RU94045266A - Способ электрохимического восстановления нитрата - Google Patents

Способ электрохимического восстановления нитрата

Info

Publication number
RU94045266A
RU94045266A RU94045266/25A RU94045266A RU94045266A RU 94045266 A RU94045266 A RU 94045266A RU 94045266/25 A RU94045266/25 A RU 94045266/25A RU 94045266 A RU94045266 A RU 94045266A RU 94045266 A RU94045266 A RU 94045266A
Authority
RU
Russia
Prior art keywords
nitrate
cathode
electrochemical reduction
cell
reduction
Prior art date
Application number
RU94045266/25A
Other languages
English (en)
Inventor
Фенк Бернд
De]
Хафтендорн Манфред
Ханевальд Дитер
Фишвассер Клаус
Райхерт Йоханнес
Ранер Дитмар
Исбернер Катрин
Оттер Катрин
Зайбт Фридер
Original Assignee
Ханевальд ГмбХ (DE)
Ханевальд ГмбХ
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.)
Filing date
Publication date
Application filed by Ханевальд ГмбХ (DE), Ханевальд ГмбХ filed Critical Ханевальд ГмбХ (DE)
Publication of RU94045266A publication Critical patent/RU94045266A/ru

Links

Classifications

    • 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
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • 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
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
    • 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
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating
    • C02F2001/46142—Catalytic coating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Изобретение относится к способу каталитического электрохимического восстановления нитрата, прежде всего до элементарного азота, в водных растворах на катоде. Цель изобретения заключается в том, чтобы денитрировать путем этого восстановления нитрата также концентрированные водные растворы, содержащие соли. При этом водный раствор подают в катодное пространство ячейки электролизера, в которой катодное и анодное пространства отделены друг от друга мембраной катионообменника, и создают напряжение в этой области электролизера.

Claims (1)

  1. Изобретение относится к способу каталитического электрохимического восстановления нитрата, прежде всего до элементарного азота, в водных растворах на катоде. Цель изобретения заключается в том, чтобы денитрировать путем этого восстановления нитрата также концентрированные водные растворы, содержащие соли. При этом водный раствор подают в катодное пространство ячейки электролизера, в которой катодное и анодное пространства отделены друг от друга мембраной катионообменника, и создают напряжение в этой области электролизера.
RU94045266/25A 1993-12-24 1994-12-23 Способ электрохимического восстановления нитрата RU94045266A (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4344613.2 1993-12-24
DE19934344613 DE4344613C2 (de) 1993-12-24 1993-12-24 Verfahren zur katalytisch-elektrochemischen Reduktion nitrathaltiger Lösungen sowie Verwendung der behandelten wäßrigen Lösungen als Regeneriermittel für Ionenaustauscher

Publications (1)

Publication Number Publication Date
RU94045266A true RU94045266A (ru) 1996-09-27

Family

ID=6506322

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94045266/25A RU94045266A (ru) 1993-12-24 1994-12-23 Способ электрохимического восстановления нитрата

Country Status (7)

Country Link
EP (1) EP0659692A1 (ru)
CZ (1) CZ134094A3 (ru)
DE (1) DE4344613C2 (ru)
HU (1) HUT71990A (ru)
PL (1) PL306397A1 (ru)
RU (1) RU94045266A (ru)
SK (1) SK82994A3 (ru)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512955C2 (de) * 1995-04-10 1998-09-10 Ernst A Prof Dr Stadlbauer Wasseraufbereitungsverfahren zur reduktiven Umwandlung von Nitrat und Nitrit in elementaren Stickstoff
DE19517652A1 (de) * 1995-05-17 1996-11-21 Grundfos As Verfahren zur Verminderung des Nitrat- und/oder Nitritgehaltes im Wasser
GB9603741D0 (en) * 1996-02-22 1996-04-24 Lin Mei Treatment of water by electrolysis
DE19624023B9 (de) * 1996-06-17 2009-05-20 Verein für Kernverfahrenstechnik und Analytik Rossendorf e.V. Verfahren zur Sanierung saurer, eisenhaltiger Tagebaurestlochgewässer
FR2754251B1 (fr) * 1996-10-03 1998-11-27 Step Installation et procede pour le traitement de fluides aqueux
AU4398399A (en) * 1998-11-09 2000-05-29 Hee Jung Kim Electrochemical treatment system for hard-resoluble waste water
GB2348209B (en) * 1999-03-24 2001-05-09 Ionex Ltd Water purification process
US6645366B2 (en) 2000-11-01 2003-11-11 Sanyo Electric Co., Ltd. Waste water treatment device
FI115904B (fi) 2002-01-25 2005-08-15 Bcde Group Waste Man Ltd Oy Menetelmä ja laite epäpuhtauksien poistamiseksi jätevedestä elektroflotaatiolla
JP3691461B2 (ja) * 2002-02-13 2005-09-07 三洋電機株式会社 水浄化システム及び水浄化方法
US7300591B2 (en) 2002-04-18 2007-11-27 Sanyo Electronic Co., Ltd. Wastewater treating method and wastewater treating apparatus
GB2449655A (en) * 2007-05-30 2008-12-03 Jlj Engineering Sercices Ltd An electrochemical reactor for aqueous solutions with high electrical resistance
DE102009026179A1 (de) * 2009-07-15 2011-01-27 Haas, Rüdiger, Dipl.-Geol. Bioelektrolytische Denitrifikation
US9560839B2 (en) 2010-11-17 2017-02-07 Technion Research And Development Foundation Ltd. Physico-chemical process for removal of nitrogen species from recirculated aquaculture systems
WO2017153986A1 (en) 2016-03-08 2017-09-14 Technion Research & Development Foundation Limited Disinfection and removal of nitrogen species from saline aquaculture systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675715A5 (ru) * 1988-10-21 1990-10-31 Asea Brown Boveri
DE3838181A1 (de) * 1988-11-10 1990-05-23 Linde Ag Verfahren und vorrichtung zur entfernung von stickstoffverbindungen aus waessrigen loesungen
GB2267290A (en) * 1992-05-27 1993-12-01 Electricity Ass Tech A Process for the electrolytic destruction of nitrate in aqueous liquids

Also Published As

Publication number Publication date
CZ134094A3 (en) 1995-08-16
SK82994A3 (en) 1995-07-11
DE4344613C2 (de) 1997-07-17
HU9403756D0 (en) 1995-03-28
HUT71990A (en) 1996-03-28
PL306397A1 (en) 1995-06-26
EP0659692A1 (de) 1995-06-28
DE4344613A1 (de) 1995-06-29

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