FR3085969B1 - PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE - Google Patents

PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE Download PDF

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Publication number
FR3085969B1
FR3085969B1 FR1858238A FR1858238A FR3085969B1 FR 3085969 B1 FR3085969 B1 FR 3085969B1 FR 1858238 A FR1858238 A FR 1858238A FR 1858238 A FR1858238 A FR 1858238A FR 3085969 B1 FR3085969 B1 FR 3085969B1
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FR
France
Prior art keywords
bioanode
bio
anode
electrode
reference electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR1858238A
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French (fr)
Other versions
FR3085969A1 (en
Inventor
Alain Bergel
Elise Blanchet
Theodore Bouchez
Benjamin Erable
Luc Etcheverry
Jianghao Tian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre National de la Recherche Scientifique CNRS
Institut National de Recherche en Sciences et Technologies Pour Lenvironnement et lAgriculture IRSTEA
Original Assignee
Centre National de la Recherche Scientifique CNRS
Institut National de Recherche en Sciences et Technologies Pour Lenvironnement et lAgriculture IRSTEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Centre National de la Recherche Scientifique CNRS, Institut National de Recherche en Sciences et Technologies Pour Lenvironnement et lAgriculture IRSTEA filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR1858238A priority Critical patent/FR3085969B1/en
Priority to PCT/FR2019/052109 priority patent/WO2020053528A1/en
Publication of FR3085969A1 publication Critical patent/FR3085969A1/en
Application granted granted Critical
Publication of FR3085969B1 publication Critical patent/FR3085969B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/005—Combined electrochemical biological processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46119—Cleaning the electrodes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Metallurgy (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Procédé de régénération d'une électrode de travail d'un dispositif électrochimique fonctionnant en mode électrolyseur comportant une électrode de travail (bio-anode) recouverte d'un biofilm, une cathode et éventuellement une électrode de référence, une différence de potentiel (ddp) nominale positive étant appliquée, en fonctionnement nominal, soit entre la bio-anode et la cathode, soit entre la bio-anode et l'électrode de référence, caractérisé en ce qu'il comprend soit une diminution de la ddp d'au moins 10 % de ddp appliquée entre la bio-anode à régénérer et la cathode, en l'absence d'électrode de référence, soit une diminution du potentiel de travail imposé à l'électrode de travail (la bio-anode) à régénérer par rapport à l'électrode de référence d'au moins 0,05 V/ESH, permettant de restaurer le fonctionnement nominal de l'électrolyseur. La régénération peut être poursuivie par la production de H2 à la surface de la bio-anode en changeant sa polarité par insertion d'une contre-électrode dans le compartiment anodique de la bio-anode.Process for regenerating a working electrode of an electrochemical device operating in electrolyser mode comprising a working electrode (bio-anode) covered with a biofilm, a cathode and possibly a reference electrode, a potential difference (ddp) nominal positive being applied, in nominal operation, either between the bioanode and the cathode, or between the bioanode and the reference electrode, characterized in that it comprises either a decrease in the ddp of at least 10 % ddp applied between the bio-anode to be regenerated and the cathode, in the absence of a reference electrode, i.e. a decrease in the working potential imposed on the working electrode (the bio-anode) to be regenerated compared to the reference electrode of at least 0.05 V / ESH, allowing the nominal operation of the electrolyser to be restored. Regeneration can be continued by the production of H2 at the surface of the bioanode by changing its polarity by inserting a counter electrode into the anode compartment of the bioanode.

FR1858238A 2018-09-13 2018-09-13 PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE Expired - Fee Related FR3085969B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1858238A FR3085969B1 (en) 2018-09-13 2018-09-13 PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE
PCT/FR2019/052109 WO2020053528A1 (en) 2018-09-13 2019-09-12 Method for in situ regeneration of a bio-anode of a bio-electrochemical synthesis device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1858238A FR3085969B1 (en) 2018-09-13 2018-09-13 PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE
FR1858238 2018-09-13

Publications (2)

Publication Number Publication Date
FR3085969A1 FR3085969A1 (en) 2020-03-20
FR3085969B1 true FR3085969B1 (en) 2020-09-11

Family

ID=65243728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1858238A Expired - Fee Related FR3085969B1 (en) 2018-09-13 2018-09-13 PROCESS FOR IN-SITU REGENERATION OF A BIOANODE OF A BIO-ELECTROCHEMICAL SYNTHESIS DEVICE

Country Status (2)

Country Link
FR (1) FR3085969B1 (en)
WO (1) WO2020053528A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115557595B (en) * 2022-10-10 2024-05-14 浙江工商大学 Method for biologically strengthening treatment of high-salt wastewater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924241B2 (en) 1978-08-11 1984-06-08 マツダ株式会社 Combination of side housing and side seal in rotary piston engine
GB2033428B (en) * 1978-08-15 1982-11-03 Nat Res Dev Enzymatic processes
JPH0416746A (en) 1990-05-11 1992-01-21 Meidensha Corp Bubble-cleaning device
US7138046B2 (en) * 1996-06-06 2006-11-21 World Hydrogen Energy Llc Process for production of hydrogen from anaerobically decomposed organic materials
FR2843490B1 (en) * 2002-08-06 2004-09-03 Centre Nat Rech Scient FUEL CELL USING BIOFILMS AS A CATALYTIC REACTION CATALYST AND / OR ANODIC REACTION
US20150355135A1 (en) 2013-01-10 2015-12-10 Vantix Holdings Limited Electrochemical detection system air washing
FR3026413B1 (en) 2014-09-30 2023-05-12 Institut National De Recherche En Sciences Et Tech Pour Lenvironnement Et Lagriculture Irstea METHOD AND DEVICE FOR REGULATING THE ACTIVITY OF A BIOELECTROCHEMICAL SYSTEM COMPRISING BOTH A BIOANODE AND A BIOCATHODE

Also Published As

Publication number Publication date
WO2020053528A1 (en) 2020-03-19
FR3085969A1 (en) 2020-03-20

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