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1. WO2004024634 - MEDIATED ELECTROCHEMICAL OXIDATION OF INORGANIC MATERIALS

Publication Number WO/2004/024634
Publication Date 25.03.2004
International Application No. PCT/US2003/028200
International Filing Date 10.09.2003
IPC
A61L 2/03 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
03Electric current, e.g. electrolysis
A61L 11/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
11Disinfection or sterilising methods specially adapted for refuse
C22B 7/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
CPC
A61L 11/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
11Methods specially adapted for refuse
A61L 2/025
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
025Ultrasonics
A61L 2/035
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
03Electric current
035Electrolysis
A61L 2/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02using physical phenomena
08Radiation
10Ultra-violet radiation
A61L 2/24
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
24Apparatus using programmed or automatic operation
C02F 1/4672
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
46by electrochemical methods
461by electrolysis
467by electrochemical disinfection; by electrooxydation or by electroreduction
4672by electrooxydation
Applicants
  • THE C & M GROUP, LLC [US]/[US] (AllExceptUS)
  • CARSON, Roger, W. [US]/[US] (UsOnly)
  • BREMER, Bruce, W. [US]/[US] (UsOnly)
Inventors
  • CARSON, Roger, W.
  • BREMER, Bruce, W.
Agents
  • WRAY, James, C.
Priority Data
60/409,20210.09.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MEDIATED ELECTROCHEMICAL OXIDATION OF INORGANIC MATERIALS
(FR) OXYDATION ELECTROCHIMIQUE INDUITE DE SUBSTANCES INORGANIQUES
Abstract
(EN)
A mediated electrochemical oxidation process and apparatus for the use of mediated electrochemical oxidation (MEO) for the oxidation, conversion/recovery, and decontamination (such as cleaning equipment and containers, etc.) of all previously defined inorganic solid, liquid, and gases where higher oxidation states exist which includes, but is not limited to, halogenated inorganic compounds (except fluorinated ), inorganic pesticides and herbicides, inorganic fertilizers, carbon residues, inorganic carbon compounds, mineral formations, mining tailings, inorganic salts, metals and metal compounds, etc.; and combined waste (e.g. a mixture of any of the foregoing with each other or other non-­inorganic materials) henceforth collectively referred to as inorganic waste. The inorganic materials are introduced into an apparatus for contacting the inorganic materials with an electrolyte containing the oxidized form of one or more reversible redox couples, at least one of which is produced electrochemically by anodic oxidation at the anode of an electrochemical cell. The oxidized forms of any other redox couples present are produced either by similar anodic oxidation or reaction with the oxidized form of other redox couples present and capable of affecting the required redox reaction. The oxidized species of the redox couples oxidize the inorganic waste molecules and are themselves converted to their reduced form, whereupon they are reoxidized by either of the aforementioned mechanisms and the redox cycle continues until all oxidizable waste species, including intermediate reaction products, have undergone the desired degree of oxidation. The entire process takes place at temperatures slightly above 0°C slightly below the boiling point of the electrolyte (which is normally 100°C), thereby avoiding the formation of either volatile inorganic or organic compounds. The oxidation process may be enhanced by the addition of reaction enhancements, such as: ultrasonic energy and /or ultraviolet radiation.
(FR)
Cette invention concerne un procédé d'oxydation électrochimique induite et un appareil permettant d'utiliser l'oxydation électrochimique induite (MEO) pour l'oxydation, la conversion/récupération et la décontamination (par exemple d'équipements de nettoyage ou de contenants) de tous les solides, liquides et gaz inorganiques préalablement définis pour lesquels les états d'oxydation supérieurs existent et qui comprennent notamment des composés inorganiques halogénés (sauf fluorés), des pesticides et herbicides inorganiques, des engrais inorganiques, des résidus de carbone, des composés carbonés inorganiques, des formations minérales, des résidus miniers, des sels inorganiques, des métaux et des composés métalliques, etc. ainsi que des déchets combinés (par exemple un mélange composé de n'importe lesquelles des substances précédemment citées ou d'autres substances non inorganiques) appelés dans leur ensemble déchets inorganiques. Les substances inorganiques sont introduites dans un appareil permettant de mettre en contact les substances inorganiques avec un électrolyte contenant la forme oxydée d'un ou plusieurs couples redox réversibles dont au moins un est produit électrochimiquement par oxydation anodique au niveau de l'anode d'une cellule électrochimique. Les formes oxydées de tout autre couple redox présent sont produites soit par oxydation anodique semblable, soit par réaction avec la forme oxydée d'autres couples redox présents et pouvant affecter la réaction redox requise. Les espèces oxydées des couples redox oxydent les molécules de déchets inorganiques et sont elles-mêmes converties en leur forme réduite, après quoi elles sont ré-oxydées au moyen d'un des mécanismes susmentionnés et le cycle redox est poursuivi jusqu'à ce que toutes les espèces oxydables, y compris les produits de réaction intermédiaires, aient subi le degré d'oxydation voulu. L'ensemble du processus est réalisé à des températures légèrement supérieures à 0 °C légèrement en dessous du point d'ébullition de l'électrolyte (qui est normalement de 100°C), ce qui permet d'éviter la formation de composés inorganiques volatils ou de composés organiques volatils. Ce procédé d'oxydation peut être renforcé par l'ajout de renforçateurs de réaction, tels que l'énergie ultrasonore et/ou un rayonnement ultraviolet.
Also published as
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