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)
11/1983
11/22/1983CA1157392A1 Solvent recovery from water
11/22/1983CA1157341A1 Water-softening composition
11/16/1983EP0094363A1 Particulate oil-absorbing composition and process of using the same to absorb oil
11/16/1983EP0094226A2 Filter systems
11/15/1983US4415717 Copolymers of acrylamide and an alkyl 2-hydroxy-3-/dimethyl-3-acrylamidopropylamino-/propyl ether; enhanced oil recovery; water solubility
11/15/1983US4415662 Microbial degradation of petroleum materials
11/15/1983US4415661 Applying geotrichum fungus to crude petroleum oil spillages; pollution control
11/15/1983US4415467 Agent for the purification of waste waters and process for its production
11/15/1983US4415461 Using a mixture of sulfuric and nitjric acid and heating; detoxification
11/15/1983US4415460 Purification by heating with a chlorate compound in acid solution
11/15/1983US4415458 Flocculating reagents
11/15/1983US4415457 Adsorption of radioactive iron oxide particles from backflow water by a demineralization-used ion exchange resin
11/15/1983US4415456 Removal and destruction of residual nitrate esters in wastewater
11/15/1983US4415455 Reverse osmosis membranes based on hydroxyalkyl methacrylate and methacrylic acid copolymers
11/15/1983US4415452 Mixing with sludge; pressurization; aeration; flocculation; continuous processing
11/15/1983US4415446 Automatic chemical solution mixing unit
11/15/1983US4415424 Device for supply and discharge of liquid electrolyte for an electrolyzer of filterpress type
11/15/1983US4415075 Wall mounted light weight automatic water distiller
11/15/1983US4414996 System for automatically dispensing liquid chemicals into an intermittently flowing liquid stream
11/15/1983US4414817 Oxidation of hydrogen sulfide with a ferric chelate to form sulfur
11/15/1983CA1156970A1 Carbon or graphite modified porous percolating fibrous electrode and its application in electrochemical reactions.
11/15/1983CA1156966A1 Electro-chemical treatment of lquid effluent
11/15/1983CA1156935A1 Reverse osmosis liquid purification apparatus
11/15/1983CA1156901A1 1,3-dihydroxy acetone as an oxygen scavenger for water
11/10/1983WO1983003821A1 De-salinator for brackish - or salt-water
11/09/1983EP0093638A1 Method for fractional distillation and applications to the production of mechanical or thermal energy from two low level heat sources
11/09/1983EP0093568A1 Scavenging of residual acrylonitrile monomer
11/09/1983EP0093435A1 Electrolytic purification and reconcentration of wash and rinse caustic solutions recovered from the regeneration of ion exchange resins
11/09/1983EP0093320A2 Process for the extraction of onium salts from process and waste waters
11/08/1983US4414334 Oxygen scavenging with enzymes
11/08/1983US4414333 Soybean lecithin and a urea type compound
11/08/1983US4414185 And potassium hydroxide, lime precipitation, neutralization
11/08/1983US4414183 Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same
11/08/1983US4414117 Decarbonation of tailings sludge to improve settling
11/08/1983US4414115 Iron oxide coated with zinc sulfide as a filter aid
11/08/1983US4414114 Discharge of gases from submarine desalination plants
11/08/1983US4414091 Apparatus for electrochemical purification of contaminated liquids
11/08/1983CA1156642A1 Method for preparing a cation exchanger and method for using such an exchanger for extracting metals from liquids
11/01/1983US4412924 Removal of hydrogen sulfide
11/01/1983US4412918 Automatic and continuous chemical feed system
11/01/1983CA1156178A1 Anodically polarized surface for biofouling and scale control
10/1983
10/27/1983WO1983003596A1 Method and apparatus for the separation of constituents from a mixture
10/26/1983EP0092108A2 Process for the treatment of acid waste water containing aluminium and iron
10/25/1983US4411799 With glycerine and bromide or iodide compound
10/25/1983US4411795 Hydrophilic macromolecules with pendant hydrophobic groups, lipins
10/25/1983US4411756 Enhanced heat transfer
10/19/1983EP0091896A1 Scale preventing and eliminating apparatus
10/19/1983EP0091504A1 Removal of dyestuffs from water by electroflotation process
10/19/1983EP0091469A1 Method of immobilizing organic contaminants and non-flowable matrix produced therefrom.
10/18/1983US4410503 Process for the removal of urea, ammonia, and carbon dioxide from dilute aqueous solutions
10/18/1983US4410281 Mixing method and apparatus utilizing pipe elbows
10/18/1983US4409908 Bubbling combustible gas in the presence of surfactants, and burning impurities-containing-foam
10/18/1983CA1155568A1 Branched/cross-linked cationic phenol-formaldehyde polymers useful in waste water treatment
10/18/1983CA1155567A1 Dewatering fine coal slurries using two types of organopolysiloxanes
10/18/1983CA1155404A1 Portable water purifier especially for domestic use
10/13/1983WO1983003408A1 System of ionized oxygen allotrope gas water purification and method and apparatus therefor
10/12/1983EP0091015A2 Method of operating pure oxygen wet oxidation systems
10/12/1983EP0090842A1 Method of removing organic contaminants from aqueous compositions.
10/11/1983US4409119 Process for regenerating cleaning solutions
10/11/1983US4409102 Process for removing contaminants from a stream of methane gas
10/11/1983CA1155086A1 Magnetic conditioner and method for conditioning liquids
10/11/1983CA1155083A1 Method of reconditioning radioactive filtrate
10/11/1983CA1155068A1 Apparatus for the separation of solid/and or liquid particles from a liquid
10/05/1983EP0090551A1 Metal ion extraction process
10/05/1983EP0090515A2 Treatment of solutions to facilitate the removal of ferric iron therefrom
10/05/1983EP0090072A2 Pool cleaning device for rolling operation under pool cover
10/05/1983EP0090027A1 Method of breaking emulsions
10/04/1983US4408073 Process for preparation of α, β-unsaturated N-substituted-carboxylic acid amides
10/04/1983US4407976 Anionic adsorbent
10/04/1983US4407865 Process for coating a sterilizing filter material with silver and product formed thereby
10/04/1983US4407761 From a short chain aminocarboxylic acid
10/04/1983US4407741 Bilge cleaner
10/04/1983US4407719 Alternating electromagnetic force
10/04/1983US4407665 Migration of gases into vacuum over column
10/04/1983US4407322 Chemical feeder
10/04/1983CA1154886A2 Multi stage flocculation treatment system
10/04/1983CA1154884A1 Process and apparatus for removing dissolved iron from water
10/04/1983CA1154702A1 Method for treating oil sands extraction plant tailings
10/04/1983CA1154604A1 Synergistic biocidal compositions containing methylenebis(thiocyanate) and 2,2-dibromo-3- nitrilopropionamide, and use thereof
09/1983
09/28/1983EP0089536A2 Process of oxidation of hydrogen sulphide dissolved in waste water from coal-gasification plants
09/28/1983EP0089531A1 Dosing apparatus
09/27/1983US4406865 Binding, stripping
09/27/1983US4406795 Separating protein solids from fat-containing liquid by filtration
09/27/1983US4406794 External sludge collector for boiler bottom blowdown and automatic blowdown control initiated by conductivity probe within the boiler and method
09/27/1983US4406752 Electrodeposition on a carbon fiber cathode, then heating
09/27/1983US4406749 Solar water distillation apparatus
09/27/1983US4406748 Liquid purification system
09/27/1983CA1154420A1 Filter for sorption of heavy metals
09/27/1983CA1154265A1 Precious metals recovery process
09/21/1983EP0089128A1 Process for displacing dissolved gas from water
09/20/1983US4405485 Ion selective composition
09/20/1983US4405464 Process for the removal of selenium from aqueous systems
09/20/1983US4405463 Process for stabilizing silica-rich geothermal brine to prevent silica scaling
09/20/1983US4405462 Automatic revitalization of sulfide processing and treatment solutions
09/20/1983US4405460 Heating with solar radiation
09/20/1983US4405420 Catalyzed electrochemical gasification of carbonaceous materials at anode and electrowinning of metals at cathode
09/20/1983US4405349 Indirect-direct freeze exchange concentrator and method
09/20/1983US4405015 With acrylic ester or amide homo-(or co-) polymers
09/20/1983CA1154180A1 Effluent treatment process and apparatus
09/20/1983CA1153946A1 Dispersing and biodegrading compositions used on hydrocarbons polluted areas
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