AT70582B - Process for clarifying water. - Google Patents
Process for clarifying water.Info
- Publication number
- AT70582B AT70582B AT70582DA AT70582B AT 70582 B AT70582 B AT 70582B AT 70582D A AT70582D A AT 70582DA AT 70582 B AT70582 B AT 70582B
- Authority
- AT
- Austria
- Prior art keywords
- water
- clarifying
- clarifying water
- addition
- magnesia
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 159000000014 iron salts Chemical class 0.000 claims description 3
- 239000008395 clarifying agent Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Klärung von Wasser.
Bei der bekannten Klärung des Wassers mit schwefelsaurer Tonerde, wie solche sowohl für Trinkwasser als auch für industrielle Zwecke bei Schnellfilteranlagen in Anwendung kommt, besteht der Übelstand, dass bei Wässern, welche nur eine geringe temporäre Härte habenund dies ist bei den in Frage kommenden Oberflächenwässern sehr häufig der Fall - keine genügende Flockenbildung eintritt, um besonders bei grösserem Schlammgehalt des Wassers diese in solcher Menge zu erzeugen, dass sie den Schlamm zu Boden zu reissen vermögen. Ausserdem tritt die Reaktion bei geringer temporärer Härte des Wassers nur langsam ein und waren daher bisher grosse und teure Vorkläranlagen erforderlich.
Um diesem Übelstande abzuhelfen, ist es auch bekannt, als Klärmittel Aluminium- oder eisensalze mit einem gleichzeitigen Zusatz von Kalkwasser zu kombinieren, um eine stärkere Flockenbildung und raschere Reaktion zu erzielen.
EMI1.1
ihrer Schwerlöslichkeit bedarf der Zusatz der kohlensauren Magnesia keiner besonderen Vorrichtung, da dieselbe auch in fester Form dem Wasser zugeführt werden kann, wobei vom Wasser nur die zur Umsetzung mit Aluminiumsulfat erforderlichen geringen Mengen rasch aufgelöst werden. Die Verwendung von kohlensaurer Magnesia ist auch hygienisch vollkommen einwandfrei. da diese auch einen natürlichen Bestandteil des Wassers bildet, und man hat auf diese Weise
EMI1.2
PATENT-ANSPRÜCHE : l. Verfahren zur Klärung und Entfärbung von Wasser. dadurch gekennzeichnet, dass letzterem nebst den als Klärmittel bekannten Aluminiumsalzen, Eisensalzen oder dg !, kohlensaure Magnesia zugeführt wird, und zwar je nach der Beschaffenheit des Wassers einige Zeit vor oder nach der Zuführung der Reaktionssalze oder gleichzeitig mit einem Teil der letzteren, während deren Rest erst später zugeführt wird.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for clarifying water.
In the known clarification of the water with sulphate of alumina, such as those used for drinking water as well as for industrial purposes in quick filter systems, there is the disadvantage that with waters that have only a low temporary hardness and this is very important for the surface waters in question This is often the case - there is insufficient floc formation to produce such amounts, especially when the water has a large sludge content, that it is able to pull the sludge to the ground. In addition, the reaction occurs only slowly if the temporary hardness of the water is low, and so large and expensive pre-treatment plants have been required up to now.
In order to remedy this disadvantage, it is also known to combine aluminum or iron salts as a clarifying agent with the simultaneous addition of lime water in order to achieve stronger flocculation and faster reaction.
EMI1.1
The addition of carbonate magnesia does not require any special device because of its poor solubility, since it can also be added to water in solid form, only the small amounts of water required for reaction with aluminum sulfate being rapidly dissolved. The use of carbonate magnesia is also perfectly hygienic. since this is also a natural part of the water, and you have that way
EMI1.2
PATENT CLAIMS: l. Process for clarifying and decolorizing water. characterized in that the latter is fed in addition to the aluminum salts, iron salts or dg!, carbonic acid magnesia known as clarifying agents, depending on the nature of the water some time before or after the feed of the reaction salts or simultaneously with part of the latter, while the rest is fed later.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT70582T | 1913-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT70582B true AT70582B (en) | 1915-11-25 |
Family
ID=3592329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT70582D AT70582B (en) | 1913-08-22 | 1913-08-22 | Process for clarifying water. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT70582B (en) |
-
1913
- 1913-08-22 AT AT70582D patent/AT70582B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0056850B1 (en) | Method of partial demineralization of waters by combining weak acid and basic ion-exchanger material and following ion-exchanger material regeneration | |
| EP2808306B1 (en) | Means for biological purification of municipal waste water | |
| DE2157684A1 (en) | Process for purifying raw sodium chloride brines | |
| DE2317968A1 (en) | METHOD OF TREATMENT OF WASTEWATER | |
| DE2334766C3 (en) | Process for the treatment of waste water containing organic water-insoluble substances in emulsified form | |
| DE69212289T2 (en) | Metal sulfates as flocculants for wastewater treatment and their production | |
| DE3904575A1 (en) | METHOD FOR ELIMINATING PHOSPHATES AND ORGANICALLY BONDED PHOSPHORUS FROM WASTEWATERS AND ACCUMULATORS | |
| CH538999A (en) | Activated sludge wastewater treatment process | |
| DE2118486A1 (en) | Process for purifying water that contains organic substances | |
| AT70582B (en) | Process for clarifying water. | |
| DE2524172A1 (en) | IMPROVED PROCEDURE FOR WATER, SEWAGE AND SLUDGE TREATMENT WITH FLOCKING AGENTS | |
| DE881779C (en) | Process for improving the taste and smell of contaminated, especially chlorinated, water | |
| DE3908054A1 (en) | Process for the preparation of a flocculant | |
| DE2112271A1 (en) | Method and device for avoiding the discharge of used pickling liquid and for obtaining useful chemicals from it | |
| DE3004121A1 (en) | METHOD FOR CHEMICAL CLEANING OF WATER CONTAINING SOLVED ORGANIC IMPURITIES | |
| DE2253509A1 (en) | METHODS FOR TREATMENT OF POLLUTED WATER | |
| DE2921329A1 (en) | SENSITIZED FLOCCULATING AGENT FOR FLOCKING HYDROPHILIC COLLOIDAL PARTICLES AND USING THESE | |
| DE2164240A1 (en) | PROCESS FOR PREVENTING ADAPTATION ON HEATED SURFACES AND COMBINATION OF MATERIALS FOR PERFORMING THE PROCESS | |
| DE2627781C2 (en) | Biological-chemical process for wastewater treatment with dephosphating | |
| DE1131193B (en) | Process for concentrating and desalting dilute, salty sulfuric acid | |
| AT378166B (en) | METHOD FOR PREVENTING THE CONDENSATION OF ADHESIVE MIXTURES | |
| DE855520C (en) | Process for the chemical cleaning of alkaline waste water | |
| DE599986C (en) | Process for cleaning up pickling liquor | |
| DE371601C (en) | Process for cleaning or refining alkaline earth carbonates and magnesium carbonate | |
| CH431459A (en) | Process for separating liquids, in particular emulsions or waste water, into liquid and sludge-like components |