GB2302290A - Water filtration apparatus - Google Patents

Water filtration apparatus Download PDF

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Publication number
GB2302290A
GB2302290A GB9612530A GB9612530A GB2302290A GB 2302290 A GB2302290 A GB 2302290A GB 9612530 A GB9612530 A GB 9612530A GB 9612530 A GB9612530 A GB 9612530A GB 2302290 A GB2302290 A GB 2302290A
Authority
GB
United Kingdom
Prior art keywords
vessel
water
filtration apparatus
water filtration
outlet
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
GB9612530A
Other versions
GB9612530D0 (en
GB2302290B (en
Inventor
Rodney Thomas Firmin
Garry Aubrey Bourne
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9612530D0 publication Critical patent/GB9612530D0/en
Publication of GB2302290A publication Critical patent/GB2302290A/en
Application granted granted Critical
Publication of GB2302290B publication Critical patent/GB2302290B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • 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
    • B01D21/0006—Settling tanks provided with means for cleaning and maintenance
    • 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
    • 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
    • B01D21/0042—Baffles or guide 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
    • B01D21/0057—Settling tanks provided with contact surfaces, e.g. baffles, particles with counter-current flow direction of liquid and 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
    • B01D21/02—Settling tanks with single outlets for the separated 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
    • B01D21/2405—Feed mechanisms for settling tanks
    • 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
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

Water filtration apparatus comprises a solids settlement vessel 2, a sump 3 at the bottom of the vessel 2 for receiving settled solids and means 10 in the vessel or associated therewith for receiving water to be filtered and for reducing the rate of flow of the water, the means having an outlet exiting into the vessel 2 at or adjacent to the sump 3.

Description

TITLE: WATER FILTRATION APPARATUS DESCRIPTION The invention relates to water filtration apparatus more particularly, but not exclusively, for use in association with fish ponds.
It is known to provide water filtration apparatus for a fish pond comprising a solids settling tank.
It is an object of the invention to provide water filtration apparatus for use in association with a fish pond and which is efficient in operation and simple in construction.
According to the invention water filtration apparatus comprises a solids settlement vessel, a sump at the bottom of the vessel for receiving settled solids, means in the vessel or associated therewith for receiving water to be filtered and for reducing the rate of flow of the water, the means having an outlet exiting into vessel at or adjacent to the sump.
Preferably, the outlet is arranged to discharge the water downwardly into the vessel. Preferably a downwardly directed baffle is disposed in the sump at a position below the outlet. Preferably the baffle presents a substantially conical surface to the outlet. The baffle may however be part spherical, parabolic or pyramidal in shape.
Preferably the baffle is raised above the bottom of the sump.
Preferably the means for receiving water to be filtered and for reducing the rate of flow thereof comprises an entry portion extending substantially vertically of the vessel and discharging at its upper end into a downwardly extending intermediate portion extending substantially concentrically around the entry portion, the cross-sectional area of the intermediate portion being greater than that of the entry portion, and the intermediate portion terminating at its lower end at the outlet. The outlet may comprise a divergent section.
The vessel may be open-topped, and may have an outlet at its upper end. The vessel may comprise one or more perforated trays extending over substantially the whole of the cross-sectional area of the vessel for supporting filter media, e.g. for mechanical and/or biological and/or chemical filtration.
An outlet for settled solids may be provided in the sump.
The invention is diagrammatically illustrated, by way of example, in the accompanying drawings, in which: Figure 1 is a sectional side view of a first embodiment of water filtration apparatus for use in association with a fish pond, and Figure 2 is a sectional side view of a second embodiment of water filtration apparatus for use in association with a fish pond.
Referring to Figure 1 of the drawings, a fish pond filter 1 comprises a solids settlement vessel 2 adapted to contain water to be filtered to a level indicated by reference 19 and which is generally square in plan view and provided with steps 16 whereby the width of the vessel increases from its base 8 to its top. The top of the vessel is open for access into the vessel, e.g. for maintenance, and is closed by a lid 17. The bottom of the vessel forms a sump 3 for receiving settled solids.
A water inlet pipe 9 extends into the vessel from a central position in its base 8 and has its major portion 11 extending generally vertically and its upper end 12 at a position midway between the base and top of the vessel.
The water inlet pipe 9 is surrounded, generally concentrically, by a receiver 4 which is in the form of a generally tubular open-ended intermediate vessel 10 with its axis upright and extending at its upper end 18 to a position above the waterline 19 and at its lower end forms an outlet 5 discharging into the interior of the vessel 2 near to its base 8. The outlet 5 is positioned to discharge water downwardly against a baffle 6 having a conical upper face 7 positioned immediately above the base 8.
The vessel 2 is preferably filled with a filter medium 5 which is supported on apertured supports e.g. in the form of one or more perforated plates 20 which are supported on the shoulders formed by the steps 16 in the vessel.
One or more outlets 13 for filtered water are disposed immediately below the waterline 19 near to the top of the vessel. An outlet 14 for solids waste is provided at the sump 3 and under the control of a valve or the like (not shown).
The filter of Figure 2 is generally similar to that of Figure 1, but in this case the inlet water discharges into the receiver 4 in the vessel through an inlet 9 disposed in the lid 17.
In operation water to be filtered is pumped into the vessel 2 through the inlet pipe 9 and is slowed as it passes through the intermediate receiving chamber 4 which is of greater cross-sectional area than the inlet pipe 9.
The water is slowed again as it exits from the intermediate chamber at 5 into the main chamber of the vessel and the slow moving water is then directed by the conical baffle 6 towards the sump 3 where the solids are deposited. Cleaned water exits from the outlets 13 near to the top of the vessel 2. The cleaned water may then be further treated e.g. by mechanical and/or biological and/or chemical filtration. When the filtration apparatus of the invention is used as one of a series of water treatment steps, the outlet from the vessel can be arranged at any suitable position in the vessel.
The invention thus provides simple and effective water filtration apparatus.

Claims (12)

1. Water filtration apparatus comprising a solids settlement vessel, a sump at the bottom of the vessel for receiving settled solids, means in the vessel or associated therewith for receiving water to be filtered and for reducing the rate of flow of the water, the means having an outlet exiting into the vessel at or adjacent to the sump.
2. Water filtration apparatus according to claim 1, wherein the outlet is arranged to discharge the water downwardly into the vessel.
3. Water filtration apparatus according to claim 2, comprising a downwardly directed baffle disposed in the sump at a position below the outlet.
4. Water filtration apparatus according to claim 3, wherein the baffle presents a substantially conical surface to the outlet.
5. Water filtration apparatus according to claim 3 or claim 4, wherein the baffle is raised above the bottom of the sump.
6. Water filtration apparatus according to any preceding claim, comprising an inlet for water to be filtered and wherein the means for receiving water to be filtered and for reducing the rate of flow thereof comprises an intermediate vessel the cross-sectional area of which is greater than that of the water inlet, the intermediate vessel terminating at its lower end at the outlet.
7. Water filtration apparatus according to claim 6, wherein the water inlet comprises an entry portion extending substantially vertically of the vessel and discharging at its upper end into the intermediate vessel.
8. Water filtration apparatus according to any preceding claim, wherein the outlet comprises a divergent section.
9. Water filtration apparatus according to any preceding claim, wherein the vessel has an outlet for filtered water at its upper end.
10. Water filtration apparatus according to any preceding claim, wherein the vessel comprises at least one apertured support extending over substantially the whole of the cross-sectional area of the vessel for supporting a filter.
11. Water filtration apparatus according to any preceding claim, comprising an outlet for settled solids in the sump.
12. Water filtration apparatus substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.
GB9612530A 1995-06-15 1996-06-14 Water filtration apparatus Expired - Fee Related GB2302290B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9512172.9A GB9512172D0 (en) 1995-06-15 1995-06-15 Water filtration apparatus

Publications (3)

Publication Number Publication Date
GB9612530D0 GB9612530D0 (en) 1996-08-14
GB2302290A true GB2302290A (en) 1997-01-15
GB2302290B GB2302290B (en) 1999-07-07

Family

ID=10776120

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9512172.9A Pending GB9512172D0 (en) 1995-06-15 1995-06-15 Water filtration apparatus
GB9612530A Expired - Fee Related GB2302290B (en) 1995-06-15 1996-06-14 Water filtration apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9512172.9A Pending GB9512172D0 (en) 1995-06-15 1995-06-15 Water filtration apparatus

Country Status (1)

Country Link
GB (2) GB9512172D0 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806858A1 (en) * 1998-02-19 2000-05-25 Emschergenossenschaft Lippever Sedimentation basin with a round shape for separating sludge from waste water
GB2371244A (en) * 2001-01-18 2002-07-24 Nicholas Jackson A water purification system
WO2003035213A1 (en) * 2001-10-25 2003-05-01 Washtec Holding Gmbh Device and method for the purification of effluent
RU2504711C1 (en) * 2012-12-24 2014-01-20 Общество с ограниченной ответственностью "АкваПромСервис" Vertical impact mud strainer
RU175457U1 (en) * 2017-05-18 2017-12-05 Общество с ограниченной ответственностью Урало-Сибирская Компания "НЕКСАН" Vertical inertial gravity filter
SE2150554A1 (en) * 2021-04-30 2022-10-31 Rototec Ab Method and device for cleaning grey water

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB409226A (en) *
US3768652A (en) * 1972-01-17 1973-10-30 J Jardim Er reconditioning unit for aquaria
US3965013A (en) * 1974-10-31 1976-06-22 Jackson George F Gravity clarifier
US4274958A (en) * 1978-10-10 1981-06-23 Dorr-Oliver Incorporated Flocculant distributor means for feedwell
US4446027A (en) * 1980-03-20 1984-05-01 Environmental Elements Corp. Buoyant media filter
SE8203454L (en) * 1982-06-04 1983-12-05 Ernryd Leif Ab DEVICE FOR Separation of solid particles from a liquid
US4692246A (en) * 1986-04-17 1987-09-08 Simon Abraham E Cartridge filter with plural medias
US4761235A (en) * 1987-01-12 1988-08-02 Hazleton Stainless Casting Company Waste collection device for garbage grinder
US4895646A (en) * 1988-06-20 1990-01-23 Willinger Brothers, Inc. External aquarium filter
JP2790031B2 (en) * 1994-02-22 1998-08-27 日本電気株式会社 Net information extraction method and device
GB9420736D0 (en) * 1994-10-14 1994-11-30 Univ Bristol Sedimentation tanks

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806858A1 (en) * 1998-02-19 2000-05-25 Emschergenossenschaft Lippever Sedimentation basin with a round shape for separating sludge from waste water
GB2371244A (en) * 2001-01-18 2002-07-24 Nicholas Jackson A water purification system
GB2371244B (en) * 2001-01-18 2004-05-12 Nicholas Jackson Water purification system
WO2003035213A1 (en) * 2001-10-25 2003-05-01 Washtec Holding Gmbh Device and method for the purification of effluent
DE10152047B4 (en) * 2001-10-25 2006-03-09 Washtec Holding Gmbh Apparatus and method for purifying wastewater
RU2504711C1 (en) * 2012-12-24 2014-01-20 Общество с ограниченной ответственностью "АкваПромСервис" Vertical impact mud strainer
RU175457U1 (en) * 2017-05-18 2017-12-05 Общество с ограниченной ответственностью Урало-Сибирская Компания "НЕКСАН" Vertical inertial gravity filter
SE2150554A1 (en) * 2021-04-30 2022-10-31 Rototec Ab Method and device for cleaning grey water
WO2022231508A1 (en) * 2021-04-30 2022-11-03 Rototec Ab Device and method for cleaning water accruing from drilling in the ground
SE545180C2 (en) * 2021-04-30 2023-05-02 Rototec Ab Method and device for cleaning water accruing from drilling in the ground

Also Published As

Publication number Publication date
GB9512172D0 (en) 1995-08-16
GB9612530D0 (en) 1996-08-14
GB2302290B (en) 1999-07-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090614