Patents
Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
11/1993
11/30/1993CA1324843C Process for purifying waste water
11/25/1993WO1993023340A1 Method and apparatus for dissolving a gas into and mixing the same with a liquid
11/25/1993WO1993023339A1 Wastewater treatment method and apparatus
11/25/1993WO1993023338A1 Purifying apparatus
11/25/1993WO1993023243A1 Corrugated sheet assembly
11/25/1993WO1993023087A1 Stabilization of biowastes
11/25/1993DE4228172C1 Verfahren und Vorrichtung zum Verteilen eines Gases in einer Flüssigkeit Method and apparatus for distributing a gas in a liquid
11/25/1993DE4216225A1 Disposing of waste from food prepn. - by mixing with water, degrading with active enzymes sepg. into solids and sugar soln. and thickening soln.
11/24/1993EP0570756A1 Method for oxidizing organic compounds in water or waste water
11/24/1993CN2147234Y Mixied stereo material filling device
11/24/1993CN2147039Y Side sedimentation type three-phase fluidized bed reactor
11/23/1993US5264349 Anaerobic conditions
11/23/1993US5264131 Forming a liquid membrane of oxygen permeable liquid on a support layer made of a hydrobic porus material, contacting one end of membrane with oxygen and other with aqueous liquor
11/23/1993US5264130 Sewage treatment
11/23/1993US5264129 Filter device
11/23/1993US5264128 Water purification process
11/23/1993US5264127 Floating aquatic plant water treatment system with sprayer system
11/23/1993US5264018 Use of metallic peroxides in biormediation
11/18/1993EP0569828A1 Anearobic plant for treating waste water, sewage and manure
11/18/1993EP0569555A1 Solid state culture of white rot fungi
11/18/1993EP0569372A1 Waste handling method.
11/17/1993CN2146479Y Air-float separator
11/16/1993US5262096 Bubbling
11/16/1993US5262093 Cowling for a rotary surface aerator used for the aeration of tanks intended for water treatment
11/16/1993US5262051 Apparatus for biological treatment of water and waste, of the attached-growth type
11/16/1993US5261783 Kinetic pump having a centerless impeller
11/16/1993US5261193 Tensioned membrane cladding system
11/16/1993CA1324449C Method for treating polluted material
11/15/1993CA2068677A1 Multimedia bioreactor and periodic washing method therefor
11/11/1993WO1993022418A1 Bioreactor system
11/11/1993WO1993022248A1 Recycling industrial waste water
11/11/1993WO1993022247A1 Biological degradation of methylene chloride
11/11/1993WO1993022246A1 Fluidized-bed fermenter
11/11/1993WO1993022245A1 Apparatus and process for removal of pollutants from waste water
11/11/1993WO1993022244A1 Cage-like biological contact cleaner device for waste water treatment
11/11/1993WO1993022240A2 Biogas reactor
11/11/1993DE4214896A1 Wirbelschichtfermenter Fluidized bed fermenter
11/11/1993CA2135161A1 Fluidized-bed fermenter
11/11/1993CA2134545A1 Bioreactor system
11/10/1993EP0569199A1 In situ biodegradation of groundwater contaminants
11/10/1993EP0568599A1 Method for avoiding pitch troubles by use of thermostable lipase.
11/10/1993EP0556315A4 Means and method for enhancing plant growth under field conditions
11/10/1993CN2145790Y Air-liquid integration pressure contact oxidation tower
11/10/1993CN1078215A Method for treatment of wastewater of molasses alcohol
11/09/1993US5259996 Low profile cascade aerator
11/09/1993US5259959 Anoxic ammonia oxidation
11/05/1993CA2095275A1 Situ biodegradation of groundwater contaminants
11/04/1993DE4213777A1 Floating water aeration device for low energy aeration of fish ponds, etc. - has air inlet tube with lower end giving restricted inflow to impeller for mixing air and water
11/03/1993EP0568346A1 Oxygen dissolving apparatus
11/03/1993CN2145189Y Anaerobic part fluidized bed
11/03/1993CN2145188Y Biological extender
11/03/1993CN2145187Y Bailing bucket biological turntable
11/03/1993CN2145186Y Biological revolving cage
11/03/1993CN1078014A Ground contamination remediation process and apparatus
11/02/1993US5258121 Closed loop multistage treatment of toilet wastes using aerobic and anaerobic stages
11/02/1993CA1323943C Process for the treatment of waste
10/1993
10/28/1993WO1993021348A1 Mixture of microorganisms, the use of the mixture in the biodegradation of hydrocarbons, and a method of applying the mixture
10/28/1993WO1993021287A1 Process for converting sludge into a fuel or a soil conditioner
10/28/1993WO1993021118A1 Turbo oxidation system (tos) for 'wet combustion' of cod-containing liquids and for cod-reduction by enzymes
10/28/1993WO1993020959A1 Method and device for bioremediation
10/28/1993WO1993020915A1 Continuous-belt separator/reactor and method
10/28/1993DE4213814A1 Mass exchange element useful for biological waste gas or waste water purificn. - consists of lattice of intersecting lattice bars through which liq. flows
10/28/1993DE4213474A1 Waste water processing - using two=stage biological cleaning with recirculating water and bacteria growth for water from cellulose ether prodn.
10/28/1993DE4213316A1 Fine bubbling device e.g. for waste water aeration - has flat elements joined by flexible spacers
10/28/1993DE4213015A1 Biogasreaktor Biogas reactor
10/28/1993CA2118004A1 Continuous-belt separator/reactor and method
10/28/1993CA2117751A1 Turbo oxidation system (tos) for "wet combusion" of cod-containing liquids and for cod-reduction by enzymes
10/27/1993EP0567405A1 Process, apparatus and plant for the treatment of fatty wastes and product of their valorization
10/27/1993EP0567102A2 Method of biologically decomposing phenol or furan compounds by microorganisms
10/27/1993CN1077697A Process for sewage disposal from wool dyeing and printing by electrolyzation-catalytic oxidation
10/27/1993CN1077696A A purifying method and apparatus for waste water of miscellaneous use
10/26/1993US5256380 Startup openings in a three-phase gaslift loop reactor
10/26/1993US5256309 Pumping a solution of dissolving lime and air
10/26/1993US5256298 Continuous-belt separator/reactor and method
10/26/1993US5256281 Baffle system for anaerobic sewage treatment pond
10/26/1993CA1323710C Intermittent aeration type biological treatment process and system therefor
10/21/1993DE4212479A1 Microorganism culture obtd. in mineral medium - contg. hexa:chloro-cyclohexane as sole carbon source, used to break down chlorinated cyclic cpds.
10/20/1993EP0566256A1 Process for treating oily sludge and organic wastes
10/20/1993EP0566056A1 Processes and apparatusses for biological treatment of organic substances, especially for anaerobic biological hydrolysis for the following biomethanation
10/20/1993EP0565534A1 Apparatus for treating a fluid with a treatment medium
10/20/1993EP0514453B1 Treatment of wastewater
10/20/1993EP0486578B1 Process for purifying and processing contaminated materials
10/20/1993EP0445203B1 Packing in or for a vessel
10/20/1993EP0404782B1 Process for culture of aquatic animals
10/20/1993EP0341280B1 Process for removing hazardous substances from water or air
10/19/1993US5254254 Biological method of treating wastewater in batch with porous biomass carrier
10/19/1993US5254253 Modular shipboard membrane bioreactor system for combined wastewater streams
10/19/1993US5254252 Ecological treatment system for flowing water
10/19/1993US5254246 Water reclamation system
10/19/1993US5254245 Multi-stage anaerobic packed column reactor with fixed-film column filter
10/19/1993US5254143 Diaphragm for gas-liquid contact, gas-liquid contact apparatus and process for producing liquid containing gas dissolved therein
10/14/1993WO1993019836A1 Method and apparatus for effecting gas-liquid contact
10/14/1993DE4212233A1 Cleaning of waste water using activated sludge method - is carried out in each of a number of storage modules which are operated opt. with respective time delays and enclose central equipment space
10/14/1993DE4211648A1 Flat-plate aerator esp. for waste water treatment tanks - aeration element is covered by tubular membrane clamped to end or head section of element, gas is introduced inside membrane via passage in head section
10/14/1993CA2337131A1 Method and apparatus for effecting gas-liquid contact
10/14/1993CA2337121A1 Method and apparatus for effecting gas-liquid contact
10/14/1993CA2092393A1 Process for treating oily sludge and organic wastes
10/13/1993EP0565176A2 Process for the treatment of organic waste
10/13/1993EP0564935A1 Sewage treatment plant
10/13/1993CN1077179A Alkaline straw pulp paper black liquid and middle section treatment of sewage technology thereof