ClassID:

86511

C02F2103/18 - CPC Classification

Classification description:

Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents

Recent Application in this class:
#1
20260042058
2026-02-12

METHOD AND SYSTEM FOR TREATING SULFUR DIOXIDE CONTAINING STREAM BY CATALYTIC OXIDATION AND ACID AQUEOUS ABSORPTION

#2
20260035271
2026-02-05

Ammonium-Coordinated Exchanger (ACE) for Anion Contaminant Removal from Water

#3
20250376388
2025-12-11

CONCENTRATOR AND CRYSTALLIZER EVAPORATION SYSTEM

#4
20250375730
2025-12-11

MEMBRANE VOLATILE COMPOUND CAPTURE IN POST-COMBUSTION CARBON CAPTURE

#5
20250320140
2025-10-16

USE OF MEDIUM CHAIN PERACIDS FOR BIOFILM INHIBITION IN INDUSTRIAL RECIRCULATING WATER SYSTEMS

#6
20250236801
2025-07-24

SYNGAS CLEANING AND SOOT RECOVERY

#7
20250196064
2025-06-19

Modular CO2 Sequestration Units and Systems, and Methods for Using the Same

#8
20250172082
2025-05-29

GAS TURBINE FACILITY AND METHOD FOR SUPPRESSING DISCHARGE OF AMMONIA FROM GAS TURBINE FACILITY

#9
20250128208
2025-04-24

ALKALINE CATION ENRICHMENT AND WATER ELECTROLYSIS TO PROVIDE CO2 MINERALIZATION AND GLOBAL-SCALE CARBON MANAGEMENT

#10
20250051189
2025-02-13

REGENERABLE SMART MATERIALS FOR SELECTIVE REMOVAL OF POLLUTANTS FROM WATER AND WASTE WATER

#11
20240400923
2024-12-05

ACTIVATED OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER

#12
20240351931
2024-10-24

Method and System for Fine Particulate Removal and Processing from a Coal Combustion Residual Surface Impoundment

#13
20240343610
2024-10-17

GAS DEHYDRATION WATER MANAGEMENT SYSTEM AND PROCESS

#14
20240337207
2024-10-10

Gas turbine facility and method for suppressing discharge of ammonia from gas turbine facility

#15
20240239678
2024-07-18

ANTI-FOAMING MAGNESIUM HYDROXIDE SUSPENSION

#16
20240207785
2024-06-27

PROCESS TO CONTINUOUSLY TREAT A HYDROGEN SULPHIDE COMPRISING GAS

#17
20240149210
2024-05-09

COMBINATION CARBON MONOXIDE AND NITROGEN DIOXIDE SCRUBBER TREATMENT AND PROCESS

#18
20230365449
2023-11-16

FLUIDIZED BED SEPARATION METHOD AND DEVICE FOR METHANOL-TO-OLEFINS QUENCHED WATER

#19
20230348297
2023-11-02

CONCENTRATOR AND CRYSTALLIZER EVAPORATION SYSTEM

#20
20230183110
2023-06-15

Flocculant for catalytic decomposition of flue gas desulfurization wastewater treatment

#21
20230151747
2023-05-18

System for exhaust gas purification of internal combustion engines

#22
20230084627
2023-03-16

LIQUID COLLECTION CONTAINER

#23
20230067004
2023-03-02

METHODS AND SYSTEMS FOR REDUCING THE CONCENTRATION OF AMINE IN WASH LIQUID USED IN INDUSTRIAL PROCESSING

#24
20230019754
2023-01-19

Alkaline cation enrichment and water electrolysis to provide COmineralization and global-scale carbon management

#25
20230017568
2023-01-19

METHOD AND SYSTEM FOR ZERO DISCHARGE TREATMENT OF DESULFURIZATION WASTEWATER SUITABLE FOR MULTIPLE WORKING CONDITIONS

#26
20220305432
2022-09-29

Amine-containing water concentration system and apparatus, and carbon dioxide recovery system

#27
20220204872
2022-06-30

Compositions and methods for remediating hydrogen sulfide in hydrocarbon based liquids

#28
20220169538
2022-06-02

Water generation system for a vehicle that implements sanitization by ultraviolet light

#29
20220144674
2022-05-12

Methods for treating selenocyanate in wastewater

#30
20220105460
2022-04-07

A PROCESS FOR CLEAN SAILING OF MARINE SHIP AND A SHIP

#31
20220040639
2022-02-10

Alkaline cation enrichment and water electrolysis to provide COmineralization and global-scale carbon management

#32
20210368792
2021-12-02

Anti-microbial agent to control biomass accumulation in SO scrubbers

#33
20210363032
2021-11-25

Sour water treatment

#34
20210347665
2021-11-11

Method and apparatus for direct drying of inorganic sludge with drum drawing process

#35
20210340078
2021-11-04

Integration of carbon dioxide absorption and water electrolysis into methanation

#36
20210339161
2021-11-04

Waste water evaporation methods and apparatus

#37
20210322922
2021-10-21

Carbon capture filtration system and method

#38
20210317026
2021-10-14

Mineral recovery enhanced desalination (MRED) process for desalination and recovery of commodity minerals

#39
20210308617
2021-10-07

Exhaust gas cleaning system and method for cleaning exhaust gas

#40
20210299593
2021-09-30

Clarifier rake configuration and system and method including the same for bottom ash handling related to flue gas desulfurization

#41
20210292202
2021-09-23

Microbiological treatment system for ethylene oxide exhaust gas

#42
20210291112
2021-09-23

Sterilization exhaust gas treating system and method for treating ethylene oxide-containing sterilization exhaust gas by using the same

#43
20210221718
2021-07-22

for degrading ethylene oxide

#44
20210206660
2021-07-08

Process to recycle water condensate from COoff gas stream

#45
20210198550
2021-07-01

Apparatus for concentrating wastewater and for creating brines

#46
20210188674
2021-06-24

Method for the treatment of wastewaters

#47
20210188673
2021-06-24

Process and installation for treating a waste lye of a lye scrub

#48
20210138390
2021-05-13

Combined acid gas removal and water filtration system

#49
20210087083
2021-03-25

Water treatment apparatus using lamella structure

#50
20210053853
2021-02-25

Process and device for treating a waste lye

#51
20210046405
2021-02-18

Clarifier rake configuration and system and method including the same for bottom ash handling related to flue gas desulfurization

#52
20210040400
2021-02-11

Chemical compositions and methods of using same for remediating low to moderate amounts of sulfur-containing compositions and other contaminants in liquids

#53
20210017052
2021-01-21

Methods and systems for treating an aqueous solution

#54
20210016246
2021-01-21

Multi-functionalized basic immobilized amine sorbents for removal of metal contaminants from wastewater

#55
20210016223
2021-01-21

Treated water drying device and boiler system including the same

#56
20210002151
2021-01-07

Method and device for removing chloride ion in desulfurized wastewater by electrochemical coupling

#57
20200392053
2020-12-17

Integration of carbon dioxide absorption and water electrolysis into methanation

#58
20200368757
2020-11-26

Horizontal electrostatic precipitator and electrostatic precipitation method using the same

#59
20200353412
2020-11-12

Scrubber, exhaust gas purification system comprising scrubber, and air purification method

#60
20200346955
2020-11-05

Trap apparatus of condensate water

#61
20200339457
2020-10-29

Moving bed biofilm reactor system for selenium removal from water and wastewater

#62
20200246744
2020-08-06

Hydrogen sulfide removal process

#63
20200239789
2020-07-30

Methods of remediating liquid compositions containing sulfur and other contaminants

#64
20200230549
2020-07-23

Reducing mercury air and water emissions from a coal fired power plant within a FGD system using a biocide

#65
20200224073
2020-07-16

Apparatus for concentrating wastewater and for creating brines

#66
20200223723
2020-07-16

Method for treating sulfides in waste streams

#67
20200216338
2020-07-09

Condensate neutralizer alert

#68
20200140298
2020-05-07

Methods for treating sulfides in gaseous streams

#69
20200131444
2020-04-30

Compositions and methods for remediating hydrogen sulfide in hydrocarbon based liquids

#70
20200087179
2020-03-19

Removal of selenocyanate from refinery sour water stripper wastewater

#71
20200079666
2020-03-12

Method for treating sulfides in waste streams

#72
20200071219
2020-03-05

Control of aqueous arsenic, selenium, mercury or other metals from flue gas

#73
20200071207
2020-03-05

Non-waste water flue gas treatment system and non-waste water flue gas treatment method

#74
20200061527
2020-02-27

Marine exhaust gas scrubbing and ballast water disinfection system

#75
20200039850
2020-02-06

TREATMENT AGENT FOR WET-COATING-BOOTH CIRCULATING WATER

#76
20200016529
2020-01-16

Reclaiming method

#77
20200010343
2020-01-09

Mixed aluminum (III) and iron (II) salt solution for enhancing the hybrid zero-valent iron media system reactivity for treating metal-contaminated wastewater

#78
20190352203
2019-11-21

Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process

#79
20190337816
2019-11-07

Method and arrangement for recovery of salt

#80
20190322951
2019-10-24

Chemical compositions and methods for remediating hydrogen sulfide and other contaminants in hydrocarbon based liquids and aqueous solutions without the formation of precipitates or scale

#81
20190308886
2019-10-10

System for neutralizing the pH of exhaust condensate

#82
20190308885
2019-10-10

Water purification system, water dispenser and washing basin applying the same

#83
20190308143
2019-10-10

Seawater aeration system

#84
20190300409
2019-10-03

Apparatus and method for treating hydrogen sulfide and ammonia in wastewater streams

#85
20190300402
2019-10-03

Method for treating sulfides in waste streams

#86
20190291047
2019-09-26

Process and plant for the thermal abatement of malodorous emission from a purification plant with energy recovery from said abatement

#87
20190262769
2019-08-29

Hydrogen sulfide removal process

#88
20190248684
2019-08-15

Method for treating sulfides in waste streams

#89
20190184307
2019-06-20

Efficient and energy-saving wastewater evaporation crystallizer

#90
20190168136
2019-06-06

Ash management trench

#91
20190153332
2019-05-23

Chemical solution and methods of using same for remediating hydrogen sulfide and other contaminants in petroleum based and other liquids

#92
20190144318
2019-05-16

Process for selenium removal with biological, chemical and membrane treatment

#93
20190143266
2019-05-16

BIOLOGICAL TREATMENT OF FLUE GAS DESULFURIZATION BLOWDOWN WATER WITH UPSTREAM SULFITE CONTROL

#94
20190105604
2019-04-11

Desulfurization apparatus and method of operating desulfurization apparatus

#95
20190092667
2019-03-28

Method and apparatus for selenium removal from high TDS wastewater

#96
20190092649
2019-03-28

Wastewater treatment systems and methods

#97
20190084842
2019-03-21

Hybrid desalination systems and associated methods

#98
20190077686
2019-03-14

Zero-discharge technique for separating sludge and salt from desulfurization wastewater

#99
20190072337
2019-03-07

Recovery and re-use of waste energy in industrial facilities

#100
20190072336
2019-03-07

Recovery and re-use of waste energy in industrial facilities

#101
20190047886
2019-02-14

Method for treating sulfides in waste streams

#102
20180312738
2018-11-01

Apparatus for concentrating wastewater and for creating brines

#103
20180312416
2018-11-01

Method for treating condensed vapor streams containing odorous compounds

#104
20180306509
2018-10-25

Method of spray drying and washing and method of controlling air pollution

#105
20180305230
2018-10-25

Methods for treating selenocyanate in wastewater

#106
20180305229
2018-10-25

Method for removal of recalcitrant selenium species from wastewater

#107
20180305227
2018-10-25

Wastewater treatment method and wastewater treatment system

#108
20180304196
2018-10-25

Method and apparatus for removal of hydrogen sulphide from gas mixtures with microorganisms

#109
20180297865
2018-10-18

System and methods for removing dissolved metals from wastewater streams

#110
20180280869
2018-10-04

Modular COsequestration units and systems, and methods for using the same

#111
20180250633
2018-09-06

Process for the regeneration of an alkaline solution used in a process for the extraction of sulphur-containing compounds not comprising a washing step

#112
20180244552
2018-08-30

Scale inhibitor methods and compositions

#113
20180222782
2018-08-09

ANAEROBIC SUSPENDED GROWTH TREATMENT OF CONTAMINATED WATER

#114
20180222778
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to water to effect various treatment functions

#115
20180222777
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave to target object or target region

#116
20180221821
2018-08-09

Method and system for applying superimposed time-varying frequency electromagnetic wave for removal of SO, COand NOfrom flue gases

#117
20180216246
2018-08-02

Method and system for applying superimposed time-varying frequency electromagnetic wave for corrosion protection of submerged and/or buried structures

#118
20180202721
2018-07-19

Recovery and re-use of waste energy in industrial facilities

#119
20180201526
2018-07-19

Method and system for applying superimposed time-varying frequency electromagnetic wave for marine ballast water bio-fouling control

#120
20180200665
2018-07-19

Air purifier

#121
20180162760
2018-06-14

Methods and systems for separating solid particulates from waste water

#122
20180161725
2018-06-14

System and method for reducing liquid discharge from one or more devices

#123
20180134581
2018-05-17

Metal-organic frameworks for adsorption of liquid phase compounds

#124
20180118585
2018-05-03

Method and apparatus for advanced vacuum membrane distillation

#125
20180117520
2018-05-03

POLLUTION CONTROL DEVICE

#126
20180111855
2018-04-26

Activated hybrid zero-valent iron treatment system and methods for generation and use thereof

#127
20180111080
2018-04-26

AIR PURIFYING APPARATUS

#128
20180110224
2018-04-26

Anti-microbial agent to control biomass accumulation in SO2 scrubbers

#129
20180094866
2018-04-05

Systems for recovery and re-use of waste energy in hydrocracking-based configuration for integrated crude oil refining and aromatics complex

#130
20180094865
2018-04-05

Systems for recovery and re-use of waste energy in hydrocracking-based configuration for integrated crude oil refining and aromatics complex

#131
20180094864
2018-04-05

Systems for recovery and re-use of waste energy in crude oil refining and aromatics complex

#132
20180094863
2018-04-05

Systems for recovery and re-use of waste energy in crude oil refining facility and aromatics complex

#133
20180094862
2018-04-05

Systems for recovery and re-use of waste energy in crude oil refining facility and aromatics complex through simultaneous intra-plant integration and plants' thermal coupling

#134
20180094861
2018-04-05

Recovery and re-use of waste energy in industrial facilities

#135
20180057384
2018-03-01

Recycling and treatment process for produced and used flowback fracturing water

#136
20180043304
2018-02-15

Process for treating a hydrogen sulphide and mercaptans comprising gas

#137
20180037308
2018-02-08

Pollutant reduction device and method

#138
20180001262
2018-01-04

Treatment of industrial water systems

#139
20170362108
2017-12-21

HYBRID ACTIVATED IRON-BIOLOGICAL WATER TREATMENT SYSTEM AND METHOD

#140
20170362098
2017-12-21

System for removing bromide from a wastewater stream

#141
20170349462
2017-12-07

Process for removal of selenium from water by dithionite ions

#142
20170341963
2017-11-30

Methods and systems for remediation of heavy metals in combustion waste

#143
20170326498
2017-11-16

Sulfite Preconditioning Systems And Methods To Reduce Mercury Concentrations In Waste Water

#144
20170282094
2017-10-05

Efficient and energy-saving wastewater evaporation crystallizer

#145
20170267555
2017-09-21

Scrubber wastewater treatment method and scrubber wastewater treatment device

#146
20170253495
2017-09-07

Method and apparatus for filtration of lime-treated water

#147
20170233272
2017-08-17

Method and apparatus for selenium removal from high TDS wastewater

#148
20170203976
2017-07-20

Waste water evaporation methods and apparatus

#149
20170129792
2017-05-11

Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process

#150
20170120186
2017-05-04

Device and method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, comprising a cooling water system

#151
20170082374
2017-03-23

Recovery and re-use of waste energy in industrial facilities

#152
20170082373
2017-03-23

Recovery and re-use of waste energy in industrial facilities

#153
20170059261
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#154
20170059260
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#155
20170059259
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#156
20170058720
2017-03-02

Power generation from waste heat in integrated crude oil refining, aromatics, and utilities facilities

#157
20170058718
2017-03-02

Power generation using independent triple organic rankine cycles from waste heat in integrated crude oil refining and aromatics facilities

#158
20170058703
2017-03-02

Power generation from waste heat in integrated hydrocracking and diesel hydrotreating facilities

#159
20170058208
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#160
20170058207
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#161
20170058206
2017-03-02

Recovery and re-use of waste energy in industrial facilities

#162
20170014758
2017-01-19

Conversion of gas and treatment of a solution

#163
20170009258
2017-01-12

Process for the biological conversion of bisulphide into elemental sulphur

#164
20160375398
2016-12-29

Reclaiming device, reclaiming method, and recovery unit for COor HS or both

#165
20160368795
2016-12-22

Seawater plant with inclined aeration and mixed auto recovery

#166
20160332115
2016-11-17

Method for the purification of gases containing volatile organic compounds

#167
20160325203
2016-11-10

Spray drying apparatus and air pollution control system

#168
20160318773
2016-11-03

Metal-organic frameworks for adsorption of liquid phase compounds

#169
20160311711
2016-10-27

Methods and systems for selenocyanate removal from contaminated aqueous media

#170
20160310898
2016-10-27

Advanced tritium system and advanced permeation system for separation of tritium from radioactive wastes

#171
20160304374
2016-10-20

Method for removing mercury from washer suspensions

#172
20160289092
2016-10-06

Removal of dissolved selenium from aqueous solutions

#173
20160289091
2016-10-06

Foam intercept system

#174
20160288040
2016-10-06

AIR PURIFICATION SYSTEM AND METHOD WITH BIOLOGICAL TREATMENT OF A SCRUBBER LIQUID

#175
20160264869
2016-09-15

Coal upgrade plant and method for manufacturing upgraded coal

#176
20160251241
2016-09-01

Wastewater treatment method and wastewater treatment apparatus

#177
20160244789
2016-08-25

Thraustochytrid based process for treating waste effluents

#178
20160244349
2016-08-25

Production of ultra-high-density brines

#179
20160243494
2016-08-25

Apparatus and method for evaporating waste water and reducing acid gas emissions

#180
20160214027
2016-07-28

Spray drying apparatus for dehydrated filtrate from desulfurization waste water, and air pollution control system

#181
20160200592
2016-07-14

Method and apparatus for removing acid-gases from hydrocarbon-bearing saltwater solution

#182
20160185619
2016-06-30

WATER TREATMENT SYSTEM AND METHOD

#183
20160115053
2016-04-28

Method for removing selenium and apparatus for removing selenium

#184
20160097173
2016-04-07

Ash management trench

#185
20160075582
2016-03-17

Process for working up waste water from nitrobenzene preparation

#186
20160074806
2016-03-17

Carbon dioxide mineralization using reject brine

#187
20160060152
2016-03-03

Process for working up waste water from nitrobenzene preparation

#188
20160052808
2016-02-25

Zero valent iron systems and methods for treatment of contaminated wastewater

#189
20160046511
2016-02-18

System and method for softening water for use in a scrubber

#190
20160023921
2016-01-28

Method for making activated carbon-supported transition metal-based nanoparticles

#191
20160023202
2016-01-28

Development of a high-efficiency adsorbent from E-waste and aluminosilicate-based materials for the removal of toxic heavy metal ions from wastewater

#192
20150360974
2015-12-17

Bromide recovery from aqueous streams

#193
20150360971
2015-12-17

Concentrator and crystallizer evaporation system

#194
20150298056
2015-10-22

Desulfurization method and device for sulfuric acid production device

#195
20150298053
2015-10-22

Methods and Apparatuses for Energy Efficient Water Extraction from Air

#196
20150225263
2015-08-13

Electrokinetic process for consolidation of oil sands tailings

#197
20150182905
2015-07-02

Method for treating impurities contained in exhaust gases of ships, ship with a scrubber, and purification unit

#198
20150101484
2015-04-16

Emission gas treatment method and emission gas treatment apparatus

#199
20150083662
2015-03-26

Anaerobic suspended growth treatment of contaminated water

#200
20150076081
2015-03-19

Method and apparatus for catalyzing seawater aeration basins

#201
20150007719
2015-01-08

Method for treating impurities contained in exhaust gases of ships, ship with exhaust gas scrubber, and purification unit

#202
20140346115
2014-11-27

Aggregate of radioactive material removing particles and method of producing the same, and method of removing contaminant

#203
20140332454
2014-11-13

Compact wastewater concentrator and pollutant scrubber

#204
20140319032
2014-10-30

COMPACT WASTEWATER CONCENTRATOR AND CONTAMINANT SCRUBBER

#205
20140284214
2014-09-25

Process for the removal of ammonia from an ammonia-containing gas stream

#206
20140263094
2014-09-18

Method for electrochemical bromide and/or chloride removal

#207
20140263045
2014-09-18

Gasification waste water treatment using air separation unit oxygen

#208
20140251910
2014-09-11

Atmospheric water harvester

#209
20140170047
2014-06-19

Method for removing impurities from flue gas condensate

#210
20140161678
2014-06-12

Scrubber system having an apparatus for creating automatic an oxidizing bent and absorbent

#211
20140154143
2014-06-05

Method and an apparatus for performing an energy efficient desulphurization and decarbonisation of a flue gas

#212
20140083629
2014-03-27

Spray drying apparatus of dehydration filtrate from desulfurization waste water, and air pollution control system

#213
20140061130
2014-03-06

Method of heavy metal removal from water streams

#214
20140054230
2014-02-27

Method for monitoring and controlling the chemistry of a ZLD process in power plants

#215
20140045131
2014-02-13

Spray drying apparatus for dehydrated filtrate from desulfurization waste water, and air pollution control system

#216
20140030157
2014-01-30

Wet type exhaust gas desulfurization apparatus

#217
20130330810
2013-12-12

Photobioreactor systems and methods for treating CO2-enriched gas and producing biomass

#218
20130306556
2013-11-21

Method and a device for treating effluent seawater from a seawater scrubber

#219
20130284019
2013-10-31

Method and apparatus for treating process water

#220
20130277231
2013-10-24

Electrolytic apparatus and method for treating water to remove nitrates, phosphates, arsenates, and molecules of high molecular weight

#221
20130272938
2013-10-17

Method and an apparatus for performing an energy efficient desulphurization and decarbonisation of a flue gas

#222
20130248121
2013-09-26

Spray-drying device for dehydrated filtrate from desulfurization wastewater, air pollution control system and flue gas treatment method

#223
20130233796
2013-09-12

TREATMENT OF INDUSTRIAL WATER SYSTEMS

#224
20130220792
2013-08-29

Method of treatment of amine waste water and a system for accomplishing the same

#225
20130199567
2013-08-08

Method for washing incineration ash and dust contained in extracted cement kiln combustion gas

#226
20130183204
2013-07-18

System for deaeration in a flash vessel

#227
20130149206
2013-06-13

System for processing mercury in flue gas

#228
20130131253
2013-05-23

Metal scavenging polymers and uses thereof

#229
20130092026
2013-04-18

Chilled ammonia based COcapture system with wash system and processes of use

#230
20130074947
2013-03-28

CONDENSATE LIFTING INSTALLATION SYSTEM

#231
20130071311
2013-03-21

Air pollution control system and air pollution control method

#232
20130060076
2013-03-07

METHOD TO REDUCE PCB CONTENT AND/OR LEAD TCLP SOLUBILITY

#233
20130037493
2013-02-14

Exhaust gas and gas scrubber fluid cleaning equipment and method

#234
20130036868
2013-02-14

Process for producing pig iron or liquid primary steel products

#235
20130026107
2013-01-31

Methods and apparatuses for filtering water from a river or stream

#236
20130026027
2013-01-31

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Carbon dioxide separation and recovery apparatus

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Biological treatment method for treating waste water and controlling COD loading rate per bacterium and COD concentration in effluent

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System for reducing environmental pollutants

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METHODS AND SYSTEMS USING NATURAL GAS POWER PLANT

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Methods and apparatuses for filtering water from a river or stream

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Air pollution control system and air pollution control method

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Methods and systems for treating sour water

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Process for removing sulfide from alkaline washing liquids

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