WO1985001280A1 - Appareil pour neutraliser de l'eau acidulee - Google Patents

Appareil pour neutraliser de l'eau acidulee Download PDF

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Publication number
WO1985001280A1
WO1985001280A1 PCT/SE1984/000299 SE8400299W WO8501280A1 WO 1985001280 A1 WO1985001280 A1 WO 1985001280A1 SE 8400299 W SE8400299 W SE 8400299W WO 8501280 A1 WO8501280 A1 WO 8501280A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
water
particles
fluidization
mms
Prior art date
Application number
PCT/SE1984/000299
Other languages
English (en)
Inventor
Ulo PÄÄBO
Original Assignee
Ifö Sanitär AB
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 Ifö Sanitär AB filed Critical Ifö Sanitär AB
Priority to DE3490415A priority Critical patent/DE3490415C2/de
Priority to GB08510945A priority patent/GB2157671B/en
Publication of WO1985001280A1 publication Critical patent/WO1985001280A1/fr
Priority to NO851788A priority patent/NO159013C/no
Priority to FI851794A priority patent/FI81076C/fi

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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/688—Devices in which the water progressively dissolves a solid compound
    • 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
    • C02F1/529—Processes or devices for preparing lime water
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment

Definitions

  • Another object of the invention is to eliminate the need of continuous operation of the other components of the system, meaning that the apparatus shall not require the presence of an always present pump-generated water flow but render itself for use also in systems where the pumps operate intermittently only.
  • a further object of the invention is to provide an apparatus of the type above mentioned which is very reliable in service and, in principle, does not require any service or maintenance, naturally excepting the obvious need for periodic supply of basic material.
  • the present invention there is to the upper portion of the fluidization chamber connected a supply chamber for basic material. Further, the effective cross-sectional area of the fluidization chamber does successively increase in the direction of water flow meaning that the flow rate does correspondingly decrease whereby the particles are stratified so that the biggest particles are found in the lowermost layers and the smallest particles at the top. As the particles are consumed by being ground against each other they are successively displaced to higher levels. The material thus consumed is replaced by new material moving downwards from the supply chamber. In comparison with the apparatus previously suggested the subject of the present invention has several advantages.
  • the apparatus does essentially consist of a cylindrical vessel 1 to be interconnected between the pressure pipe from a pump and a hydrophore in a water supply system feeding a number of taps.
  • the pressure pipe 2 from the pump enters the vessel approximately at the middle between its bottom and top.
  • Via an elbow pipe 3 it is connected to a vertical pipe 4 open at its bottom end which is located a short distance above the bottom of the fluidization chamber 6.
  • the outlet 8 for treated water is, according to the embodiment here described, located at the highest point of the vessel.
  • the space inside the vessel between the top surface of the limestone particles and the water outlet form a water storage tank.
  • the fluidization chamber 6 which in this instance is of circular cross-section diverges somewhat upwards, i.e. it has the shape of a truncated cone. Only for the purpose of exemplifying suitable proportions it may be mentioned that the inner diameter of the chamber at the bottom may be about 25% of its height. The diameter at the upper portion of the fluidization chamber may be about 40% of that value, corresponding to a conicity of 5-10°. Also exclusively for illustration purposes there are now given some suitable absolute dimensions for an apparatus intended to be used in a water supply system for one or a few households. The bottom diameter may be
  • the lift force acting on the particles is proportional to the flow rate the lift will have its maximum at the bottom of the chamber and be successively lower at higher levels. It follows therefrom that, in a given apparatus operating with certain given parameters, within the particle size interval where fluidization is possible the biggest particles will be floating near the bottom of the fluidization chamber. The smallest particles within that interval will be fluidized further up in the chamber and still smaller particles will by the streaming water be transported to the supply chamber 7. During their passage through that chamber they are exposed to further friction so that, when they finally reach outlet 8, they may for practical purposes be considered completely dissolved. To sum up, the particles will float at different levels, they will be "stratified", so that the total size range of floating particles will be significantly increased.
  • the cross-sectional area of chamber 7 is that much larger than that of chamber 6 that the flow rate therein is so low that no fluidization can take place. Instead, the limestone particles will remain packed and immobile in chamber 7. This makes it possible to control and limit the process in such way that the material is consumed in chamber 6 only.
  • the efficiency of the apparatus in terms of optimized use of the limestone material is very good resulting in an extremely low consumption of the material; for a one family home of the size of order of 15 kgs annually.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Appareil pour neutraliser de l'eau acidulée par du calcaire ou un matériau basique similaire. Cet appareil peut être utilisé pour augmenter le pH de l'eau provenant de puits ou autres et n'alimentant qu'un ou que quelques ménages. Conformément à la présente invention, un appareil comportant une chambre de fluidisation (6) pour des particules basiques solides dont la taille se situe environ entre 1 et 10 mm est connecté dans le système d'alimentation d'eau. L'eau pénètre dans la chambre à la partie inférieure de celle-ci et s'écoule vers le haut. La section transversale de la chambre augmente dans la direction d'écoulement, si bien que les particules les plus lourdes se trouveront près du fond et les particules les plus légères à des niveaux plus haut. Une chambre de stockage (7) en entonnoir est située au-dessus de la chambre de fluidisation et remplace au fur et à mesure le matériau utilisé.
PCT/SE1984/000299 1983-09-16 1984-09-14 Appareil pour neutraliser de l'eau acidulee WO1985001280A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3490415A DE3490415C2 (de) 1983-09-16 1984-09-14 Vorrichtung zum Neutralisieren von saurem Wasser
GB08510945A GB2157671B (en) 1983-09-16 1984-09-14 Apparatus for neutralizing acidified water
NO851788A NO159013C (no) 1983-09-16 1985-05-06 Apparat for noeytralisering av surgjort vann.
FI851794A FI81076C (fi) 1983-09-16 1985-05-07 Anordning foer neutralisering av syresatt vatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8304991A SE447819B (sv) 1983-09-16 1983-09-16 Anordning for neutralisering av forsurat vatten
SE8304991-6 1983-09-16

Publications (1)

Publication Number Publication Date
WO1985001280A1 true WO1985001280A1 (fr) 1985-03-28

Family

ID=20352524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1984/000299 WO1985001280A1 (fr) 1983-09-16 1984-09-14 Appareil pour neutraliser de l'eau acidulee

Country Status (5)

Country Link
DE (2) DE3490415T1 (fr)
FI (1) FI81076C (fr)
GB (1) GB2157671B (fr)
SE (1) SE447819B (fr)
WO (1) WO1985001280A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742593A (en) * 1985-09-12 1988-05-10 Coxwold (Proprietary) Ltd. Valve member for water interruption pool cleaner
US5993737A (en) * 1995-04-24 1999-11-30 Implico B.V. Stabilization of water
WO2001036336A1 (fr) * 1999-11-15 2001-05-25 Green Turtle Technologies Ltd. DISPOSITIF D'AUGMENTATION DU pH D'UN COURANT AQUEUX

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0118322D0 (en) 2001-07-27 2001-09-19 Ici Plc Catalyst or sorbent beds

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH379416A (de) * 1959-07-27 1964-06-30 Turicit Ag Verfahren zur Neutralisation saurer Abwässer
DE1517668A1 (de) * 1964-10-24 1970-07-23 Riemer Dr Heinrich Verfahren zur Neutralisation saurer Abwaesser
CH519930A (de) * 1971-04-28 1972-03-15 Uetikon Chem Fab Verfahren und Einrichtung zum Herstellen und anschliessenden Zuführen einer Lösung
FR2413324A1 (fr) * 1977-12-28 1979-07-27 Uop Inc Procede et appareillage pour conditionner de l'eau demineralisee
SE420271B (sv) * 1979-09-20 1981-09-28 Stig E Alberg Apparat for upplosning av svarlosbara, partikelformiga emnen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR997445A (fr) * 1949-09-12 1952-01-07 Procédé et appareil pour la désintégration hydraulique des matières à gros grains
DE2549495A1 (de) * 1975-11-05 1977-05-18 Krupp Koppers Gmbh Trichterfoermige vorrichtung fuer die neutralisation von abwasser oder dergleichen fluessigkeiten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH379416A (de) * 1959-07-27 1964-06-30 Turicit Ag Verfahren zur Neutralisation saurer Abwässer
DE1517668A1 (de) * 1964-10-24 1970-07-23 Riemer Dr Heinrich Verfahren zur Neutralisation saurer Abwaesser
CH519930A (de) * 1971-04-28 1972-03-15 Uetikon Chem Fab Verfahren und Einrichtung zum Herstellen und anschliessenden Zuführen einer Lösung
FR2413324A1 (fr) * 1977-12-28 1979-07-27 Uop Inc Procede et appareillage pour conditionner de l'eau demineralisee
SE420271B (sv) * 1979-09-20 1981-09-28 Stig E Alberg Apparat for upplosning av svarlosbara, partikelformiga emnen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, abstract of JP 55-155 790 publ 4 December 1980 *
Vatten, tidskrift foer vattenvard, Vol 37 (1981) no 4, Lund, H Sverdrup, "Kalkning av rinnande vattenerfarenheter fran en fluidiserad kalk-brunn - MOVER", Pages 388-393, see fig 1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742593A (en) * 1985-09-12 1988-05-10 Coxwold (Proprietary) Ltd. Valve member for water interruption pool cleaner
US5993737A (en) * 1995-04-24 1999-11-30 Implico B.V. Stabilization of water
WO2001036336A1 (fr) * 1999-11-15 2001-05-25 Green Turtle Technologies Ltd. DISPOSITIF D'AUGMENTATION DU pH D'UN COURANT AQUEUX
GB2371541A (en) * 1999-11-15 2002-07-31 Green Turtle Technologies Ltd Device for increasing pH of an aqueous stream
GB2371541B (en) * 1999-11-15 2003-12-10 Green Turtle Technologies Ltd Device for increasing pH of an aqueous stream
US7378016B2 (en) 1999-11-15 2008-05-27 Green Turtle Americas Ltd. Device for increasing pH of an aqueous stream

Also Published As

Publication number Publication date
FI81076C (fi) 1990-09-10
FI851794L (fi) 1985-05-07
DE3490415T1 (de) 1985-10-03
FI81076B (fi) 1990-05-31
SE447819B (sv) 1986-12-15
DE3490415C2 (de) 1995-12-07
GB2157671B (en) 1987-10-14
SE8304991L (sv) 1985-03-17
SE8304991D0 (sv) 1983-09-16
GB2157671A (en) 1985-10-30
FI851794A0 (fi) 1985-05-07
GB8510945D0 (en) 1985-06-05

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