WO2013078512A1 - Piège à sédiments - Google Patents

Piège à sédiments Download PDF

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Publication number
WO2013078512A1
WO2013078512A1 PCT/AU2012/001466 AU2012001466W WO2013078512A1 WO 2013078512 A1 WO2013078512 A1 WO 2013078512A1 AU 2012001466 W AU2012001466 W AU 2012001466W WO 2013078512 A1 WO2013078512 A1 WO 2013078512A1
Authority
WO
WIPO (PCT)
Prior art keywords
deflector
deflectors
pit
sediment
uppermost
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.)
Ceased
Application number
PCT/AU2012/001466
Other languages
English (en)
Inventor
Rhys Lathlain Eddy
David Thomas Mccarthy
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.)
Envirostream Solutions Pty Ltd
Original Assignee
Envirostream Solutions Pty Ltd
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
Priority claimed from AU2011905032A external-priority patent/AU2011905032A0/en
Application filed by Envirostream Solutions Pty Ltd filed Critical Envirostream Solutions Pty Ltd
Priority to CN201280064640.8A priority Critical patent/CN104105833B/zh
Priority to EP12853624.0A priority patent/EP2785925A4/fr
Priority to US14/362,062 priority patent/US20140311957A1/en
Priority to AU2012344734A priority patent/AU2012344734A1/en
Publication of WO2013078512A1 publication Critical patent/WO2013078512A1/fr
Priority to IL232908A priority patent/IL232908A0/en
Anticipated expiration legal-status Critical
Priority to AU2017221842A priority patent/AU2017221842B2/en
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • 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
    • B01D21/0045—Plurality of essentially parallel plates
    • 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
    • B01D21/0066—Settling tanks provided with contact surfaces, e.g. baffles, particles with a meandering flow pattern of liquid or solid particles
    • 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B01D21/2483—Means or provisions for manually removing the sediments
    • 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
    • E03F5/0403—Gullies for use in roads or pavements with a sediment trap
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

Definitions

  • the present invention relates to an apparatus for settling sediment from a liquid collected in a drainage pit. More particularly, but not exclusively, the invention relates to a sediment trap.
  • Sediment in stormwater runoff can clog collection systems and pollute waterways in which the runoff flows into. It is desirable to filter sediment from stormwater runoff to reduce the chances of collection systems becoming clogged and to improve the quality of water flowing into waterways. It is also desirable to provide such filtration systems that are simple and cheap to manufacture and can be easily serviced.
  • Examples of the invention seek to solve, or at least ameliorate, one or more disadvantages o previous sediment traps.
  • an apparatus for settling sediment from a liquid collected in a drainage pit including a plurality of spaced apart deflectors which are configured to be inclined in use, the deflectors comprising: an uppermost deflector having an aperture formed in an upper portion thereof so that liquid pooling in the pit can flow through the aperture, a second deflector arranged in use to be at least partially below the uppermost deflector, the second deflector opening into a sediment reservoir at a lower end thereof so that liquid flowing along the second deflector can settle in the sediment reservoir, ' and a third deflector extending upwardly from the sediment reservoir, the third deflector having an aperture formed in an upper portion thereof so that liquid pooling in the sediment reservoir can flow along the third deflector and through the aperture to exit the pit.
  • each of the deflectors are formed of a plurality of plate-like members which are arranged in an end-to-end configuration.
  • An outer surface of the deflectors can be generally in the form of a pyramid.
  • the outer surface is in the form of a truncated pyramid.
  • the uppermost and third deflectors each have a centrally disposed aperture through which the liquid can flow.
  • An initial sediment reservoir can be defined around a lower edge of the uppermost deflector.
  • the uppermost deflector can have upturned sides which are configured to be received against and generally parallel to walls of the pit.
  • the uppermost deflector spans across the pit.
  • the pit has a square cross section.
  • the deflectors are formed from sheet metal or plastic.
  • the apparatus further comprises supports to support the deflectors from each other.
  • each of the deflectors are configured to be removably stackable from each other.
  • an assembly comprising an apparatus of the above described type, the apparatus being installed in a drainage pit.
  • Figure 1 is a perspective view of apparatus for settling, sediment from a liquid collected in a drainage pit of one embodiment of the invention
  • Figure 2 is a perspective view of a lower deflector for use with the apparatus
  • Figure 3 is a perspective view of the apparatus installed in a drainage pit; and Figure 4 is a sectioned side view of the apparatus.
  • the apparatus 10 is in the form of a sediment trap which is configured to be received in a rectangular stormwater drainage pit and includes a plurality of spaced apart deflectors which are configured to be inclined in use.
  • the velocity of a liquid flowing upwardly over an inclined plate generally reduces, allowing sediment in the liquid to settle and fall along the plate so as to be collected at a lower portion of the plate.
  • Directing the flow of a liquid in a stormwater drainage pit over inclined plates allows sediment to be removed from the liquid, thereby increasing the quality of liquid flowing from the stormwater drainage pit.
  • the deflectors include an uppermost deflector 12, a second deflector 14 and a third deflector 16 which are arranged so as to be overlapping and parallel.
  • the uppermost deflector 12 has an aperture 18 formed in an upper portion thereof so that liquid pooling in the pit can flow upward along the first deflector 12 and through the aperture 1 8. Liquid flowing over an upper edge of first deflector 14 and through the aperture 18 will fall onto the second deflector 14 which is arranged in use to be at least partially below the uppermost deflector 12 so that the liquid will flow downwardly along the second deflector 14.
  • the second deflector 14 opens into a sediment reservoir 20 which is disposed at a lower end of the second deflector 14 so that liquid flowing along the second deflector 14 can settle in the sediment reservoir 20.
  • the third deflector 16 extends upwardly from the sediment reservoir 20 and has an aperture 22 formed in an upper portion thereof so that liquid flowing from the sediment reservoir can flow upwardly along the third deflector 16 and through the aperture 22 to exit the pit.
  • the liquid flowing through the aperture 22 will exit the pit through conventional means provided in the pit.
  • Each of the deflectors 12 f 14, 16 are formed of a pluralit of thin plate-like members which are arranged in an end-to-end configuration to form a single continuous deflector.
  • the stormwater drainage pit has a square cross section and an outermost edge of the deflectors is correspondingly shaped and sized to fit conventional pits.
  • An outer surface of each of the deflectors 12, 14, 16 is generally pyramid shaped and, in the embodiment shown, in the form of a truncated pyramid.
  • the uppermost 12 and third deflectors 16 each have a centrally disposed aperture through which the liquid can flow.
  • An upper portion of the second deflector 14 is generally flat.
  • the uppermost deflector 12 has upturned sides 24 which are configured to be received against and generally parallel to walls of the pit.
  • the size of the upturned sides 24 is such that a lip 26 which is formed on an upper edge of the upturned sides 24 is disposed higher than a central portion of the uppermost deflector 12.
  • the uppermost deflector 12 spans across the pit and the lip 26 is configured to be in contact with side walls of a stormwater drainage pit so that a majority of the water collected in the drainage pit will pool on top of the uppermost deflector and flow through the aperture 18.
  • An initial sediment reservoir 28 is defined around a lower edge of the uppermost deflector 12 to collect sediment that settles over the uppermost deflector 12.
  • FIG. 2 illustrates the third deflector 14 used in apparatus 10.
  • the third deflector 14 has radially outwardly extending supports 30 which are disposed along ridges formed on the outer surface of the deflector 14.
  • the supports 30 are configured to support the second and third deflectors 14, 16 from each other.
  • the second deflector 14 has supports (not shown) to support the first and second deflectors 12, 14 from each other.
  • the supports 30 may be in the form of fins or stilts used to prop one deflector from another to maintain a desired separation between them.
  • the third deflector 14 includes a downwardly extending member 32 and an outer flange 34 extending around a lower perimeter thereof. In use, the downwardly extending member 32 and the outer flange 34, in combination with a side wall of the stormwater drainage pit, define the sediment reservoir 20.
  • the apparatus 10 is sized so as to fit within a stormwater drainage pit 36 in a close fitting manner so that the upturned sides 24 are received against walls of the pit 36, In use sediment will settle in the initial sediment reservoir 28 and the sediment reservoir 20 and the apparatus 10 will require cleaning to remove this sediment.
  • Each of the deflectors 12, 14, 16 are removably stackable from each other and once a lid of the pit 36 has been removed, each of the deflectors can be removed, either separately or as an assembly, and the built-up sediment easily scraped, brushed or hosed off Once the " deflectors have been cleaned, they can be replaced in the pit 36 for further use.
  • the deflectors 12, 14, 16 are formed by folding sheets of material, which in the described embodiment is stainless steel, which are then joined using convention joining processes such as welding for example. It will be appreciated that other suitable materials may be used to form the deflectors.
  • the deflectors may be formed of a plastic material such as high density polyethylene (HOPE) and formed using conventional moulding processes such as vacuum forming.
  • HOPE high density polyethylene
  • the third deflector 16 is formed of generally triangular sheets having upturned sides. The upturned sides of each sheet are joined to those of the other sheets to form the supports 30.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • 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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

L'invention porte sur un appareil pour la sédimentation de sédiments à partir d'un liquide collecté dans un puits de drainage, lequel appareil comprend une pluralité de déflecteurs mutuellement espacés qui sont configurés de façon à être inclinés lors de l'utilisation, les déflecteurs comprenant : un déflecteur supérieur ayant une ouverture formée dans une partie supérieure de celui-ci de telle sorte qu'un liquide accumulé dans le puits peut s'écouler à travers l'ouverture, un deuxième déflecteur disposé, lors de l'utilisation, de façon à se trouver au moins partiellement au-dessous du déflecteur supérieur, le deuxième déflecteur s'ouvrant dans un réservoir de sédiments à une extrémité inférieure de celui-ci, de telle sorte qu'un liquide s'écoulant le long du deuxième déflecteur peut se sédimenter dans le réservoir de sédiments, et un troisième déflecteur s'étendant vers le haut à partir du réservoir de sédiments, le troisième déflecteur ayant une ouverture formée dans une partie supérieure de celui-ci, de telle sorte qu'un liquide accumulé dans le réservoir de sédiments peut s'écouler le long du troisième déflecteur et à travers l'ouverture de façon à sortir du puits.
PCT/AU2012/001466 2011-12-02 2012-11-30 Piège à sédiments Ceased WO2013078512A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201280064640.8A CN104105833B (zh) 2011-12-02 2012-11-30 沉淀物捕集器
EP12853624.0A EP2785925A4 (fr) 2011-12-02 2012-11-30 Piège à sédiments
US14/362,062 US20140311957A1 (en) 2011-12-02 2012-11-30 Sediment trap
AU2012344734A AU2012344734A1 (en) 2011-12-02 2012-11-30 Sediment trap
IL232908A IL232908A0 (en) 2011-12-02 2014-06-01 Sediment trap
AU2017221842A AU2017221842B2 (en) 2011-12-02 2017-08-31 Sediment trap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2011905032A AU2011905032A0 (en) 2011-12-02 Sediment Trap
AU2011905032 2011-12-02

Publications (1)

Publication Number Publication Date
WO2013078512A1 true WO2013078512A1 (fr) 2013-06-06

Family

ID=48534536

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2012/001466 Ceased WO2013078512A1 (fr) 2011-12-02 2012-11-30 Piège à sédiments

Country Status (6)

Country Link
US (1) US20140311957A1 (fr)
EP (1) EP2785925A4 (fr)
CN (1) CN104105833B (fr)
AU (2) AU2012344734A1 (fr)
IL (1) IL232908A0 (fr)
WO (1) WO2013078512A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862033A (en) * 1969-05-22 1975-01-21 Separa Brno Inzenyrska Kancela Method for sedimentation of solid impurities from liquids
US4299703A (en) * 1979-05-23 1981-11-10 Alsthom-Atlantique Separator for separating a mixture of two liquids
US5840198A (en) * 1994-07-29 1998-11-24 International Fluid Separation Pty Ltd Separation apparatus and method

Family Cites Families (19)

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US653012A (en) * 1899-12-20 1900-07-03 Charles Herschel Koyl Apparatus for purifying water.
US1274814A (en) * 1918-03-16 1918-08-06 Odin A Sundness Dewaterer and classifier.
USRE22814E (en) * 1940-07-30 1946-12-03 Apparatus for continuous
US2693880A (en) * 1952-01-21 1954-11-09 Otto B Schoenfeld Emulsion separator
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GB2170419A (en) * 1985-01-31 1986-08-06 Fluid Treatment Pte Ltd Sedimentation apparatus
DE3818579A1 (de) * 1988-06-01 1989-12-07 Passavant Werke Abscheider fuer schwimm- und/oder sinkstoffe
US4897206A (en) * 1988-11-30 1990-01-30 Facet Quantek, Inc. Bidirectionally corrugated plate separator for fluid mixtures
US4921609A (en) * 1989-06-26 1990-05-01 Fromson Robert E Circular lamella clarifier
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US6017462A (en) * 1997-12-17 2000-01-25 Rains; Michael D. Plaster trapping sink liner
CN2382768Y (zh) * 1999-08-05 2000-06-14 刘壮 A形同向流斜板
CN2441794Y (zh) * 2000-09-05 2001-08-08 胡志忠 一体化污水处理器
JP4608366B2 (ja) * 2005-05-23 2011-01-12 マテラス青梅工業株式会社 暗渠排水構造及び雨水の浸透処理方法
JP4618737B2 (ja) * 2007-08-02 2011-01-26 ケイコン株式会社 路面排水処理槽
CN201080651Y (zh) * 2007-09-17 2008-07-02 覃佩文 道路排水口
CN201125410Y (zh) * 2007-10-29 2008-10-01 姜全德 自净式水箱
JP2010201324A (ja) * 2009-03-03 2010-09-16 Sumitomo Metal Mining Co Ltd シックナーのフィードウェル
CN202273311U (zh) * 2011-01-13 2012-06-13 王丹 一种道路防臭排水槽设施

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862033A (en) * 1969-05-22 1975-01-21 Separa Brno Inzenyrska Kancela Method for sedimentation of solid impurities from liquids
US4299703A (en) * 1979-05-23 1981-11-10 Alsthom-Atlantique Separator for separating a mixture of two liquids
US5840198A (en) * 1994-07-29 1998-11-24 International Fluid Separation Pty Ltd Separation apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2785925A4 *

Also Published As

Publication number Publication date
CN104105833A (zh) 2014-10-15
US20140311957A1 (en) 2014-10-23
CN104105833B (zh) 2016-08-24
IL232908A0 (en) 2014-07-31
AU2017221842A1 (en) 2017-09-21
AU2017221842B2 (en) 2019-01-17
EP2785925A4 (fr) 2015-11-11
AU2012344734A1 (en) 2014-07-24
EP2785925A1 (fr) 2014-10-08

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