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WO2003082753A1 - Procede et dispositif pour detruire des structures cellulaires presentes dans des eaux usees et des boues de stations d'epuration biologiques - Google Patents

Procede et dispositif pour detruire des structures cellulaires presentes dans des eaux usees et des boues de stations d'epuration biologiques Download PDF

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Publication number
WO2003082753A1
WO2003082753A1 PCT/EP2003/003187 EP0303187W WO03082753A1 WO 2003082753 A1 WO2003082753 A1 WO 2003082753A1 EP 0303187 W EP0303187 W EP 0303187W WO 03082753 A1 WO03082753 A1 WO 03082753A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
section
cross
suspension
length
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.)
Ceased
Application number
PCT/EP2003/003187
Other languages
German (de)
English (en)
Inventor
Michael Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMU Unterwasserpumpen GmbH
Bionik Innovative Technik fuer die Umwelt GmbH
Original Assignee
EMU Unterwasserpumpen GmbH
Bionik Innovative Technik fuer die Umwelt GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EMU Unterwasserpumpen GmbH, Bionik Innovative Technik fuer die Umwelt GmbH filed Critical EMU Unterwasserpumpen GmbH
Priority to AU2003216892A priority Critical patent/AU2003216892A1/en
Publication of WO2003082753A1 publication Critical patent/WO2003082753A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1294—"Venturi" aeration means
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/06—Sludge reduction, e.g. by lysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the invention relates to a method and a device for destroying cellular structures in suspensions of microorganisms, in particular in sludges from biological sewage treatment plants.
  • the digestion can take place, among other things, through biological and chemical reactions, through pressure and temperature changes or through kinetic energy.
  • Disintegration devices suitable for large-scale use are, in particular, the agitator ball mill, the high-pressure homogenizer and the ultrasonic homogenizer.
  • Ultrasonic homogenizers consist of three main components.
  • a generator generates a high frequency voltage in the range of 20 to 40 kHz.
  • a ceramic crystal made of piezo-electric material converts the electrical into mechanical impulses and a sonotrode transfers them into the medium.
  • the ultrasonic vibrations generate alternating high and low pressure in the liquid high-energy shear stress fields that cause cavitation. If the cohesive forces of the liquid molecules are overcome in the negative pressure phase of the vibration, cavitation nuclei, such as interfaces, air bubbles or particles, microbubbles, which can grow over several vibration cycles, preferably arise. If they exceed a critical size, they become unstable and implode. Pressure surges are generated that cause local temperatures of several thousand degrees Celsius and pressure peaks of 500 bar. The pressure waves overlap in such a way that fluid vortices are created in which shear stress fields develop and the cells are stressed on scissors.
  • the economic importance of the device according to the invention lies above all in the operating costs that must be taken into account on an ongoing basis.
  • the energy required to generate the pressures in the pipelines of approximately 10 bar is far lower than in the known methods.
  • the specially selected shape of the nozzle largely prevents the material from becoming detached and worn. As a result, the financial expenses for repair, maintenance and maintenance can be kept low.
  • FIG. 1 shows a diagram of a two-stage disintegration system with a device according to the invention
  • FIG. 2 shows a section from FIG. 1
  • the device 1 according to the invention is used as part of a two-stage disintegration process.
  • a suspension of microorganisms is in the direction of the arrow by the device 1 according to the invention
  • Pipelines 2, a feed pump 3 and a disintegration device 4 according to the invention are promoted.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Selon l'invention, pour détruire par cavitation des structures cellulaires présentes dans des eaux usées et des suspensions de micro-organismes, en particulier des boues de stations d'épuration biologiques, la suspension est acheminée, après homogénéisation éventuelle, à travers une tuyère (4) présentant une section diminuant dans un premier temps, puis augmentant à nouveau, appelée tuyère de Laval. En raison de l'augmentation de la vitesse d'écoulement dans la section étroite (Q2) de la tuyère (4), la pression statique de la suspension descend en dessous de la pression de vaporisation, ce qui entraîne la formation de bulles de cavitation qui disparaissent lors du rétablissement de l'équilibre de pression dans la section plus large (Q3) de la tuyère. Ces opérations induisent des champs de contraintes de cisaillement à grande énergie dans lesquels les cellules sont désagrégées. Selon le degré de désagrégation recherché, la suspension peut être acheminée à plusieurs reprises à travers la même tuyère sans consommation excessive d'énergie.
PCT/EP2003/003187 2002-04-03 2003-03-27 Procede et dispositif pour detruire des structures cellulaires presentes dans des eaux usees et des boues de stations d'epuration biologiques Ceased WO2003082753A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003216892A AU2003216892A1 (en) 2002-04-03 2003-03-27 Method and device for destroying cellular structures in waste water and sludge in biological sewage works

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002114689 DE10214689A1 (de) 2002-04-03 2002-04-03 Verfahren und Vorrichtung zum Zerstören zellularer Strukturen in Suspensionen von Mikroorganismen
DE10214689.6 2002-04-03

Publications (1)

Publication Number Publication Date
WO2003082753A1 true WO2003082753A1 (fr) 2003-10-09

Family

ID=28458548

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/003187 Ceased WO2003082753A1 (fr) 2002-04-03 2003-03-27 Procede et dispositif pour detruire des structures cellulaires presentes dans des eaux usees et des boues de stations d'epuration biologiques

Country Status (3)

Country Link
AU (1) AU2003216892A1 (fr)
DE (1) DE10214689A1 (fr)
WO (1) WO2003082753A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005082786A1 (fr) * 2004-02-27 2005-09-09 Emu Unterwasserpumpen Gmbh Procede et dispositif pour traiter de l'eau chargee en substances nocives par cavitation
DE202005000875U1 (de) * 2005-01-20 2006-06-01 BIONIK GmbH - Innovative Technik für die Umwelt Vorrichtung zum Zerkleinern partikulärer organischer Substanzen in Suspensionen von Mikroorganismen in einem Trägermedium, insbesondere in Abwässern
EP1658237B1 (fr) * 2003-08-29 2010-08-25 Bionik GmbH - Innovative Technik für die Umwelt Procede permettant la desintegration de substances organiques particulaires dans des suspensions de microorganismes
WO2012003815A3 (fr) * 2010-07-07 2012-04-05 Vysoké učeni technické v Brně Dispositif pour l'élimination des microorganismes dans des liquides
JP4939940B2 (ja) * 2003-08-29 2012-05-30 ビオニーク ゲーエムベーハー − イノヴァティーフェ テヒニーク フュア ディー ウムヴェルト 微生物の懸濁液中で粒子状有機物質を粉砕する方法及び装置
EP3772488A1 (fr) 2019-08-09 2021-02-10 Ventrrad Inversiones, S.L. Dispositif d'épuration des eaux usées polluées par des espèces chimiques métalliques, non métalliques et métalloïdes

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347476B4 (de) 2003-10-01 2018-07-26 Pondus Verfahrenstechnik Gmbh Vorrichtung und Verfahren zum Zellaufschluss in Schlämmen
DE202005005169U1 (de) * 2005-04-01 2006-08-17 BIONIK GmbH - Innovative Technik für die Umwelt Einrichtung zur Abwasserreinigung
DE102005034629B4 (de) * 2005-07-19 2007-09-13 Dr. Hielscher Gmbh Vorrichtung und Verfahren zum mechanischen Aufschluss von Zellen
DE102006011030A1 (de) * 2006-03-09 2007-09-13 Linde Ag Vorrichtung zur Desintegration von Schlämmen
DE102007007721A1 (de) * 2007-02-16 2008-08-21 BIONIK GmbH - Innovative Technik für die Umwelt Verfahren und Vorrichtung zur Behandlung von Klärschlamm, Abwasser oder einer Suspension partikulärer Substanzen
DE102009034977B4 (de) 2009-07-28 2011-07-21 Technische Universität München, 80333 Kavitationsreaktor sowie ein Verfahren zur hydrodynamischen Erzeugung homogener, oszillierender Kavitationsblasen in einem Fluid, ein Verfahren zur Desinfektion eines Fluids und ein Verfahren zum Emulgieren oder zum Suspendieren oder zur Reaktionsbegünstigung zumindest zweier Stoffe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494585A (en) * 1992-03-02 1996-02-27 Cox; Dale W. Water remediation and purification system and method
US6013183A (en) * 1998-08-05 2000-01-11 Paradigm Environmental Technologies Inc. Method of liquefying microorganisms derived from biological wastewater treatment processes
US6200486B1 (en) * 1999-04-02 2001-03-13 Dynaflow, Inc. Fluid jet cavitation method and system for efficient decontamination of liquids

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428535A1 (de) * 1984-08-02 1986-02-13 Siekmann, Helmut E., Prof.Dr.-Ing., 1000 Berlin Verfahren und vorrichtung, insbesondere zur konditionierung von abwaesserschlaemmen
DE50109764D1 (de) * 2000-05-14 2006-06-14 Joerg Lehmann Verfahren und vorrichtung zur physikalisch-chemischen behandlung fluider medien

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494585A (en) * 1992-03-02 1996-02-27 Cox; Dale W. Water remediation and purification system and method
US6013183A (en) * 1998-08-05 2000-01-11 Paradigm Environmental Technologies Inc. Method of liquefying microorganisms derived from biological wastewater treatment processes
US6200486B1 (en) * 1999-04-02 2001-03-13 Dynaflow, Inc. Fluid jet cavitation method and system for efficient decontamination of liquids

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1658237B1 (fr) * 2003-08-29 2010-08-25 Bionik GmbH - Innovative Technik für die Umwelt Procede permettant la desintegration de substances organiques particulaires dans des suspensions de microorganismes
JP4939940B2 (ja) * 2003-08-29 2012-05-30 ビオニーク ゲーエムベーハー − イノヴァティーフェ テヒニーク フュア ディー ウムヴェルト 微生物の懸濁液中で粒子状有機物質を粉砕する方法及び装置
WO2005082786A1 (fr) * 2004-02-27 2005-09-09 Emu Unterwasserpumpen Gmbh Procede et dispositif pour traiter de l'eau chargee en substances nocives par cavitation
DE202005000875U1 (de) * 2005-01-20 2006-06-01 BIONIK GmbH - Innovative Technik für die Umwelt Vorrichtung zum Zerkleinern partikulärer organischer Substanzen in Suspensionen von Mikroorganismen in einem Trägermedium, insbesondere in Abwässern
WO2006077014A1 (fr) * 2005-01-20 2006-07-27 BIONIK GmbH - Innovative Technik für die Umwelt Dispositif pour fractionner des substances organiques particulaires dans des suspensions de micro-organismes dans un milieu de support, en particulier dans des eaux usees
WO2012003815A3 (fr) * 2010-07-07 2012-04-05 Vysoké učeni technické v Brně Dispositif pour l'élimination des microorganismes dans des liquides
EP3772488A1 (fr) 2019-08-09 2021-02-10 Ventrrad Inversiones, S.L. Dispositif d'épuration des eaux usées polluées par des espèces chimiques métalliques, non métalliques et métalloïdes

Also Published As

Publication number Publication date
AU2003216892A1 (en) 2003-10-13
DE10214689A1 (de) 2003-10-23

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