Class 205/747 - With filtering

Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter in which the water, sewage, or other waste
No. of patents: 35
Last issue date: 07/03/2007

Number	Title	Issue Date
7238272	Production of electrolytic water Apparatus and methods are provided for producing electrolytic water using three chambers, rigid plates and ion exchange membranes. Benefits include reduced scale production and increased long-term bactericidal effects of the water produced. ...	07/03/2007
7169235	Cleaning method and polishing apparatus employing such cleaning method A method is suitable for cleaning substrates, after polishing, that require a high degree of cleanliness, such as semiconductor wafers, glass substrates, or liquid crystal displays. The method includes polishing a substrate using an abrasive liquid containing abrasi...	01/30/2007
7160472	Treatment of a waste stream through production and utilization of oxyhydrogen gas Methods and systems for treating a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements wat...	01/09/2007
7014770	Filtering method of a colloidal solution A filtering method is directed to a wastewater of CMP process, which includes sub-micrometer particles suspended as colloid. The wastewater is filtered by a gel membrane formed on a surface of plastic filter. A coagulant or a pH adjuster is added to the wastewater s...	03/21/2006
6902677	Method of removing metal ion and apparatus for treating substrate A method of removing a metal ion from a treating liquid for use in treating a substrate comprises the steps of: applying a first voltage via an electrode to the treating liquid that flows in a supply piping so that deposition can occur; and applying a second voltage...	06/07/2005
6723226	Method and apparatus for forming electrolytic water and apparatus for washing semiconductor substrate using electrolytic water-forming apparatus In forming an electrolytic water, pure water or ultra-pure water is added to at least one solid supporting electrolyte selected from the group consisting of oxalic acid, ammonium oxalate, ammonium formate, ammonium bicarbonate, and ammonium tartrate to prepare a sol...	04/20/2004
6645366	Waste water treatment device A waste water treatment device is provided in which removal of phosphorus and removal of nitrogen can efficiently be carried out and a decrease in size of the device and a decrease in cost can be achieved. The waste water treatment device includes a waste...	11/11/2003
6572902	Process for producing improved alkaline drinking water and the product produced thereby A process for producing improved alkaline water includes filtering potable source water to remove selected particles and then purifying the filtered water. Selected alkaline minerals are added to the purified water, with the resulting mineralized water be...	06/03/2003
6558537	Portable hydration system A portable hydration system comprising water disinfection, filtration and pump features. The system comprises an electrolytic oxidant generating cell which utilizes a salt to create oxidants for disinfecting liquids such as water....	05/06/2003
6391188	Processes and apparatus for recovery and removal of copper from fluids The invention provides novel processes and apparatus for removal of copper from a solution or fluid, particularly spent etchant solutions that contain copper produced through printed circuit board manufacture. The invention is particularly useful for reco...	05/21/2002
6358395	Under the counter water treatment system An under the counter water treatment system to treat water from an outside supply source, is provided. A prefilter to remove sediment, organic compounds, and certain pollutants is first provided. Then the water enters a reverse osmosis system including re...	03/19/2002
6228251	Electrolytic water producing apparatus and cleaning method for the same Acid water containing hypochlorous acid is produced by an anode chamber of an electrolytic chamber, and alkali water is produced by a cathode chamber. The acid water is reserved in a reservoir tank and is returned into the anode chamber by actuating a ret...	05/08/2001
6221234	Method for pickling products of a metal alloy in absence of nitric acid and for recovering exhausted pickling solutions and apparatus therefore A method for pickling products in a metal alloy containing iron, and products in titanium and alloys thereof, in the absence of nitric acid as an oxidizing agent, and for the recovery of the exhausted solutions, characterized in that the recovery of the e...	04/24/2001
6056866	Sterilizing apparatus and method for medical instruments The present invention provides a sterilizing apparatus and a sterilizing method for medical instruments enabling easy sterilization of medical instruments in a short time. There are provided an electrolyzation device which produces acidic electrolytic wat...	05/02/2000
6036840	Method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid A method and a reactor for electrochemical conversion of a material (21) being insoluble in a fluid into a material being soluble in the fluid, which method comprises that a flow of the fluid is passed to a reaction zone which comprises an internal circui...	03/14/2000
6007696	Apparatus and method for manufacturing electrolytic ionic water and washing method using electroyltic ionic water Disclosed is an apparatus for manufacturing an electrolytic ionic water for treating a substrate, comprising an electrolytic cell including an anodic chamber and a cathodic chamber partitioned from the anodic chamber by a porous membrane, a first carbon e...	12/28/1999
5961803	Leaching process An increasing problem with the pulping chemical recovery system, is the presence of chloride and potassium in the recovery boiler. Chloride and potassium increase inter alia the stickiness of carryover deposits and dust particles to the recovery boiler tu...	10/05/1999
5952542	Method of oxidation Electrochemically regenerated RuO4 (or corresponding oxides of Os, Ir, Rh) is used in the decomposition of matter, especially matter containing organic material. The method has particular advantage in dealing with compounds containing chlorine ...	09/14/1999
5944978	Cleaning method of an electrolyzed water forming apparatus and an electrolyzed water forming apparatus having mechanism for conducting the method Chlorine ion-containing water supplied from one of water discharge pipelines of an electrolysis vessel of an apparatus for continuously forming electrolyzed water is caused to flow backwardly to one of electrode chambers and a water supply branch pipe the...	08/31/1999
5938916	Electrolytic treatment of aqueous salt solutions There is disclosed a method and apparatus for generating a sterilizing solution through the electrolytic treatment of an aqueous salt solution. An aqueous salt solution is passed, under pressure, into the working chamber of an electrolytic cell, which cel...	08/17/1999
5938915	Water for medical treatment, production method thereof, and dialysis apparatus using water for medical treatment as dialysis liquid A main feature of the present invention is to provide water for medical treatment that can eliminate superoxide anion radicals that trigger various disease. Raw water including at least sodium, potassium, magnesium, and calcium ions is supplied to an eloe...	08/17/1999
5928490	Laundry wash process and waste water treatment system An improved laundry treatment system comprises a washer which is connected to discharge used water to a tank for filtration and recirculation to the washer, and a tank containing water for making up losses in the wash cycle, and an electrolytic cell there...	07/27/1999
5876590	Electrochemical leaching of soil An electrochemical leaching system for cleaning contaminated fines. The system has a waste vessel for receiving and holding a contaminated fines and lixiviant mixture. On a side of the waste vessel is an anolyte vessel holding an anolyte fluid. An anolyte...	03/02/1999
5635053	Method and apparatus for cleaning electronic parts Electric parts including semiconductor substrates, glass substrates and the like are washed with various cleaning solutions. After the cleaning, said parts are cleaned with either anolyte or catholyte electrolytic ionized water (EIW) produced from deioniz...	06/03/1997
5578193	Method and apparatus for wet treatment of solid surfaces The object of the invention is to accomplish surface treatment such as cleaning, etching or after-treatment of parts or semi-processed articles for the manufacture of industrial or medical products without raising the problem of environmental pollution an...	11/26/1996
5540819	Water treatment method There is proposed a water treatment method by causing the water to be pured to flow through a first and a second compartments arranged in succession in an electrolysis cell divided by a permeable membrane into said first and second compartments. Each of ...	07/30/1996
5538636	Process for chemically oxidizing highly concentrated waste waters A process to purify waste waters using chemical oxidation and Fenton's reagent by the action in the acid range of hydrogen peroxide and iron(II) compounds and subsequent precipitation in the weakly acid to alkaline range of the iron(III) compounds, said p...	07/23/1996
5536387	Silver removal Effluent streams from photographic processes contain both silver and thiosulphate ions, and because of the formation of complex anions it is difficult to remove the silver. The silver may be removed using a cell (12) with a cathode (24) exposed to the eff...	07/16/1996
5322600	Method and apparatus for removal of selenium from solution The present invention provides an improved method and apparatus for removing dissolved selenium from a wastewater solution. The apparatus treats heated selenium containing solution in a single, flow-through operation by employing both the anode chamber an...	06/21/1994
5258109	Electrodialytic conversion of complexes and salts of metal cations Complexes and salts of metal cations and acid anions are electrodialytically converted into insoluble hydroxides of the metal cations and acids of the anions. The conversion is effected without the electrotransport of metal cations by insolubilizing the m...	11/02/1993
5141610	Electrodialytic process for restoring sodium hydroxide etchants for aluminum A solution, sol or colloidal dispersion of a substantially water insoluble metal hydroxide or acid and an alkali metal hydroxide are electrodialytically converted to a solid substantially water insoluble metal hydroxide or acid and a solution of the alkal...	08/25/1992
5047126	Method for recovering metal from waste stream An electrolytic treatment method and a unit in which such a method is practiced are provided wherein heavy metal hydrous oxides are precipitated and recovered from a dilute waste stream to render the waste stream suitable for discharge. The waste stream i...	09/10/1991
4337129	Regeneration of waste metallurgical process liquor Spent aqueous hexavalent chromium solutions containing trivalent chromium ions and extraneous metal ions are oxidized by placing said exhausted Cr+6 solution in the anode compartment of an electrolytic cell as the anolyte, said cell being separ...	06/29/1982
4310396	Method for desalination of water, in particular sea water A method for desalination of sea water using a main electrochemical generr which has an anode compartment through which the water to be desalinated is fed and which causes formation in the solution of chlorates and perchlorates, removal of the latter bei...	01/12/1982
4111768	Method of separating solids from a fluid system Method for the electrolytic separation of colloidally suspended material from a fluid system and compositions for using such method to recover such materials....	09/05/1978

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Class 205/747 - With filtering