RO86642B1 - PROCEDEU DE TRATARE ELECTROCHIMICA A SOLUTIILOR SI APELOR REZIDUALE, REZULTATE îN PROCESELE DE OXIDARE CU BICROMAT - Google Patents
PROCEDEU DE TRATARE ELECTROCHIMICA A SOLUTIILOR SI APELOR REZIDUALE, REZULTATE îN PROCESELE DE OXIDARE CU BICROMATInfo
- Publication number
- RO86642B1 RO86642B1 RO109906A RO10990683A RO86642B1 RO 86642 B1 RO86642 B1 RO 86642B1 RO 109906 A RO109906 A RO 109906A RO 10990683 A RO10990683 A RO 10990683A RO 86642 B1 RO86642 B1 RO 86642B1
- Authority
- RO
- Romania
- Prior art keywords
- chromium
- bichromate
- oxidation processes
- anolyte
- effluents resulting
- Prior art date
Links
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 230000003647 oxidation Effects 0.000 title abstract 2
- 238000007254 oxidation reaction Methods 0.000 title abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 5
- 229910052804 chromium Inorganic materials 0.000 abstract 5
- 239000011651 chromium Substances 0.000 abstract 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 2
- 238000005868 electrolysis reaction Methods 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Inventia se refera la un procedeu de tratare electrochimica a solutiilor si apelor reziduale acide cu continut de crom trivalent si crom hexavalent, rezultate de la oxidarea cu bicromatm care consta în aceea ca solutiile acide mai concentrate în crom se introduc ca anolit într-o celula de electroliza cu diafragma ceramica nefiltranta, regenerîndu-se bicromatul si acidul sulfuric, care în continuare se recircula, iar apele de spalare acide, mai diluate în crom, se introduc ca si catolit, în aceeasi celula de electroliza, cromul reducîndu-se de la crom hexavalent la crom trivalent, pentru a fi separat ca hidroxid de crom care se introduce apoi în anolit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109906A RO86642B1 (ro) | 1983-02-04 | 1983-02-04 | PROCEDEU DE TRATARE ELECTROCHIMICA A SOLUTIILOR SI APELOR REZIDUALE, REZULTATE îN PROCESELE DE OXIDARE CU BICROMAT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109906A RO86642B1 (ro) | 1983-02-04 | 1983-02-04 | PROCEDEU DE TRATARE ELECTROCHIMICA A SOLUTIILOR SI APELOR REZIDUALE, REZULTATE îN PROCESELE DE OXIDARE CU BICROMAT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86642A2 RO86642A2 (ro) | 1985-04-17 |
| RO86642B1 true RO86642B1 (ro) | 1985-05-01 |
Family
ID=20112637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109906A RO86642B1 (ro) | 1983-02-04 | 1983-02-04 | PROCEDEU DE TRATARE ELECTROCHIMICA A SOLUTIILOR SI APELOR REZIDUALE, REZULTATE îN PROCESELE DE OXIDARE CU BICROMAT |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86642B1 (ro) |
-
1983
- 1983-02-04 RO RO109906A patent/RO86642B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86642A2 (ro) | 1985-04-17 |
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