Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
06/1988
06/29/1988EP0272883A2 Method of concentrating photographic process waste liquor by evaporation
06/29/1988EP0272673A2 Method for conditioning and dewatering sludges
06/28/1988US4753961 Biocidal compositions and use thereof containing a synergistic mixture of 2-bromo-2-nitropropane-1,3-diol and tetradecyl dimethyl sulfonium methosulfate
06/28/1988US4753781 Dishwashers, jars
06/28/1988US4753738 Sludge conditioning process
06/28/1988US4753728 Charcoal bonded by polyethylene
06/28/1988US4753632 Device for separating fine particles of solid matter from waste fluid
06/23/1988DE3741583A1 Method for destroying microbes in process water of paper-mills
06/23/1988DE3643205A1 Method for conditioning sewage sludge with calcium carbonate
06/23/1988DE3642638A1 Process and apparatus for the generation of ozone
06/23/1988DE3642419A1 Process for treating a free-flowing mixture containing a liquid phase
06/22/1988EP0272013A2 Process for inhibiting scale formation
06/22/1988CN87212393U Health care air pot capable of magnetizing water
06/22/1988CN87205382U High frequency treatment machine for water
06/22/1988CN87203438U 流体磁化装置 Fluid magnetization device
06/21/1988US4752401 Germicidal ultraviolet lamp
06/21/1988US4752398 Cysteine residue fixed to insoluble carrier
06/21/1988US4752397 Process for removing heavy metal ions from solutions using adsorbents containing activated hydrotalcite
06/21/1988US4752392 Filtration apparatus having a plurality of filtration beds
06/21/1988US4752389 For household use
06/21/1988US4752364 Method for treating organic waste material and a catalyst/cocatalyst composition useful therefor
06/21/1988US4752363 Adding alkali metal hydroxide, filtration and electrolysis
06/21/1988US4752318 Aqueous system treated with a biocide
06/21/1988US4752308 Pressurizing and directing into high pressure solids separator at same temperature as quench chamber
06/21/1988US4752306 Improved mass transfer
06/21/1988US4752283 Waste water cleaning system for use with apparatus for processing exposed lithographic plates
06/21/1988US4752131 Laser-optical arrangement for measuring the degree of dispersion in flowing systems
06/21/1988CA1238431A1 Flocculation of coal particles and coal slimes
06/21/1988CA1238257A1 Process of producing a flocculating agent
06/16/1988WO1988004282A1 Sludge restructuring and conversion method
06/16/1988WO1988004281A1 Improvements in fluid media sterilization apparatus
06/16/1988WO1988004193A1 Liquid purification system
06/16/1988DE3641269A1 Process for treating waste waters containing photoresists
06/16/1988DE3506042A1 Control even for only partially discharged water treatment units having measuring and/or inspection points for the water and/or the exchanger batch for matching the regular regeneration to the respective degree of exhaustion of the overall exchanger batch
06/15/1988EP0271065A2 Method and apparatus for treating fluids
06/15/1988EP0270993A2 Process for preventing the development and multiplication of harmful germs in the water of a sanitary hot water system, and applicances therefor
06/15/1988EP0270936A1 Method of removal of polycyclic aromatic hydrocarbons from a liquid
06/15/1988EP0270879A1 Method and apparatus for disinfecting aqueous mediums, especially drinking water
06/15/1988CN87212407U High voltage static electric water treeting device
06/15/1988CN87211745U Catalyst reaction cryogenic desorption and oxygen removing system
06/15/1988CN87211160U Fluidized bed water treating device with three towers
06/15/1988CN87210087U Automatic quantitive program control ion exchanger
06/15/1988CN87106325A Process for desulfurization of flue gases
06/14/1988USRE32694 Separation of cobalt and nickel by solvent extraction
06/14/1988US4751392 Apparatus for sterilizing liquids
06/14/1988US4751005 Wet oxidation with oxygen and composite metal oxide catalyst
06/14/1988US4750998 Desalting filtration device
06/14/1988CA1238146A1 Monitoring method for polyacrylic acids in aqueous systems
06/14/1988CA1238132A1 Aqueous polymer dispersions
06/14/1988CA1238012A1 Apparatus for the treatment of water
06/09/1988DE3640542A1 Process for the continuous physicochemical treatment of water, in particular drinking water
06/08/1988EP0270382A2 Method for treating photographic processing waste solution
06/08/1988EP0270358A2 Method of concentrating photographic process waste liquor by evaporation
06/08/1988EP0270129A2 Antibiotic zeolite
06/08/1988EP0269941A1 Fluid sterilizing process and device
06/08/1988EP0269769A1 Filtration with biogenetic silica
06/08/1988EP0269659A1 Novel compositions and method for neutralization and solidification of hazardous alkali spills
06/08/1988CN87210733U Treatment installation for sewage containing chromium
06/07/1988US4749537 Surface oxidation of pressure-shaped microbiocidal metal compound; sustained release
06/07/1988US4749497 Method and apparatus for treatment of acidic water
06/07/1988US4749496 Filtration through open cell foam containing active powdered materials
06/07/1988US4749492 Dilution and settling slurry; flocculation
06/07/1988US4749491 Microbiological decomposition of chlorinated aliphatic hydrocarbons
06/07/1988US4749484 Home water filter
06/07/1988US4749481 A flat packet or pad; for coffee makers, ice makers
06/07/1988US4749457 Parts of consumable aluminum electrode short circuiting against a platinum electrode
06/07/1988US4749456 Electrolytic recovery of copper from waste water
06/07/1988US4749447 Evacuated evaporation-pressurized condensation solar still
06/07/1988US4749394 Method and apparatus for freeze drying
06/07/1988CA1237644A1 Process for treating and recovering pickling waste liquids for stainless steel
06/02/1988WO1988003835A1 Fluid energizing method and apparatus
06/02/1988WO1988003763A1 Method and apparatus for extending the shelf life of fluid food products
06/01/1988EP0268968A1 Fluid sterilizing process and device
06/01/1988EP0268738A2 Electrolytic cell for separating metals
06/01/1988DE3638586A1 Bathroom unit for therapeutic purposes, filter and heating and for a specially adapted method
06/01/1988CN86107912A Tubular type water collection uniflow sedimentation device
06/01/1988CN86107846A Removal of formaldehyde from industrial waste water by precipitation of methylidyne-urea
06/01/1988CN85102690B Method of treating waste water contg. cyanide
05/1988
05/31/1988US4748013 Adsorbent for recovery of bromine and bromine-recovering process using same
05/31/1988US4747978 Calcium hypochlorite compositions
05/31/1988US4747962 Separation of components of a fluid mixture
05/31/1988US4747958 Method and apparatus for treating bodies of water
05/31/1988US4747957 Brine treatment using ethylene carboxylic acid polymers
05/31/1988US4747955 Purification of liquids with treated polyester fibers
05/31/1988US4747954 Ethylene-unsaturated acid copolymer
05/31/1988US4747951 Method for recovering water of reduced salinity from high salinity water
05/31/1988US4747945 Lightweight media depth filter
05/31/1988US4747920 Solid-liquid separation process for fine particle suspensions by an electric and ultrasonic field
05/31/1988CA1237544A1 Treating waste water contaminated with a low concentration of latex
05/26/1988DE3639572A1 Method for introducing gas into waste waters
05/25/1988EP0268158A1 Water clarification process and composition and method therefore
05/25/1988EP0267962A1 Bacterial composition and method for purifying water and soil of oil pollution
05/25/1988EP0177509A4 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content.
05/25/1988EP0174349B1 Plant for neutralizing acid condensates
05/25/1988CN85105155B Process and device for manufacture of mineral water
05/24/1988US4746457 Flocculation of suspended solids from aqueous solutions
05/24/1988US4746443 Bentazon containing wastewater treatment
05/24/1988US4746442 Process for the removal of metals from waters containing them
05/24/1988US4746440 Process and apparatus for the separation of emulsions or of solids from a suspension of solids and a liquid by means of pressure or turbo flotation
05/24/1988US4746439 Adsorption on alkaline earth silicate, filtration