WO1998052874A3 - Water treatment system having dosing control - Google Patents

Water treatment system having dosing control Download PDF

Info

Publication number
WO1998052874A3
WO1998052874A3 PCT/US1998/010568 US9810568W WO9852874A3 WO 1998052874 A3 WO1998052874 A3 WO 1998052874A3 US 9810568 W US9810568 W US 9810568W WO 9852874 A3 WO9852874 A3 WO 9852874A3
Authority
WO
WIPO (PCT)
Prior art keywords
water treatment
pump
hydraulically connected
treatment system
dosing control
Prior art date
Application number
PCT/US1998/010568
Other languages
French (fr)
Other versions
WO1998052874A2 (en
Inventor
Frederick C Wilkins
Arthur F Williams
Li-Shiang Liang
Herbert Bendlin
Stephane Dupont
Achim Brust
Bikram Yonjan
Original Assignee
United States Filter Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25330672&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1998052874(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by United States Filter Corp filed Critical United States Filter Corp
Priority to JP55071398A priority Critical patent/JP2002502307A/en
Priority to DE69809079T priority patent/DE69809079T2/en
Priority to EP98923710A priority patent/EP1017628B1/en
Priority to AT98923710T priority patent/ATE226921T1/en
Publication of WO1998052874A2 publication Critical patent/WO1998052874A2/en
Publication of WO1998052874A3 publication Critical patent/WO1998052874A3/en

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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • 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
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
    • 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
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges

Abstract

A water treatment system (10) having dosing control for providing treated water having very low organic and ionic contamination, that can be accurately dispensed. The water treatment system (10) having dosing control includes a water inlet (11) hydraulically connected to a pump (16) having a variable speed motor. At least one water treatment device (18, 22, 26) is hydraulically connected downstream of the pump, at least one outlet valve (30) is hydraulically connected downstream of the water treatment unit, and a recirculation line (32) is hydraulically connected from the outlet valve to the pump. The output of the pump is controlled by a regulating device (44) connected to the variable speed motor. The system provides for lower electrical current usage and reduced acoustical disturbances.
PCT/US1998/010568 1997-05-20 1998-05-20 Water treatment system having dosing control WO1998052874A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP55071398A JP2002502307A (en) 1997-05-20 1998-05-20 Water treatment equipment with automatic water distribution control
DE69809079T DE69809079T2 (en) 1997-05-20 1998-05-20 SYSTEM FOR WATER TREATMENT WITH DOSAGE CONTROL
EP98923710A EP1017628B1 (en) 1997-05-20 1998-05-20 Water treatment system having dosing control
AT98923710T ATE226921T1 (en) 1997-05-20 1998-05-20 WATER TREATMENT SYSTEM WITH DOSAGE CONTROL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/859,340 US5925240A (en) 1997-05-20 1997-05-20 Water treatment system having dosing control
US08/859,340 1997-05-20

Publications (2)

Publication Number Publication Date
WO1998052874A2 WO1998052874A2 (en) 1998-11-26
WO1998052874A3 true WO1998052874A3 (en) 1999-03-25

Family

ID=25330672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/010568 WO1998052874A2 (en) 1997-05-20 1998-05-20 Water treatment system having dosing control

Country Status (6)

Country Link
US (1) US5925240A (en)
EP (1) EP1017628B1 (en)
JP (1) JP2002502307A (en)
AT (1) ATE226921T1 (en)
DE (1) DE69809079T2 (en)
WO (1) WO1998052874A2 (en)

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Also Published As

Publication number Publication date
EP1017628B1 (en) 2002-10-30
EP1017628A2 (en) 2000-07-12
DE69809079T2 (en) 2003-07-17
WO1998052874A2 (en) 1998-11-26
DE69809079D1 (en) 2002-12-05
ATE226921T1 (en) 2002-11-15
JP2002502307A (en) 2002-01-22
US5925240A (en) 1999-07-20

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