EP1741845A2 - Méthode et dispositif pour nettoyer de l'eau pluviale - Google Patents

Méthode et dispositif pour nettoyer de l'eau pluviale Download PDF

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Publication number
EP1741845A2
EP1741845A2 EP20060012190 EP06012190A EP1741845A2 EP 1741845 A2 EP1741845 A2 EP 1741845A2 EP 20060012190 EP20060012190 EP 20060012190 EP 06012190 A EP06012190 A EP 06012190A EP 1741845 A2 EP1741845 A2 EP 1741845A2
Authority
EP
European Patent Office
Prior art keywords
partial flow
collecting
flush
cleaning
volume
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.)
Withdrawn
Application number
EP20060012190
Other languages
German (de)
English (en)
Inventor
Martin Armbruster
Giorgio Morandini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HYDROGRAV GMBH
Original Assignee
hydrograv GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by hydrograv GmbH filed Critical hydrograv GmbH
Publication of EP1741845A2 publication Critical patent/EP1741845A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F2201/00—Details, devices or methods not otherwise provided for
    • E03F2201/10—Dividing the first rain flush out of the stormwater flow

Definitions

  • the invention relates to a method and a device for cleaning rainwater according to the preamble of claims 1 and 2.
  • End of Pipe treatment plants are dimensioned for the FF event, ie the first highly effluent water discharged is collected in a separate container.
  • a plant which is dimensioned for example for one hectare of road surface, needs a FF collecting volume of 40- 60m 3 .
  • An object of the present invention is therefore to provide, in particular for the waste water of traffic areas and for large roof areas, a method and a device for cleaning rainwater, which for the linear collection and the subsequent transfer to the interface with nature and / or the Cleaning End ofPipe significantly reduces mixing of heavily soiled first-flush water with significantly less contaminated second-flush water before cleaning.
  • this method and by this device for rain events which are not to be regarded as exceptionally strong, the majority of the wastewater incurred, ie both the FF and at least the majority of the SF.
  • the method according to the invention and the device according to the invention make it possible to largely separate the two wastewater qualities hydraulically by means of a separate derivation of the FF volume flow and the SF flow rate, which is considerably larger for large rain events.
  • the heavily loaded FF wastewater can be in at least one line z. B. with a small cross-section and / or throttled drain directly or throttled by other means a suitable cleaning device to be supplied.
  • the SF water on the other hand, it can be treated independently, eg filtered, or end-of-pipe z. B. derived on a leaching area or passed into a body of water.
  • the heavily polluted amount of water compared to the unthrottled volume in substantially lower flow rate of further treatment can be fed.
  • the throttled pipe serves as a temporary storage space and the collected water at the beginning of the rain event still at high speed and thus high drag force flows.
  • the method and apparatus may be integrated into existing drainage piping systems.
  • First-flush collection volume therefore primarily means that only small amounts of water flow out of it per time or, if appropriate, it ends at the end of line sections or at the end of the line into a collecting volume from which smaller quantities flow out per time.
  • the design of the inlet allows an inflow amount that is significantly greater than the maximum possible outflow. The latter can be located next to the existing main line or in a separate small-caliber pipe adjacent to the main pipe or even inside the main pipe.
  • a road 1 in Figure 1 is denoted by reference numeral 3 to be dehydrated road surface.
  • a drainage channel 5 which may be constructed, for example, of stone blocks, visible.
  • inlet chutes 7 are arranged in the drainage channel.
  • a sewer system 9 is shown in broken lines.
  • the drainage channel 5 can be arranged in the region of the green strip.
  • the cross-section through one of the shafts 7 according to FIG. 2 shows that the sewage system 9 in the first exemplary embodiment comprises two separate lines, namely a small-volume channel 18 and the main channel 16.
  • the small quantity channel 18 is connected to the inlet shaft 7 by a small quantity line 22 running here by way of example and preferably inclined to the horizontal.
  • the small quantity line 22 opens at a lower point of the inlet shaft 7 in this.
  • the shaft bottom 24 is also arranged inclined to the horizontal.
  • a main drain line 20 opens into the wall 21 of the inlet shaft 7.
  • the main drain line 20 has in the first embodiment shown in FIG 2 a much larger diameter than the small quantity line 22.
  • a grate 14 may be used, which completely spans the cross section of the inlet shaft 7.
  • the grate 14 may be formed as a grid or as a perforated plate suitable permeability and serves to prevent clogging of the small quantity line 22.
  • the cover 12 preferably extends over the entire shaft cross-section.
  • the cross section of the small quantity line 22 is dimensioned similar to that of the main drain line 20.
  • a throttle or a valve is placed in order to reduce the temporal outflow quantity.
  • the small quantity line 22 serves as a temporary storage space. Between the small quantity line 22 and the space 7 'above the grate 14, a vent line 28 may be arranged. The vent line 28 may also open into the space 7, to the surface or to any other suitable location.
  • a sewer pipe 60 which is subdivided by an intermediate wall into a main channel 16 and a small quantity channel 18, replaces the main channel 16 and the small volume channel 18.
  • the main channel 16 is connected via the Hauptabfiusstechnisch 20 and the small quantity channel 18 via the small quantity line 22 in connection with the shaft 7.
  • an additional pipe namely a small amount of pipe 18 may be inserted into the large pipe 16 ( Figure 6).
  • Figure 3 shows a schematic cross section through a separation control shaft 30, in which the main channel 16 and the small quantity channel 18 open, if the water discharged through the main channel 16 and the small quantity channel 18 does not directly a wastewater treatment plant or a body of water or infiltration or process water
  • an optional throttle, orifice or a slider 38 the inflow from the small quantity channel 18 into the inspection shaft 30 can also be adjusted. This makes it possible to dimension the volume of the inspection shaft 30 relatively small and to use the volume of the small quantity channel 18 at least temporarily as storage space. Without throttling additional storage space must be provided.
  • the small quantity channel 18 opens directly into the outer annular space 44, also called first-flush space. For this a Schmutnvassertechnisch 32 leads to the wastewater treatment plant.
  • a cleaning device according to FIG. 3 for the FF can be provided within the shaft 30.
  • a connection to an ARA is then not necessary.
  • a backflow flap 34 may be attached to the dirty water line 32 in order to retain on the one hand channel odors from the combined sewage system and to prevent backflow from the sewage system into the inspection shaft 30.
  • the main channel 16 with relatively clean SF water flows directly through a filter 40 into a storage space 42. In this impurities are retained by the filter 40 and can with the FF water or separately be supplied to the sewer.
  • the SF water passing through the filter 40 flows through an outlet here, for example, to a sipper girdle 36 from which infiltration into the ground or discharge into a body of water takes place.
  • the small quantity channel 18 lies directly below the drainage channel 5, in which, as an alternative to one or more latticed channels, a slot channel inlet 54 can be formed. It is also conceivable to cover with gravel.
  • the drainage channel is preferably formed asymmetrically by on the side of the road surface 3 a to the horizontal against the Schlitzrinneneinlauf 54 inclined portion 55 is present and on the side facing away from the lane 3 side of Schlitzrinneneinlauf 54 a substantially horizontally extending portion 57 is present.
  • the surface of the horizontally extending portion 57 is an amount h 2 below the Kote of the road at its lowest point.
  • FIG. 4 a shows a further embodiment of the embodiment according to FIG. 4.
  • the main channel 16 is arranged. This is above a correspondingly sized slot-shaped opening 59 with the surface in combination. Also in this embodiment may laterally additionally a deeper-laid portion 52 may be formed, in which a direct infiltration into the ground is possible if too much SF-water accumulates and can not be absorbed by the main line 16.
  • FIG. 7 shows the cross-section of a channel-shaped tube in tube solution, in which the rain wastewater flows in via the perforated cover 64a of the channel 62 and then flows first through the cover 64b and filter 66a to finally reach the small-volume channel 18. If the water from the small quantity channel 18 back, the following volume flow pours through filter 66b in the main channel 16.
  • This device can also without the Means for cleaning 66a and 66b are performed and instead lead to a system with FF and SF cleaning.
  • the operation of the system is explained in more detail below.
  • the impurities which flow off the surface of the road, a runway or, if necessary, a roof are drained off the runoff water.
  • For larger roofs or roofs are double gutters - a small next to a larger - arranged.
  • the first would deduce FF and the second only the SF, which can be initiated, for example, after cleaning in the process water.
  • the heavily loaded by impurities FF can be completely swallowed and discharged from the small volume channel 18.
  • the contaminated FF water also passes either directly into a water purification system or into a control shaft 30 according to FIG.
  • cleaning agents such.
  • filter cloths or filter fleeces to install within the channel 18 and / or channel 16, which subject the resulting streams after passage of the inlet shaft 7 already on their flow path through channel 18 and / or 16 a cleaning.
  • the purified FF can flow filtered from small-volume hose channel 18 in channel 16, the contaminants are retained in small-volume channel 18.
  • the channel tube can be fixed so that he, z. B. at the inlet ducts 7 or elsewhere pulled out of the line and can be replaced by a clean tube.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
EP20060012190 2005-06-13 2006-06-13 Méthode et dispositif pour nettoyer de l'eau pluviale Withdrawn EP1741845A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH9982005 2005-06-13

Publications (1)

Publication Number Publication Date
EP1741845A2 true EP1741845A2 (fr) 2007-01-10

Family

ID=37460089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060012190 Withdrawn EP1741845A2 (fr) 2005-06-13 2006-06-13 Méthode et dispositif pour nettoyer de l'eau pluviale

Country Status (1)

Country Link
EP (1) EP1741845A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000451C2 (nl) * 2007-01-23 2008-07-24 Konink Bam Groep Nv Werkwijze en systeem voor het bergen van hemelwater.
ITBZ20110031A1 (it) * 2011-06-09 2012-12-10 Santorum Luca Ing Impianto a gravità per lo smaltimento e scarico di acque di fognatura.
EP2871296A1 (fr) * 2013-11-12 2015-05-13 HAURATON GmbH & Co. KG Élément de rainure de substrat de filtration et système de rainure de substrat de filtration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000451C2 (nl) * 2007-01-23 2008-07-24 Konink Bam Groep Nv Werkwijze en systeem voor het bergen van hemelwater.
ITBZ20110031A1 (it) * 2011-06-09 2012-12-10 Santorum Luca Ing Impianto a gravità per lo smaltimento e scarico di acque di fognatura.
EP2871296A1 (fr) * 2013-11-12 2015-05-13 HAURATON GmbH & Co. KG Élément de rainure de substrat de filtration et système de rainure de substrat de filtration

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