DE29520958U1 - Separation plant for wastewater loaded with floating and sinking substances - Google Patents
Separation plant for wastewater loaded with floating and sinking substancesInfo
- 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
Links
- 238000000926 separation method Methods 0.000 title claims description 17
- 239000000126 substance Substances 0.000 title claims description 12
- 239000002351 wastewater Substances 0.000 title claims description 7
- 238000004581 coalescence Methods 0.000 claims description 8
- 239000013049 sediment Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000010802 sludge Substances 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
- E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/045—Breaking emulsions with coalescers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2433—Discharge mechanisms for floating particles
- B01D21/2438—Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0003—Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0024—Inlets 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 7PASSAVANT-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)
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 |
Family
ID=26011448
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29520958U1 (en) |
Cited By (4)
| 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 |
-
1995
- 1995-01-04 DE DE29520958U patent/DE29520958U1/en not_active Expired - Lifetime
Cited By (4)
| 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 |