DE4012641A1 - Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge - Google Patents

Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge

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Publication number
DE4012641A1
DE4012641A1 DE4012641A DE4012641A DE4012641A1 DE 4012641 A1 DE4012641 A1 DE 4012641A1 DE 4012641 A DE4012641 A DE 4012641A DE 4012641 A DE4012641 A DE 4012641A DE 4012641 A1 DE4012641 A1 DE 4012641A1
Authority
DE
Germany
Prior art keywords
effluent
discharge
sludge
water
tank
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Withdrawn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
DE4012641A
Other languages
German (de)
Inventor
Herbert Reppert
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 DE4012641A priority Critical patent/DE4012641A1/en
Publication of DE4012641A1 publication Critical patent/DE4012641A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • B01D21/34Controlling the feed distribution; Controlling the liquid level ; Control of process parameters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sewage (AREA)

Abstract

Wastewater settling tank incorporates mechanical discharge of effluent. The tank discharges effluent without increasing the velocity of flow in the direction of discharge in the region of the tank which contains sludge. During the filling of the tank, no discharge of effluent occurs, and water reaches a max. level in the tank. Then clarified effluent is discharged, and at the same time at least an equal amt. of water which contains sludge is removed, thus desludging the tank. ADVANTAGE - Because clarified effluent is discharged at the same time as the tank is desludged, sludge is prevented from contaminating the effluent.

Description

Erfolgt die biologische Reinigung von häuslichem, gewerblichem oder industriellem Abwasser in Tropfkörperanlagen, so wird diesem zum Zwecke der mechanischen Nachklärung des Abwassers in der Regel ein Dortmundbrunnen (Trichterbecken) nachgeschaltet. Dieser ist ein rundes Becken mit zentralem Einlauf, vertikalem Durchfluß und einem am Beckenumfang angeordneten Überlauf. Der ausgeschiedene Schlamm wird in regelmäßigen Abständen aus der Trichtersohle ab­ gesaugt.Is the biological cleaning of domestic, commercial or industrial wastewater in trickling filter systems, this is used for the purpose of mechanical clarification of the A Dortmund fountain (funnel basin) downstream. This is a round basin with a central one Inlet, vertical flow and one at the pool circumference arranged overflow. The excreted mud is removed from the funnel sole at regular intervals sucked.

Der Wirkungsgrad des Dortmundbrunnens ist in der Regel unbefriedigend, da der vorhandene Beckenquerschnitt nur teilweise ausgenutzt und deshalb die rechnerisch ermittelte Steiggeschwindigkeit des Abwassers überschritten wird. Eine unzulässig hohe Menge an absetzbaren Stofen im Ablauf zum Gewässer ist die Folge.The efficiency of the Dortmund fountain is usually unsatisfactory, because the existing pelvic cross section is only partially exploited and therefore the calculated Rate of rise of the waste water is exceeded. An impermissibly high amount of settable stoves in the drain to the water is the result.

Der Erfindung liegt die Aufgabe zugrunde, die Fließvorgänge im Becken so zu regeln, daß die Steiggeschwindigkeit des Abwassers im Becken nicht mehr überschritten werden kann und somit kein Schlamm in den Ablauf zum Gewässer gelangt.The invention has for its object the flow processes regulate in the pool so that the rate of climb of the wastewater in the basin can no longer be exceeded can and therefore no sludge in the drain to the water reached.

Nach der Erfindung ist dieses dadurch möglich, daß das dem Becken zufließende Abwasser in einer gewünschten Menge gespeichert wird, ohne daß während des Aufstauvorganges ein Abfluß aus dem Becken erfolgt und daher eine Fließgeschwindigkeit sich in Richtung Ablauf nicht einstellen kann. Ist der max. Wasserstand im Becken erreicht, wird von der Oberfläche schlammfreies Abwasser in den Ablauf zum Gewässer und gleichzeitig und in gleicher Menge Schlammwasser aus dem Schlammraum in den Rücklauf zur Vorklärung abgeleitet. Dadurch wird im mittleren Bereich des Beckens die vohandene Null-Geschwindigkeitszone nicht beeinflußt und die Schlammteilchen können diese Zone nicht überwinden und somit nicht in den Ablaufbereich gelangen.According to the invention this is possible in that the Waste water flowing into the pool is stored in a desired quantity is without a during the accumulation process Drainage from the pool takes place and therefore a flow rate cannot adjust in the direction of the process. Is the max. Water level in the pool is reached from the surface sludge-free waste water in the drain to the body of water and at the same time and in the same amount of sludge water the sludge chamber in the return for preliminary clarification. This makes the existing one in the central area of the pelvis Zero speed zone not affected and the Mud particles cannot cross this zone and thus do not get into the drain area.

Im folgenden ist ein Weg zur Ausführung der Erfindung erläutert und in einer Zeichnung dargestellt:
Das Abwaser fließt in einer Rohrleitung (1) zur Beckenmitte und gelangt in ein Tauchrohr (2), in dem es in den Schlammraum (3) geführt wird. Dieses bewirkt ein Ansteigen des Wasserspiegels bis zum gewünschten max. Wasserstand (4). Ist dieser erreicht, springt eine Doppelhebervorrichtung (5) nach Patent Nr. 31 08 005 an. Heber 1 (6) saugt nun aus dem Oberflächenbereich Abwasser, das mittels 4 Einlaufrohren (8) einem mit einen Lüftungsrohr (9) versehenem Saugtopf (10) zugeführt wurde, bis zum Wasserstand min. 1 (11) in die Ablaufleitung (12) zum Gewässer und Heber 2 (13) gleichzeitig und mit gleicher Leistung Schlammwasser mittels eines Saugrohres (14) aus dem Schlammraum (3) in die Rücklaufleitung (15) zur Vorklärung, bis der Wasserstand min. 2 (16) erreicht ist. Beide Heber gehen danach in die Ausgangslage zurück. Der nächste Füllvorgang beginnt.
A way of carrying out the invention is explained below and shown in a drawing:
The waste water flows in a pipeline ( 1 ) to the center of the pool and enters an immersion pipe ( 2 ) in which it is led into the sludge chamber ( 3 ). This causes the water level to rise to the desired max. Water level ( 4 ). If this is reached, a double jack device ( 5 ) according to patent no. 31 08 005 starts. Lifter 1 ( 6 ) now sucks wastewater from the surface area, which was fed by means of 4 inlet pipes ( 8 ) to a suction cup ( 10 ) provided with a ventilation pipe ( 9 ) up to the water level min. 1 ( 11 ) into the drain line ( 12 ) to the water and siphon 2 ( 13 ) at the same time and with the same output sludge water by means of a suction pipe ( 14 ) from the sludge chamber ( 3 ) into the return line ( 15 ) for preliminary clarification until the water level min. 2 ( 16 ) is reached. Both lifters then return to their starting position. The next filling process begins.

Außer dem Trichterbecken (17), dem Heberkasten (18) und den Balken (19) zur Befestigung des Heberkastens (18) und des Tauchrohres (2), die aus Beton hergestellt sind, bestehen alle Teile des Absetzbeckens aus Kunststoff.Apart from the funnel basin ( 17 ), the lifter box ( 18 ) and the beams ( 19 ) for fastening the lifter box ( 18 ) and the immersion tube ( 2 ), which are made of concrete, all parts of the sedimentation basin are made of plastic.

Claims (1)

Absetzbecken zur mechanischen Nachklärung von Abwasser, ohne Bildung einer Fließgeschwindigkeit im Bereich des schlammhaltigen Abwassers in Richtung Ablauf während des Abwasserabflusses zum Gewässer, dadurch gekennzeichnet, daß nach einer ablauffreien Aufstauphase ein max. Wasserstand erreicht wird, bei dem ein Wasserabfluß aus dem schlammfreien Beckenbereich zum Gewässer erfolgt und gleichzeitig in mind. gleicher Menge schlammhaltiges Abwasser aus dem Schlammraum zwecks Entschlammung des Absetzbeckens abgeleitet wird.Settling tanks for the mechanical clarification of wastewater, without the formation of a flow rate in the area of the sludge-containing wastewater in the direction of the discharge during the wastewater outflow to the water, characterized in that after a drain-free defrosting phase a max. Water level is reached at which there is a water drain from the sludge-free pool area to the water and at the same time, at least the same amount of sludge-containing waste water is discharged from the sludge area for the purpose of desludging the sedimentation tank.
DE4012641A 1990-04-20 1990-04-20 Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge Withdrawn DE4012641A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4012641A DE4012641A1 (en) 1990-04-20 1990-04-20 Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4012641A DE4012641A1 (en) 1990-04-20 1990-04-20 Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge

Publications (1)

Publication Number Publication Date
DE4012641A1 true DE4012641A1 (en) 1991-10-24

Family

ID=6404753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4012641A Withdrawn DE4012641A1 (en) 1990-04-20 1990-04-20 Waste-water settling tank - incorporates mechanical discharge of effluent using syphons to discharge effluent and to remove sludge

Country Status (1)

Country Link
DE (1) DE4012641A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401047B (en) * 1994-07-19 1996-05-28 Kastner Helmut F Ing Sewage treatment plant, in particular soil-filtration treatment plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401047B (en) * 1994-07-19 1996-05-28 Kastner Helmut F Ing Sewage treatment plant, in particular soil-filtration treatment plant

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Legal Events

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