-15

Pool cleaner canister handle

#181
20180326326
2018-11-15

Heavy solids separator

#182
20180283406
2018-10-04

METHOD AND DEVICE FOR PUMPING A PRODUCT BY SUCTION

#183
20180243755
2018-08-30

Method and system for cleaning sand

#184
20180242424
2018-08-23

Desalinization apparatus

#185
20180229155
2018-08-16

Method for separating mill scale from wastewater

#186
20180208859
2018-07-26

Topside oil production equipment system for reduction in space and weight

#187
20180200733
2018-07-19

Ceramic hydrocyclone

#188
20180193777
2018-07-12

Water and debris recovery system

#189
20180193774
2018-07-12

Floating chopper sludge weir

#190
20180171730
2018-06-21

SYSTEM AND METHOD FOR PROCESSING A SLURRY

#191
20180161785
2018-06-14

Multi-stage axial flow cyclone separator

#192
20180155947
2018-06-07

Pool cleaner with cyclonic flow

#193
20180148918
2018-05-31

Ring grit remover

#194
20180148362
2018-05-31

VEHICLE-MOUNTED PORTABLE APPARATUS FOR CLARIFICATION AND DISINFECTION OF WASTEWATER PRODUCED BY THE WASHING OF ROAD DRAINAGE INLETS AND DRAINS AND TUNNELS, AND METHOD FOR CLARIFICATION AND DISINFECTION OF WASTEWATER PRODUCED BY THE WASHING OF ROAD DRAINAGE INLETS AND DRAINS AND TUNNELS

#195
20180134599
2018-05-17

UNIT FOR TREATING A DRILLING MUD AND CORRESPONDING METHOD

#196
20180126450
2018-05-10

Molding flask for a molding machine and a molding process using the molding flask

#197
20180126300
2018-05-10

Water treatment system and water

#198
20180099294
2018-04-12

Separator device

#199
20180086655
2018-03-29

Portable liquid recovery system with optional preliminary processor and feed

#200
20180085687
2018-03-29

Particle trap/filter and systems related thereto

#201
20180057282
2018-03-01

Pipeline transportation method of coal

#202
20180056211
2018-03-01

Superfluid extraction apparatus

#203
20180043287
2018-02-15

Optimized recycling of drilling fluids by coordinating operation of separation units

#204
20180036655
2018-02-08

Telescopic fitment for a magnetic filter

#205
20180028943
2018-02-01

Foreign substance removal apparatus, circulation system and vehicle cooling system

#206
20180021701
2018-01-25

Fluid separator

#207
20180015413
2018-01-18

Abatement device

#208
20170368481
2017-12-28

Cylindrical filter screen with tensioning mechanism

#209
20170354900
2017-12-14

METHOD FOR PURIFYING EASILY POLYMERIZABLE SUBSTANCE

#210
20170340994
2017-11-30

Magnetic filter for a central heating system

#211
20170297038
2017-10-19

Fluid separator device

#212
20170291124
2017-10-12

Disk-pack turbine

#213
20170284182
2017-10-05

Separator and Method of Separation

#214
20170247958
2017-08-31

Modular Pressure Control and Drilling Waste Management Apparatus for Subterranean Borehole

#215
20170247896
2017-08-31

Pool cleaner power coupling

#216
20170239594
2017-08-24

Monitoring and controlling hydrocyclones using vibration data

#217
20170233317
2017-08-17

System for removing salt from a rich mono ethylene glycol stream

#218
20170232454
2017-08-17

Disk-pack turbine

#219
20170232366
2017-08-17

De-sanding tank with conical bottom

#220
20170190599
2017-07-06

Hydrocyclone and method to remove particles from liquid streams

#221
20170184356
2017-06-29

Apparatus and method for cleaning HVAC cooling coils

#222
20170175009
2017-06-22

Topside oil production equipment system for reduction in space and weight

#223
20170152977
2017-06-01

Separator device

#224
20170151573
2017-06-01

APPARATUS AND PROCESS FOR FINES RECOVERY

#225
20170087609
2017-03-30

System and method for treatment of contaminated sediments or soils using free radical chemical reaction and phase separation processes

#226
20170087608
2017-03-30

CLOSED-CIRCUIT MOBILE SYSTEM FOR RECOVERING CONTAMINATED SOILS AND PROCESS FOR RECOVERING CONTAMINATED SOILS

#227
20170081930
2017-03-23

System and Method for Cleaning Wellbore Cuttings and Drilling Fluid

#228
20170081426
2017-03-23

Starch settling recovery system

#229
20170077847
2017-03-16

Control sub-system and related method of controlling electric machine in fluid extraction system

#230
20170074524
2017-03-16

Connection assembly

#231
20170074081
2017-03-16

Fluid extraction system and related method of controlling operating speeds of electric machines thereof

#232
20170072408
2017-03-16

ULTRAFINE BUBBLE CLEANING METHOD USING ULTRAFINE BUBBLE-CONTAINING LIQUID, APPARATUS THEREFOR, AND DISSOLVED AIR FLOATATION APPARATUS

#233
20170065986
2017-03-09

Debris separator

#234
20170043354
2017-02-16

Connection assembly

#235
20170038169
2017-02-09

Low energy sweeper method

#236
20170036367
2017-02-09

Substrate cutting system

#237
20170016288
2017-01-19

System and method for processing a slurry

#238
20160355413
2016-12-08

Centrifugal solid-liquid separation device and water treatment device using same

#239
20160341024
2016-11-24

Systems and methods for subsea fluid phase separation

#240
20160340201
2016-11-24

Process for producing hemataite for ironmaking

#241
20160339383
2016-11-24

Desulfurization apparatus and exhaust gas processing system using the same

#242
20160332172
2016-11-17

Hydronic air separator

#243
20160332094
2016-11-17

Fluid separation systems and methods

#244
20160324205
2016-11-10

Method and apparatus for improving efficiency and reliability of stillage processing

#245
20160317950
2016-11-03

Separator for oil well produced fluid, and separation device comprising the same

#246
20160263589
2016-09-15

Hydroclone with improved cleaning assembly

#247
20160263587
2016-09-15

Vortex-type grit chamber

#248
20160260507
2016-09-08

CONTAINMENT FILTERED VENTING SYSTEM (CFVS) FOR NUCLEAR POWER PLANT

#249
20160250571
2016-09-01

Scrubbing backwash filter

#250
20160243464
2016-08-25

Wastewater separation system

#251
20160228797
2016-08-11

Water treatment system and water

#252
20160215516
2016-07-28

Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system

#253
20160214120
2016-07-28

Stability control system for a hydrocyclone

#254
20160160367
2016-06-09

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Ballasted clarification system

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System and method for water purification

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Method and apparatus for wastewater treatment using gravimetric selection

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Bi-directional lower cone dilution device

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Sand separator interface detection

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Joint support system for hydrocyclone liner

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Ring grit remover

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System for removing salt from a rich mono ethylene glycol stream

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Hydroclone with vortex flow barrier

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Method for controlling desalination and salt discharging in supercritical water oxidation system

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Water and debris recovery system

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Magnetic separator and release tool therefor

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Method for treating ballast water and device for treating ballast water used therefor

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Developing solution processing device and processing method

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Separator device

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Apparatus for separation and processing of materials

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Water treatment system and method

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Wastewater treatment system including irradiation of primary solids

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Abrasion resistant gas separator

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Retrofit attachments for water treatment systems

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Three-phase separation system for drilling fluids and drill cuttings