Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 1 - Treatment of water, waste water, or sewage
Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
12/1989
12/13/1989EP0346095A1 Method for purification of water
12/13/1989EP0345822A2 Preparation of catalytic resins for the catalytic reduction of oxygen in an aqueous medium
12/13/1989EP0345381A2 Liquid filter
12/13/1989EP0118428B1 An improved method and apparatus for recycling energy in counterflow heat exchange and distillation
12/13/1989CN2049224U Multifunction iron deoxygenating device for water supply of boiler
12/13/1989CN2049223U Hygienic drinking water container
12/13/1989CN1037884A Method for processing industrial waste liquors with magnesium sulfate-lime cream coagulating deposition
12/13/1989CN1037848A Metallic ion adsorbent and method for adsorbing metallic ion with it
12/12/1989US4886915 Biocidal water treatment
12/12/1989US4886661 Diorganopolysiloxane dosage forms for the controlled release of iodine values
12/12/1989US4886607 Apparatus for filtering, retaining and disposal of waste water accumulated on a boat
12/12/1989US4886606 Using crosslinked vinylbenzyl using crosslinked vinylbenzyl chloride polymer
12/12/1989US4886603 Method and apparatus for water decontamination
12/12/1989US4886593 Device for destroying bacteria
12/07/1989DE3818624A1 Clarifying thickener, and process operating therewith
12/07/1989DE3818096A1 Binder for liquids and floating barrier employing said binder
12/06/1989EP0345236A2 Desalination with the aid of solar energy
12/06/1989EP0344876A1 Liquid evaporator
12/05/1989US4885168 Method for the removal of nucleic acids and/or endotoxin
12/05/1989US4885141 Container covers of water soluble glasses give sustained release of chemicals; for radiators, hot water systems
12/05/1989US4885093 Treatment with activated sludge, first under anaerobic conditions, then under aerobic conditions; settling
12/05/1989US4885081 Drinking water delivery system with purity indicator
12/05/1989US4885016 Accurate control of reflus ratio; recycling
12/05/1989CA1263770A1 Dewatering solids suspensions
12/05/1989CA1263769A1 Water treatment method and apparatus
11/1989
11/30/1989WO1989011455A1 Process and device for conditioning sludges which are difficult to de-water
11/30/1989WO1989011454A1 Method for treatment of water and device for application of method
11/30/1989WO1989011453A1 Method and electrolyzer for softening water
11/30/1989WO1989011452A1 Electrolizer for cleaning liquid media
11/30/1989WO1989011324A1 Device for separating ferromagnetic materials from fluid media
11/30/1989DE3916310A1 Anfeuchtungsloesung mit antimikrobiellem wirkstoff Fountain solution with antimicrobial drug
11/30/1989DE3824289A1 Verfahren und vorrichtung zur konditionierung schwer entwaesserbarer schlaemme Method and apparatus for conditioning hard dewatered sludges
11/29/1989EP0344064A1 Product for treating swimming pool water
11/29/1989EP0343998A1 Water treatment systems
11/29/1989EP0343531A1 Evaporator with an apparatus for controlling solid particle flow
11/29/1989EP0343162A1 Device for sterilization of liquid with ultraviolet light
11/29/1989CN2048472U Hight efficient water purifier
11/29/1989CN1037493A Method for removing harmful red mud deposited during production of aluminium oxide
11/29/1989CN1037465A Filtering material for removing fluorine and its application method
11/29/1989CN1037464A Filter cover for purification insert in water treatment device with hollow tube
11/29/1989CN1037463A Process for separating substances from liquid and device for carrying out process
11/28/1989US4883823 Preparing methanol
11/28/1989US4883601 Process for purifying an aqueous, hydrogen sulfide-scrubbing solution
11/28/1989US4883600 Adding nitrogen compound
11/28/1989US4883596 Carbonized polymer beads, ultrapure water, removing endotoxins
11/28/1989US4883591 Multi-pass fluid treating device
11/28/1989US4883589 System for removing contaminants from ground water
11/28/1989US4883587 Polyurethane iodine sponge swimming pool filter
11/28/1989US4883520 Separation, concentration, by flotation of ice cubes, upward through column
11/23/1989EP0343122A1 Electrolytic cell
11/23/1989EP0343092A1 Method and plant for bathing water disinfection by electrochemical in situ production of sodium hypochlorite
11/23/1989EP0342876A2 Waste treatment
11/23/1989EP0342339A2 Paint de-tackifier and sedimentation agent
11/23/1989EP0189401B1 Electrostatic water treatment and electrode therefor
11/23/1989DE3816041A1 Process for separating off organic compounds from water
11/22/1989CN2048065U Magnetizing, purifying and mineralizing water treater
11/22/1989CN2047986U Water filtering cock improved on its structure
11/22/1989CN2047985U Hydraulic power sparging vacuum deoxidizing device
11/22/1989CN1037320A Technology for processing waste ionic colloid liquor
11/21/1989US4882088 Slurry for centrifugal classification of colloidal particles
11/21/1989US4882072 Method and apparatus for treating bodies of water
11/21/1989US4882071 Method and apparatus for the in situ decontamination of underground water with the aid of solar energy
11/21/1989US4882070 Waste water clarification
11/21/1989US4882069 Flocculation by addition of aluminum or iron salts as coagulants and polyelectrolytes
11/21/1989US4882067 Process for the chemical bonding of heavy metals from sludge in the silicate structure of clays and shales and the manufacture of building and construction materials therewith
11/21/1989US4882066 Complexing metals with thin film of chitin which is dispersed on porous solid substrate
11/21/1989US4882064 Method of removing impurities from hard waters or waters with significant calcium/magnesium concentrations
11/21/1989US4882061 Filter apparatus
11/21/1989US4882056 Cartridges
11/21/1989US4882046 Multi-chamber septic tank assembly
11/21/1989US4882045 Dispersal apparatus with rotation valving
11/21/1989US4882018 Efficiency
11/21/1989US4882012 Water distiller
11/21/1989US4882009 Apparatus for concentrating brine waters or dewatering brines generated in well drilling operation
11/21/1989CA1263099A1 Twin hydrocyclone
11/21/1989CA1263095A1 Method and apparatus for disinfecting water by hypochlorite produced by electrochemically converting salt
11/16/1989WO1989010899A1 Encased pool chemical tablet with domed ends
11/16/1989WO1989010898A1 Method of sewage treatment
11/16/1989WO1989010803A1 Process for surface and fluid cleaning
11/16/1989WO1989010696A1 Biocidal composition
11/15/1989EP0342169A2 Electrolytic ozonizer and method of decomposing ozone-containing waste gas using said ozonizer
11/15/1989EP0342168A1 Bipolar-electrode electrolytic cell
11/15/1989EP0342167A1 Bipolar-electrode type electrolytic cell
11/15/1989EP0342097A1 Method and apparatus for the purification of rinsing bath after brightening and for recovery of the brightening acids contained in these rinsing baths
11/15/1989EP0341614A2 Apparatus for the electrolytic separation of emulsions
11/15/1989EP0341490A1 Process for precipitation of chromium from tannery waste waters
11/15/1989EP0341357A1 Flocculation of suspended solids from aqueous solutions
11/15/1989EP0341280A1 Process for removing hazardous substances from water or air.
11/15/1989CN2047664U Magnetic seawater desalination device
11/15/1989CN1037128A Treatment method of the drained waste water in antibiotic production
11/14/1989US4880547 Methods for water treatment
11/14/1989US4880533 Apparatus and system for treating waste water and sludge
11/14/1989US4880513 Method and apparatus for generating acid and base regenerants and the use thereof to regenerate ion-exchange resins
11/14/1989US4880511 Electrodialysis, reverse osmosis
11/14/1989US4880510 Method for removing dye stuffs from wastewater
11/14/1989US4880504 Vacumm distillation system with spiralled cold coil
11/14/1989CA1262994A1 Membranes
11/09/1989DE3806732A1 Methode zur vergasung von organischem material in synthesegas oder gasfoermigen oder fluessigen kohlenwasserstoffen oder zur entfernung von organischem material in abwasser Method for the gasification of organic material into synthesis gas or houses on gaseous or liquid hydrocarbons or organic material in wastewater distance from
11/08/1989EP0341190A2 Electrographic apparatus
11/08/1989EP0341138A1 Process and apparatus for the treatment of waste water by electrolysis with a soluble anode
1 ... 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 ... 1452