Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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07/07/1994 | WO1994015019A1 Method of disposing of excess sludge |
07/07/1994 | WO1994014712A1 Process for biochemical oxidation of ultra-toxic wastewater in a packed bed bioreactor |
07/07/1994 | DE4244570A1 Pre-clarification tank, also for denitrification or phosphorus elimination |
07/07/1994 | CA2152618A1 Method of disposing of excess sludge |
07/06/1994 | EP0605308A1 Composition containing a surfactant and glycolipids for decontaminating a polluted medium |
07/06/1994 | EP0604708A1 Fermentation method for the fast production of methane |
07/06/1994 | EP0604588A1 Waste-water treatment system |
07/06/1994 | EP0604514A1 Treatment of aqueous media containing organic material |
07/06/1994 | CN2170946Y Organic matter waste water processing equipment |
07/06/1994 | CN1088893A Centre apparatus for culturing photosynthetic bacteria to treat organic waste water |
07/05/1994 | US5326703 Tetrachloroethylene, bacteria |
07/05/1994 | US5326479 Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal |
07/05/1994 | US5326477 Enzymatic |
07/05/1994 | US5326475 Method for aerated biofiltration |
07/05/1994 | US5326468 Nozzles and throats for water treatment |
07/05/1994 | US5326459 Wastewater treatment apparatus |
07/05/1994 | EP0620756A4 Gas particle formation. |
07/01/1994 | CA2112638A1 Composition containing a surfactant and glycolipides and process for decontaminating a porous medium contaminated by hydrocarbons |
06/30/1994 | DE4309546A1 Transportable continuous sewage treatment |
06/29/1994 | EP0603990A1 Inorganic supports for bacterie and microorganisms useful in the biotreatment of aqueous waste streams |
06/29/1994 | EP0603989A2 Zeolite support for bacteria and microorganisms useful in the biotreatment of aqueous waste streams |
06/29/1994 | EP0603736A1 Process for treating wash and cleaning water especially from carwash plants and filling stations |
06/29/1994 | EP0603272A1 Apparatus for monitoring liquids |
06/29/1994 | EP0527959A4 Biological system for degrading nitroaromatics in water and soils |
06/29/1994 | CN2170301Y Filter for floating living things |
06/29/1994 | CN1088615A Process for intensification of fermentations |
06/29/1994 | CN1025181C Composite biological fluidized-bed reactor for treatment of starch wastewater |
06/28/1994 | US5324432 Treatment of process waters to destroy filamentous bacteria |
06/28/1994 | US5324431 Process for treating suspended substances in liquor |
06/28/1994 | CA1330461C Aerator for industrial and domestic waste waters |
06/28/1994 | CA1330460C Process for treating organic waste water |
06/28/1994 | CA1330459C Filling material for percolating filters for the treatment of liquids and process for producing and assembling it |
06/28/1994 | CA1330457C Method and installation for the break-down and recycling of solid urban waste by anaerobic fermentation |
06/23/1994 | WO1994013782A1 Ionic binding of microbial biomass |
06/23/1994 | WO1994013591A1 Process for treating waste water |
06/23/1994 | WO1994013590A1 An effluent treatment system |
06/23/1994 | WO1994013394A1 Method for producing particles of a first fluid in a second fluid, said fluids being non-miscible, and device therefor |
06/23/1994 | DE4340792A1 Water pipe aeration system |
06/23/1994 | DE4305511C1 Biological mechanical waste water and sewage cleaner |
06/23/1994 | DE4243627A1 Open pored mineral bulk material carrying immobilised microorganisms |
06/23/1994 | DE4242629A1 Well water cleaning |
06/23/1994 | DE4242520A1 Soiled brine cleaning and reprocessing for food industry |
06/23/1994 | CA2129996A1 Ionic binding of microbial biomass |
06/22/1994 | CN1088185A Method and apparatus of organic waste water treatment and biological hydrogen production |
06/21/1994 | US5322621 Equipment for treating sewage by biological oxidation |
06/16/1994 | DE4341782A1 Sewage treatment and gas prodn. plant - has floating elements has plastics sandwich structure walls with ballast-fillable chambers |
06/16/1994 | DE4242273A1 Plug flow microbiological treatment unit for waste water - comprising a number of vertically arranged series connected tubular contactors |
06/16/1994 | DE4241299A1 Liq. treatment to form fine suspension or emulsion - e.g. in treatment of contaminated soil slurry or waste water |
06/15/1994 | EP0601905A1 Process for the removal of species containing metallic ions from effluents |
06/15/1994 | EP0601551A1 Process and apparatus for waste water treatment |
06/15/1994 | EP0600989A1 Process for removal of organic pollutants from wastewater |
06/15/1994 | EP0467969B1 Process for removal of organic pollutants from waste water |
06/15/1994 | EP0439610B1 Gas-containing settling tank |
06/15/1994 | CN2168862Y Active carbon and sponge filter |
06/15/1994 | CN1087878A Method for removing radioactivity and heavy metal from water |
06/14/1994 | US5320663 Method of obtaining lead and organolead from contaminated media using metal accumulating plants |
06/14/1994 | CA1330240C Multiple air layer waste water processing system |
06/14/1994 | CA1330239C Process for the disinfection of sewage sludge |
06/10/1994 | CA2110471A1 Process for the removal of species containing metallic ions from effluents |
06/09/1994 | WO1994012619A1 Enhancement of enzyme reactions |
06/09/1994 | DE4315312C1 Solid bed reactor - has eddy chamber for vertical flow of carrier medium fed in a stream |
06/09/1994 | DE4240300A1 Aerator esp. for clarification tank - has covered aerating bodies mounted in rigid support profiles |
06/09/1994 | CA2150564A1 Enhancement of enzyme reactions |
06/08/1994 | EP0585221A4 Anaerobic digestion process |
06/08/1994 | CN1087680A Manufacturing method of polyvinyl alcohol solid support with good air permeability and inclusion sludge microbe or biological catalyst |
06/08/1994 | CN1087609A A purification system and a lamella separator for sedimentation of particles |
06/08/1994 | CN1087608A Method and apparatus for purifacation of waste water |
06/07/1994 | US5318909 Measuring/calculating device for determining the amount of carbon dioxide in outflowing gas from reactors |
06/07/1994 | US5318699 Denitrification of septic tank effluent |
06/07/1994 | US5318698 Arrangement for cleaning contaminated ground water |
06/07/1994 | US5318045 Magnetically modified microbial metabolism |
06/01/1994 | EP0599711A1 Apparatus and process for the purification of a liquid effluent loaded with pollutants |
06/01/1994 | EP0461166B1 A method for controlling and/or monitoring biological processes |
06/01/1994 | DE4240064A1 Waste water cleaning process and plant - by holding water in solid bed reactor with air flow, passing through adsorption tank, adding precipitant and sepg. pollutants by flotation and filtration |
06/01/1994 | DE4239796A1 Stimulation of biological, esp. microbiological processes - by irradiation with light, esp. laser light applied briefly at intervals, useful in the prodn. of fermented milk prods. |
06/01/1994 | CN2167088Y Sewage purification equipment |
06/01/1994 | CN1087324A Biologiccal phosphorus removal from waste water |
06/01/1994 | CN1024762C Ventilating system for liquid storage pool |
05/31/1994 | US5316945 For cultivating adhering cells |
05/31/1994 | US5316940 Constitutive soluble methane monooxygenase mutants of methanotrophic bacteria such as Methylosinus trichosporium A.T.C.C. 55314 |
05/31/1994 | US5316832 Biodegradable sheet for culturing sewage denitrifiers |
05/31/1994 | US5316682 Gas micronizer and purification system and related methods |
05/31/1994 | US5316671 Submersible aeration train and aeration apparatus for biological purification of sewage |
05/31/1994 | US5316668 Wastewater treatment plant and apparatus |
05/31/1994 | CA1329958C Process for removing nitrogen compounds from raw water |
05/31/1994 | CA1329957C Process for removing metal contaminants from liquids and slurries |
05/26/1994 | WO1994011422A1 Process for the production of filler-modified polyurethane foam carriers for bio-conversion processes |
05/26/1994 | WO1994011315A1 Metal accumulation |
05/26/1994 | WO1994011314A1 Biological method for purifying waste water contaminated with organic carbon and nitrogen compounds |
05/26/1994 | WO1994011313A1 Biological phosphorus removal from waste water |
05/26/1994 | WO1994011312A1 A purification system and a lamella separator for sedimentation of particles |
05/26/1994 | WO1994011311A1 A purification system with filter for separation of activated sludge and treated water in a process tank |
05/26/1994 | WO1994011094A1 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
05/26/1994 | WO1994010833A1 Water quality control in fish ponds |
05/26/1994 | DE4328569A1 Neutralisation of toxic materials - including using a number of chambers and peripheral systems for electro catalytic processing and recovery of material |
05/26/1994 | DE4238912A1 Bioactive rotating equipment for water sewage treatment - comprises rotating cage with circumferential tubes sepd. into chambers by plugs and having openings for air inlet and fluid exchange |
05/26/1994 | CA2149638A1 Water quality control in fish ponds |
05/25/1994 | CN2166126Y Deironing & Demanganesing water purifier |
05/25/1994 | CN2166125Y Air diffuser for sewage treatment |
05/25/1994 | CN1024651C Method for treating industrial waste water by powdered coal ash sorption |