GB2466698A - A filter apparatus - Google Patents

A filter apparatus Download PDF

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Publication number
GB2466698A
GB2466698A GB0921993A GB0921993A GB2466698A GB 2466698 A GB2466698 A GB 2466698A GB 0921993 A GB0921993 A GB 0921993A GB 0921993 A GB0921993 A GB 0921993A GB 2466698 A GB2466698 A GB 2466698A
Authority
GB
United Kingdom
Prior art keywords
filter
filter apparatus
water
compartment
filter medium
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.)
Granted
Application number
GB0921993A
Other versions
GB0921993D0 (en
GB2466698B (en
Inventor
Jason Shingleton
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.)
Polypipe Civils Ltd
Original Assignee
Polypipe Civils 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
Application filed by Polypipe Civils Ltd filed Critical Polypipe Civils Ltd
Publication of GB0921993D0 publication Critical patent/GB0921993D0/en
Publication of GB2466698A publication Critical patent/GB2466698A/en
Application granted granted Critical
Publication of GB2466698B publication Critical patent/GB2466698B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C02F1/004—Processes for the treatment of water whereby the filtration technique is of importance using large scale industrial sized filters
    • 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
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2093—Ceramic foam
    • 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
    • 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
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Textile Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Filtering Materials (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

A filter apparatus 1, for filtering water which contains carbon-based contaminants such as fuel, oil, petrol, diesel and other hydrocarbons, comprises a housing 2 having an inlet 3, an outlet 4 for the purified water and a filter medium 5 adapted to coalesce the contaminants and instigate removal from the water. The filter medium 5 may comprise an open void foam filter medium which is removable from the apparatus. As petrol/oil contaminants coalesce upon the filter element 5, the particle/ globule size increases such that the globules float off the element and rise to the top of the apparatus and maybe removed through opening 16. The device may comprise two compartments, the first compartment 6 contains the filter medium 5 and connects to a second compartment 7 by a flow passage 9. The second compartment 7 may comprise treatment filter elements for the removal of heavy metals and phosphates. The inlet may be angled such that silt 15 is caused to sediment upon the base of the first compartment 6.

Description

A FILTER APPARATUS
The invention relates to a filter apparatus, particularly for filtering water from trafficked areas.
It will be understood that by "trafficked areas" is meant an area over which vehicles pass, for example a road, car park or service area. In such areas, the vehicles tend to drop carbon-based fuel such as petrol, diesel and lubricating or sump oil which can pass to rivers and streams or the wider environment either by a washing process, or with rainwater. In either case, the contaminant can pollute the environment.
It is an object of the invention to seek to mitigate this disadvantage.
According to the invention there is provided a filter apparatus for water containing carbon-based contaminants, comprising a housing having an inlet and an outlet for water to be filtered and a filter medium in the housing adapted to coalesce carbon-based contaminantS whereby to filter same from the water.
The filter medium may comprise a foam filter medium, particularly an open void foam filter medium. This provides for passing of water whilst filtering said contaminants therefrom.
The filter medium may be removable for exchange or regeneration. This provides for efficient operation.
The housing may suitably comprise two filter compartments into one of which water to be filtered passes and the other of which is a downstream compartment from which the outlet debouches. This provides a relatively simple through flow apparatus.
The two compartments may be separated by wall means which define a flow passage for water therebetween.
The filter medium may be located in the one compartment.
The filter medium may be positioned at an outlet from the one compartment which leads to the flow passage. This provides an efficient filtering action.
The flow passage may provide an inlet for upward flow of the water into the other compartment.
Suitably, there may be a plurality, suitably two, of said inlets which are spaced apart. In such an embodiment the or each inlet may lead to a respective treatment filter element in the other housing.
The or each treatment filter element may comprise a back-washable element.
In the filer apparatus the one compartment may comprise a silt sedimentation part.
According to a second aspect there is provided a drainage installation, comprising a filter apparatus as hereinbefore defined.
The outlet may be connected to a storage facility or to waste e.g. a soakaway.
A filter apparatus embodying the invention is hereinafter described, by way of example, with reference to the accompanying drawing which is a schematic cross-sectional view of the apparatus.
Referring to the drawing there is shown a filter apparatus 1 for filtering water containing carbon-based contaminants such as fuel, comprising a housing 2 having an inlet 3 and an outlet 4 for water and a filter medium 5 upstream of the outlet 4 adapted to coalesce carbon-based fuel contaminants whereby to filter them from the water.
In the embodiment the apparatus 1 comprises two compartmentS 6 and 7 into one 6 of which the inlet 3 debouches and from the other 7 of which the outlet 4 debouches. The two compartments 6 and 7 are separated by a wall system 8, 8', 8" which provides a flow passage 9 between the two compartments 6 and 7.
The filter medium 5 is in the embodiment an open foam filter medium which is position in the one (first) compartment 6 over an inlet 10 to the flow passage 9, the filter medium 5 being removable from the compartment 6 for regeneration or replacement when it is spent.
The flow passage 9 has in the embodiment two inlets 11 into the other (second) compartment 7 (which, in the embodiment, is downstream of the first compartment (6), though one, or more than two, can be provided. Each respective inlet 11 leads to a treatment filter 12 such as a mesh or cloth filter. The treatment filter(s) 12 in an embodiment comprise(s) one or more of zeolites, pearlites, or chemically treated concrete, andlor foam. The treatment filter may filter using precipitation, absorption, adsorption or sorption.
The inlet 3 is in the embodiment positioned to be angled to a boundary 13 of the apparatus 1 so that a radial flow pattern of water to be filtered is generated, which promotes a radial flow which in turn generates sedimentation of particles entrained in the water. The particles collect as silt 15 in a silt separation part 14 at the base, as viewed, of the one compartment 6.
In use, contaminated water flows from the inlet 3, silt 15 is separated and the water, containing carbon based contaminants such as petrol and/or oil passes to the open void coalescing filter element 5. The petrol andlor oil coalesces at the filter element 5, builds up and increases in particle or globule size and eventually is of sufficient size for it to float off the element 5 and rise to the top of the one compartment 6 for eventual collection and removal, say at 16. Since the filter element 5 is an open void structure, water without the contaminant always passes through it to the flow passage 9, where other contaminants such as heavy metals and phosphates are removed by the treatment filters 12, which are removable periodically for replacement.
The clean water then flows out of the outlet 4 and is clean enough to be passed straight to the environment via for example a soakaway, or can be passed to store.
It will be understood that the invention described with reference to the drawing provides essentially a carbon-based fuel contaminant interceptor function in the one compartment or chamber 6 and an up-flowing secondary filtration process function in the other compartment or chamber 7. The water being filtered may include surface water, run-off water, and flood water.

Claims (18)

  1. CLAIMS1. A filter apparatus for water containing carbon-based contaminants, comprising a housing having an inlet and an outlet for water to be filtered, and a filter medium in the housing adapted to coalesce carbon-based contaminants whereby to filter same from the water.
  2. 2. A filter apparatus according to Claim 1, the filter medium comprising a foam filter medium.
  3. 3. A filter apparatus according to Claim 2, comprising an open void foam filter medium.
  4. 4. A filter apparatus according to any preceding claim, the filter medium being removable for exchange or regeneration.
  5. 5. A filter apparatus according to any preceding claim, the housing comprising two filter compartments into one of which water to be filtered passes and the other of which is a downstream compartment from which the outlet debouches.
  6. 6. A filter apparatus according to Claim 5, the two compartments being separated by wall means which define a flow passage for water therebetween.
  7. 7. A filter apparatus according to Claim 6, the filter medium being located in the one compartment.
  8. 8. A filter apparatus according to Claim 7, the filter medium being positioned at an outlet from the one apartment which leads to the flow passage.
  9. 9. A filter apparatus according to Claim 8, the flow passage providing an inlet for upward flow of the water into the other compartment.
  10. 10. A filter according to Claim 9, there being a plurality, suitably two, of said inlets which are spaced apart.
  11. 11. A filter apparatus according to Claim 9 or Claim 10, the or each inlet leading to a respective treatment filter element in the other housing.
  12. 12. A filter apparatus according to Claim 11, the or each treatment filter element comprising a back-washable element.
  13. 13. A filter apparatus according to Claim 11 or 12, the or one or more treatment filter element comprising one or more of zeolites, pearlites, chemically treated concrete, or foam.
  14. 14. A filter apparatus according to any preceding claim, the one compartment comprising a silt sedimentation part.
  15. 15. A filter apparatus for filtering water containing carbon-based fuel contaminants, substantially as hereinbefore described with reference to the accompanying drawing.
  16. 16. A drainage installation, comprising a filter apparatus according to any preceding claim.
  17. 17. A system according to Claim 16, the outlet being connected to a storage facility or to waste.
  18. 18. A system according to Claim 17, the outlet being connected to a soakaway.
GB0921993.2A 2008-12-16 2009-12-16 A filter apparatus Active GB2466698B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0822916.3A GB0822916D0 (en) 2008-12-16 2008-12-16 A filter apparatus

Publications (3)

Publication Number Publication Date
GB0921993D0 GB0921993D0 (en) 2010-02-03
GB2466698A true GB2466698A (en) 2010-07-07
GB2466698B GB2466698B (en) 2013-03-13

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ID=40326193

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Application Number Title Priority Date Filing Date
GBGB0822916.3A Pending GB0822916D0 (en) 2008-12-16 2008-12-16 A filter apparatus
GB0921993.2A Active GB2466698B (en) 2008-12-16 2009-12-16 A filter apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0822916.3A Pending GB0822916D0 (en) 2008-12-16 2008-12-16 A filter apparatus

Country Status (1)

Country Link
GB (2) GB0822916D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140158643A1 (en) * 2008-10-07 2014-06-12 Schroeder Industries, Llc Method of Dewatering Hydraulic, Lubricating and Petroleum Based Fluids using a Positive Pressure Drying Gas in a Gravity Operated, Mobile, Dewatering System
EP3221523A4 (en) * 2014-11-19 2018-08-22 Rensa Entreprenad Sverige AB Separation arrangement for the separation of food waste from water
AU2015294978B2 (en) * 2014-07-31 2021-07-08 Eric J. Love Sediment filtration device, method and system
RU216201U1 (en) * 2021-12-14 2023-01-23 Общество С Ограниченной Ответственностью "Группа Полипластик" WASTE WATER TREATMENT DEVICE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU187839U1 (en) * 2018-03-28 2019-03-19 Общество с ограниченной ответственностью "Первая Национальная Группа" SEWAGE TREATMENT PLANT
CN110743225B (en) * 2019-11-26 2021-12-03 清远楚江铜业有限公司 Copper industry waste water treatment equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433764A (en) * 1973-04-05 1976-04-28 Hydronautics System for separating oil from oil-contaminated water
US4497707A (en) * 1983-03-21 1985-02-05 Marine Construction & Design Co. Regenerable flow-through oil/water separation apparatus
EP0264877A2 (en) * 1986-10-24 1988-04-27 Friwa, Zeiss-Neutra Umwelttechnik AG Device for separating and retaining undissolved hydrocarbons from water
WO2001058560A1 (en) * 2000-02-11 2001-08-16 Solidification Products International, Inc. Filtration of hydrocarbon containing liquid
GB2423299A (en) * 2005-02-18 2006-08-23 Conder Products Ltd Oil/water separator for use in drainage systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088578A (en) * 1975-03-07 1978-05-09 Fujisash Industries, Ltd. Process and apparatus for separating oil from water contaminated with oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1433764A (en) * 1973-04-05 1976-04-28 Hydronautics System for separating oil from oil-contaminated water
US4497707A (en) * 1983-03-21 1985-02-05 Marine Construction & Design Co. Regenerable flow-through oil/water separation apparatus
EP0264877A2 (en) * 1986-10-24 1988-04-27 Friwa, Zeiss-Neutra Umwelttechnik AG Device for separating and retaining undissolved hydrocarbons from water
WO2001058560A1 (en) * 2000-02-11 2001-08-16 Solidification Products International, Inc. Filtration of hydrocarbon containing liquid
GB2423299A (en) * 2005-02-18 2006-08-23 Conder Products Ltd Oil/water separator for use in drainage systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140158643A1 (en) * 2008-10-07 2014-06-12 Schroeder Industries, Llc Method of Dewatering Hydraulic, Lubricating and Petroleum Based Fluids using a Positive Pressure Drying Gas in a Gravity Operated, Mobile, Dewatering System
US9782693B2 (en) * 2008-10-07 2017-10-10 Schroeder Industries, Llc Method of dewatering hydraulic, lubricating and petroleum based fluids using a positive pressure drying gas in a gravity operated, mobile, dewatering system
AU2015294978B2 (en) * 2014-07-31 2021-07-08 Eric J. Love Sediment filtration device, method and system
EP3221523A4 (en) * 2014-11-19 2018-08-22 Rensa Entreprenad Sverige AB Separation arrangement for the separation of food waste from water
RU216201U1 (en) * 2021-12-14 2023-01-23 Общество С Ограниченной Ответственностью "Группа Полипластик" WASTE WATER TREATMENT DEVICE

Also Published As

Publication number Publication date
GB0822916D0 (en) 2009-01-21
GB0921993D0 (en) 2010-02-03
GB2466698B (en) 2013-03-13

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