GB1409419A - Electrolytic process for rendering inocuous a polluting substance - Google Patents

Electrolytic process for rendering inocuous a polluting substance

Info

Publication number
GB1409419A
GB1409419A GB4320772A GB4320772A GB1409419A GB 1409419 A GB1409419 A GB 1409419A GB 4320772 A GB4320772 A GB 4320772A GB 4320772 A GB4320772 A GB 4320772A GB 1409419 A GB1409419 A GB 1409419A
Authority
GB
United Kingdom
Prior art keywords
conductive elements
tank
innocuous
passes
reaction products
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
Application number
GB4320772A
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.)
Dart Industries Inc
Original Assignee
Dart Industries Inc
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 Dart Industries Inc filed Critical Dart Industries Inc
Publication of GB1409419A publication Critical patent/GB1409419A/en
Expired legal-status Critical Current

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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • 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
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • 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
    • C02F2001/46128—Bipolar electrodes
    • 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
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates

Landscapes

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

Abstract

1409419 Electrolytically rendering a polluting substance innocuous DART INDUSTRIES Inc 18 Sept 1972 43207/72 Heading C7B A polluting substance (such as CN<SP>-</SP>, CRO 3, NO 2 <SP>-</SP> or amine) contained in an aqueous solution is rendered innocuous in an electrolytic cell having between an anode and a cathode an aggregate of discrete packing elements at least some of which are non-metallic electrically conductive elements (e.g. of carbon). In the process, the polluting substance is reacted either with a compound which is dissolved in the solution or with electrolytic reaction products of the compound. Innocuous reaction products are evolved at one electrode. Any noxious reaction products evolved at the counter electrode are prevented (e.g. by a permeable wall) from entering the main body of the electrolyte. Gas is generated in the main body of the electrolyte and effects cleaning of the surfaces of the electrically conductive elements. Specified polluting substances together with dissolved compounds (indicated in brackets) which are used for reaction therewith are CN<SP>-</SP>(NaCl); CrO 3 (FeSO 4 ); NaNO 2 (NaCl); and amine, such as methylethyl-, or isopropyl-hydroxylamine, (alkali metal chloride) As shown, metal strip 10 passes through a treatment tank A (e.g. a cyanide, chromic acid or nitrous salt conditioning bath), wash tank B and water rinsing tank C. Polluted water from the wash tank B passes to electrolytic cell D, is purified, passes to a settling tank E and is pumped back to the wash tank B. The electrolytic cell contains working electrodes 26 (e.g. of graphite), counter electrodes 25 (e.g. of graphite) isolated by porous walls 27, non-metallic conductive elements 30 (e.g. of carbon), and non-conductive elements 31 (e.g. of resin, ceramic or glass). The porous walls may be permselective or neutral, e.g. of sulphonated styrene, ceramic, plastics or cellulose acetate.
GB4320772A 1972-09-15 1972-09-18 Electrolytic process for rendering inocuous a polluting substance Expired GB1409419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233387A FR2199482B1 (en) 1972-09-15 1972-09-15

Publications (1)

Publication Number Publication Date
GB1409419A true GB1409419A (en) 1975-10-08

Family

ID=9104556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4320772A Expired GB1409419A (en) 1972-09-15 1972-09-18 Electrolytic process for rendering inocuous a polluting substance

Country Status (5)

Country Link
CA (1) CA988052A (en)
CH (1) CH585582A5 (en)
DE (1) DE2244244C3 (en)
FR (1) FR2199482B1 (en)
GB (1) GB1409419A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198083A (en) * 1989-01-11 1993-03-30 United Kingdom Atomic Energy Authority Electrochemical cell and method of treating waste material therewith
US5376240A (en) * 1991-11-04 1994-12-27 Olin Corporation Process for the removal of oxynitrogen species for aqueous solutions
EP1051540A1 (en) * 1998-02-04 2000-11-15 John E. Stauffer A neural network packing
US6258250B1 (en) 1996-10-15 2001-07-10 Andreas Weissenbacher Method to reduce or prevent scaling

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL49852A (en) * 1975-07-16 1980-07-31 Einhell Hans Gmbh Process and electrolytic cell for the treatment of water
IT1114820B (en) * 1977-06-30 1986-01-27 Oronzio De Nora Impianti ELECTROLYTIC MONOPOLAR MEMBRANE CELL
DE3540973A1 (en) * 1984-12-24 1987-05-21 Hoelter Heinz Simultaneously separating off SO2 and NOx from flue gases which are highly loaded with NOx and HCl
DE3807622C1 (en) * 1988-03-09 1989-06-01 Deutsche Carbone Ag, 6000 Frankfurt, De Process for the electrochemical breakdown of halogenated hydrocarbons or other not readily biodegradable halogenated compounds

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616356A (en) * 1967-09-18 1971-10-26 Clarence H Roy Electrolysis in a particulate carbon packing
GB1367883A (en) * 1970-09-28 1974-09-25 Nat Res Dev Electrochemical cells of the packed bed type

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198083A (en) * 1989-01-11 1993-03-30 United Kingdom Atomic Energy Authority Electrochemical cell and method of treating waste material therewith
US5376240A (en) * 1991-11-04 1994-12-27 Olin Corporation Process for the removal of oxynitrogen species for aqueous solutions
US6258250B1 (en) 1996-10-15 2001-07-10 Andreas Weissenbacher Method to reduce or prevent scaling
EP1051540A1 (en) * 1998-02-04 2000-11-15 John E. Stauffer A neural network packing
EP1051540A4 (en) * 1998-02-04 2001-11-14 John E Stauffer A neural network packing

Also Published As

Publication number Publication date
FR2199482A1 (en) 1974-04-12
FR2199482B1 (en) 1979-03-16
DE2244244A1 (en) 1974-03-14
DE2244244B2 (en) 1980-07-17
CH585582A5 (en) 1977-03-15
DE2244244C3 (en) 1981-07-02
CA988052A (en) 1976-04-27

Similar Documents

Publication Publication Date Title
US3764499A (en) Process for removal of contaminants from wastes
FR2387910A1 (en) PURIFICATION OF AN AQUEOUS SODIUM CHLORIDE SOLUTION
GB787977A (en) Electrolysis process
JPH09268395A (en) Electrode for electrolysis and electrolytic cell using this electrode
JPS5573900A (en) Method and apparatus for regenerating etching liquid containing cuppic *2* chloride and * or ferric *3* chloride in electrolysis tank
US2773025A (en) Destroying cyanides in aqueous cyanide solutions
GB1409419A (en) Electrolytic process for rendering inocuous a polluting substance
EP0210769B1 (en) Removal of arsenic from acids
Raijola et al. Low valent aluminum as a product of anodic oxidation in aqueous solution
US3347761A (en) Electropurification of salt solutions
GB1467862A (en) Method of and an apparatus for disinfecting liquids by anodic oxidation with a silver anode
US4048044A (en) Water-purifying apparatus
FI82078C (en) ELEKTROKEMISKT AVLAEGSNANDE AV HYPOKLORITER UR KLORATCELLOESNINGAR.
GB1385646A (en) Process for the preparation of 3,5-diiodo-4-hydroxy-benzonitrile and 3-iodo-4-hydroxy-5-nitro-benzonitrile
US4971675A (en) Electrolyzer for purification of fluids
JP3615814B2 (en) Method and apparatus for removing nitrate and / or nitrite nitrogen
JPH08296076A (en) Production of aqueous solution of hydrogen peroxide and device therefor
SE7514274L (en) PROCEDURE FOR LOCATING LIFE FOR ELECTROLYSIS ANODES
US3647653A (en) Purification of brine
Tanaka et al. Polarographic Behaviors and Potentiostatic Determination of Kinetic Parameters for the Electrode Reaction of trans-1, 2-Cyclohexanediaminetetraacetatochromate (III) Complexes
Goodridge et al. The oxidation of benzene using anodically generated argentic silver ions
KR870000453A (en) Method for preparing potassium peroxydiphosphate by electrolysis
SU380106A1 (en)
GB1051597A (en)
GB2103245A (en) Process for the electrolytic production of ozone

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee