| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
|---|
| 03/16/1994 | EP0587553A1 Device for introducing gas in liquids |
| 03/16/1994 | EP0586998A1 Process and device for the treatment of waste water containing organic matter, especially chlorinated organic compounds from the production of epichlorohydrine |
| 03/16/1994 | EP0586805A2 Filter for pond water |
| 03/16/1994 | EP0586407A1 Apparatus for the gasification of liquids. |
| 03/16/1994 | EP0448597B1 Method and apparatus for treating water |
| 03/16/1994 | EP0344295B1 Use of a process for treating the waste water from aquaculture installations by nitrification and oxygenation |
| 03/16/1994 | CN1023997C Deep treatment of waste water from printing and dyeing mill and related apparatus |
| 03/15/1994 | US5294340 Process for the biological treatment of waste water using microorganisms |
| 03/10/1994 | DE4303146C1 Domestic sewage treatment - has a reaction basin with a porous solid aeration body |
| 03/10/1994 | DE4301091C1 Utilisation of clarifier sludge for energy prodn. - by using sludge as fertiliser for growing sustainable cpds. which can be burnt to produce heat |
| 03/10/1994 | DE4229453A1 Water oxygenation appts. - has perforated and profiled plates for increasing air contact time with flowing water |
| 03/10/1994 | DE4229365A1 Bio-gas reactor for anaerobic waste water purificn. - treats grease- and oil-contg. water from abattoirs, meat processing plants, etc. |
| 03/10/1994 | DE4229355A1 Process and appts for the removal of chlorinated organic cpds from effluent - esp. from epichlorohydrin prodn |
| 03/10/1994 | DE4229174A1 Transportable trough reactor for biological purificn. appts. - for purifying contaminated liq., suspension or sludge, includes devices for mixing, nutrient salt supply, aeration and/or heating |
| 03/09/1994 | EP0586329A1 Fine-bubble diffuser, especially for water aeration |
| 03/09/1994 | EP0585702A1 Bioactivity control device for biological systems |
| 03/09/1994 | EP0585652A2 Bacterial strains for the reduction of mercury oswell as the processes for their production |
| 03/09/1994 | EP0585357A1 Amoebae/bacteria consortia and uses for degrading wastes and contaminants |
| 03/09/1994 | EP0585221A1 Anaerobic digestion process |
| 03/09/1994 | EP0485524B1 Absorbent materials and use thereof |
| 03/09/1994 | CN2158406Y Multi-function water purification equipment |
| 03/08/1994 | US5292456 Waste site reclamation with recovery of radionuclides and metals |
| 03/08/1994 | US5292431 Pressurized percolating filter of the type used for the regeneration of water in aquariums |
| 03/08/1994 | CA1327655C Chemical treatment for algae control in open water systems |
| 03/08/1994 | CA1327654C Treatment of water to remove gas vacuolate cyanobacteria |
| 03/08/1994 | CA1327652C High pressure oxygen-saturated water treatment apparatus |
| 03/08/1994 | CA1327650C Method and apparatus for the widespread, finely-bubbled aeration of liquids |
| 03/04/1994 | WO1993004759A1 Wastewater treatment process |
| 03/03/1994 | WO1994004254A1 Process and device for charging liquid media with gas |
| 03/03/1994 | DE4228168A1 Verbesserte Nährstoffgemische für die Bioremediation verschmutzter Böden und Gewässer Improved nutrient mixtures for the bioremediation of contaminated soils and waters |
| 03/02/1994 | EP0585036A1 Apparatus for producing ultra-pure water |
| 03/02/1994 | EP0432276B1 Method of concentrating and dehydrating slurried sludge |
| 03/02/1994 | CN1083143A Alkaline process paper-making black liquor treatment and comprehensive utilization method |
| 03/02/1994 | CN1083109A Process for preparing swamp Rhodopseudomonas preparation and use |
| 03/01/1994 | US5290487 Device for aeration of a liquid vessel |
| 03/01/1994 | US5290451 Method and apparatus for processing manure |
| 03/01/1994 | US5290450 Anaerobic digestion process for sewage sludge |
| 03/01/1994 | US5290435 Aerobic purification installation |
| 03/01/1994 | CA1327412C Waste water treatment system |
| 02/24/1994 | CA2104502A1 Bacterial strains for mercury reduction and process for their production |
| 02/23/1994 | EP0583932A1 Treatment for liquids |
| 02/23/1994 | EP0583658A1 A method for improving bottom and water quality in water areas and a set of agents used in the method |
| 02/23/1994 | EP0583509A1 Enhanced gas dissolution |
| 02/23/1994 | EP0583349A1 Biological nitrification/denitrification water treatment plant and method |
| 02/23/1994 | EP0273053B1 Sheet for forming twisted surface and production thereof |
| 02/23/1994 | CN2157189Y Improved biologic contact oxidizing bath |
| 02/23/1994 | CN2157188Y Shear blade for horizontal shaft rotary brush aerator |
| 02/22/1994 | US5288635 Attaching mixed culture of Moraxella to immobile support |
| 02/22/1994 | US5288407 Microbiological nitrification and denitrification of waste water with adjustable recycle stream |
| 02/22/1994 | US5288406 Aeration |
| 02/22/1994 | US5288405 Aerobic, anaerobic zones; organisms to remove wastes |
| 02/22/1994 | US5288400 Biological filtration system |
| 02/22/1994 | CA1327244C Mobile vortex shield |
| 02/18/1994 | CA2101670A1 Treatment of liquids |
| 02/17/1994 | WO1994003582A1 Cover structure for a fermentation container |
| 02/17/1994 | WO1994003403A1 Treatment of sludge |
| 02/17/1994 | WO1994003402A1 Process and device for the biological treatment of organically polluted waste water and organic waste |
| 02/17/1994 | DE4311981A1 Microbial cultures for degrading polycyclic aromatics - comprising two Pseudomonas strains, esp. for tar oil detoxification |
| 02/17/1994 | DE4303842A1 Removal of organic substances from surfaces or water - using coal-based adsorbent |
| 02/17/1994 | DE4231628C1 Nitrogen elimination purificn. process by ion exchange adsorption of ammonium and ions, and an appts. - by intensive airing and washing with water in a separate nitrification reactor unit |
| 02/16/1994 | CN2156184Y Deep aerator |
| 02/16/1994 | CN1023750C Fish basin of intensive fish culture and method for operating this fish basin |
| 02/15/1994 | US5286385 Simultaneous nitrification and denitrification |
| 02/10/1994 | DE4217491C1 Compact sewage treatment plant - comprising container with screen, pumps, aerators and two flotation devices, and second container aerobic reactor surrounded by anaerobic reactor |
| 02/09/1994 | EP0582539A1 Chemical pre-treatment and biological destruction of propylene carbonate waste effluent streams to reduce the biological oxygen demand thereof |
| 02/09/1994 | EP0582271A1 Apparatus and process for the treatment of liquids |
| 02/09/1994 | EP0582237A1 Process for treating oil-water emulsions, especially from vehicle washing installations |
| 02/09/1994 | CN2155369Y Device for oxidation of dung in round manure pits |
| 02/09/1994 | CN1023695C Swirl-aeration purifying water equipment |
| 02/08/1994 | US5284589 Process for the treatment of effluent |
| 02/08/1994 | US5284587 A solubilizing system comprising a matrix gel, a time-release gel, bacteria producing extracellular hydrolases, an solubilizing inhibitor, nutrients and a housing providing air and water |
| 02/08/1994 | CA1326917C Apparatus for treatment of liquids |
| 02/03/1994 | WO1994002421A1 Microbial mediated method for soil and water treatment |
| 02/02/1994 | EP0581710A1 Wash-water trough for washing filters in biological water treatment |
| 02/02/1994 | EP0581161A1 Aerator device |
| 02/02/1994 | EP0580755A1 Portable system for treating human waste |
| 02/02/1994 | CN2154859Y Multifunction aerobic organism fluidied bed |
| 02/01/1994 | US5282980 Method for treatment of waste water sludge |
| 02/01/1994 | CA2101665A1 Chute type filter washing device for biological treatment of water |
| 02/01/1994 | CA1326718C High yield air diffuser for tanks used in the aerobic treatment of waste waters |
| 01/27/1994 | DE4242517C1 Lacquering plant operating process - uses bio-reactor and membrane separator to regenerate circulated water |
| 01/27/1994 | DE4224259A1 Fluid purificn. appts. - having treatment reactor with controlled ozone supply |
| 01/27/1994 | DE4223970A1 Biologically cleaning of waste water - by removing biologically degradable material and using rotating basin driven by surface fans |
| 01/27/1994 | DE4223945A1 Accelerating microbiological purificn. of waste water - contg coolant lubricants by addn of phospholipid to water |
| 01/27/1994 | DE4223942A1 Aeration hose has radial expansion limits - between the joints linking the hose to the inner support pipe |
| 01/26/1994 | EP0579711A1 Method for removing sulphur compounds from water. |
| 01/26/1994 | EP0579630A1 Membranes with immobilized microorganisms thereon and/or therein, process for obtaining such membranes, reactor comprising said membranes and process involving the use of said membranes, in particular for the elimination of metals or the degradation of xenobiotic organic compounds |
| 01/26/1994 | EP0579603A1 Treatment of wastes |
| 01/26/1994 | EP0338056B1 Apparatus for prevention of the occurence or proliferation of microorganisms in water for industrial use |
| 01/25/1994 | US5281335 Treating raw wastes in multicompartment submersive reactor with anaerobic and anoxic and aerobic environments, the treatment including nitrification and denitrification, discharging |
| 01/25/1994 | US5281332 System for treating sewage or other fluids |
| 01/23/1994 | CA2100496A1 Mobile waste treatment apparatus |
| 01/20/1994 | WO1994001530A1 Process for modulating the concentration of dissolved gases in liquid media |
| 01/20/1994 | WO1994001367A1 A method of obtaining lead and organolead from contaminated media using metal accumulating plants |
| 01/20/1994 | WO1994001212A1 System, method and apparatus for diffusing gas bubbles into a body of water |
| 01/20/1994 | WO1994001210A1 A reactor |
| 01/20/1994 | DE4240062C1 Partitioned fixed bed reactor - for odour-free biological waste water treatment |
| 01/20/1994 | DE4237716C1 Verfahren zur biologischen Reinigung von mit organischen Kohlenstoffverbindungen und Stickstoffverbindungen verunreinigtes Abwasser A process for the biological purification of contaminated with organic carbon compounds and nitrogen compounds wastewater |
| 01/20/1994 | DE4225699C1 Biological waste water purificn. - in layered clarification plant having compressed air and external organic carbon surface |
| 01/20/1994 | DE4223612A1 Appts. for water treatment and for prodn. of mixt. soln. emulsion suspension - comprising vertical cylindrical mixing vessel with exponentially curved top and bottom sections and central and peripheral agitators in its base |