FR2219121A1 - Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds - Google Patents

Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds

Info

Publication number
FR2219121A1
FR2219121A1 FR7306697A FR7306697A FR2219121A1 FR 2219121 A1 FR2219121 A1 FR 2219121A1 FR 7306697 A FR7306697 A FR 7306697A FR 7306697 A FR7306697 A FR 7306697A FR 2219121 A1 FR2219121 A1 FR 2219121A1
Authority
FR
France
Prior art keywords
bed
anionic
cationic
cyanide
weak
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.)
Granted
Application number
FR7306697A
Other languages
French (fr)
Other versions
FR2219121B1 (en
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.)
Suez International SAS
Original Assignee
Degremont SA
Degremont Societe Generale dEpuration de dAssainissement
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 Degremont SA, Degremont Societe Generale dEpuration de dAssainissement filed Critical Degremont SA
Priority to FR7306697A priority Critical patent/FR2219121A1/en
Publication of FR2219121A1 publication Critical patent/FR2219121A1/en
Application granted granted Critical
Publication of FR2219121B1 publication Critical patent/FR2219121B1/fr
Granted 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

The effluent is treated by (1) ion exchange in an acid cationic resin bed to fix cations and in a weak basic anionic bed to fix complex anionic cyanides and a strong basic anionic bed to fix CN, (2) dissolving an oxidising agent for the cyanide deposit in the cationic bed (3) regenerating the resins and destroying cyanides by strongly basic oxidation. The oxidising agent is a persulphate, monopersulphuric acid, H2O2 or Javel water. The use of oxidising agent in (2) prevents accumulation of cyanide deposits which increase CN- concn. and reduce efficiency. Use of the weak basic bed immediately after the cationic bed protects the strongly basic anionic bed from irreversible reaction with complex cyanides.
FR7306697A 1973-02-26 1973-02-26 Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds Granted FR2219121A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7306697A FR2219121A1 (en) 1973-02-26 1973-02-26 Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7306697A FR2219121A1 (en) 1973-02-26 1973-02-26 Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds

Publications (2)

Publication Number Publication Date
FR2219121A1 true FR2219121A1 (en) 1974-09-20
FR2219121B1 FR2219121B1 (en) 1980-06-20

Family

ID=9115394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306697A Granted FR2219121A1 (en) 1973-02-26 1973-02-26 Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds

Country Status (1)

Country Link
FR (1) FR2219121A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394495A2 (en) * 1977-06-15 1979-01-12 Cons Foods Corp METHOD AND APPARATUS FOR TREATING DRINKING WATER
US4267159A (en) * 1980-08-08 1981-05-12 Crane Co. Cyanide recovery
US4732609A (en) * 1985-09-23 1988-03-22 Witteck Development Inc. Recovery of cyanide from waste waters by an ion exchange process
CN102883783A (en) * 2010-04-26 2013-01-16 三菱瓦斯化学株式会社 Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394495A2 (en) * 1977-06-15 1979-01-12 Cons Foods Corp METHOD AND APPARATUS FOR TREATING DRINKING WATER
US4267159A (en) * 1980-08-08 1981-05-12 Crane Co. Cyanide recovery
US4732609A (en) * 1985-09-23 1988-03-22 Witteck Development Inc. Recovery of cyanide from waste waters by an ion exchange process
CN102883783A (en) * 2010-04-26 2013-01-16 三菱瓦斯化学株式会社 Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same

Also Published As

Publication number Publication date
FR2219121B1 (en) 1980-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse