DD148155A3 - METHOD FOR REMOVING AMMONIUM NITROGEN-CONTAINING SUBSTANCES FROM INDUSTRIAL WASTEWATERS - Google Patents
METHOD FOR REMOVING AMMONIUM NITROGEN-CONTAINING SUBSTANCES FROM INDUSTRIAL WASTEWATERS Download PDFInfo
- Publication number
- DD148155A3 DD148155A3 DD21063779A DD21063779A DD148155A3 DD 148155 A3 DD148155 A3 DD 148155A3 DD 21063779 A DD21063779 A DD 21063779A DD 21063779 A DD21063779 A DD 21063779A DD 148155 A3 DD148155 A3 DD 148155A3
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- German Democratic Republic
- Prior art keywords
- ammonium
- containing substances
- purification
- nitrogen
- distillation
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Removal Of Specific Substances (AREA)
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Abstract
Das Verfahren zur Entfernung von ammoniumstickstoffhaltigen Substanzen aus Industrieabwaessern waehrend der Destillation unter Verwendung von Natriumhydroxid betrifft die Reinigung und Ableitung von Industrieabwaessern aus der Chemieindustrie, der Kokschemie und der Treibstoffherstellung. Die Erfindung loest die Frage der Beseitigung von frei und fest gebundenem Ammonium aus Abwaessern vor ihrer Reinigung in den weiteren Stufen und vor der Einleitung in oeffentliche Gewaesser. Das Wesen der Erfindung besteht darin, dasz bei der Entfernung des frei gebundenen Ammoniums durch Destillation das fest gebundene Ammonium einschlieszlich der anderen stickstoffhaltigen Substanzen wie z.B. organischer Basen mit Hilfe von Natriumhydroxid ausgetrieben werden, das dem thermisch angepaszten Wasser zugesetzt wird. Der als Abprodukt gewonnene Ammoniumrohstoff kann z.B. bei der Herstellung von fluessigem wasserfreiem Ammoniak genutzt werden. Die Erfindung kann vor allem bei der Reinigung von Abwasser in sogenannten Primaerreinigungsstufen Anwendung finden.The process for removing ammonium nitrogen-containing substances from industrial wastewater during the distillation using sodium hydroxide relates to the purification and discharge of industrial waste from the chemical industry, coke chemistry and fuel production. The invention solves the question of the removal of free and firmly bound ammonium from effluents prior to their purification in the further stages and prior to discharge into public waters. The essence of the invention is that upon removal of the free-bound ammonium by distillation, the tightly bound ammonium, including the other nitrogen-containing substances, e.g. organic bases are expelled by means of sodium hydroxide, which is added to the thermally modified water. The recovered ammonium raw material may be e.g. used in the production of liquid anhydrous ammonia. The invention can be found especially in the purification of wastewater in so-called Primaerreinigungsstufen application.
Description
210637 -λ- 210637 -λ-
PV IßOP Vß 14.03.1978 'PV ISOP VSS 14.03.1978 '
17.09.197909/17/1979
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-3- 210637 -3- 210637
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS160278A CS198670B1 (en) | 1978-03-14 | 1978-03-14 | Method of removal nitrogen compounds ammonia type from industrial waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD148155A3 true DD148155A3 (en) | 1981-05-13 |
Family
ID=5350804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD21063779A DD148155A3 (en) | 1978-03-14 | 1979-01-22 | METHOD FOR REMOVING AMMONIUM NITROGEN-CONTAINING SUBSTANCES FROM INDUSTRIAL WASTEWATERS |
Country Status (2)
| Country | Link |
|---|---|
| CS (1) | CS198670B1 (en) |
| DD (1) | DD148155A3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT401048B (en) * | 1991-05-25 | 1996-05-28 | Envicon Eng Gmbh | METHOD AND DEVICE FOR REMOVING AMMONIUM COMPOUNDS FROM WASTEWATER |
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
-
1978
- 1978-03-14 CS CS160278A patent/CS198670B1/en unknown
-
1979
- 1979-01-22 DD DD21063779A patent/DD148155A3/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT401048B (en) * | 1991-05-25 | 1996-05-28 | Envicon Eng Gmbh | METHOD AND DEVICE FOR REMOVING AMMONIUM COMPOUNDS FROM WASTEWATER |
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
Also Published As
| Publication number | Publication date |
|---|---|
| CS198670B1 (en) | 1980-06-30 |
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