ClassID:

30738

B01D2311/25 - page 2 - CPC Classification

Classification description:

Details relating to membrane separation process operations and control Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed

Recent Application in this class:
#301
20130032535
2013-02-07

Enhanced high water recovery membrane process

#302
20130017414
2013-01-17

Osmotic bioelectrochemical systems

#303
20120311822
2012-12-13

Solute crystallizing apparatus

#304
20120298569
2012-11-29

Reverse osmosis system

#305
20120273422
2012-11-01

Apparatus and methods for solution processing using reverse osmosis

#306
20120267306
2012-10-25

Osmotic separation systems and methods

#307
20120220009
2012-08-30

Cross-flow membrane filtration-based process for protein recovery

#308
20120168368
2012-07-05

Method and apparatus for the filtration of biological solutions

#309
20120149076
2012-06-14

INTEGRATION OF FERMENTAITON WITH MEMBRANE

#310
20120145636
2012-06-14

High efficiency water purification system

#311
20120145634
2012-06-14

High Efficiency Water Purification System

#312
20120145627
2012-06-14

Anaerobic fermentation to produce biogas

#313
20120125849
2012-05-24

METHOD AND ARRANGEMENT FOR CLARIFYING GREEN LIQUOR

#314
20120111051
2012-05-10

Carbon dioxide removal process

#315
20120103906
2012-05-03

Closed Circuit Desalination Retrofit For Improved Performance Of Common Reverse Osmosis Systems

#316
20120103904
2012-05-03

SEPARATION MEMBRANE MODULE FOR OIL-CONTAINING WASTEWATER TREATMENT, OIL-CONTAINING WASTEWATER TREATMENT METHOD, AND OIL-CONTAINING WASTEWATER TREATMENT APPARATUS

#317
20120031844
2012-02-09

FLOW-SWITCH-CONTROLLED, ZERO WASTE REVERSE OSMOSIS WATER TREATMENT SYSTEM

#318
20110300231
2011-12-08

Fluid purification system

#319
20110300230
2011-12-08

Fluid purification system

#320
20110278226
2011-11-17

Process for operating a cooling tower comprising the treatment of feed water by direct osmosis

#321
20110266224
2011-11-03

Enhanced high water recovery membrane process

#322
20110215051
2011-09-08

Method and apparatus for the filtration of biological solutions

#323
20110192795
2011-08-11

Water treatment method including powdered activated carbon recycling

#324
20110094965
2011-04-28

Enhanced high water recovery membrane process

#325
20110036775
2011-02-17

SEA WATER REVERSE OSMOSIS SYSTEM TO REDUCE CONCENTRATE VOLUME PRIOR TO DISPOSAL

#326
20110011725
2011-01-20

DEHYDRATING SYSTEM AND DEHYDRATING METHOD

#327
20100133185
2010-06-03

Method and apparatus for the filtration of biological solutions

#328
20100032377
2010-02-11

Apparatus and methods for solution processing using reverse osmosis

#329
20090145845
2009-06-11

Method and apparatus for the filtration of biological samples

#330
20090134092
2009-05-28

MEMBRANE FILTRATION DEVICE AND PROCESS

#331
20080245733
2008-10-09

Method and apparatus for the filtration of biological solutions

#332
20080203020
2008-08-28

Processes employing movable particles

#333
20080169202
2008-07-17

Process to prepare chlorine-containing compounds

#334
20070163628
2007-07-19

Method for diafiltration of a product and device for carrying out this method

#335
20070151925
2007-07-05

Method and apparatus for the filtration of biological solutions

#336
20070151924
2007-07-05

Method and apparatus for the filtration of biological samples

#337
20060157409
2006-07-20

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

#338
20060091074
2006-05-04

Membrane filtration device and process

#339
20050127001
2005-06-16

Method and device for producing a metal hydroxide

#340
20050112755
2005-05-26

Purification and concentration of synthetic biological molecules

#341
17245333
2021-12-21

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

#342
17245276
2021-12-21

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

#343
17083885
2023-09-26

Process for boron removal from water

#344
16989142
2022-12-13

Filtration processes and systems

#345
16743236
2022-11-08

Mechanical kidney transplant

#346
14616696
2017-11-21

Hybrid diafiltration system and methods