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)
12/1995
12/06/1995CN1112906A Separation process
12/06/1995CN1112905A Magnesium ion containing flocculating agents for waste water treatment and method for preparation thereof
12/05/1995US5473033 Water-soluble cationic copolymers and their use as drainage retention aids in papermaking processes
12/05/1995US5472622 Salt basket for crystallizer and method of use in zero liquid discharge industrial facilities
12/05/1995US5472619 Flocculation and separation of fats from water using mixture of acetic acid, peracetic acid, hydrogen peroxide, phosphoric acid to oxidize impurities
12/05/1995US5472618 Acidifying the etching liquid, reducing with iron powder to precipitate copper
12/05/1995US5472586 Apparatus and method for purifying bath liquids
12/05/1995US5472567 Method of chemically reacting a slurry with a gas
12/05/1995CA1337709C Portable water-purifying devices
12/05/1995CA1337687C Apparatus for treating a fluid
11/1995
11/30/1995WO1995032227A1 Process for producing stable water-in-oil emulsions of hydrolysed polymers of n-vinyl amides and their use
11/30/1995WO1995032157A1 Method for decontaminating scour liquors
11/30/1995WO1995032156A1 A device against formation of limestone
11/30/1995WO1995032155A1 Process for valorizing a liquid acid effluent containing heavy metals
11/30/1995WO1995032154A1 Apparatus and method for separation of contaminants floating on the surface of a liquid
11/30/1995WO1995032152A1 Method for purifying impure aluminium oxide by extraction
11/30/1995WO1995032052A1 Polarity reversal and double reversal electrodeionization apparatus and method
11/30/1995DE4418156A1 Verfahren zur Herstellung von stabilen Wasser-in-Öl-Emulsionen von hydrolysierten Polymerisaten von N-Vinylamiden und ihre Verwendung A process for the preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides and their use
11/30/1995CA2190994A1 Process for producing stable water-in-oil emulsions of hydrolysed polymers of n-vinyl amides and their use
11/30/1995CA2189551A1 Apparatus and method for separation of contaminants floating on the surface of a liquid
11/29/1995EP0684210A1 Water purifying material, process for producing the same, and water purification equipment
11/29/1995EP0683837A1 Method and system for remediation of groundwater contamination
11/29/1995EP0683756A1 Reactor for biological sewage purification
11/29/1995EP0683693A1 Method and apparatus for separation by flotation
11/29/1995EP0683692A1 Method for recovering particulate and scavenging formaldehyde
11/29/1995EP0632746A4 Electrolytic cell for generating sterilization solutions having increased ozone content.
11/29/1995CN2213953Y Electric magnetic heater
11/29/1995CN2213726Y Automatic sodium ion exchanger
11/29/1995CN2213725Y Case type no-power dynamic oil-water separating device
11/29/1995CN2213503Y Magnetic kettle
11/29/1995CN1112787A Maleic copolymer, process for producing the same and use thereof
11/29/1995CN1112522A Method for removing emulsified oil and colloidal suspended substance in sewage
11/29/1995CN1112457A Gas dissolving
11/29/1995CN1112455A Electrodialysis treatment
11/28/1995US5471063 Fluid disinfection system
11/28/1995US5470586 Antifouling coating and method for using same
11/28/1995US5470486 Conversion of water-soluble inorganic sulfide compounds in an aqueous stream
11/28/1995US5470484 Method and apparatus for controlling the feed of water treatment chemicals using a voltammetric sensor
11/28/1995US5470481 Method and apparatus for recovering wash water from pulp and paper mill effluent
11/28/1995US5470480 Process for treating waste water effluent
11/28/1995US5470478 Apparatus and method for stripping and absorption of volatile materials
11/28/1995US5470476 Method for the treatment of animal waste
11/28/1995US5470465 Vortex system for separating particles from a liquid stream
11/28/1995US5470462 Apparatus for preventing scale formation in water systems
11/28/1995US5470461 Treatment of water with ozone and radiation and ion exchanging on ionized silica
11/28/1995US5470460 Apparatus for the purification of cyanide-containing waste water
11/28/1995US5470459 Apparatus and process for treatment of liquids
11/28/1995US5470444 Process for preparing low iron ammonium alum
11/28/1995CA2095132C Aerator for a liquid-filled basin
11/28/1995CA1337646C Mineral liquid producing device
11/23/1995WO1995031407A1 Method and apparatus for water treatment
11/23/1995WO1995031406A1 Method and compositions for treating recirculating water systems
11/23/1995WO1995031405A1 Method and device for generating low voltage electric fields in aqueous solutions
11/23/1995WO1995031404A1 Water sterilisation apparatus
11/23/1995WO1995031403A1 Multilayer device for disinfecting and purifying water
11/23/1995WO1995031402A1 Process for removing polluting material from water or wet solid matter
11/23/1995DE4418783A1 Desalination assembly has parabolic reflector
11/23/1995DE4417139A1 Ultraviolet light bank assembly cross-sectional arrangement
11/23/1995DE19500421A1 Capillary tube heat exchanger process and assembly sterilises fluids
11/23/1995CA2190292A1 Water sterilisation apparatus
11/22/1995EP0683138A2 Process for making photoprocessing waste solution harmless
11/22/1995EP0683137A2 Treatment of effluent seawater produced by flue gas desulphurization
11/22/1995EP0683136A2 Silver removal
11/22/1995EP0682985A1 Apparatus for the high-level clarification of liquids containing suspended solid particles
11/22/1995EP0682979A1 Device for adding carbon dioxide to tap water
11/22/1995EP0682867A1 Antibacterial ceramic and antibacterial ceramic filter
11/22/1995EP0682555A1 Process and apparatus for controlling the dewatering of suspensions
11/22/1995EP0682474A1 A method for controlling macroinvertebrates
11/22/1995EP0548107B1 Treatment of photographic effluents
11/22/1995EP0548106B1 Effluent treatment
11/22/1995CN2213158Y Sewage disposal device
11/22/1995CN2213157Y Water purifying device
11/22/1995CN2213155Y Distilled water generator for cold or hot drink
11/22/1995CN1112091A Water magnetizer for boiler
11/22/1995CN1030281C Solid-liquid-vapor multiple phase transformation processes with coupled absorption-melting
11/21/1995US5468739 Methods for controlling asiatic clams
11/21/1995US5468628 Compounds and methods for generating oxygen and free radicals used in general oxidation and reduction reactions
11/21/1995US5468536 Sorbent articles
11/21/1995US5468394 Precipitation and separation of salts, scale salts, and norm contaminant salts from saline waters and saline solutions
11/21/1995US5468378 Magnetic conditioners for treating liquids
11/21/1995US5468377 Solid halogen feed system
11/21/1995US5468375 Wastewater pretreatment tank assembly
11/21/1995US5468373 Multiple-effect water treatment apparatus
11/21/1995US5468360 Electrolytic chlorination
11/21/1995US5468351 Apparatus for recovering fresh water and apparatus for concentrating liquid
11/21/1995US5468350 Apparatus for manufacturing ultrapure water
11/21/1995US5468347 Method for separating boric acid
11/21/1995US5468066 Apparatus and method for injecting dry particulate material in a fluid flow line
11/21/1995CA2149799A1 Apparatus for the high-level clarification of liquids containing suspended solid particles
11/20/1995CA2149572A1 Improvement of seawater effluent treatment downstream of seawater so2 scrubber
11/17/1995CA2149260A1 Light-weight antibacterial ceramic and antibacterial ceramic filter
11/16/1995WO1995030629A1 Wastewater pretreatment tank assembly
11/16/1995WO1995030628A1 Method of removing organic compounds from air and water columns
11/16/1995WO1995030627A1 Process for treating a medium containing organic constituents
11/16/1995WO1995030482A1 Process for the demineralization of a liquid containing dissolved organic substances and salts
11/16/1995WO1995030471A1 Liquid treatment method and system
11/16/1995DE4420685C1 Control of water salt content
11/16/1995DE4416973A1 Electrolytic gas treatment of dirty water
11/16/1995DE4416297A1 Water extraction from sludge
11/16/1995DE19516858A1 Water treatment unit, preventing scale formation
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