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)
11/2002
11/21/2002US20020170857 Denitrification system for nitrified wastewater or nitrified water
11/21/2002DE10122471A1 Combined waste-water treatment plant and heat pump, converts heat in waste-water to higher temperature
11/21/2002DE10103344C1 Decontamination of soil and water contaminated with nitroaromatic, nitramine, triazine and/or aliphatic nitrate ester compounds under autochthonic, aerobic conditions is carried out in presence of molybdenum (compound)
11/21/2002DE10081213C1 Cleaner, especially for cleaning drain pipe for greasy waste water by adding nitrogen compounds to bacteria that degrade and/or emulsify grease contains urea, derivative and/or salt and/or magnesium sulfate
11/21/2002CA2447452A1 Method of separating suspension, in particular for waste water treatment, and an apparatus for performing the same
11/20/2002EP1258460A2 Method and apparatus for biodegradation of oxygenates
11/20/2002EP1257505A1 Removal of sulfur compounds from wastewater
11/20/2002EP1257504A1 Method and device for the microbiological decomposition of harmful substances in fluids
11/20/2002EP1102721B1 Method and device for separating biomass from water
11/20/2002CN2521217Y Sewage digesting pool stirrer
11/20/2002CN2521207Y Internal circulating biological active carbon water treatment apparatus
11/20/2002CN1380964A Torsion generator
11/20/2002CN1380262A Method for treating waste water produced in salad oil production and its equipment
11/20/2002CN1380261A Ecological food chain control method of flea-like zooplankton bred in water source of drinking water
11/20/2002CN1380260A Method for treating ammonia nitrogen waste water produced in the course of chemical fertilizer production
11/20/2002CN1380259A High-efficiency treatment method of chroma and organics, nitrogen and phosphorus by adopting anaerobic and aerobic procedures in ciliary biological membrane method
11/20/2002CN1380256A Method for preventing area-source pollution in the projects for diverting water from the south to the north and its structure system
11/20/2002CN1380137A Spherical porous light haydite for treating waste water and its production method
11/20/2002CN1380126A Parallel vertical sewage filtering device
11/20/2002CN1094471C High concentration sewage treatment device
11/20/2002CN1094470C Microorganism-immobilized magnetic carriers, and process for producing carriers
11/19/2002US6482322 Apparatus and method for treating sewage in cold climates
11/19/2002CA2085374C Continuous rbcod measurement
11/14/2002WO2002090270A1 Bioreactor used for the oxidation of fe(ii) to fe(iii)
11/14/2002WO2002090269A1 Biological treatment reactor in a purification plant
11/14/2002WO2002090268A1 Organoboron waste stream treatment using hydrogen peroxide
11/14/2002WO2002089957A1 Apparatus and method for the treatment of waste
11/14/2002US20020166819 System and method for separating components of liquid manure
11/14/2002US20020166812 Sewage treatment system
11/14/2002DE19937876C2 Verfahren zur biologischen Umsetzung von organischen Stoffen zu Methangas Process for the biological conversion of organic matter to methane gas
11/13/2002EP1255698A1 Water treatment unit
11/13/2002EP1255436A1 An apparatus for housing a suspended medium
11/13/2002EP1070022B1 A device for the treatment of water
11/13/2002EP1019328B1 Method for controlling and managing the biomass store of biological installations treating waste water
11/13/2002CN2520332Y Sewage purifier
11/13/2002CN1379739A Apparatus for processing fluids
11/13/2002CN1379735A Waste treatment process
11/13/2002CN1378982A Process for preparing microbial carrier used for treating sewage
11/12/2002US6478964 Floating fine-bubble aeration system
11/12/2002US6478963 Method and device for anaerobic purification of waste water using the UASB method
11/12/2002CA2259062C Method of distributing a fluid in the fluid bed of a fluid bed reactor
11/07/2002WO2002088034A1 Disintegration of anaerobically digested sewage sludge
11/07/2002WO2002088033A1 Method and device for reducing volume of excess sludge
11/07/2002WO2002088032A1 Treatment of water
11/07/2002WO2002044094B1 Process for enhancing the efficiency of wastewaster purification and decreasing the demand of reagent
11/07/2002US20020166149 Sustained totipotent regenerable tissue culture of Arundo donax (Giant Reed) and totipotent tissue and plants produced therefrom
11/07/2002US20020162795 Methods and apparatus for biological treatment of waste waters
11/07/2002US20020162794 Chemical additive, which aids anaerobic digestion and municipal wastewater treatment
11/07/2002DE10123152A1 Biological sewage processing plant, comprises a bioreactor, with an eddied carrier for micro-organisms and a trap to retain the carrier particles on water take-off
11/07/2002DE10120111A1 Delivery of oxygen into the depths of water, and other liquids, uses a free stream of a gas-rich fluid passed into the lower levels
11/06/2002EP1254876A2 Method and device for processing liquid manure
11/06/2002EP1254865A1 Disintegration of Anaerobically digested sewage sludge
11/06/2002EP0767632B1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof
11/06/2002CN1378611A Method for minimising new water use in water circulation system of a treatment plant
11/06/2002CN1377835A Sewage treatment device
11/06/2002CN1093840C Apparatus and method for purifying polluted water
11/05/2002US6475395 Liquid treatment process with in-plant pressure monitoring of submerged diffusers
11/05/2002US6475387 Microbiological method for eliminating a nitroaromatic compound
11/05/2002US6475382 Treatment unit for treating a fluid and method thereof
11/05/2002US6475381 Device of three-chamber type for purifying liquid
11/05/2002US6474627 Gas dissolving apparatus and method
10/2002
10/31/2002WO2002085801A1 Periphyton filtration pre- and post-treatment system and method
10/31/2002WO2002085800A1 Reactor for treatment of sewage water by activated sludge
10/31/2002WO2002085799A1 Device for stirring and aerating a liquid in a treatment vessel
10/31/2002WO2002085798A1 Process and plant of the ubr formation for wastewater treatment
10/31/2002WO2002085797A2 Method and device for the treatment of fluids in particular for effluent purification
10/31/2002WO2002085791A2 Pcr-based monitoring in wastewater biotreatment systems
10/31/2002WO2002085503A1 System for vertically aerating and/or mixing liquids
10/31/2002WO2002085502A1 Device for stirring and aerating a liquid in a treatment vessel
10/31/2002US20020159884 Torsion generator
10/31/2002US20020158014 Metal containing waste water treatment method and metal containing waste water treatment equipment
10/31/2002US20020158013 High dissolved oxygen mixer-digester method
10/31/2002US20020158012 Using an immobilized cell packed bed (ICPB) bioreactor, and at least one membrane oxygenation module attached to an external recirculation line; oxidation, nitrification
10/31/2002US20020158011 Wastewater treatment apparatus and method for recycling material for wastewater treatment
10/31/2002US20020158009 An acid consuming step, a volatile acid generating step and further step of evacuating the volatile acid, transferring the volatile acid to acid consuming step; control of pH and alkalinity-acidity in acid-base, hydrolysis, redox system
10/31/2002DE10120421A1 Efficiency in the use of polycaprolactone for removal of inorganic nitrates from biological holding waters, e.g. in aquariums, is directly related to the grain size of the gravel filter material
10/31/2002DE10119013A1 Aeration rotor for waste- and potable waters, comprises holder with circumferentially-distributed edge penetrations and plate projections passing through them
10/31/2002CA2444316A1 Pcr-based monitoring in wastewater biotreatment systems
10/30/2002EP1252109A2 Water purification process and purification plant
10/30/2002EP1252107A1 Method for treating bacterial effluents containing at least a gordonia terrae cip i-2194 ether
10/30/2002EP0851844B1 Process for purifying waste water
10/30/2002EP0830317B1 Effluent treatment system
10/30/2002EP0720590B1 Rotating biological filter system
10/30/2002CN1093427C Activated sludge degassing process and device
10/29/2002US6472191 Introducing into a host microorganism a recombinant dna which comprises a vector which can replicate in host microorganism and dna fragment ligated to a vecto, form a transformant which produces a toluene monooxygenase encoded by dna
10/29/2002US6471898 Method for reducing moisture content
10/29/2002US6471864 Adsorbent biocatalyst porous beads
10/29/2002CA2073758C Biological disposal of oxalates
10/25/2002EP1183093A4 Counterbalanced dual submarine-type liquid mixer pairs
10/24/2002WO2002083580A1 Wastewater treatment plant and method for constructing same
10/24/2002WO2002083577A2 Cultivation of bacteria in wastewater treatment
10/24/2002WO2002083576A1 A process for biochemical treatment of waste water using nano materials
10/24/2002WO2002083575A1 Method for adding salt water to aqueous compositions before or during oxidation treatment
10/24/2002WO2002082916A1 Cheese-like dairy products and process for producing the same
10/24/2002WO2002082893A1 Aquaculture system
10/24/2002US20020155584 Heated support, method for manufacturing the same and method for environment remediation therewith
10/24/2002US20020153313 For use in filtering membranes immersed in a liquid to be filtered
10/24/2002US20020153307 Mixing sludge with an acidic leaching solution to acidify and to dissolve heavy metals and to destroy the majority of the pathogenic microorganisms, without dissolving fertilizing elements; solid-liquid separation; neutralizing; recovering
10/24/2002US20020153306 Excavating a volume of soil to expose the pipe, removing at least a section of pipe, housing a solids settling and retention basin in excavated volume, connecting an upstream pipe to basin for effecting wastewater flow into basin
10/24/2002US20020153305 Wastewater management system
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