Apparatus and method for treating radioactive nitrate waste liquid

Denitrification process

Wastewater treatment method and wastewater treatment apparatus

Wastewater treatment method

Wastewater treatment method and wastewater treatment apparatus

Wastewater treatment method using immobilized carrier

Method for treating nitrogen in waste streams

Method for Treating Percolate Water Produced During Dry Fermentation

Digesting and continuously self-cleaning aquarium filter

Waste water treatment apparatus

Plant for aerobic and anaerobic digestion treatment by PFR

Methods of providing an aerobic medium in a wastewater treatment bioreactor compartment

Compound for denitrifying wastewater

System and method for treating ammonia-based wastewater

Liquid-solid circulating fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal

Denitrification system

Membrane supported biofilm apparatus

Water denitrification

Method for removing contaminants from ground water

Apparatus and methods for control of waste treatment processes

Functionalized green filtration media for passive underground drainfield for septic tank nutrient removal

Vertical-horizontal filter unit for the biological purification of polluted water

Passive underground drainfield for septic tank nutrient removal using functionalized green filtration media

Nitrification and denitrification of digested biosolids

SYSTEM FOR TREATING WATER

Method of supporting denitrification

SYSTEM FOR TREATING RECIRCULATION NUTRIENT USING FLOATING MEDIA

Method For Composting And Treating Food Waste By Using Wood Chips And Apparatus Therefor

DENITRIFICATION TREATMENT SYSTEM AND METHOD

SAF system and method involving specific treatments at respective stages

Dual cell nitrogen removal apparatus

Method and system for treating water and utilizing a membrane filtering system

Wastewater treatment apparatus

Treating unit for simultaneous removal of carbon and nitrogen from wastewater and treating apparatus having the same

Method for the treatment of ammonia-containing waste water

Wastewater treatment method

Bioreactor and method for the biological purification of water

Mixing eductor

Method of biofiltration of a liquid effluent

Method of denitrifying wastewater

Method and apparatus for simultaneous clarification and endogenous post denitifrication

Apparatus for denitrifying wastewater

Apparatus for denitrifying wastewater

Arrangement of denitrification reactors in a recirculating aquaculture system

FLUIDIZED BED APPARATUS AND METHOD FOR REMOVING SOLUBLE AND PARTICULATE MATTER FROM A LIQUID

Water treatment process

Waste gas/wastewater treatment equipment and method of treating waste gas/wastewater

METHOD OF FEEDING MICROBIAL ACTIVITY CONTROLLING SUBSTANCE, APPARATUS THEREFOR, AND MAKING USE OF THE SAME, METHOD OF ENVIRONMENTAL CLEANUP AND BIOREACTOR

System and method for anaerobic digestion of biomasses

Waste water treatment apparatus and waste water treatment method

Water treatment bioreactor using hollow filaments

Wastewater denitrification system

Submerged fixed film anoxic bioreactor

Apparatus for waste water treatment

IN-SITU GROUNDWATER NITRIFICATION AND DE-NITRIFICATION REMEDIATION SYSTEM

Treatment system for enhanced water and wastewater nutrient removal

Process and equipment for treating ammonium containing liquid

Process and equipment for treating ammonium containing liquid

Sewage treatment control device, method, and sewage treatment system

Wastewater treatment system with simultaneous separation of phosphorus and manure solids

Treatment of waste mixture containing liquids and solids

De-nitrification treatment system and method

Low phosphorus water treatment methods

Membrane biofilm reactor method for reducing the concentration of oxidized contaminants in ground water

Multi-gas bioreactor and related methods

Apparatus and method for treating FGD blowdown or similar liquids

Method and system for aerating wastewater for re-use

Biomass support members and panels, biological processes and biological wastewater treatment apparatus

Process and apparatus for treating nitrogeneous liquor

Methods for total nitrogen removal

System for supporting denitrification

Advanced treatment method of ethanolamine-wastewater based on physico-chemical and biological coupling process

High-denitrification shared type orbal oxidation ditch

Process and equipment for treating ammonium containing liquid

Process and equipment for treating ammonium containing liquid

Integrating recycle stream ammonia treatment with biological nutrient removal

Process for providing oxygen to a liquid

Fluid bed expansion and fluidisation

Use of a magnetic separator to biologically clean water

Process for the simultaneous removal of BOD and phosphate from waste water

Liquid-solid fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorous removal

Methods and systems for biological treatment of flue gas desulfurization wastewater

Methods and apparatus for the removal of organic matter and related degradation products from water

Method for removal of contaminants from water

Apparatus for denitrifying wastewater

Method and apparatus for continuously controlling denitrification in variable nitrogen loads in wastewater

WASTE TREATMENT METHOD AND APPARATUS WITH INTEGRAL MEMBRANE APPARATUS

Apparatus for wastewater treatment using nitrogen/phosphorus removal and floatation separation

Aquarium purifier and aquarium purification method

Modular wastewater treatment system

System for removal of contaminants from aqueous solution

Biomass carrier promoting simultaneous nitrification-de-nitrification

Method for treating water containing ammonium-nitrogen

Method and apparatus for nitrogen removal and treatment of digester reject water in wastewater using bioagumenation

Biological wastewater treatment process and reactor

Aerated anoxic membrane bioreactor

Wastewater purification method and apparatus

In-situ groundwater nitrification and de-nitrification remediation system

Pellets comprising sludge containing nitrifying bacteria for treating wastewater

Method For Treating Ammonia-Containing Wastewater

Process for biological purification of waste water with simultaneous decomposition of organic and nitrogen-containing compounds

Tidal vertical flow wastewater treatment system and method

Wastewater treatment with aerobic granules

Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems

Denitrification process

Apparatus and method for treating FGD blowdown or similar liquids

Method and a plant for waste water treatment

Method for nitrogen removal and treatment of digester reject water in wastewater using bioaugmentation

NITROGEN RECOVERY SYSTEM AND METHOD USING HEATED AIR AS STRIPPING GAS

Apparatus and method for denitrification of treated water from aerobic wastewater treatment systems

Closed sulfur circulation system

Complete Water Management Process and System

Nitrogen removing apparatus comprising nitrification carrier containing ammonia-oxidizing bacteria

Method of producing a nitrification carrier containing ammonia-oxidizing bacteria for removing nitrogen

Method and system for filtration of wastewater

Purified water reclamation process

Water treatment device

Method for purifying coke waste water using a gas-permeable membrane

Nitrifying method of treating water containing ammonium-nitrogen

Method and installation for the biological treatment of water using activated sludge and comprising aeration regulation

Apparatus and method for treating wastewater containing nitrogen-containing dyes

System for treating wastewater containing organic compounds

Tidal vertical flow wastewater treatment system and method

Apparatus and method for performing tertiary treatment of sewage based on porous filtering media

In-situ groundwater nitrification and de-nitrification remediation system

Apparatus for removing nitrogen

Wastewater treatment device

Process and equipment for treating ammonium containing liquid

Fluid bed expansion and fluidisation

Denitrification reactor with a fixed culture

Mixing eductor

Supported biofilm process

Multiple soil-layering system for wastewater purification

Sewage treatment system for use in marine toilet and other remote toilets

Autotrophic denitrification chamber and calcium reactor

Methods and apparatus for the removal of organic matter and related degradation products from water

Integrated hydroponic and wetland wastewater treatment systems and associated methods

Wastewater treatment control

Method and apparatus for treating animal waste and wastewater

Membrane bioreactor, process and aerator

Supported biofilm apparatus

Soil covered environmentally affirmative household sewage treatment system

Apparatus and methods for control of waste treatment processes

Apparatus and method for wastewater treatment

Nitrogen removal system and method for wastewater treatment lagoons

Method for operating anaerobic ammonium oxidation vessel and anaerobic ammonium oxidation equipment

Wastewater treatment system

Methods for total nitrogen removal from waste streams

Combined tidal vertical flow and horizontal flow wastewater treatment system and method

Method and system for removal of contaminants from aqueous solution

Advanced automated control and feedback process for wastewater treatment

Methods and apparatus for biological treatment of aqueous waste

Method for treating an effluent in three biological steps

Method for treating water containing ammonium-nitrogen

Low oxygen biologically mediated nutrient removal

Compact Sewage Secondary Treatment System

Mixed bed trickling reactor using microbeads

Method and apparatus of removing nitrogen

Zero excess sludge membrane bioreactor

Denitrification system for nitrified wastewater or nitrified water

Biologically active reactor system and method for treating wastewater

Process and apparatus for waste water treatment

Nitrogen recovery system and method using heated air as stripping gas

Wastewater treatment control

Autotrofic sulfur denitration chamber and calcium reactor

Integrated hydroponic and fixed-film wastewater treatment systems and associated methods

Waste water treatment process

Autotrofic sulfur denitration chamber and calcium reactor

Method and system for treating wastewater containing organic compounds

Tidal vertical flow wastewater treatment system and method

Method for recovering a disposal trench with a biomat slime, and method for operating a waste treatment vessel

Integrated closed loop system for industrial water purification

Membrane bioreactor, process and aerator

Method and apparatus for the treatment of wastewater

Flood and drain wastewater treatment system and associated methods

Method for treating wastewater in a membrane bioreactor to produce a low phosphorus effluent

Method, apparatus and system for removal of contaminants from water

Centralized wastewater treatment method and system

Deep denitrification treatment system for wastewater by anaerobic-anoxic-oxic based on high-oxygen three-phase contact

Apparatus and system for removing liquid from slurry

Device and process to treat and disinfect sewage, food processing wastewater and other biologically contaminated water