ClassID:

86347

C02F3/1226 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage; Aerobic processes; Activated sludge processes; Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor

Recent Application in this class:
#1
20260109631
2026-04-23

ENHANCED ACTIVATED SLUDGE SYSTEM FOR REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) FROM A FLOW OF WASTEWATER AND/OR LANDFILL LEACHATE

#2
20260028259
2026-01-29

POWDERED ACTIVATED CARBON (PAC) ENHANCED ACTIVATED SLUDGE SYSTEM FOR REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) FROM A FLOW OF WASTEWATER AND/OR LANDFILL LEACHATE

#3
20250361165
2025-11-27

Flow Through Aerobic Granular Sludge System and Method

#4
20250333344
2025-10-30

SYSTEM AND METHOD FOR REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES FROM SURFACE WATER

#5
20250333340
2025-10-30

GRANULAR ACTIVATED CARBON (GAC) REACTIVATION WASTE PRODUCT ENHANCED ACTIVATED SLUDGE SYSTEM FOR REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) FROM A FLOW OF WASTEWATER AND/OR LANDFILL LEACHATE

#6
20250313499
2025-10-09

Removal of micropollutants from water and installation for use therein

#7
20250059077
2025-02-20

PFAS REMOVAL AND DESTRUCTION USING BIOREACTORS FOLLOWED BY SUPERCRITICAL WATER OXIDATION

#8
20250051204
2025-02-13

MODIFIED MEMBRANE BIOREACTOR(MBR) SYSTEM AND METHOD FOR REMOVING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) FROM A FLOW OF WASTEWATER AND/OR LANDFILL LEACHATE

#9
20220356094
2022-11-10

System for cleaning wastewater

#10
20220194832
2022-06-23

Flow Through Aerobic Granular Sludge System and Method

#11
20220135455
2022-05-05

Removing heavy metals in a ballasted process

#12
20210070642
2021-03-11

Ballasted Activated Sludge Treatment Combined with High-Rate Liquids/Solids Separation Systems

#13
20200270154
2020-08-27

Method for treating and recycling waste slurry in bobbin paper production

#14
20200109073
2020-04-09

Apparatus and method for removing nitrogen and phosphorus from sewage by using sponge iron and activated sludge

#15
20190359511
2019-11-28

Waste water purification system

#16
20190194049
2019-06-27

Ballasted solids treatment system and method

#17
20190194048
2019-06-27

Removing heavy metals in a ballasted process

#18
20190152820
2019-05-23

Method of combining recuperative digestion with a contact tank and dissolved air flotation

#19
20180305232
2018-10-25

Biosorption wastewatertreatment system

#20
20180280836
2018-10-04

System for biological aerobic activated sludge process with hydrodynamic solid separation

#21
20180016171
2018-01-18

Systems and methods for treating dilute wastewater

#22
20160318777
2016-11-03

Membrane water treatment facility and method incorporating adsorption on an adsorbent powdered material and means for limiting the abrasion of the membranes

#23
20160272521
2016-09-22

Apparatus for water treatment using a physical separator

#24
20150329394
2015-11-19

Use of activated carbon in a membrane bioreactor

#25
20140339158
2014-11-20

System and process for removing ammonium, soluble BOD and suspended solids from a wastewater stream

#26
20140319031
2014-10-30

Wastewater treatment device

#27
20140305868
2014-10-16

PROCESS OF STABILIZING ACTIVATED SLUDGE IN WASTEWATER TREATMENT

#28
20140224730
2014-08-14

Wastewater treatment process including irradiation of primary solids

#29
20140224719
2014-08-14

Wastewater treatment system including irradiation of primary solids

#30
20140131273
2014-05-15

Method and apparatus for wastewater treatment using screens

#31
20140116952
2014-05-01

Water treatment apparatus incorporating wet air regeneration and powdered activated carbon treatment

#32
20140083941
2014-03-27

Biological waste water purification reactor and method

#33
20140083936
2014-03-27

Method and apparatus for water treatment using screens

#34
20140061134
2014-03-06

Water treatment system with carbon regeneration circuit

#35
20130206684
2013-08-15

Purifier comprising a solids separation device, and method for wastewater purification

#36
20110278222
2011-11-17

Ultrapure water production method and apparatus therefor

#37
20110174709
2011-07-21

WASTEWATER TREATMENT SYSTEM AND WASTEWATER TREATMENT PROCESS

#38
20110005284
2011-01-13

Wastewater treatment system including irradiation of primary solids

#39
20090283471
2009-11-19

Apparatus and method for treating organic-containing wastewater

#40
20090272688
2009-11-05

Bioreactor and method for the biological purification of water

#41
20090039015
2009-02-12

Method of wastewater treatment with excess sludge withdrawal reduced

#42
20080257810
2008-10-23

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

#43
20080073270
2008-03-27

Method and apparatus for treatment of wastewater

#44
20080073269
2008-03-27

Method and apparatus for treatment of wastewater

#45
20070163955
2007-07-19

Combination activated sludge—ballasted flocculation process

#46
20050242028
2005-11-03

Process for treating a body of water