| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/11/1998 | WO1998039254A1 Method of cleaning wastewater |
| 09/11/1998 | WO1998030505A3 Processing of sewage sludge into humus |
| 09/10/1998 | DE19726038A1 Support material for microbiological processes |
| 09/09/1998 | EP0863112A1 Method of operating a parallel flow multicell fixbedreactor |
| 09/09/1998 | EP0862636A1 Malathion carboxylesterase |
| 09/08/1998 | US5804435 Treating pseudomonas putida microorganism with ultraviolet irradiation or mutagen, culturing in presence of toxic organic solvent, selecting microorganism having specified characteristics, recovering |
| 09/08/1998 | US5804432 Method and apparatus for treating contaminated water |
| 09/08/1998 | US5804424 Process for the production of hydrogen using photosynthetic proteobacteria |
| 09/08/1998 | US5804105 Device for diffusing a first fluid into a second fluid |
| 09/08/1998 | US5804076 Method for treatment of waste water and/or exhaust gases containing flourine and surface active agents |
| 09/03/1998 | WO1998038135A1 Method and device for introducing oxygen into water or aqueous solutions |
| 09/03/1998 | DE19707883A1 In-situ bio-decontamination of soil or water e.g. on munitions sites |
| 09/02/1998 | EP0861887A2 Microbial processes using electrolyzed water |
| 09/02/1998 | EP0861808A2 Waste water treatment apparatus |
| 09/02/1998 | EP0735986B1 Wastewater treatment |
| 09/02/1998 | EP0715607B1 Device for purifying waste water or ground water |
| 09/02/1998 | CN2289788Y Unpowered biological septic-tank |
| 09/02/1998 | CN1191897A Novel microorganism resistive to hydrogen peroxide |
| 09/02/1998 | CN1039655C Manufacturing method of polyvinyl alcohol solid support with good air permeability and inclusion sludge microbe or biological catalyst |
| 09/01/1998 | US5800710 Purification and filtration |
| 09/01/1998 | US5800709 Biological aerated filters |
| 09/01/1998 | US5800705 Heat exchanger for aeration tank |
| 09/01/1998 | US5799440 Floating island with water-purifying effect, plant-cultivation bag and method for purifying water |
| 09/01/1998 | CA2079619C Waste treatment oxidation operations |
| 08/27/1998 | WO1998037027A1 Method for acquiring grain-shaped growth of a microorganism in a reactor |
| 08/27/1998 | WO1998037026A1 Device for carrying out a method for cleaning waste-water |
| 08/27/1998 | DE19734759C1 Waste water treatment and assembly |
| 08/27/1998 | DE19707425A1 Verfahren und Vorrichtung zum Eintrag von Sauerstoff in Wasser oder wässrigen Lösungen Method and apparatus for entry of oxygen in water or aqueous solutions |
| 08/27/1998 | DE19707404A1 Waste water treatment process removes nutrient from the water by micro-biological treatment |
| 08/26/1998 | EP0859747A1 Process for the aerobic biological break-down of substances having low water-solubility, and a micro-organism of the strain ihi-91 |
| 08/26/1998 | EP0765293B1 Biological purification device and a method of purifying effluent using said device |
| 08/26/1998 | CN1191073A Dihaloformaldoxime carbamates as antimicrobial agents |
| 08/25/1998 | US5798253 Computer controlling the withdrawing ferment biomass |
| 08/25/1998 | US5798044 Method for sewage treatment |
| 08/25/1998 | US5798043 Control of anaerobic wastewater treatment |
| 08/20/1998 | WO1998035768A1 Sequential biological/chemical/biological treatment of organic waste |
| 08/20/1998 | DE19737926C1 Treatment of waste water |
| 08/20/1998 | CA2198141A1 Wastewater treatment unit and method for treating wastewater |
| 08/19/1998 | EP0858357A1 Methods for decomposing quinolones and naphthyridones |
| 08/19/1998 | CN2288176Y Composite filling supporter |
| 08/18/1998 | US5795481 Water treatment and purification with biological filters |
| 08/18/1998 | US5795480 Method and system for the treatment of livestock wastewater |
| 08/18/1998 | CA2097716C Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
| 08/18/1998 | CA2038523C Sludge transfer systems and methods |
| 08/13/1998 | WO1998034880A1 Integrated wastewater treatment system with induced sludge velocity |
| 08/13/1998 | WO1998034879A1 Modular water treatment plant and method for operating same |
| 08/13/1998 | WO1998034878A1 Bioreactor control |
| 08/13/1998 | WO1998034740A1 Processes for purifying substances polluted with organohalogen compounds |
| 08/13/1998 | DE19704897A1 Waste water aeration frame assembly hinged to side-frame and hooked to winch |
| 08/12/1998 | EP0857779A1 Process for the biodegradation of aromatic compounds and synthesis of pigments and colorants, alcaloids and polymers, with the use of the recombinant strain escherichia coli p260 |
| 08/12/1998 | EP0857698A2 Activated sludge system for the purification of waste water from civil building outlets |
| 08/12/1998 | EP0857697A2 Process for the biological purificaiton of oil-loaded waste water |
| 08/12/1998 | EP0857696A2 A system for treating sewage-water and a method for treating sewage-water using the same |
| 08/12/1998 | EP0710217A4 Method of aeration of liquids |
| 08/12/1998 | CN1190104A Polyvinyl alcohol hydrogel and process for producing the same |
| 08/11/1998 | US5792650 Method for treating waste water |
| 08/11/1998 | US5792355 Process for treating waste water |
| 08/11/1998 | CA2145503C Floating media hourglass biofilter |
| 08/06/1998 | WO1998033745A1 Process, using ammonia rich water for the selection and enrichment of nitrifying micro-organisms for nitrification of wastewater |
| 08/06/1998 | DE19807406A1 Improved bio-active composite for waste water clarification |
| 08/06/1998 | DE19749975A1 Waste water treatment process and assembly for remote areas |
| 08/06/1998 | DE19717748A1 Small-scale waste water treatment settlement basin pump |
| 08/06/1998 | DE19705102A1 Suspension of calcium carbonate as finely divided entrained crystals |
| 08/05/1998 | EP0856345A1 Assembly for degassing ground and/or waste water |
| 08/05/1998 | CN1189811A Novel method for the control of biodegradation |
| 08/04/1998 | US5789579 Acidic polysaccharide |
| 08/04/1998 | US5789239 Composition and process for the avoidance of slime formation and/or for the removal of biofilm in water-bearing systems |
| 08/04/1998 | US5789236 Process of using sulfide-oxidizing bacteria |
| 08/04/1998 | US5788842 Fluidized beds |
| 08/04/1998 | US5788841 Consumption of sewage with microorganisms; monitoring oxygen demand; reducing hydrogen sulfide and methane gas content |
| 08/04/1998 | US5788838 Ultrapure water production system having pretreatment system for performing both anaerobic and aerobic organism treatments |
| 08/04/1998 | US5788836 Biofilm filter reactor |
| 07/30/1998 | WO1998032703A1 Device for intensive biological waste-water treatment |
| 07/30/1998 | WO1998032522A1 Method for recuperating vent gas coming from an ozonization reactor |
| 07/30/1998 | DE19753326A1 Waste water treatment plant comprising activated sludge tank |
| 07/30/1998 | DE19702951A1 Method controlling cessation of denitrification phase on waste water treatment plant |
| 07/30/1998 | DE19702712A1 Continuous, mobile, small-scale sewage purification and composting unit |
| 07/29/1998 | EP0854844A1 Biological method of treating sewage containing high concentrations of sludge |
| 07/29/1998 | EP0854843A1 Controlling wastewater treatment by monitoring oxygen utilisation rates |
| 07/29/1998 | EP0728122A4 System and method for treatment of polluted water |
| 07/29/1998 | EP0719239A4 Mixed liquor wasting system and method |
| 07/29/1998 | EP0667837B1 A purification system with a lamella separator |
| 07/29/1998 | CN1188745A Polyoxy activation aeration oxygen replenishing device |
| 07/28/1998 | US5785854 Water treatment with aeration and bacterial digestion of wastes |
| 07/28/1998 | US5785853 Method for accelerating revival of environment |
| 07/23/1998 | WO1998031453A1 Improvded gas-liquid vortex mixer |
| 07/22/1998 | EP0853595A1 Method and device for controlling a device for purifying waste water |
| 07/22/1998 | EP0853594A1 Submersible mixing impeller |
| 07/22/1998 | EP0675857B1 Process for biochemical oxidation of ultra-toxic wastewater in a packed bed bioreactor |
| 07/22/1998 | EP0643676B1 Biological and chemical single step purification of discharged water |
| 07/22/1998 | EP0624202B1 Method to produce single cell oil containing gamma-linolenic acid |
| 07/22/1998 | EP0560981B1 System for treating organic wastes and waste water |
| 07/22/1998 | CN1188463A Process and device for treatment of water from biodegradeable process |
| 07/22/1998 | CN1188462A Method of aerobically treating waste water and treatment tank |
| 07/22/1998 | CN1188150A Microbial fixed carrier for fluidized bed |
| 07/22/1998 | CN1188082A Oxygen-gathering activated aerator |
| 07/22/1998 | CN1188080A Method for municipal sewage treatment by using biological adsorption and biological membrane filtering |
| 07/22/1998 | CN1188079A Blowing device for sewage aerobic treatment trough and sewage aerobic treatment trough |
| 07/21/1998 | US5783537 Drain cleaner |
| 07/21/1998 | US5783267 Articles of microorganism-laden glass and method of manufacturing the same |