DE10030241A1 - Low-energy degradation of water contaminants such as halogenated hydrocarbons by subjection to hydroxy radicals in a cavitation-producing mixed field nozzle - Google Patents
Low-energy degradation of water contaminants such as halogenated hydrocarbons by subjection to hydroxy radicals in a cavitation-producing mixed field nozzleInfo
- Publication number
- DE10030241A1 DE10030241A1 DE2000130241 DE10030241A DE10030241A1 DE 10030241 A1 DE10030241 A1 DE 10030241A1 DE 2000130241 DE2000130241 DE 2000130241 DE 10030241 A DE10030241 A DE 10030241A DE 10030241 A1 DE10030241 A1 DE 10030241A1
- Authority
- DE
- Germany
- Prior art keywords
- cavitation
- subjection
- low
- halogenated hydrocarbons
- mixed field
- 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.)
- Withdrawn
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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Abbau von Wasserschadstoffen durch Erzeugung von Hydroxylradikalen in einer Mischfelddüse in der das belastete Wasser kavitativ beansprucht wird.The invention relates to a process for the degradation of water pollutants Generation of hydroxyl radicals in a mixed field nozzle in which the contaminated Water is used cavitatively.
Schadstoffbelastete Wasser, wie Trinkwasser, Abwasser, Prozesswasser oder sogar Oberflächengewässer und Grundwasser selbst, sind häufig dadurch gekennzeichnet, dass sie durch eine Vielzahl organischer Verbindungen, wie beispielsweise halogenierte Kohlenwasserstoffe aus Produktionsprozessen oder Bodenauswaschungen und Arzneimittelrückständen aus Fäkalien belastet sind.Polluted water, such as drinking water, waste water, process water or even surface water and groundwater itself are often caused by this characterized by a variety of organic compounds, such as for example halogenated hydrocarbons from production processes or Soil washings and drug residues from faeces are contaminated.
Aus dem Stand der Technik sind mehrere Verfahren bekannt mit deren Hilfe die Schadstoffbelastung kontrolliert werden kann, wie Ozonierung, Ausnutzung der Fenton-Reaktion, Kombination von UV mit geeigneten Katalysatoren oder sonolytische Verfahren. Die Wirkungsgrundlage der meisten Verfahren beruht auf die Tatsache, dass Hydroxylradikale erzeugt werden. Diese Hydroxylradikale reagieren mit nahezu allen organischen Verbindungen in Abhängigkeit von ihrer Verteilungsrate. Nachteil dieser Verfahren ist, dass sie entweder nur geringe Abbauraten aufweisen, da die Bildung von Hydroxylradikalen nur in Grenzschichtbereichen Auftritt oder aber ein hoher energetischer Aufwand erforderlich ist um Kavitationen im System zu erzeugen.Several methods are known from the prior art with the aid of which the Pollution can be controlled, such as ozonation, exploitation of the Fenton reaction, combination of UV with suitable catalysts or sonolytic procedures. The basis of most processes is based on the fact that hydroxyl radicals are generated. These hydroxyl radicals react with almost all organic compounds depending on their Distribution rate. Disadvantage of this method is that it is either minimal Degradation rates have, since the formation of hydroxyl radicals only in Boundary layer areas occur or a high energy expenditure is required to create cavitations in the system.
Der gleiche Schadstoffabbau wird erreicht, wenn schadstoffbelastetes Wasser in einem Mischfeld kavitativ beansprucht wird. Das Kavitationsfeld bewirkt einerseits eine intensive Homogenisierung des schadstoffbelasteten Wassers und erzeugt anderseits ebenfalls homogen verteilte Hydroxyradikale, die das Aufbrechen der organischen Verbindungen bewirken. Der Vorteil gegenüber den bisherigen Verfahren besteht darin, dass sich das notwendige Kavitationsfeld mit einfachen Mitteln und geringem energetischen Aufwand erzeugen lässt.The same pollutant degradation is achieved when polluted water in a mixed field is claimed cavitatively. The cavitation field causes on the one hand an intensive homogenization of the polluted water and on the other hand also produces homogeneously distributed hydroxy radicals, which Break up the organic compounds. The advantage over the previous method is that the necessary cavitation field with simple means and low energy expenditure.
Hierzu kann eine Mischfeldsteuerung, wie in DE 199 53 754.2 beschrieben, genutzt werden.For this purpose, a mixed field control, as described in DE 199 53 754.2, be used.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000130241 DE10030241A1 (en) | 2000-06-20 | 2000-06-20 | Low-energy degradation of water contaminants such as halogenated hydrocarbons by subjection to hydroxy radicals in a cavitation-producing mixed field nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000130241 DE10030241A1 (en) | 2000-06-20 | 2000-06-20 | Low-energy degradation of water contaminants such as halogenated hydrocarbons by subjection to hydroxy radicals in a cavitation-producing mixed field nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10030241A1 true DE10030241A1 (en) | 2002-01-03 |
Family
ID=7646304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000130241 Withdrawn DE10030241A1 (en) | 2000-06-20 | 2000-06-20 | Low-energy degradation of water contaminants such as halogenated hydrocarbons by subjection to hydroxy radicals in a cavitation-producing mixed field nozzle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10030241A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7056437B2 (en) | 2001-11-12 | 2006-06-06 | Emu Unterwasserpumpen Gmbh | Method and device for the treatment of effluent, sludge and organic substrates |
-
2000
- 2000-06-20 DE DE2000130241 patent/DE10030241A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7056437B2 (en) | 2001-11-12 | 2006-06-06 | Emu Unterwasserpumpen Gmbh | Method and device for the treatment of effluent, sludge and organic substrates |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |