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 bedsInfo
- 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
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)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (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.
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)
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 |
-
1973
- 1973-02-26 FR FR7306697A patent/FR2219121A1/en active Granted
Cited By (4)
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 |