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)
11/2000
11/29/2000CN2408111Y Integrated settling suspension filter water purifier
11/29/2000CN2408110Y Health magnetic water tap
11/29/2000CN2408109Y High frequency high energy electronic scale remover
11/29/2000CN2408108Y Multipurpose magnetizer
11/29/2000CN2408107Y Purifier for household drink water
11/29/2000CN2408106Y Improved distilled water making machine
11/29/2000CN2408105Y Water purifier for towerless water supply device
11/29/2000CN2407819Y Improved water purifier
11/29/2000CN1275098A Particle separating apparatus
11/29/2000CN1275094A Antimicrobial filter cartridge
11/29/2000CN1274700A Piezoelectric ceramic material and piezoelectric ceramic sintered body produced by the same
11/29/2000CN1274686A Electrical sludge-dewatering equipment with horizontal electric field
11/29/2000CN1274683A Electrochemical filling-bed water treating device and method
11/29/2000CN1274544A Edible concentrate with mineral elements and its preparation
11/29/2000CN1058946C Vertical retained aeration sewage treatment process and device
11/29/2000CN1058944C Method for treatment of waste water in synthesization of dimethyl disulfide
11/29/2000CN1058908C Method for prepn. of ultra filtering silica membrane used for seawater desalination
11/28/2000USRE36972 Electrolytic cell for generating sterilization solutions having increased ozone content
11/28/2000US6153151 System and method for generating ozonated water
11/28/2000US6153112 Dispersing particles of semiconductor metal oxide in water to be purified, contacting water and particles with oxygen or air, pressurization; exposing mixture to ultraviolet light to degrade tetrahydrothiophene by photocatalysis
11/28/2000US6153111 Method and apparatus for purifying water
11/28/2000US6153110 Method for controlling treatment chemicals in aqueous systems
11/28/2000US6153108 Method for removal of heavy metals from water
11/28/2000US6153105 For treatment of drinking water designed for use in commercial ice-making machines
11/28/2000US6153103 Method for the removal of ultrafine particulates from an aqueous suspension
11/28/2000US6153102 Disinfection of dead-ended lines in medical instruments
11/28/2000US6153096 Shroud for bottle mounted filters
11/28/2000US6153092 Apparatus for separating heavy isotopes of hydrogen from water
11/28/2000US6152997 Water/air treatment system
11/28/2000US6152160 Modular vacuum drainage system
11/28/2000CA2193557C A process for treating arsenic-containing waste water
11/26/2000CA2273022A1 An apparatus for purifying liquids
11/23/2000WO2000070339A1 Water sampling with analyte extraction and integration
11/23/2000WO2000069949A1 Organo-ceramic composite materials, their use as adsorbents, and methods of making the same
11/23/2000WO2000069780A1 Process control of the dewatering of sludge
11/23/2000WO2000069779A1 Method, device and use of said method for biological elimination of metal elements present in an ionized state in water
11/23/2000WO2000069778A1 Methods of using percarboxylic acid or anions thereof and methods of making the same
11/23/2000WO2000069549A1 Charged membrane
11/23/2000WO2000069545A1 Method for flue gas desulfurization and flue gas desulfurization system
11/23/2000WO2000050346A8 Water purification
11/23/2000WO2000036412A9 Method for monitoring advanced separation and/or ion exchange processes
11/23/2000WO2000015565B1 Fluidized radial flow bioreactor utilizing pellet media
11/23/2000DE19923682A1 Fresh water production apparatus, for fresh water recovery from seawater and waste water, has a heat exchange condenser between an inclined housing rear wall and an evaporator
11/23/2000DE19923644A1 Water treatment, useful for decontamination of water, sewage slurry and water in soil, refuse or dump, uses finely ground and activated dense magmatic rock, which binds harmful matter and sinks
11/23/2000DE19923543A1 Ground water purification is regulated and modified by modifying ground water supply to a purification wall for extending or shortening the contact time and for varying the loading of different wall portions with time
11/23/2000DE10014566A1 Water filter in compact tubular housing
11/23/2000CA2371060A1 Charged membrane
11/22/2000EP1053976A1 Waste water treatment method and apparatus
11/22/2000EP1053922A2 Wash water softening device
11/22/2000EP1053276A1 Improved polymer blends for dewatering
11/22/2000EP1053054A1 System for maintaining a clean skein of hollow fibres while filtering suspended solids
11/22/2000EP0946268A4 Method and apparatus for high efficiency reverse osmosis operation
11/22/2000EP0920340B1 Device for catalytically dissolving hydrogen peroxide
11/22/2000CN2406995Y Counterflush bath water purifier
11/22/2000CN2406994Y Apparatus for treating sewage with pure oxygen
11/22/2000CN2406993Y Water activator
11/22/2000CN2406992Y Small water activator
11/22/2000CN2406991Y Water tank and purifier system on roof
11/22/2000CN2406990Y 净水器 Water Purifier
11/22/2000CN2406989Y Water purifying tank
11/22/2000CN1273945A Magnetic scale remover with battery
11/22/2000CN1273944A Process for treating waste water or sewage with powdered coal ash
11/22/2000CN1058687C Installation for treating ramie boiled-off waste water by use of flue gas
11/22/2000CN1058686C Method for treating waste water containing organic acid by electro-dialysis method
11/21/2000US6149884 Method of treating gaseous waste from a unit for manufacturing an optical fiber preform, in order to recover germanium therefrom
11/21/2000US6149880 Method and apparatus for treating aqueous medium containing organic matter
11/21/2000US6149835 Composition for water treatment comprising water, about 0.5 to about 4 ppm of a haloamine such as n-chlorosulfamate and about 10 to about 70 ppm of hydrogen peroxide; inhibits bacteria and algae levels in pool water, for example
11/21/2000US6149826 First cylindrical filter of conductive activated carbon fiber, and a second filter inserted therein; voltage applying means for heating first filter to destroy bacteria; and a thermoconductive member to second filter to destroy bacteria
11/21/2000US6149822 In aqueous systems by adding an amine-formaldehyde condensate made with an amine selected from dicyandiamide, guanamines, guanidine, melamine, aniline, urea, thiourea, cyanamide, and/or guanylurea, and an ammonium salt
11/21/2000US6149821 Balanced water purification system
11/21/2000US6149820 Continuously removing organic compounds from ground water by enriching at usual ground water temperature with ozone or oxygen, and passing water to an activated carbon-supported catalyst of oxides of iron, cobalt, nickel or manganese
11/21/2000US6149819 Removing volatile halogenated compounds such as chloramines from the air and treating water in an indoor aquatic facility by monitoring the water's oxidation-reduction potential(orp); adding halogen donor and peroxide to maintain optimal orp
11/21/2000US6149810 Membrane with supported internal passages
11/21/2000US6149809 Water treatment system with backwashable precise prefilter unit
11/21/2000US6149805 Hydrocyclones
11/21/2000US6149804 Includes air compressor for generating compressed air and uses two molecular sieve beds that operate one after the other
11/21/2000US6149801 Water treatment device with volumetric monitoring features
11/21/2000US6149797 Contacting electrochemical cell with aqueous solution, said electrochemical cell comprising a cathode assembly, a nonporous support, an anode spaced from said cathode assembly, applying negative potential to said cathode assembly
11/21/2000US6149788 Manipulating flow conditions within electrodeionization system to inhibit precipitation of scale-forming metallic cations and consequent scaling of concentrate-chamber side of associated anion exchange membranes
11/21/2000US6149780 Water electrolyzer having a water presence detector
11/21/2000US6149393 Air lift pump
11/21/2000US6149345 High-vacuum groundwater and soil remediation system and related method and apparatus
11/21/2000US6149343 Method and apparatus for controlling zebra mussels and other bivalves using ultraviolet radiation
11/21/2000CA2308907A1 Waste water treatment method and apparatus
11/21/2000CA2272596A1 Waste water treatment method and apparatus
11/16/2000WO2000068421A2 Method for detecting microorganisms in a sample
11/16/2000WO2000068154A1 Method for carrying out zinc phophatization with reduced quantities of nickel, with subsequent water treatment
11/16/2000WO2000068153A1 Apparatus for oxidatively destructing trace injurious substance
11/16/2000WO2000068152A1 Method and apparatus for fluid treatment by uv-radiation
11/16/2000WO2000068151A2 Personal water filter bottle system
11/16/2000WO2000068150A2 Cold distillation method
11/16/2000WO2000068138A1 Water dispenser
11/16/2000WO2000067906A1 Apparatus and method of recirculating electrodeionisation
11/16/2000WO2000067905A1 Chelate-forming porous hollow fiber membrane and method for the recovery of germanium oxide with the same
11/16/2000WO2000067900A1 Novel triazine-based detoxification agents and their use
11/16/2000WO2000067899A1 Adsorbents made of styrene polymers
11/16/2000WO2000067871A1 Cold distillation method
11/16/2000WO2000050167B1 A novel agropolymer used for purification of polluted water or contaminated water containing metal or ions and a method of producing the agropolymer
11/16/2000DE19940814A1 Centrifugal liquid degassing device, for providing de-aerated water at pressures equal to, or greater than the supply pressure, comprises housing with rotor with perforated bottom disk
11/16/2000DE19926159A1 Mini-electrolysis cell for generating sodium hypochlorite from very dilute sodium chloride solution to protect water distribution systems against microbiological contamination.
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