EP1807574A1 - Separateur - Google Patents

Separateur

Info

Publication number
EP1807574A1
EP1807574A1 EP05791374A EP05791374A EP1807574A1 EP 1807574 A1 EP1807574 A1 EP 1807574A1 EP 05791374 A EP05791374 A EP 05791374A EP 05791374 A EP05791374 A EP 05791374A EP 1807574 A1 EP1807574 A1 EP 1807574A1
Authority
EP
European Patent Office
Prior art keywords
filter
separator
tank
pipe
separator according
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Withdrawn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
EP05791374A
Other languages
German (de)
English (en)
Inventor
Damone Armstrong
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.)
TANKS AND CONTAINERS GROUP LIMITED
Original Assignee
Invert Group 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 GBGB0421320.3A external-priority patent/GB0421320D0/en
Application filed by Invert Group Ltd filed Critical Invert Group Ltd
Publication of EP1807574A1 publication Critical patent/EP1807574A1/fr
Withdrawn legal-status Critical Current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
    • E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer
    • 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
    • B01D17/04—Breaking emulsions
    • B01D17/045—Breaking emulsions with coalescers
    • 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
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water

Definitions

  • This invention relates to separators for capturing oil and silt entrained with surface water, and in particular to separators used for collecting run-off surface water from hard-standings such as car parks, fuel station forecourts, airport runways, roadways, etc .
  • Separators have been developed and are in use in hard-standing areas, such as car parks. These separators include a tank, and mounted inside the tank a filter. These separators include a filter and are designed to capture all surface water run-off when rainfall is up to 5mm / hour, but in storm conditions to switch to a by-pass mode whereby no water passes through the filter. In use, these tanks are buried in the ground. Surface water run-off enters the tank where oil/ fuel fraction migrates to the top of the liquid in the tank and small particles suspended in the liquid fall out of suspension to the bottom of the tank. An outlet from the tank is connected to an outfall to a main surface water drain The path between the tank and the outfall includes the filter Any water exiting the tank must pass through the filter before entering the sewage system
  • the type of filter commonly used is a coalescent filter
  • silt a factor which must be taken into account when designing a separator for collecting oil/ fuel entrained with surface water is that small particles are held in suspension with the surface water TIx ese small particles will be referred to herein as silt
  • the coalescent filter consists of a sleeve of filter material which is mounted on the outer surface of a perforated tube.
  • the downstream end of the perforated tube connects directly or indirectly to a sewage outfall Any oil/fuel not separated from the water must pass through the filter in order to reach the sewage outlet.
  • Figure 1 is a cross-sectional elevation of a separator according to one embodiment of the invention
  • Figure 2 is a plan view of the separator illustrated in Figure 1
  • Figure 2a is an exploded view of the lower part of the filter housing of the separator illustrated in Figures 1 and 2,
  • Figure 3 is a cross-secttonal elevation of a separator according to a second embodiment of the invention
  • Figure 4 is a plan view of the separator illustrated in Figure 3
  • Figure 4a is an exploded view of the lower part of tihe filter housing of the separator illustrated in Figures 3 and 4,
  • Figure 5 is a schematic representation of the inside of a separator accoiding to one aspect of the invention
  • Figure 6 illustrates the means ot fixing an inner pipe m a filter housing
  • Figure 7 is a plan view of a separator according to a third embodiment of the invention.
  • Figure 8 is an end cross-sectional elevation of the separator illustrated m Figure 7,
  • Figure 9 is a side cross-sectional elevation of the separator illustrated in Figures 7 and 8,
  • Figure 10 is a side cross-sectional elevation of a fourth embodiment of the invention.
  • Figure 11 is a side cross-sectional elevation of a separatoi according to a fifth embodiment of the invention.
  • Figure 12 is a side cross-sectional elevation of a separator according to a six embodiment of the invention.
  • a separator 1 is comprised of a tank 2, cylindrical in cross- section, having a domed base 3, and a lid 4
  • the lid 4 mounts a filter housing 5 in which is mounted a filter unit 6
  • the filter unit 6 includes a pipe 7, a lower region 8 of which is perforated, a sleeve 9 of filter material, and a collar 10
  • the uppei end 12 of the pipe 7 is fixed to a collar 22, which is removably attachable to the neck 23 of the filtei housing 5
  • the lower end 11 of the pipe 7 is held in the filter housing by a collar 24 fixed to the outside of the pipe 7 by an adhesive, which includes a seal 25, made of neoprene in the example
  • the end of the pipe 11 sits in a pipe coupling 26.
  • a lifting Handle comprises a bolt 13 extending across the pipe 7
  • the bolt 13 is held in place by a nut 14
  • a probe holster 20 mounted in the lid 4 is a probe holster 20, the purpose of which is to allow a piobe to be inserted into the inside of the tank to sample the tank contents.
  • the filter housing 5 is substantially square in cross-section and includes wetxs 15 m opposing faces of the housing 5, each set at 90 degrees to the direction of flow of water in a surge condition.
  • a substantially cylindrical primary chamber 16 fits over the filter housing 5 and onto the upper surface of the lid 4.
  • the primary chamber 16 mounts two pipes, an inlet pipe 17, and an outlet pipe 18.
  • Located in the lid 4 within the perimeter of the primary chamber 16 is a skim hole 19.
  • the primary chamber 16 is provided with a manhole cover for access to the filter unit 6 and the inside of the tank 2.
  • the pipe 7 provides for easy access to the lower part of the tank 2 with a suction hose for the removal of silt, and other contents of the tank.
  • a suction hose for the removal of silt, and other contents of the tank.
  • a separator 31 is comprised of a tank 32, cylindrical in c ⁇ ross- section, having a base 33, and a lid 34.
  • the lid 34 mounts a filter housing 35 in which is mounted a filter unit 36.
  • the filter unit 36 includes a pipe 37, a lower region 38 of which is perforated, and a sleeve 39 of filter material.
  • the upper end 42 of the pipe 37 is fixed to a collar 53, which is removably attachable to the neck 54 of the filter housing 35.
  • the lower end 41 of the pipe 37 is held in the filter housing by a collar 55 fixed to the outside of the pipe 37 by an adhesive, which includes a seal 56, made of neoprene in the example
  • the end of the pipe 41 sits in a pipe coupling 56.
  • the lower end 41 of the pipe 37 opens into the main body of the tank 32.
  • a lifting handle compnses a bolt 43 extending across the pipe 37.
  • the bolt 43 is held in place by a nut 44.
  • Also mounted in the lid 34 is a probe holster 50, the purpose of winch is to allow a probe to be inserted into the inside of the tank to sample the tank contents.
  • the filter housing 35 is substantially round in cross-section.
  • a substantially cylindrical primary chamber 46 fits over the filter housing 35 and onto the upper surface of the lid 33
  • the primary chamber 46 mounts two pipes, an inlet pipe 47, and an outlet pipe 48.
  • Located in the lid 34 within the perimeter of the primary chamber 46 is a skim hole 49 T-fcie primary chamber 46 is provided with a manhole cover for access to the filter unit 36 and the inside of the tank 32
  • the pipe 37 provides for easy access to the lower part of the tank 42 with a suction hose for the removal of silt, and other contents of the tank
  • a suction hose for the removal of silt, and other contents of the tank
  • FIG. 5 illustiates an alternative embodiment of filter housing 60 in which weirs 61 are provided with filter screens 62, which m the example are formed from a metallic mesh material
  • the filter housing 60 is otherwise similar to the filter housing illustrated in Figures 1 and 2 with the lower end of the pipe 63 locating in a coupling 65 of similar design to the coupling 26 illustrated in Figures 1 and 2 and situated in the base of the filter housing 60
  • the pipe 63 is surrounded by a sleeve 64 of filter material, the section of pipe 63 covered by the sleeve being perforated
  • the filter housing 60 terminates at its upper end in a neck 68 thiough which the pipe 63 passes
  • a rim 69 extends radially outwaid from the neck 68
  • a closure member 66 is attached to the pipe 63 and co-operates with the neck 68 and nm 69 to secure the pipe 63 in place m die filter housing 60
  • the pipe 63 is fixed to an inner portion 74 of lid 66 by means of a collar 75
  • the lid 66 is formed of a plastics material, by moulding or vacuum forming
  • the lid 66 includes an edge formation including a wall 71 having an outer nm 70 Radially inward of the wall 71 is a partition 72 which together with a side wall 77 parallel to the wall 71 and a top ring 78 forms a chamber 73 in which a seal 76 is located In the example, the seal is an "O" ring
  • the chamber 73 extends around the circumference of the lid 66 and in use locates on the neck 68 of die filter housing 60
  • the neck 68 passes between the inside of the wall 71 and the O ring 76 to seal the lid 66 onto the filter housing 60
  • the pipe 63 is properly located in the filter housing 60 when the lower end of the pipe is secured in the coupling 65 and the neck 68 is engaged with die O ring 76, and the neck 68 can only engage with the O ring
  • lid 66 locates on the neck 68 of filter housing 60 provides a fitter or member of a maintenance crew with an easy indication of whether the pipe 66 is correctly located in the filter housing 60
  • the fitter simply aligns the inside of the wall 71 with the neck 68, lowers the lid 66 onto the neck and pushes downward until the seal 76 engages with the neck 68
  • the separator 89 includes a plurality of filter housings 81 each including an opening 82 for the outflow of filtered liquid
  • Each filter housing 81 operates in the same manner as the filter housings illustrated in Figures 1 to 6, the differences being the number of filter housings (three are illustrated in the example of Figures 7 to 9, and that the filter housings 81 are located in the separator 80 with only a lower portion of the pipe 81a of the filter housing 81 extending beyond the base of the separator
  • the separator 80 includes a baffle plate 83, which ensures that a head of water is present in normal conditions In surge conditions liquid does not pass through the filter housing
  • the skim pipe 86 chokes, and the liquid level rapidly rises above the baffle 83, exiting through the outlet 85
  • Lid 88 is removable to allow a hose or other apparatus to be inserted into the tank 87 to empty the same
  • FIG 10 illustrates an embodiment of the invention m which a separator 90 (similar to the separator illustrated in Figures 7 to 9 but with a single filter housing) sits on top of a tank 96
  • the top 95 of the tank 96 and the base 97 of the separator 90 are both substantially flat
  • To fit the separator 90 to the tank 96 all that is required is the cutting of two holes 98 and 99 through which the skim pipe 92 and a pipe 91a respectively are inserted
  • FIG 11 illustrates a separator 100, which is similar to the separator illustrated in Figure 10 and includes a filter housing 101, a skim pipe 102, an inlet 103 and an outlet 104
  • the wall 105 is tapered, the separator being wider at its top than its bottom
  • the function of the taper is to allow the separator 100 to be fitted into the tank 106 easily
  • the hole cut in the tank 106 can be cut such that its diameter is slightly larger than the base of die separator 100, the separator is presented up to and lowered into the hole, and when the diameter of the separator 100 matches the diameter of the hole cut m the tank 106
  • the separator 100 is then supported by the tank and a suitable sealant is applied to make the joint between the separator and tank water tight
  • Figure 12 illustrates a full retention separator 110 comprising a tank 111 having an inlet 112, an outlet 113, and mounted in the tank Ili a filter housing 114
  • the filter housing 114 is of the type illustrated in Figures 1 to 11, and functions in the same manner This type of separator is useful for filtering grease and debris from kitchen waste, in which application theie is no requirement for a by- pass mode of operation
  • the tank 111 is emptied by removing lid 115 and passing a suction hose into the said tank through the pipe 116 of the filter housing 114
  • the tank is manufactured from a plastics material, as is the primary chamber
  • an equally useful sepaiator can be made using a tank of different fabrication, for example the tank may be made from concrete, with a separator according to the invention being supplied to fit such a tank
  • the separator of the invention is particularly advantageous for a number of reasons
  • the filter unit is mounted in the upper section of the tank, thereby keeping the filter unit away from silt accumulating in the lower section of the tank
  • the filter unit includes a pipe through which a tool such as a suction hose may be passed to empty the contents of the tank
  • a housing Liquid passes from the inside of the filter to the outside thereof, as opposed to outside to inside as is the case for separators of the prior art
  • the mounting of the pipe in the housing lid facilitates easy assembly, lemoval and re-fitting of the pipe in the filter housing
  • the provision of a coupling at the base of the filter housing allows the pipe to be located easily in it correct position in the filter housing
  • the provision of internal weirs in the filter housing allows for cost effective manufacture and assembly of the separator, and screening the weirs prevents debris entrained with storm water from entering the separator

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • 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)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un séparateur (1) à monter sur un réservoir (2) présentant une partie supérieure et une partie inférieure. Ce séparateur comprend une entrée menant au réservoir, une unité de filtre (6) présentant une entrée de filtre et une sortie de filtre. Lors de son utilisation, l'unité de filtre est montée dans la partie supérieure du réservoir. Un conduit traverse le centre de l'unité de filtre et permet d'accéder au réservoir. L'invention concerne une méthode de purification d'eau faisant appel à ce séparateur.
EP05791374A 2004-09-27 2005-09-27 Separateur Withdrawn EP1807574A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0421320.3A GB0421320D0 (en) 2004-09-27 2004-09-27 A separator
GB0500254A GB2418374B (en) 2004-09-27 2005-01-07 A separator
PCT/GB2005/003727 WO2006035224A1 (fr) 2004-09-27 2005-09-27 Separateur

Publications (1)

Publication Number Publication Date
EP1807574A1 true EP1807574A1 (fr) 2007-07-18

Family

ID=35510979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05791374A Withdrawn EP1807574A1 (fr) 2004-09-27 2005-09-27 Separateur

Country Status (2)

Country Link
EP (1) EP1807574A1 (fr)
WO (1) WO2006035224A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0701521D0 (en) * 2007-01-26 2007-03-07 Invert Group Ltd Improved separator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638552A1 (de) * 1996-09-20 1998-04-02 Toni Weyerstras Filtereinrichtung für einen Regenwassersammeltank

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9401148U1 (de) * 1994-01-25 1994-03-10 Heinrich Meier Eisengießerei GmbH & Co KG, 32369 Rahden Abscheider für Leichtflüssigkeiten
DE19916880A1 (de) * 1999-04-14 2000-10-19 Isarbaustoff Gmbh & Co Kg Mineralölabscheider

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638552A1 (de) * 1996-09-20 1998-04-02 Toni Weyerstras Filtereinrichtung für einen Regenwassersammeltank

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006035224A1 *

Also Published As

Publication number Publication date
WO2006035224A1 (fr) 2006-04-06

Similar Documents

Publication Publication Date Title
JP3581233B2 (ja) 遮集タンク
US6126817A (en) Oil and debris separator
US8221632B2 (en) Surface water filtration device
US7485218B2 (en) Storm water filtration system
US6200484B1 (en) Surface water filtration apparatus
US8608956B2 (en) Curb inlet catch basin filtration apparatus
EP0711879B1 (fr) Reservoir d'interception
US7645390B1 (en) Stormwater pretreatment and disposal system and method
US4261823A (en) Storm drain catch basin
US6083402A (en) Stormwater drain filter
WO2009006795A1 (fr) Séparateur d'huile usée pour cuisine
US5569372A (en) Catch basin structure for interception of contaminants having detachable parts
US20030062324A1 (en) Oil - water separator
US9963358B2 (en) Oil stop valve assembly
KR101522817B1 (ko) 우수상태를 육안식별이 가능한 초기우수배제시스템의 투명관로
GB2418374A (en) Separator
KR101799513B1 (ko) 여과카트리지 및 이를 이용한 비점오염 처리시설
US6192915B1 (en) Sewerage inlet
US20210347633A1 (en) Fuel Delivery Sump Based Fuel Filtration, Coalescing, and Water Separation System with Water Storage and Multiple Operational Modes
US10040006B2 (en) Bag filter apparatus for filtering fluids
KR200317493Y1 (ko) 유수분리조
EP1807574A1 (fr) Separateur
KR101145050B1 (ko) 유수분리 기능을 갖는 초기우수처리 빗물받이
JP3107019U (ja) 油水分離槽を備えた排水路
IE85599B1 (en) A separator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070427

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TANKS AND CONTAINERS GROUP LIMITED

17Q First examination report despatched

Effective date: 20120704

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121115