CA2189757A1 - Method and apparatus for water treatment - Google Patents

Method and apparatus for water treatment

Info

Publication number
CA2189757A1
CA2189757A1 CA002189757A CA2189757A CA2189757A1 CA 2189757 A1 CA2189757 A1 CA 2189757A1 CA 002189757 A CA002189757 A CA 002189757A CA 2189757 A CA2189757 A CA 2189757A CA 2189757 A1 CA2189757 A1 CA 2189757A1
Authority
CA
Canada
Prior art keywords
water
ozone
filtering stages
water treatment
vessel
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
CA002189757A
Other languages
French (fr)
Other versions
CA2189757C (en
Inventor
Stephen A. Uban
Richard C. Maxson
Ralph W. Holliday
Mark E. Watson
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.)
Westech Engineering LLC
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
Priority claimed from US08/241,657 external-priority patent/US5514284A/en
Application filed by Individual filed Critical Individual
Publication of CA2189757A1 publication Critical patent/CA2189757A1/en
Application granted granted Critical
Publication of CA2189757C publication Critical patent/CA2189757C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • B01D24/20—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 provided in an open container
    • B01D24/24—Downward filtration, the container having distribution or collection headers or pervious conduits
    • 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
    • B01D24/20—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 provided in an open container
    • B01D24/26—Upward filtration
    • 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
    • C02F1/5209—Regulation methods for flocculation or precipitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/14—Particulate filter materials with a lower density than the liquid mixture to be filtered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/48—Overflow systems
    • 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators

Abstract

An apparatus for treating water includes a verti-cally extending contact vessel (60), wherein water is contacted with ozone (53), and a return vessel (61) which contains a column (24) of water of a suffi-cient height to drive water through downstream filtering stages (12). Ozone is removed from the water and the rate of ozone injection is monitored and automatically adjusted so that no great amount of ozone remains in water entering the filtering stages (12). The ozone is generated in elongated elements (58) that are cooled by the process water and that are positioned to serve as a static mixer for such water.
CA002189757A 1994-05-12 1995-05-12 Method and apparatus for water treatment Expired - Fee Related CA2189757C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US241,657 1994-05-12
US08/241,657 US5514284A (en) 1994-05-12 1994-05-12 Method and apparatus for water treatment
PCT/US1995/006029 WO1995031407A1 (en) 1994-05-12 1995-05-12 Method and apparatus for water treatment

Publications (2)

Publication Number Publication Date
CA2189757A1 true CA2189757A1 (en) 1995-11-23
CA2189757C CA2189757C (en) 2007-08-14

Family

ID=38434428

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002189757A Expired - Fee Related CA2189757C (en) 1994-05-12 1995-05-12 Method and apparatus for water treatment

Country Status (1)

Country Link
CA (1) CA2189757C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6953525B2 (en) 2002-05-28 2005-10-11 Ms Filter Inc. Potable water treatment plant and method of maintaining same
CN114956302A (en) * 2022-05-11 2022-08-30 山东省水利科学研究院 Low-energy-consumption membrane ozone air flotation integrated device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6953525B2 (en) 2002-05-28 2005-10-11 Ms Filter Inc. Potable water treatment plant and method of maintaining same
US7258798B2 (en) 2002-05-28 2007-08-21 Ms Filter Inc. Potable water treatment plant and method of maintaining same
CN114956302A (en) * 2022-05-11 2022-08-30 山东省水利科学研究院 Low-energy-consumption membrane ozone air flotation integrated device

Also Published As

Publication number Publication date
CA2189757C (en) 2007-08-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140513