ES8201108A1 - Partial decarbonation of water - by calcium carbonate pptn. on crystallisation nuclei under reduced pressure - Google Patents

Partial decarbonation of water - by calcium carbonate pptn. on crystallisation nuclei under reduced pressure

Info

Publication number
ES8201108A1
ES8201108A1 ES490055A ES490055A ES8201108A1 ES 8201108 A1 ES8201108 A1 ES 8201108A1 ES 490055 A ES490055 A ES 490055A ES 490055 A ES490055 A ES 490055A ES 8201108 A1 ES8201108 A1 ES 8201108A1
Authority
ES
Spain
Prior art keywords
water
pptn
reduced pressure
under reduced
decarbonation
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.)
Expired
Application number
ES490055A
Other languages
Spanish (es)
Other versions
ES490055A0 (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.)
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 ES490055A0 publication Critical patent/ES490055A0/en
Publication of ES8201108A1 publication Critical patent/ES8201108A1/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
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Water Treatment By Sorption (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Partial decarbonation of water (esp. drinking water) is effected by pptn. and removal of CaCO3. The improvement comprises effecting decarbonation in the presence of crystn. nuclei under reduced pressure. The process is pref. carried out by filtering the water through a bed of granular solids, pref. comprising a CaCO3-contg. material (esp. high-purity limestone) in the form of trigonal crystals, pref. with a particle size of 0.8-2 mm. A vacuum of 30-100 (esp. 30-50) mmHg is applied below the bed, and a partial vacuum can also be applied above the bed. Compared with Ca(OH)2 treatment, the process is less expensive to operate and does not significantly reduce the Mg content of the water.
ES490055A 1979-04-03 1980-03-28 Partial decarbonation of water - by calcium carbonate pptn. on crystallisation nuclei under reduced pressure Expired ES8201108A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792913287 DE2913287C2 (en) 1979-04-03 1979-04-03 Process and device for partial decarbonization of water

Publications (2)

Publication Number Publication Date
ES490055A0 ES490055A0 (en) 1980-12-01
ES8201108A1 true ES8201108A1 (en) 1980-12-01

Family

ID=6067282

Family Applications (1)

Application Number Title Priority Date Filing Date
ES490055A Expired ES8201108A1 (en) 1979-04-03 1980-03-28 Partial decarbonation of water - by calcium carbonate pptn. on crystallisation nuclei under reduced pressure

Country Status (3)

Country Link
DE (1) DE2913287C2 (en)
ES (1) ES8201108A1 (en)
FR (1) FR2453114B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317848A1 (en) * 1983-05-17 1984-11-22 Stausberg, Maria Klara, 5222 Morsbach Filtration apparatus for drinking water treatment for travel purposes or the like
DE4200916C2 (en) * 1992-01-16 1995-07-06 Klaus Dipl Ing Kratzenstein Process for the partial decarbonization of water
FR2700324B1 (en) * 1993-01-11 1995-03-24 Epuration Ste Europ Process for continuous decarbonation and descaling of raw calcareous water at neutral pH as well as installation for the implementation of this process.
DE10200194A1 (en) * 2002-01-04 2003-07-17 Trt S & A Ingenieurbuero Gmbh Apparatus for continuously softening drinking water in a vacuum comprises a vacuum unit and connected to a softening unit either directly or through a pipe system
DE102014101132B4 (en) 2014-01-30 2023-11-02 Perma-Trade Wassertechnik Gmbh Descaling device and method for descaling water

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211200C (en) *
AT74198B (en) * 1915-02-13 1918-02-25 Heinrich Wehner Device for degassing, de-icing, removing manganese and softening water and aqueous liquids.
BE517797A (en) * 1952-02-22

Also Published As

Publication number Publication date
FR2453114A1 (en) 1980-10-31
ES490055A0 (en) 1980-12-01
DE2913287C2 (en) 1986-05-22
DE2913287A1 (en) 1980-10-16
FR2453114B1 (en) 1985-11-22

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