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DE116760C - - Google Patents

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Publication number
DE116760C
DE116760C DE1899116760D DE116760DA DE116760C DE 116760 C DE116760 C DE 116760C DE 1899116760 D DE1899116760 D DE 1899116760D DE 116760D A DE116760D A DE 116760DA DE 116760 C DE116760 C DE 116760C
Authority
DE
Germany
Prior art keywords
sludge
lime
value
water
quicklime
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 - Lifetime
Application number
DE1899116760D
Other languages
German (de)
Filing date
Publication of DE116760C publication Critical patent/DE116760C/de
Application filed filed Critical
Priority to AT4111D priority Critical patent/AT4111B/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F5/00Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
    • C05F5/006Waste from chemical processing of material, e.g. diestillation, roasting, cooking
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00Calcareous fertilisers
    • C05D3/02Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Botany (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Vorliegende Erfindung besteht in einem Verfahren, den bei der Rohzuckerfabrikation abfallenden Scheideschlamm zu trocknen, bei dessen Anwendung der Düngerwerth des getrockneten Scheideschlammes durch das Trockenmittel erhöht wird.The present invention consists in a method which is wasted in the manufacture of raw sugar To dry separating sludge, in its application the fertilizer value of the dried one Separation sludge is increased by the desiccant.

Der bei der Rohzuckerfabrikation als Abfallproduct sich ergebende Scheideschlamm besteht aus etwa 40 pCt. ■ kohlensaurem Kalk, 10 pCt. organischer Substanz, Phosphorsäure und Stickstoff und 50 pCt. Wasser. Allein wegen seines Gehalts an Phosphorsäure und Stickstoff repräsentirt er einen durchschnittlichen Düngewerth von etwa 50 Pfennig pro Centner, während sein Gehalt an organischer Substanz und besonders an kohlensaurem Kalk für fast alle Rüben producirenden Bodenarten von hoher Wichtigkeit ist, so dafs sein gesammter landwirthschaftlicher Werth mit etwa 60 Pfennig pro Centner nicht zu hoch veranschlagt ist. Diesen Werth vermindert aber wesentlich sein hoher Wassergehalt und die dadurch herbeigeführte schwierige Theilbarkeit. Die 50 pCt. Wasser sind ein werthloser Ballast, der obendrein den Transport wesentlich vertheuert, und bedingen eine schmierige, klumpige Beschaffenheit, welche eine feine Vertheilung in der Ackerkrume unmöglich macht. Diese feine Vertheilung ist aber, um eine düngende Wirkung des Scheideschlammes herbeizuführen, durchaus erforderlich (vgl. Stohmann, Handbuch der Zuckerfabrikation, III. Auflage, S. 248).The one in raw sugar production as a waste product the resulting sludge consists of about 40 pCt. ■ carbonate of lime, 10 pct. organic matter, phosphoric acid and nitrogen and 50 pCt. Water. Alone because of its phosphoric acid and nitrogen content, it represents an average Fertilizer value of about 50 pfennigs per cent, while its organic matter content and especially on carbonate of lime for almost all types of beet-producing soils of high quality It is important that its entire agricultural value is about 60 pfennigs per centner is not overestimated. This value, however, is essentially diminished high water content and the difficult divisibility it brings about. The 50 pCt. Water is a worthless ballast, which on top of that makes transport much more expensive, and cause a greasy, lumpy texture, which is a fine distribution in the Makes arable tops impossible. This fine distribution is, however, in order to have a fertilizing effect to bring about the separation sludge is absolutely necessary (cf. Stohmann, Handbuch sugar production, III. Edition, p. 248).

Aber alle Verfahren, eine gute Theilbarkeit des Scheideschlammes herbeizuführen, wie Trocknen an der Luft, Kompostiren,. Gefrierenlassen, sind wegen der grofsen, mit Handarbeit zu bewältigenden Menge zu theuer und zu sehr von dem Wetter abhängig.But all methods of bringing about good divisibility of the sludge, such as Air drying, composting. Freezing, because of the large size, are manual labor The amount to be handled is too expensive and too dependent on the weather.

Das neue Verfahren ist dadurch gekennzeichnet, dafs auf maschinellem Wege jede beliebige Menge billig bewältigt werden kann und das Trockenmittel, der gebrannte Kalk, den Düngewerth des getrockneten Scheideschlammes erhöht. Das Verfahren selbst beruht auf der energischen chemischen Verwandtschaft des gebrannten Kalkes zum Wasser und besteht in folgendem Vorgange:The new method is characterized by the fact that any quantity can be handled cheaply by machine and the desiccant, the quick lime, the fertilizer value of the dried sludge elevated. The process itself is based on the energetic chemical relationship of the fired Lime to the water and consists in the following process:

Der im Rohzuckerfabrikbetrieb abfallende Scheideschlamm wird in einer geeigneten Mischoder Knetmaschine mit zerkleinertem, gebrannten Kalk versetzt. Der gebrannte Kalk entzieht dabei dem Schlamm begierig Wasser und bildet damit Calciumhydroxyd, wobei eine so grofse Wärmeentwickelung stattfindet, dafs eine weitere Menge des Wassers des Scheideschlammes verdampft wird und der Scheideschlamm selbst mit dem Calciumhydroxyd ein trockenes, feines, streubares Pulver bildet. Je nach dem Wassergehalt des zu trocknenden Scheideschlammes ist es möglich, mit 1 Gewichtstheil gebrannten Kalkes 5, 6 und mehr Gewichtstheile des Schlammes zu trocknen. Der verwendete Kalk bezw. sein Hydroxyd ist selbst ein werthvolles Düngemittel und erhöht durch seine Beimischung den Werth des getrockneten Scheideschlainmes. Das trockene,The sludge falling in the raw sugar factory is mixed in a suitable mixer or Kneading machine mixed with crushed, quicklime. The quick lime eagerly draws water from the sludge and with it forms calcium hydroxide, so great a heat development takes place that a further amount of the water of the separating sludge is evaporated and the separating sludge itself with the calcium hydroxide forms a dry, fine, scatterable powder. Depending on the water content of the to be dried Separation sludge it is possible with 1 part by weight of quicklime 5, 6 and more To dry parts by weight of the mud. The lime used respectively. its hydroxide is itself a valuable fertilizer, and increases the value of the dried one by its admixture Divorcee schlainmes. The dry,

fertige Product kann in Säcken transportirt und mittelst Hand oder Maschine auf dem Acker ausgestreut werden.The finished product can be transported in sacks and carried by hand or machine Fields to be scattered.

Es ist bereits allgemein bekannt, gebrannten Kalk als Trockenmittel ζ. B. für Mergel, Kalkschlamm u. dergl. zu benutzen, jedoch ist gebrannter Kalk zum Trocknen des Scheideschlammes der Zuckerfabrikation noch nicht vorgeschlagen worden. Hier verfolgt er nicht nur den Zweck des Trocknens, sondern erhöht, wie bereits bemerkt, den Düngewerth des Scheideschlammes und, was noch wesentlicher ist, bewahrt ihn vor Fermentation, welche bei dem sonst in Haufen gelagerten, nassen Scheideschlamm nicht zu vermeiden ist.It is already well known that quicklime is used as a desiccant ζ. B. for marl, lime sludge and the like, but quick lime is used to dry the sludge has not yet been proposed for sugar production. Here he not only pursues the purpose of drying, but increases, as already noted, the fertilizer value of the sludge and, what is still more essential saves it from fermentation, which is the case with the wet ones, which are otherwise stored in heaps Separation sludge cannot be avoided.

Claims (1)

Patent-Anspruch: \Patent claim: \ Verfahren zum Trocknen des bei der Rohrzuckerfabrikation sich ergebenden Scheideschlammes, dadurch gekennzeichnet, dafs der Scheideschlamm mit gebranntem Kalk vermischt wird, wodurch Wasser gebunden und verdampft und wodurch der Scheideschlamm selbst in ein streubares Pulver übergeführt wird, dessen Düngewerth durch das gebildete Calciumhydroxyd erhöht wird.Process for drying the sludge resulting from cane sugar production, characterized in that the sludge is mixed with quicklime, thereby binding water and evaporates and converts the sludge itself into a scatterable powder whose fertilizer value is increased by the calcium hydroxide formed.
DE1899116760D 1899-08-30 1899-08-30 Expired - Lifetime DE116760C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT4111D AT4111B (en) 1899-08-30 1900-07-09

Publications (1)

Publication Number Publication Date
DE116760C true DE116760C (en)

Family

ID=386081

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1899116760D Expired - Lifetime DE116760C (en) 1899-08-30 1899-08-30

Country Status (1)

Country Link
DE (1) DE116760C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741782C (en) * 1941-04-24 1943-11-17 Bernhard Ambros Process for the production of a non-dusting fertilizer by drying separating sludge
BE1004401A5 (en) * 1989-08-29 1992-11-17 Raffinerie Tirlemontoise Sa Fertiliser based on sugar factory dross, preparation method and use of same
WO2002054854A1 (en) * 2001-01-12 2002-07-18 David Lindsay Dodd Treatment of sugar lime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741782C (en) * 1941-04-24 1943-11-17 Bernhard Ambros Process for the production of a non-dusting fertilizer by drying separating sludge
BE1004401A5 (en) * 1989-08-29 1992-11-17 Raffinerie Tirlemontoise Sa Fertiliser based on sugar factory dross, preparation method and use of same
WO2002054854A1 (en) * 2001-01-12 2002-07-18 David Lindsay Dodd Treatment of sugar lime

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