ClassID:

86645

C02F2301/08 - page 3 - CPC Classification

Classification description:

General aspects of water treatment Multistage treatments, e.g. repetition of the same process step under different conditions

Recent Application in this class:
#601
20110233143
2011-09-29

Mobile flowback water treatment system

#602
20110233139
2011-09-29

Treatment of water

#603
20110220641
2011-09-15

Water treatment pressure vessel having internal conical distributor plates

#604
20110215056
2011-09-08

Thiosulfate removal methods and systems

#605
20110204000
2011-08-25

METHOD FOR REMOVING SELENIUM FROM WATER

#606
20110203993
2011-08-25

Treatment stages for selenium removal

#607
20110198276
2011-08-18

System for removal of contaminants from industrial streams

#608
20110180487
2011-07-28

Optimized Water Treatment Installation and Process

#609
20110180477
2011-07-28

LOW ENERGY SYSTEM AND METHOD OF DESALINATING SEAWATER

#610
20110163036
2011-07-07

Method and apparatus for generating fresh water

#611
20110150707
2011-06-23

Ultraviolet irradiation system

#612
20110147310
2011-06-23

Method and apparatus for generating fresh water

#613
20110147309
2011-06-23

PROCESS FOR THE DESALINATION AND ELIMINATION OF BORON FROM WATER AND EQUIPMENT TO CARRY OUT SAID PROCESS

#614
20110140457
2011-06-16

Wastewater pre-treatment and evaporation system

#615
20110139716
2011-06-16

Method and apparatus for desalinating sea water

#616
20110139712
2011-06-16

Method and apparatus for desalinating sea water

#617
20110127223
2011-06-02

PROCESS FOR TREATING POND WATER

#618
20110113840
2011-05-19

Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules

#619
20110100913
2011-05-05

Water purifier and water purification method

#620
20110097257
2011-04-28

Ammonia recovery device and recovery method

#621
20110089036
2011-04-21

Method for desalinating saltwater using concentration difference energy

#622
20110084031
2011-04-14

Treatment of a waste stream through production and utilization of oxyhydrogen gas

#623
20110079560
2011-04-07

CATALYTIC WET OXIDATION SYSTEMS AND METHODS

#624
20110068056
2011-03-24

Method for the Biological Treatment of an Effluent and Associated Plant

#625
20110062080
2011-03-17

Bio-denitrification apparatus and method for making and using same

#626
20110056878
2011-03-10

MEMBRANE FILTRATION SYSTEM

#627
20110046430
2011-02-24

Metal remediation using a mesoporous nanocomposite

#628
20110042306
2011-02-24

Method for desalinating sea water

#629
20110042232
2011-02-24

Solid electrolyte producing assembly and method

#630
20110036780
2011-02-17

Method and apparatus for collecting fractions of mixtures, suspensions, and solutions of non-polar liquids

#631
20110031130
2011-02-10

Method for purifying aqueous compositions

#632
20100326327
2010-12-30

Environmentally-friendly cementitious articles, formulations, methods of making and uses

#633
20100307973
2010-12-09

MOBILE UNIT FOR THE TREATMENT OF RAW WATER

#634
20100307970
2010-12-09

Washable anaerobic digester with fixed biofilm

#635
20100300970
2010-12-02

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#636
20100296971
2010-11-25

Medium treatment using ultraviolet light

#637
20100286096
2010-11-11

Methods of and formulations for reducing and inhibiting the growth of the concentration of microbes in water-based fluids and systems used with them

#638
20100282691
2010-11-11

METHOD FOR PRODUCING SUPERSATURATED DISSOLVED OXYGEN-CONTAINING WATER

#639
20100213121
2010-08-26

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

#640
20100203608
2010-08-12

METHOD FOR THE CONVERSION OF BIOMASS FROM RENEWABLE RAW MATERIALS IN ANAEROBIC FERMENTERS

#641
20100193448
2010-08-05

Enhanced water treatment for reclamation of waste fluids and increased efficiency treatment of potable waters

#642
20100187187
2010-07-29

Plant for aerobic and anaerobic digestion treatment by PFR

#643
20100147769
2010-06-17

ELEMENT REMOVAL PROCESS AND APPARATUS

#644
20100140183
2010-06-10

Liquid filtering system and its automatic cleaning procedure

#645
20100133199
2010-06-03

Method of flocculating sedimentation treatment

#646
20100116756
2010-05-13

Fluid treatment process and apparatus

#647
20100065497
2010-03-18

Membrane station waste treatment process

#648
20100051526
2010-03-04

Phosphorous removal system

#649
20100044315
2010-02-25

Phosphorus removal method

#650
20100044305
2010-02-25

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

#651
20100032369
2010-02-11

SEWAGE PURIFICATION PLANT AND PROCESS THEREOF

#652
20090308745
2009-12-17

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#653
20090289011
2009-11-26

MOBILE WATER PURIFICATION SYSTEM AND METHOD

#654
20090277822
2009-11-12

CHANGEABLE CONTINUOUS FLOW MODULAR SYSTEM FOR THE TREATMENT OF WATER STREAMS

#655
20090277775
2009-11-12

Reactor for removing chemical and biological contaminants from a contaminated fluid

#656
20090255862
2009-10-15

Eco-treatment system

#657
20090242489
2009-10-01

Element removal apparatus

#658
20090230054
2009-09-17

Contaminant Removal System And Method For A Body Of Water

#659
20090223882
2009-09-10

Dual-Train Wastewater Reclamation and Treatment System

#660
20090218282
2009-09-03

Dual-Train Wastewater Reclamation and Treatment System

#661
20090200180
2009-08-13

Method and apparatus of treating waste

#662
20090184054
2009-07-23

Adsorbent bed and water treatment method of use

#663
20090178981
2009-07-16

Method for treating rinse water in decontamination devices

#664
20090178967
2009-07-16

Flow through wastewater treatment apparatus

#665
20090134090
2009-05-28

Separating components of aqueous mixtures, suspensions, and solutions

#666
20090114609
2009-05-07

Methods and apparatuses for filtering water from oil and gas wells

#667
20090107913
2009-04-30

System and method for anaerobic digestion of biomasses

#668
20090101590
2009-04-23

Wastewater treatment method and apparatus

#669
20090101578
2009-04-23

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#670
20090101086
2009-04-23

Water purification method, process and apparatus

#671
20090065444
2009-03-12

Use of electromagnetic pulses in cross-flow filtration systems

#672
20090057212
2009-03-05

TREATMENT SYSTEM OF LOW CONCENTRATION SANITARY SEWAGE

#673
20090050572
2009-02-26

Enhanced water treatment for reclamation of waste fluids and increased efficiency treatment of potable waters

#674
20090045139
2009-02-19

Treatment system and method for treating liquid concrete washout waste

#675
20090038961
2009-02-12

Process for treating radioactive waste water to prevent overloading demineralizer systems

#676
20090014383
2009-01-15

On/off site water reclamation system

#677
20090008318
2009-01-08

Modular Water Purification and Delivery System

#678
20090004045
2009-01-01

Water Treatment Process and Apparatus

#679
20080257828
2008-10-23

SYSTEMS AND METHODS FOR REDUCTION OF METAL CONTAMINANTS IN FLUIDS

#680
20080210635
2008-09-04

Process for removal of contaminants from industrial streams

#681
20080164221
2008-07-10

TUBE SOCK INCORPORATING MULTI-LAYER FILTER FOR ENABLING WASTE WATER DISCHARGE DIRECTLY INTO ENVIRONMENT

#682
20080133181
2008-06-05

Locally powered water distillation system

#683
20080121577
2008-05-29

Filter for composite water treatment and sewage treatment

#684
20080105532
2008-05-08

Liquid pumps with hermetically sealed motor rotors

#685
20080073263
2008-03-27

Portable water cleaner

#686
20080073260
2008-03-27

Device For Reducing Microorganisms With Ultrasonic Waves

#687
20080053916
2008-03-06

Method For Coagulating And Dewatering Sludge With Use Of Polymer Coagulant And Method For Coagulating And Percipitating Waste Water With Use Of Polymer Coagulant

#688
20080052094
2008-02-28

WATER DISPENSING SYSTEMS AND METHODS

#689
20080041793
2008-02-21

Plant for filtering substances

#690
20080023398
2008-01-31

Method for removal and recovery of water from polymer manufacturing

#691
20070295668
2007-12-27

Procedure and apparatus of the concentration of hydrophobic materials

#692
20070289911
2007-12-20

Relocatable countercurrent decantation system

#693
20070284314
2007-12-13

Oxidation Process for Water Treatment

#694
20070267352
2007-11-22

METHOD AND SYSTEM FOR FILTERING SEDIMENT-BEARING FLUIDS

#695
20070205159
2007-09-06

Method for treating acidic waters using recycled acidic and basic sludges

#696
20070199903
2007-08-30

System For Removing Solids From Aqueous Solutions

#697
20070187331
2007-08-16

Dewatering process

#698
20070170119
2007-07-26

Treatment system for liquid concrete washout waste

#699
20070151932
2007-07-05

Removal of phosphorous from wastewater

#700
20070138081
2007-06-21

Portable Water Purification and Decontamination System

#701
20070114185
2007-05-24

Selenium removal from water

#702
20070108132
2007-05-17

Process for conditioning an aqueous solution for efficient colloidal precipitation

#703
20070102367
2007-05-10

Apparatus and process for water conditioning

#704
20070084772
2007-04-19

CONTROLLED DOSING OF CHLORINE DIOXIDE OR OTHER SANITIZING AGENTS INTO PRESSURIZED WATER SYSTEMS

#705
20070068879
2007-03-29

Dual-train wastewater reclamation and treatment system

#706
20070068826
2007-03-29

Electrocoagulation reactor

#707
20070048174
2007-03-01

Modular ultraviolet sterilizer

#708
20070031305
2007-02-08

Cell for generating disinfection water and system using the same

#709
20070029243
2007-02-08

Methods and apparatus for treating animal manure

#710
20070007215
2007-01-11

Phosphorus removal system and process

#711
20070003370
2007-01-04

Method for treating landfill leachate

#712
20060283807
2006-12-21

Process obtaining landfill disposable wasted from hydrocarbon containing sludge

#713
20060280647
2006-12-14

Filter assembly for a reprocessor

#714
20060207947
2006-09-21

Method and apparatus for recycling wash chemicals

#715
20060186053
2006-08-24

treatment process to remove metal contamination from groundwater

#716
20060175200
2006-08-10

Method and apparatus for removing contaminants from conduits and fluid columns

#717
20060157424
2006-07-20

Methods and systems for treating wastewater using ozone activated flotation

#718
20060157409
2006-07-20

Optimal high recovery, energy efficient dual fully integrated nanofiltration seawater reverse osmosis desalination process and equipment

#719
20060151372
2006-07-13

Multistage filtration systems

#720
20060130883
2006-06-22

Closed-loop containment ash washer assembly and method

#721
20060108291
2006-05-25

Hog manure treatment method

#722
20060086673
2006-04-27

Gravity pressure vessel and related apparatus and methods

#723
20060086671
2006-04-27

Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina

#724
20060081544
2006-04-20

Sludge concentration system which have functions for automatically charging a coagulant and for automatically controlling the concentration of a sludge

#725
20060081537
2006-04-20

Method and system for the treatment of liquid effluents containing pollutants in a suspension

#726
20050263458
2005-12-01

Process for removing organics from ultrapure water

#727
20050247638
2005-11-10

Apparatus and process for water conditioning

#728
20050230318
2005-10-20

Method of clarifying industrial laundry wastewater using cationic dispersion polymers and anionic flocculent polymers

#729
20050230268
2005-10-20

Combined electrochemical system for scale treatment and eradicating bacteria in water supply systems

#730
20050218081
2005-10-06

Method for cleaning polluted water

#731
20050184000
2005-08-25

Wastewater treatment station in shipping container

#732
20050183964
2005-08-25

Electrochemical water purifier

#733
20050173339
2005-08-11

Sludge elimination system

#734
20050167349
2005-08-04

Controlled dosing of chlorine dioxide of other sanitizing agents into pressurized water systems

#735
20050139531
2005-06-30

Method and system for filtering sediment-bearing fluids

#736
20050127009
2005-06-16

Process for reducing contaminants in process water and/or condensate

#737
20050121394
2005-06-09

System for wastewater treatment

#738
20050103721
2005-05-19

Reduced pressure water filtration system

#739
20050087492
2005-04-28

Reverse osmosis water filtering system

#740
20050077236
2005-04-14

Incubation treatment of sludge for pathogen reduction prior to digestion

#741
20050051482
2005-03-10

Flood and drain wastewater treatment system and associated methods

#742
20050029200
2005-02-10

Method and apparatus for recycling wash chemicals

#743
20050025684
2005-02-03

Fluid over-flow/make-up air assembly for reprocessor

#744
20050025663
2005-02-03

Filter assembly for a reprocessor

#745
20050000910
2005-01-06

Aggregation precipitation method

#746
20050000906
2005-01-06

Methods and apparatus for treating animal manure

#747
18934248
2025-06-17

Self contained modular decentralized point of use fluid treatment system apparatus

#748
18242922
2024-03-26

Membrane based in-line fouling monitor for performance tracking in reverse osmosis and Nano-filtration systems

#749
18170707
2024-06-11

Environmentally safe ultra-high pressure surface cleaning system

#750
18163168
2023-11-21

Solar-powered system for generating steam and distilled water

#751
18118551
2023-11-14

Multistage desalination process with carbon dioxide capture

#752
18100436
2023-08-15

Portable reverse osmosis system

#753
17732215
2025-04-01

Wastewater treatment system

#754
17715912
2022-11-22

Sub-ambient solar desalination system

#755
17449962
2023-06-27

Systems and processes for removing pollutants from water, reducing greenhouse gas emissions, and reducing aquatic ecosystem destruction

#756
17333375
2021-11-23

Mobile water filtration system

#757
17245333
2021-12-21

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

#758
17245276
2021-12-21

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

#759
16535300
2022-12-20

Wastewater spray distribution apparatus

#760
16501595
2020-03-03

De-scaling: the way to economical desalination

#761
16165347
2019-07-30

Foldable multi-stage water filter system

#762
15473003
2020-06-16

Process to remove transition metals from waste water

#763
14998774
2019-05-07

Treatment of saline streams

#764
14790993
2016-07-19

Desalination system

#765
14737782
2017-06-27

Multistage process for removal of phosphorus, fluoride, and arsenic species from water via complexation and solubility control

#766
14544436
2019-04-16

De-scaling methods for desalination plants and a new brine-forward multi-stage flash concept

#767
14544317
2019-04-16

Effective de-scaling for desalination plants and a new brine-forward multi-stage flash concept