DE102004036081B4 - New drying concept (drying plant) for sewage sludge - Google Patents
New drying concept (drying plant) for sewage sludge Download PDFInfo
- Publication number
- DE102004036081B4 DE102004036081B4 DE102004036081A DE102004036081A DE102004036081B4 DE 102004036081 B4 DE102004036081 B4 DE 102004036081B4 DE 102004036081 A DE102004036081 A DE 102004036081A DE 102004036081 A DE102004036081 A DE 102004036081A DE 102004036081 B4 DE102004036081 B4 DE 102004036081B4
- Authority
- DE
- Germany
- Prior art keywords
- drying
- air
- sewage sludge
- sludge
- mixer
- 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.)
- Revoked
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Verfahren zum Trocknen von in einer Kläranlage mit Belebtschlammverfahren anfallendem Klärschlamm, dadurch gekennzeichnet, dass der entwässerte Schlamm in einem Trockenmischer mit einem Luftstrom getrocknet wird, der durch Wärmetausch von Umgebungsluft mit der für das Belebungsbecken bestimmten erhitzten Druckluft erwämt wurde.method for drying in a sewage treatment plant Sludge produced by activated sludge process, characterized that the dehydrated mud is dried in a dry mixer with a stream of air, the by heat exchange of ambient air with the for the activated sludge tank was heated to certain heated air.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Trocknen von in einer Kläranlage mit Belebtschlammverfahren anfallendem Klärschlamm. Aufgabe der Erfindung ist es, die in jeder Kläranlage eingesetzte Energie nutzbar zu machen und so Klärschlammentsorgungskosten zu sparen. Gelöst wird diese Aufgabe, indem der entwässerte Schlamm in einem Trockenmischer mit einem Luftstrom getrocknet wird, der durch Wärmetausch von Umgebungsluft mit der für das Belebungsbecken bestimmten erhitzten Druckluft erwärmt wurde. Somit wird der entwässerte Klärschlamm noch trockener und enthält mehr Trockensubstanzgehalt.The The present invention relates to a method for drying in a sewage treatment plant Sludge produced by activated sludge process. Object of the invention it is that in every water treatment plant harnessed energy and thus increase sewage sludge disposal costs save up. Solved This task is done by putting the dewatered sludge in a dry mixer is dried with an air stream by heat exchange of ambient air with the for the aeration tank was heated to certain heated compressed air. Thus, the dehydrated sewage sludge even drier and contains more dry matter content.
In
Stand der Technik gemäß den Druckschriften
Jede Kläranlage mit Belebtschlammverfahren braucht im Belebungsbecken Sauerstoff, damit die Mikroorganismen die Schmutzstoffe abbauen. Um diesen Sauerstoff in die Belebungsbecken zu fördern, hat jede Kläranlage einen Gebläseraum und je nach Größe der Kläranlage mehrere Gebläse. Die Gebläse haben die Aufgabe, die Luft anzusaugen, zu verdichten und durch ein Leitungssystem in das Belebungsbecken zu fördern. Bei diesem Arbeitsvorgang entsteht in der Luftleitung wegen der Verdichtung und Reibung heiße Luft, z.B. sind in einer bekannten Kläranlage drei Gebläse (28m3/min.), die Luft ansaugen, verdichten und zum Belebungsbecken fördern, es entsteht in der Luftleitung mind. 108°C -max. 140°C heiße Luft (Angaben sind drehzahlabhängig), durchschnittlich ist 120°C heiße Luft in der Luftleitung. In dieser ca. 120°C heißen Luftleitung wird ein Kreuzstromwärmetauscher installiert, der Wirkungsgrad ist mind. 60%, die zurückgewonnene Energie beträgt 70°C–75°C. Die so gewonnene 70°C–75°C heiße Luft wird mit dem installierten Gebläse durch eine gut isolierte Kunststoffleitung in den Trockenmischer (Betonmischer) geleitet. Zusätzlich wird die (mind. 40°C) warme Luft im Gebläseraum, die durch den Betrieb der Gebläsemotoren entsteht, in die isolierte Leitung geleitet.Every activated sludge treatment plant needs oxygen in the aeration tank, so that the microorganisms break down the pollutants. To pump this oxygen into the aeration tanks, each wastewater treatment plant has a blower chamber and, depending on the size of the wastewater treatment plant, several blowers. The blowers have the task to suck in the air, to compress and to promote through a line system in the aeration tank. In this process, hot air is created in the air line due to the compression and friction, for example, in a known wastewater treatment plant three blowers (28m 3 / min.), Suck in the air, compress and promote the aeration tank, it creates at least 108 ° in the air line C max. 140 ° C hot air (information depends on speed), on average 120 ° C hot air in the air line. In this approximately 120 ° C hot air line, a cross-flow heat exchanger is installed, the efficiency is at least 60%, the recovered energy is 70 ° C-75 ° C. The thus obtained 70 ° C-75 ° C hot air is passed with the blower installed through a well-insulated plastic pipe in the dry mixer (concrete mixer). In addition, the (at least 40 ° C) warm air in the fan room, which results from the operation of the blower motors, is conducted into the insulated pipe.
Der entwässerte Klärschlamm wird nach einer Bandfilterpresse oder Kammerfilterpresse mit einem Schnecken- oder Förderband in den Trockenmischer gefördert (ganz normaler Betonmischer). Der entwässerte Klärschlamm mit 20%–35% enthaltener Trockensubstanz wird in den Betonmischer gefördert (10m3). Die gewonnene 70°C–75°C heiße Luft (Winter und Sommer) wird durch dieses oben genannte Leitungssystem von oben in den Betonmischer eingeleitet, während dessen dreht sich der Betonmischer in die Mischrichtung. Der Grund, warum die heiße Luft von oben in den Betonmischer eingeleitet wird, ist dass die Luft länger im Betonmischer bleibt und lange im Kontakt mit dem entwässerten Klärschlamm ist. Der im Betonmischer entstehende Dampf entweicht durch die Öffnung des Betonmischers nach oben. So erreicht man mind. 10%–20% mehr Trockensubstanz.The dewatered sewage sludge is conveyed to the dry mixer after a belt filter press or chamber filter press with a screw or conveyor belt (normal concrete mixer). The dewatered sewage sludge with 20% -35% contained dry matter is conveyed into the concrete mixer (10m 3 ). The recovered 70 ° C-75 ° C hot air (winter and summer) is introduced through this above-mentioned piping system from above into the concrete mixer, during which the concrete mixer rotates in the mixing direction. The reason why the hot air is introduced from above into the concrete mixer is that the air stays in the concrete mixer for a longer time and stays in contact with the dewatered sewage sludge for a long time. The steam produced in the concrete mixer escapes upwards through the opening of the concrete mixer. So you can reach at least 10% -20% more dry matter.
Dieser Betonmischer hat innen Flügel, wenn er sich in die Mischrichtung dreht, mischt er den Klärschlamm. Wenn er sich in die andere Richtung dreht, schüttet er die Trockensubstanz in einen Container aus. Herausragende Eigenschaften des neuen Trocknungsverfahrens für Klärschlamm:
- • Die Energie ist in allen Kläranlagen vorhanden Die nicht genutzte Energie in den Kläranlagen kann durch dieses Konzept genutzt werden
- • Geringe Investitionskosten
- • Einfaches Verfahren
- • Kein zusätzliches Personal
- • Der Arbeitsvorgang des Betonmischers ist einfach
- • Die Förderung und Trocknung des entwässerten Klärschlamms ist einfach Wenig Energieverbrauch des Mischers
- • Die Entleerung durch die Flügel des Mischers ist ein großer Vorteil
- • Man braucht keine zusätzlichen Gebäude
- • The energy is available in all sewage treatment plants The unused energy in the sewage treatment plants can be used by this concept
- • Low investment costs
- • Simple procedure
- • No additional staff
- • The operation of the concrete mixer is simple
- • The extraction and drying of the dewatered sewage sludge is simply low energy consumption of the mixer
- • Emptying through the blades of the mixer is a great advantage
- • You do not need additional buildings
Nachteile des neuen Trocknungsverfahrens für Klärschlamm:
- • Bei großen Kläranlagen mit über 50 000 EWG kann es zu Problemen führen
- • Bei großen Anlagen benötigt man mehr Platz
- • Bei großen Anlagen ist die Förderung und Entleerung komplizierter
- • Dieses Konzept wurde noch nicht praktiziert, um weitere Nachteile aufzulisten.
- • Large sewage treatment plants with more than 50 000 EEC may cause problems
- • Larger systems require more space
- • In large plants, the delivery and discharge is more complicated
- • This concept has not yet been practiced to list other disadvantages.
Im folgenden ist eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnung näher erläutert. Es zeigen:in the The following is a preferred embodiment of the invention closer to the drawing explained. Show it:
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036081A DE102004036081B4 (en) | 2004-07-24 | 2004-07-24 | New drying concept (drying plant) for sewage sludge |
| DE102015211378.7A DE102015211378A1 (en) | 2004-07-24 | 2015-06-19 | Process for drying sewage sludge and drying plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036081A DE102004036081B4 (en) | 2004-07-24 | 2004-07-24 | New drying concept (drying plant) for sewage sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102004036081A1 DE102004036081A1 (en) | 2006-02-16 |
| DE102004036081B4 true DE102004036081B4 (en) | 2007-12-27 |
Family
ID=35668600
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004036081A Revoked DE102004036081B4 (en) | 2004-07-24 | 2004-07-24 | New drying concept (drying plant) for sewage sludge |
| DE102015211378.7A Ceased DE102015211378A1 (en) | 2004-07-24 | 2015-06-19 | Process for drying sewage sludge and drying plant |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102015211378.7A Ceased DE102015211378A1 (en) | 2004-07-24 | 2015-06-19 | Process for drying sewage sludge and drying plant |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE102004036081B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2543643A1 (en) | 2011-07-07 | 2013-01-09 | Toren Cakir | Installation de séchage universelle à double paroi |
| DE102011051972A1 (en) | 2011-07-20 | 2013-01-24 | Dr. Pecher Ag | Compressed air system of wastewater treatment plant, comprises compressed-air unit by which air can be raised to higher pressure level, and pipe system for transporting compressed air to an air entry system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006054566B3 (en) * | 2006-11-20 | 2007-11-22 | Cakir, Ugur, Dipl.-Ing. | Drying of sludge for wastewater treatment plant comprises supplying moistness sludge into a drum mixer through filling opening and blowing the sludge by supplying dry air into the mixer over an extraction ventilator and a dehumidifier |
| DE102007055445B4 (en) | 2007-11-20 | 2010-01-07 | Cakir, Toren | Drying machine-drum mixer with pre-drying (screw drying) and post-drying (container drying) for sewage sludge |
| CN110981154B (en) * | 2019-12-19 | 2021-06-01 | 西安交通大学 | Sludge drying device and drying method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4016100A1 (en) * | 1990-05-18 | 1991-11-21 | Licencia Holding Sa | METHOD AND DEVICE FOR DRYING CLEANING SLUDGE |
| DE4331932A1 (en) * | 1992-09-17 | 1994-03-24 | Mannesmann Ag | Bio-gas prodn. from manure - has sludge gassing station to give gas for gas turbine for electricity generation and used sludge is dried for disposal |
| DE19547062A1 (en) * | 1995-12-18 | 1997-06-19 | Ml Entsorgungs Und Energieanla | Process and device for drying organic waste |
| DE19606917A1 (en) * | 1996-02-15 | 1997-08-21 | Ver Energiewerke Ag | Heat exchanger arrangement to dry fuel |
| DE69703975T2 (en) * | 1997-01-06 | 2001-11-15 | Youssef Bouchalat | OPTIMIZED METHOD FOR TREATING AND ENERGY RECOVERY OF MUNICIPAL AND INDUSTRIAL SEWAGE SLUDGE |
-
2004
- 2004-07-24 DE DE102004036081A patent/DE102004036081B4/en not_active Revoked
-
2015
- 2015-06-19 DE DE102015211378.7A patent/DE102015211378A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4016100A1 (en) * | 1990-05-18 | 1991-11-21 | Licencia Holding Sa | METHOD AND DEVICE FOR DRYING CLEANING SLUDGE |
| DE4331932A1 (en) * | 1992-09-17 | 1994-03-24 | Mannesmann Ag | Bio-gas prodn. from manure - has sludge gassing station to give gas for gas turbine for electricity generation and used sludge is dried for disposal |
| DE19547062A1 (en) * | 1995-12-18 | 1997-06-19 | Ml Entsorgungs Und Energieanla | Process and device for drying organic waste |
| DE19606917A1 (en) * | 1996-02-15 | 1997-08-21 | Ver Energiewerke Ag | Heat exchanger arrangement to dry fuel |
| DE69703975T2 (en) * | 1997-01-06 | 2001-11-15 | Youssef Bouchalat | OPTIMIZED METHOD FOR TREATING AND ENERGY RECOVERY OF MUNICIPAL AND INDUSTRIAL SEWAGE SLUDGE |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2543643A1 (en) | 2011-07-07 | 2013-01-09 | Toren Cakir | Installation de séchage universelle à double paroi |
| DE102011051972A1 (en) | 2011-07-20 | 2013-01-24 | Dr. Pecher Ag | Compressed air system of wastewater treatment plant, comprises compressed-air unit by which air can be raised to higher pressure level, and pipe system for transporting compressed air to an air entry system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015211378A1 (en) | 2015-08-20 |
| DE102004036081A1 (en) | 2006-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ON | Later submitted papers | ||
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8363 | Opposition against the patent | ||
| 8363 | Opposition against the patent | ||
| R082 | Change of representative | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150203 |
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| R037 | Decision of examining division or of federal patent court revoking patent now final |