| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 02/23/1989 | WO1989001597A1 Barometric direct-contact condenser |
| 02/23/1989 | WO1989001456A1 Method for improving the utilization of polyelectrolytes in dewatering aqueous suspensions |
| 02/23/1989 | WO1989001361A1 Water purification apparatus |
| 02/23/1989 | WO1989001357A1 Clarification process |
| 02/22/1989 | EP0304412A2 Process for treating combustion residues from an incinerator, in particular a waste incinerator |
| 02/22/1989 | EP0303910A2 Method of reducing waste volume and an apparatus therefor |
| 02/22/1989 | CN2033006U Magnetic cup |
| 02/22/1989 | CN2033005U Double-current weak acid resin hydrogen ion-exchanger |
| 02/22/1989 | CN2033004U High-efficiency drinking water clarifier |
| 02/22/1989 | CN1031192A Structure and operation of iron button deoxidation equipment |
| 02/21/1989 | US4806514 Composite photocatalyst for refractory waste degradation |
| 02/21/1989 | US4806264 Contacting at ph 8 to 10 with amount of ferrous ions to reduce to elemental selenium |
| 02/21/1989 | US4806244 Combined membrane and sorption process for selective ion removal |
| 02/21/1989 | US4806169 Process for the removal of solid deposits from water supply installations |
| 02/21/1989 | US4805692 Condenser for water purification apparatus |
| 02/21/1989 | CA1250210A1 Process for the treatment of iron- and zinc- containing hydrochloric acid pickles |
| 02/21/1989 | CA1250192A1 Method of encapsulating organic material |
| 02/16/1989 | DE3811962C1 Arrangement for expelling highly volatile impurities from ground water |
| 02/16/1989 | DE3725924A1 Method for processing metal-containing rinse waters, especially rinse waters from electroplating |
| 02/16/1989 | DE3717947A1 Method and apparatus for concentrating substances from liquids |
| 02/15/1989 | EP0303401A2 Liquid treatment process |
| 02/15/1989 | EP0113769B1 Mutation assays involving blood cells that metabolize toxic substances |
| 02/15/1989 | CN2032612U Domestic multifunctional drinking utensil |
| 02/15/1989 | CN2032435U Magnetizer for beverage percolation |
| 02/14/1989 | US4804779 Chemical detoxification of polychlorinated biphenyls (PCBS) |
| 02/14/1989 | US4804480 Destruction of nitrophenols |
| 02/14/1989 | US4804478 Method and an arrangement for the treatment and disinfection of swimming and bathing reservoir water using chlorine and ozone |
| 02/14/1989 | US4804465 Water treatment apparatus |
| 02/14/1989 | US4804449 With a woven non-ionic modacrylic fiber diaphragm, nacl, naoh for water treatment; swimming pools |
| 02/14/1989 | US4804402 Preparation of natural fertilizing material |
| 02/14/1989 | US4804065 Device for dosing a flowing fluid |
| 02/14/1989 | US4803992 Electro-optical instruments and methods for producing same |
| 02/14/1989 | CA1249914A1 Device for continuous contacting of fluids and solids |
| 02/09/1989 | WO1989000980A1 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry |
| 02/09/1989 | WO1989000979A1 Process for the treatment and disposal of liquid/solid mixtures |
| 02/09/1989 | WO1989000977A1 Cartridge type filter for liquid purification |
| 02/09/1989 | WO1989000976A1 Simplified method and apparatus for purification |
| 02/09/1989 | DE3738573C1 Verfahren und Vorrichtung zur Aufarbeitung von Abfall-Loesungen aus Rauchgasreinigungsanlagen Method and apparatus for reprocessing waste solutions from flue gas cleaning systems |
| 02/09/1989 | DE3725449A1 Polymers of alkoxylated, unsaturated, quaternary ammonium salts, their preparation and their use |
| 02/09/1989 | DE3725427A1 Alkoxylated unsaturated quaternary ammonium salts, their preparation, and their use for the preparation of polymers |
| 02/09/1989 | DE3725297A1 Process for removing heavy metals from sludge liquors, sludges and waters containing cyanides or modified isonitriles |
| 02/08/1989 | EP0302852A1 Process for treatment and disposal of mixtures of solids and liquids |
| 02/08/1989 | EP0302825A1 Process for treating aqueous fluids containing organic compounds and salts of polyvalent inorganic acids |
| 02/08/1989 | EP0302708A2 High pressure oxygensaturated water treatment apparatus and process using said apparatus |
| 02/08/1989 | EP0302704A2 Sludge conditioning process |
| 02/08/1989 | EP0302531A1 Use of morpholino-enamine compounds such as morpholinohexose reductone as an oxygen scavenger |
| 02/08/1989 | EP0302522A2 Method and additive for monitoring circuit water hardness in conversion plants |
| 02/08/1989 | EP0302501A1 Biocide water treatment having reduced copper corrosion |
| 02/08/1989 | EP0302352A1 Apparatus for the removal of ammonia ions from waste |
| 02/08/1989 | EP0302298A2 Disinfection of sewage sludge |
| 02/07/1989 | US4802996 Glutaraldehyde; sodium dimethyldithiocarbamate-disodium ethylenebis/dithiocarbamate mixtures; oxidizing |
| 02/07/1989 | US4802995 Method for decomposing the cyanide radical in cyanide-bearing wastes or materials |
| 02/07/1989 | US4802994 Treating flue gas sludge with mix of hydrogen peroxide, dithiocarbamates, glutaraldehyde and metronidazole |
| 02/07/1989 | US4802993 Method of treating liquid wastes containing heavy metal chelate compounds |
| 02/07/1989 | US4802992 Removal of dispersed oil from water |
| 02/07/1989 | US4802991 Method and apparatus for water purification |
| 02/07/1989 | US4802985 Porous water-treating material |
| 02/07/1989 | US4802966 Electrodialysis of saturated solution of gypsum which also contains dissolved magnesium chloride and sulfate; desalting |
| 02/07/1989 | US4802964 Liquid separation process for suspensions by a pulsating electrical current |
| 02/07/1989 | CA1249885A1 Membrane processes for metal recovery and pollution control in metal process industries |
| 02/07/1989 | CA1249807A1 Fluid treatment apparatus, heat exchanger and method of forming an insulated tubular |
| 02/02/1989 | DE3724512A1 Process for decreasing the calcium content of waste waters from gas scrubbers operated with lime or limestone for separating off sulphur oxides and other acidic pollutant gases |
| 02/02/1989 | DE3724419A1 Process for purifying waste water |
| 02/01/1989 | EP0302030A1 Tank for the purification of waste water and household waste water |
| 02/01/1989 | EP0301924A2 Waste water treating process |
| 02/01/1989 | EP0301858A1 In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of wastes |
| 02/01/1989 | EP0301847A1 Cleaning using cyclodextrin |
| 02/01/1989 | EP0301783A2 Method for the recovery of metals from chloride solutions |
| 02/01/1989 | EP0301700A1 Neutralization of sulfuric acid containing iron ions |
| 02/01/1989 | EP0301452A1 Method for treating waste water from flue gas purifying plants |
| 02/01/1989 | EP0301447A2 Polymers of alkoxylated unsaturated quaternary ammonium salts, their preparation and their use |
| 02/01/1989 | EP0301157A1 Apparatus for the treatement of printing plates with a device for recycling the rinsing water |
| 02/01/1989 | CN2031895U Electric heater with water-purifying function |
| 02/01/1989 | CN2031840U Magnetic incrustation scale preventer for ic engine |
| 02/01/1989 | CN2031792U Drilling sewage treatment device |
| 02/01/1989 | CN2031679U High efficiency liquid disinfection device |
| 01/31/1989 | US4801436 Crystallizing apparatus |
| 01/31/1989 | US4801386 Thermoplastic polymer matrix, filler, absorption |
| 01/31/1989 | US4801384 Process for the removal of organic contaminants from soils and sedimenta |
| 01/31/1989 | US4801375 Water vending system |
| 01/31/1989 | US4801370 Field generator for generating an electrostatic field in a body of liquid |
| 01/31/1989 | US4801356 Removal of ammonia from fuel cell power plant water system |
| 01/31/1989 | US4801336 Process for accelerating the transfer of media in a fluidized bed |
| 01/31/1989 | CA1249566A1 Selective and continuous removal of metal-ion contaminants from plating baths |
| 01/26/1989 | WO1989000546A1 System for treating water by chlorination |
| 01/26/1989 | DE3823950A1 Process for reducing or removing ammonia and/or other odour-active substances from organically polluted waste waters |
| 01/26/1989 | DE3737002C1 Device for precipitating fine particles of solids from waste water |
| 01/26/1989 | DE3723375A1 Process for treating aqueous solutions from fur and hide preservation and from slaughterhouses and carcass utilisation plants |
| 01/25/1989 | EP0300793A1 Electrolysis unit for producing electrolyzed water |
| 01/25/1989 | EP0300593A1 Microbiological decomposition of chlorinated aliphatic hydrocarbons |
| 01/25/1989 | EP0300439A2 Separating device for small solid particles |
| 01/25/1989 | CN1030564A Method of processing red mud waste product of alumina production |
| 01/24/1989 | US4800235 Microbiocides |
| 01/24/1989 | US4800082 Sustained release microbiological control composition |
| 01/24/1989 | US4800039 Synergistic aluminum chlorohydrate and watersoluble polyamine or cationic allyl polymer |
| 01/24/1989 | US4800025 Apparatus and process for the gas flotation purification of oil-contaminated water |
| 01/24/1989 | US4800023 Method of aseptic treatment of water and a storage container to be used at such treatment |
| 01/24/1989 | US4800018 Portable water purification system |
| 01/24/1989 | US4799945 Freezing and melting |
| 01/24/1989 | CA1249239A1 Recovery of glycerine from saline waters |