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| Number | Title | Issue Date |
| 8097145 | Method and apparatus for decontamination of fluid The invention relates to methods and devices for the decontamination of fluid, particularly the removal of heavy metals and/or arsenic and/or their compounds from water, by means of electrolysis, wherein the water to be purified subjected to electrodes of different ... | 01/17/2012 |
| 7691253 | Method and apparatus for decontamination of fluid The invention relates to methods and devices for the decontamination of fluid, particularly the removal of heavy metals and/or arsenic and/or their compounds from water, by means of electrolysis, wherein the water to be purified subjected to electrodes of different ... | 04/06/2010 |
| 7374655 | Electrochemical water purifier An electrolytic water purification system and method use provides a water filtration device with a plurality of electrolytic cells having anodes and cathodes specifically selected to remove contaminants from water. The device is capable of efficiently removing nearl... | 05/20/2008 |
| 7018543 | Waste water treating method and waste water treating apparatus An object of the present invention is to provide a waste water treating method and a waste water treating apparatus which are capable of treating for-treatment water containing a nitrogen compound and a phosphorus compound at low costs and efficiently. The waste wat... | 03/28/2006 |
| 6887368 | Method and device for electroextraction of heavy metals from technological solutions and wastewater The basic principles of the method for heavy metals electroextraction from technological solutions and wastewater includes pretreating to remove Chromium-6 and high concentrations of heavy metals and periodically treating in a six-electrode bipolar cylindrical elect... | 05/03/2005 |
| 6709567 | REDOX water treatment system An apparatus for treating a flow of water containing contaminants includes first and second permeable electrodes and a power supply is coupled to each of the first and second permeable electrodes to create an electrical potential therebetween. The first and second p... | 03/23/2004 |
| 6699381 | Water purification/sterilization method and device therefor It is a compact water purification/sterilization method and its device with a high electrolytic efficiency in which even though it is used continuously for a long period of time in order to purify and sterilize water with low electrical conductivity such ... | 03/02/2004 |
| 6691927 | Apparatus and method for fluid emission control by use of a passive electrolytic reaction An apparatus and method for fluid emission control of a conductive fluid utilizes a passive electrolytic reaction to ionize the conductive fluid. The apparatus includes a fluid emission system having a reaction chamber that includes an anode and cathode t... | 02/17/2004 |
| 6663766 | Electroflocculation process and apparatus The invention provides an electroflocculation process for producing potable water from impure water, comprising forming trivalent ions in situ by electrolysis of metallic electrodes (16) selected from the group consisting of metallic aluminum electrodes a... | 12/16/2003 |
| 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 |
| 6383362 | Process and apparatus for eliminating dioxins Dioxins are eliminated from soot by conversion into oil and water. A gas stream of smoke and dioxin-entraining ash is passed through a curtain of water in a separator to separate the dioxin-entraining ash from the gas stream. The ash-water mixture is sepa... | 05/07/2002 |
| 6342150 | Redox water treatment system An apparatus for treating a flow of water containing contaminants includes first and second permeable electrodes and a power supply is coupled to each of the first and second permeable electrodes to create an electrical potential therebetween. The first a... | 01/29/2002 |
| 6332972 | Decontamination method and system, such as an in-situ groundwater decontamination system, producing dissolved oxygen and reactive initiators An apparatus for decontamination contaminated groundwater in-situ by increasing the quantity of dissolved oxygen in the contaminated groundwater and generating reactive initiators to remediate the contaminated groundwater. The apparatus includes a submers... | 12/25/2001 |
| 6280601 | Electrolytic method for sterilization of microorganisms and/or mineralization of organic and/or inorganic substances in ground soil This invention relates to a method for sterilizing microorganisms and/or decomposing organic and inorganic pollutants in a region of ground soil by passing a specified direct current through the contaminated soil region with a controlled voltage applied b... | 08/28/2001 |
| 6280637 | Treatment of liquid waste An electrocatalytic process for treating liquid waste material containing at least one environment-polluting substance, comprising causing the liquid waste material to be treated to pass between and to contact at least one pair of spaced apart electrodes,... | 08/28/2001 |
| 6264845 | Augmented electrolytic precipitation of metals, method and apparatus The invention is directed to a method and pressurized apparatus for removing anions and cations of transition and post-transition metals from aqueous solutions comprising a continuous flow electrolytic cell. Also a method for determining the amount of ars... | 07/24/2001 |
| 6238546 | Electrochemical treatment of effluent water An apparatus (200) for the treatment of effluent including a chamber (210) having an inlet (212) and an outlet (252), a plurality of plate-type electrodes (211) extending vertically in the chamber (210), and an electrical supply connected to the plurality... | 05/29/2001 |
| 6214203 | Anodic encasement corrosion protection system for pipe and appurtenances, and metallic components thereof Corrosible metallic elements of pipe are protected by an anodic encasement sleeve. The anodic encasement sleeve employs an inner sacrificial anodic layer and an outer environmental barrier layer to provide both cathodic and barrier protection against corr... | 04/10/2001 |
| 6210558 | Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically Stainless steel pickling process in which a pickling solution containing HF and Fe3+ ions as essential components is used, and wherein the oxidation to Fe3+ of the Fe2+ formed during the process in order to maintain the Fe... | 04/03/2001 |
| 6179987 | Method and apparatus to electrolytically produce high-purity magnetite particles A method and apparatus to electrolytically produce high-purity magnetite particles is provided. The apparatus comprises a container for holding an electrolytic solution. In accordance with one embodiment, the electrolytic solution includes sodium chloride... | 01/30/2001 |
| 6083377 | Electrochemical treatment of water contaminated with nitrogenous compounds Waters contaminated by nitrogenous compounds such as nitrate, ammonium, etc., are treated by electrochemical transformation of the contaminant to nitrogen gas. Electrodes are placed in the contaminated water to form a cell, in which the voltage of one of ... | 07/04/2000 |
| 6080300 | Electrolytic process for generation of low-sulphate ferric hydroxide suspensions to effect purification of wastewater The present invention is directed to a process for treating wastewater which comprises producing a ferric hydroxide suspension directly by electrolysis of the wastewater to precipitate heavy metals and organic or inorganic suspended solids thus purifying ... | 06/27/2000 |
| 6077416 | Method for purification of waste water using an electric coagulator The invention relates to purification of waste waters and may be used for water purification from heavy non-ferrous metals, chrome and organic impurities, as well as for separation of impurities from solution. The method is performed by electric coagulati... | 06/20/2000 |
| 6045707 | Electrochemical peroxidation of contaminated liquids and slurries A process has been invented for the purpose of decontaminating aqueous media derived from industrial wastestreams, sanitary wastestreams and natural sources. The aqueous media may contain solids in the form of sediment, soil or sludge. Contaminants includ... | 04/04/2000 |
| 5792369 | Apparatus and processes for non-chemical plasma ion disinfection of water Apparatus and processes for non-chemical disinfection of a wide variety of biologically contaminated water streams include a canister with flow control means built therein such that a small portion of a water stream is exposed to disinfecting salts and re... | 08/11/1998 |
| 5738778 | Method related to the sterilization of microorganisms and/or to the mineralization of organic substances including microbic metabolites in a ground region and in the ground water by means of electric current This invention relates to a method for sterilizing microorganisms and/or decomposing organic and inorganic pollutants in ground soil and ground water by means of a specified direct current applied between at least one pair of electrodes incorporated into ... | 04/14/1998 |
| 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 |
| 5531865 | Electrolytic water purification process A method for removing contaminants from a flow of wastewater using an electrolytic oxidation vessel having a chamber and at least one elongate cathode electrode and a plurality of elongate sacrificial anode electrodes aligned parallel with the cathode ele... | 07/02/1996 |
| 5480563 | Method for removing electrostatic charge from high resistivity liquid There are provided a method and an apparatus for removing electrostatic charges from high resistivity liquid. An insulating film is formed on the surface of a conductive element which is in contact with the high resistivity liquid wherein the insulating f... | 01/02/1996 |
| 5439567 | Process for treatment of a fluid and apparatus therefor A process for treatment of a fluid in need of treatment. The process comprising the steps of: (i) feeding the fluid in need of treatment to a fluid treatment chamber having a fluid inlet and a fluid outlet; (ii) passing the fluid in need of treatment thro... | 08/08/1995 |
| 5437776 | Process for reducing the phosphorus content of waste water According to a process for lowering the phosphorus content of waste water, the waste water flows in a purification circuit through individual conditioning basins, such as a preliminary sedimentation basin, an activation basin, final sedimentation basin or... | 08/01/1995 |
| 5435894 | Process and apparatus for improving quality of water The invention provides a process and apparatus for improving the quality of water in an easy manner and with reasonable cost and high efficiency. The process provides a grounding electrode and a pair of applying electrodes in water to be treated. First an... | 07/25/1995 |
| 5405509 | Remediation of a bulk source by electropotential ion transport using a host receptor matrix Remediation of soil, concrete and groundwater using electropotential gradient induced migration of a target ion and immobilization and/or confinement of the target ion by a host receptor matrix (HRM). In addition to immobilizing and/or confining the targe... | 04/11/1995 |
| 5387324 | Method for providing an ionic change in fluid A method and apparatus produces an ionic change in fluid by causing the fluid to flow in specified sequence over electrodes having different electrochemical potentials. The last electrode which the fluid contacts is so selected as to provide the desired i... | 02/07/1995 |
| 5376242 | Method of cleaning water and apparatus therefor There are provided a method and apparatus for cleaning contaminated water, for instance in lakes, marshes, rivers and waste water reservoirs in factory site. A set of fiat electrodes is immersed in the water, which electrode set includes a pair of voltage... | 12/27/1994 |
| 5368703 | Method for arsenic removal from wastewater A process and apparatus for removing arsenic from aqueous media is described. The process in general utilizes ferrous ion provided by an electrochemical cell which is added to the aqueous media in a first step, followed by mild oxidizing conditions genera... | 11/29/1994 |
| 5354438 | Separation of metal ions from aqueous solutions A process and apparatus for quantitatively and selectively separating metal ions from mixtures thereof in aqueous solution. The apparatus includes, in combination, a horizontal electrochemical flow cell containing flow bulk electrolyte solution and an aqu... | 10/11/1994 |
| 5326439 | In-situ chromate reduction and heavy metal immobilization A process for removing heavy metal contaminants from groundwater without injecting anion contaminants thereinto and without providing surface sludge for disposal is described. The process consists of withdrawing a flow of groundwater containing the contam... | 07/05/1994 |
| 5308501 | Treatment system for alkaline or acidic solution containing heavy metals There is disclosed a method of treating a solution, e.g., an alkaline or acidic solution, containing heavy metals ions therein. With respect to alkaline solutions, the method includes providing a body of the solution; contacting the body with a material s... | 05/03/1994 |
| 5271814 | Thin film electrocoagulation for removal for contaminants from liquid media A thin film electrocoagulation liquid treatment apparatus includes a nonconductive housing formed by opposite top and bottom walls, opposite side walls, and tubular end members with slots therethrough which define a treatment chamber. Pluralities of elong... | 12/21/1993 |
