ClassID:

28804

B01D21/2488 - CPC Classification

Classification description:

Separation of suspended solid particles from liquids by sedimentation; Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids

Recent Application in this class:
#1
20250099878
2025-03-27

SYSTEM AND METHOD FOR REMOVING CONTAMINANTS FROM A PYROLYSIS FLUID

#2
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

#3
20240091676
2024-03-21

PAINT SLUDGE SEPARATOR TANK USING FROTH FLOATATION

#4
20240091675
2024-03-21

Feed dilution apparatus for thickener/clarifiers

#5
20230338874
2023-10-26

Continuous Dewatering Recirculation System with Integral Coal Combustion Residual High Flow Plate Separator

#6
20230279448
2023-09-07

METHOD AND PROCESS ARRANGEMENT FOR IMPROVING A SEPARATION AND SOLID PRODUCT

#7
20210402329
2021-12-30

Liquid processing apparatus and liquid processing method

#8
20210402316
2021-12-30

Methods and systems for enhancing cooling pond performance and salt production in a solution mining operation

#9
20210308601
2021-10-07

Continuous dewatering recirculation system with integral coal combustion residual high flow plate separator

#10
20200346140
2020-11-05

Multiphase separator, and method of separating a multiphase fluid

#11
20200340179
2020-10-29

Green liquor clarification using sedimentation tank during white liquor preparation

#12
20200188815
2020-06-18

Animal byproduct recovery system

#13
20200155972
2020-05-21

WATER TREATMENT PLANT AND CORRESPONDING METHOD

#14
20200141224
2020-05-07

Down-hole gas separation system

#15
20200131059
2020-04-30

Water treatment plant having integrated ballasted flocculation and decantation, and a corresponding method

#16
20200101403
2020-04-02

Separator system and method

#17
20200094158
2020-03-26

Methods and systems for enhancing cooling pond performance and salt production in a solution mining operation

#18
20200086240
2020-03-19

Continuous dewatering recirculation system with integral coal combustion residual high flow plate separator

#19
20200056102
2020-02-20

Purification of oil

#20
20190374879
2019-12-12

Fluid removal system for a blowdown vessel

#21
20190299128
2019-10-03

METHODS AND SYSTEMS FOR TREATING DRILLING FLUIDS

#22
20190233316
2019-08-01

Animal byproduct recovery system

#23
20190160396
2019-05-30

FOLDABLE AND REMOVABLE PARTITION ASSEMBLY FOR SEPTIC TANK

#24
20180257000
2018-09-13

Methods and systems for enhancing cooling pond performance and salt production in a solution mining operation

#25
20180230036
2018-08-16

Sludge dehydration system and sludge dehydration method

#26
20180193774
2018-07-12

Floating chopper sludge weir

#27
20180171730
2018-06-21

SYSTEM AND METHOD FOR PROCESSING A SLURRY

#28
20180023379
2018-01-25

Down-hole gas separation system

#29
20180023006
2018-01-25

Oil recovery from sediments and residues from oil field operations

#30
20180021699
2018-01-25

Continuous dewatering recirculation system with integral coal combustion residual high flow plate separator

#31
20170253495
2017-09-07

Method and apparatus for filtration of lime-treated water

#32
20170231457
2017-08-17

WATER CONTAINMENT UNIT AND FILTRATION SYSTEM

#33
20170209814
2017-07-27

System and method for treating liquids and solutions to remove and/or separate components thereof using stabilized gas infused liquids

#34
20170114293
2017-04-27

System and process for clarifying thin stillage

#35
20170065908
2017-03-09

Continuous dewatering recirculation system with integral coal combustion residual high flow plate separator

#36
20170016288
2017-01-19

System and method for processing a slurry

#37
20170001876
2017-01-05

Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore

#38
20160137537
2016-05-19

Method and apparatus for wastewater treatment using gravimetric selection

#39
20160115066
2016-04-28

Sludge dehydration system and sludge dehydration method

#40
20160115065
2016-04-28

Recovery device and recovery method for recovering specific material from sludge

#41
20160082367
2016-03-24

CONCENTRATION OF SUSPENSIONS

#42
20150368135
2015-12-24

Pasteurization system with purification of the process liquid

#43
20150224517
2015-08-13

Hydroclone

#44
20150202545
2015-07-23

SELECTIVE SEPARATION AND CONCENTRATION SYSTEM FOR WATER SOLUBLE SALTS

#45
20150151989
2015-06-04

System for purifying polluted water and purification method

#46
20150092511
2015-04-02

SHEAR-THINNING OF SLURRIES

#47
20150083651
2015-03-26

Cross-flow filtration system including particulate settling zone

#48
20150048023
2015-02-19

Bioreactor and the waste water treatment method

#49
20150048012
2015-02-19

Bioreactor

#50
20150013061
2015-01-15

Washing Apparatus

#51
20140311958
2014-10-23

Trapping structures for a particle separation cell

#52
20140161714
2014-06-12

Process for recovery of fluoride from wastewater produced in crystalline silicon solar cell manufacturing

#53
20140158635
2014-06-12

System and method for hydrate-based desalination

#54
20140144836
2014-05-29

Method and apparatus for wastewater treatment using gravimetric selection

#55
20140102963
2014-04-17

Thickener dilution tube

#56
20140083955
2014-03-27

Apparatus for treating waste water

#57
20130256243
2013-10-03

Open-channel feed dilution system for a thickener or settling tank

#58
20130055723
2013-03-07

Apparatus and method for separating ice from fuel in a gas turbine engine

#59
20120325754
2012-12-27

Method and apparatus for filtration of lime-treated water

#60
20120111806
2012-05-10

PULSED SLUDGE BED SETTLING METHOD AND DEVICE

#61
20120061334
2012-03-15

Settler with overflow recycle

#62
20120043278
2012-02-23

PAINT WASTE LIQUID TREATMENT METHOD

#63
20110303616
2011-12-15

OIL RECOVERY SYSTEM AND METHOD

#64
20110127198
2011-06-02

OIL SAND SLURRY SOLIDS REDUCTION TO ENHANCE EXTRACTION PERFORMANCE FOR PROBLEM ORES

#65
20110120959
2011-05-26

Hydroclone based fluid filtration system

#66
20110100931
2011-05-05

Method of optimizing feed concentration in a sedimentation vessel

#67
20110048476
2011-03-03

Device for removing foreign material from processing tank

#68
20110048458
2011-03-03

Device and method for filtering processing liquid in processing tank

#69
20110047743
2011-03-03

FINE SOLIDS RECOVERY SYSTEM, METHOD AND PICK-UP WAND

#70
20100264093
2010-10-21

Method for removing suspended solids from aqueous fluids

#71
20100264091
2010-10-21

Process for separating one or more solids from water miscible fluids and an apparatus therefor

#72
20100163498
2010-07-01

Skim tank configurations and methods

#73
20100135105
2010-06-03

Apparatus and Method for Monitoring a Cleaning and/or Aeration System

#74
20100102006
2010-04-29

Ballast flocculation and sedimentation water treatment system with simplified sludge recirculation, and process therefor

#75
20100081552
2010-04-01

Continuous self-cleaning centrifuge assembly having turbidity-sensing feature

#76
20090308815
2009-12-17

Method of treating water by ballasted flocculation/settling, which includes a continuous measurement of the ballast, and corresponding installation

#77
20090301966
2009-12-10

Method for purifying wastewater

#78
20090301296
2009-12-10

Device and method for separating a flowing medium mixture into fractions

#79
20090050560
2009-02-26

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

#80
20090039001
2009-02-12

ENHANCED SEPARATION TANK WITH pH CONTROL

#81
20090001000
2009-01-01

APPARATUS FOR TREATING LIQUID WASTE MATERIAL

#82
20080283471
2008-11-20

Process for Separating One or More Solids from Water Miscible Fluids and an Apparatus Therefor

#83
20080282655
2008-11-20

Green house gases filtration system

#84
20080264840
2008-10-30

Fluids fluxion method and plant for wastewater treatment

#85
20080257810
2008-10-23

System for removing BOD and suspended solids through an activated sludge process and a ballasted flocculation process

#86
20080251465
2008-10-16

Apparatus for removing suspended solids from aqueous fluids

#87
20080217244
2008-09-11

Water treatment method comprising a rapid settling step followed by a filtration step directly on micro- or ultra-filtration membranes, and corresponding device

#88
20080185324
2008-08-07

Method and apparatus for treating lime slurry for grit removal

#89
20080128332
2008-06-05

Trapping structures for a particle separation cell

#90
20080111096
2008-05-15

COMPOSITION FOR EXTRACTING CRUDE OIL FROM TAR SANDS

#91
20080006304
2008-01-10

FLOCK TANK

#92
20070256964
2007-11-08

Separator device

#93
20070246431
2007-10-25

Method for concentrating solids from drilling slurry

#94
20070163955
2007-07-19

Combination activated sludge—ballasted flocculation process

#95
20070119764
2007-05-31

Enhanced separation tank with pH control

#96
20070045168
2007-03-01

Hydroclone based fluid filtration system

#97
20070039900
2007-02-22

Hydroclone based fluid filtration system

#98
20060231511
2006-10-19

Method and apparatus for treating lime slurry for grit removal

#99
20060231507
2006-10-19

Method and apparatus for treating lime slurry for grit removal

#100
20060226091
2006-10-12

Automatic tank cleaning system

#101
20060213832
2006-09-28

Method and system for utilizing activated sludge in a ballasted flocculation process to remove BOD and suspended solids

#102
20060207919
2006-09-21

Effluent interceptor with solids removal

#103
20060108273
2006-05-25

Ballasted flocculation process and system incorporating an electro-coagulation reactor for treating water or wastewater

#104
20060070959
2006-04-06

Poultry processing water recovery and re-use process

#105
20050274651
2005-12-15

Method and apparatus for separating mixed plastics using flotation techniques

#106
20050218056
2005-10-06

Method and plant for thickening sludge derived from water treatment by flocculation-decantation with ballasted floc

#107
20050205496
2005-09-22

Process and apparatus for treating liquid waste material

#108
20050205477
2005-09-22

Automatic tank cleaning system

#109
20050194322
2005-09-08

Apparatus and system for concentrating slurry solids

#110
20050173354
2005-08-11

Acoustic sensor for obstruction in a device circulating vortex-flow fluid

#111
20050155917
2005-07-21

Dilution apparatus for a thickener

#112
20050016937
2005-01-27

Separator of floating components

#113
20050005950
2005-01-13

Method for removing blast media and colored residues comprising an aqueous slurry suspension

#114
20050000871
2005-01-06

Fluid diverter for a wastewater treatment system

#115
17582909
2024-12-17

Centrifugal sand drying system and method of use

#116
16227417
2020-08-25

Flow back separation system and method