Patents-Review.com
ClassID:

86381 ⎘

C02F3/2813 - CPC Classification

Classification description:

Biological treatment of water, waste water, or sewage; Anaerobic digestion processes using anaerobic contact processes

Recent Application in this class:
#1
20240102054
2024-03-28

METHOD OF REDUCING NITROGEN OXIDE CONCENTRATION IN SAMPLE, BIOREACTOR, AND PLUG FLOW REACTOR

 #2
20230150853
2023-05-18

Anaerobic waste digestion system

 #3
20230055262
2023-02-23

Method for treating reducible compound residues using iron-containing bioreactor

 #4
20220340462
2022-10-27

Method of fixing arsenic using activated biochar

 #5
20220259533
2022-08-18

Culture systems and methods of using same

 #6
20210276909
2021-09-09

Nitrogen sparging assisted anoxic biological water treatment system

 #7
20210179465
2021-06-17

Method and device for controlling pollutants in basin water resources cycling utilization in agricultural activity areas

 #8
20210171376
2021-06-10

Methods for anaerobic waste digestion

 #9
20210024861
2021-01-28

Culture systems and methods of using same

 #10
20190389755
2019-12-26

Aerated racetrack wetland system for treating wastewater

 #11
20180282185
2018-10-04

SLIGHTLY HEAVY PARTICLE SYSTEM FOR WASTEWATER TREATMENT

 #12
20180093910
2018-04-05

Method and system for anaerobic treatment of organically loaded wastewater

 #13
20160194228
2016-07-07

Biological purifier for untreated waste water and method of producing the same, biological purification method for untreated waste water, and biological purification system for untreated waste water

 #14
20160186218
2016-06-30

Method and system for production of hydrogen, methane, volatile fatty acids, and alcohols from organic material

 #15
20160137537
2016-05-19

Method and apparatus for wastewater treatment using gravimetric selection

 #16
20160083268
2016-03-24

Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle

 #17
20160039694
2016-02-11

Iron-Containing Bioreactor & Method for Treating Reducible Compound Residues

 #18
20160009580
2016-01-14

WASTEWATER TREATMENT SYSTEM AND METHODS

 #19
20150175455
2015-06-25

BIOFILM CARRIER SCREEN

 #20
20150108066
2015-04-23

Denitrification biofilter device and method for treating wastewater

 #21
20150076045
2015-03-19

PURIFICATION METHOD AND APPARATUS FOR RADIOACTIVE WASTEWATER CONTAINING IODINE RADIONUCLIDES

 #22
20150056677
2015-02-26

MICROBES AND METHODS FOR REDUCING COMPOUNDS

 #23
20150008181
2015-01-08

WASTEWATER TREATMENT USING CONTROLLED SOLIDS INPUT TO AN ANAEROBIC DIGESTER

 #24
20140197096
2014-07-17

Wastewater treatment systems and methods

 #25
20140144836
2014-05-29

Method and apparatus for wastewater treatment using gravimetric selection

 #26
20120211416
2012-08-23

System for enhancing a wastewater treatment process

 #27
20120152812
2012-06-21

Wastewater treatment system to reduce sludge generation

 #28
20110297613
2011-12-08

Method and apparatus for producing bio-gas employing technology for improving quality of raw material fed thereto

 #29
20110281341
2011-11-17

BIOLOGICAL PROCESS FOR CONVERTING ORGANIC BY-PRODUCTS OR WASTES INTO RENEWABLE ENERGY AND USABLE PRODUCTS

 #30
20110281255
2011-11-17

BIOLOGICAL PROCESS FOR CONVERTING ORGANIC BY-PRODUCTS OR WASTES INTO RENEWABLE ENERGY AND USABLE PRODUCTS

 #31
20100155327
2010-06-24

System for enhancing a wastewater treatment process

 #32
20100093050
2010-04-15

BIOTECHNICAL AND MICROBIOLOGICAL PRODUCTION METHOD AND EQUIPMENT

 #33
20090325253
2009-12-31

METHODS AND SYSTEMS FOR PRODUCTION OF BIOFUELS AND BIOENERGY PRODUCTS FROM SEWAGE SLUDGE, INCLUDING RECALCITRANT SLUDGE