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DE2920540A1 - METHOD AND DEVICE FOR THE PROCESSING OF LIQUID MANURE - Google Patents

METHOD AND DEVICE FOR THE PROCESSING OF LIQUID MANURE

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Publication number
DE2920540A1
DE2920540A1 DE19792920540 DE2920540A DE2920540A1 DE 2920540 A1 DE2920540 A1 DE 2920540A1 DE 19792920540 DE19792920540 DE 19792920540 DE 2920540 A DE2920540 A DE 2920540A DE 2920540 A1 DE2920540 A1 DE 2920540A1
Authority
DE
Germany
Prior art keywords
liquid manure
temperature
supplied
oxygen
inspected
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Withdrawn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
DE19792920540
Other languages
German (de)
Inventor
Sten Ing Haegblom
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.)
Alfa Laval Stalltechnik GmbH
Original Assignee
Alfa Laval Stalltechnik 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 Alfa Laval Stalltechnik GmbH filed Critical Alfa Laval Stalltechnik GmbH
Publication of DE2920540A1 publication Critical patent/DE2920540A1/en
Withdrawn legal-status Critical Current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
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C3/00—Treating manure; Manuring
    • A01C3/02—Storage places for manure, e.g. cisterns for liquid manure; Installations for fermenting manure
    • A01C3/023—Digesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2335—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer
    • B01F23/23351—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer the gas moving along the axis of rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2335—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer
    • B01F23/23353—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the direction of introduction of the gas relative to the stirrer the gas being sucked towards the rotating stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23363—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced above the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2215—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Soil Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental Sciences (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)

Description

Verfahren und Vorrichtung zur Aufbereitung von FlüssigmistMethod and device for processing liquid manure

Die Erfindung bezieht sich auf ein Verfahren zur Aufbereitung von aus Exkrementen, wie Kot oder Harn, bestehendem Flüssigmist, bei welchem ein sauerstoffhaltiges Gas zugeführt wird und die aufgrund der durch die Sauerstoffzufuhr ermöglichten Aktivitäten von Mikroorganismen entstehende Wärmeentwicklung geregelt wird, wobei ein überschreiten einer maximalen Temperatur von 38° vermieden wird.The invention relates to a method for processing liquid manure consisting of excrement, such as feces or urine, in which an oxygen-containing gas is supplied and made possible by the oxygen supply Activities of microorganisms developing heat is regulated, whereby a maximum temperature is exceeded of 38 ° is avoided.

Der als Düngemittel verwendete Flüssigmist verliert während der Lagerung und Ausbringung bis zur Aufnahme durch die Pflanzen viele Nährstoffe. Wird der Flüssigmist unter Luftverschluß gehalten, kommt es zu einer anaeroben Vergärung, bei welcher die organischen Substanzen über Spaltprodukte in übelriechende Endprodukte zerlegt werden. Diese Endprodukte sind zu einem großen Teil gasförmig, weshalb diese bei jeder Art der Flüssigkeitsbewegung in die Luft treten. Dadurch kommt es nicht nur zu einer Geruchsbelästigung und Umweltbelastung sondern auch zu einem Entweichen von für die Düngung wertvollen Nährstoffen, wie etwa Stickstoff in Form von Ammoniak. Anaerob vergorener Flüssigmist verätzt ferner die Pflanzen und ent-The liquid manure used as fertilizer is lost during storage and application until it is absorbed by the plants lots of nutrients. If the liquid manure is kept under airtight seal, anaerobic fermentation occurs, during which the organic substances are broken down into foul-smelling end products via decomposition products. These end products are one largely gaseous, which is why this occurs with every type of liquid movement kick in the air. This not only results in odor nuisance and environmental pollution, but also also to an escape of nutrients valuable for fertilization, such as nitrogen in the form of ammonia. Anaerobic fermented liquid manure also corrodes the plants and

909848/0759 '909848/0759 '

hält Giftstoffe, welche das Bodenleben schädigen.holds toxins that damage soil life.

Um eine anaerobe Vergärung zu verhindern, ist es bekannt, den Flüssigmist unter kontinuierlicher Sauerstoffzufuhr umzuwälzen. Durch die Sauerstoffzufuhr und die Umwälzung werden die Mikroorganismen aktiviert und vermehrt und ein beschleunigter Abbauprozeß eingeleitet, wobei sich der Flüssigmist bei kontinuierlicher Sauerstoffzufuhr auf Temperaturen bis zu 70° C erwärmt.In order to prevent anaerobic fermentation, it is known to circulate the liquid manure with a continuous supply of oxygen. The microorganisms are destroyed by the oxygen supply and the circulation activated and increased and an accelerated degradation process initiated, with the liquid manure at continuous Oxygen supply heated to temperatures of up to 70 ° C.

Die Anmelderin hat nun erkannt, daß bei Überschreiten einer bestimmten Temperatur Stickstoff in Form von Ammoniak aus dem Flüssigmist entweicht, wodurch die Qualität des verbleibenden Flüssigmistes wesentlich vermindert wird.The applicant has now recognized that when a certain Temperature nitrogen in the form of ammonia escapes from the liquid manure, reducing the quality of the remaining Liquid manure is significantly reduced.

Aufgabe der Erfindung ist es, ein Verfahren anzugeben, bei wel- j chem einerseits eine anaerobe Vergärung des Flüssigmistes vermieden, andererseits die für die Düngung wichtigen Stoffe im Flüssigmist erhalten bleiben.The object of the invention is to provide a method in which j chem on the one hand avoids anaerobic digestion of the liquid manure, on the other hand, the substances important for fertilization are retained in the liquid manure.

Dies wird ausgehend von dem eingangs angeführten Verfahren dadurch erreicht, daß dem Flüssigmist kontinuierlich eine zum Überschreiten dieser Temperatur ausreichende Menge an Sauerstoff zugeführt wird und gleichzeitig durch Wärmeentzug die Temperatur unter der angegebenen Temperatur gehalten wird.This is based on the method mentioned at the beginning achieves that the liquid manure continuously an amount of oxygen sufficient to exceed this temperature is supplied and at the same time the temperature is kept below the specified temperature by removing heat.

Erfindungsgemäß können große Sauerstoffmengen kontinuierlichAccording to the invention, large amounts of oxygen can be used continuously

909848/O7S9909848 / O7S9

. . ORIGINAL INSPECTED. . ORIGINAL INSPECTED

29205AO29205AO

dem Flüssigmist, etwa durch Einsaugen von Luft in die Flüssigmistgrube, zugeführt werden, wodurch der Abbauprozeß wesentlich beschleunigt und aufgrund der Kühlung die Düngequalität des Flüssigmistes voll erhalten bleibt.the liquid manure, for example by sucking air into the liquid manure pit, are supplied, whereby the degradation process accelerated significantly and the fertilizer quality of the due to the cooling Liquid manure is fully preserved.

Die Erfindung betrifft auch eine Vorrichtung zur Durchführung des Verfahrens mit einem den Flüssigmist aufnehmenden Behälter und einer Rührvorrichtung, durch welche Luft dem Flüssigmist zuführbar ist und' ist erfindungsgemäß dadurch gekennzeichnet, daß in dem Behälter ein Kühler angeordnet ist, dessen Durchflußmenge von einem Regler in Abhängigkeit von der Temperatur des Flüssigmistes regelbar ist.The invention also relates to a device for carrying out the method with a container receiving the liquid manure and a stirring device through which air can be fed to the liquid manure and is characterized according to the invention that a cooler is arranged in the container, the flow rate of which is controlled by a controller as a function of the temperature the liquid manure is adjustable.

In der Zeichnung ist eine vorzugsweise Ausführungsform einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens dargestellt.In the drawing, a preferred embodiment is one Device for carrying out the method according to the invention shown.

Ein etwa aus Beton bestehender Behälter 1 ist mit Flüssigmist 2 gefüllt. Oberhalb des Flüssigkeitsspiegels befindet sich Schaum 8. In die Flüssigkeit 2 taucht ein Rohr'6, dessen Ende im Bereich des Flüssigkeitsspiegels abgeschrägt ist, so daß wohl Flüssigkeit 2 als auch Schaum 8 in die deckseitige öffnung des Rohres 6 gelangen können. Innerhalb des Rohres 6 ist ein über eine Hohlwelle 5 mit einem Antriebsmotor 3 verbundenes Pumpen-Flügelrad 7 angeordnet. Das Rohr 6 ist durch ein GestängeA container 1 made approximately of concrete is filled with liquid manure 2. Above the liquid level is Foam 8. A tube 6, the end of which is beveled in the area of the liquid level, is immersed in the liquid 2 so that Both liquid 2 and foam 8 can get into the opening of the tube 6 on the cover side. Inside the tube 6 is a Pump impeller 7 connected to a drive motor 3 via a hollow shaft 5 is arranged. The tube 6 is through a linkage

909848/0759909848/0759

ORIGINAL INSPECTEDORIGINAL INSPECTED

292Q540292Q540

9 mit dem Gehäuse des Motors 3 verbunden. Die aus Motor 3, Welle 5, Flügelrad 7 und Rohr 6 gebildete Einheit ist mit Hilfe eines Kreuzgelenkes 4 an einer Halterung befestigt. Die Hohlwelle besitzt nahe dem Motor 3 bzw. nahe dem Flügelrad 7 öffnungen 10, 11 zum Einsaugen bzw. Einblasen von Luft.9 connected to the housing of the motor 3. The unit formed from motor 3, shaft 5, impeller 7 and tube 6 is with the help of a Universal joint 4 attached to a bracket. The hollow shaft has openings 10 near the motor 3 or near the impeller 7, 11 for sucking in or blowing in air.

Bei drehendem Motor 3 wird durch das Flügelrad 7 sowohl Flüssigkeit 2 als auch Schaum 8 in die Einlaßöffnung des Rohres 6 angesaugt. An der Auslaßseite des Rohres wird die über die öffnungen 10 und die Hohlwelle 5 angesaugte Luft in die in Achsrichtung des Rohres 6 verlaufende Strömung mitgerissen. In der Zeichnung wurde die Flüssigkeitsströmung durch durchgezogene und die Bewegung der Luftblasen durch strichlierte Pfeile sehe- ■ matisch angedeutet. Dahei wird die gesamte Flüssigkeit zwischen dem Boden des Behälters 1 und dem Flüssigkeitsspiegel umgewälzt \ When the motor 3 is rotating, both liquid 2 and foam 8 are sucked into the inlet opening of the pipe 6 by the impeller 7. At the outlet side of the tube, the air sucked in via the openings 10 and the hollow shaft 5 is entrained in the flow running in the axial direction of the tube 6. In the drawing, the liquid flow is indicated by solid arrows and the movement of the air bubbles by dashed arrows. As a result, the entire liquid is circulated between the bottom of the container 1 and the liquid level \

und mit· Luft angereichert. ;and enriched with · air. ;

! Mit 12 ist ein aus einem spiralförmig geformten Rohr bestehen- j! At 12 there is a tube consisting of a spiral shape

der Kühler bezeichnet, welcher von Kühlwasser durchflossen ; wird. Die Temperatur des Flüssigmistes wird durch einen Temperaturfühler 13 gemessen und einem Regler 15 zugeführt, welcher die Durchflußmenge des Kühlwassers durch die Kühler 12 derart regelt, daß die Temperatur des Flüssigmistes unter einer Temperatur von 38° C bleibt. Das bei 14 austretende Wasser, kann vorzugsweise unter Zwischenschaltung einer Wärmepumpe (nicht ge-the cooler denotes through which cooling water flows; will. The temperature of the liquid manure is measured by a temperature sensor 13 measured and fed to a controller 15, which the flow rate of the cooling water through the cooler 12 in such a way regulates that the temperature of the liquid manure remains below a temperature of 38 ° C. The water exiting at 14 can preferably with the interposition of a heat pump (not

ORIGINAL INSPECTEDORIGINAL INSPECTED

—. *7 —-. * 7 -

zeigt) als Warmwasser für Haushaltszwecke verwendet werden.shows) can be used as hot water for household purposes.

!909848! 909848

ORIGINAL INSPECTEDORIGINAL INSPECTED

LeerseiteBlank page

Claims (3)

Firma ALFA - LAVAL STALLTECKNIK GMBH Postfach 66, A-1121 Wien PatentansprücheCompany ALFA - LAVAL STALLTECKNIK GMBH Postfach 66, A-1121 Vienna Patent claims 1. Verfahr η zur Aufbereitung von aus Exkrementen, wie Kot oder Harn, bestehendem Flüssigmist, bei welchen ein sauerstoff haltiges Gas zugeführt und die aufgrund der durch die Sauerstoffzufuhr ermöglichten Aktivitäten von Mikroorganismen entstehende Wärmeentwicklung geregelt wird, wobei ein Überschreiten einer maximalen Temperatur ·γοη 38° C vermieden wird, dadurch gekennzeichnet, daß dem Flüssigmist kontinuierlich eine zum Überschreiten dieser Temperatur ausreichende Menge an Sauerstoff zugeführt und gleichzeitig durch Wärmeentzug die Temperatur unter der angegebenen Temperatur gehalten wird.1. Method η for processing from excrement, such as feces or urine, existing liquid manure, in which an oxygen-containing gas is supplied and which is due to the the oxygen supply enabled activities of microorganisms resulting heat generation is regulated, whereby a Exceeding a maximum temperature γοη 38 ° C avoided is characterized in that the liquid manure is continuously at a temperature sufficient to exceed this temperature Amount of oxygen supplied and at the same time the temperature below the specified temperature by heat extraction is held. 2. Vorrichtung zum Durchführen des Verfahrens nach Anspruch 1/2. Device for performing the method according to claim 1 / 9098A8/07599098A8 / 0759 : COPY: COPY ORIGINAL INSPECTEDORIGINAL INSPECTED mit einem den Flüssigmist aufnehmenden Behälter und einer Rührvorrichtung, durch welche Luft dem Flüssigmist zuführbar ist, dadurch gekennzeichnet, daß in dem Behälter ein Kühler (12) angeordnet ist, dessen Durchflußmenge von einem Regler (15) in Abhängigkeit von der Temperatur des Flüssigmistes regelbar ist.with a container receiving the liquid manure and a stirring device through which air can be supplied to the liquid manure is, characterized in that a cooler (12) is arranged in the container, the flow rate of which is from one Controller (15) can be regulated as a function of the temperature of the liquid manure. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß zur Herstellung .von Warmwasser der Kühler an eine Wärmepumpe angeschlossen ist.3. Apparatus according to claim 2, characterized in that for the production of .von hot water the cooler to a heat pump connected. 909848/0759909848/0759 ORiGiMAL INSPECTEDORiGiMAL INSPECTED
DE19792920540 1978-05-22 1979-05-21 METHOD AND DEVICE FOR THE PROCESSING OF LIQUID MANURE Withdrawn DE2920540A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT372178A AT359094B (en) 1978-05-22 1978-05-22 METHOD AND DEVICE FOR TREATING LIQUID MIST

Publications (1)

Publication Number Publication Date
DE2920540A1 true DE2920540A1 (en) 1979-11-29

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ID=3554479

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Application Number Title Priority Date Filing Date
DE19792920540 Withdrawn DE2920540A1 (en) 1978-05-22 1979-05-21 METHOD AND DEVICE FOR THE PROCESSING OF LIQUID MANURE

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927015A1 (en) * 1979-07-04 1981-01-08 Alfa Laval Agrar Gmbh Microbiological liq. manure treatment control - by aerator and heat transfer unit regulated for optimum temp.
DE3513480C1 (en) * 1985-04-16 1986-11-13 Michael 2940 Wilhelmshaven Spitz Process for the production of a fertilizer substance that is harmless to groundwater
DE3534420A1 (en) * 1985-09-27 1987-04-02 Joba Stall U Regentechnik Gmbh Appliance for the treatment of liquid manure or liquid dung
WO2019001815A1 (en) * 2017-06-27 2019-01-03 Hans Heidolph GmbH STIRRING UNIT, ESPECIALLY OVERHEAD STIRRERS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721920B1 (en) * 1994-04-18 1996-08-23 Socoag Sarl PROCESS AND PLANT FOR THE BIOLOGICAL TREATMENT OF ANY KIND OF EJECTIONS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR18837E (en) * 1912-04-05 1914-07-11 Giuseppe Beccari Process for obtaining good fermentation of manure
GB487837A (en) * 1936-12-22 1938-06-22 Luigi Boggiano Pico Improvements in or relating to a process for the fermentation of organic matter
FR859900A (en) * 1939-06-03 1940-12-31 Process for the treatment of fermentable products to obtain manure
GB919955A (en) * 1961-11-01 1963-02-27 Joseph Binns Process and apparatus for the treatment of domestic refuse
NL7612373A (en) * 1975-11-12 1977-05-16 Kaelin J R METHOD AND DEVICE FOR THE CONTINUOUS PROCESSING OF WET SLOT RECEIVED FROM A SEGMENT DEVICE.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927015A1 (en) * 1979-07-04 1981-01-08 Alfa Laval Agrar Gmbh Microbiological liq. manure treatment control - by aerator and heat transfer unit regulated for optimum temp.
DE3513480C1 (en) * 1985-04-16 1986-11-13 Michael 2940 Wilhelmshaven Spitz Process for the production of a fertilizer substance that is harmless to groundwater
DE3534420A1 (en) * 1985-09-27 1987-04-02 Joba Stall U Regentechnik Gmbh Appliance for the treatment of liquid manure or liquid dung
WO2019001815A1 (en) * 2017-06-27 2019-01-03 Hans Heidolph GmbH STIRRING UNIT, ESPECIALLY OVERHEAD STIRRERS

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FR2426662A1 (en) 1979-12-21
ATA372178A (en) 1980-03-15
AT359094B (en) 1980-10-27

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