DE3521036A1 - Process and process arrangement for separating off oil from untreated water by pressure relaxation - Google Patents

Process and process arrangement for separating off oil from untreated water by pressure relaxation

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Publication number
DE3521036A1
DE3521036A1 DE19853521036 DE3521036A DE3521036A1 DE 3521036 A1 DE3521036 A1 DE 3521036A1 DE 19853521036 DE19853521036 DE 19853521036 DE 3521036 A DE3521036 A DE 3521036A DE 3521036 A1 DE3521036 A1 DE 3521036A1
Authority
DE
Germany
Prior art keywords
separation vessel
raw water
oil
water
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.)
Withdrawn
Application number
DE19853521036
Other languages
German (de)
Inventor
Ingolf 8038 Gröbenzell Kurtze
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 DE19853521036 priority Critical patent/DE3521036A1/en
Publication of DE3521036A1 publication Critical patent/DE3521036A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
    • 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
    • B01D17/044—Breaking emulsions by changing the pressure

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Water Treatments (AREA)
  • Removal Of Floating Material (AREA)

Abstract

To significantly reduce the structural and mechanical complexity in separating off oil from untreated water to reach the legal requirements for the introduction of effluents as specified in DIN 1999 and DIN 38409, discontinuously produced untreated water is passed into a collecting vessel until this is full. Compressed air is then bubbled through the untreated water until a saturated state under pressure is established. In the subsequent release of the untreated water through a nozzle into a separation vessel, a separation of the oil from water occurs and a multiplicity of air bubbles are formed, which effect the transport of the liberated oil into the tapering point of the separation vessel. A rising pipe controlling the water level in the separation vessel, which rising pipe is assigned to the bottom end of the separation vessel, enables the oil and water to flow out in fractions.

Description

Die Erfindung betrifft ein Verfahren und eine Verfahrens-The invention relates to a method and a method

anordnung zur Ölabtrennung aus Rohwasser durch Druckentspannung.arrangement for separating oil from raw water through pressure release.

Steigende gesetzliche Anforderungen an die Schadstofffreiheit von industriellen Abwässern, bestehend aus Bilgenwässern, Waschwässern und Kondensaten erfordern ein der Erfindung zugrundeliegendes, einfaches, jedoch mechanischen Verfahren im Wirkungsgrad überlegenes Verfahren speziell zur Aufbereitung kleiner diskontinuierlich anfallender Rohwassermengen, welches mit geringen Investitionskosten und mit entsprechend niedrigen Betriebskosten automatisch arbeiten kann.Increasing legal requirements for the absence of harmful substances in industrial wastewater, consisting of bilge water, washing water and condensates require a simple but mechanical process on which the invention is based Process with superior efficiency, especially for processing small batches accruing raw water quantities, which with low investment costs and with accordingly can operate automatically with low operating costs.

Es ist bekannt, daß mechanische Verfahren zur Ulabtrennung aus Rohwasser nach DIN 1999 aufgrund langer erforderlicher Verweilzeiten sehr groß bauen und spezielle Tiefbauarbeiten erfordern.It is known that mechanical processes for separating Ulabs from raw water according to DIN 1999 due to the long dwell times required, build very large and special Require civil engineering work.

Es ist bekannt, daß Durchlaufverfahren zur Ulabtrennung aus Rohwasser maschinentechnischen Aufwand wie Pumpen, Skimmer, Rührwerke usw. erfordern und somit Wartung und Energieaufwand. Desweiteren sind solche Verfahren bei kleinen Wassermengen gemessen am Investitionsaufwand nicht akzeptabel.It is known that continuous processes for Ulabseparation from raw water require mechanical engineering effort such as pumps, skimmers, agitators, etc. and thus Maintenance and energy expenditure. Furthermore, such methods are used for small amounts of water not acceptable in terms of investment costs.

Die vorliegende Erfindung hat die Aufgabe zugrundegelegt, auf Tiefbauarbeiten, große Sammelbecken, mechanische Ölabscheider sowie auf maschinentechnischen Aufwand zu verzichten.The present invention is based on the object, on civil engineering work, large collecting basins, mechanical oil separators and mechanical engineering to renounce.

Diese Aufgabe wird durch die Verfahrensanordnung gemäß der kennzeichiienden Merkmale der Ansprüche 1-3 gelöst.This task is achieved by the procedural arrangement according to the characterizing Features of claims 1-3 solved.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is described in more detail below.

Verfahren und Verfahrensanordnung zur Ölabtrennung aus Rohwasser durch Druckentspannung erfindungsgemäß dadurch gekennzeichnet, daß Rohwasser in einen Sammelbehälter 1 fließt, nach Erreichen des maximalen Wasserstandes 11 das Druckau fbauventil 3 öffnet, während das Rohwassereinlaufventil 2 , das Druckentspannungsventil 5 und das Rohwasserauslau fventil 4 geschlossen sind und solange Druckluft durch das Rohwasser geperlt wird, bis sich im Sammelbehsiter 1 ein Druck aufbaut, der die Luftsättigung des Rohwassers bewirkt, anschließend sich das Rohwasserauslaufventil 4 öffnet und das Rohwasser unter anstehendem Druck durch eine Druckentspannungsdüse 6 strömt und durch den Reaktionsschacht 8 in das Trenngefäß 7 gelangt in welchem sich das Öl vom Wasser trennt und aus dem oberen Ende des sich vepüngenden Trenngefäßes 9 ausfließen kann, während das gereinigte Wasser durch ein mit dem unteren Endendes Trenngefäßes verbundenes Steigrohr 10 welches den Wasserstand im Trenngefäß regelt abfließt,bis bei minimalem Wasserstand 12 im Sammelbehälter 1 das Druckaufbauventil 3 und das Rohwasserauslaufventil 4 schließen, während das Rohwassereinlaufventil 2 und das Druckentspannungsventil 5 öffnen, damit wieder Rohwasser einlaufen kann.Process and process arrangement for separating oil from raw water Pressure release according to the invention characterized in that raw water in a Collection tank 1 flows after reaching the maximum water level 11 the pressure build-up fbauventil 3 opens, while the raw water inlet valve 2, the pressure relief valve 5 and the Rohwasserauslau fventil 4 are closed and while compressed air through the raw water is bubbled until a pressure builds up in the collecting tank 1, which causes the air saturation of the raw water, then the raw water outlet valve 4 opens and the raw water under pressure through a pressure relief nozzle 6 flows and passes through the reaction shaft 8 into the separation vessel 7 in which the oil separates from the water and from the upper end of the tapering separation vessel 9 can flow out, while the purified water through a with the lower end end Separation vessel connected riser 10 which regulates the water level in the separation vessel flows away until the pressure build-up valve at the minimum water level 12 in the collecting container 1 3 and the raw water outlet valve 4 close while the raw water inlet valve 2 and open the pressure relief valve 5 so that raw water can flow in again.

Claims (3)

Verfahren und Verfahrnsanordnung zur Ulabtrennung aus Rohwasser durch Druckentspannung Patentansprüche: 1. Verfahren und Verfahrensanordnung zur Ölabtrennung aus Rohwasser durch Druckentspannung, erfindungsgemäß dadurch gekennzeichnet, daß Rohwasser in einen Sammelbehälter fließt, nach Erreichen des maximalen Wasserstandes mit Druckluft durchspült, unter Druck mit Luft gesättigt, nach Erreichen des Sättigungszustandes durch eine Düse entspannt, in ein Trenngefäß gelangt, in welchem die freiwerdenden Luftbläschen die Ulbestandteile im Rohwasser in die sich verjüngendr Spitze des Trenngefäßes transportieren und dort das verdichtete Ö1 durch eine Öffnung im Trenngefäß ausfließen kann, während das gereinigte Wasser nach unten über einmit dem Trenngefäß verbundenes Steigrohr. welches mit der Trenngefäßspitze kommuniziert, abfließt.Process and process arrangement for separating ultra-pure water from raw water Pressure release Claims: 1. Method and method arrangement for separating oil from raw water by pressure release, according to the invention characterized in that Raw water flows into a collecting tank after reaching the maximum water level flushed with compressed air, saturated with air under pressure, after reaching the saturation state relaxed through a nozzle, enters a separation vessel in which the released Air vesicles move the ul constituents in the raw water into the tapering tip of the Transport the separation vessel and there the compressed oil through an opening in the separation vessel can flow out, while the purified water down over a with the separation vessel connected riser pipe. which communicates with the tip of the separation vessel flows away. 2. Verfahren und Verfahrensanordnung nach Anspruch 1 dadurch gekennzeichnet, daß der Rohwassersammelbehälter 1 rund, rechteckig oder quadratisch ausgebildet ist, sowie Absperrventile für Rohwassereinlauf 2 , Druckaufbau 3 Rohwasserauslauf 4 und Druckentspannung 5 angeordnet sind, sowie dem Rohwasserauslaufventil 4 eine Druckentspannungsdüse 6 zugeordnet ist, welche den entspannten Rohwasserstrom dem Trenngefäß 7 zuspeist.2. The method and method arrangement according to claim 1, characterized in that that the raw water storage tank 1 is round, rectangular or square is, as well as shut-off valves for raw water inlet 2, pressure build-up 3 raw water outlet 4 and pressure relief 5 are arranged, as well as the raw water outlet valve 4 a Pressure relief nozzle 6 is assigned, which the relaxed raw water flow Separation vessel 7 feeds. 3. Verfahren und Verfahrensanordnung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß das Trenngefäß 7 rund, rechteckig oder quadratisch ausgebildet ist, mittig im Trenngefäß ein Reaktionsschacht 8 angeordnet ist, daß das Trenngefäß 7 am oberen Ende sich verjüngt und eine Aus flußöffnung für Öl 9 angeordnet ist und ein mit dem unteren Ende des Trenngefäßes verbundenes Steigrohr 10 den Wasserspiegel im Trenngefäß 7 so regelt, daß Öl und Wasser getrennt aus den vorgesehenen Öffnungen ablaufen können.3. The method and method arrangement according to claim 1 and 2 thereby characterized in that the separation vessel 7 is round, rectangular or square is, a reaction shaft 8 is arranged in the middle of the separation vessel that the separation vessel 7 tapers at the upper end and an off flow opening for oil 9 is arranged and a riser pipe 10 connected to the lower end of the separation vessel, the water level regulates in the separation vessel 7 so that oil and water are separated from the openings provided can expire.
DE19853521036 1985-06-12 1985-06-12 Process and process arrangement for separating off oil from untreated water by pressure relaxation Withdrawn DE3521036A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853521036 DE3521036A1 (en) 1985-06-12 1985-06-12 Process and process arrangement for separating off oil from untreated water by pressure relaxation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853521036 DE3521036A1 (en) 1985-06-12 1985-06-12 Process and process arrangement for separating off oil from untreated water by pressure relaxation

Publications (1)

Publication Number Publication Date
DE3521036A1 true DE3521036A1 (en) 1986-12-18

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DE19853521036 Withdrawn DE3521036A1 (en) 1985-06-12 1985-06-12 Process and process arrangement for separating off oil from untreated water by pressure relaxation

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DE (1) DE3521036A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023273A1 (en) * 1990-07-21 1992-01-23 Passavant Werke Sepn. of oils from waste water - uses appts. where anaerobic reaction in water is prevented by pumping air into sepg. tanks contg. circulated water
WO1998041303A1 (en) * 1997-03-17 1998-09-24 Passavant-Werke Ag Separator and separation method for separating organic lightweight materials from waste water
US7361282B2 (en) * 2003-07-21 2008-04-22 Smullin Corporation Separator of floating components

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023273A1 (en) * 1990-07-21 1992-01-23 Passavant Werke Sepn. of oils from waste water - uses appts. where anaerobic reaction in water is prevented by pumping air into sepg. tanks contg. circulated water
WO1998041303A1 (en) * 1997-03-17 1998-09-24 Passavant-Werke Ag Separator and separation method for separating organic lightweight materials from waste water
US7361282B2 (en) * 2003-07-21 2008-04-22 Smullin Corporation Separator of floating components

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