DE102013009448A1 - Fluidized bed reactor for the aerobic purification of wastewater with aerobic sludge stabilization and digestion of the particulate wastewater constituents - Google Patents
Fluidized bed reactor for the aerobic purification of wastewater with aerobic sludge stabilization and digestion of the particulate wastewater constituents Download PDFInfo
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- DE102013009448A1 DE102013009448A1 DE201310009448 DE102013009448A DE102013009448A1 DE 102013009448 A1 DE102013009448 A1 DE 102013009448A1 DE 201310009448 DE201310009448 DE 201310009448 DE 102013009448 A DE102013009448 A DE 102013009448A DE 102013009448 A1 DE102013009448 A1 DE 102013009448A1
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- fluidized bed
- bed reactor
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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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
-
- 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
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- 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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Es wird ein Wirbelbettreaktor in einer speziellen Anlagenkonfiguration beschrieben, die einen Anlagenbetrieb ohne Anfall von Primärschlamm ermöglicht. Gerade bei kleineren Anlagen oder Anlagen in schwer versorgbaren Gebieten bietet diese Anlagenkonfiguration große Vorteile im Vergleich zu konventionellen Systemen. Durch eine Anlagenkonfiguration mit vorgeschalteter mechanischer Feststoffabtrennung, einem zweistufigen Wirbelbettreaktor, der nachgeschalteten Nachklärung und einer Schlammentwässerung wird der Wirbelbettreaktor mit aerober Schlammstabilisierung betrieben. Durch den zweistufigen Aufbau, eine besondere Ausprägung des Trägermaterials und die Einhaltung spezifischer Werte beim Füllgrad mit Trägermaterial und beim Leistungseintrag durch die Belüftung wird in der ersten Stufe ein Aufschluss der partikulären Abwasserbestandteile erreicht. Die zweite Stufe übernimmt die weitergehende Reinigung des Abwassers und zum großen Teil die Schlammstabilisierung. Primärschlamm fällt bei diesem Verfahren keiner an. Anlagen dieser Art können im kommunalen Bereich bei Kläranlagengrößen bis 5.000 EW eingesetzt werden. Abgelegene Abwasseranfallstellen (Berghütten, Gaststätten, Bergdörfer) können mit dem beschriebenen System betriebssicher und reststoffarm ausgerüstet werden.A fluidized bed reactor in a special system configuration is described, which enables the system to be operated without producing primary sludge. This system configuration offers great advantages compared to conventional systems, especially for smaller systems or systems in areas that are difficult to supply. The fluidized bed reactor is operated with aerobic sludge stabilization through a system configuration with upstream mechanical solids separation, a two-stage fluidized bed reactor, the downstream secondary clarification and sludge dewatering. Due to the two-stage structure, a special form of the carrier material and compliance with specific values for the filling level with carrier material and the power input through the aeration, a breakdown of the particulate wastewater components is achieved in the first stage. The second stage takes on the further cleaning of the wastewater and, to a large extent, the sludge stabilization. No primary sludge is produced in this process. Systems of this type can be used in the municipal sector with sewage treatment plants of up to 5,000 PE. Remote waste water sources (mountain huts, restaurants, mountain villages) can be equipped with the system described to be operationally reliable and low in residues.
Description
Es wird ein Wirbelbettreaktor in einer speziellen Anlagenkonfiguration beschrieben, die einen Anlagenbetrieb ohne Anfall von Primärschlamm ermöglicht. Gerade bei kleineren Anlagen oder Anlagen in schwer versorgbaren Gebieten bietet diese Anlagenkonfiguration große Vorteile im Vergleich zu konventionellen Systemen.A fluidized bed reactor in a specific plant configuration is described that allows plant operation without the production of primary sludge. Especially with smaller plants or plants in difficult to supply areas, this plant configuration offers great advantages compared to conventional systems.
Derzeit werden kleine Wirbelbettanlagen nur mit einer Vorklärung in Form eines Absetzbeckens/-behälters geplant und erstellt. Dies ist im Arbeitsblatt DWA A 222 so festgesetzt. Allerdings hat diese Anlagenkonfiguration den Nachteil, dass der sich in der Vorklärung absetzende Primärschlamm regelmäßig aus dem System entnommen werden muss und einer größeren Anlage zur weiteren Behandlung zugeführt werden muss. Dies ist mit erheblichen Kosten und bei schwer zugänglichen Anlagen mit sehr großem logistischem Aufwand verbunden. Für alle Wirbelbettanlagen ohne eigene Schlammbehandlungsanlage sind die Planung und der Bau dieser Anlagen ohne Vorklärung, nur mit einer mechanischen Feststoffabtrennung wirtschaftlich höchst effektiv.Currently, small fluidized bed plants are planned and constructed only with a primary treatment in the form of a settling tank / container. This is stated in worksheet DWA A 222. However, this system configuration has the disadvantage that the settling in the primary clarification primary sludge must be removed from the system regularly and a larger system for further treatment must be supplied. This is associated with considerable costs and difficult to access facilities with very large logistical effort. For all fluidized bed plants without their own sludge treatment plant, the planning and construction of these plants without primary treatment, only with a mechanical solids separation are economically highly effective.
Dem Wirbelbettreaktor vorgeschaltet befindet sich eine mechanische Einrichtung zur Abwasserreinigung, die der Feststoffabtrennung, möglichst mit Siebgutwäsche und einer Dimensionierung, die einen ausreichenden Abscheidegrad von Fasern und Haaren ermöglicht dient.Upstream of the fluidized-bed reactor there is a mechanical device for waste-water purification, which serves to separate the solids, if possible by means of screen-washing and a dimensioning which permits a sufficient degree of separation of fibers and hair.
Der nachgeschaltete Wirbelbettreaktor verarbeitet sowohl die gelöste Abwasserverunreinigung als auch die partikuläre Verunreinigung bis hin zu der Partikelgröße, die durch die vorgeschaltete mechanische Feststoffabtrennung gerade nicht mehr abgeschieden wird.The downstream fluidized bed reactor processes both the dissolved wastewater contamination and the particulate contamination up to the particle size that is no longer separated by the upstream mechanical solids separation.
Neu an dieser Erfindung ist, dass im Wirbelbettreaktor die partikulären Abwasserbestandteile aerob stabilisiert werden und somit lager- und ausbringungsfähig gemacht werden. Es findet keine Schlammrückführung in den Wirbelbettreaktor oder die nicht mehr vorhandene Vorklärung statt. Sämtlicher anfallender Schlamm aus der Nachklärung wird sofort einer Schlammentwässerung bzw. Schlammeindickung zugeführt. Es fällt somit nur aerob stabilisierter Schlamm und Siebgut an.What is new about this invention is that in the fluidized-bed reactor the particulate wastewater constituents are aerobically stabilized and thus made storable and capable of being carried out. There is no sludge recycling in the fluidized bed reactor or no longer existing primary treatment. All accumulating sludge from the final clarification is immediately fed to a sludge dewatering or sludge thickening. Thus, only aerobically stabilized sludge and screenings are produced.
Ein Ausführungsbeispiel ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment is shown in the drawing and will be described in more detail below.
Der Schmutzwasserzulauf (
Der Wirbelbettreaktor wird 2-stufig ausgeführt. In der ersten Kammer (
In der zweiten Kammer (
Um die vollständige Stabilisierung des Biofilms sicherzustellen muss mit einer Flächenbelastung von maximal 8 gBSB5/(m2·d) in der ersten Stufe und maximal 3 gBSB5/(m2·d) in der zweiten Stufe dimensioniert werden. Eine hydraulische Verweilzeit im biologisch aktiven Teil der Anlage von mindestens 2,0 Stunden ist einzuhalten.In order to ensure complete stabilization of the biofilm, it must be dimensioned with a maximum surface loading of 8 gBSB5 / (m 2 · d) in the first stage and a maximum of 3 gBSB5 / (m 2 · d) in the second stage. A hydraulic residence time in the biologically active part of the system of at least 2.0 hours must be observed.
In der Nachklärung (
Alle Aggregate werden intelligent von einer SPS (
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201310009448 DE102013009448A1 (en) | 2013-06-06 | 2013-06-06 | Fluidized bed reactor for the aerobic purification of wastewater with aerobic sludge stabilization and digestion of the particulate wastewater constituents |
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DE201310009448 DE102013009448A1 (en) | 2013-06-06 | 2013-06-06 | Fluidized bed reactor for the aerobic purification of wastewater with aerobic sludge stabilization and digestion of the particulate wastewater constituents |
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DE102013009448A1 true DE102013009448A1 (en) | 2014-12-11 |
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DE201310009448 Withdrawn DE102013009448A1 (en) | 2013-06-06 | 2013-06-06 | Fluidized bed reactor for the aerobic purification of wastewater with aerobic sludge stabilization and digestion of the particulate wastewater constituents |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29819446U1 (en) * | 1998-10-26 | 1999-04-01 | Bergmann, Martin, 09322 Penig | Biological small sewage treatment plant with a multi-chamber pit |
DE19932903A1 (en) * | 1999-04-12 | 2000-10-26 | Volker Harbs | Process for biological wastewater treatment using a fluidized bed in a bioreactor |
EP0888253B1 (en) * | 1996-01-30 | 2001-01-31 | E.V.U. Entwicklung von Umwelttechnik GmbH | Small-scale biological sewage treatment plant |
DE10026867B4 (en) * | 2000-05-31 | 2005-06-02 | Mester, Thomas, Dipl.-Ing. | Reactor and process for wastewater treatment |
DE10127554B4 (en) * | 2001-05-30 | 2012-02-23 | Wolfgang Triller | Process for the biological purification of waste water |
-
2013
- 2013-06-06 DE DE201310009448 patent/DE102013009448A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0888253B1 (en) * | 1996-01-30 | 2001-01-31 | E.V.U. Entwicklung von Umwelttechnik GmbH | Small-scale biological sewage treatment plant |
DE29819446U1 (en) * | 1998-10-26 | 1999-04-01 | Bergmann, Martin, 09322 Penig | Biological small sewage treatment plant with a multi-chamber pit |
DE19932903A1 (en) * | 1999-04-12 | 2000-10-26 | Volker Harbs | Process for biological wastewater treatment using a fluidized bed in a bioreactor |
DE10026867B4 (en) * | 2000-05-31 | 2005-06-02 | Mester, Thomas, Dipl.-Ing. | Reactor and process for wastewater treatment |
DE10127554B4 (en) * | 2001-05-30 | 2012-02-23 | Wolfgang Triller | Process for the biological purification of waste water |
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R012 | Request for examination validly filed | ||
R086 | Non-binding declaration of licensing interest | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20141103 |