DE102009031703A1 - Treating laundry wastewater, comprises releasing the wastewater occurring in laundry as undissolved and biologically biodegradable dissolved substances into biomembrane reactor, and intermediately storing reactor permeate in storage tank - Google Patents
Treating laundry wastewater, comprises releasing the wastewater occurring in laundry as undissolved and biologically biodegradable dissolved substances into biomembrane reactor, and intermediately storing reactor permeate in storage tank Download PDFInfo
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- DE102009031703A1 DE102009031703A1 DE102009031703A DE102009031703A DE102009031703A1 DE 102009031703 A1 DE102009031703 A1 DE 102009031703A1 DE 102009031703 A DE102009031703 A DE 102009031703A DE 102009031703 A DE102009031703 A DE 102009031703A DE 102009031703 A1 DE102009031703 A1 DE 102009031703A1
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- water
- laundry
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- wastewater
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- 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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/24—Quality control
- B01D2311/243—Electrical conductivity control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Zur Behandlung von Wäschereiabwasser wird dieses in einem Biomembranreaktor sowohl von ungelösten als auch von biologisch abbaubaren, gelösten Inhaltsstoffen befreit und das Permeat des Biomembranreaktors wird in einem Speichertank als Primärwasser zwischengespeichert. Ein 1. Teilstrom des im Speichertank gespeicherten Primärwassers wird durch eine 2. Reinigungsvorrichtung geleitet, bei der es sich um eine Umkehrosmose handeln kann. Dabei ist vorgesehen, dass das Permeat der 2. Reinigungsvorrichtung (Sekundärwasser) einem Mischwassertank zugeführt und dort mit einem 2. Teilstrom des im Speichertank gespeicherten Primärwassers in einem vorbestimmten Mischungsverhältnis durchmischt wird, woraufhin das Mischwasser zur Wäscherei rezirkuliert wird.For the treatment of laundry waste water this is freed in a biomembrane reactor of both undissolved and biodegradable, dissolved ingredients and the permeate of the biomembrane reactor is cached in a storage tank as primary water. A 1st partial flow of the primary water stored in the storage tank is passed through a second purification device, which may be reverse osmosis. It is provided that the permeate the second cleaning device (secondary water) is supplied to a mixed water tank and mixed there with a second part of the current stored in the storage tank primary water in a predetermined mixing ratio, after which the mixed water is recirculated to the laundry.
Description
Die Erfindung betrifft ein Verfahren zur Behandlung von Wäschereiabwasser, wobei das in der Wäscherei anfallende Wäschereiabwasser in einem Biomembranreaktor sowohl von ungelösten als auch von biologisch abbaubaren, gelösten Inhaltsstoffen befreit und das Permeat des Biomembranreaktors in einem Speichertank als Primärwasser zwischengespeichert wird, wobei ein 1. Teilstrom des im Speichertank gespeicherten Primärwassers durch eine 2. Reinigungsvorrichtung geleitet wird.The The invention relates to a method for the treatment of laundry waste water, wherein the laundry wastes incurred in the laundry in a biomembrane reactor from both undissolved and from biodegradable, dissolved ingredients released and the permeate of the biomembrane reactor in a storage tank as Primary water is cached, with a 1st partial flow of the primary water stored in the storage tank through a 2. Cleaning device is passed.
Aus
der
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Behandlung von Wäschereiabwasser zu schaffen, bei dem sich für die mit dem rezirkulierten Wasser gewaschene Wäsche gute Wasch- und Bügel- bzw. Mangelergebnisse erzielen lassen und bei dem allergische Reaktionen beim Kunden zuverlässig vermieden sind.Of the Invention is based on the object, a method of treatment to create laundry waste water, which is responsible for the laundry washed with the recirculated water is good Wash and Ironing or mangle results achieve and in which allergic reactions at the customer reliable are avoided.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Dabei ist vorgesehen, dass das Permeat der 2. Reinigungsvorrichtung, das im folgenden als Sekundärwasser bezeichnet wird, einem Mischwassertank zugeführt und dort mit einem 2. Teilstrom des im Speichertank gespeicherten Primärwassers in einem vorbestimmten Mischungsverhältnis durchmischt wird und dass anschließend dieses Mischwasser zur Wäscherei rezirkuliert wird.These The object is achieved by a method solved with the features of claim 1. It is intended that the permeate the 2nd cleaning device, the following is called secondary water, a mixed water tank fed and there with a 2nd partial flow of the storage tank stored primary water in a predetermined mixing ratio is mixed and then that mixed water is recirculated to the laundry.
Erfindungsgemäß wird das Wasser nach Durchlaufen des Biomemembranreaktors, der eine 1. Reinigungsstufe darstellt und in dem biologisch abbaubare Abwasserbestandteile eliminiert werden, in dem Speichertank zwischenzuspeichern. Dieses mittels des Biomembranreaktors gereinigte Wasser wird erfindungsgemäß als Primärwasser bezeichnet. Ein Anteil von beispielsweise 50% bis 75% des im Speichertank befindlichen Primärwassers wird über eine 2. Reinigungsvorrichtung geleitet, die als Umkehrosmose ausgeführt sein kann. In der 2. Reinigungsvorrichtung werden die geringe organische Restverschmutzung sowie der Salzanteil des Wassers reduziert. Das Permeat der 2. Reinigungsvorrichtung bzw. aus der Umkehrosmose (Sekundärwasser) wird nicht direkt zur Wäscherei zurückgeführt, sondern in einen Mischwassertank eingeleitet und dort mit Primärwasser aus dem Speichertank verschnitten bzw. in einem vorbestimmten Mischungsverhältnis durchmischt. Durch das Mischungsverhältnis zwischen dem Sekundärwasser und dem Primärwasser aus dem Speichertank können die Eigenschaften des daraus entstehenden Mischwassers eingestellt und beeinflusst werden. Es hat sich gezeigt, dass sich bei der Verwendung dieses Mischwassers für die damit gewaschene Wäsche sehr gute Bügel- und Mangelergebnisse erzielen lassen und dass allergische Reaktionen bei Kunden, die die mit diesem Mischwasser gewaschene Wäsche tragen, praktisch vollständig vermieden werden können.According to the invention the water after passing through the biomembrane membrane reactor, a 1st purification step represents and eliminated in the biodegradable wastewater components be cached in the storage tank. This means of the biomembrane reactor purified water according to the invention as Primary water called. A share of, for example 50% to 75% of the primary water in the storage tank is passed over a second cleaning device, which as Reverse osmosis can be performed. In the 2nd cleaning device are the low residual organic pollution and the salt content the water is reduced. The permeate of the 2nd cleaning device or from the reverse osmosis (secondary water) is not directly returned to the laundry, but introduced into a mixed water tank and there with primary water blended from the storage tank or in a predetermined mixing ratio mixed. By the mixing ratio between the Secondary water and the primary water from the storage tank can the properties of the resulting mixed water be adjusted and influenced. It has been shown that when using this mixed water for the washed with it To achieve very good ironing and ironing results let and allergic reactions with customers who are using this Mixed water wear washed laundry, practically complete can be avoided.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass zumindest ein Kennwert sowohl des Sekundärwassers als auch im Primärwassers erfasst wird. Als Kennwert findet vorzugsweise jeweils die elektrische Leitfähigkeit des Wassers verwendet. Die beiden ermittelten Kennwerte werden an eine Steuereinheit übermittelt, in der auf der Grundlage der festgestellten Kennwerte das vorbestimmte Mischungsverhältnis errechnet wird, dass dann in dem Mischwassertank eingestellt wird, indem entsprechende Wassermengen einerseits des Sekundärwassers und andererseits des im Speichertank gespeicherten Primärwassers in den Mischwassertank eingefüllt werden.In preferred embodiment of the invention is provided that at least a characteristic of both the secondary water and the primary water is detected. As a characteristic value is preferably in each case the electrical Conductivity of the water used. The two determined Characteristic values are transmitted to a control unit, in the predetermined one based on the detected characteristics Mixing ratio is calculated that then in the mixed water tank is set by appropriate amounts of water on the one hand of the Secondary water and on the other hand of the stored in the storage tank Primary water filled into the mixed water tank become.
In der Praxis hat es sich als sinnvoll erwiesen, wenn das Mischungsverhältnis der Wassermenge des Sekundärwassers zu der Wassermenge des 2. Teilstroms des im Speichertank gespeicherten Primärwassers im Bereich von 2,5 bis 1,0 liegt, d. h. 2,5 > M = T3/T2 > 1,0.In practice, it has proved to be useful if the mixing ratio of the amount of water of the secondary water to the amount of water of the 2nd partial flow of the primary water stored in the storage tank in the range of 2.5 to 1.0, ie 2.5> M = T 3 / T 2 > 1.0.
In bevorzugter Ausgestaltung der Erfindung liegt das Mischungsverhältnis M im Bereich von 2,2 bis 1,8 und kann beispielsweise 2,0 betragen.In Preferred embodiment of the invention, the mixing ratio M in the range of 2.2 to 1.8 and may be 2.0, for example.
Aufgrund von umfangreichen Messergebnissen hat sich in der Praxis eine vorteilhafte Leitfähigkeit LSOLL des Mischwassers im Bereich von 500 μS/cm bis 600 μS/cm und insbesondere von 550 μS/cm als vorteilhaft herausgestellt.Due to extensive measurement results, an advantageous conductivity L SOLL of the mixed water in the range from 500 μS / cm to 600 μS / cm and in particular of 550 μS / cm has proven advantageous in practice.
Der
prozentuale Anteil A des Sekundärwassers im Mischwasser
wird erfindungsgemäß errechnet zu:
- LT2
- = die elektrische
Leitfähigkeit des im Speichertank (
15 ) befindlichen Primär sowie des 2. Teilstroms (T2), - LT3
- = die elektrische Leitfähigkeit des Sekundärwassers (T3),
- LSOLL
- = ein vorgegebener Soll-Wert der elektrischen Leitfähigkeit des Mischwassers
- L T2
- = the electrical conductivity of the storage tank (
15 ) and the second sub-stream (T2), - L T3
- = the electrical conductivity of the secondary water (T3),
- L SOLL
- = a predetermined target value of the electrical conductivity of the mixed water
Gegebenenfalls kann in der Steuereinheit bei der Berechnung der zu verschneidenden Mengen an Sekundärwasser und an Primärwasser auch die im Speichertank zur Verfügung stehenden Menge an Primärwasser und/oder die Zeit eingehen, die bis zur nächsten Anforderung von Mischwasser durch die Wäscherei verbleibt.Possibly can be in the control unit when calculating the to be blended Amounts of secondary water and primary water, too the amount of primary water available in the storage tank and / or the time left until the next request of mixed water through the laundry remains.
Vorzugsweise werden das Mischwasser und/oder das Sekundärwasser und/oder das im Speichertank befindliche Primärwasser desinfiziert, was vorzugsweise dadurch Zugabe von Desinfektionsmittel, insbesondere ClO2 erfolgt.The mixed water and / or the secondary water and / or the primary water present in the storage tank are preferably disinfected, which is preferably done by adding disinfectant, in particular ClO 2 .
In besonders bevorzugter Ausgestaltung des erfindungsgemäßen Verfahrens ist vorgesehen, dass zunächst das Permeat der 2. Reinigungsvorrichtung bzw. das Sekundärwasser erzeugt und in den leeren Mischwassertank gefördert wird. Anschließend wird die von der Steuereinheit errechnete Menge an Primärwasser aus dem Speichertank in den Mischwassertank gefördert und dort mit dem Sekundärwasser vorzugsweise unter Verwendung einer Rührvorrichtung zu dem Mischwasser vermischt.In particularly preferred embodiment of the invention Method is provided that first the permeate the 2. Cleaning device or the secondary water generated and is conveyed into the empty mixed water tank. Subsequently becomes the amount of primary water calculated by the control unit conveyed from the storage tank into the mixed water tank and there preferably using the secondary water a stirring device mixed with the mixed water.
Weitere Einzelheiten und Merkmale der Erfindung sind aus der folgenden Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung ersichtlich. Dabei zeigt die einzige Figur ein vereinfachtes Ablaufbild des erfindungsgemäßen Verfahrens.Further Details and features of the invention will become apparent from the following description an embodiment with reference to the drawing seen. The single figure shows a simplified process picture the method according to the invention.
In
einer Wäscherei
Aus
dem Abwassertank
Das
im Speichertank
Von
dem Speichertank
In
der zwischen der 2. Reinigungsvorrichtung
Aus
dem Speichertank
Vorzugsweise
wird zunächst das Permeat P der 2. Reinigungsvorrichtung
Zusätzlich
kann vorgesehen sein, dass Regenwasser R an der Wäscherei
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1307405 B1 [0002] - EP 1307405 B1 [0002]
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009031703A DE102009031703A1 (en) | 2009-07-04 | 2009-07-04 | Treating laundry wastewater, comprises releasing the wastewater occurring in laundry as undissolved and biologically biodegradable dissolved substances into biomembrane reactor, and intermediately storing reactor permeate in storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009031703A DE102009031703A1 (en) | 2009-07-04 | 2009-07-04 | Treating laundry wastewater, comprises releasing the wastewater occurring in laundry as undissolved and biologically biodegradable dissolved substances into biomembrane reactor, and intermediately storing reactor permeate in storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009031703A1 true DE102009031703A1 (en) | 2011-01-05 |
Family
ID=43299095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102009031703A Withdrawn DE102009031703A1 (en) | 2009-07-04 | 2009-07-04 | Treating laundry wastewater, comprises releasing the wastewater occurring in laundry as undissolved and biologically biodegradable dissolved substances into biomembrane reactor, and intermediately storing reactor permeate in storage tank |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009031703A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021133374A1 (en) | 2021-12-15 | 2023-06-15 | Wilo Se | Process and plant for obtaining drinking water |
| CN119118245A (en) * | 2024-10-15 | 2024-12-13 | 广东海清新环保科技有限公司 | A device for treating wastewater from reverse osmosis membrane production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4407734C1 (en) * | 1994-03-08 | 1995-04-20 | Buck Chem Tech Werke | Process for cleaning and reusing surfactant-containing waste waters |
| DE19630089C1 (en) * | 1996-07-26 | 1997-10-16 | Brochier Wasser Und Abwasserte | Process and assembly treats waste water and tensides separately by nano-filtration |
| DE19845808C1 (en) * | 1998-09-30 | 2000-07-13 | Wilk Bernd Ulrich | Method and device for the biological treatment of waste water |
| DE19905300A1 (en) * | 1999-02-09 | 2000-08-10 | Buck Werke Gmbh & Co I K | Purifying and recovering surfactant-containing water from industrial scale washing processes using two bioreactors containing biodegraders of different activity rate |
| DE10033513A1 (en) * | 2000-07-11 | 2002-01-31 | Textil Service | Method and device for treating laundry waste water |
-
2009
- 2009-07-04 DE DE102009031703A patent/DE102009031703A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4407734C1 (en) * | 1994-03-08 | 1995-04-20 | Buck Chem Tech Werke | Process for cleaning and reusing surfactant-containing waste waters |
| DE19630089C1 (en) * | 1996-07-26 | 1997-10-16 | Brochier Wasser Und Abwasserte | Process and assembly treats waste water and tensides separately by nano-filtration |
| DE19845808C1 (en) * | 1998-09-30 | 2000-07-13 | Wilk Bernd Ulrich | Method and device for the biological treatment of waste water |
| DE19905300A1 (en) * | 1999-02-09 | 2000-08-10 | Buck Werke Gmbh & Co I K | Purifying and recovering surfactant-containing water from industrial scale washing processes using two bioreactors containing biodegraders of different activity rate |
| DE10033513A1 (en) * | 2000-07-11 | 2002-01-31 | Textil Service | Method and device for treating laundry waste water |
| EP1307405B1 (en) | 2000-07-11 | 2005-11-02 | Textil-Service Klingelmeyer GmbH & Co. KG | Method and device for treating waste water from launderettes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021133374A1 (en) | 2021-12-15 | 2023-06-15 | Wilo Se | Process and plant for obtaining drinking water |
| CN119118245A (en) * | 2024-10-15 | 2024-12-13 | 广东海清新环保科技有限公司 | A device for treating wastewater from reverse osmosis membrane production |
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Effective date: 20140201 |