WO2003018169A1 - Verwendung von kunststoffplatten mit hohlräumen als lamellenseparatoren in der abwasseraufbereitung - Google Patents
Verwendung von kunststoffplatten mit hohlräumen als lamellenseparatoren in der abwasseraufbereitung Download PDFInfo
- Publication number
- WO2003018169A1 WO2003018169A1 PCT/EP2002/008915 EP0208915W WO03018169A1 WO 2003018169 A1 WO2003018169 A1 WO 2003018169A1 EP 0208915 W EP0208915 W EP 0208915W WO 03018169 A1 WO03018169 A1 WO 03018169A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plastic plates
- plates
- cavities
- plastic
- wastewater treatment
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
Definitions
- the invention relates to the use of special plastic sheets with integrated cavities as so-called separating plates for lamella separators in wastewater treatment.
- the most widespread methods for wastewater treatment are the aeration tank, in which the water constituents of microorganisms suspended in the wastewater are converted under appropriate conditions, and the secondary clarification tank, in which the bacteria are separated from the water by sedimentation, and then pumped back into the aeration tank to become.
- slats in the form of a slat package are used. Part of the biomass is retained in the aeration tank by sedimentation.
- lamella or plate separators also known as clarifiers or thickeners
- the settling area is greatly increased.
- the use of plate packs in the activated sludge process in the activated sludge tank is known for example from DE-C-4 329 239 and DE-A-19 800 664.
- a disadvantage of the plate packs used is that they are very heavy, and therefore complex support and holding structures must be installed in order to be able to absorb the corresponding forces. This is particularly important for deep aeration tanks Disadvantage.
- the existing installation of the lamella packs in existing aeration tanks is very complex and the tank also has to be emptied.
- the object of the present invention was therefore to provide a structure for an aeration tank, which on the one hand has the advantage of the enlarged sales area, but on the other hand avoids the construction of complex support and holding structures and possibly a necessary reinforcement of the pool floor.
- the invention therefore relates to the use of plastic plates with integrated, open and / or closed cavities as separating plates for lamella separators in wastewater treatment.
- the plastic sheets with integrated cavities used have a basis weight of ⁇ 5 kg / m 2 , preferably from 0.8 to 4 kg / m 2 , particularly preferably from 1.5 to 3 kg / m 2 .
- the preferred plate thickness is 4 to 50 mm, particularly preferably 8 to 32 mm.
- plastic plates with integrated cavities all or only a part of which is closed, the plastic plates experience In addition, buoyancy when used in the aeration tank, so that the weight of the construction is also reduced.
- the plastic sheets with integrated cavities used are preferably double and multi-wall sheets, including M, X or similar
- the plastic sheets with integrated cavities can be made from polycarbonate, polystyrene, polymethyl methacrylate, polyethylene, polypropylene, polyvinyl chloride, polyester, acrylic butadiene styrene and blends thereof.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10141211A DE10141211A1 (de) | 2001-08-22 | 2001-08-22 | Verwendung von Kunststoffplatten in der Abwasseraufbereitung |
DE10141211.8 | 2001-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003018169A1 true WO2003018169A1 (de) | 2003-03-06 |
Family
ID=7696284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/008915 WO2003018169A1 (de) | 2001-08-22 | 2002-08-09 | Verwendung von kunststoffplatten mit hohlräumen als lamellenseparatoren in der abwasseraufbereitung |
Country Status (3)
Country | Link |
---|---|
US (1) | US20030038070A1 (de) |
DE (1) | DE10141211A1 (de) |
WO (1) | WO2003018169A1 (de) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2433150A1 (de) * | 1973-07-12 | 1975-02-06 | Begg Cousland & Co Ltd | Trennvorrichtung fuer partikel von einem fluessigkeitsstrom |
US4122017A (en) * | 1976-12-28 | 1978-10-24 | Shinko-Pfaudler Company, Ltd. | Device for separating suspended material from a fluid stream by specific gravity difference |
US4136012A (en) * | 1976-09-17 | 1979-01-23 | Degremont | Compact apparatus for the purification of waste water by a physical chemical treatment |
EP0239199A1 (de) * | 1986-02-03 | 1987-09-30 | Filter Plate Company | Separationssystem unter Verwendung von Koaleszenztechniken |
EP0351682A2 (de) * | 1988-07-18 | 1990-01-24 | Preussag Aktiengesellschaft | Klärvorrichtung |
FR2679545A1 (fr) * | 1991-07-26 | 1993-01-29 | Chapuis Philippe | Dispositif de decantation des eaux usees. |
DE19524841A1 (de) * | 1995-07-07 | 1997-01-09 | Schachtbau Nordhausen Gmbh | Verwendung wiederaufbereiteter poröser Kunststoffe bei der Abwasserreinigung |
US5736037A (en) * | 1996-08-29 | 1998-04-07 | Meurer; Charles Lonnie | Foldable tube settler and method of installing tube settler |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5339655A (en) * | 1976-09-24 | 1978-04-11 | Niigata Eng Co Ltd | Treatment of drainage water in use of unwoven fabric sheet |
DE19800664C2 (de) * | 1997-07-11 | 2002-04-11 | Shw Hoelter Wassertechnik Gmbh | Verfahren zur biologischen Abwasserreinigung und Anlage zur Durchführung des Verfahrens |
-
2001
- 2001-08-22 DE DE10141211A patent/DE10141211A1/de not_active Withdrawn
-
2002
- 2002-08-09 WO PCT/EP2002/008915 patent/WO2003018169A1/de not_active Application Discontinuation
- 2002-08-20 US US10/224,258 patent/US20030038070A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2433150A1 (de) * | 1973-07-12 | 1975-02-06 | Begg Cousland & Co Ltd | Trennvorrichtung fuer partikel von einem fluessigkeitsstrom |
US4136012A (en) * | 1976-09-17 | 1979-01-23 | Degremont | Compact apparatus for the purification of waste water by a physical chemical treatment |
US4122017A (en) * | 1976-12-28 | 1978-10-24 | Shinko-Pfaudler Company, Ltd. | Device for separating suspended material from a fluid stream by specific gravity difference |
EP0239199A1 (de) * | 1986-02-03 | 1987-09-30 | Filter Plate Company | Separationssystem unter Verwendung von Koaleszenztechniken |
EP0351682A2 (de) * | 1988-07-18 | 1990-01-24 | Preussag Aktiengesellschaft | Klärvorrichtung |
FR2679545A1 (fr) * | 1991-07-26 | 1993-01-29 | Chapuis Philippe | Dispositif de decantation des eaux usees. |
DE19524841A1 (de) * | 1995-07-07 | 1997-01-09 | Schachtbau Nordhausen Gmbh | Verwendung wiederaufbereiteter poröser Kunststoffe bei der Abwasserreinigung |
US5736037A (en) * | 1996-08-29 | 1998-04-07 | Meurer; Charles Lonnie | Foldable tube settler and method of installing tube settler |
Also Published As
Publication number | Publication date |
---|---|
DE10141211A1 (de) | 2003-04-10 |
US20030038070A1 (en) | 2003-02-27 |
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