WO2006133467A2 - Einrichtung zur anaeroben biologischen abwasserreinigung - Google Patents
Einrichtung zur anaeroben biologischen abwasserreinigung Download PDFInfo
- Publication number
- WO2006133467A2 WO2006133467A2 PCT/AT2006/000226 AT2006000226W WO2006133467A2 WO 2006133467 A2 WO2006133467 A2 WO 2006133467A2 AT 2006000226 W AT2006000226 W AT 2006000226W WO 2006133467 A2 WO2006133467 A2 WO 2006133467A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chamber
- line
- main chamber
- return tank
- wastewater
- Prior art date
Links
Classifications
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the invention relates to a device for anaerobic biological wastewater treatment, which wastewater can be supplied through a feed line and exits the purified wastewater through a drain line and gas formed by a Gasabrios Gustav, with a main chamber which can be fed in a lower area to be clarified wastewater and from the in a relatively higher area at least one lever line for discharging gas formed and purified, sludge-containing waste water emanates, which opens into a return tank for separating gas and purified, sludge-containing wastewater and the outlet opening in the return tank is higher than its inlet opening in the main chamber.
- these consist of a single reactor chamber into which the wastewater to be purified flows in at the bottom.
- a sludge bed which is the biologically active zone for the purification of the wastewater and through which the introduced wastewater passes.
- biogas consisting essentially of methane and carbon dioxide
- the device known from DE 33 30696 A1 can be used both for sludge fermentation and for anaerobic wastewater treatment.
- the main chamber in which the essential organic activity is present, has lateral overflow openings, which lead into a separation chamber surrounding the main chamber. At the outer edge of the separation chamber there is an overflow channel, from which the discharge line for the treated substrate emerges. By a bottom open partition in the separation chamber, a flow is first formed down and then upwards. At the bottom of the separation chamber, organically active sludge settles, which can be pumped back by means of a pump through a return line into the main chamber. Also in this device, there are accumulations of scum in the main chamber and in the inner region of the separation chamber, whereby maintenance is required. Furthermore, the retention of biologically active sludge is not optimal. Excessive discharge of biologically active sludge will unduly diminish biological activity in the main chamber.
- the object of the invention is to provide a device of the type mentioned, in which the maintenance effort is low and a discharge of biologically active sludge is effectively counteracted. According to the invention, this is achieved by a device having the features of claim 1.
- the secondary chamber into which the wastewater lifted into the return tank flows according to the invention forms a calming zone for the waste water, so that settable biologically active sludge can effectively settle.
- Floating sludge and other floating fragments eg oil-containing particles
- the retained sunken sludge can be recycled via the connection of the secondary chamber with the main chamber in turn into the main chamber. It is thus provided a very effective, low-maintenance device.
- a device according to the invention may conveniently be designed without separators for the gas separation.
- the settling zone conventionally located above the separators is not required in a device according to the invention since the settling of the biologically active sludge takes place in the secondary chamber.
- the main chamber in the region above the inlet opening in the at least one lifting line is tightly closed and optionally opening into this area in the main chamber lines are shut off by valves.
- the main chamber in the region above the inlet opening in the at least one lever arm is tightly closed and optionally opening into this area in the main chamber lines are shut off by valves.
- the outlet opening for discharging the purified wastewater from the secondary chamber is higher than the inlet opening into the at least one lifting line, preferably at least 2 m higher, this results in a pressure above atmospheric pressure of the gas located in the upper region of the main chamber. Then there is a pumping effect through the gas flowing into the lifting line, through which wastewater containing sludge particles is taken.
- Fig. 1 is a schematic plan view of a device according to a preferred embodiment of the invention
- Fig. 2 is a schematic section along the line A-A of Fig. 1
- Fig. 3 is a detail view in the region of the lower end of the lifting line.
- the device according to the invention shown in the figures has a reactor or a main chamber 1, in which opens in a lower region of the feed line 4 for the wastewater to be clarified.
- the supply of waste water takes place in any case in the lower quarter of the main chamber 1, with a distance from the bottom of less than 1 m is preferred.
- the feed line 4 has a plurality of outlets 21.
- the supply line could also be formed by a plurality of branches guided separately into the main chamber 1.
- the active zone 5 can also be formed as a so-called fixed bed, which is formed by a bed of a filter medium with a biofilm grown thereon and interposed biologically active sludge.
- liquid and gas zone 6 whereby the liquid level 7 which is established in steady-state operation (continuous operation) is indicated by a dashed line. Above the liquid level 7 is due to the liquid ascended biogas.
- the normally relatively sharp boundary 8 between the active zone 5 and the liquid and gas zone 6 may change depending on the operating conditions during operation.
- purified wastewater which, however, in particular contains sludge particles From the active zone 5 sludge particles v. a. taken by the rising gas. Apart from those particles which can settle in a quiet environment, there is normally also a constituent of substances which can be floated, for example particles of floating sludge or fat particles.
- the inlet opening 10 in the lifting line 9 is advantageously located at a distance below the upper boundary wall of the main chamber, which is smaller than a quarter of the height of the main chamber. A distance from the upper boundary wall of less than 15% of the height of the main chamber 1 is preferred.
- the inlet opening 10 in the lifting line 9 comprises in the embodiment shown a plurality of slots in the vicinity of the lower end of the lifting line 9, the window-like openings in the wall of the lifting line 9 represent. There are a plurality of circumferentially spaced apart slots. Furthermore, the lower end of the lifting line 9 is formed open. A closed design of the lower end is conceivable and possible.
- the return tank 2 is completely above the main chamber 1, as shown in FIG. 2 can be seen.
- Gas and purified, sludge-containing wastewater pass through the lifting line 9 into the return tank 2, as will be described below.
- a separation of particle-containing wastewater and gas In the return tank 2, a separation of particle-containing wastewater and gas. Gas enters through a gas outlet tion 13, which is formed in the illustrated embodiment of the open upper end of the return tank 2, out of the return tank 2 and enters the secondary chamber. 3
- the cleaned, sludge-containing wastewater flows through the return line 12 leaving the return tank 2 into the secondary chamber 3.
- the return line 12 preferably proceeds from the return tank 2 from a point lower than the outlet opening 11 of the lifting line 9
- Return line 12 is preferably lower than the point at which it emanates from the return tank 2. In the embodiment shown, this mouth 14 down.
- the sub-chamber 3 is connected to the main chamber 1 via a valve which is formed by a check valve 15 in the intermediate wall 22 between the sub-chamber 3 and the main chamber 1.
- this connection is less than 1 m above the bottom of the auxiliary chamber 3 and the main chamber. 1
- the purified wastewater is discharged, and indeed in the illustrated embodiment, an upwardly open drainage channel 23 is present, from which the discharge line 24 emanates for the treated wastewater.
- the outlet opening 25 for the purified waste water from the auxiliary chamber 3 is thus formed by the opening of the drainage channel 23.
- liquid level 16 in the auxiliary chamber 3 is shown by a dashed line.
- liquid level 17 in the return tank 2 can be slightly higher (due to hydrodynamic effects).
- biogas which flows in from the return tank 2 and can also be formed to a lesser extent in the secondary chamber 3 itself.
- the auxiliary chamber 3 which is higher than the outlet opening 25 for the treated wastewater, there is an outlet opening 29 for the biogas to dissipate this in the gas discharge line 18.
- the biogas formed is utilized. Flaring is conceivable and possible.
- biologically active sludge particles can settle and pass back through the check valve 15 back into the main chamber, so that biologically active sludge is possible not lost. Floatable particles, however, are discharged through the drain line 24, so that scum deposits are avoided.
- the secondary chamber 3 comprises an inflow section 19, in which the return line 12 opens and an overlying expansion portion 20, the horizontal cross-sectional area is substantially larger, preferably more than three times as large as the horizontal cross-sectional area of the inflow 19.
- the inflow 19 There is already in the inflow 19 a calmed zone before, the entrained for settling of the wastewater Mud particles serves. The upward flow, however, can still take lighter, dedustable sludge particles with it.
- the expansion section 20 there is a further reassurance, so that these sludge particles can settle.
- Biologically active sludge settling on the bottom of the expansion section 20 is returned by a backwash described below.
- a connecting line 26 in which an openable and closable shut-off valve is arranged and which opens into the upper region of the auxiliary chamber 3 (also an opening in the Gasabriostechnisch 18, from the upper area the auxiliary chamber 3 goes out is conceivable and possible).
- a connection between the main chamber 1 and the auxiliary chamber 3 is also present, which connects the main chamber 1 with the auxiliary chamber 3 in a region above half the height of the main chamber 1 and above the active zone 1, but below the inlet opening 10 in the lifting line 9
- This connection could be formed by a line.
- it is formed by an opening 28 in the intermediate wall 22 between the main chamber 1 and the auxiliary chamber 3.
- the opening cross section of this opening 28 is smaller than the opening cross section of the open check valve 15th
- the shut-off valve 27 is opened.
- the liquid level 16 in the auxiliary chamber 3 decreases in the sequence and the liquid level 7 in the main chamber increases until they are at the same level.
- a corresponding amount of liquid flows through the non-return flap 15 from the auxiliary chamber 3 into the main chamber 1.
- thorough mixing of the sludge bed in the main chamber 1 is achieved.
- sedimented sludge is returned to the main chamber 1.
- settled sludge is backwashed into the inflow section 19 of the auxiliary chamber 3.
- connection formed between the main chamber 1 and the secondary chamber 3 in the illustrated embodiment of the opening 28 could also be omitted. After a backwashing, however, no gas would then initially be conveyed through the gas discharge line 18. In the presence of the opening 28, the gas delivery is thus more uniform.
- the gas outlet opening 13 of the return tank 2 could also lead into a line through which gas is fed directly to the gas discharge line 18.
- the check valve 15 could be arranged instead of their arrangement in the intermediate wall 22 in a connecting the lower region of the auxiliary chamber 3 with the lower region of the main chamber 1 connecting line. Instead of a check valve 15 could be present in the intermediate wall 22 or in a connecting line between the auxiliary chamber 3 and the main chamber 1 and an openable and closable shut-off valve.
- the secondary chamber 3 may comprise a plurality of individual chambers.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/917,504 US7531085B2 (en) | 2005-06-16 | 2006-05-13 | Device for purifying anaerobic biological wastewater |
BRPI0613280-4A BRPI0613280A2 (pt) | 2005-06-16 | 2006-05-31 | dispositivo para depuração biológica anaeróbica de esgoto |
CA 2612154 CA2612154A1 (en) | 2005-06-16 | 2006-05-31 | Device for purifying anaerobic biological wastewater |
EP06741025A EP1890974A2 (de) | 2005-06-16 | 2006-05-31 | Einrichtung zur anaeroben biologischen abwasserreinigung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1013/2005 | 2005-06-16 | ||
AT0101305A AT502184B1 (de) | 2005-06-16 | 2005-06-16 | Einrichtung zur anaeroben biologischen abwasserreinigung |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006133467A2 true WO2006133467A2 (de) | 2006-12-21 |
WO2006133467A3 WO2006133467A3 (de) | 2007-04-19 |
Family
ID=37526933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2006/000226 WO2006133467A2 (de) | 2005-06-16 | 2006-05-31 | Einrichtung zur anaeroben biologischen abwasserreinigung |
Country Status (7)
Country | Link |
---|---|
US (1) | US7531085B2 (de) |
EP (1) | EP1890974A2 (de) |
AT (1) | AT502184B1 (de) |
BR (1) | BRPI0613280A2 (de) |
CA (1) | CA2612154A1 (de) |
RU (1) | RU2395464C2 (de) |
WO (1) | WO2006133467A2 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4302329A (en) | 1979-01-03 | 1981-11-24 | Herbert Pfefferkorn | Installation for the recovery of methane gas from organic waste |
DE8211869U1 (de) | 1982-04-24 | 1983-10-06 | Brand, Rolf August, Dipl.-Ing., 8012 Ottobrunn | Faulraum zur biogaserzeugung |
DE3211888A1 (de) | 1982-03-31 | 1983-10-20 | Bsa Maschinenfabrik Paul G. Langer Gmbh, 8581 Marktschorgast | Vorrichtung zur anaeroben vergaerung organischen materials |
DE3330696A1 (de) | 1983-08-25 | 1985-03-14 | Linde Ag, 6200 Wiesbaden | Anlage zum anaeroben abbau organischer substrate |
EP0170332A1 (de) | 1984-07-24 | 1986-02-05 | Paques B.V. | Ausrüstung für die anaerobe Abwasserbehandlung |
EP0539430B1 (de) | 1990-07-19 | 1994-10-26 | Paques B.V. | Bioreaktor |
EP1251103A2 (de) | 1995-03-31 | 2002-10-23 | Edwards Laboratories, Inc. | Methode und Vorrichtung zur Abwasserbehandlung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2904449A1 (de) * | 1978-02-06 | 1979-08-09 | Ver Gebruikers Stoomketels | Anlage zum anaeroben reinigen von abwasser |
DE3111888A1 (de) | 1981-03-26 | 1982-10-28 | Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden | Latentwaermespeicher |
DE19815616A1 (de) | 1998-04-07 | 1999-10-14 | Zeppelin Silo & Apptech Gmbh | Verfahren und Vorrichtung zum Reinigen von Abwasser |
DE19931085A1 (de) | 1999-07-06 | 2001-02-22 | Usf Deutschland Gmbh | Verfahren und Vorrichtung zum Reinigen von Abwasser |
-
2005
- 2005-06-16 AT AT0101305A patent/AT502184B1/de not_active IP Right Cessation
-
2006
- 2006-05-13 US US11/917,504 patent/US7531085B2/en not_active Expired - Fee Related
- 2006-05-31 RU RU2008101658A patent/RU2395464C2/ru not_active IP Right Cessation
- 2006-05-31 EP EP06741025A patent/EP1890974A2/de not_active Withdrawn
- 2006-05-31 BR BRPI0613280-4A patent/BRPI0613280A2/pt not_active IP Right Cessation
- 2006-05-31 WO PCT/AT2006/000226 patent/WO2006133467A2/de active Application Filing
- 2006-05-31 CA CA 2612154 patent/CA2612154A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4302329A (en) | 1979-01-03 | 1981-11-24 | Herbert Pfefferkorn | Installation for the recovery of methane gas from organic waste |
DE3211888A1 (de) | 1982-03-31 | 1983-10-20 | Bsa Maschinenfabrik Paul G. Langer Gmbh, 8581 Marktschorgast | Vorrichtung zur anaeroben vergaerung organischen materials |
DE8211869U1 (de) | 1982-04-24 | 1983-10-06 | Brand, Rolf August, Dipl.-Ing., 8012 Ottobrunn | Faulraum zur biogaserzeugung |
DE3330696A1 (de) | 1983-08-25 | 1985-03-14 | Linde Ag, 6200 Wiesbaden | Anlage zum anaeroben abbau organischer substrate |
EP0170332A1 (de) | 1984-07-24 | 1986-02-05 | Paques B.V. | Ausrüstung für die anaerobe Abwasserbehandlung |
EP0539430B1 (de) | 1990-07-19 | 1994-10-26 | Paques B.V. | Bioreaktor |
EP1251103A2 (de) | 1995-03-31 | 2002-10-23 | Edwards Laboratories, Inc. | Methode und Vorrichtung zur Abwasserbehandlung |
Also Published As
Publication number | Publication date |
---|---|
CA2612154A1 (en) | 2006-12-21 |
RU2395464C2 (ru) | 2010-07-27 |
WO2006133467A3 (de) | 2007-04-19 |
AT502184A4 (de) | 2007-02-15 |
US7531085B2 (en) | 2009-05-12 |
AT502184B1 (de) | 2007-02-15 |
BRPI0613280A2 (pt) | 2010-12-28 |
US20080203003A1 (en) | 2008-08-28 |
RU2008101658A (ru) | 2009-07-27 |
EP1890974A2 (de) | 2008-02-27 |
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