EP2660400A2 - Device for collecting and filtering rain water on traffic surfaces - Google Patents
Device for collecting and filtering rain water on traffic surfaces Download PDFInfo
- Publication number
- EP2660400A2 EP2660400A2 EP13165922.9A EP13165922A EP2660400A2 EP 2660400 A2 EP2660400 A2 EP 2660400A2 EP 13165922 A EP13165922 A EP 13165922A EP 2660400 A2 EP2660400 A2 EP 2660400A2
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- EP
- European Patent Office
- Prior art keywords
- sedimentation
- water treatment
- precipitation water
- treatment device
- housing
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0405—Gullies for use in roads or pavements with an odour seal
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
- E03F2005/0418—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a bell siphon
Definitions
- the invention relates to a precipitation water treatment device having the features of the preamble of claim 1, in particular for receiving surface water from traffic areas.
- the DE 20 2008 004 861 U1 discloses a precipitation water treatment apparatus for treating rainwater supplied, for example, from the roof drainage of a building.
- the water is introduced directly into an apertured water inlet body and from there it transits through a substrate layer into a semi-drainage pipe in the bottom area, from where it is discharged.
- the water inlet body settles by entrained dirt and suspended matter in use and can then be cleaned only by consuming rinsing.
- the known device may be suitable for rainwater, which is passed through a pipeline directly into the water inlet body, but it is not suitable for the discharge of surface water, since the filter substrate is not covered therein and thus easily by mud, leaves and other dirt can enforce.
- the known precipitation water treatment device forms a water-blocking element, so that it comes to the backwater in the supply lines.
- the object of the present invention is therefore to provide a precipitation water treatment device, filtered with the surface water from traffic surfaces and then can be derived, with an easy cleaning of the device should be possible and should be given a long service life of the filter substrate.
- the invention is characterized in that at the same time a cover of the substrate and at the same time a sedimentation device and an oil / light liquid separation is provided by the entrained contaminants such. Suspended solids / sediments are largely separated, so that as far as possible only dissolved dirt loads or possibly even ultrafine particles with the surface water get into the filter substrate.
- the precipitation water treatment device according to the invention is preferably based optically on the design of line drainage systems.
- Other, for example rectangular or round shapes are also conceivable.
- the sedimentation container may in particular be designed as a channel having rectangular, semicircular or even other cross-sectional shapes, e.g. be configured with a V-shaped cross-section, and may consist of a single element or a combination of water guide structures.
- channel-like sedimentation containers are present, they can be positioned individually or in groups of several systems combined in the upper part of a precipitation water treatment device.
- a baffle element which engages in the sedimentation containers, so that a riser channel is formed.
- the baffle element may be fixed but is preferably removable for better maintenance or inspection operations.
- the precipitation water treatment apparatus includes the function of protecting against freezing in the sedimentation stage integrated immersion wall or the riser between the sedimentation and immersion wall.
- Abströmduch Entryen are provided in the sedimentation, which are covered or filled with filter / coalescence.
- the filter fabric Through the filter fabric, the flow rate is greatly slowed down, so that the precipitation preferably flows past the baffle over the overflow edges of the sedimentation n into the substrate and less through the outflow passages in the sedimentation n.
- the discharge ducts allow the precipitation water treatment device to function even if the accumulated precipitation drain freezes after the rainfall subsides and the outside temperature drops.
- the accumulation space in the sedimentation container can empty itself independently via the outflow device. However, this happens in the form that the sediments and also oils and light liquids which were retained in the sedimentation stage are not discharged. This process is controlled by the hydraulic permeability of the discharge device as well as by the remaining damming height in the sedimentation stage.
- an air space should preferably be present so that the outflow feedthroughs preferably introduced below into the sedimentation containers do not themselves freeze.
- the precipitation water treatment device according to the invention can be used either individually or in combination with other treatment plants, for example combined to form a strand.
- connection of the individual treatment plants takes place with one another in a form-fitting manner and does not give rise to any bypasses which allow the precipitation discharge to pass untreated or untreated through the rainwater treatment plant. This applies equally in the Range of impacts of the individual intake structures, substrate layers, separating elements and drainage areas.
- an inspection opening is provided, so that an insight into the drainage channel or a cleaning possibility of the same is possible. This can be both tightly closed and used as an unlocked emergency overflow.
- the precipitation water treatment plant can be combined with standard line drainage systems that have only one rainwater runoff or rainwater collection function.
- the rainwater can be supplied to the sedimentation zone both via the wastewater treatment plant and or via the line drainage gutter structures.
- FIG. 1 shows a section through a precipitation water treatment device 100. It consists in the illustrated embodiment of a channel-shaped housing 10 with a U-shaped profile cross-section.
- the precipitation discharge is introduced via a specially designed inlet grate 13 in the wastewater treatment plant 100.
- the inlet grate 13 is preferably designed so that blockage of the system is largely prevented.
- the openings are designed so that a cross-sectional enlargement from the inlet side to the outlet side of the grating 13 takes place.
- Coarse dirt particles which may be contained in the surface runoff and reach the inlet grate 13, such as leaves, are carried into the system without blocking the inlet grate 13.
- the inlet grate 13 may be formed of metal, eg cast iron, stainless steel or zinc sheet, or of plastics.
- the inlet grille 13 also provides a stable cover that can be overridden by vehicles. If entry and driving is precluded by other measures, the precipitation water treatment apparatus 100 can also be used without an inlet grille 13.
- the pre-filtered by the inlet grate 13 and freed of coarse contaminants precipitation outflow then enters the sedimentation, whose sedimentation is formed here by way of example by two sedimentation channels 11.
- the pre-cleaned rainwater drainage is dammed.
- Substances which tend to sediment due to their weight deposit on the bottom of the sedimentation containers 11.
- heavy metals deposited on the sediment will also deposit in this area.
- the sedimentation area formed by the sedimentation grooves 11 is positioned at the upper portion of the precipitation water treatment apparatus 100. The sedimentation is thus very easily accessible via the inlet grate 13 and can be cleaned without further aids.
- the sedimentation troughs 11 positioned above a substrate layer 16 already largely cover the substrate.
- the gap in the cover is completed by a baffle element 20.
- the substrate 16 is also protected against gushing incoming water.
- the baffle element 20 engages with a profile leg 21 in the sedimentation troughs 11.
- a common baffle element 20 is provided for both sedimentation 11. It has a U-shaped profile shape.
- a vertical riser channel 14 is formed between the upstanding profile legs 21 and the inner, mutually facing side edges of the Sedimentationsrinnen 11, which are formed as overflow edges by being formed slightly deeper than the respective other side edge. So water can only flow through the riser 14 into the substrate 16. Oils, light liquids or other dirt loads entrained on the surface of the accumulated precipitation drainage remain in the sedimentation channel 11 and are removed there with the cleaning or reach a further outlet at the end of the respective sedimentation channel 11, where they can be collected. There is thus provided an effective oil light liquid separation function.
- the precipitation outflows thus reach the riser channel 14 in an already pre-cleaned form and flow via the overflow edge of the sedimentation channel into the inner overflow region, where they seep into the substrate layers 16, 17.
- diffuser elements 13 are preferably arranged over the length of the sedimentation channels 11, in particular FIG. 2 shows.
- the diffuser elements 13 are provided in this embodiment as separate elements, which are arranged at a distance from each other along the central axis of the sedimentation 11. Also possible is the bottom of the sedimentation troughs to design accordingly and to integrate a diffuser function.
- the arrangement of the diffuser elements 13 along the sedimentation trough is in FIG. 3 shown.
- the diffuser elements 13 each have a lower run-off edge, which lies below the sedimentation groove 11 and extends in particular horizontally, so that the dripping of the water is not only punctiform but takes place over a greater width transversely to the longitudinal extent of the sedimentation grooves 11.
- the diffuser elements can also be placed even closer to each other and they can also be profiled dovetailed or fanned out just to span a larger area of the underlying substrate daruter.
- the diffuser elements 13 have a gutter in somewhat the shape of a gutter hook. Since they, like the gutter hooks in the gutter, surround the sedimentation gutter from the outside, you can also have a mechanical holding function in addition to the distribution of the dripping water.
- the upper substrate layer 16 can be provided with an additional water-permeable cover, for example of a geotextile, in order to prevent contamination of the filter substrate 16, 17 and to increase its service life, even in the case of water bubbling through the overflow area, which possibly entrains sediments.
- an additional water-permeable cover for example of a geotextile
- the structure of the substrate zone itself is composed of at least one or more substrate layers 16, 17.
- the precipitate drain is introduced onto the surface of the upper substrate zone 16 or directly into the substrate zone 16.
- one or more substrate layers 16, 17 are installed one above the other. If a plurality of substrate layers 16, 17 are used, they are coordinated with one another in terms of their cleaning action.
- the organic treatment of the precipitation outflow is ensured and in the second, downstream substrate layer 17, the heavy metal adsorption is ensured.
- the substrate region may in this case be in the form of a single-layer or multi-layered, free-poured or even introduced in an additional carrier element substrate zone.
- a carrier element can reach here both a plastic housing as well as a kind Geonetz / Geogewebe used. It is important here that the transition between two substrate sections takes place in the longitudinal direction conclusively and does not open a bypass.
- the substrate itself or the substrate carrier elements are separated in the precipitation water treatment apparatus 100 by a separating element 18 introduced below the lower substrate zone 17 from the outlet channel 19.
- the separating element 18 has at least one, but generally more, up to a plurality of openings between the substrate zone 17 and the outlet channel 19.
- the separating element may in this case have different geometric shapes. It may be formed for example as a grid or as a perforated plate.
- the separating element 18 is preferably still one or more sides covered with a mesh fabric or separating fleece. As a result, even small substrate particles are retained and not flushed out of the substrate zone.
- the drainage channel 19 can be flowed through completely freely. A slight slope is thus sufficient to divert the filtered water to an end face of the precipitation water treatment device 100, where it can be distributed by piping elsewhere.
- the precipitation water treatment device 100 preferably has a cleaning and inspection channel 23. So it is possible via the inspection channel 23, directly or by means of a suitable viewing device such a camera and flushing device into the drainage channel 19 of the wastewater treatment plant inside look and possibly make a cleaning. The inspection can be performed without having to remove the substrate 16, 17 before.
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Abstract
Description
Die Erfindung betrifft eine Niederschlagswasserbehandlungsvorrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1, insbesondere zur Aufnahme von Oberflächenwasser von Verkehrsflächen.The invention relates to a precipitation water treatment device having the features of the preamble of claim 1, in particular for receiving surface water from traffic areas.
Bei versiegelten Verkehrsflächen auf Liegenschaften ist gesetzlich vorgeschrieben, das anfallende Oberflächenwasser vor Ort versickern zu lassen und eine ungefilterte Einleitung in die Kanalisation zu vermeiden. Dazu müssen große Muldenbereiche mit unverdichteten, wasserdurchlässigen Bodenschichten vorgehalten werden. Die Mulden wiederum müssen durch geeignete Absperrungen gesichert und ständig gepflegt werden; beispielsweise müssen die oberflächennahen Schichten regelmäßig abgeschält werden, da sie aufgrund ihrer Filterwirkung zunehmend kontaminiert werden. All dies führt zu hohen Investitions- und Unterhaltskosten.In the case of sealed traffic areas on properties, it is legally required to allow the surface water to seep into place and to avoid unfiltered discharge into the sewage system. For this purpose, large trough areas must be provided with uncompacted, water-permeable soil layers. The hollows in turn must be secured by suitable barriers and constantly maintained; For example, the near-surface layers must be peeled off regularly because they are increasingly contaminated due to their filtering effect. All this leads to high investment and maintenance costs.
Mit einer gattungsgemäßen Niederschlagswasserbehandlungsvorrichtung, die mit Ihrer Oberseite flächenbündig eingebaut werden kann, wird der Platzbedarf zur Abführung des Niederschlagswassers wesentlich reduziert. Es können damit dauerhaft Niederschlagsabflüsse von stark frequentierten Verkehrsflächen (Kfz-Verkehrsflächen, Start- und Landebahnen von Flughäfen etc.) abgeleitet werden. Eine solche Vorrichtung ermöglicht die Reinigung der hindurchgeführten Niederschlagsabflüsse mittels eines Substrats, durch das beispielsweise mitgeführtes Mineralöl oder Schwermetallionen ausgeschieden, zurückgehalten und/oder abgebaut werden, so dass das gefilterte Wasser anschließend direkt in Boden oder Grundwasserleiter versickert oder einem Vorfluter zugeleitet werden kann.With a generic precipitation water treatment device that can be installed flush with your top, the space required for the discharge of rainwater is significantly reduced. Thus, precipitation discharges from heavily frequented traffic areas (motor vehicle traffic areas, runways of airports, etc.) can be permanently derived. Such a device allows the cleaning of the passed rainfall drains by means of a substrate through which For example, entrained mineral oil or heavy metal ions are eliminated, retained and / or degraded, so that the filtered water can then be seeped directly into soil or aquifers or forwarded to a receiving water.
Die
Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Niederschlagwasserbehandlungsvorrichtung anzugeben, mit der Oberflächenwasserwasser von Verkehrsflächen gefiltert und dann abgeleitet werden kann, wobei eine leichte Reinigung der Vorrichtung ermöglicht sein soll und eine hohe Standzeit des Filtersubstrats gegeben sein soll.The object of the present invention is therefore to provide a precipitation water treatment device, filtered with the surface water from traffic surfaces and then can be derived, with an easy cleaning of the device should be possible and should be given a long service life of the filter substrate.
Diese Aufgabe wird durch eine Niederschlagswasserbehandlungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a precipitation water treatment device having the features of claim 1.
Im Vergleich zu bereits bestehenden Niederschlagswasserbehandlungsvorrichtungen ist die Erfindung dadurch gekennzeichnet, dass auf einfache Wiese zugleich eine Abdeckung des Substrats und zugleich eine Sedimentationsvorrichtung sowie eine Öl-/Leichtflüssigkeitsabtrennung bereit gestellt wird, durch die mitgeführte Schmutzfrachten wie z.B. Schwebstoffe/Sedimente weitgehend abgeschieden werden, so dass weitestgehend nur noch gelöste Schmutzfrachten oder unter Umständen auch Feinstpartikel mit dem Oberflächenwasser in das Filtersubstrat gelangen.Compared to already existing precipitation water treatment devices, the invention is characterized in that at the same time a cover of the substrate and at the same time a sedimentation device and an oil / light liquid separation is provided by the entrained contaminants such. Suspended solids / sediments are largely separated, so that as far as possible only dissolved dirt loads or possibly even ultrafine particles with the surface water get into the filter substrate.
Die erfindungsgemäße Niederschlagswasserbehandlungsvorrichtung ist vorzugsweise optisch an das Design von Linienentwässerungssystemen angelehnt. Auch andere, beispielsweise rechteckige oder runde Formen sind ebenfalls denkbar.The precipitation water treatment device according to the invention is preferably based optically on the design of line drainage systems. Other, for example rectangular or round shapes are also conceivable.
Das Sedimentationsbehältnis kann insbesondere als eine Rinne mit rechteckigem, halbrundem oder aber auch mit anderen Querschnittsformen wie z.B. mit V-förmigen Querschnitt ausgestaltet sein, und kann als einzelnes Element oder aus einer Kombination von Wasserführungskonstruktionen bestehen.The sedimentation container may in particular be designed as a channel having rectangular, semicircular or even other cross-sectional shapes, e.g. be configured with a V-shaped cross-section, and may consist of a single element or a combination of water guide structures.
Sind mehrere kanalähnliche Sedimentationsbehältnisse vorhanden, so können diese einzeln oder in Gruppen von mehreren Systemen kombiniert im oberen Bereich einer Niederschlagswasserbehandlungsvorrichtung positioniert werden.If several channel-like sedimentation containers are present, they can be positioned individually or in groups of several systems combined in the upper part of a precipitation water treatment device.
Erfindungswesentlich ist, dass ein Tauchwandelement vorgesehen ist, das in die Sedimentationbehältnisse eingreift, so dass sich ein Steigkanal ausbildet. Hierdurch werden sedimentierbare, feste Stoffe ebenso wie flotierende, flüssige Stoffe in den Sedimentationsbehältnissen abgeschieden. Das Tauchwandelement kann fest eingebaut sein, ist vorzugweise aber für bessere Wartungs- bzw. Inspektionsvorgänge vorzugsweise abnehmbar.Essential to the invention is that a baffle element is provided, which engages in the sedimentation containers, so that a riser channel is formed. As a result, sedimentable, solid substances as well as floating, liquid substances are deposited in the sedimentation containers. The baffle element may be fixed but is preferably removable for better maintenance or inspection operations.
Vorzugsweise schließt die erfindungsgemäße Niederschlagswasserbehandlungsvorrichtung die Funktion des Schutzes vor Einfrieren der in der Sedimentationsstufe integrierten Tauchwand bzw. des Steigkanals zwischen dem Sedimentationsbehältnis und Tauchwand ein. Dazu sind in der Sedimentationsbehältnis Abströmduchführungen vorgesehen, die mit Filter-/Koaleszenzgewebe überdeckt bzw. ausgefüllt sind. Durch das Filtergewebe wird die Durchflussgeschwindigkeit stark gebremst, so dass das Niederschlagwasser bevorzugt an der Tauchwand vorbei über die Überströmkanten an den Sedimentationsbehältnis n ins Substrat fließt und weniger durch die Abströmdurchführungen in den Sedimentationsbehältnis n.Preferably, the precipitation water treatment apparatus according to the invention includes the function of protecting against freezing in the sedimentation stage integrated immersion wall or the riser between the sedimentation and immersion wall. For this purpose Abströmduchführungen are provided in the sedimentation, which are covered or filled with filter / coalescence. Through the filter fabric, the flow rate is greatly slowed down, so that the precipitation preferably flows past the baffle over the overflow edges of the sedimentation n into the substrate and less through the outflow passages in the sedimentation n.
Jedoch ermöglichen die Abströmdurchführungen eine Funktion der Niederschlagswasserbehandlungsvorrichtung auch dann, wenn der angestaute Niederschlagsabfluss nach Abklingen des Regenereignisses und nach Rückgang der Außentemperatur einfriert. Der Anstauraum in dem Sedimentationsbehältnis kann sich selbstständig über die Abströmvorrichtung entleeren. Dies geschieht jedoch in der Form, dass die Sedimente und auch Öle und Leichtflüssigkeiten welche in der Sedimentationsstufe zurückgehalten wurden nicht mit ausgetragen werden. Gesteuert wird dieser Vorgang über die hydraulische Durchlässigkeit der Abströmvorrichtung sowie über die verbleibende Anstauhöhe in der Sedimentationsstufe. Zwischen der Oberseite des Substrats und den Unterseiten des Sedimentationsbehältnisses bzw. den dort möglicherweise angebrachten Diffusorelementen sollte bevorzugt ein Luftraum bestehen, damit die unten in den Sedimentationsbehältnissen vorzugsweise eingebrachten Abströmdurchführungen nicht selbst einfrieren.However, the discharge ducts allow the precipitation water treatment device to function even if the accumulated precipitation drain freezes after the rainfall subsides and the outside temperature drops. The accumulation space in the sedimentation container can empty itself independently via the outflow device. However, this happens in the form that the sediments and also oils and light liquids which were retained in the sedimentation stage are not discharged. This process is controlled by the hydraulic permeability of the discharge device as well as by the remaining damming height in the sedimentation stage. Between the upper side of the substrate and the lower sides of the sedimentation container or the diffuser elements possibly attached there, an air space should preferably be present so that the outflow feedthroughs preferably introduced below into the sedimentation containers do not themselves freeze.
Die Niederschlagswasserbehandlungsvorrichtung nach der Erfindung kann sowohl einzeln oder auch in Kombination mit weiteren Behandlungsanlagen eingesetzt werden, beispielsweise zu einem Strang kombiniert werden.The precipitation water treatment device according to the invention can be used either individually or in combination with other treatment plants, for example combined to form a strand.
Vorteilhaft ist, wenn die Verbindung der einzelner Behandlungsanlagen miteinander formschlüssig erfolgt und keine Bypässe entstehen lässt, welche den Niederschlagsabfluss ungereinigt bzw. unbehandelt durch das die Niederschlagswasserbehandlungsanlage gelangen lässt. Dies gilt gleichermaßen im Bereich der Anstöße der einzelnen Einlaufbauwerke, Substratschichten, Trennelemente sowie Abflussbereiche.It is advantageous if the connection of the individual treatment plants takes place with one another in a form-fitting manner and does not give rise to any bypasses which allow the precipitation discharge to pass untreated or untreated through the rainwater treatment plant. This applies equally in the Range of impacts of the individual intake structures, substrate layers, separating elements and drainage areas.
Vorzugsweise ist eine Inspektionsöffnung vorgesehen, so dass eine Einsicht in den Ablaufkanal bzw. eine Reinigungsmöglichkeit desselben ermöglicht ist. Diese kann sowohl fest verschlossen werden als auch als unverschlossen als Notüberlauf genutzt werden.Preferably, an inspection opening is provided, so that an insight into the drainage channel or a cleaning possibility of the same is possible. This can be both tightly closed and used as an unlocked emergency overflow.
Die Niederschlagswasserbehandlungsanlage kann darüber hinaus auch in Kombination mit Standard-Linienentwässerungssystemen kombiniert werden, welche nur eine Niederschlagswasserführungs- oder Niederschlagswassersammlungsfunktion aufweisen. In diesem Fall kann das Niederschlagswasser sowohl über die Abwasserbehandlungsanlage und oder über die Linienentwässerungsrinnenkonstruktionen der Sedimentationszone zugeführt werden.In addition, the precipitation water treatment plant can be combined with standard line drainage systems that have only one rainwater runoff or rainwater collection function. In this case, the rainwater can be supplied to the sedimentation zone both via the wastewater treatment plant and or via the line drainage gutter structures.
Weitere vorteilhafte Ausgestaltungen der Erfindungen werden unter Bezug auf das in den Zeichnungen dargestellte Ausführungsbeispiel näher erläutert. Die Figuren zeigen im Einzelnen:
- Fig. 1
- einen Schnitt durch eine Niederschlagswasserbehandlungsanlage;
- Fig. 2
- die Niederschlagswasserbehandlungsanlage in perspektivischer Ansicht von vorn und
- Fig. 3
- ein Sedimentationsbehältnis mit Dififusorelementen in perspektivischer Ansicht.
- Fig. 1
- a section through a rainwater treatment plant;
- Fig. 2
- the precipitation water treatment plant in perspective view from the front and
- Fig. 3
- a sedimentation container with Dififusorelementen in perspective view.
Der durch das Einlaufgitter 13 vorgefilterte und von Grobschmutzstoffen befreite Niederschlagsabfluss gelangt dann in den Sedimentationsbereich, deren Sedimentationsbehältnisse hier beispielhaft durch zwei Sedimentationsrinnen 11 gebildet wird. Hierin wird der vorgereinigte Regenwasserabfluss angestaut. Stoffe, welche bedingt durch ihr Gewicht zur Sedimentation neigen, lagern sich am Boden der Sedimentationsbehältnisse 11 ab. Ferner werden sich in diesem Bereich ebenfalls partikulär an das Sediment angelagerte Schwermetalle abscheiden. Der durch die Sedimentationsrinnen 11 gebildete Sedimentationsbereich ist im oberen Bereich der Niederschlagswasserbehandlungsvorrichtung 100 positioniert. Der Sedimentationsbereich ist dadurch über den Einlaufrost 13 sehr leicht zugänglich und kann ohne weitere Hilfsmittel gereinigt werden.The pre-filtered by the
Außerdem decken die oberhalb einer Substratschicht 16 positionierten Sedimentationsrinnen 11 das Substrat bereits weitgehend ab. In der Mitte zwischen den Sedimentationsrinnen 11 wird die Lücke in der Abdeckung durch ein Tauchwandelement 20 vervollständigt. Damit ist das Substrat 16 auch vor schwallartig einlaufendem Wasser geschützt.In addition, the
Das Tauchwandelement 20 greift mit einem Profilschenkel 21 in die Sedimentationsrinnen 11. Bei dem in
Die Niederschlagsabflüsse gelangen so in bereits vorgereinigter Form den Steigkanal 14 und fließen über die Überlaufkante der Sedimentationsrinne in den inneren Überlaufbereich, wo sie in die Substratschichten 16, 17 einsickern.The precipitation outflows thus reach the
Über die Überströmkante abfließendes Wasser benetzt, sofern es nicht schwallartig über die Überströmkante schwappt, nur die Unterseite der Sedimentationsrinne und tropft an deren tiefstem Punkt ab. Damit würde das Substrat 16 aber immer nur entlang von zwei bzw. einer - je nach Zulauf aus der angeschlossenen Fläche - Linien unterhalb der Mitten der Sedimentationsrinnen 11 beaufschlagt. Um eine flächigere Ausbringung des über den Steigkanal 14 ablaufenden Niederschlagsabflusses zu gewährleisten und damit das Substrat flächig und nicht nur punktuell mit Niederschlagswasser zu beaufschlagen, sind bevorzugt Diffusorelemente 13 über die Länge der Sedimentationsrinnen 11 angeordnet, wie insbesondere
Die Anordnung der Diffusorelemente 13 entlang der Sedimentationsrinne ist in
Die obere Substratschicht 16 kann mit einer zusätzlichen wasserdurchlässigen Abdeckung, beispielsweise aus einem Geotextil, versehen sind, um auch bei schwallartig durch den Überlaufbereich fließendem Wasser, das möglicherweise Sedimente mitreißt, die Verunreinigung des Filtersubstrats 16, 17 zu verhindern und dessen Standzeit zu erhöhen.The
Der Aufbau der Substratzone selbst setzt sich aus mindestens einer oder mehreren Substratschichten 16, 17 zusammen. Der Niederschlagsabfluss wird auf die Oberfläche der oberen Substratzone 16 oder direkt in die Substratzone 16 eingetragen. Je nach Anforderungen werden eine oder mehrere Substratschichten 16, 17 übereinander eingebaut. Kommen mehrere Substratschichten 16, 17 zum Einsatz, so sind diese in ihrer Reinigungswirkung aufeinander abgestimmt.The structure of the substrate zone itself is composed of at least one or more substrate layers 16, 17. The precipitate drain is introduced onto the surface of the
Vorzugsweise wird in der ersten Substratschicht 16 die organische Behandlung des Niederschlagsabflusses sichergestellt und in der zweiten, nachgelagerten Substratschicht 17 wird die Schwermetalladsorption sichergestellt.Preferably, in the
Der Substratbereich kann hierbei sowohl als einlagige oder mehrlagige, freigeschüttete oder auch in einem zusätzlichen Trägerelement eingebrachte Substratzone darstellen. Als Trägerelement kann hier sowohl ein Kunststoffgehäuse als auch eine Art Geonetz/Geogewebe zum Einsatz gelangen. Wichtig hierbei ist es, dass der Übergang zwischen zwei Substratabschnitte in Längsrichtung schlüssig erfolgt und keinen Bypass eröffnet.The substrate region may in this case be in the form of a single-layer or multi-layered, free-poured or even introduced in an additional carrier element substrate zone. As a carrier element can reach here both a plastic housing as well as a kind Geonetz / Geogewebe used. It is important here that the transition between two substrate sections takes place in the longitudinal direction conclusively and does not open a bypass.
Das Substrat selbst bzw. die Substratträgerelemente werden in der Niederschlagswasserbehandlungsvorrichtung 100 durch ein unterhalb der unteren Substratzone 17 eingebrachtes Trennelement 18 vom Ablaufkanal 19 getrennt. Das Trennelement 18 weist mindestens eine, in der Regel aber mehrere bis zu einer Vielzahl von Öffnungen zwischen Substratzone 17 und Ablaufkanal 19 auf. Das Trennelement kann hierbei unterschiedliche geometrische Formen aufweisen. Es kann beispielsweise als Gitter oder als Lochblech ausgebildet sein.The substrate itself or the substrate carrier elements are separated in the precipitation
Je nach Wahl des Trennelements 18 und dessen Ausführung wird das Trennelement 18 vorzugsweise noch ein- oder mehrseitig mit einem Gittergewebe oder Trennvlies bedeckt. Hierdurch werden auch kleine Substratpartikel zurückgehalten und nicht aus der Substratzone ausgespült.Depending on the choice of the separating
Der Ablaufkanal 19 ist aufgrund der Anordnung des Trennelements 18 darüber völlig frei durchströmbar. Ein geringes Gefälle reicht somit aus, um das gefilterte Wasser zu einer Stirnseite der Niederschlagswasserbehandlungsvorrichtung 100 abzuleiten, wo es über Rohrleitungen anderweitig verteilt werden kann.Due to the arrangement of the separating
Die Niederschlagswasserbehandlungsvorrichtung 100 weist vorzugsweise einen Reinigungs- und Inspektionskanal 23 auf. So ist es über den Inspektionskanal 23 möglich, direkt oder mittels eines geeigneten Sichtgeräts wie einer Kamera- und Spüleinrichtung in den Ablaufkanal 19 der Abwasserbehandlungsanlage hineinzusehen und gegebenenfalls eine Reinigung vorzunehmen. Die Inspektion kann durchgeführt werden, ohne das Substrat 16, 17 vorher entnehmen zu müssen.The precipitation
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DE102012103954 | 2012-05-04 |
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EP13165922.9A Withdrawn EP2660400A3 (en) | 2012-05-04 | 2013-04-30 | Device for collecting and filtering rain water on traffic surfaces |
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Cited By (7)
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EP2871296A1 (en) * | 2013-11-12 | 2015-05-13 | HAURATON GmbH & Co. KG | Filter substrate trough element and filter substrate trough system |
EP2918742A1 (en) * | 2014-03-13 | 2015-09-16 | BIRCO GmbH | Drainage element |
CN105297873A (en) * | 2015-09-25 | 2016-02-03 | 芜湖弛科排水材料贸易有限公司 | Combined inspection well of finished drainage ditch |
DE102014113501A1 (en) * | 2014-09-18 | 2016-03-24 | Birco Gmbh | Drainage channel element |
US20160369491A1 (en) * | 2016-09-05 | 2016-12-22 | Shahriar Eftekharzadeh | Two Level Stormwater Channel |
EP3415697A3 (en) * | 2017-05-22 | 2019-03-13 | BIRCO GmbH | Drainage device, an insert for a drainage device and a drainage system |
EP3705654A1 (en) * | 2019-03-06 | 2020-09-09 | BIRCO GmbH | Gutter element |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105464198A (en) * | 2016-01-06 | 2016-04-06 | 朱春生 | Floor drain |
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- 2013-04-30 EP EP13165922.9A patent/EP2660400A3/en not_active Withdrawn
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EP2871296A1 (en) * | 2013-11-12 | 2015-05-13 | HAURATON GmbH & Co. KG | Filter substrate trough element and filter substrate trough system |
EP2918742A1 (en) * | 2014-03-13 | 2015-09-16 | BIRCO GmbH | Drainage element |
DE102014113501A1 (en) * | 2014-09-18 | 2016-03-24 | Birco Gmbh | Drainage channel element |
DE102014113501B4 (en) * | 2014-09-18 | 2019-06-13 | Birco Gmbh | Drainage channel element |
CN105297873A (en) * | 2015-09-25 | 2016-02-03 | 芜湖弛科排水材料贸易有限公司 | Combined inspection well of finished drainage ditch |
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EP3705654A1 (en) * | 2019-03-06 | 2020-09-09 | BIRCO GmbH | Gutter element |
Also Published As
Publication number | Publication date |
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EP2660400A3 (en) | 2014-01-01 |
DE202013011915U1 (en) | 2014-10-07 |
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