DE361741C - Process for the elimination of waste water, waste liquors or the like. - Google Patents

Process for the elimination of waste water, waste liquors or the like.

Info

Publication number
DE361741C
DE361741C DESCH51888D DESC051888D DE361741C DE 361741 C DE361741 C DE 361741C DE SCH51888 D DESCH51888 D DE SCH51888D DE SC051888 D DESC051888 D DE SC051888D DE 361741 C DE361741 C DE 361741C
Authority
DE
Germany
Prior art keywords
waste
elimination
waste water
liquors
evaporation
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
Application number
DESCH51888D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DESCH51888D priority Critical patent/DE361741C/en
Application granted granted Critical
Publication of DE361741C publication Critical patent/DE361741C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid

Description

Verfahren zur Beseitigung von Abwässern, Ablaugen o. dgl.Process for the disposal of waste water, waste liquors or the like.

Die Beseitigung gewerblicher und städtischer Abwässer bereitet Schwierigkeiten, wenn ein genügend aufnahmefähiger Vorfluter in der Nähe fehlt, und sie ist geradezu eine Lebensfrage für manche Industrien, z. B. neu entstehende Kaliwerke. Diesen wird die behördliche Genehmigung zur Ableitung ihrer Endlauge in vorhandene Wasserläufe meist nicht mehr erteilt, und sie sind auf deren künstliche Beseitigung angewiesen. Praktisch kann hierfür nur die Eindampfung in Betracht gezogen werden, und auch diese nur, wenn besonders günstige Verhältnisse vorliegen. Diese Art der Abwässerbeseitigung ist jedoch sehr teuer und drückt die Wirtschaftlichkeit der zu diesem Verfahren gezwungenen Unternehmungen sehr herab. The disposal of commercial and urban sewage creates difficulties if a sufficiently receptive receiving water is missing nearby, and it is downright a question of life for some industries, e.g. B. emerging potash works. This one becomes the official permit for the discharge of your final liquor into existing watercourses mostly no longer granted, and they are dependent on their artificial elimination. In practice, only evaporation can be considered for this, and also this only if the conditions are particularly favorable. This type of sewage disposal however, it is very expensive and depresses the economics of this process forced undertakings.

Meist scheitert überhaupt die Ausführbarkeit an der Kostenfrage, besonders auch weil das bei der Eindampfung aus den Abwässern anfallende Erzeugnis, z. B. das Chlormagnesium oder Chlorkalzium bei Kaliwerken oder Ammoniaksodafabriken, wegen der großen entstehenden Mengen unverkäuflich ist.Usually the feasibility fails at all because of the cost issue, especially also because the product resulting from evaporation from the wastewater, e.g. B. the magnesium chloride or calcium chloride in potash works or ammonia soda factories, because of the large quantities produced cannot be sold.

Gemäß der Erfindung wird nun eine Beseitigung der Abwässer durch Eindampfung dadurch zu wirtschaftlicher Ausführbarkeit gestaltet, daß durch eine besondere Durchbildung des Eindampfprozesses ein wertvolles Nebenerzeugnis gewonnen wird, für welches ständig großer Bedarf vorliegt, und des : sen Verwertungspreis die Kosten der Eindampfung deckt bzw. übersteigt. According to the invention, a disposal of the waste water is now carried out Evaporation designed to be economical feasibility that by a special development of the evaporation process, a valuable by-product is obtained is, for which there is always a great need, and its sale price covers or exceeds the cost of evaporation.

Der Erfindungsgedanke wird in der Weise durchgeführt, daß die Eindampfung der Abwässer mittels der an sich bekannten Unterwasserfeuerung geschieht, und daß insbesondere für die Verbrennung in dieser die Bedingungen so gestaltet werden, daß aus dem Stickstoff und dem Sauerstoff der Verbrennungsluft Stickoxyde in genügend hoher Ausbeute sich bilden. Zu dem Zweck läßt man eine durch einen geeigneten Brennstoff, z. The idea of the invention is carried out in such a way that the evaporation the wastewater happens by means of the known underwater firing, and that in particular for the incineration in this the conditions are designed in such a way, that from the nitrogen and the oxygen in the combustion air, nitrogen oxides are sufficient high yield. For this purpose, one is left with a suitable fuel, z.

Teeröl, Generatorgas o. dgl., und durch Preßluft gespeiste Stichflamme unter Druck beispielsweise in die in einem druckfesten Gefäß befindliche Kaliendlauge brennen. Bei gegenügend hoher, durch entsprechend große Brennstoffzufuhr bedingter Flarnmentemperatur, bei genügend hohem Druck, unter dem die Verbrennung vor sich geht, und besonders auch noch bei Anreicherung der Wrerbrennungsluft mit Sauerstoff verbrennt der Stickstoff der Verbrennungsluft zu Stickoxyd, welches beim Durchstreichen mit den übrigen Verbrennungsgasen durch die die Flamme allseitig umgebende Endlauge sofort abgeschreckt und dadurch an Rückbildung verhindert wird. Die auf diese Weise erzielte Ausbeute an Stickoxyden, die in bekannter Weise zu Salpetersäure oxydiert und schließ-- lich in salpetersaure Salze (z. B. Kalksalpeter) übergeführt werden, ist so groß, daß deren Wert die Kosten des Verfahrens reichlich deckt. Tar oil, generator gas or the like, and jet flame fed by compressed air under pressure, for example, in the potassium hydroxide solution in a pressure-tight vessel burn. With a sufficiently high fuel supply due to the correspondingly large fuel supply Flame temperature, at sufficiently high pressure, under which the combustion is in front of you goes, and especially when the combustion air is enriched with oxygen the nitrogen in the combustion air burns to form nitrogen oxide, which when passed through with the remaining combustion gases through the final liquor surrounding the flame on all sides immediately quenched and thus prevented from regression. That way achieved yield of nitrogen oxides, which oxidizes to nitric acid in a known manner and finally in nitric acid salts (e.g. calcium nitrate) convicted is so great that its value amply covers the cost of the procedure.

Durch diese Stickoxyde bildende Flamme wird gleichzeitig das Wasser aus den Abwässern verdampft und dadurch der Rückstand bis zu jeder gewünschten Konzentration ein geengt. This flame, which forms nitrogen oxides, simultaneously becomes the water evaporated from the wastewater and thereby the residue up to any desired concentration a narrowed.

Claims (1)

PATENT-ANSPRUCH: Verfahren zum Verdampfen von Abwässern, Ablaugen u. dgl., darin bestehend, daß man hierzu Tauchflammen verwendet, die in an sich bekannter Weise zur Erzeugung von Stickoxyden dienen. PATENT CLAIM: Process for evaporation of waste water, waste liquor and the like., In that one uses immersion flames for this purpose, which in itself known way for the production of nitrogen oxides are used.
DESCH51888D 1917-09-11 1917-09-11 Process for the elimination of waste water, waste liquors or the like. Expired DE361741C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH51888D DE361741C (en) 1917-09-11 1917-09-11 Process for the elimination of waste water, waste liquors or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH51888D DE361741C (en) 1917-09-11 1917-09-11 Process for the elimination of waste water, waste liquors or the like.

Publications (1)

Publication Number Publication Date
DE361741C true DE361741C (en) 1923-05-24

Family

ID=7436734

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH51888D Expired DE361741C (en) 1917-09-11 1917-09-11 Process for the elimination of waste water, waste liquors or the like.

Country Status (1)

Country Link
DE (1) DE361741C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10342885B2 (en) 2011-03-31 2019-07-09 Toyota Jidosha Kabushiki Kaisha Vehicular air cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10342885B2 (en) 2011-03-31 2019-07-09 Toyota Jidosha Kabushiki Kaisha Vehicular air cleaner

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