AT106972B - Method of making a fertilizer from silt. - Google Patents
Method of making a fertilizer from silt.Info
- Publication number
- AT106972B AT106972B AT106972DA AT106972B AT 106972 B AT106972 B AT 106972B AT 106972D A AT106972D A AT 106972DA AT 106972 B AT106972 B AT 106972B
- Authority
- AT
- Austria
- Prior art keywords
- silt
- fertilizer
- making
- desc
- peat
- Prior art date
Links
- 239000003337 fertilizer Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000126 substance Substances 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000003415 peat Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
- 235000014676 Phragmites communis Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung eines Diingemittels aus Schlick.
Es ist bekannt, dass der Schlick der Salz-und Süsswasser einen hohen Düngewert hat. Besonders der l\1eeresschlick wird seit langer Zeit in vielen Küstenorten als Dünger benutzt. Sein hoher Wassergehalt steht aber einem Versand auf grösseren Strecken entgegen. Um den Meeresschlick in weiteren Kreisen als Düngemittel zugänglich machen zu können, ist es daher erforderlich, ihn möglichst von seinem Wassergehalt zu befreien. Diese Aufgabe bietet aber Schwierigkeiten. Versucht man, den Schlick bei Temperaturen über 300 C zu trocknen, so tritt an seiner Oberfläche eine Krustenbildung ein, die den Austritt des Wassergehaltes aus seinem Innern erschwert.
Um ein vollständiges Austrocknen des Schlicks zu erreichen, müssten daher sehr hohe Temperaturen angewendet werden. Hiebei würden aber die wertvollen, ursprünglich kolloidalen Eigenschaften des Schlicks verlorengehen. Es entsteht bei solchen Temperaturen eine bröckelige Masse von zementartiger Beschaffenheit, in welcher die kolloidale Form der bis zu 40% und darüber im Selhliek enthaltenen Kiesel- säure grösstenteils zerstört ist. Auch die wertvollen Bakterien des Schlicks werden bei Anwendung hoher Temperaturen vernichtet.
Gemäss vorliegender Erfindung geschieht das Austrocknen des Schlicks ohne Anwendung hoher Temperaturen dadurch, dass er mit Torf oder anderen geeigneten humosen Stoffen, eventuell diese in hydrolysierter Form, wie bekannt, herzustellen mittels chemischer Solventien, Druck und Erhitzung,
EMI1.1
seine wertvollen Eigenschaften zu beeinträchtigen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the manufacture of a detergent from silt.
It is known that the silt of salt and fresh water has a high fertilizer value. The sea silt in particular has been used as fertilizer in many coastal towns for a long time. However, its high water content prevents it from being shipped over longer distances. In order to be able to make the sea silt available as fertilizer in wider circles, it is therefore necessary to free it of its water content as far as possible. But this task presents difficulties. If you try to dry the silt at temperatures above 300 C, a crust formation occurs on its surface, which makes it difficult for the water content to escape from its interior.
In order to achieve complete drying out of the silt, very high temperatures would therefore have to be used. In doing so, however, the valuable, originally colloidal properties of the silt would be lost. At such temperatures, a crumbly mass of cement-like consistency is created in which the colloidal form of the silica contained in the Selhliek up to 40% and above is largely destroyed. The valuable bacteria in the silt are also destroyed when high temperatures are used.
According to the present invention, the silt is dried out without the use of high temperatures by making it with peat or other suitable humic substances, possibly in hydrolyzed form, as known, by means of chemical solvents, pressure and heating,
EMI1.1
impairing its valuable properties.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT106972T | 1923-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT106972B true AT106972B (en) | 1927-08-10 |
Family
ID=3624074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT106972D AT106972B (en) | 1923-05-26 | 1923-05-26 | Method of making a fertilizer from silt. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT106972B (en) |
-
1923
- 1923-05-26 AT AT106972D patent/AT106972B/en active
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