ClassID:

86275

C02F2001/5218 - CPC Classification

Classification description:

Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities Crystallization

Recent Application in this class:
#1
20260125298
2026-05-07

ELECTRO-DIALYTIC CRYSTALLIZERS AND METHODS OF USE THEREOF

#2
20260116799
2026-04-30

METHOD FOR RESOURCEFUL TREATMENT OF PHOSPHORUS-CONTAINING WASTEWATER

#3
20260115628
2026-04-30

MINERAL RECOVERY FROM CONCENTRATED BRINES

#4
20260103414
2026-04-16

SULPHATE REMOVAL USING FLUIDIZED BED REACTOR

#5
20260042684
2026-02-12

DESALINATION AND CRYSTALLIZATION SYSTEM OPERATING WITHOUT BRINE

#6
20260028255
2026-01-29

APPARATUS FOR TREATING WASTEWATER AND METHOD OF TREATING WASTEWATER

#7
20260008708
2026-01-08

TREATING PRODUCED WATER FOR BENEFICIAL REUSE

#8
20260008705
2026-01-08

SYSTEM AND METHOD FOR ADVANCED DEFLUORINATION OF WASTEWATER

#9
20250340464
2025-11-06

SYSTEM AND METHOD FOR RECOVERY OF PHOSPHATE FROM WASTEWATER AS GRANULAR NATURAL STRUVITE

#10
20250320578
2025-10-16

TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATIONS OF SILICA, IRON AND MANGANESE

#11
20250313498
2025-10-09

SYSTEM AND METHOD FOR SOFTENING HIGH-SALINITY WATER VIA SELF-INDUCED CALCIUM BICARBONATE CRYSTALLIZATION IN FLUIDIZED BED

#12
20250296862
2025-09-25

ULTRA-HIGH-CONCENTRATION SEAWATER DESALINATION PROCESS FOR VALUABLE MINERAL RECOVERY AND HIGH-PURITY FRESHWATER PRODUCTION

#13
20250276927
2025-09-04

Extracting Carbon Dioxide from Seawater Using Substrate-Induced Nucleation

#14
20250243096
2025-07-31

Microfluidic Synthesis and Crystallization of Pollutants

#15
20250230082
2025-07-17

METHOD FOR TREATING HIGH-CONCENTRATION FERMENTATION BY-PRODUCTS GENERATED IN AMINO ACID FERMENTATION PROCESS

#16
20250197265
2025-06-19

Low-carbon near zero emission process of industrial waste water

#17
20250163543
2025-05-22

LITHIUM RECOVERY SYSTEM FOR BLACK MASS

#18
20250100916
2025-03-27

METHOD FOR REMOVING INORGANIC SUBSTANCES FROM WASTEWATER

#19
20250074790
2025-03-06

ZERO LIQUID DISCHARGE EUTECTIC FREEZE DESALINATION WITH INTERMEDIATE COLD LIQUID

#20
20250051208
2025-02-13

SYSTEMS AND METHODS FOR HIGH-EFFICIENCY NUTRIENT REMOVAL AND RECOVERY FROM WASTE STREAMS

#21
20240383765
2024-11-21

PROCESS TO RECOVER AMMONIUM BICARBONATE FROM WASTEWATER

#22
20240359137
2024-10-31

PROCESS OF BRINE CONCENTRATION AND METHOD FOR TREATMENT OF THE SAME

#23
20240271026
2024-08-15

TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATION OF SILICA, IRON AND LITHIUM

#24
20240270612
2024-08-15

SELECTIVE PRECIPITATION OF SOLUTES FROM AQUEOUS SOLUTIONS AND RELATED SYSTEMS

#25
20240254019
2024-08-01

Enhanced flocculation of intractable slurries using silicate ions

#26
20240239693
2024-07-18

ELECTROCHEMICAL DEVICE FOR TREATING WATER

#27
20240199454
2024-06-20

Process for Removing Hardness and Total Organic Carbon from Drinking Water

#28
20240198288
2024-06-20

SUSTAINABLE DESALINATION SYSTEMS AND METHODS USING RECYCLED BRINE STREAMS

#29
20240190743
2024-06-13

METHOD FOR TREATING ALKALINE FLUORINE-CONTAINING WASTEWATER BY COMBINING INDUCED CRYSTALLIZATION METHOD WITH TUBULAR MEMBRANE FILTER

#30
20240166543
2024-05-23

METHODS OF SEAWATER SOFTENING FOR DESALINATION AND MINERAL EXTRACTION

#31
20240092663
2024-03-21

TREATMENT METHOD OF LEACHATE OF HAZARDOUS WASTE LANDFILL SITE

#32
20240091668
2024-03-21

System and Method for Cleaning of a Forced-Circulation Evaporative Crystallizer

#33
20240043302
2024-02-08

A HYBRID PROCESS AND SYSTEM FOR RECOVERING WATER

#34
20230399249
2023-12-14

WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS

#35
20230382768
2023-11-30

PURIFICATION METHOD FOR LANDFILL LEACHATE

#36
20230339794
2023-10-26

REMOVAL OF HARDNESS USING TEMPLATE ASSISTED CRYSTALLIZATION FOR ELECTRODIALYSIS DESALINATION OF SALINE WATER

#37
20230322567
2023-10-12

METHODS FOR REMOVING POTASSIUM, RUBIDIUM, AND CESIUM, SELECTIVELY OR IN COMBINATION, FROM BRINES AND RESULTING COMPOSITIONS THEREOF

#38
20230271864
2023-08-31

PROCESS FOR ENRICHING PHOSPHORUS AND RECOVERING BLUE IRON ORE BY USING BIOFILM METHOD

#39
20230234870
2023-07-27

System and method for treating reverse-osmosis concentrated water with high temporary hardness

#40
20230219831
2023-07-13

Enhanced flocculation of intractable slurries using silicate ions

#41
20230130758
2023-04-27

Generator of a vortex braid broken up into a system of toroid vortices

#42
20230100630
2023-03-30

Processes and systems for treating sour water

#43
20230085171
2023-03-16

Treated geothermal brine compositions with reduced concentration of silica, iron and lithium

#44
20230065608
2023-03-02

CRYSTALLIZATION OF SALTS FROM HIGH PRESSURE REVERSE OSMOSIS CONCENTRATE

#45
20230038572
2023-02-09

SYSTEM FOR PRODUCING MAGNESIUM HYDROXIDE

#46
20230002250
2023-01-05

Process for controlling treatment of waste fluid generated during petrochemical process using incinerator

#47
20220380243
2022-12-01

DIRECT SOLVENT CONTACT CRYSTALLIZATION ZERO-LIQUID DISCHARGE DESALINATION WITH VOLATILE HYDROPHOBIC RECOVERY AGENT REGENERATION

#48
20220371926
2022-11-24

Sewage treatment device capable of controlling product crystallization granularity and sewage treatment method

#49
20220371922
2022-11-24

Systems and methods for activating and dewatering sludge using acoustic pressure shock waves

#50
20220363565
2022-11-17

Equipment and procedure for the extraction of solids from contaminated fluids

#51
20220348487
2022-11-03

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

#52
20220348482
2022-11-03

Capacitive deionization process

#53
20220281764
2022-09-08

System and method for treating evaporator blowdown

#54
20220249983
2022-08-11

Mineral recovery from concentrated brines

#55
20220227637
2022-07-21

Process to recover ammonium bicarbonate from wastewater

#56
20220144655
2022-05-12

Method for concentrating and purifying eluate brine for the production of a purified lithium compound

#57
20220106211
2022-04-07

Fluidized bed pellet reactor water softener and process for softening water

#58
20220105467
2022-04-07

PRECIPITATION SYSTEM AND PRECIPITATION METHOD

#59
20220017395
2022-01-20

Advanced phosphorous recovery process and plant

#60
20220009808
2022-01-13

Method for removing calcium ions from high concentration organic wastewater

#61
20210402322
2021-12-30

APPARATUS AND METHOD FOR CRYSTALLISATION

#62
20210363032
2021-11-25

Sour water treatment

#63
20210331960
2021-10-28

Zero-liquid discharge (ZLD) wastewater treatment apparatus and method

#64
20210331950
2021-10-28

METHOD AND ASSEMBLY FOR RECOVERING MAGNESIUM AMMONIUM PHOSPHATE

#65
20210300802
2021-09-30

Process and apparatus for sized nutrient recovery from wastewater by elutriation

#66
20210246529
2021-08-12

Integrated lithium extraction

#67
20210238060
2021-08-05

Ion-exchange resin regeneration system

#68
20210230020
2021-07-29

Desalting apparatus using solvent and the method thereof

#69
20210205731
2021-07-08

TREATMENT OF PHOSPHATE-CONTAINING WASTEWATER AND METHODS FOR FINES CONTROL

#70
20210198125
2021-07-01

Method for recovering n from a liquid waste stream

#71
20210188668
2021-06-24

Method and system for treating high salinity water

#72
20210179458
2021-06-17

Method and assembly for recovering magnesium ammonium phosphate

#73
20210170330
2021-06-10

Ammonia gas removal system using CO2 ultrafine bubble

#74
20210163322
2021-06-03

Processes and systems for treating sour water

#75
20210155840
2021-05-27

Treated geothermal brine compositions with reduced concentration of silica, iron and lithium

#76
20210122633
2021-04-29

Technology of iodine extracting from formation and associated water of oil and gas fields

#77
20210114879
2021-04-22

Method for recovering N, K, and P from liquid waste stream

#78
20210107813
2021-04-15

SYSTEMS AND PROCESSES FOR PRODUCING POTASSIUM SULFATE, BARIUM SULFATE, AND/OR CHLORIDE SALTS FROM WASTE STREAMS

#79
20210077917
2021-03-18

Method and apparatus with outlet for extracting molten salt

#80
20210032133
2021-02-04

Method and assembly for recovering magnesium ammonium phosphate

#81
20210017059
2021-01-21

Apparatus and method for treating waste water containing ammonium salts

#82
20200392601
2020-12-17

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

#83
20200353382
2020-11-12

Liquid treatment device

#84
20200346961
2020-11-05

Saline glycerine wastewater treatment system and technology

#85
20200331787
2020-10-22

Method for recovering phosphorus from sludge and plant thereof

#86
20200299166
2020-09-24

Methods and systems for removing nitrates in Zero Liquid Discharge applications

#87
20200290909
2020-09-17

Fluidized bed pellet reactor water softener and process for softening water

#88
20200283319
2020-09-10

Process for the treatment of wastewater formed during the production of modified starches

#89
20200283317
2020-09-10

Filtering a Fluid

#90
20200255313
2020-08-13

Process to recover ammonium bicarbonate from wastewater

#91
20200215454
2020-07-09

System and method for removal of scale forming components

#92
20200189937
2020-06-18

System for treating reverse-osmosis concentrated water with permanent hardness

#93
20200114283
2020-04-16

Liquid treatment apparatus

#94
20200109065
2020-04-09

Production of ultra-high-density brines using transiently-operated desalination systems

#95
20200087167
2020-03-19

Desalinization device and method of using the same

#96
20200055747
2020-02-20

Waste water treatment system with buffering device and waste water treatment method therefor

#97
20200055746
2020-02-20

WASTEWATER EVAPORATION, TREATMENT OR RECOVERY SYSTEM

#98
20200048129
2020-02-13

Method for simultaneous removal of heavy metals and organic matters from wastewater

#99
20200048128
2020-02-13

Method and Apparatus for Gasification Wastewater Treatment

#100
20200001197
2020-01-02

Stacked type falling film evaporator, zero liquid discharge system comprising the same, and zero liquid discharging method using the same

#101
20190382291
2019-12-19

Enhanced process for selective salt recovery from wastewater, waste salts, and brines

#102
20190376154
2019-12-12

Filter media for the removal of particles, ions, and biological materials, and decolorization in a sugar purification process, and use thereof

#103
20190360967
2019-11-28

QCM measurement of scale formation

#104
20190352206
2019-11-21

System and process for treating produced and frac flowback waters

#105
20190330082
2019-10-31

Systems and methods for separating surface materials from a fluid using acoustic pressure shock waves

#106
20190322560
2019-10-24

Process for treating produced water with magnesium oxide

#107
20190291020
2019-09-26

Water treatment and steam generation system for enhanced oil recovery and a method using same

#108
20190270656
2019-09-05

Process for reducing the concentration of arsenic in an aqueous solution comprising a fluoroacid

#109
20190248676
2019-08-15

Well wastewater treatment

#110
20190225854
2019-07-25

Treated geothermal brine compositions with reduced concentration of silica, iron and lithium

#111
20190210904
2019-07-11

Process to recover ammonium bicarbonate from wastewater

#112
20190210903
2019-07-11

Scale reduction cartridge system

#113
20190210890
2019-07-11

Water treatment system using mechanical vapour compression

#114
20190209943
2019-07-11

Thermal desalination system with multi-effect evaporator and fluidized bed crystallizer

#115
20190194043
2019-06-27

Treatment of water

#116
20190169056
2019-06-06

Salt production from wastewater

#117
20190160430
2019-05-30

Desalination processes and fertilizer production methods

#118
20190160392
2019-05-30

Reversible control of solution solubility using functionalized nanoparticles

#119
20190151838
2019-05-23

Silver recovery as Agnanoparticles from ion-exchange regenerant solution

#120
20190144309
2019-05-16

Resource recovery method using desalination water treatment apparatus

#121
20190144306
2019-05-16

Reverse osmosis system with fluidized bed crystallizer

#122
20190119138
2019-04-25

Emancipative waste activated sludge stripping to remove internal phosphorus (“eWASSTRIP”)

#123
20190071338
2019-03-07

Process to recover ammonium bicarbonate from wastewater

#124
20190062189
2019-02-28

Concentrating aqueous solutions via hybridizing electrodialysis and other desalination techniques

#125
20190062188
2019-02-28

Apparatus and method for treating waste water containing ammonium salts

#126
20190046927
2019-02-14

Desalination

#127
20190023595
2019-01-24

Method for treating an effluent supersaturated with calcium carbonate in the presence of phosphonate precipitation-inhibiting products

#128
20190002321
2019-01-03

Recovery of phosphorus compounds from wastewater

#129
20190002312
2019-01-03

Effluent treatment process for sulphate removal

#130
20190002311
2019-01-03

Effluent treatment process—pH refinement for sulphate removal

#131
20190002306
2019-01-03

Production of ultra-high-density brines using transiently-operated desalination systems

#132
20180362378
2018-12-20

Production of heavy brines by calcination of carbonates using plasma arc reactor

#133
20180319690
2018-11-08

Method of recovering oil or gas and treating the resulting produced water

#134
20180319673
2018-11-08

Method for crystallising clathrates hydrates, and method for purifying an aqueous liquid using the clathrates hydrates thus crystallised

#135
20180257965
2018-09-13

Membrane treatment of ammonia-containing waste water

#136
20180237319
2018-08-23

Device and method for recovering a precipitated solid inorganic final product consisting of phosphorus, nitrogen and an element X

#137
20180183082
2018-06-28

Water management in electrochemical systems

#138
20180170775
2018-06-21

Process and system for removing ammonium from wastewater

#139
20180148374
2018-05-31

Method and device for treating and utilizing bypass dusts

#140
20180148350
2018-05-31

Method and system for treating brine waste water

#141
20180118584
2018-05-03

METHOD FOR WATER PURIFICATION BY DIRECT OSMOSIS AND CRYSTALLISATION OF CLATHRATES HYDRATES

#142
20180050930
2018-02-22

CRYSTALLIZER FOR WATER RECLAMATION

#143
20180029904
2018-02-01

Enhanced process for selective salt recovery from wastewater, waste salts, and brines

#144
20180023805
2018-01-25

Water treatment and steam generation system for enhanced oil recovery and a method using same

#145
20180022617
2018-01-25

Recovery of valuable resources from produced water and coal combustion products

#146
20180016160
2018-01-18

EUTECTIC FREEZE CRYSTALLIZATION SPRAY CHAMBER

#147
20170369337
2017-12-28

ENHANCED BRINE CONCENTRATION WITH OSMOTICALLY DRIVEN MEMBRANE SYSTEMS AND PROCESSES

#148
20170368476
2017-12-28

System and method for removal of scale forming components

#149
20170334758
2017-11-23

Process for purification of produced water

#150
20170313610
2017-11-02

Multi-stage submerged membrane distillation water treatment apparatus

#151
20170291816
2017-10-12

Apparatus for the extraction of phosphorus from wastewater

#152
20170267565
2017-09-21

Near-zero-release treatment system and method for high concentrated organic wastewater

#153
20170247270
2017-08-31

WATER TREATMENT METHODS

#154
20170209808
2017-07-27

Fluid treatment reactor

#155
20170203977
2017-07-20

Production of ultra-high-density brines using transiently-operated desalination systems

#156
20170165590
2017-06-15

Method for separating tritiated water from light water contaminated by the tritiated water

#157
20170144911
2017-05-25

Removal of arsenic from contaminated aqueous solutions

#158
20170107132
2017-04-20

RECYCLING TREATMENT SYSTEM FOR TANNERY WASTEWATER

#159
20170107125
2017-04-20

Method for improving performance of fluid processing system based on crystallization promoting medium

#160
20170096356
2017-04-06

PROCESS AND SYSTEM FOR PRODUCED WATER TREATMENT

#161
20170096355
2017-04-06

PROCESS AND SYSTEM FOR WELL WATER TREATMENT

#162
20170096351
2017-04-06

Brine treatment scaling control system and method

#163
20170088451
2017-03-30

Elimination of sodium sulfate from biologically treated wastewater

#164
20170087484
2017-03-30

Liquid processing apparatus

#165
20170081229
2017-03-23

Salt separator and a method for producing a methane-containing gas mixture from biomass using a salt separator

#166
20170073245
2017-03-16

Method for mixing industrial waste water within a gravity settling tank

#167
20170067654
2017-03-09

Scale trapping unit and water heater

#168
20170066663
2017-03-09

Systems and methods for separating heavy water from normal water using acoustic pressure shock waves

#169
20170057844
2017-03-02

Membrane cleaning and desalination with a membrane using acoustic pressure shock waves

#170
20170057843
2017-03-02

Water desalination using freeze crystallization and acoustic pressure shock waves

#171
20170050119
2017-02-23

Simultaneous recovery of organic compounds and extractants

#172
20170036923
2017-02-09

Acoustic pressure shock wave devices and methods for fluids processing

#173
20170029306
2017-02-02

Water treatment system and power generation facility

#174
20160376933
2016-12-29

Electricity-water co-generation system and method

#175
20160375433
2016-12-29

Inorganic material for removing harmful substance from wastewater and method of preparing the same, and method for wastewater treatment

#176
20160367936
2016-12-22

WATER TREATMENT SYSTEM AND METHOD

#177
20160340208
2016-11-24

Transiently-operated desalination systems with heat recovery and associated methods

#178
20160339390
2016-11-24

Method of solvent recovery from a dilute solution

#179
20160289092
2016-10-06

Removal of dissolved selenium from aqueous solutions

#180
20160280571
2016-09-29

Process for recovering sulfate and chloride salts from wastewater, mixed salts, and brines

#181
20160272507
2016-09-22

System and method for water treatment

#182
20160221851
2016-08-04

Elimination of sodium sulfate from biologically treated wastewater

#183
20160200613
2016-07-14

Process to recover ammonium bicarbonate from wastewater

#184
20160159668
2016-06-09

Recovering solid waste brine from processed water utilizing a fluidized bed spray granulator system

#185
20160102006
2016-04-14

Wastewater treatment processes employing high rate chemical softening systems

#186
20160090312
2016-03-31

Method for mixing industrial waste water within a gravity settling tank

#187
20160086812
2016-03-24

Method for treating etching solution

#188
20160052812
2016-02-25

REJECT RECOVERY REVERSE OSMOSIS (R2RO)

#189
20150345278
2015-12-03

Oil recovery process including a high solids crystallizer for treating evaporator blowdown

#190
20150329398
2015-11-19

Method for treating organic laden produced water

#191
20150321924
2015-11-12

Purifying aqueous mixtures derived from hydrocarbon production processes

#192
20150292314
2015-10-15

Treatment of produced water with seeded evaporator

#193
20150259232
2015-09-17

Treatment of produced water concentrate

#194
20150252658
2015-09-10

Produced water treatment and solids precipitation from thermal treatment blowdown

#195
20150203384
2015-07-23

Water treatment process and water treatment system

#196
20150203383
2015-07-23

Water treatment process and water treatment system

#197
20150203382
2015-07-23

Water treatment process and water treatment system

#198
20150203381
2015-07-23

Water treatment process and water treatment system

#199
20150203380
2015-07-23

Water treatment process and water treatment system

#200
20150203379
2015-07-23

Water treatment process and water treatment system

#201
20150190727
2015-07-09

Stacked type falling film evaporator, zero liquid discharge system comprising the same, and zero liquid discharging method using the same

#202
20150152309
2015-06-04

Treated geothermal brine compositions with reduced concentrations of silica, iron and lithium

#203
20150128642
2015-05-14

Supercritical water oxidation treatment system for organic wastewater with high salinity

#204
20150083577
2015-03-26

Desalination systems and associated methods

#205
20150034564
2015-02-05

Fluid treatment systems, methods and applications

#206
20150034556
2015-02-05

Method and apparatus for treating accompanied water from a well

#207
20150023847
2015-01-22

CRYSTALLIZATION REACTION APPARATUS FOR RECOVERING RESOURCES

#208
20140326667
2014-11-06

Water purification system and process with water pretreatment apparatus

#209
20140319040
2014-10-30

Hydrochloric acid production system

#210
20140311959
2014-10-23

Wastewater treatment device

#211
20140299461
2014-10-09

Evaporative treatment method for aqueous solution

#212
20140231359
2014-08-21

Treatment of phosphate-containing wastewater with fluorosilicate and phosphate recovery

#213
20140219892
2014-08-07

Separation method for potassium from aqueous KOH solutions

#214
20140187452
2014-07-03

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

#215
20140186242
2014-07-03

Water treatment

#216
20140174745
2014-06-26

Treated geothermal brine compositions with reduced concentrations of silica, iron, and zinc

#217
20140166583
2014-06-19

Process for treating acid mine drainage

#218
20140165563
2014-06-19

Treated brine compositions with reduced concentrations of potassium, rubidium, and cesium

#219
20140091039
2014-04-03

SYSTEM AND METHOD FOR THE TREATMENT OF HYDRAULIC FRACTURING BACKFLOW WATER

#220
20140054230
2014-02-27

Method for monitoring and controlling the chemistry of a ZLD process in power plants

#221
20140048485
2014-02-20

Treatment of raw brines from desalination plants

#222
20140007795
2014-01-09

Treatment of tailings with deionized silicate solutions

#223
20130313201
2013-11-28

High rate chemical softening process

#224
20130248455
2013-09-26

Method for removing calcium, barium, magnesium and strontium from frac flowback

#225
20130240442
2013-09-19

Process for purification of produced water

#226
20130206689
2013-08-15

Brine treatment scaling control system and method

#227
20130140234
2013-06-06

Antisolvent process for treating liquids that include high total dissolved solids

#228
20130134098
2013-05-30

WATER TREATMENT PROCESSES FOR NORM REMOVAL

#229
20130126431
2013-05-23

Water conversion system

#230
20130075098
2013-03-28

METHODS FOR TREATMENT AND USE OF PRODUCED WATER

#231
20130062191
2013-03-14

System and method for water treatment

#232
20130062190
2013-03-14

System and method for water treatment

#233
20130062189
2013-03-14

System and method for water treatment

#234
20130062188
2013-03-14

System and method for water treatment

#235
20120255904
2012-10-11

Method of recovering oil or gas and treating the resulting produced water

#236
20120240761
2012-09-27

Air pollution control system and air pollution control method, spray drying device of dewatering filtration fluid from desulfurization discharged water, and method thereof

#237
20120234765
2012-09-20

METHOD OF TREATMENT OF PRODUCED WATER AND RECOVERY OF IMPORTANT DIVALENT CATIONS

#238
20120111794
2012-05-10

Apparatus and process for producing electricity using pressure retarded osmosis during desalination of sea water

#239
20120097614
2012-04-26

Norm removal from frac water

#240
20120097609
2012-04-26

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