DE2545862A1 - Thermal separation of solids from waste water - by evaporation in heated collecting tanks - Google Patents

Thermal separation of solids from waste water - by evaporation in heated collecting tanks

Info

Publication number
DE2545862A1
DE2545862A1 DE19752545862 DE2545862A DE2545862A1 DE 2545862 A1 DE2545862 A1 DE 2545862A1 DE 19752545862 DE19752545862 DE 19752545862 DE 2545862 A DE2545862 A DE 2545862A DE 2545862 A1 DE2545862 A1 DE 2545862A1
Authority
DE
Germany
Prior art keywords
solids
thermal separation
waste water
collecting tanks
wastewater
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.)
Pending
Application number
DE19752545862
Other languages
German (de)
Inventor
Hubert Herpers
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.)
IMP IND MONTAGEN und PLANUNGSG
Original Assignee
IMP IND MONTAGEN und PLANUNGSG
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 IMP IND MONTAGEN und PLANUNGSG filed Critical IMP IND MONTAGEN und PLANUNGSG
Priority to DE19752545862 priority Critical patent/DE2545862A1/en
Publication of DE2545862A1 publication Critical patent/DE2545862A1/en
Pending legal-status Critical Current

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
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048—Purification of waste water by evaporation

Abstract

Method is carried out by evaporating the waste water in heated collecting tanks, to separate the solid and liquid constituents. The method may be performed in conjunction with utilisation of waste heat from refuse incinerator plants. Depending on the content of noxious substances, the steam which is given off is drawn off either directly or via gas scrubbers, and blown off into the atmos. The method may be used for process water in the electroplating, pickling and certain other industries, at low cost. As the solids content of these process waters is generally 10%, the quantity which has to be eliminated without pollution is considerably reduced. Sepn. is carried out in a single stage without the use of additional chemicals. The steam may be re-condensed and recycled.

Description

Titel: Verfahren zur thermischen Trennung von FeststoffenTitle: Process for the thermal separation of solids

aus Abwasser. from sewage.

Anwendungsgebiet: Die Erfindung betrifft ein Verfahren zur thermischen Trennung von Feststoffen aus Abwasser wie sie z.B. bei Galvanikbetrieben, Beizereien und bestimmten Produktionen anfallen.Field of application: The invention relates to a method for thermal Separation of solids from wastewater, e.g. in electroplating plants, pickling plants and certain productions.

Zweck: Das Verfahren soll eine wirtschaftlishe, schadlose Vernichtung von Sonderabfällen in Abwässern aus Produktionen, Beizereien und Galvanikbetrieben ermöglichen Stand der Technik: Die Entgiftung von Abwässern mittels Ionenaustauschern und die Neutralisation auf chemischem Wege sind bekannte Verfahren um giftige Abwässer zu entgiften und Säuren und Laugen zu neutralisieren.Purpose: The procedure is intended to be an economic, harmless destruction of hazardous waste in wastewater from production, pickling and electroplating plants enable state-of-the-art technology: the detoxification of waste water using ion exchangers and chemical neutralization are known methods of toxic waste water to detoxify and to neutralize acids and alkalis.

Kritik des Standes der Technik: Die Entgiftung mittels Ionentauscher erfordert investitions und betriebskosteaufwendige Anlagen. Die Neutralisation und Spaltung auf chemischem Wege erfordert weitere Chemikalien und geschultes Fachpersonal.Criticism of the state of the art: detoxification using ion exchangers requires systems that are expensive to invest and operate. The neutralization and Chemical splitting requires additional chemicals and trained professionals.

Nach der Entgiftung muß das Wasser noch z.B. mittels Filterpressen von den festen Bestandteilen getrennt werden. Bei der chemischen Neutralisation müssen zusätzliche Chemikalien verwandt werden, die U.U. die Menge des Rückstandes noch erhöhen. After the detoxification, the water has to be filtered through a filter press, for example separated from the solid components. In chemical neutralization additional chemicals must be used, depending on the amount of residue still increase.

Eine Trennung der festen Bestandteile vom Wasser ist ein zusätzlicher Verfahrensgang. A separation of the solid components from the water is an additional one Procedure.

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde die vorgenannten Nachteile der Entgiftung durch Ionentauscher sowie der chemischen Spaltung und Neutralisation aus Abwasser in didem Verfahrensgang wirtschaftlich zu ermöglichen.Task: The invention is based on the above-mentioned task Disadvantages of detoxification by ion exchangers as well as chemical splitting and neutralization economically from wastewater in the process.

Lösung: Die Aufgabe wird erfindungsmäßig dadurch gelöst, daß wässrige Abfallprodukte in beheizbaren Becken oder Tanks gesammelt werden. Durch Erhitzen der Flüssigkeiten über 100 Grad C wird das Wasser verdampft. Der Wasserdampf wird je nach Inhalt an Schadstoffen entweder direkt oder über Gaswäscher angesaugt und in die Atmosphäre abgeblasen.Solution: According to the invention, the object is achieved in that aqueous Waste products are collected in heated basins or tanks. By heating of liquids above 100 degrees C, the water is evaporated. The water vapor will Depending on the content of pollutants, either drawn in directly or via a gas scrubber and blown into the atmosphere.

Weitere tusgestaltung der Erfindung: Es wird zur Erwärmung bzw. Verdampfung der Flüssigkeit die anfallende Abwärme aus einer Müllverbrennungsanlage genutzt.Further design of the invention: It is used for heating or evaporation the waste heat from a waste incineration plant is used for the liquid.

Erzielbare Vorteile: Die mit der Erfindung erzielten Vorteile liegen vor allem darin, daß Sonderabfälle in flüssiger Form mit geringem Kostenaufwand in Wasserdampf und Feststoffen getrennt werden.Achievable Advantages: The advantages achieved with the invention are especially in the fact that hazardous waste is in liquid form at low cost separated into water vapor and solids.

Da in der Regel der Feststoffanteil solcher Abwässer unter 10 % liegt, wird die Menge, die schadlos vernichtet werden muß, erhilich reduziert. Since the solids content of such wastewater is usually below 10%, the amount that must be destroyed without damage is reduced accordingly.

Gegenüber den bekannten Verfahren erfolgt die Trennung in nur einem Verfahrensgang. Compared to the known processes, the separation takes place in only one Procedure.

is werden keine zusätzlichen Chemikalien zur Trennung benötigt. No additional chemicals are required for separation.

Die aus der Nüllverbrennungsanlage anfallende Wärmeenergie kann genutzt werden, Der Wasserdampf kann wieder kondensiert werden und als technisches Brauwasser Verwendung finden. The thermal energy from the waste incineration plant can be used The water vapor can be condensed again and used as technical brewing water Find use.

Claims (1)

Pateiitans#rüche Oberbegriff; Verfahren zur thermischen Trennung von eststoffen aus Abwasser. Pateiitans # rüche generic term; Thermal separation process of solid matter from wastewater. Kennzeichnender Teil: Gekennzeichnet dadurch, daß in beheizten Sammelbecken oder Tanks Flüssigkeiten die Schadstoffe enthalten zur Verdampfung gebracht werden und dadurch eine Trennung der festen und flüssigen Bestandteile erfolgt.Characteristic part: Characterized in that in heated collecting basins or tanks Liquids containing pollutants are made to evaporate and thereby a separation of the solid and liquid components takes place. Oberbegriff des Unteranspruchs: 2. Verfahren zur thermischen Trennung von Feststoffen aus Abwasser in Verbindung mit der Nutzung der Abwärme von Hüllverbrennungsanlagen.Preamble of the dependent claim: 2. Process for thermal separation of solids from wastewater in connection with the use of waste heat from shell incineration plants. Kennzeichnender Teil des Unteranspruches: Dadurch gekennzeichnet, daß die Abwärme von Müllverbrennungsanlagen auch zur Trennung von Feststoffen aus Abwasser genutzt wird.Characteristic part of the dependent claim: characterized thereby, that the waste heat from waste incineration plants is also used to separate solids Wastewater is used.
DE19752545862 1975-10-14 1975-10-14 Thermal separation of solids from waste water - by evaporation in heated collecting tanks Pending DE2545862A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752545862 DE2545862A1 (en) 1975-10-14 1975-10-14 Thermal separation of solids from waste water - by evaporation in heated collecting tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752545862 DE2545862A1 (en) 1975-10-14 1975-10-14 Thermal separation of solids from waste water - by evaporation in heated collecting tanks

Publications (1)

Publication Number Publication Date
DE2545862A1 true DE2545862A1 (en) 1977-04-28

Family

ID=5959062

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752545862 Pending DE2545862A1 (en) 1975-10-14 1975-10-14 Thermal separation of solids from waste water - by evaporation in heated collecting tanks

Country Status (1)

Country Link
DE (1) DE2545862A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014648A1 (en) * 1979-02-13 1980-08-20 Edouard Paul Grenet Process for the simultaneous and economic production of energy sources, fresh water and by-products from aqueous substances and an energy source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014648A1 (en) * 1979-02-13 1980-08-20 Edouard Paul Grenet Process for the simultaneous and economic production of energy sources, fresh water and by-products from aqueous substances and an energy source
FR2474646A2 (en) * 1979-02-13 1981-07-31 Grenet Edouard METHOD FOR SIMULTANEOUS AND PROFITABLE PRODUCTION OF ENERGY, FRESHWATER AND BY-PRODUCT SOURCES FROM AQUEOUS SUBSTANCES AND ENERGY SOURCE

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