Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
01/1978
01/24/1978US4070282 Activated carbon
01/24/1978US4070281 Method for treating waste water
01/17/1978US4069153 Method of destroying pyrogens
01/17/1978US4069152 Clarification of clay containing water
01/17/1978US4069149 Continuous fermentation process and apparatus
01/17/1978US4069148 Biologically active solids, activated carbon, oxidation
01/17/1978US4069143 Settling vessel
01/10/1978US4067894 Process for the production of granular metal-capturing agents for treating waste effluents containing heavy metals
01/10/1978US4067808 Chlorinator for a swimming pool
01/10/1978US4067806 Formulation and application of compositions for the detackification of paint spray booth wastes
01/10/1978CA1024082A1 Decantation process using laminae with deflectors
01/03/1978US4066835 Process for purifying the waste water produced in the process of producing ester plasticizers
01/03/1978US4066551 Portable water filtration device
01/03/1978US4066550 Anaerobic bacterial digestion
01/03/1978US4066545 Bilge water disposal system including oil recovery means
01/03/1978US4066544 Method and apparatus for electro shock degermination of water
01/03/1978US4066542 Method of purification of waste water by treatment with zirconium salt
01/03/1978US4066541 Process for treating waste water containing polyvinyl alcohol
01/03/1978US4066540 Apparatus and method for continuous froth flotation
01/03/1978US4066539 Oil-recovering material and process for preparing and using the same
01/03/1978US4066538 Sewage treatment
01/03/1978US4066514 Recovery of nitrated compounds from water by distillation
01/03/1978US4066494 Nitrogenous condensation products used as retention aids in papermaking
01/03/1978US4066092 Apparatus to regulate the pH value or other similar values of a solution
12/1977
12/27/1977US4065607 Terpolymers of maleic anhydride and their use as scale control agents
12/27/1977US4065527 Method and apparatus for interaction of gas and liquid
12/27/1977US4065486 Process for recovery of products from a waste stream in the manufacture of acrylonitrile
12/27/1977US4065387 Slime control method
12/27/1977US4065386 Magnetically treating water
12/27/1977US4065260 Halogen derivatives of alkynoxymethyl amines as corrosion inhibitors
12/20/1977US4064333 Process for the high molecular weight polymers of diallyldimethylammonium fluoride polymers directly from diallyldimethylammonium fluoride monomer
12/20/1977US4064220 Removal of dissolved organic matter from acidic aqueous solution
12/20/1977US4064166 Etherification of bark extracts
12/20/1977US4064047 Method and apparatus for waste water treatment
12/20/1977US4064035 Crystal structure
12/13/1977US4062772 Copper manganite spinel
12/13/1977US4062754 Apparatus for destroying microorganisms in an aqueous liquid by electrolytic oxidation
12/13/1977US4062735 Method of recovering fresh water from saline water
12/13/1977US4062734 Apparatus for desalinating sea water
12/13/1977US4062661 Diffuser for finely dividing a liquid, particularly water to be degassed
12/06/1977US4061807 Porous, nylon
12/06/1977US4061724 Crystalline silica
12/06/1977US4061568 Method for recovering and stabilizing fat and fatty substances as well as proteins and proteinous substances from process water
12/06/1977US4061567 Method for adsorption of oils
12/06/1977US4061566 Process using a supercritical fluid for regenerating synthetic organic polymeric adsorbents and wastewater treatment embodying the same
12/06/1977US4061565 Sorption of weak organic acids from water by polyurethane
12/06/1977US4061557 Assembly of electrodes
12/06/1977US4061556 Portable electrolytic apparatus for purifying drinking water
12/06/1977US4061531 Coke oven gas contact with liquor concentrate
11/1977
11/29/1977US4060588 Process for removing sulfur-containing gases from waste gases
11/29/1977US4060477 Apparatus for removing ions from an ionized liquid
11/29/1977US4060410 Process for removing heavy metals from fluid media
11/29/1977US4060281 Coal slurry feeder
11/22/1977US4059572 Mucopolysaccharide having flocculating activity of protein and method for producing the same
11/22/1977US4059531 Automatic sludge extraction and washing device for use in a water treatment settling apparatus
11/22/1977US4059526 Device for collecting light-weight substances floating on a liquid surface
11/22/1977US4059524 Water purifying device without movable mechanical part in contact with the liquid to be treated
11/22/1977US4059522 Apparatus for purifying water
11/22/1977US4059515 Cationic polymer of epihalohydrin and alkylene polyamine
11/22/1977US4059514 Method for purification of industrial waste water
11/22/1977US4059513 Treatment of water to remove certain ions therefrom
11/22/1977US4059492 Process for the purification of waste from acrylonitrile production
11/15/1977US4058591 Process for purifying waste water containing ammonium sulfate
11/15/1977US4058458 Alkylated or acylated amines
11/15/1977US4058457 Recovery of activated carbon
11/15/1977US4058374 Method of regenerating particulate adsorption agents
11/08/1977US4057498 Concentrators for recovering liquid pollutant floating on the surface of a sheet of water
11/08/1977US4057495 Method for treating a waste water containing a nonionic surface active agent
11/08/1977US4057392 Apparatus for treating sewage sludge
11/08/1977US4057390 Sulfur-containing bis-quaternaries
11/08/1977US4057223 Mixing block for mixing polymers
11/01/1977US4056482 Method for preparing aqueous, radioactive waste solutions from nuclear plants for solidification
11/01/1977US4056470 Automatic chlorinator
11/01/1977US4056469 Purification of waste water from hydrazine production
11/01/1977US4056466 Sludge, amine
10/1977
10/25/1977US4055495 Formulation and application of alkaline zinc chloride compositions and detackification of paint spray booth wastes
10/25/1977US4055494 Thickening device and method
10/25/1977US4055492 Aminoalkanol
10/25/1977US4055473 Process and apparatus for solar distillation
10/25/1977US4055467 Rhozyme hp-150
10/18/1977US4054542 Amine-epichlorohydrin polymeric compositions
10/18/1977US4054526 Pressurized water treatment bottle
10/18/1977US4054520 Scum removal system for a sewage settling tank
10/18/1977US4054518 Trichloroisocyanuric acid, boric acid, calcium stearate
10/18/1977US4054517 Chrome removal and recovery
10/18/1977US4054515 Water purification methods
10/18/1977US4054514 Sedimentation apparatus with flocculating feed well
10/18/1977US4054503 Portable metal recovery apparatus
10/18/1977US4054493 Method and apparatus for converting saline water to fresh water
10/11/1977US4053573 Recovery of sulfur values from spent sulfuric acid
10/11/1977US4053512 Reducing amide groups then quaternizing an acrylamide or methacrylamide derivative
10/11/1977US4053406 Apparatus and method for recovering oil from icy waters
10/11/1977US4053403 Method of treating and degerminating bath water, particularly bath water contaminated by the germ bact. pseudomonas pyocanea, in medical tub-baths and underwater massage baths
10/11/1977US4053401 Sludge treating process
10/11/1977US4053399 Method and system for waste treatment
10/11/1977US4053395 Method for producing methane gas by processing waste materials
10/11/1977US4053386 Electrolytic filter for electrolytically filtering and recovering metals from colloidal suspensions
10/11/1977US4053378 Water purification method and apparatus
10/11/1977US4053368 Preheating by solar radiation
10/11/1977US4052960 Fish rearing system