RO81184B1 - Procedeu de recuperare a zincului din apele reziduale - Google Patents
Procedeu de recuperare a zincului din apele rezidualeInfo
- Publication number
- RO81184B1 RO81184B1 RO102419A RO10241980A RO81184B1 RO 81184 B1 RO81184 B1 RO 81184B1 RO 102419 A RO102419 A RO 102419A RO 10241980 A RO10241980 A RO 10241980A RO 81184 B1 RO81184 B1 RO 81184B1
- Authority
- RO
- Romania
- Prior art keywords
- zinc
- residual water
- recovering zinc
- treated
- waste water
- Prior art date
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract 4
- 239000011701 zinc Substances 0.000 title abstract 4
- 229910052725 zinc Inorganic materials 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- 239000002351 wastewater Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 238000010908 decantation Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 1
- 229960001763 zinc sulfate Drugs 0.000 abstract 1
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 1
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
Conform inventiei, procedeul pentru recuperarea zincului din apele reziduale, provenite din procesul de obtinere a fibrelor artificiale, consta în aceea ca, în scopul recuperarii zincului cu randament de 98% apele reziduale acide avînd o temperatura de 90...95 degree C se trateaza în prima etapa cu o solutie de hidroxid de sodiu 30% pîna la un pH de 4...5, iar în treapta a doua se trateaza cu o solutie de carbonat de sodiu 10% pîna la un pH de 4...5, iar în trepta a doua se trateaza cu o solutie de carbonat de sodiu 10% pîna la un pH 8,5...9,5, dupa care concentratul de zinc sub forma de precipitat se separa de supernatant prin decantare sau filtrare, apoi se transforma în sulfat de zinc si se cristalizeaza.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81184B1 true RO81184B1 (ro) | 1983-01-30 |
| RO81184A2 RO81184A2 (ro) | 1983-02-01 |
Family
ID=20109078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81184A2 (ro) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645627A (zh) * | 2015-12-25 | 2016-06-08 | 中辉人造丝有限公司 | 一种纺丝过程锌离子回收循环利用系统 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10111895A1 (de) * | 2001-03-13 | 2002-09-19 | Kronos Titan Gmbh & Co Ohg | Verfahren zur Erhöhung des Trockenrückstandes bei aufgearbeitetem Zyklonstaub |
-
1980
- 1980-10-24 RO RO80102419A patent/RO81184A2/ro unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645627A (zh) * | 2015-12-25 | 2016-06-08 | 中辉人造丝有限公司 | 一种纺丝过程锌离子回收循环利用系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| RO81184A2 (ro) | 1983-02-01 |
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