WO2001012563A1 - Verfahren und vorrichtung zur biologischen abwasserreinigung - Google Patents
Verfahren und vorrichtung zur biologischen abwasserreinigung Download PDFInfo
- Publication number
- WO2001012563A1 WO2001012563A1 PCT/EP2000/007133 EP0007133W WO0112563A1 WO 2001012563 A1 WO2001012563 A1 WO 2001012563A1 EP 0007133 W EP0007133 W EP 0007133W WO 0112563 A1 WO0112563 A1 WO 0112563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- basin
- nitrification
- tank
- biomass
- denitrification
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
Definitions
- the invention relates to a method and a device for biological wastewater purification, in which the wastewater to be treated is fed to a activated sludge tank, in which sludge water tanks are breathed out of a biomass, in particular bacteria, in the sludge / wastewater mixture with the exclusion of air or oxygen, and in the subsequent step the wastewater mixture and excess sludge are fed to a nitrification tank and then fed to a settling tank in which
- Sedimentation basin the biomass is separated from the water by sedimentation and returned to the denitrification basin.
- the invention has for its object to overcome the disadvantages of the prior art and to provide a method and an apparatus in which the nitrogen can be safely removed with a relatively low technical effort and thus at relatively low cost.
- the object underlying the invention is achieved by a method according to the preamble of claim 1, which is characterized in that the proportion of biomass in the denitrification basin is increased by obliquely arranged lamellae which are arranged in the denitrification basin before the outflow to the nitrification basin that a dry matter content of 4 to 12 g / l is set in the denitrification tank.
- a part of the existing pool volume is separated and provided with lamella separators in order to increase the proportion of the biomass in the denitrification zone without stressing the subsequent parts of the plant. This corresponds in effect to an increase in the pelvic volume and thus an improvement in denitrification without expanding the pelvis itself in volume. Therefore, the object of the invention is also used in particular to expand existing plants for biological wastewater treatment, in which spatial expansion is not possible due to local conditions, and to increase their efficiency.
- the proportion of biomass in the nitrification basin is increased by slats which are arranged at an incline and are arranged in the nitrification basin before the outlet to the settling basin, and a dry substance content of 4 to 12 g / l is set in the nitrification basin.
- oxygen, air or nitrogen enriched with oxygen is fed to the denitrification basin in the region of the fins.
- pure here means a technical purity, which means a purity of 70 to 99% by volume.
- a partial flow of the biomass separated in the sedimentation basin is returned to the nitrification basin.
- the object underlying the invention is further achieved by a device according to the preamble of claim 6, which is characterized in that lamellae are arranged before the drain from the denitrification tank to the nitrification tank, and that the lamellae rise obliquely in the direction of the drain to the nitrification tank.
- the device according to the invention has the advantage that such an increase in efficiency with technically relatively simple means and at relatively low Cost is possible. In addition, it is not necessary to increase the volume of the pelvis.
- lamellae are arranged before the nitrification basin runs off to the sedimentation basin and the slats rise obliquely in the direction of the drainage to the sedimentation basin.
- the lamellae are arranged over the entire width in the denitrification basin and serve as a partition to the adjoining basin in order to adjust the volume of the basin.
- the method and the device according to the invention are preferably used for the biological wastewater treatment of wastewater from industry or municipalities.
- Fig. 1 shows an embodiment of the device according to the invention with lamellae in the denitrification tank.
- Fig. 2 shows an embodiment of the device according to the invention with lamellae in the denitrification basin and in the nitrification basin.
- FIG 3 shows an embodiment of the device according to the invention with lamellae in the denitrification tank and in the nitrification tank with additional recycling of the biomass separated in the sedimentation tank into the nitrification tank.
- the sludge / wastewater mixture from the activation tank is fed to the denitrification tank 2 via an inlet 1.
- a lamella separator 5 is arranged in front of the outlet 3 of the denitrification tank 2 into the nitrification tank 4.
- the Lamellar separator 5 has slat packs 6 which run at an incline and is preferably arranged at the end of the flow path of the denitrification basin over its entire width and height before the outlet 3.
- One or more perforated hoses can advantageously be arranged directly in front of or on the lamella separator 5 for aeration of the sludge / waste water mixture (not shown in FIG. 1).
- Sedimentation basin 8 The cleaned waste water leaves the sedimentation basin 8 via the outlet 9 and the biomass is returned to the inlet 1 through a line 10. Sludge is returned internally from the nitrification basin 4 into the denitrification basin 2 through a line 11.
- the device shown in FIG. 2 corresponds to the device shown in FIG. 1, a second lamella separator 12 with obliquely arranged lamella packets 16 being additionally arranged in the nitrification tank 4.
- the device shown in FIG. 3 shows an embodiment which is expanded compared to the device according to FIG. 2 with an additional return 14 of the sludge from the settling tank 8 into the nitrification tank 4.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00956279A EP1226096A1 (de) | 1999-08-11 | 2000-07-26 | Verfahren und vorrichtung zur biologischen abwasserreinigung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19938016.3 | 1999-08-11 | ||
DE1999138016 DE19938016A1 (de) | 1999-08-11 | 1999-08-11 | Verfahren und Vorrichtung zur biologischen Abwasserreinigung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001012563A1 true WO2001012563A1 (de) | 2001-02-22 |
Family
ID=7918031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/007133 WO2001012563A1 (de) | 1999-08-11 | 2000-07-26 | Verfahren und vorrichtung zur biologischen abwasserreinigung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1226096A1 (de) |
DE (1) | DE19938016A1 (de) |
WO (1) | WO2001012563A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7166214B2 (en) | 2004-09-29 | 2007-01-23 | 3Ma Solutions Incorporated | Dental amalgam separator |
EP1892223A1 (de) | 2001-09-26 | 2008-02-27 | Strategic Environmental Technologies Ltd. | Biologische Wasseraufbereitungsvorrichtung mit einer Bakterienwuchsvorrichtung und zugehöriges Verfahren |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10215413A1 (de) * | 2002-04-08 | 2003-10-23 | Air Liquide Gmbh | Verfahren zur Aufbereitung von Wasser sowie Aufbereitungsanlage |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048630A1 (de) * | 1980-09-24 | 1982-03-31 | Nealvane Limited | Behandlung von Abwasser |
EP0504019A1 (de) * | 1991-03-08 | 1992-09-16 | OTV (OMNIUM de TRAITEMENTS et de VALORISATION) | Verfahren für die biologische Reinigung von Wasser durch Nitrifikation und Denitrifikation |
FR2753191A1 (fr) * | 1996-09-10 | 1998-03-13 | Degremont | Procede d'epuration de la pollution carbonee et de denitrification en milieu oxygene des eaux usees |
DE19644334A1 (de) * | 1996-10-25 | 1998-04-30 | Bernd Dr Ing Diering | Verfahren zur biologischen und biologisch-chemischen Aufbereitung von Abwasser sowie Anlage zur Durchführung dieses Verfahrens |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6920087U (de) * | 1969-05-14 | 1970-03-19 | Bert Wahl | Gelber tennisball |
DE3534957A1 (de) * | 1985-10-01 | 1987-04-09 | Diering Bernd Dipl Ing | Verfahren und anlage zur denitrifikation von trinkwasser |
DE4329239C2 (de) * | 1993-08-26 | 1997-09-11 | Ivan Prof Dr Ing Sekoulov | Verfahren und Vorrichtung zur biologischen Abwasserreinigung |
DE19800664C2 (de) * | 1997-07-11 | 2002-04-11 | Shw Hoelter Wassertechnik Gmbh | Verfahren zur biologischen Abwasserreinigung und Anlage zur Durchführung des Verfahrens |
-
1999
- 1999-08-11 DE DE1999138016 patent/DE19938016A1/de not_active Ceased
-
2000
- 2000-07-26 WO PCT/EP2000/007133 patent/WO2001012563A1/de not_active Application Discontinuation
- 2000-07-26 EP EP00956279A patent/EP1226096A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048630A1 (de) * | 1980-09-24 | 1982-03-31 | Nealvane Limited | Behandlung von Abwasser |
EP0504019A1 (de) * | 1991-03-08 | 1992-09-16 | OTV (OMNIUM de TRAITEMENTS et de VALORISATION) | Verfahren für die biologische Reinigung von Wasser durch Nitrifikation und Denitrifikation |
FR2753191A1 (fr) * | 1996-09-10 | 1998-03-13 | Degremont | Procede d'epuration de la pollution carbonee et de denitrification en milieu oxygene des eaux usees |
DE19644334A1 (de) * | 1996-10-25 | 1998-04-30 | Bernd Dr Ing Diering | Verfahren zur biologischen und biologisch-chemischen Aufbereitung von Abwasser sowie Anlage zur Durchführung dieses Verfahrens |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1892223A1 (de) | 2001-09-26 | 2008-02-27 | Strategic Environmental Technologies Ltd. | Biologische Wasseraufbereitungsvorrichtung mit einer Bakterienwuchsvorrichtung und zugehöriges Verfahren |
US7166214B2 (en) | 2004-09-29 | 2007-01-23 | 3Ma Solutions Incorporated | Dental amalgam separator |
Also Published As
Publication number | Publication date |
---|---|
EP1226096A1 (de) | 2002-07-31 |
DE19938016A1 (de) | 2001-02-22 |
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