Rehabilitating or regenerating filter medium - Liquid purification or separation patents
Featured patents
Filter Device Operating Method
US 08518274 B2, Aug. 27, 2013, Bernhard Schlichter et al. / Hydac Process Technology GmbH (Neunkirchen, DE)
A method of operating a filter device, comprising the steps of:…
Method and Device for Cleaning of Filter
US 08518273 B2, Aug. 27, 2013, Magnus Ingelman et al. / Metso Paper Sweden AB (Sundsvall, SE)
A method for cleaning a filter sheet and filter cake in a pressurized white…
Method for Filtering a Suspension and Filter Device
US 08496839 B2, July 30, 2013, Heinz Bonn / Outotec Oy (Lappeenranta, FI)
A method for filtering a suspension, comprising the step:…
Methods and Apparatus for Treating Water and Wastewater Employing a Cloth Disk Filter
US 08852445 B2, Oct. 7, 2014, Yongming Xia et al. / Alfa Laval Ashbrook Simon-Hartley, Inc (Houston, US)
A filtration apparatus for treating water or wastewater comprising:…
Microfiltration Devices
US 08444863 B2, May 21, 2013, Wei-Chih Chen et al. / Streamline Capital, Inc. (Atlanta, US)
A method of treating a microfiltration filter having an influent side…
Patentorg has 5 documents under Rehabilitating or Regenerating Filter Medium Patents.
Other subcategories for category Liquid purification or separation
- Processes 2
- Treatment by Living Organism 3
- Including Plant or Animal of Higher Order 9
- Including Collecting or Storing Gas 25
- And Reusing Oxidant 2
- Anaerobically, With Subsequently Aerobically Treating Liquid 29
- Adding Enzyme or Releasing Same by Treating Microorganism 5
- Dividing, Treating, and Recombining Liquid 2
- Including Dewatering Sludge 2
- Including Adding Ancillary Growth Medium for Microorganism 11
- Digesting Sludge 1
- Controlling Process in Response to Stream Constituent or Reactant Concentration 2
- Utilizing Contact Surfaces Supporting Microorganism 10
- Particulate Media 4
- In Bed Form 1
- And Rehabilitating or Regenerating Same 1
- Rotating Contactor 1
- Aerobic Treatment 2
- Utilizing Specific Oxidant, Other Than Air Alone 1
- And Internally Circulating the Liquid 1
- And Additional Treating Agent Other Than Mere Mechanical Manipulation 8
- Treating by Enzyme 3
- Liquid / Liquid Solvent or Colloidal Extraction or Diffusing or Passing Through Septum Selective as to Material of a Component of Liquid; Such Diffusing or Passing Being Effected by Other Than Only an Ion Exchange or Sorption Process 17
- Liquid / Liquid or Gel Type Chromatography 11
- Including Cleaning or Sterilizing of Apparatus 19
- Including Regulating Pressure to Control Constituent Gradient at Membrane or to Prevent Rupture of Membrane 7
- Including Ion Exchange or Other Chemical Reaction 11
- Including Prior Use of Additive 15
- Passing Through Membrane in Vapor Phase 20
- Extracting Water From Brine Utilizing Liquid / Liquid Solvent or Colloidal Extraction 1
- Utilizing Liquid Membrane in Liquid / Liquid Solvent or Colloidal Extraction 4
- Diffusing or Passing Through Septum Selective as to Material of a Component in Liquid / Liquid Solvent or Colloidal Extraction 8
- Biological Fluid 5
- Hemodialysis 8
- Maintaining Critical Concentration(s) 4
- Diffusing or Passing Through Septum Selective as to Material of a Component of Liquid 1
- Filtering Through Membrane 14
- Removing Specified Material 9
- Hyperfiltration 20
- Utilizing Specified Membrane Material 1
- Chromatography 24
- Including Liquid Flow Diversion 3
- Ion Exchange or Selective Sorption 12
- By Passing Through Suspended Bed 5
- And Liquid Testing or Volume Measuring 5
- Including Diverse Separating or Treating of Liquid 4
- By Distilling or Degassing 4
- By Making an Insoluble Substance or Accreting Suspended Constituents 1
- Utilizing Organic Agent 1
- Utilizing Aluminum, Calcium, or Iron Containing Agent 3
- By Chemically Modifying or Inhibiting Dispersed Constituent 2
- Prior to Ion Exchange or Sorption 1
- Including Rehabilitating or Regenerating Exchange Material or Sorbent 7
- Of Oil Sorbent Material 5
- Fractional, Selective, or Partial Type 1
- Utilizing Gas, Water, or Chemical Oxidizing or Reducing Agent 1
- Utilizing Organic Regenerant 1
- Continuous Cyclic Process 1
- Including Liquid Flow Direction Change 1
- Utilizing Exchange or Sorbent Material Associated With Inert Material 6
- Including Oil Sorbent 2
- Removing Ions 4
- Anions 2
- Metal Complexed 1
- Calcium or Magnesium 5
- Heavy Metal 6
- Sorbing Water From Diverse Liquid 3
- Sorbing Organic Constituent 1
- From Aqueous Material 2
- Oil Removed 1
- Utilizing Activated Carbon 2
- Using Magnetic Force 27
- Preventing, Decreasing, or Delaying Precipitation, Coagulation or Flocculation 5
- Utilizing Organic Agent 2
- Acrylic Polymer 1
- Making an Insoluble Substance or Accreting Suspended Constituents 10
- Effecting Flotation 10
- Including Chemical Addition (With or Without Bouyancy Gas) 1
- Including Emulsion Breaking 3
- Controlling Process in Response to Stream Condition 3
- Treating the Insoluble Substance 4
- Including Recycling 1
- Of Separated Solids 1
- Including Degassing 1
- Including Chemical Reduction 1
- Including Oxidation 5
- Of Iron or Manganese Material 3
- Utilizing Precipitant, Flocculant, or Coagulant, Each With Accelerator or With Each Other or Plural Precipitants, Flocculants, or Coagulants 5
- Regulating pH 3
- Sequential Introduction 2
- Including Organic Agent 1
- From Natural Source or Chemical Modification Thereof 1
- Synthetic Polymer 1
- Acrylic 1
- Nitrogen Containing 2
- Nitrogen Containing 1
- Derived From Alkyl Halide or Epihalophydrin Reactant 1
- Including Agitation 3
- Including Controlling Process in Response to a Sensed Condition 9
- Pressure Sensing 12
- Temperature Sensing 5
- PH Sensing 1
- Level Sensing 7
- Turbidity or Optically Sensing 1
- Electrical Property Sensing 3
- Including Geographic Feature 1
- Stormwater Treatment 2
- Filtering 4
- Dredging Sediments / Water Mixture From Underwater Beds Treated 1
- Body of Freshwater, Surface Flowing Freshwater, or Body of Saltwater 6
- Utilizing Floating Treating Means 6
- By Chemical Treatment 3
- Utilizing Electrical or Wave Energy Directly Applied to Liquid or Material Being Treated 13
- Destroying Living Organisms 1
- Destroying / Degradation of Chemical Contaminant 1
- Separating Particles 1
- Microwaves 2
- Visible Light 1
- Ultraviolet Radiation 7
- Destroying Living Organisms 3
- Destroying / Degradation of Chemical Contaminant 1
- Photocatalytic 5
- Generating Treatment Chemical by Electrical Energy 3
- Ozone 1
- Chlorine or Chlorine Compound 3
- Chemical Treatment 12
- Including Degassing 5
- Chlorine or Bromine Containing 5
- Organic 1
- By Chemical Reduction 1
- By Oxidation 2
- Utilizing Peroxy Compound 4
- Utilizing Ozone 4
- Liquid Phase High Temperature and Pressure 1
- Catalytic 1
- Destroying Microorganisms 3
- Separating 13
- Including Treating Separated Solids 1
- Including Drying 5
- Including Preliminary Conversion to Liquid State 1
- Including Temperature Change 3
- Skimming 1
- Including Precoating Filter Medium With Filter Aid 1
- Including Movement of Filter During Filtration 7
- Centrifugally Extracting 5
- Blood 2
- Rotating Belt 2
- Cleaning Filter Utilizing Wave Energy 1
- Of Particulate Bed 1
- Cyclonic, or Centrifugal 12
- Introducing Liquid Tangentially 9
- Isolating Layer 4
- By Diverse Fluid 1
- Reverse Flow 2
- Filtering Immiscible Liquids 1
- Utilizing Gravitational Force 4
- Including Change of Mainstream Flow Direction 8
- Utilizing Parallel Separation Passages 2
- Including Specified Feature of Settled Solids Removal 2
- And Additional Diverse Separation 1
- And Recirculating Liquid 2
- Plural Separating 3
- Utilizing Particulate Bed 2
- Including Specified Pressure Change 3
- With Alarm, Indicator, Register, Recorder, Signal or Inspection Means 21
- Material Level or Thickness Responsive 16
- Responsive to Fluid Flow 7
- Meter-Controlled Cyclic Systems 1
- Fluid Pressure Responsive 11
- Position or Extent of Motion 6
- In Effluent Conduit 1
- Transparent 3
- Sight Glass 1
- Constituent Mixture Variation Responsive 3
- With Membrane 2
- Flow, Fluid Pressure or Material Level, Responsive 4
- Fluid Current Controlled Cyclic System 1
- Diverse Sensing Means 1
- Responsive to Material Level 10
- Rotary Movement of Filter or Mechanical Cleaner 1
- Backwash or Blowback 6
- Discharge of Treated Material 3
- With Separator Inlet Control 1
- By Weight of Solids 1
- By Treated Liquid Accumulation 2
- Permitted by Filtrate Accumulation 2
- Check Valve Controlled 1
- Vent Control 6
- Float 1
- Controls Movable Separator 1
- Fluid Pressure Responsive By-Pass 8
- By Movement of Separation Medium 2
- Plural Elements Controlled 4
- Check Valve 2
- Maintaining Stream Pressure or Flow 2
- With Time Control 1
- With Program Actuator 1
- Automatic Control 6
- Thermal 1
- With Gas-Liquid Surface Contact Means 11
- With Separator 7
- Structural Installation 7
- Plural or Diverse Screens 2
- Fluid Stream or Residue Operated 1
- Revolving Cylindrical Strainer 1
- Endless Belt Strainer 1
- Fixed Strainer 4
- Grated Inlet Surface Drain 7
- Flat Grating at Surface Level 4
- Closed Circulating System 2
- Having Magnetic Treating Means 3
- Plural Separators 3
- For Swimming Pool or Spa 6
- With Means to Add Treating Material 4
- Separator External to Swimming Pool or Spa 1
- Separator for Use on Swimming Pool or Spa Bottom and Separator for Use at Water Surface 1
- Separator for Use on Swimming Pool or Spa Bottom 2
- Debris Collecting Bag 1
- Mesh or Screen Filter at or Near Water Surface 1
- For Aquarium 3
- Separator Using Living Organism 2
- Separator or Part Thereof Associated With Bottom of Aquarium 1
- For Cooking Oil System 2
- Geographic 2
- For Stormwater Treatment 16
- Floating Means 9
- Groundwater 4
- Septic System Including Drain Field or Leach Field or Waste Liquid Treatment System 1
- Body of Freshwater 1
- Body of Saltwater 8
- Machinery 2
- Separator Ancillary to Storage Tank 1
- Submerged Separator 2
- Filter Supported by Frame 3
- Comminuting 2
- With Heater or Heat Exchanger 1
- Vapor or Gas Removal 2
- Flow Line Connected in Series With Distinct Separator 1
- Diverse Separators 1
- For Filter 3
- Imbedded or Between Filter Media 1
- With Gas Separator 7
- Plural Chambers With Movement of Granules Therebetween 6
- With External Supply Means for Regenerating Medium, e.g., Water Softening System 2
- With Preliminary Chemical Manufacture 3
- Recirculation 1
- Serially Connected Distinct Treating or Storage Units 1
- With Semipermeable Membrane, e.g., Dialyzer, Etc. 1
- Of Filtrate 2
- With Means to Add Treating Material 8
- Chromatography 52
- Thin Layer, e.g., Plate, Etc. 1
- Spaced Along Flow Path 2
- Serially Connected 3
- Filters 1
- With Distinct Reactor Tank, Trough or Compartment 6
- Chemical Holder in Series With Separator 4
- Within Gravitational Separator 1
- With Mechanical Agitator 1
- Submerged Fluid Inlet 1
- With Outlet at Surface, e.g., Froth Flotation, Etc. 2
- And Gas Injecting Means Other Than by Mechanical Agitation 3
- Magnetic 11
- With Additional Separator 10
- Imperforate Base Recess in Plate 1
- With Repair or Assembling Means 1
- With Repair or Assembling Means 50
- Removable Treatment Part With Normally Disabled Flow Controller 6
- Placement of Container Opens Flow Controller 5
- Sliding or Rolling on Guide Means 3
- Hoist or Handle Means 3
- Hand Manipulable 3
- Convertible 1
- Filter Having Selectively Usable Flow Connector Means 2
- With Movable Support 2
- With Aerating Means 1
- With Oil Water Skimmer 1
- Electrical Insulating or Electricity Discharging 11
- Attached Variable Flow Controller 2
- Limited Opening Cover 1
- Filtrate Splash Plate Deflector 1
- With Drip, Overflow or Content Draining Feature 7
- Bracket or Leg Support for Static Separator Assembly 1
- Combined 2
- Serially Connected Distinct Treating With or Without Storage Units 1
- Parallel 2
- Cascade 2
- One Unit Inside Another 5
- With Storage Unit 5
- Having Membrane 3
- With Pump, Gas Pressure or Vacuum Source 6
- Diverse 3
- Including Multiple Operation Unit 2
- One Unit Supports Another 1
- Particulate Material Type Separator, e.g., Ion Exchange or Sand Bed 2
- Selective Units or Compartments 1
- With Spaced Non-Particulate Separating Means 1
- With Rehabilitation Means 2
- Including Means to Apply Gas to Bed 4
- Multi-Way Valve Unit 1
- Removable Cartridge or Hand-Manipulated Container 4
- Embedded Baffle 1
- Within Flow Line or Flow Line Connected Closed Casing 1
- Alternate Filters and Traps in Series 1
- Tangential Flow, Spiral or Convolute Baffle 2
- Baffle Preceding or Within Sediment Trap 1
- Downstream of Filter Medium 1
- Sediment Discharge Means 2
- Valve Controlled 1
- Spaced Filters 1
- Casing Divided by Membrane Into Sections Having Inlet(s) Outlet(s) 6
- Membrane Secured With Adhesive of Specified Composition 3
- Rotating Mechanical Agitator Adjacent Membrane 2
- Plural Diverse Structured Membranes Within a Single Casing 1
- Permeated Liquid Quantity Measurement or Control 3
- Energy Recovery From Treated Liquid 5
- Membrane Movement During Purification 1
- Nontranslatory Rotary 1
- With Membrane Cleaning or Sterlizing Means (Other Than by Filter Movement or Rotating Agitator) 7
- Dialyzer With Dialysate Proportioning Means 8
- Each Section Having Inlet(s) and Outlet(s) 2
- Coiled Membrane 2
- Planar Membrane 5
- Spiral Flow 2
- Plural Cylindrical Membranes All Connected for Parallel Flow 2
- All Cylindrical Membranes Are Parallel 4
- Coiled Membrane 2
- Planar Membrane 3
- Spiral Flow 5
- Pleated Membrane 1
- Cylindrical Membrane 1
- All Cylindrical Membranes Are Parallel 6
- With Embedded Baffle 2
- Filters 4
- Tubular 3
- Plural Cleaners and Plural Movable Elements 1
- Spaced Filter Wall Type, e.g., Multiple Hollow Leaves 6
- Backwash or Blowback 1
- Sequential Backwash 1
- In Series for Prefilt Flow 3
- Tortuous Path 1
- Concentric Filter Elements 2
- Individually Controlled for Removal With Common Receiver 1
- One Element Within Another 2
- Radial or Radially Connected to Central Header 1
- Spaced Wall-Type Filters 1
- Filter 3
- With Movable Means to Compress Medium 2
- Free Cleaning Means, e.g., Loose Abrading Particles 1
- Cleaner 1
- Movable Medium 3
- Centrifugal Extractor 4
- With Individual Article Container or Support 1
- Fixed 1
- Axially Reciprocable 1
- Rotating Element Construction 4
- Vibrator and Unidirectional Motion Filter Medium 4
- Rolls or Confining Members Contacting Residue 3
- With Cleaning Means 1
- Backwash or Blowback and Additional Cleaner 1
- Belt Type 1
- Superimposed on Additional Moving Support 1
- Drum Type 1
- Movable Prefilt Distributor 1
- Vacuumized Filtrate Receiver 1
- Fluid Cleaning 1
- Backwash or Blowback 2
- With Pump, Gas Pressure, or Suction Source 3
- For Drinking Water 1
- For Fuel System 2
- With Flow Controller for Material Being Treated 2
- Selective Directive Flow Relative to Filter 1
- Filter Surrounds Valve 1
- Within Flow Line or Flow Line Connected Close Casing 2
- Vented 1
- Central Internal Liquid Receiver, e.g., Tube 6
- Inlet and Outlet at Same End 1
- Inlet and Outlet at Same End 1
- Clamped in Casing Joint 1
- Single Open-End-Type Filter Element 1
- Pipe End Attached Closed Casing, e.g., Faucet 1
- Gasket Within Casing or Spaced Removable End Members 4
- Filter Element Clamped Between Closure and End Wall 1
- Filter Element Attached to Closure 1
- Receptacle and Modified Spacing Surface or Support for Filter Medium 5
- Prefilt Flow Distributor or Diverter 2
- With Central Pervious Tubular Receiver 1
- Pipe or Plate Attached Type 2
- Portable Receptacle Draining Type 2
- Supported, Shaped or Superimposed Formed Mediums 3
- Spaced Wall Type, e.g., Hollow Leaf 1
- Concentric, Convolute or Pleated 1
- Abutted or Superimposed Members 1
- For Series Flow 1
- Integral or Coated Layers 11
- All Fibrous 1
- Alternating Dissimilar 1
- Pleated 4
- Bonded End Caps 2
- Filter Element 1
- Helically Wound 1
- Screens, e.g., Woven 2
- Material 1
- Semipermeable Membrane 4
- Isotropically Pored 4
- Hollow Fiber or Cylinder 7
- Metal Containing 4
- Organic 7
- Cyclic 2
- Cellulose Acetate 2
- Homocyclic 1
- Acrylate 3
- Alkene Other Than Vinyl 3
- Amine 1
- Amide 12
- Imide 3
- Sulfone 3
- Vinyl 1
- Sterilizing or Neutralizing Agent Containing 2
- Sorptive Component Containing 9
- Diverse Granular or Fibrous 9
- With Adhered Coating or Impregnant 2
- Including Fibers 2
- Coated or Impregnated, e.g., Adhesively Bound 1
- Fibrous 1
- Porous Unitary Mass 6
- Liquid as Separating Medium 1
- Tangential Flow or Centrifugal Fluid Action 13
- Multiple Cyclone 3
- With Movable Means Affecting Flow 1
- Resilient Deformable Isolator 1
- Sectional Isolator 1
- Material Supply Distributor 2
- Superposed Compartments or Baffles, e.g., Parallel Plate Type 2
- Heavier Constituent Trap, Chamber, or Recess 1
- Lighter Constituent Trap 1