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Electrochemical apparatus and method for purification of fluid

An electrochemical and fluid technology, applied in chemical instruments and methods, electrochemical water/sewage treatment, chemical/physical/physical-chemical processes of applied energy, etc., can solve problems such as not considering relationships

Inactive Publication Date: 2008-09-03
SONY DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No consideration of these effects in relation to purified fluids such as wastewater

Method used

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  • Electrochemical apparatus and method for purification of fluid
  • Electrochemical apparatus and method for purification of fluid
  • Electrochemical apparatus and method for purification of fluid

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Embodiment Construction

[0102] refer to figure 1 , the electrochemical cell of a device according to an embodiment of the invention, generally referred to as 1 , comprises a cathode 3 , an anode 5 and a polyelectrolyte 7 sandwiched between the cathode 3 and anode 5 . Cathode 3 and anode 5 are connected or connectable to a power source (not shown).

[0103] The electrodes 3 and 5 are porous and can be made of an electrically conductive material, that is to say surface-modified, for example by silanization, for attachment, preferably by covalent attachment, of surface-modifying substances such as catalysts. These requirements are met by various materials, especially carbon-based materials such as glassy carbon, and metal oxides. The electrodes 3 and 5 may also consist of a mixture or composite of conductive and non-conductive materials, at least one of which is surface-modified in order to attach said surface-modifying substance.

[0104] Anode 5 contains a catalyst that catalyzes the oxidation of wa...

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PUM

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Abstract

The invention relates to an apparatus for purifying fluids comprising at least one electrochemical cell having a cathode (3), an anode (5) and an electrolyte (7), said cathode (3) comprising a metal complex, ML, where M represents a metal and L represents an organic or inorganic ligand, said complex being capable of forming the hydroxyl radical by a reaction wherein the metal in the complex is oxidised and acquires an additional positive charge, said anode (5) creating positive ions and electrons, said electrolyte (7) allowing the transfer of a positive charges, said cathode being arranged such that the fluid to be purified can come into contact with the metal complex on the cathode. The invention also provides a related electrode and a related electrochemical cell as well as a corresponding method for purifying fluids.

Description

technical field [0001] The present invention relates to an electrochemical method and device for purifying fluids, in particular waste water or air, for example for purification and / or disinfection purposes. Background technique [0002] Current methods of treating organic, inorganic and microbial pollutants in air, water and soil include so-called "advanced oxidation processes". These advanced oxidation processes produce highly reactive oxidants that can readily convert organic waste to carbon dioxide and water while mineralizing the inorganic components for easy removal. With this in mind, one of the agents is the OH group, which can be generated by the Fenton reaction: [0003] Fe 2+ +H 2 o 2 +H + → Fe 3+ +·OH+H 2 O.(1) [0004] Fe 3+ The ions are then reduced by hydrogen peroxide through the following reaction: [0005] Fe 3+ +H 2 o 2 → Fe 2+ +·O 2 H+H + (2). [0006] It was previously proposed to use method (1) to provide H 2 o 2 and Fe 2+ different ...

Claims

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Application Information

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IPC IPC(8): C25B1/30C25B11/06C02F1/46B01J19/08C02F1/461C02F1/467C25B11/04
CPCC02F1/46109C02F2001/46142C02F2201/46115C02F2201/46195C02F2001/46161C02F2305/026C02F1/4672C02F2001/46138C02F2201/4619Y02W10/37
Inventor W·福德J·维泽尔斯T·沃斯梅耶
Owner SONY DEUT GMBH