DE4205739A1 - METHOD FOR DESTRUCTING CELLULAR STRUCTURES OF SUSPENSIONS OF MICROORGANISMS BY ULTRASOUND, ESPECIALLY SLUDES FROM BIOLOGICAL WASTEWATER PLANTS - Google Patents

METHOD FOR DESTRUCTING CELLULAR STRUCTURES OF SUSPENSIONS OF MICROORGANISMS BY ULTRASOUND, ESPECIALLY SLUDES FROM BIOLOGICAL WASTEWATER PLANTS

Info

Publication number
DE4205739A1
DE4205739A1 DE4205739A DE4205739A DE4205739A1 DE 4205739 A1 DE4205739 A1 DE 4205739A1 DE 4205739 A DE4205739 A DE 4205739A DE 4205739 A DE4205739 A DE 4205739A DE 4205739 A1 DE4205739 A1 DE 4205739A1
Authority
DE
Germany
Prior art keywords
ultrasound
sludge
biological
microorganisms
treatment plants
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Withdrawn
Application number
DE4205739A
Other languages
German (de)
Inventor
Gerhard Dipl Ing Osswald
Toni Dr Gradl
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.)
OSSWALD, GERHARD, DIPL.-ING., 80805 MUENCHEN, DE D
Original Assignee
Gerhard Dipl Ing Osswald
Toni Dr Gradl
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 Gerhard Dipl Ing Osswald, Toni Dr Gradl filed Critical Gerhard Dipl Ing Osswald
Priority to DE4205739A priority Critical patent/DE4205739A1/en
Priority to PCT/EP1993/000439 priority patent/WO1993016958A1/en
Publication of DE4205739A1 publication Critical patent/DE4205739A1/en
Withdrawn legal-status Critical Current

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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
    • C02F3/1284—Mixing devices
    • 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
    • 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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/06—Lysis of microorganisms
    • 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

Abstract

A process is disclosed for destroying the cellular structure of microorganisms by exposing suspensions of microorganisms to ultra-sonic radiation. These suspensions of microorganisms are in particular sludges from biological sewage clarification plants. A volume and mass reduction of the clarification sludges to be disposed of is achieved thanks to this ultra-sonic treatment.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Zer­ störung zellulärer Strukturen von Suspensionen von Mi­ kroorganismen insbesondere von Schlämmen aus biologi­ schen Kläranlagen durch Ultraschall.The invention relates to a method for Zer disruption of cellular structures of suspensions of Mi Croorganisms, in particular from biological sludges treatment plants using ultrasound.

Es ist bekannt, daß sich zelluläre Strukturen von Mi­ kroorganismen mit Hilfe von Ultraschall zerstören las­ sen.It is known that cellular structures of Mi destroy microorganisms with the help of ultrasound read sen.

In biologischen Kläranlagen entstehen durch Absetzvor­ gänge Primärschlämme und durch Verstoffwechselung bio­ logisch abbaubarer Stoffe durch Bakterien im Bele­ bungs- oder Tropfkörperverfahren Überschußschlämme (Bakteriensuspension), die häufig einer Faulung zur Erzeugung von Biogas (in der Hauptsache Methan) unter­ zogen werden. Dabei verbleibt Faulschlamm.In biological wastewater treatment plants, sedimentation occurs primary sludge and through metabolism bio Logically degradable substances by bacteria in the bele Exercise or trickling filter method Excess sludge (Bacterial suspension), which is often used for digestion Generation of biogas (mainly methane) under be drawn. This leaves digested sludge.

Da die Verwendung der anfallenden Schlämme als Dünger zunehmend erschwert wird, verbleibt nur noch entweder die Deponierung oder die Verbrennung.Because the use of the resulting sludge as fertilizer becomes increasingly difficult, only remains either landfill or incineration.

Da beides mit hohen Kosten verbunden ist, ist es von Nutzen die Schlammengen, sowohl nach Volumen wie nach Trockensub­ stanzmenge zu reduzieren. Die anfallenden Schlämme lassen sich relativ schlecht entwässern. Die Entwässe­ rung ist nur unter Zugabe von (teuren) Konditionie­ rungsmitteln möglich. Die Schlämme enthalten noch viel an organischer Substanz vor allem im Inneren der Zellen der Mikroorganismen. Diese organischen Zellin­ haltsstoffe sind biologisch schwer angreifbar.Since both with is associated with high costs, it is of benefit Mud volumes, both by volume and by dry sub to reduce the punching quantity. The resulting sludge  are relatively difficult to drain. The drainage tion is only with the addition of (expensive) conditioning resources possible. The sludge still contains a lot of organic matter especially inside the Cells of microorganisms. This organic cellin Ingredients are difficult to attack biologically.

Durch die Behandlung der Schlämme mit Ultraschall wer­ den sowohl Primär-, Überschuß- als auch Faulschlamm in der Zellstruktur so zerstört, daß weitgehend nur noch die leeren Zellhüllen als absetzbare Stoffe übrig bleiben, während der größte Teil in echte oder kol­ loidale Lösungen übergeht. Im Gegensatz zu den nicht mit Ultraschall behandelten Schlämmen lassen sich die Restschlämme leichter und besser entwässern. Zur Ent­ wässerung ist ein geringerer Einsatz von Konditionie­ rungsmitteln notwendig.By treating the sludges with ultrasound who the both primary, excess and digested sludge in the cell structure so destroyed that largely only the empty cell shells remain as removable substances stay while most in real or col loidal solutions passes. Unlike that, not sludges treated with ultrasound Drain sludge more easily and better. To ent Watering is less use of conditioning means necessary.

Die in echte oder kolloidale Lösung gegangenen Stoffe können erneut einem mikrobiologischen Abbau unterwor­ fen werden. Dies kann zum einen im aeroben biologi­ schen Teil einer Kläranlage geschehen (Belebtschlamm-, Tropfköperverfahren), vorzugsweise dort aber als Pro­ tonendonator für die Denitrifikation dienen. Dadurch wird das oft ungünstige Verhältnis zwischen leicht ab­ baubaren Verbindung und dem Nitratgehalt des nitrifi­ zierten Abwassers verbessert. Eine weitere Möglichkeit besteht darin, die echt oder kolloidal gelösten orga­ nischen Stoffe gemeinsam mit den anfallenden Schlämmen auszufaulen und so zur Erzeugung von Biogas heranzu­ ziehen, das zur Energieerzeugung genutzt werden kann.The substances that have gone into real or colloidal solution can again subject to microbiological degradation be opened. On the one hand, this can be in the aerobic biological part of a sewage treatment plant (activated sludge, Drip twill process), but preferably there as a pro clay donor for denitrification. Thereby the often unfavorable relationship between slightly decreases buildable compound and the nitrate content of the nitrifi decorated wastewater improved. One more way consists of the real or colloidally solved orga substances together with the resulting sludge digestion and thus used to produce biogas pull that can be used to generate energy.

Claims (11)

1. Verfahren zur Zerstörung der zellulären Struktur von Suspensionen von Mikroorganismen, dadurch gekenn­ zeichnet, daß diese Zerstörung durch Einwirkung von Ultraschall auf die Suspension geschieht.1. A method for destroying the cellular structure of suspensions of microorganisms, characterized in that this destruction occurs by the action of ultrasound on the suspension. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Einwirkung von Ultraschall auf Schlämme aus biologischen Kläranlagen geschieht.2. The method according to claim 1, characterized in that that the impact of ultrasound on sludges biological treatment plants. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Behandlung mit dem Ziel geschieht, die im Zellinneren vorhandenen Stoffe in echte oder kolloidale Lösung zu bringen, um so die anfallenden Schlammengen zu verringern.3. The method according to claims 1 and 2, characterized characterized that treatment with the aim happens, the substances present in the cell interior to bring real or colloidal solution so as to reduce the amount of sludge. 4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß Ultraschall auf Überschußschlamm aus biologischen Kläranlagen einwirkt.4. The method according to claims 1 to 3, characterized characterized that ultrasound on excess sludge from biological sewage treatment plants. 5. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß Ultraschall auf Primärschlamm aus biologischen Kläranlagen einwirkt.5. The method according to claims 1 to 3, characterized characterized by ultrasound on primary sludge biological sewage treatment plants. 6. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß Ultraschall auf Faulschlamm aus biologischen Kläranlagen einwirkt. 6. The method according to claims 1 to 3, characterized characterized that ultrasound on digested sludge biological sewage treatment plants.   7. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß Ultraschall auf ein vollständiges oder teilweises Gemisch aus Überschußschlamm, Primärschlamm und/oder Faulschlamm aus biologischen Kläranlagen einwirkt.7. The method according to claims 1 to 3, characterized characterized that ultrasound on a whole or a partial mixture of excess sludge, Primary sludge and / or digested sludge from biological Wastewater treatment plants. 8. Verfahren nach den Ansprüchen 1 bis 3 sowie einem der Ansprüche nach 4 bis 7, dadurch gekennzeichnet, daß durch die Zerstörung der zellulären Struktur Zellinhaltsstoffe in echte oder kolloidale Lösung gehen und so innerhalb einer biologischen Kläranlage einem weiteren biologischen Ab- oder Umbau unterworfen werden können.8. The method according to claims 1 to 3 and one of claims 4 to 7, characterized in that that by destroying the cellular structure Cell ingredients in real or colloidal solution go and so inside a biological wastewater treatment plant undergo further biological degradation or remodeling can be. 9. Verfahren nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß die freigesetzten Zellinhaltsstoffe einer anaeroben Fermentation (Faulung) unterworfen werden, so daß energetisch nutzbares Biogas (in der Hauptsache Methan) freigesetzt werden kann.9. The method according to claims 1 to 8, characterized characterized that the released Cell contents of an anaerobic fermentation (Putrefaction), so that energetic usable biogas (mainly methane) can be released. 10. Verfahren nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß die freigesetzten Zellinhaltsstoffe als Protonendonatoren innerhalb einer biologischen Kläranlage im Deni­ trifikationsbecken oder im Denitrifikationsteil zuge­ setzt werden.10. The method according to claims 1 to 8, characterized characterized that the released Cell ingredients as proton donors within a biological wastewater treatment plant in Deni trification basin or in the denitrification section be set. 11. Anspruch nach 1 bis 8, dadurch gekennzeichnet, daß sich die verbleibenden absetzbaren Stoffe (Restschlamm) leichter und besser entwässern lassen als die ursprünglichen Schlämme, sowie dadurch, daß sich der Einsatz von Konditionierungsmittel zur Ent­ wässerung verringert.11. Claim according to 1 to 8, characterized in that the remaining settable substances Drain (residual sludge) more easily and better than the original sludges, and in that  the use of conditioning agents for ent watering reduced.
DE4205739A 1992-02-25 1992-02-25 METHOD FOR DESTRUCTING CELLULAR STRUCTURES OF SUSPENSIONS OF MICROORGANISMS BY ULTRASOUND, ESPECIALLY SLUDES FROM BIOLOGICAL WASTEWATER PLANTS Withdrawn DE4205739A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4205739A DE4205739A1 (en) 1992-02-25 1992-02-25 METHOD FOR DESTRUCTING CELLULAR STRUCTURES OF SUSPENSIONS OF MICROORGANISMS BY ULTRASOUND, ESPECIALLY SLUDES FROM BIOLOGICAL WASTEWATER PLANTS
PCT/EP1993/000439 WO1993016958A1 (en) 1992-02-25 1993-02-25 Sludge treatment or destruction of the cellular structure of microorganisms by ultra-sounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4205739A DE4205739A1 (en) 1992-02-25 1992-02-25 METHOD FOR DESTRUCTING CELLULAR STRUCTURES OF SUSPENSIONS OF MICROORGANISMS BY ULTRASOUND, ESPECIALLY SLUDES FROM BIOLOGICAL WASTEWATER PLANTS

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19502856A1 (en) * 1995-01-30 1996-08-01 Vit Robert Waste water treatment plant producing more methane and less sludge
WO1996023736A1 (en) * 1995-01-30 1996-08-08 Robert Vit Device and process for thickening and conveying waste water sludges
DE19517381C1 (en) * 1995-05-11 1996-11-07 Tesser Kurt Dipl Ing Fh Commercial scale ultrasonic reactor for sludge treatment
EP0989097A1 (en) * 1998-09-25 2000-03-29 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method for preventing the floating and blowing sludge production and/or for eliminating floating and blowing sludge in purification plants
EP1008560A1 (en) * 1998-12-09 2000-06-14 AW Creative Technologies Limited Biological removal of phosphorus from waste water
US7387719B2 (en) 2001-04-24 2008-06-17 Scimist, Inc. Mediated electrochemical oxidation of biological waste materials
US7479215B2 (en) 2002-01-24 2009-01-20 Scimist, Inc. Mediated electrochemical oxidation of halogenated hydrocarbon waste materials
US7488409B1 (en) 2001-10-05 2009-02-10 Scimist, Inc. Mediated electrochemical oxidation of animal waste materials
DE102007000824A1 (en) 2007-10-05 2009-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for improving the disintegration of thixotropic suspensions by means of ultrasound
US7517445B2 (en) 2001-10-09 2009-04-14 Scimist, Inc. Mediated electrochemical oxidation of food waste materials
US7531708B2 (en) 2002-07-29 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation for decontamination
US7531080B2 (en) 2002-01-24 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation used for sterilization/disinfection
US7531710B2 (en) 2002-09-10 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation of inorganic materials
WO2009065509A1 (en) * 2007-11-20 2009-05-28 J.F. Knauer Industrie-Elektronik Gmbh Method and device for treating sludge
US7611620B2 (en) 2001-10-22 2009-11-03 Scimst, Inc. Mediated electrochemical oxidation of organic waste materials
US7691251B2 (en) 2002-01-24 2010-04-06 Scimist, Inc. Mediated electrochemical oxidation and destruction of sharps
US7871508B2 (en) 2002-04-26 2011-01-18 Scimist, Inc. Mediated electrochemical oxidation process used as a hydrogen fuel generator
US8414748B2 (en) 2003-06-10 2013-04-09 Scimist, Inc. Apparatus and process for mediated electrochemical oxidation of materials
DE102015114510A1 (en) 2015-08-31 2017-03-02 Agraferm Technologies Ag Device and reduction of foaming in a biogas fermenter
CN114772883A (en) * 2022-05-16 2022-07-22 中国矿业大学 Treatment method of black and odorous water body bottom mud and application of black and odorous water body bottom mud in preparation of baking-free bricks

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407564A1 (en) * 1994-03-08 1995-09-14 Toni Dr Gradl Oxidn. of organic substances in sewage plant sludge

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DE2455633C3 (en) * 1974-01-07 1981-01-29 Telecommunications Industries, Inc., Copiague, N.Y. (V.St.A.) Method and device for killing germs in wastewater
US4747920A (en) * 1984-06-20 1988-05-31 Battelle Memorial Institute Solid-liquid separation process for fine particle suspensions by an electric and ultrasonic field
DE3919176A1 (en) * 1988-09-16 1990-03-22 Fujita Corp Anaerobic breakdown of sludge - by solubilisation of sludge, feeding to anaerobic putrefaction tank etc.

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023736A1 (en) * 1995-01-30 1996-08-08 Robert Vit Device and process for thickening and conveying waste water sludges
DE19502856A1 (en) * 1995-01-30 1996-08-01 Vit Robert Waste water treatment plant producing more methane and less sludge
DE19517381C1 (en) * 1995-05-11 1996-11-07 Tesser Kurt Dipl Ing Fh Commercial scale ultrasonic reactor for sludge treatment
EP0989097A1 (en) * 1998-09-25 2000-03-29 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method for preventing the floating and blowing sludge production and/or for eliminating floating and blowing sludge in purification plants
DE19843862A1 (en) * 1998-09-25 2000-03-30 Fraunhofer Ges Forschung Process for preventing the formation of floating and / or expanded sludge and / or removing floating and expanded sludge in sewage treatment plants
EP1008560A1 (en) * 1998-12-09 2000-06-14 AW Creative Technologies Limited Biological removal of phosphorus from waste water
US7387719B2 (en) 2001-04-24 2008-06-17 Scimist, Inc. Mediated electrochemical oxidation of biological waste materials
US7488409B1 (en) 2001-10-05 2009-02-10 Scimist, Inc. Mediated electrochemical oxidation of animal waste materials
US7517445B2 (en) 2001-10-09 2009-04-14 Scimist, Inc. Mediated electrochemical oxidation of food waste materials
US7611620B2 (en) 2001-10-22 2009-11-03 Scimst, Inc. Mediated electrochemical oxidation of organic waste materials
US7531080B2 (en) 2002-01-24 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation used for sterilization/disinfection
US7479215B2 (en) 2002-01-24 2009-01-20 Scimist, Inc. Mediated electrochemical oxidation of halogenated hydrocarbon waste materials
US7691251B2 (en) 2002-01-24 2010-04-06 Scimist, Inc. Mediated electrochemical oxidation and destruction of sharps
US7871508B2 (en) 2002-04-26 2011-01-18 Scimist, Inc. Mediated electrochemical oxidation process used as a hydrogen fuel generator
US7531708B2 (en) 2002-07-29 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation for decontamination
US7531710B2 (en) 2002-09-10 2009-05-12 Scimist, Inc. Mediated electrochemical oxidation of inorganic materials
US8414748B2 (en) 2003-06-10 2013-04-09 Scimist, Inc. Apparatus and process for mediated electrochemical oxidation of materials
DE102007000824A1 (en) 2007-10-05 2009-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for improving the disintegration of thixotropic suspensions by means of ultrasound
WO2009065509A1 (en) * 2007-11-20 2009-05-28 J.F. Knauer Industrie-Elektronik Gmbh Method and device for treating sludge
DE102015114510A1 (en) 2015-08-31 2017-03-02 Agraferm Technologies Ag Device and reduction of foaming in a biogas fermenter
WO2017036824A1 (en) 2015-08-31 2017-03-09 Agraferm Technologies Ag Device for reducing foaming in a biogas fermenter
CN114772883A (en) * 2022-05-16 2022-07-22 中国矿业大学 Treatment method of black and odorous water body bottom mud and application of black and odorous water body bottom mud in preparation of baking-free bricks
CN114772883B (en) * 2022-05-16 2023-09-05 中国矿业大学 Treatment method of black and odorous water body substrate sludge and application of black and odorous water body substrate sludge in preparation of baking-free bricks

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