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)
08/1978
08/15/1978US4107021 Water pot with an electrolyzing device
08/15/1978US4107000 Solar still
08/15/1978US4106560 Falling-film heat exchanger
08/15/1978CA1036723A1 Method or reducing the emission of organic substances from cellulose plants
08/15/1978CA1036719A1 Method of separation of fission and corrosion products and of corresponding isotopes from liquid waste
08/15/1978CA1036718A1 Separation method and device
08/15/1978CA1036575A1 Nitrohumic acid-containing adsorbents and process for producing same
08/15/1978CA1036564A1 Pressure-reducing apparatus
08/08/1978US4105858 Quaternary salts of methacrylic or acrylic esters and cationic quaternary polyelectrolytes and ion exchange resins thereof
08/08/1978US4105576 Citric acid, expanded perlite, flour, fumed silica, dye and water
08/08/1978US4105558 Apparatus for draining of muddy liquids
08/08/1978US4105556 Reverse osmosis
08/08/1978US4105552 Method of controlling the growth of microorganisms
08/08/1978US4105549 Method and apparatus for purification of water
08/08/1978US4105545 Process for removing cyanide-containing components from aqueous media
08/08/1978US4105505 For distilling sea water
08/01/1978US4104341 Utilization of constituents of effluent from the manufacture of styrene bead polymers in the manufacture of fibrids
08/01/1978US4104226 Pulp additives in paper manufacture
08/01/1978US4104204 Photosensitization of oxygen to the singlet excited state using ion exchange resin to which is attached a dye and photooxidative waste water treatment
08/01/1978US4104190 Generation of chlorine dioxide for disinfection and sterilization
08/01/1978US4104170 Liquid filter having improved extended polypropylene element
08/01/1978US4104166 Ozonization
08/01/1978US4104162 Process for detoxification of formaldehyde containing waste waters
08/01/1978US4104161 Flooculation using cationic polyamines
08/01/1978US4104160 Cellulosic absorbent pretreated with polyalkyleneimine and metal salt
08/01/1978US4104159 Method of separation of fluoride ion from water
08/01/1978US4104158 Volume and time of day control for water softener regeneration
08/01/1978US4104142 Electrostatic and electrolytic stimulation of coagulation
08/01/1978US4104131 Process for separating ammonia and acid gases from waste waters containing fixed ammonia salts
08/01/1978US4104038 Stripping ammonia and other gases, sodium hydroxide, calcium hydroxide, oxygen
07/1978
07/25/1978US4103167 Ultraviolet liquid purification system
07/25/1978US4103080 High molecular weight water soluble polyacrylamide, storage stability
07/25/1978US4102827 Novel polyelectrolytes
07/25/1978US4102784 Colloid free precipitation of heavy metal sulfides
07/25/1978US4102783 Adsorbent process for oily materials
07/25/1978US4102752 Providing potable water under pressure from sea water
07/25/1978US4102645 For liquid by radiation
07/25/1978US4102303 Process and paint spray booth using a washing liquid and reuse thereof
07/25/1978US4102277 Reaction to form calcium sulfate, pollution control
07/18/1978US4101777 Fluid purification device and ultraviolet lamp therefor
07/18/1978US4101674 Halogen derivatives of alkynoxymethyl amines as microbiocides
07/18/1978US4101409 Electrolytic flotation apparatus
07/18/1978US4101286 Bubble forming device having no moving parts
07/11/1978US4100614 Method for polymer dissolution
07/11/1978US4100066 Treating paint waste solids
07/11/1978US4100052 Electrolytic generation of halogen biocides
07/04/1978US4098886 Desulfurization
07/04/1978US4098851 Device for mixing gases and liquids
07/04/1978US4098716 Catalyst for sulfite scavengers
07/04/1978US4098697 Apparatus for removing mercury from waste water
07/04/1978US4098694 Methods and compositions for dispersing oil films
07/04/1978US4098693 Cationic chlorine-resistant polymeric flocculants and their use
07/04/1978US4098691 Purification of water for boiler
07/04/1978US4098690 To reduce ammonia content, by ion exchange
07/04/1978US4098673 Agglomeration
07/04/1978US4098660 Method of purifying water
06/1978
06/27/1978US4097638 Multilayer, sized non-woven cotton fibers, biaxial flexible polyolefin net
06/27/1978US4097390 Ethoxylated secondary alcohol, dialkyl sulfosuccinic acid, mono(ethoxylated alcohol) carboxylate ester of a sulfosuccinic acid or salt
06/27/1978US4097389 Novel amino alcohol reaction products and compositions containing the same
06/27/1978US4097377 Sewage treatment, coagulation, precipitation, chelation
06/27/1978US4097376 Process for the purification of industrial effluents
06/27/1978US4097356 Using sodium chloride and water
06/27/1978US4097355 Water sterilization apparatus
06/20/1978US4096081 Water softeners
06/20/1978US4096064 System for removal of toxic heavy metals from drinking water
06/20/1978US4096060 Water purification
06/20/1978US4096039 Condition sensing control system for desalinator automation
06/13/1978US4095115 Ozone generation apparatus and method
06/13/1978US4094786 Treatment control apparatus for water systems
06/13/1978US4094783 Centrifugal flotation separator
06/13/1978US4094780 Recovering copper catalyst
06/13/1978US4094779 Activated carbon filter
06/13/1978US4094778 Calcium and magnesium cations
06/13/1978US4094777 Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass
06/13/1978US4094776 Method for treatment of oil-containing waste water by using an oil adsorbent
06/13/1978US4094773 Process for sewage treatment with countercurrent heat transfer means
06/13/1978US4094755 Water purification method
06/13/1978US4094747 Thermal power station combined with a plant for seawater desalination
06/13/1978US4094734 Evaporator and treatment of viscous brines
06/13/1978CA1033083A1 Baryum sulfide treatment of sulfuric acid and/or ammonium sulfate containing waste waters
06/06/1978US4093605 Auxiliary agent for improving retention, drainage and treatment
06/06/1978US4093551 Device for purifying sewer water in small sewer systems
06/06/1978US4093544 Method and apparatus for ammonia-nitrogen removal by vacuum desorption
06/06/1978US4093543 Increasing ph using decomposition catalyst of alumina, titania, titania-zirconia, zirconia, or silica
06/06/1978US4093542 Flocculating agent comprising water-in-oil emulsion of H-active polymer carrying formaldehyde and amine radicals
06/06/1978US4093541 From industrial sewage waters, activated carbon having a large surface area
06/06/1978US4092834 Freeze separation plant
05/1978
05/30/1978US4092250 Water-permeable thin films of synthetic pulp or fiber containing oxygen, nitrogen or sulfur polar groups
05/30/1978US4092243 Polycarbonates
05/30/1978US4092242 Removing synthetic detergents by emulsification then flocculation
05/30/1978US4092105 Method of recovering oxidized dye from dye wash water
05/30/1978US4091635 Apparatus for concentrating a feed stream
05/23/1978US4090960 Gas energizing apparatus and related method
05/23/1978US4090954 Method for oxidizing mercaptans and mercaptide compounds from aqueous alkaline solutions and hydrocarbon distillates
05/23/1978US4090940 Apparatus for producing methane gas by processing waste materials
05/16/1978US4089831 Antiagglomerants
05/16/1978US4089780 Color amine complexes with polymers of ammonia and ethylene dichloride or ethylenediamine
05/16/1978US4089779 Flocculation with iron hydroxide and aluminum hydroxide/ ensate, ferromagnetic separation
05/16/1978US4089768 Battery operated water purification system
05/16/1978US4089749 Apparatus for producing high-purity water
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