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DE29520958U1 - Separation plant for wastewater loaded with floating and sinking substances - Google Patents

Separation plant for wastewater loaded with floating and sinking substances

Info

Publication number
DE29520958U1
DE29520958U1 DE29520958U DE29520958U DE29520958U1 DE 29520958 U1 DE29520958 U1 DE 29520958U1 DE 29520958 U DE29520958 U DE 29520958U DE 29520958 U DE29520958 U DE 29520958U DE 29520958 U1 DE29520958 U1 DE 29520958U1
Authority
DE
Germany
Prior art keywords
floating
substances
settling
chamber
separating
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.)
Expired - Lifetime
Application number
DE29520958U
Other languages
German (de)
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.)
ACO Ahlmann SE and Co KG
Original Assignee
Passavant Werke AG and Co KG
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 Passavant Werke AG and Co KG filed Critical Passavant Werke AG and Co KG
Priority to DE29520958U priority Critical patent/DE29520958U1/en
Publication of DE29520958U1 publication Critical patent/DE29520958U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • E03F5/16Devices for separating oil, water or grease from sewage in drains leading to the main sewer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/0208Separation of non-miscible liquids by sedimentation
    • B01D17/0214Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/04Breaking emulsions
    • B01D17/045Breaking emulsions with coalescers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0006Settling tanks provided with means for cleaning and maintenance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2405Feed mechanisms for settling tanks
    • B01D21/2411Feed mechanisms for settling tanks having a tangential inlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2433Discharge mechanisms for floating particles
    • B01D21/2438Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2444Discharge mechanisms for the classified liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/0217Separation of non-miscible liquids by centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0003Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012Settling tanks making use of filters, e.g. by floating layers of particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0024Inlets or outlets provided with regulating devices, e.g. valves, flaps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Hydroponics (AREA)

Description

i P 1720 iP 1720

PASSAVANT-WERKE AG
65322 Aarbergen 7
PASSAVANT-WERKE AG
65322 Aarbergen 7

Abscheideanlage für mit Schwimm- und Sinkstoffen befrachtete AbwasserSeparation system for wastewater containing floating and sinking matter

Die Erfindung bezieht sich auf eine Abscheideanlage für mit Schwimm-, wie öl und Benzin u.dgl., und Sinkstoffen befrachtete Abwasser. Derartige Abwasser kommen in vielen Bereichen der Wirtschaft und des Gewerbes vor.The invention relates to a separation system for wastewater loaded with floating matter, such as oil and petrol, etc., and suspended matter. Such wastewater occurs in many areas of industry and commerce.

Es ist Vorschrift, daß diese Abwasser vor ihrer Einleitung in die Kanalisation oder den Vorfluter in einem nach dem Dichtedifferenzprinzip arbeitenden Abscheider behandelt werden müssen, Üblicherweise geschieht dies in einem der Prüfzeichenpflicht unterworfenen Schwimmstoffabscheider und einem diesem vorgeschalteten Schlammfang, wobei die beiden Becken auch in einem gemeinsamen Becken vereinigt sein können (DE 27 10 256 Cl). Für wegen ihres hohen Dispersionsgrades schwierig abzuscheidende Schwimmstoffe werden Koaleszenzeinsätze benutzt, die vorzugsweise hohlzylindrische Form haben und in der Anordnung vor der KLarwasser-Auslauföffnung von außen nach innen durchströmt werden (DE 37 04 911 Cl).It is a requirement that this waste water must be treated in a separator that works according to the density difference principle before it is discharged into the sewer system or the receiving water. This usually takes place in a floating matter separator that is subject to the test mark requirement and a sludge trap that is connected upstream of it, whereby the two basins can also be combined in a common basin (DE 27 10 256 Cl). For floating matter that is difficult to separate due to its high degree of dispersion, coalescence inserts are used, which preferably have a hollow cylindrical shape and are arranged in front of the clear water outlet opening and through which the flow is from the outside to the inside (DE 37 04 911 Cl).

Die übliche Hintereinanderanordnung von zwei Becken hat den Nachteil des hohen Platzbedarfs. Die Überleitung des Abwassers aus dem Schlammfang in den Schwimmstoffabscheider bedeutet eine Beschleunigung und erneute Verwirbelung der Trennstoffe, die die Abtrennung im Schwimstoffabscheider erschweren. Außerdem ist die Entsorgung des Schwimmstoffabscheiders problematisch, weil sich auch dort Sinkstoffe sammeln können, die wegen ihrer kleinenThe usual arrangement of two tanks in series has the disadvantage of requiring a lot of space. The transfer of wastewater from the sludge trap to the floating matter separator means that the separating substances are accelerated and swirled again, which makes separation in the floating matter separator more difficult. In addition, the disposal of the floating matter separator is problematic because sediment can also collect there, which, due to their small size,

Dichtedifferenz zu Wasser im Schlammfang nicht abgetrennt wurden.Density difference to water in the sludge trap was not separated.

Die Aufgabe, die geschilderten Nachteile zu beseitigen, wird erfindungsgemäß durch die in Patentanspruch 1 aufgeführten Merkmale gelöst. Danach ergibt sich eine außerordentlich kompakte platzsparende Abscheideanlage, deren ohne Querschnittsverengung ineinander übergehenden Abscheideräume aufsteigend durchströmt werden. Der Zulauf liegt etwa im oberen Drittel des unteren Sinkstoff-Abscheideraumes, der Klarwasserablauf vorzugsweise zentral im unteren Drittel des oberen Schwimmstoff-Abscheideraumes. Wenn der Zulauf in bevorzugter Ausgestaltung der Erfindung tangential in den Sinkstoff-Abscheideraum mündet, dann stellt sich im Betrieb eine spiralige und aufwärts verlaufende Strömung mit einem besonders langen Abscheideweg ein, der das Absinken bzw. Aufsteigen der Trennstoffe in die strömungslosen Zonen begünstigt. Die Strömung ist in allen Abschnitten laminar und wirbelfrei.The task of eliminating the disadvantages described is solved according to the invention by the features listed in claim 1. This results in an extremely compact, space-saving separation system, whose separation chambers, which merge into one another without a narrowing of the cross-section, are flowed through in an ascending manner. The inlet is located approximately in the upper third of the lower sediment separation chamber, the clear water outlet preferably centrally in the lower third of the upper floating matter separation chamber. If the inlet flows tangentially into the sediment separation chamber in a preferred embodiment of the invention, then a spiral and upward flow with a particularly long separation path is established during operation, which promotes the sinking or rising of the separating substances in the flow-free zones. The flow is laminar and eddy-free in all sections.

Ein weiterer Vorteil dieser neuen Ausgestaltung wird bei der Entsorgung der Trennstoffe spürbar. Die Trennstoffe werden nacheinander aus ein- und demselben Abscheidebecken entnommen. Auch der bei der Totalentleerung notwendige Spülvorgang ist wesentlich vereinfacht. Schließlich ist auch die danach vorgeschriebene Wiederbefüllung mit Klarwasser ohne Umsetzen der Befülleitung durchführbar. Für den Fall, daß in kurzer Zeit große Mengen an Schwimmstoffen anfallen, bietet sich der Sinkstoff-Abscheideraum als zusätzlicher Speicherraum für die Schwimmstoffe an.Another advantage of this new design is noticeable in the disposal of the separating substances. The separating substances are removed one after the other from one and the same separating tank. The rinsing process required for total emptying is also significantly simplified. Finally, the subsequent refilling with clear water, which is also required, can be carried out without moving the filling line. In the event that large quantities of floating substances accumulate in a short period of time, the sediment separating chamber can be used as additional storage space for the floating substances.

Es ist bekannt, daß mit den im Koaleszenzeinsatz zu aufschwimmfähigen Partikeln aggregierten Schwimmstoffen auch Sinkstoffe in kleinster Verteilung herangeführt werden, die an die Schwimmstoffpartikel angelagert sind. Diese Aggregate setzen sich teilweise ohne Trennung im Koaleszenzeinsatz fest und verstopfen diesen zunehmend. Die Aufgabe, die Verstopfung rückgängig zu machen, wird erfindungsgemäß durch eine an sich bekannte Rück-It is known that the floating matter aggregated in the coalescence insert to form floating particles also brings in small amounts of sediment that is attached to the floating matter particles. These aggregates sometimes settle in the coalescence insert without being separated and increasingly clog it. The task of reversing the blockage is achieved according to the invention by a known reverse

spüleinrichtung gelöst, die an der Innenseite des hohlkörperförmigen Koaleszenzeinsatzes installiert ist, Der beim Rückspülvorgang außerhalb des Koaleszenzeinsatzes anfallende Rückspülschlamm kann sich jetzt in die zwei Bestandteile trennen und getrennt in den Totzonen sammeln. Die Sinkstoffe gelangen ohne Zwischenförderung oder Umlenkung auf den Boden des Beckens und können von dort zusammen mit dem vorher angesammelten Schlamm abgesaugt werden.The backwash sludge that accrues outside the coalescence insert during the backwash process can now separate into two components and collect separately in the dead zones. The sediment reaches the bottom of the tank without intermediate conveyance or diversion and can be sucked out from there together with the previously collected sludge.

Die einzige Abbildung zeigt eine bevorzugte Ausführungsform der Erfindung im axialen Vertikalschnitt des als Hohlzylinder ausgeformten Abscheidebeckens 1. Das vorzugsweise in Stahlbeton hergestellte Becken ist oben durch eine dicht angeschlossene Platte 2 abgedeckt. Die Platte enthält eine Wartungsöffnung 3 und einen darauf versetzten Kontrollschacht^ mit Schachtabdekkung 5.The only illustration shows a preferred embodiment of the invention in an axial vertical section of the separating basin 1, which is shaped as a hollow cylinder. The basin, which is preferably made of reinforced concrete, is covered at the top by a tightly connected plate 2. The plate contains a maintenance opening 3 and an inspection shaft^ with shaft cover 5 offset thereon.

Das seitlich über dem Flüssigkeitsspiegel 7 eingeführte Zulauftauchrohr 8 mündet im unteren Drittel des Abscheidebeckens, und zwar mit vorzugsweise tangential ausgerichteter Austrittsöffnung 9. Die Trennung des unteren Sinkstoff-Abscheideraums 10 von dem oberen Schwimmstoff-Abscheideraum 11 ist durch eine Horizontallinie 12 angedeutet. Über dieser Trennlinie liegt zentral der nach unten gerichtete Klarwasser-Auslauf 13, dem ein hohlzylindrischer Koaleszenzfilter 14 und ein Schwimmerverschluß 15 vorgeordnet sind. An der Innenfläche des Koaleszenzfilters 14 liegt die mit Strahldüsen bestückte Rückspüleinrichtung 16, die über den Schlauch 17 mit Spülwasser versorgt wird. Das Auslaufrohr 18 ist wie üblich mit drei 90°-Rohrwinkeln aus dem Becken heraus- und außen hochgeführt, wo die überlaufschwelle für den im Becken eingehaltenen Flüssigkeitsstand sorgt. Das Auslaufrohr 18' kann auch bereits in Höhe der Trennlinie 12 nach außen verlegt werden. Der aufsteigende Ast kann auch innerhalb des Beckens verlaufen und am Scheitelpunkt eine Probenahmestelle enthalten.The inlet immersion pipe 8, which is introduced laterally above the liquid level 7, opens into the lower third of the separation tank, with an outlet opening 9 that is preferably tangentially aligned. The separation of the lower sediment separation chamber 10 from the upper floating matter separation chamber 11 is indicated by a horizontal line 12. Above this dividing line, the downward-facing clear water outlet 13 is located centrally, which is preceded by a hollow cylindrical coalescence filter 14 and a float lock 15. On the inner surface of the coalescence filter 14 is the backwash device 16, which is equipped with jet nozzles and is supplied with flushing water via the hose 17. The outlet pipe 18 is led out of the tank and up to the outside with three 90° pipe angles, as usual, where the overflow threshold ensures that the liquid level in the tank is maintained. The outlet pipe 18' can also be laid outwards at the level of the dividing line 12. The ascending branch can also run inside the basin and contain a sampling point at the apex.

Claims (3)

P 1720 ANSPRUCHEP 1720 CLAIMS 1. Abscheideanlage für mit Schwimm- und Sinkstoffen befrachtete Abwasser, bestehend aus einem beruhigt durchströmten Abscheidebecken (1), das einen seitlichen Zulauf (8), einen Absetzraum (10) für die Sinkstoffe und einen im Abscheideraum (11) für die Schwimmstoffe vorgesehenen, von außen nach innen durchströmten ringförmigen Koaleszenzeinsatz (14) aufweist, dadurch gekennzeichnet, daß der Absetzraum (10) für die Sinkstoffe vollständig unter dem Abscheideraum (11) für die Schwimmstoffe liegt und ohne Querschnittsverengung in diesen übergeht.1. Separation system for waste water loaded with floating and settling substances, consisting of a separating basin with a calm flow (1) which has a lateral inlet (8), a settling chamber (10) for the settling substances and an annular coalescence insert (14) provided in the separating chamber (11) for the floating substances and through which the flow is from the outside to the inside, characterized in that the settling chamber (10) for the settling substances is located completely below the separating chamber (11) for the floating substances and merges into it without a cross-sectional constriction. 2. Abscheideanlage nach Anspruch 1, dadurch gekennzeichne t, daß der ringförmige Koaleszenzeinsatz (14) eine von innen wirksame Rückspüleinrichtung (16) aufweist.2. Separation system according to claim 1, characterized in that the annular coalescence insert (14) has a backflushing device (16) which operates from the inside. 3. Abscheideanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Zulauf (8) etwa im oberen Drittel der Höhe tangential in den Absetzraum (10) mündet.3. Separation system according to claim 1 or 2, characterized in that the inlet (8) opens tangentially into the settling chamber (10) approximately in the upper third of the height.
DE29520958U 1995-01-04 1995-01-04 Separation plant for wastewater loaded with floating and sinking substances Expired - Lifetime DE29520958U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29520958U DE29520958U1 (en) 1995-01-04 1995-01-04 Separation plant for wastewater loaded with floating and sinking substances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19500130 1995-01-04
DE29520958U DE29520958U1 (en) 1995-01-04 1995-01-04 Separation plant for wastewater loaded with floating and sinking substances

Publications (1)

Publication Number Publication Date
DE29520958U1 true DE29520958U1 (en) 1996-06-05

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Application Number Title Priority Date Filing Date
DE29520958U Expired - Lifetime DE29520958U1 (en) 1995-01-04 1995-01-04 Separation plant for wastewater loaded with floating and sinking substances

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Country Link
DE (1) DE29520958U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20011525U1 (en) * 2000-07-01 2001-11-15 Dyckerhoff & Widmann AG, 81829 München Light liquid separator
DE102004016550A1 (en) * 2004-04-03 2005-10-20 Michael Benkeser Gravity separator vessel for a continuous liquid flow e.g. immiscible organic phase and water, has a float valve which in an organic environment closes the water outlet
WO2007035152A1 (en) * 2005-09-19 2007-03-29 Claes Olofsson Apparatus and method for separation of water from an emulsion or mixture of water and oil
US7678285B2 (en) 2005-09-19 2010-03-16 Claes Olofsson Apparatus and method for separation of water from an emulsion or mixture of water and oil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20011525U1 (en) * 2000-07-01 2001-11-15 Dyckerhoff & Widmann AG, 81829 München Light liquid separator
DE102004016550A1 (en) * 2004-04-03 2005-10-20 Michael Benkeser Gravity separator vessel for a continuous liquid flow e.g. immiscible organic phase and water, has a float valve which in an organic environment closes the water outlet
WO2007035152A1 (en) * 2005-09-19 2007-03-29 Claes Olofsson Apparatus and method for separation of water from an emulsion or mixture of water and oil
US7678285B2 (en) 2005-09-19 2010-03-16 Claes Olofsson Apparatus and method for separation of water from an emulsion or mixture of water and oil

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19960718

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 19990120

R081 Change of applicant/patentee

Owner name: ACO SEVERIN AHLMANN GMBH & CO. KG, DE

Free format text: FORMER OWNER: PASSAVANT-WERKE AG, 65326 AARBERGEN, DE

Effective date: 20010423

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20011128

R081 Change of applicant/patentee

Owner name: ACO SEVERIN AHLMANN GMBH & CO. KG, DE

Free format text: FORMER OWNER: PASSAVANT-ROEDIGER UMWELTTECHNIK GMBH, 65326 AARBERGEN, DE

Effective date: 20011205

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20030506

R071 Expiry of right