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 pressureInfo
- 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
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.
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)
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)
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 |
-
1979
- 1979-04-03 DE DE19792913287 patent/DE2913287C2/en not_active Expired
-
1980
- 1980-03-28 ES ES490055A patent/ES8201108A1/en not_active Expired
- 1980-04-02 FR FR8007496A patent/FR2453114B1/en not_active Expired
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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