DE394360C - Process for the complete or partial elimination of salts from water by electroosmotic means - Google Patents
Process for the complete or partial elimination of salts from water by electroosmotic meansInfo
- Publication number
- DE394360C DE394360C DEE27807D DEE0027807D DE394360C DE 394360 C DE394360 C DE 394360C DE E27807 D DEE27807 D DE E27807D DE E0027807 D DEE0027807 D DE E0027807D DE 394360 C DE394360 C DE 394360C
- Authority
- DE
- Germany
- Prior art keywords
- water
- salts
- complete
- electroosmotic
- partial elimination
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 5
- 230000008030 elimination Effects 0.000 title claims description 3
- 238000003379 elimination reaction Methods 0.000 title claims description 3
- 150000003839 salts Chemical class 0.000 title claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 5
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 5
- 239000008237 rinsing water Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/427—Electro-osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/22—Electrical effects
- B01D2321/226—Interruption of electric currents
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
Verfahren zur vollständigen oder teilweisen Beseitigung von Salzen aus Wasser auf elektroosmotischem Wege.Process for the total or partial elimination of salts from water in an electroosmotic way.
Zusatz zum Patent 383666. Addendum to patent 383666.
In Weiterbildung des im Hauptpatent 383666 beschriebenen Verfahrens wurde gefunden, daß sich auch reine Karbonatwässer elektroosmotisch entsalzen lassen. Bei reinen Karbonatwässern liegt immer die Gefahr einer Ausscheidung von unlöslichem Monokarbonat im Mittelraum des Dreizellenapparates vor. Sie lassen sich jedoch elektroosmotisch entsalzen, wenn man zunächst die Karbonate aus der ersten Wassermenge, die durch den Apparat fließt, mit einer den Karbonaten äquivalenten Menge Schwefelsäure versetzt, wodurch diese in Sulfate umgewandelt werden. r Dieses sulfatlaa} tige Wasser wird nun im Nilittelraumt lektrEoosmnse unterworfen. In a further development of the process described in the main patent 383666 it has been found that pure carbonate water can also be desalinated electroosmotically. With pure carbonate water there is always the risk of the excretion of insoluble substances Monocarbonate in the middle of the three-cell apparatus. However, they can be electroosmotic desalinate when you first remove the carbonates from the first amount of water that comes through the apparatus flows, an amount of sulfuric acid equivalent to the carbonates is added, through which these are converted into sulfates. This sulphate-containing water is now in the Nilittelraumt subject to electrE osmosis.
Es scheidet sich anodisch Schwefelsäure ab.Sulfuric acid is deposited anodically.
Diese setzt sich sofort in den Karbonaten des Spülwassers zu Sulfaten um so daß das Anodenwasser jetzt direkt in den Mittelraum fließen kann, wo die Entsalzung stattfindet und wo wieder die Abwanderung der Schwefelsäure anodisch erfolgt. Dieselbe Menge Schwefel-, säure führt also immer wieder von neuem die Karbonate in Sulfate über.This is immediately converted into sulfates in the carbonates of the rinse water so that the anode water can now flow directly into the central space where the desalination takes place takes place and where again the migration of sulfuric acid takes place anodically. Same Amount of sulfuric acid leads again and again to the carbonates in sulphates above.
Eine zur Ausübung des neuen Verfahrens geeignete Vorrichtung in schematischer Darstellung zeigen die Abb. I und 2. Die Vor-. richtung besteht aus dem Gefäß A, dem ElektroosmoseapparatM und einer Pumpe B. In dem Gefäß A wird dem Wasser eine seinem Karbonatgehalt äquivalente Menge Schwefelsäure zugesetzt und es dann dem Mittelraum des Osmoseapparates zugeführt. Die Anodenspülwassermenge wird so einreguliert, daß sie gleich ist der in der Zeiteinheit zufließenden Mittelraumwassermenge. Das abfließende Anodenwasser, das keine Karbonate, sondern nur noch Sulfate enthält, wird durch die Pumpe B in das Gefäß A befördert und fließt von dort direkt in den Mittelraum des Osmoseapparates. A device suitable for carrying out the new method in schematic form Fig. I and 2 show the illustration. direction consists of vessel A, the electroosmotic apparatus M and a pump B. In the vessel A, the water becomes a sulfuric acid equivalent to its carbonate content and then added to the Central area of the osmosis apparatus supplied. The amount of anode rinsing water is regulated in such a way that that it is equal to the amount of water flowing into the mean space in the unit of time. That draining anode water that does not contain carbonates but only sulfates, is conveyed by the pump B into the vessel A and flows from there directly into the Central space of the osmosis apparatus.
A Ausführungsbeispiel. A embodiment.
Es werden z. B. zu einem reinen Karbonatwasser, das 30 g Ca COa im Hektoliter gelöst enthalten möge, 30 g H2 SO (98 Prozent) zugesetzt. Das Wasser kann dann sofort dem Mittelraum zugeführt werden, wo die Zerlegung des gebildeten Gipses erfolgt. Es wandert SOA nach der Anode, wo nach der Entladung H2 SO, rückgebildet wird und, wenn die Anodenspülwassermenge gleich gewählt ist der durch den Mittelraum fließenden Wassermenge, dort wieder das Karbonat des Spülwassers zu Sulfat verwandelt. Das Anodenwasser wird durch die Pumpe B in den Mittelraum A befördert, von wo es wieder in den Mittelraum ! gelangt. There are z. B. to a pure carbonate water containing 30 g Ca COa im Hectoliters dissolved may contain 30 g H2 SO (98 percent) added. The water can then immediately be fed to the central space, where the decomposition of the formed Plaster of paris is done. SOA migrates to the anode, where H2 SO regresses after the discharge and, if the amount of anode rinsing water is selected to be the same, that through the central space flowing water, there again the carbonate of the rinse water is converted to sulfate. The anode water is conveyed by the pump B into the central space A, from where it back to the middle room! got.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE27807D DE394360C (en) | 1922-03-09 | 1922-03-09 | Process for the complete or partial elimination of salts from water by electroosmotic means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE27807D DE394360C (en) | 1922-03-09 | 1922-03-09 | Process for the complete or partial elimination of salts from water by electroosmotic means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE394360C true DE394360C (en) | 1924-04-26 |
Family
ID=7072942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE27807D Expired DE394360C (en) | 1922-03-09 | 1922-03-09 | Process for the complete or partial elimination of salts from water by electroosmotic means |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE394360C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848402A (en) * | 1949-04-12 | 1958-08-19 | Tno | Process for electrodialyzing liquids |
-
1922
- 1922-03-09 DE DEE27807D patent/DE394360C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848402A (en) * | 1949-04-12 | 1958-08-19 | Tno | Process for electrodialyzing liquids |
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