Abstract:
An electrode assembly (2) for use in an electrochemical cell is provided, the electrode assembly (2) comprising a substrate (4) comprising a plurality of substrate lands (10), each land (10) having a working surface, the electrode assembly (2) further comprising a layer of diamond (12) on the working surface of the land (10). An electrochemical cell for use in the electrolysis of water to produce ozone is also provided, the electrochemical cell comprising a first electrode assembly as claimed in any preceding claim and a first fluid conduit for bringing fluid into contact with the layer of diamond of the first electrode; a second electrode assembly and a second fluid conduit for bringing fluid into contact with the second electrode; a cation exchange membrane extending between the first electrode assembly and the second electrode assembly and separating the first fluid conduit from the second fluid conduit; and an electrical supply system for providing an electric current between the first and second electrode assemblies.
Abstract:
An apparatus for the selective production of electrolyzed water is provided, wherein the apparatus allows for the production and discharge of either electrolyzed acidic water or electrolyzed basic water to be independently without the corresponding production and discharge of the other. In certain embodiments, the present invention can provide a low chloride electrolyzed acidic water or a low chloride electrolyzed basic water.
Abstract:
Systems and methods for removing hydrogen peroxide from water purification systems are provided. In a general embodiment, the present disclosure provides a water purification system including a water treatment unit, an electrodeionization unit and a hydrogen peroxide decomposition catalyst in fluid connection with the electrodeionization unit. The water purification system can be fluidly connected to a renal treatment system.
Abstract:
La présente invention concerne un procédé de gestion de la fréquence d' inversion de la polarité d' au moins un couple d'électrodes au sein d'un réacteur électrochimique pour 1 ' électrolyse de l'eau, dans lequel : - on constate au moins une fluctuation du potentiel d'hydrogène (pH) de l'eau, en effectuant une comparaison entre le pH mesuré à un instant donné par rapport à une mesure antérieure ou une valeur initiale déterminée; - on injecte dans l'eau une quantité d'agent de traitement, sous forme d'une base ou d'un acide, en fonction de ladite fluctuation constatée du pH pour réguler le pH autour d'un point de consigne défini; - on calcule la fréquence d' inversion de la polarité desdites électrodes en fonction de la température de l'eau, de ladite fluctuation de pH et de ladite quantité d'agent injectée; caractérisé en ce qu'il consiste à : - estimer le titre alcalimétrique complet (TAC) en fonction de ladite quantité injectée et de ladite fluctuation du pH, pour maintenir le TAC à un niveau minimum; et - à anticiper les fluctuations de pH par rapport aux précédentes estimations du volume d'agent de traitement à injecter pour stabiliser ledit pH à un point de consigne, et réajuster l'estimation du TAC et le calcul de ladite fréquence d'inversion de polarité.
Abstract:
The present invention involves a multi-chamber electrolytic cell, an automated plant (system) containing at least one electrolytic cell, and methods of cell use. The invention reduces the ratio of (No. Electrodes) / (No. of Electrolytic Chambers) in the cell, thus making the cell smaller, more reliable, and less expensive to manufacture. One invented method of use of the electrolytic cell is to make disinfectant for decontaminating waste water. Another novel method of use is to produce potable water. An electrolytic plant containing at least one electrolytic cell is disclosed for automatically monitoring and controlling the various parameters of the electrolytic process to produce a desired solution at the output of each electrolytic cell."
Abstract:
A method for treating a wastewater stream containing organic material or inorganic material comprising passing the wastewater stream to an anode or a cathode of a bioelectrochemical system to thereby alter the pH of the wastewater stream to: a) reduce the pH of the stream passed to the anode to minimise or suppress precipitation of dissolved cations; or b) increase the pH of the stream passed to the cathode to produce an alkaline stream; or c) reduce the pH of the stream passed to the anode to produce an acid containing stream. In one embodiment, a caustic soda solution is produced at the cathode and recovered for storage and subsequent use.
Abstract:
A process for separating organic compounds from an aqueous medium, said process comprising: adding surfactant to the aqueous medium, such that the organic compounds interact with the surfactant to form charged or polar entities; passing the aqueous medium between charged electrodes, whereby the charged or polar entities are electrosorbed onto the electrodes.
Abstract:
Die Erfindung betrifft ein Verfahren zur Konditionierung einer bei der nasschemischen Reinigung konventioneller oder nukleartechnischer Anlagen anfallenden, wenigstens eine organische Substanz und wenigstens ein Metall in ionischer Form enthaltenden Abfalllösung, bei dem zumindest ein Teil der organischen Substanz durch elektrochemische Behandlung oder UV- Bestrahlung der Abfalllösung abgebaut wird und das wenigstens eine Metall durch Zugabe von Phosphorsäure ausgefällt und der entstandene Phosphat-Niederschlag aus der Abfalllösung entfernt wird.
Abstract:
An electrolysis cell (10) is provided, which includes an inlet (12, 63, 65), an outlet (36, 63, 65), and coaxial, cylindrical inner and outer electrodes (20, 22). A cylindrical ion- selective membrane (18) is located between the inner and outer electrodes (20, 22) and forms respective first and second electrolysis reaction chambers (14, 16) on opposing sides of the membrane (18). Fluid flow paths along the first and second chambers (14, 16) join together as a combined inlet flow path (70) through the inlet (12, 63, 65) and a combined outlet flow path (72) through the outlet (36, 63, 65).