Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 3 - Biological treatment of water, waste water, or sewage
Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
08/2003
08/27/2003CN1119285C Apparatus for producing air-saturated water
08/26/2003US6610205 Process for nitrifying denitrifying organic waste water
08/26/2003US6610204 Microbiological removal of bromine salts from fluid streams
08/21/2003WO2003068694A1 Method for biological purification of water using a carrier material
08/21/2003US20030155308 Flocculation, precipitation, filtration
08/21/2003US20030155296 Process and apparatus for waste water treatment
08/21/2003DE10203076C1 Sewage treatment assembly has two chambers to hold the sludge and treat it biologically with connecting U-shaped channel giving controlled flow from first to second chamber
08/20/2003EP0891302B1 Process for the biological purification of waste water
08/20/2003CN2567207Y Biological treatment device for sewage
08/20/2003CN2566927Y Floating-ball type automatic layering filter device for sewage
08/20/2003CN1437564A Process for production of hydrogen from anaerobically decomposed organic material
08/20/2003CN1437499A Improved filtration device for a waste water treatment system
08/20/2003CN1118435C 水处理装置 Water treatment plant
08/20/2003CN1118434C Method for purifing and/or improving water with tyre
08/19/2003US6608184 Such as fatty oil and acids, glycerol, glycols, lactic acid, urea, fertilizer, carbohydrates, ethanol, by concentrating and filtering out the solid sewer sludge, hydrolysis of the cellulose in sludge and fermentation, recovery
08/19/2003CA2318710C Sewage treatment plant
08/14/2003WO2003067082A1 Disposal of waste fluids
08/14/2003WO2003066837A1 Pseudomonas sp. fk 916 producing decomposition enzyme of organic matter and method for decomposition of organic waste using the same
08/14/2003WO2003066536A1 Biomass concentrator reactor
08/14/2003WO2003066535A1 Method and system for controlling a biological reactor unit
08/14/2003WO2003065798A1 Integrated closed loop system for industrial water purification
08/14/2003US20030150822 Filter device is arranged in the area of the reactor base, and has a filter element that is pivot-connected to a hollow pivoting carrier body so that the filtrate can reach the interior of the carrier from the interior of the filter
08/14/2003US20030150801 Using a bacterial culture having the ability to grow on petroleum hydrocarbons as sole carbon source and having been isolated from a hydrocarbon contaminated soil or hydrocarbon-containing sludge
08/14/2003US20030150798 Membrane module for gas transfer and membrane supported biofilm process
08/14/2003US20030150788 Self-adjusting fluid surface skimmer and fluid treatment system using same
08/14/2003US20030150786 Apparatus for three-phase separation during treatment of wastewater and sludge
08/14/2003CA2474795A1 Disposal of waste fluids
08/14/2003CA2474617A1 Integrated closed loop system for industrial water purification
08/13/2003EP1334952A2 Process and apparatus for treating liquids containing ammonium, phosphate and potassium
08/13/2003EP1334075A1 Method and apparatus for biological wastewater treatment
08/13/2003EP1334073A2 Treatment of waste water and apparatus therefor
08/13/2003CN2565813Y Screw driving rotating type uniform speed water decanting apparatus
08/13/2003CN2565812Y Integrated membrane bioreactor
08/13/2003CN2565811Y Moving bed deep cleaning sewage treatment equipment
08/13/2003CN1435383A Microbe capable of degradation removing microcystin from water bloom
08/13/2003CN1435382A Filtering material for deep treatment of sewage
08/13/2003CN1435380A Biological cleaning treating device and treating method
08/13/2003CN1435379A Device for electro-biologic treatment of organic sewage difficult to degrade
08/13/2003CN1435281A Livestock and poultry dung recovery treating method
08/12/2003US6605220 Apparatus and method for wastewater treatment with enhanced solids reduction (ESR)
08/12/2003US6605219 Wastewater treatment apparatus and method
08/12/2003CA2147659C Oxygen enriched liquids, method and apparatus for making, and applications thereof
08/07/2003WO2003064336A1 Method of dewatering sludge using enzymes
08/07/2003WO2003064335A1 Hybrid biological membrane reactor for the treatment of urban and industrial waste water
08/07/2003WO2003064334A1 Method and plant for biological treatment of aqueous effluents for purification thereof
08/07/2003WO2003064328A1 Device for purifying waste water, according to the activated sludge process
08/07/2003WO2003027022A3 Wastewater treatment system
08/07/2003US20030146153 Chemical cleaning backwash for normally immersed membranes
08/07/2003US20030146152 Biomass concentrator reactor
08/07/2003US20030146140 System and process for treating carbonaceous wastes
08/07/2003CA2474157A1 Method and plant for biological treatment of aqueous effluents for purification thereof
08/07/2003CA2379590A1 Control system for an inflatable membrane cover
08/06/2003EP1331984A1 Gas dissolving apparatus and method
08/06/2003CN2564563Y Biopurifying treater for aquarium without changing water
08/06/2003CN2564562Y Microbe carrier for treating sewage
08/06/2003CN2564561Y Circular spin water distributor
08/06/2003CN2564560Y Circulation preciprocating water distributor
08/06/2003CN2564559Y Aerobic bioreaction sewage treater
08/06/2003CN2564558Y Sealed mechanical rotary water distributing equipment
08/06/2003CN2564546Y Waste water reusing device for washing vehicle
08/06/2003CN1433975A Process for treating sewage and waste water
08/06/2003CN1116918C Constant-flow ultrafiltration method and equipment thereof
08/05/2003US6602426 Water treatment using ozone and having a reduced likelihood of bromate formation from bromides found in the water
08/05/2003US6602417 Process for the treatment of waste water containing specific components e.g. ammonia
08/05/2003US6602416 Anaerobic water treatment
08/05/2003US6602407 Oriented structure for treating a fluid
08/05/2003CA2264853C Modular filtration system
07/2003
07/31/2003WO2003062154A1 Method of treating waste water
07/31/2003WO2003062153A1 Treatment of contaminated activated charcoal
07/31/2003WO2003061814A1 Diffuser and an aeration apparatus equipped with such a diffuser
07/31/2003US20030143718 Entrapping and immobilizing any sludge into a monomer or a prepolymer for immobilizing microorganisms, and then subjecting the entrapped and immobilized sludge to heat treatment at 30 to 80 degrees Celcius; for sewage treatment
07/31/2003US20030143711 Hydrolyses organophosphate insecticides including malathion; bioremediation
07/31/2003US20030141256 Method of dewatering sludge using enzymes
07/31/2003US20030141255 Adding cellulolytic enzymes to sludge; adding peroxidases to sludge to form mixture of water and and coagulated and flocculated solids; separating coagulated and flocculated solids from the water
07/31/2003US20030141244 Induced sludge bed anaerobic reactor
07/31/2003US20030141243 Anaerobic chemical reactors; gas stripping
07/31/2003US20030141229 Wastewater treatment apparatus
07/31/2003DE20304722U1 System for removing impurities from water comprises partially or wholly water-permeable support, in or on which mussels are grown
07/31/2003DE20121793U1 Effluent air or water treatment comprising microbiological colony on soft ferrite porous substrate with catalyst in the presence of changing magnetic fields
07/30/2003EP1331204A1 Nitrite-type nitrification carrier and method for producing the same and method and apparatus for removing nitrogen using the same
07/30/2003EP1330415A1 Polluted water treatment system
07/30/2003EP1230169B1 Process for the purification of industrial waste water from a propylene oxide production process
07/30/2003CN2563150Y Biological reactor for treating amino nitrogen waste water
07/30/2003CN2563149Y Suspending biological carrier easy hainging film
07/30/2003CN2563148Y Fast division biological ball for waste water purifier
07/30/2003CN1432538A Method of cultivating algivorous insects to tackle blue-green alga pollution in water
07/30/2003CN1432537A Active sludge processing system
07/30/2003CN1116235C Process for removing amoniacal nitrogen from sewage of coking
07/30/2003CN1116097C Superfilter memberane type separator
07/29/2003US6599426 High dissolved oxygen mixer-digester method
07/29/2003US6599425 Bioremediation of nitrate contaminated groundwater
07/29/2003US6599424 Agricultural animal wastewater, aerobic bacteria, clarification
07/29/2003US6599423 High-efficiency processes for destruction of contaminants
07/29/2003CA2304935C Biofiltering device for treating wastewater
07/24/2003WO2003059825A1 Method for treating sludge and waste derived from wastewater treatment
07/24/2003WO2003059489A1 Filtration mat for water clarification device
07/24/2003WO2002094181A3 Gram-positive fatty acid degrader
07/24/2003US20030138675 Septic battery
07/24/2003US20030136735 Wastewater treatment with alkanes
07/24/2003US20030136734 Treatment of contaminated activated charcoal
1 ... 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 ... 465