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1. WO2014085924 - EFFICIENT TREATMENT OF WASTEWATER USING ELECTROCHEMICAL CELL

Publication Number WO/2014/085924
Publication Date 12.06.2014
International Application No. PCT/CA2013/050922
International Filing Date 02.12.2013
IPC
C02F 1/461 2006.01
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
CPC
C02F 1/46104
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
46104Devices therefor; Their operating or servicing
C02F 1/46176
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
46104Devices therefor; Their operating or servicing
46176Galvanic cells
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
C02F 2001/46142
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
46104Devices therefor; Their operating or servicing
46109Electrodes
46133characterised by the material
46138Electrodes comprising a substrate and a coating
46142Catalytic coating
C02F 2001/46166
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
46104Devices therefor; Their operating or servicing
46109Electrodes
46152characterised by the shape or form
46157Perforated or foraminous electrodes
46161Porous electrodes
46166Gas diffusion electrodes
C02F 2201/46115
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2201Apparatus for treatment of water, waste water or sewage
46Apparatus for electrochemical processes
461Electrolysis apparatus
46105Details relating to the electrolytic devices
46115Electrolytic cell with membranes or diaphragms
Applicants
  • AXINE WATER TECHNOLOGIES INC. [CA]/[CA]
Inventors
  • LEGZDINS, Colleen
Agents
  • WAINWRIGHT, David
Priority Data
61/732,92703.12.2012US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EFFICIENT TREATMENT OF WASTEWATER USING ELECTROCHEMICAL CELL
(FR) TRAITEMENT EFFICACE D'EAU RÉSIDUAIRE UTILISANT UNE CELLULE ÉLECTROCHIMIQUE
Abstract
(EN)
An efficient method and system for the electrochemical treatment of waste water comprising organic and/or inorganic pollutants is disclosed. The system comprises at least first and second solid polymer electrolyte electrolytic cell stacks in which each cell comprises a solid polymer, proton exchange membrane electrolyte operating without catholyte or other supporting electrolyte. The first and second stacks differ either in construction or operating condition. The cell stack design and operating conditions chosen provide for significantly greater operating efficiency.
(FR)
L'invention porte sur un procédé et un système efficaces pour le traitement électrochimique d'eau résiduaire comprenant des polluants organiques et/ou inorganiques. Le système comprend au moins des premier et second assemblages de cellules électrolytiques à électrolyte polymère solide dans lesquels chaque cellule comprend un polymère solide, un électrolyte sous forme de membrane échangeuse de protons fonctionnant sans catholyte ou autre électrolyte support. Les premier et second assemblages diffèrent soit en termes de structure soit en termes de conditions de fonctionnement. La conception des assemblages de cellules et les conditions de fonctionnement choisies assurent une efficacité de fonctionnement considérablement plus grande.
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