GB2022437A - Water treatment unit - Google Patents

Water treatment unit

Info

Publication number
GB2022437A
GB2022437A GB7919659A GB7919659A GB2022437A GB 2022437 A GB2022437 A GB 2022437A GB 7919659 A GB7919659 A GB 7919659A GB 7919659 A GB7919659 A GB 7919659A GB 2022437 A GB2022437 A GB 2022437A
Authority
GB
United Kingdom
Prior art keywords
tank
water
tanks
filtration
settling
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
GB7919659A
Other versions
GB2022437B (en
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.)
BIWATER SHELLABEAR Ltd
Original Assignee
BIWATER SHELLABEAR 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 BIWATER SHELLABEAR Ltd filed Critical BIWATER SHELLABEAR Ltd
Priority to GB7919659A priority Critical patent/GB2022437B/en
Publication of GB2022437A publication Critical patent/GB2022437A/en
Application granted granted Critical
Publication of GB2022437B publication Critical patent/GB2022437B/en
Expired legal-status Critical Current

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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/087—Regeneration of the filter using gas bubbles, e.g. air
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens

Abstract

A water treatment and storage unit comprises a water tank 2 supported by a column 1 consisting of superimposed settling and filtration tanks 3,6. A preferred unit has a single column 1 consisting of a plurality of settling tanks 3 above a single filtration tank 6, the tanks having a common peripheral wall 7 which bears the weight of the water tank 2 and the base of one tank serving as the cover of the tank below. Rain water is supplied by pump 9 to the settling tanks 3 which operate in parallel, water therefrom being fed through valved pipes 25, 31, 32 to the upper portion of filtration tank 6. The water descends through a particulate filtering medium 33 and is then fed to the upper portion of water tank 2 through valved pipes 35, 36, 37. The medium 33 may be backwashed with water from tank 2, air being injected by venturi 48. Each tank may have a base whose axial cross section is an inverted W. Chemicals for sterilization and flocculation may be injected at 11. <IMAGE>
GB7919659A 1978-05-04 1979-06-06 Water treatment unit Expired GB2022437B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7919659A GB2022437B (en) 1978-05-04 1979-06-06 Water treatment unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1771778 1978-05-04
GB7919659A GB2022437B (en) 1978-05-04 1979-06-06 Water treatment unit

Publications (2)

Publication Number Publication Date
GB2022437A true GB2022437A (en) 1979-12-19
GB2022437B GB2022437B (en) 1982-05-06

Family

ID=26252881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7919659A Expired GB2022437B (en) 1978-05-04 1979-06-06 Water treatment unit

Country Status (1)

Country Link
GB (1) GB2022437B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609412A1 (en) * 1987-01-09 1988-07-15 Moreau Jean Louis Unit for recovering cleaning solvents in printing
GB2209686A (en) * 1987-09-12 1989-05-24 Kyong Shick Shin Water repurification method and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609412A1 (en) * 1987-01-09 1988-07-15 Moreau Jean Louis Unit for recovering cleaning solvents in printing
GB2209686A (en) * 1987-09-12 1989-05-24 Kyong Shick Shin Water repurification method and apparatus
GB2209686B (en) * 1987-09-12 1991-12-11 Kyong Shick Shin Water repurification method and apparatus
US5110482A (en) * 1987-09-12 1992-05-05 Goldstar, Co., Ltd. Water repurification method of city water and its equipment

Also Published As

Publication number Publication date
GB2022437B (en) 1982-05-06

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990605