IT1272297B - "procedimento ed impianto per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti". - Google Patents
"procedimento ed impianto per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti".Info
- Publication number
- IT1272297B IT1272297B ITRM940408A ITRM940408A IT1272297B IT 1272297 B IT1272297 B IT 1272297B IT RM940408 A ITRM940408 A IT RM940408A IT RM940408 A ITRM940408 A IT RM940408A IT 1272297 B IT1272297 B IT 1272297B
- Authority
- IT
- Italy
- Prior art keywords
- ammonia
- contaminated
- carbonate
- strong anions
- purification
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 5
- 150000001450 anions Chemical class 0.000 title abstract 3
- 229910021529 ammonia Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 150000005323 carbonate salts Chemical class 0.000 abstract 1
- 150000003841 chloride salts Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 235000021317 phosphate Nutrition 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
Landscapes
- Removal Of Specific Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Procedimento per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti, quali cloruri, fosfati, solfati e simili, consistente nel mescolare la soluzione contaminata con sale carbonato, quali carbonato di sodio, carbonato di potassio, carbonato di calcio, etc., eventualmente previo trattamento preliminare con idrossido di sodio (soda caustica) per il fissaggio di detti anioni forti; nel riscaldare la soluzione contaminata ad una temperatura compresa tra 35 e 48°C, con pH compreso tra 8 e 10, preferibilmente 9,5, in modo da ottenere sali ammonici altamente volatili; e nel separare tali sali ammoniacali mediante una prima condensazione ed un loro adsorbimento in una soluzione acquosa mantenuta in ricircolo continuo e che via via si arricchisce di tali composti.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM940408A IT1272297B (it) | 1994-06-22 | 1994-06-22 | "procedimento ed impianto per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti". |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM940408A IT1272297B (it) | 1994-06-22 | 1994-06-22 | "procedimento ed impianto per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti". |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITRM940408A0 ITRM940408A0 (it) | 1994-06-22 |
| ITRM940408A1 ITRM940408A1 (it) | 1995-12-22 |
| IT1272297B true IT1272297B (it) | 1997-06-16 |
Family
ID=11402610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITRM940408A IT1272297B (it) | 1994-06-22 | 1994-06-22 | "procedimento ed impianto per la purificazione ed il recupero di ammoniaca da reflui contaminati, anche in presenza di anioni forti". |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1272297B (it) |
-
1994
- 1994-06-22 IT ITRM940408A patent/IT1272297B/it active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| ITRM940408A0 (it) | 1994-06-22 |
| ITRM940408A1 (it) | 1995-12-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |