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