DE3326607A1 - System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts - Google Patents

System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts

Info

Publication number
DE3326607A1
DE3326607A1 DE19833326607 DE3326607A DE3326607A1 DE 3326607 A1 DE3326607 A1 DE 3326607A1 DE 19833326607 DE19833326607 DE 19833326607 DE 3326607 A DE3326607 A DE 3326607A DE 3326607 A1 DE3326607 A1 DE 3326607A1
Authority
DE
Germany
Prior art keywords
tub
covers
insulating material
drive
outer molds
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Withdrawn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
DE19833326607
Other languages
German (de)
Inventor
Johannes Dipl.-Ing. 8967 Oy-Mittelberg Cürten
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19833326607 priority Critical patent/DE3326607A1/en
Publication of DE3326607A1 publication Critical patent/DE3326607A1/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Withdrawn legal-status Critical Current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
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • 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
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B01F35/4122—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the side walls of the receptacle
    • 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
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/44—Multiple separable units; Modules
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02—Stirrer or mobile mixing elements
    • C12M27/06—Stirrer or mobile mixing elements with horizontal or inclined stirrer shaft or axis
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the vessel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Microbiology (AREA)
  • Genetics & Genomics (AREA)
  • Sustainable Development (AREA)
  • Biochemistry (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Clinical Laboratory Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Biogas units can be made of concrete, in order to avoid corrosion problems. They achieve thereby a very long working life. In order to reduce the high costs of individual on-site concrete constructions and to achieve a simple sealing of the gas bell, a system is described of prefabricated concrete elements having integral thermal insulation, which permits economical assembly in standardised sizes.

Description

System zum Bau von Biogasalagen mit liegendem BehälterSystem for the construction of biogas plants with a horizontal tank

aus Betonfertigteilen.made of precast concrete parts.

Biogasanlagen bestehen aus einem Behälter in den die auszufaulende Biomasse unter Sauerstoff- und Lichtausschluß eingebracht wird,so daß unter Zuführung von Wärme die anaerobe Fermentation und Methanbildung stattfinden kann.Biogas plants consist of a container in which the to be digested Biomass is introduced with exclusion of oxygen and light, so that under supply from heat the anaerobic fermentation and methane formation can take place.

Das Verfahren der Methangewinnung aus Biomasse ist hinreichend bekannt und in der Literatur umfangreich beschrieben.Die Behälter können danach in liegender oder stehender Ausführung in Metall,Kunststoff,Mauerwerk oder Beton gebaut werden.Beton hat den Vorteil,daß es keine Festigkeits-und Korrosionsprobleme gibt.Nachteile dagegen sind teure Ortbetonkonstruktionen,schwierige Abdichtung des Gasraumes und Isolationsprobleme.The process of methane production from biomass is well known and extensively described in the literature. The containers can then be placed horizontally or standing design in metal, plastic, masonry or concrete. Concrete has the advantage that there are no strength or corrosion problems. Disadvantages on the other hand are expensive in-situ concrete structures, difficult sealing of the gas space and insulation problems.

Aufgabe der vorliegenden Erfindung ist es ein System von Bauelementen darzustellen,die es erlauben,daß sie in standardisierten Größen vorgefertigt werden und einfach sowie gasdicht am Aufstellungsort zusammengesetzt werden können.The object of the present invention is a system of components that allow them to be prefabricated in standardized sizes and can be assembled easily and gas-tight at the installation site.

Die Aufgabe wird erfindungsgemäß so gelöst,daß der Behälter in eine Wanne und in eine oder mehrere haubenförmige Abdeckungen unterteilt wird.Der Behälter hat eine liegende Form.Die Wanne kann aus mehreren unmittelbar in Außenformen aus Isoliermaterial vergossenen Fertigbetonelementen bestehen,die am Aufstellungsort miteinander verbunden und abgedichtet gegen Wasser werden oder es können vor Ort die vorgefertigten Außenformen aus Isoliermaterial mit Beton ausgegossen werden,so daß eine homogene Wanne entsteht.Die Abdeckungen können in gleicher Weise in Außenformen aus Isoliermaterial geossen werden oder als Fertigelement nach Montage isoliert werden.Die Abdeckungen sind so gestaltet, daß sie einen nach unten offenen Hohlraum bilden,der mit einem gasdichten Anstrich vor Montage versehen wird.Erfindungsgemäß werden die Abdeckungen so in die Wanne eingestellt, daß sich der untere Rand der Abdeckungen immer unterhalb des Flüssigkeitsspiegels befindet und sich somit eine natürliche Abdichtung des Gasraumes durch die Flüssigkeit ergibt.The object is achieved so that the container in a Tub and divided into one or more hood-shaped covers. The container has a horizontal shape. The tub can be made up of several directly into external shapes Insulating material cast precast concrete elements exist at the place of installation can be connected to each other and sealed against water or it can be on site the prefabricated outer forms made of insulating material are poured with concrete, so that a homogeneous tub is created. The covers can be shaped in the same way can be cast from insulating material or isolated as a prefabricated element after assembly The covers are designed so that they have a downwardly open cavity Form, which is provided with a gas-tight coating before assembly. According to the invention the covers are placed in the tub in such a way that that the The lower edge of the covers is always below the liquid level and this results in a natural sealing of the gas space by the liquid.

Die Erfindung wird an einem möglichen Ausführungsbeispiel zeichnerich dargestellt und weiter erläutert.Es zeigen: Fig.l Gesamtsystem im Längsschnitt Fig.2 Gesamtsystem im Querschnitt Fig.3 Teildraufsicht Die auf der Wanne (1) befindlichen haubenförmigen Abdeckungen (2-) werden erfindungsgemäß vorzugsweise in Hutform ausgeführt.Die Gasräume sind mittels Kanälen,vorzugsweise Rohren (3) miteinander verbunden.Durch Einbringen von Ventilen (4) in diesen Kanälen,kann der Gasdruck in den einzelnen Gasräumen variiert werden.Die Abdeckungen haben alle die gleiche Form.Die Außenformen der Wanne aus Isoliermaterial (5) bestehen aus zwei gleichen Endstücken und einem oder mehreren gleichen Mittelstücken.Gleiches gilt auch für die Betonfertigteile der Wanne.The invention is illustrated using a possible exemplary embodiment shown and further explained. It shows: Fig.l overall system in longitudinal section Fig.2 Overall system in cross-section Fig. 3 Partial plan view The ones on the tub (1) Dome-shaped covers (2-) are preferably designed according to the invention in the shape of a hat Gas spaces are connected to one another by means of channels, preferably pipes (3) Introducing valves (4) in these channels, the gas pressure in the individual Gas compartments can be varied. The covers all have the same shape. The outer shapes the tub made of insulating material (5) consist of two identical end pieces and one or several identical middle pieces. The same applies to the precast concrete parts the tub.

Der Antrieb (6) für das Rührwerk (7),das zur Vermeidung von Schwimmdecken und Sedimentationen erforderlich ist,ist erfindungsgemäß so gestaltet,daß der Getriebemotor über eine, in das Substrat eintauchende Kette (8) das Rührwerk bewegt.The drive (6) for the agitator (7), which is used to avoid floating ceilings and sedimentation is required, is designed according to the invention so that the gear motor The agitator is moved by a chain (8) dipping into the substrate.

Bei größeren Anlagen,können an beiden Anlagenenden Antriebe sein.Die Rührwerkwellen können dann getrennt sein,wobei die freien Wellenenden ein gemeinsames Auflager haben können (9).In the case of larger systems, there can be drives at both ends of the system Agitator shafts can then be separate, with the free shaft ends sharing a common one May have supports (9).

Die Abdeckungen können auch aus Metall,vornehmlich Stahl,oder Kunststoff gefertigt sein.Sie können zur Aufnahme von Nutzlasten gestaltet sein.Gleiches gilt für den hochgezogenen Wannenrand (l-O).Der Wannenquerschnitt kann rund (ll),oval(12) oder ausgebuchtet sein um Wärmetauscher (13) aufzunehmen.The covers can also be made of metal, mainly steel, or plastic They can be designed to accommodate payloads. The same applies for the raised tub rim (l-O). The tub cross-section can be round (ll), oval (12) or be bulged to accommodate the heat exchanger (13).

Die Abdichtung von Ein- und Auslauf gegenüber dem Wannenrand erfolgt durch je zwei Trennwände die bei Montage eingesetzt werden (14).The inlet and outlet are sealed against the edge of the tub with two partitions each that are used during assembly (14).

Claims (19)

Patentansprüche 9 System von Fertigteilen zum Bau von Behältern zur Erzeugung von Biogas dadurch gekennzeichnet,daß der Behälter in ein oder mehrere Wannenteile und in ein oder mehrere haubenförmige nach unten offene Abdeckungen aufgeteilt ist. Claims 9 system of prefabricated parts for the construction of containers Generation of biogas characterized in that the container in one or more Tub parts and in one or more hood-shaped downwardly open covers is divided. 2.System nach Anspruch 1 dadurch gekennzeichnet,daß der Beton für die Wannenteile in vorgefertigte Außenformen aus Isoliermaterial gegossen werden und diese zusammen verbleiben. 2.System according to claim 1, characterized in that the concrete for the tub parts are poured into prefabricated outer molds made of insulating material and they stay together. 3.System nach Anspruch 1 und 2 dadurch gekennzeichnet,daß der Beton für die Wannen auch vor Ort in die montierten Außenformen aus Isoliermaterial gegossen wird. 3.System according to claim 1 and 2, characterized in that the concrete For the tubs, it is also poured into the mounted outer molds made of insulating material on site will. 4.System nach Anspruch 1 dadurch gekennzeichnet,daß die Auflager der Abdeckungen in der Wanne,bzw der untere Rand der Abdeckungen,sich immer unterhalb des Flüssigkeitsspiegels befindet. 4.System according to claim 1, characterized in that the supports the covers in the tub, or the lower edge of the covers, is always below of the liquid level. 5.System nach Anspruch 1 und 4 dadurch gekennzeichnet,daß die Abdeckungen ebenfalls in vorgefertigte Außenformen aus Isoliermaterial gegossen werden. 5.System according to claim 1 and 4, characterized in that the covers can also be poured into prefabricated outer molds made of insulating material. 6.System nach Anspruch 1,4 und 5 dadurch gekennzeichnet,daß die Abdeckungen durch Kanäle miteinander verbunden sind. 6.System according to claim 1,4 and 5, characterized in that the covers are connected by channels. 7.System nach Anspruch 6 dadurch gekennzeichnet,daß in die Kanäle einstellbare Druckventile,bzw.festeingestellte Druckventile eingebracht sind. 7.System according to claim 6, characterized in that in the channels adjustable pressure valves or fixed pressure valves are installed. 8.Behälter nach Anspruch 1 dadurch gekennzeichnet,daß der Wannenboden rund ist. 8.Behälters according to claim 1, characterized in that the tub bottom is round. 9.Behälter nach Anspruch 1 dadurch gekennzeichnet,daß der Wannenboden oval oder eingebuchtet ist und in dem gegen über der kreisform entstandenen Raum,Wärmetauscher verlegt sind. 9. Container according to claim 1, characterized in that the tub bottom is oval or indented and in the space created opposite the circular shape, heat exchanger are relocated. lO.Behälter nach Anspruch 1 bis 3 dadurch gekennzeichnet,daß der Wannenrand statisch und konstruktiv so ausgelegt ist, daß Aufbauten vorgenommen werden können.lO.Behälters according to claim 1 to 3, characterized in that the tub edge statically and structurally is designed so that superstructures can be made. ll.Behälter nach Anspruch 1,4 und 5 dadurch gekennzeichnet, daß die Abdeckungen statisch und konstruktiv so ausgelegt sind,daß sie Nutzlasten aufnehmen können.ll.Behälters according to claim 1,4 and 5, characterized in that the Covers are designed statically and structurally so that they take up payloads can. 12.Abdeckungen nach Anspruch 1,4,5,11 dadurch gekennzeichnet, daß sie hutförmig ausgebildet sind.12.Abdeckungen according to claim 1,4,5,11 characterized in that they are hat-shaped. 13.Abdeckungen nach Anspruch 1,4,11,12 dadurch gekennzeichnet, daß sie auch aus Metall oder Kunststoff hergestellt und mit einer Wärmeisolierung versehen sind.13.Abdeckungen according to claim 1,4,11,12 characterized in that they are also made of metal or plastic and provided with thermal insulation are. 14.Rührwerkantrieb dadurch gekennzeichnet,daß die Antriebskette durch die flüssige Biomasse im Ein- oder Auslauf geführt die Rührwerkwelle antreibt.14. stirrer drive characterized in that the drive chain through the liquid biomass guided in the inlet or outlet drives the agitator shaft. 15.Rührwerkantrieb nach Anspruch 14 dadurch gekennzeichnet, daß sich an jedem Behälterende ein Antrieb befindet.15. agitator drive according to claim 14, characterized in that there is a drive at each end of the container. 16.Rührwerkantrieb nach Anspruch 14 und 15 dadurch gekennzeichnet,daß die Rührwerkwelle geteilt ist und die beiden Wellenenden ein gemeinsames Auflager haben können.16. stirrer drive according to claim 14 and 15, characterized in that the agitator shaft is divided and the two shaft ends have a common support can have. 17.System nach Anspruch 1 dadurch gekennzeichnet,daß sich die Wanne aus zwei gleichen Endstücken und einer beliebigen Anzahl gleicher Mittelstücke zusammensetzen läßt.17.System according to claim 1, characterized in that the tub Assemble from two identical end pieces and any number of identical middle pieces leaves. 18.System nach Anspruch 17 dadurch gekennzeichnet,daß sich dies im Falle des Gießens der Wanne vor Ort,nur auf die Außenformen aus Isoliermaterial bezieht.18.System according to claim 17, characterized in that this is in Case of pouring the tub on site, only on the outer molds made of insulating material relates. 19.System nach Anspruch 1 dadurch gekennzeichnet,daß bei Verwendung mehrerer Abdeckungen in einer Anlage,diese alle gleich nach Größe und Form sind.19.System according to claim 1, characterized in that when using several covers in one system, all of which are the same in size and shape.
DE19833326607 1983-07-23 1983-07-23 System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts Withdrawn DE3326607A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833326607 DE3326607A1 (en) 1983-07-23 1983-07-23 System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833326607 DE3326607A1 (en) 1983-07-23 1983-07-23 System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts

Publications (1)

Publication Number Publication Date
DE3326607A1 true DE3326607A1 (en) 1985-01-31

Family

ID=6204750

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833326607 Withdrawn DE3326607A1 (en) 1983-07-23 1983-07-23 System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts

Country Status (1)

Country Link
DE (1) DE3326607A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770675B1 (en) * 1995-09-11 1998-01-14 Walter Schmid Fermenter for anaerobic fermentation
DE19915350A1 (en) * 1999-04-06 2000-10-19 Karl Weitz Thermal insulation of a biogas reactor comprises pouring concrete into an annular space containing foam boards and reinforcing mats

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770675B1 (en) * 1995-09-11 1998-01-14 Walter Schmid Fermenter for anaerobic fermentation
DE19915350A1 (en) * 1999-04-06 2000-10-19 Karl Weitz Thermal insulation of a biogas reactor comprises pouring concrete into an annular space containing foam boards and reinforcing mats
DE19915350B4 (en) * 1999-04-06 2005-06-23 Karl Weitz Thermal insulation of cylindrical cast-in-situ constructions

Similar Documents

Publication Publication Date Title
DE1954717A1 (en) Process for the manufacture of refractory parts
DE3326607A1 (en) System for the construction of biogas units having a horizontal vessel made of prefabricated concrete parts
DE2435521A1 (en) STEEL-CONCRETE COMPOSITE ELEMENT FOR LINING CONTAINERS SUCH AS STORAGE POOLS, REACTOR PRESSURIZED CONCRETE VESSELS OR THE LIKE.
DE1934164A1 (en) Closed sludge digester - for sewage sludge or the like
DE3802964A1 (en) STANDING CYLINDRICAL CONTAINER MADE OF REINFORCED CONCRETE, IN PARTICULAR FOR THE STORAGE OF LIQUIDS
LU504908B1 (en) LARGE VOLUME PILE HEAT HYDRATION CONTROL DEVICE
CH409353A (en) Container made from a set of precast reinforced concrete elements
DE3341027A1 (en) Apparatus for producing biogas and/or fertiliser
DE19915350B4 (en) Thermal insulation of cylindrical cast-in-situ constructions
DE606253C (en) Process for the production of hollow stone ceiling beams
CH409801A (en) Process for the production of sewage digesters and sewage digesters produced according to the method
DE102010023211A1 (en) Long-term energy storage
DE891071C (en) Heatable formwork made of sheet steel or the like for the production of concrete bodies
DE3209010C1 (en) Container
DE339342C (en) Saturation vessel for the production of sulfuric acid ammonia
AT376696B (en) PLANT FOR ANAEROBIC FERMENTATION OF ILLUSTRATIVE SUBSTANCES, IN PARTICULAR FOR THE PRODUCTION OF BIOMETHANE GAS
DE2258507A1 (en) CONTAINER FOR WATER SUPPLY SYSTEMS
DE2525909C3 (en) Sewage treatment plant
DE884628C (en) Duct for pipelines and process for its manufacture
DE471254C (en) Process for the production of Saetteln for storey storage of tanks, Gaerbottichen o.
DE2847229C2 (en) Trickling filters for biological sewage treatment plants
DE3528842A1 (en) Reinforcement
DE2525700A1 (en) MOLD FOR PRODUCING MOLDED PIECES, IN PARTICULAR BRICKS
CH424638A (en) Liquid container and process for its manufacture
DE3011099A1 (en) Sewage plant septic tank with tapered bottom - has draw rings clamping prefab. curved shell sections joined by edge ribs

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee