Patents
Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
09/2001
09/26/2001EP1136558A1 Genetically modified plants and plant cells comprising heterologous heavy metal transport and complexation proteins
09/26/2001EP1136449A1 Waste water processing system
09/26/2001EP1136448A1 Apparatus for the aeration of water
09/26/2001EP1135340A1 Combined purification and resorption methods for use in artificial soils reactors
09/26/2001EP1135199A1 Slow sand filter for use with intermittently flowing water supply and method of use thereof
09/26/2001EP0772571B1 A reactor for use in water treatment with micro film carriers as well as a method for operating the reactor
09/26/2001CN2450216Y Low concentration organic sewage oxidation treating device
09/26/2001CN2450215Y Dynamic oxidation separator
09/26/2001CN2450208Y Location unimpeded gate for city underground pipeline type sewage treatment
09/26/2001CN1314314A Processing system for drain off water
09/20/2001WO2001068536A1 Method and device for effluent treatment
09/20/2001WO2001016035A3 A portable waste liquid treatment container
09/20/2001DE10010853A1 Sequentielle Abwasserkläranlage und Abwasserklärverfahren Sequential treatment plant and Abwasserklärverfahren
09/19/2001EP1134194A2 Process and device for retaining biomass in bioreactors
09/19/2001EP1134193A2 Device for water aeration
09/19/2001EP0956271B1 Device for intensive biological waste-water treatment
09/19/2001CN2448838Y Urban underground pipeline type sewage treatment unit
09/19/2001CN2448837Y Urban underground pipeline type sewage treating padding apparatus
09/19/2001CN2448836Y Biochemical aeration reactor
09/19/2001CN2448835Y Pipe shape environment protection padding
09/19/2001CN1313836A Method and installations for treating effluents in small communities
09/19/2001CN1313250A Dynamic aeration process for treating sewage with high efficiency and low energy consumption
09/18/2001US6290917 For sewage purifying treatment by improving the dissolving efficiency of oxygen.
09/18/2001US6290857 Method for oxygenation of waste water
09/18/2001US6290852 Method and apparatus for the purification and/or treatment of commercial and/or industrial waste waters
09/18/2001US6290851 Microorganisms-immobilized magnetic carriers, a process for producing the carriers and a method of treating wastewater
09/18/2001US6290850 Method for controlling aeration systems of biological tanks treating waste water
09/18/2001US6290849 Method for biological purification of waste water by the activated sludge method and apparatus for carrying out the method
09/15/2001CA2300719A1 Membrane supported biofilm process
09/13/2001WO2001066475A1 Apparatus and method for purifying wastewater
09/13/2001WO2001066474A2 Membrane module for gas transfer and membrane supported biofilm process
09/13/2001WO2001066473A1 Rotating disk type sewage treatment device
09/13/2001WO2001066275A2 Composite particles and methods of their use
09/13/2001WO1997008098A3 In situ thermally enhanced biodegradation of petroleum fuel hydrocarbons and halogenated organic solvents
09/13/2001US20010020751 Apparatus for aerating water
09/13/2001DE10011326A1 Vorrichtung zum Belüften von Wasser Apparatus for aerating water
09/13/2001DE10010109A1 Compact base filter reactor for sedimentation and biological purification of waste waters
09/13/2001DE10008449A1 Begasungseinrichtung Gassing
09/12/2001EP1132462A1 Bacteria strains having heavy oil degrading ability, mixtures thereof and nurturing composition therefore
09/12/2001EP1132348A1 Installation and process for purification of waste water
09/12/2001EP1132345A1 Biological installation and process for waste water purification in a biological installation
09/12/2001EP1131266A1 Wastewater treatment tank with influent gates and pre-react zone with an outwardly flared lower portion
09/12/2001EP0977713A4 Air charged backwashing bioclarifier
09/12/2001CN1312777A Method of liquifying microorganisms derived from biological waste water treatment processes
09/12/2001CN1312231A Comprehesive treatment method for organic kitchen garbage and domestic sewage
09/12/2001CN1312230A In-situ sewage treating techn for treating in sewage discharge port
09/12/2001CN1312229A Gas-scattering apparatus
09/11/2001US6287847 Biodegradation of metal cyanides
09/11/2001US6287846 Method and compositions for providing a chemical to a microorganism
09/11/2001US6287469 Circulation tank, filter, pump
09/11/2001US6287468 Mixture of tire powder, ethylene-vinyl acetate copolymer and activated carbon
09/11/2001US6287467 Submerged membrane cartridge
09/11/2001CA2204759C Activated sludge degassing process and device
09/10/2001CA2340339A1 Apparatus for aerating water
09/08/2001CA2300209A1 Membrane module for gas transfer
09/07/2001WO2001065621A1 Fuel cell power generation method and system
09/07/2001WO2001064590A1 Method and system for sustainable treatment of municipal and industrial wastewater
09/07/2001WO2001017660A3 System filter for pond water or the like
09/06/2001US20010019030 Mixing bacteria with a fatty substance and hydrocarbon oil to form an oleophilic suspension and applying to a free floating oil
09/06/2001DE10009887A1 On-site removal of nitrogen from dirty water using apparatus with one microbially-operated denitrifying deaeration vessels and two bacterially-operated nitrifying aeration vessels in each unit
09/06/2001DE10009251A1 Oxygenation of waste water treatment process linked by control system to sensor monitoring discharging suspended solids
09/05/2001EP1129996A1 Denitrifying composition for removing nitrate nitrogen and process for producing the same
09/05/2001EP1129768A2 Aeration device
09/05/2001EP1129037A1 Nitrification process
09/05/2001EP1128885A1 A device of three-chamber type for purifying liquid
09/05/2001EP1109748A4 Multistage facultative wastewater treatment system
09/05/2001CN1311760A Biological purification of water to any degree up to drinking water
09/05/2001CN1311162A Waste water treatment of tide gate river of coastal city
09/05/2001CN1311159A Under-water complex pollution treatment system of inland city
09/04/2001US6284523 Process for biodegradation of a xenobiotic
09/04/2001US6284521 Ensures up to a 50% reduction in polychlorinated biphenyl (pcb) concentration in environmental media, e.g. soil, water, and pcb-containing wastes of electrical and chemical industry; in situ; aerobic conditions
09/04/2001US6284514 For the clean-up of herbicide production sites and buildings, as well as ground water, surface water and soils surrounding said sites
09/04/2001US6284143 Microporous diffusion apparatus
09/04/2001US6284138 Agent introduced by use of an agent generator and a mixing device interposed in the piping of the infrastructure or mixed with the sewage flow either upstream or downstream of a pump at the pumping site
09/04/2001US6283459 Gas-liquid processing apparatus
09/04/2001US6283309 Device for purifying gases, such as air in particular, or liquids, such as water in particular
09/04/2001US6283063 Refreezable and resusable chewable pet toy and method of preparing and using the same
09/04/2001CA2220680C Novel method for the control of biodegradation
08/2001
08/30/2001WO2001062990A1 Method and bioreactor for enzymatic metal cation reduction in solution
08/30/2001WO2001062678A1 Wastewater treatment process
08/30/2001WO2001062677A1 Removal of sulfur compounds from wastewater
08/30/2001WO2001062676A1 Method for treating organic wastewater
08/30/2001WO2001062675A1 Method and device for the microbiological decomposition of harmful substances in fluids
08/30/2001WO2001062404A1 Green garbage treatment apparatus
08/30/2001US20010017281 Providing forced circulation of degradation means(bacterial culture or microorganisms) in the bottom region of the activation tank below the lamellae pack is used
08/30/2001CA2401371A1 Removal of sulfur compounds from wastewater
08/29/2001EP1127850A1 Removal of sulfur compounds from wastewater
08/29/2001EP1127849A1 Process and apparatus for purifying municipal or industrial waste waters
08/29/2001EP1127848A1 Integrated wastewater treatment apparatus
08/29/2001EP1127847A1 Process and apparatus for microbial degradation of pollutants in fluids
08/29/2001EP1127102A1 Method and apparatus for controlled composting and bioremediating
08/29/2001EP1098855A4 Wastewater treatment process
08/29/2001EP0996497A4 Device and process for liquid treatment
08/29/2001EP0981499B1 Method for reducing the level of hydrogen sulfide in wastewater systems
08/29/2001EP0902761B1 Clarification plant for water purification
08/29/2001CN2444945Y Conical microporous diaphragm aeration apparatus
08/29/2001CN2444944Y Rotary water drainage apparatus
08/29/2001CN2444943Y 污水处理装置 Sewage treatment plant
08/29/2001CN2444942Y Improved aeration biological filter chamber
08/29/2001CN1310692A Process for the treatment of waste water containing ammonia