DE428486C - Process for the utilization of waste water from bleaching earth factories u. like - Google Patents
Process for the utilization of waste water from bleaching earth factories u. likeInfo
- Publication number
- DE428486C DE428486C DEM88709D DEM0088709D DE428486C DE 428486 C DE428486 C DE 428486C DE M88709 D DEM88709 D DE M88709D DE M0088709 D DEM0088709 D DE M0088709D DE 428486 C DE428486 C DE 428486C
- Authority
- DE
- Germany
- Prior art keywords
- earth
- factories
- waste water
- bleaching earth
- sewage
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/025—Thermal hydrolysis
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- 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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Removal Of Specific Substances (AREA)
Description
Verfahren zur Nutzbarmachung der Abwässer von Bleicherdefabriken u. dgl. Der sich mit dem Aufschluß kieselsäurehaltiger Erden befassenden Industrie, insbesondere den Bleicherdefabriken, verursacht die Beseitigung und Unschädlichmachung der anfallenden Abwässer große Schwierigkeiten und Kosten. Die Abwässer bestehen im allgemeinen aus einem Gemisch der der Aufschlußsäure entsprechenden Aluminium-, Eisen-und eventuell auch Magnesium-, Kalk- und anderer Salze mit freien Säureresten und Wasser, und sie besitzen noch starke chemische Energien, die bisher unter Kostenaufwand vernichtet werden müssen.Process for utilizing the wastewater from bleaching earth factories u. The industry dealing with the digestion of siliceous earths, especially the bleaching earth factories, causing the removal and rendering harmless the resulting wastewater great difficulties and costs. The sewage persists generally from a mixture of the aluminum, Iron and possibly also magnesium, lime and other salts with free acid residues and water, and they still have strong chemical energies that were previously at cost must be destroyed.
Sie nutzbar zu machen bezweckt das vorstehende Verfahren. Versuche haben gezeigt, daß dies leicht gelingt durch Einbringung von Holzabfällen j eder Art (Späne, Sägemehl u. dgl.), ferner von Torf oder Sulfitcellulose in die von der aufgeschlossenen Erde getrennten Abwässer oder in das Gemisch von aufgeschlossener Erde und Abwässern mitnachfolgender Kochung eventuell bei erhöhter Temperatur und entsprechendem Druck. Dabei werden aus dem Gemisch große Mengen von Methylalkohol und wertvoller Essigsäure frei unter gleichzeitiger, von Druck und Temperatur abhängiger mehr oder weniger vollkommener Verkohlung der organischen Substanzen. Während erstere wertvolle Nebenprodukte darstellen, kann die anfallende Kohle entweder als Absorptionsmasse oder als Heizstoff Verwertung finden. Letzteres ist das vorteilhaftere, wenn die Abwässer vor der Einbringung der organischen Substanzen vom Ton getrennt werden. Andernfalls werden Ton und Kohle gemeinsam ausgewaschen, gemahlen und als Bleicherde verwertet.The above procedure aims to make it usable. try have shown that this can easily be achieved by bringing in wood waste Kind (shavings, sawdust, etc.), also of peat or sulphite cellulose in that of the digested soil separate sewage or in the mixture of digested Earth and sewage with subsequent boiling possibly at elevated temperature and appropriate pressure. The mixture turns into large amounts of methyl alcohol and valuable acetic acid free under simultaneous pressure and temperature dependent more or less complete charring of the organic substances. While the former represent valuable by-products, the resulting coal can either be used as an absorption mass or can be used as heating fuel. The latter is the more advantageous when the Waste water must be separated from the clay before the organic substances are introduced. Otherwise, clay and coal are washed out together, ground and used as bleaching earth recovered.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM88709D DE428486C (en) | 1925-03-03 | 1925-03-03 | Process for the utilization of waste water from bleaching earth factories u. like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM88709D DE428486C (en) | 1925-03-03 | 1925-03-03 | Process for the utilization of waste water from bleaching earth factories u. like |
Publications (1)
Publication Number | Publication Date |
---|---|
DE428486C true DE428486C (en) | 1926-05-05 |
Family
ID=7321100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM88709D Expired DE428486C (en) | 1925-03-03 | 1925-03-03 | Process for the utilization of waste water from bleaching earth factories u. like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE428486C (en) |
-
1925
- 1925-03-03 DE DEM88709D patent/DE428486C/en not_active Expired
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