WO2005039754A1 - Ultraschallreaktor - Google Patents
Ultraschallreaktor Download PDFInfo
- Publication number
- WO2005039754A1 WO2005039754A1 PCT/EP2003/010742 EP0310742W WO2005039754A1 WO 2005039754 A1 WO2005039754 A1 WO 2005039754A1 EP 0310742 W EP0310742 W EP 0310742W WO 2005039754 A1 WO2005039754 A1 WO 2005039754A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reactor
- ultrasonic
- liquid
- cavitation
- ultrasound
- Prior art date
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
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/192—Details relating to the geometry of the reactor polygonal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
Definitions
- the invention relates to an ultrasonic reactor for the ultrasonic treatment of liquids, in particular aqueous suspensions such as waste water, process water, liquid manure or sewage sludge, with a reactor housing which has at least one liquid inlet and at least one liquid outlet and is subdivided into reactor sections which are each provided with at least one ultrasonic oscillator. wherein the liquid entering through the liquid inlet flows through the reactor sections in sequence and after the last reactor section reaches the liquid outlet.
- aqueous suspensions such as waste water, process water, liquid manure or sewage sludge
- Such a reactor is known for example from DE 195 17 381 C1.
- This consists of a steel tube for the passage of the sludge and at least one ultrasound transmitter in the form of a rod-shaped ultrasound transducer made of stainless steel or titanium and comprising an electromechanical transducer.
- Several such steel tubes can be connected to form a multi-stage reactor, either a zigzag arrangement with oblique steel tubes or a lattice arrangement being recommended.
- Such ultrasound reactors can be used in the municipal economy for drinking water treatment, wastewater treatment, bio-solids treatment or
- Bulk sludge control can be used. In agriculture, they are used for biomass utilization, recycling of process water or disinfection of recycled water. In industry, they are useful for industrial wastewater treatment, process water treatment or in connection with surface processes. Pharmaceuticals and food technology use them for
- Cavitation occurs preferably at low ultrasound frequencies.
- ultrasound treatment in particular of wastewater and sewage sludge, result in useful effects, which range from killing germs to higher biogas yields as a result of better digested sewage sludge.
- the object of the invention is to provide an ultrasonic reactor of the type mentioned in the introduction, in which the ultrasonic treatment has a particularly high effectiveness and yield of digested materials in the treated liquid.
- the invention solves this problem in that the reactor sections have cavitation spaces of different sizes in which the ultrasound generated by the respective ultrasound oscillator is effective.
- the effectiveness of the ultrasound treatment can be influenced by the shape of the cavitation spaces in which cavitation bubbles are created by the ultrasound radiation. This may be related to the energy density of the radiated ultrasound waves.
- the invention therefore also includes reactor devices in which different energy irradiation is achieved by different powers of the ultrasonic vibrators. possibly Due to the different conditions in the different reactor sections, different constituents of the sewage sludge or the liquid to be treated are also converted particularly well, so that there is an overall increase in effectiveness.
- Cavitation rooms with sizes decreasing in the flow direction are arranged. This results in an increasing concentration of the available sound energy in the successive cavitation rooms.
- a particularly effective arrangement provides that the volume difference between successive cavitation spaces is 5 percent to 20 percent, preferably about 10 percent of the sonicated volume.
- a further improvement in the yield of the ultrasound reactor is achieved by the measure that the reactor sections have essentially non-sonicated reaction spaces which are arranged after the cavitation spaces in the direction of flow of the liquid to be treated. It has turned out to be favorable if the liquid to be treated also has periods of time without ultrasound radiation between the periods of cavitation formation in which the reactions and conversions stimulated by the ultrasound radiation can take place.
- the ultrasonic transducers may also be useful in individual cases if the ultrasonic transducers do not work continuously, but rather in pulse mode. Periodic periods of time then remain between the ultrasound pulses, in which the desired reactions can take place effectively.
- Reactor sections with five ultrasonic transducers are provided.
- the reactor sections are arranged essentially horizontally next to one another, preferably in a row, and that the ultrasonic vibrators protrude into the reactor sections from above. This arrangement has little
- the effectiveness of the ultrasound treatment can be increased further by operating the ultrasound transducers with different ultrasound frequencies.
- the ultrasound process works better at certain frequencies or in certain frequency ranges than in others. There can also be a synergy effect in successive ultrasound treatments with different ultrasound frequencies.
- the respective ultrasonic transducer must be replaced with another in the event of a desired frequency change. This in turn is possible in a particularly simple manner if the ultrasonic vibrators, as described above, protrude into the reactor sections from above.
- a particularly simple and inexpensive to produce embodiment of the invention provides that the reactor housing consists of a trough, a trough or an elongated box with a substantially horizontally oriented longitudinal axis, which is divided by partition walls into reactor sections, and that the bottom of the reactor housing from the liquid inlet side to
- Liquid outlet side is designed to rise, so that the sonicated volumes of the individual cavitation rooms are arranged to decrease in the direction of flow.
- the individual reactor sections merge into one another, so to speak, without having to individually design and connect them to one another.
- the reactor housing and the partition walls are made of stainless steel.
- the intermediate walls are aligned essentially vertically and are provided with liquid passages, which are arranged alternately on the upper or lower side in the case of successive intermediate walls, so that the liquid meandering alternately upward or downward from a cavitation space into a reaction space and flows further into the next cavitation space of the subsequent reactor section. Due to the meandering liquid flow, vortex formation occurs, which means that the liquid to be treated is constantly mixed vigorously. In addition, there is a shorter design of the
- Ultrasonic reactor than in the event that the liquid would only flow straight ahead. It has proven to be particularly effective if the liquid moves from top to bottom in the cavitation rooms exposed to ultrasonic vibrations.
- the ultrasonic vibrators convert electrical energy of up to 2 kilowatts into mechanical vibrations with frequencies of 20 kilohertz to 10 megahertz by means of piezo-ceramic or magneto-restrictive effects.
- the piezo-ceramic effect is more effective, but corresponding ultrasonic transducers are more expensive to manufacture and, conversely, an ultrasonic transducer based on the magneto-restrictive effect is cheaper, but less effective.
- Figure 1 an ultrasonic reactor according to the invention in a schematic representation, in longitudinal section;
- Figure 2 a side view of the same ultrasonic reactor seen from the liquid inlet side.
- FIG. 1 shows an ultrasound reactor with a box-shaped reactor housing 1 made of stainless steel, which is provided with a liquid inlet 2 on the upper left side and a liquid outlet 3 on the upper right side.
- the reactor has five reactor sections, each consisting of one
- the cavitation spaces 4, 5, 6, 7, 8 are each provided with an ultrasonic oscillator 14 which projects into the respective cavitation space 4, 5, 6, 7, 8 from above.
- the cavitation spaces 4, 5, 6, 7, 8 are each of the subsequent reaction spaces 9, 10, 11, 12, 13 through
- the reactor housing 1 stands on feet 22, 23.
- the bottom 20 of the reactor housing 1 is designed to increase from left to right in the illustration in FIG. This will sonicate them with ultrasound
- Cavitation rooms 4, 5, 6, 7, 8 are constantly smaller from left to right.
- the liquid to be treated enters in the direction of arrow 24 through the liquid inlet 2 and then flows around the ultrasound-radiating end region 26 of the ultrasound oscillator 14.
- the direction of flow is from top to bottom.
- the ultrasonic reactor shown is used in particular for the disintegration of biological cells in aqueous suspensions such as water, waste water, sewage sludge or liquid manure, with the aid of cavitation caused by ultrasound in conjunction with sonochemical reactions.
- aqueous suspensions such as water, waste water, sewage sludge or liquid manure
- cavitation caused by ultrasound in conjunction with sonochemical reactions.
- This will dissolved organic high-molecular substances in water and waste water, in particular industrial in nature, which are generally not biodegradable or difficult to decompose, changed or broken down in their chemical structure in such a way that they are subsequently biodegradable.
- the ultrasonic waves used are in the frequency range of
- the high-energy ultrasonic waves are generated with the help of vibrating structures, which use piezo-ceramic or magneto-strictive effects to convert electrical energy of up to 2 kilowatts into ultrasound. This results in specific energy inputs of more than 0.1 kilowatt hour / m 3 of sonicated medium.
- the arrangement of five ultrasonic vibrators 14 in a reactor housing 1 enables the cavitation spaces 4, 5, 6, 7, 8 to be adapted to the respective medium and optimized for the purpose of the treatment in conjunction with the formation of adapted reaction spaces 9, 10, 11, 12, 13, in which the course of the sonochemical reactions becomes possible.
- the individual ultrasonic vibrators 14 can also work at different frequencies if required.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003277914A AU2003277914A1 (en) | 2003-09-26 | 2003-09-26 | Ultrasound reactor |
PCT/EP2003/010742 WO2005039754A1 (de) | 2003-09-26 | 2003-09-26 | Ultraschallreaktor |
DE10394301T DE10394301B4 (de) | 2003-09-26 | 2003-09-26 | Ultraschallreaktor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2003/010742 WO2005039754A1 (de) | 2003-09-26 | 2003-09-26 | Ultraschallreaktor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005039754A1 true WO2005039754A1 (de) | 2005-05-06 |
Family
ID=34485988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/010742 WO2005039754A1 (de) | 2003-09-26 | 2003-09-26 | Ultraschallreaktor |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003277914A1 (de) |
DE (1) | DE10394301B4 (de) |
WO (1) | WO2005039754A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101811751A (zh) * | 2010-04-15 | 2010-08-25 | 南京航空航天大学 | 行波型超声反应器 |
EP1736442B1 (de) | 2005-06-23 | 2018-09-12 | Eisenmann SE | Vorrichtung zur Luftaufbereitung sowie Oberflächenbehandlungsanlage mit derselben |
DE102017113132A1 (de) | 2017-06-14 | 2018-12-20 | Roland Lönhardt | Verfahren und Vorrichtung zur Verbesserung der Ausbeute bei der Zuckerherstellung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013206492B4 (de) | 2013-04-11 | 2021-11-04 | ULTRAWAVES - Wasser- und Umwelttechnologien GmbH | Ultraschallbehandlungsvorrichtung für Biogasanlagen |
DE102019123990A1 (de) | 2019-09-06 | 2021-03-11 | PRE Power Recycling Energyservice GmbH | Vorrichtung und Verfahren zur Konzentration der Energiedichte für eine Hochleistungs-Ultraschallbehandlung von Suspensionen und Flüssigkeiten |
DE102022100746A1 (de) * | 2022-01-13 | 2023-07-13 | HAGO Druck und Medien GmbH | Verfahren zur Herstellung von Wasserstoff aus Biomasse mittels SCWG |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865579C (de) * | 1951-02-12 | 1953-02-05 | Hans Heymann Dr Ing | Schwingungstechnische Klaerung von Abwaessern |
SU1076136A1 (ru) * | 1982-01-06 | 1984-02-29 | Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета | Реактор |
WO2002079096A1 (fr) * | 2001-03-28 | 2002-10-10 | Fuji Electric Co., Ltd. | Procede et dispositif de decomposition de polluants environnementaux |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19517381C1 (de) * | 1995-05-11 | 1996-11-07 | Tesser Kurt Dipl Ing Fh | Einrichtung zum Zerstören zellulärer Strukturen in Schlämmen biologischer Kläranlagen |
-
2003
- 2003-09-26 WO PCT/EP2003/010742 patent/WO2005039754A1/de active Application Filing
- 2003-09-26 AU AU2003277914A patent/AU2003277914A1/en not_active Abandoned
- 2003-09-26 DE DE10394301T patent/DE10394301B4/de not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE865579C (de) * | 1951-02-12 | 1953-02-05 | Hans Heymann Dr Ing | Schwingungstechnische Klaerung von Abwaessern |
SU1076136A1 (ru) * | 1982-01-06 | 1984-02-29 | Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета | Реактор |
WO2002079096A1 (fr) * | 2001-03-28 | 2002-10-10 | Fuji Electric Co., Ltd. | Procede et dispositif de decomposition de polluants environnementaux |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 198442, Derwent World Patents Index; Class J04, AN 1984-262446, XP002267982 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1736442B1 (de) | 2005-06-23 | 2018-09-12 | Eisenmann SE | Vorrichtung zur Luftaufbereitung sowie Oberflächenbehandlungsanlage mit derselben |
CN101811751A (zh) * | 2010-04-15 | 2010-08-25 | 南京航空航天大学 | 行波型超声反应器 |
DE102017113132A1 (de) | 2017-06-14 | 2018-12-20 | Roland Lönhardt | Verfahren und Vorrichtung zur Verbesserung der Ausbeute bei der Zuckerherstellung |
DE102017113132B4 (de) | 2017-06-14 | 2020-05-20 | Roland Lönhardt | Verfahren und Vorrichtung zur Verbesserung der Ausbeute bei der Zuckerherstellung |
Also Published As
Publication number | Publication date |
---|---|
DE10394301D2 (de) | 2006-07-20 |
DE10394301B4 (de) | 2011-07-21 |
AU2003277914A1 (en) | 2005-05-11 |
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