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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 Fe 3 + ions as essential components is used, and wherein the oxidation to Fe 3 + of the Fe 2 + formed during the...
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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...
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6083377 |
Electrochemical treatment of water contaminated with nitrogenous compounds
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4978433 |
Method for recovering silver from photographic processing solution
There is disclosed a method for recovering silver from photographic processing solution by electrolysis, in which method the cathode potential is set at a potential range wherein a precipitate of...
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4919775 |
Method and apparatus for electrolytic treatment of sludge
A multiplicity of electrode plates, anodic and cathodic, are alternately arranged in an electrolytic tank side by side at short intervals in a row. A circulating current of the sludge being treated...
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4915846 |
Water clarification
A water clarification apparatus (10) and method for removing dye and other organic matter from waste water within a dye lagoon (11) or other reservoir. The water clarification apparatus (10)...
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4880510 |
Method for removing dye stuffs from wastewater
A process for removing color impurities such as dye stuffs from wastewater solutions and simultaneously removing heavy metal contaminants is described. The process includes passing the wastewater...
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4800005 |
Treatment plant for recovery of metal from hazardous waste
A treatment plant for the recovery of silver from spent photo fix solution is provided in which the concentration of silver in the spent solution is reduced to meet Environmental Protection Agency...
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4749456 |
Electrolytic recovery of copper from waste water
An electrolytic cell which has at least one three-dimensional cathode of non-galvanizable material, which cell is useful in removing metal ions or complexed metals from industrial waste water for...
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4693798 |
Method of treating contaminant ions in an aqueous medium with electrolytically generated ferrous ions, and apparatus therefor
An aqueous medium containing contaminant ions such as hexavalent chromium ions is treated by introducing electrolytically generated ferrous ions which are preferably generated in water acidified to...
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4585533 |
Removal of halogen from polyhalogenated compounds by electrolysis
A method for electrochemically removing halogen from a halogenated compound utilizing an electrically conducting liquid medium in an electrolytic cell is disclosed. Halogen is extracted and reacted...
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4378276 |
Electrolytic treatment of water
Solids precipitate out of an aqueous solution after it has passed through a negatively charged tubular steel electrode and then through the annular space between the negatively charged electrode...
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4304648 |
Process for the treatment of liquids by oligodynamy and particularly the treatment of sullage waters
The invention concerns a method of treating liquids by means of oligodynamy, particularly of sullage waters. The waters are passed between metal electrodes supplied with electric current before...
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4304647 |
Arrangement for the purification of liquids by means of anodic oxidation
An apparatus and method for the purification of liquids utilizing anodic oxidation wherein the electrodes are composed of an austenitic chromium-nickel-molybdenum steel which contains about 0.07%...
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4280887 |
Method of regenerating ammoniacal etching solutions useful for etching metallic copper
Ammoniacal etching solutions used for etching metallic copper, such as in etching galvanized printed circuits, are regenerated by electrolytically contacting a spent etching solution with a metal,...
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4271028 |
Process for purifying effluents containing proteins
A process for purifying effluents which contain proteins, which process comprises treating said effluents with a basic polymer compound and separating the flocks that are formed from the effluent.
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4212724 |
Oxidation and coagulation for aquarium applications
The invention relates to an oxidation and coagulation apparatus and method especially suitable for use with aquariums (especially salt-water aquariums). Water is withdrawn from the aquarium by a...
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4188272 |
Electrical chemical process for the removal of hexavalent chromium from aqueous medium
The invention relates to a method for improving the capacity of an electrochemical production unit used for removal of hexavalent chromium from aqueous medium by controlling the pH of the aqueous...
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4160711 |
Assembly of electrodes
An assembly of electrodes suitably for use in electrochemical processes, comprising a plurality of elongated conductive elements as electrodes arranged substantially in parallel in a vertical plane...
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