DE19616470A1 - Sludge conditioner - Google Patents

Sludge conditioner

Info

Publication number
DE19616470A1
DE19616470A1 DE19616470A DE19616470A DE19616470A1 DE 19616470 A1 DE19616470 A1 DE 19616470A1 DE 19616470 A DE19616470 A DE 19616470A DE 19616470 A DE19616470 A DE 19616470A DE 19616470 A1 DE19616470 A1 DE 19616470A1
Authority
DE
Germany
Prior art keywords
sludge
conditioning
conditioning agent
dry
mixer
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.)
Ceased
Application number
DE19616470A
Other languages
German (de)
Inventor
Ruediger Schwenk
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 DE19616470A priority Critical patent/DE19616470A1/en
Publication of DE19616470A1 publication Critical patent/DE19616470A1/en
Ceased 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

A conditioner pretreats e.g. domestic, industrial and drilling platform sludges for dewatering. The novel conditioner is a dried, at least two-part mixture of powdered inorganic substances. Preferably, mixture components comprise a combination of quicklime (CaO), pulverised sulphur oxid and ground metal oxides. Also claimed is a suitable plant, with dosing and conveying equipment.

Description

Es ist bekannt, Schlämme mit flüssigen Konditionierungsmitteln für die Entwässerung zu kondi­ tionieren, wie z. B. mit Kalkmilch, Zugabe von Eisenchlorid oder verflüssigtem Polymer. Diese Konditionierungsmitteln sind jedoch teuer, so daß die Betriebskosten der Schlammentwässerung sehr hoch sind. Auch sind die beim Entwässern mit diesen Konditionierungsmitteln erzielten TS-Gehalte zu niedrig, um sie zu deponieren oder zu verbrennen zu können. Die sich aus dem Stand der Technik herleitende Aufgabe, TS-Gehalte zu steigern und die Konditionierungskosten zu sen­ ken, ist erfindungsgemäß dadurch gelöst, daß das Konditionierungsmittel mittels einer trockenen Mischung aus mindestens zwei in Pulverform vorliegenden anorganischen Substanzen besteht. Mit diesem neuen Konditionierungsmittel steigt überraschender Weise der TS-Gehalt in dem entwässerten Schlamm auf über 40%. Eine Steigerung von mehr als 5% Punkte. Als trockener Bestandteil der Mischung wird u. a. Brandkalk verwendet, dessen Anteil bei über 40% liegt. Weitere Bestandteile sind Sulfuroxide und verschiedene Metalloxide. Das neue Verfahren zum Einsatz des trocken eingemischten Konditionierungsmittels ist dadurch gekennzeichnet, daß das trockene Konditionierungsmittel mittels einer Dosiervorrichtung in den Konditionierungsmischer zugesetzt wird. It is known to condense sludges with liquid conditioners for dewatering tion such. B. with milk of lime, addition of iron chloride or liquefied polymer. This Conditioning agents are expensive, however, so the operating costs of sludge dewatering are very high. The TS contents achieved with these conditioning agents during dewatering are also too low to be able to deposit or burn them. The stand out the technology-derived task of increasing the TS content and lowering the conditioning costs ken, is solved according to the invention in that the conditioning agent by means of a dry Mixture consists of at least two inorganic substances present in powder form. With this new conditioning agent, the TS content increases surprisingly dewatered sludge to over 40%. An increase of more than 5% points. As drier Part of the mixture is u. a. Lime is used, the proportion of which is over 40%. Other components are sulfur oxides and various metal oxides. The new process for Use of the dry-mixed conditioning agent is characterized in that the dry conditioning agent into the conditioning mixer using a metering device is added.  

Eine Anlage zur Durchführung der Schlammkonditionierung ist auf Seite 3 gezeigt:
A: Silo für Konditionierungsmittel
B: Dosiergerät für Konditionierungsmittel
C: Förderstrecke für Konditionierungsmittel
D: Schlammleitung vom Schlammspeicher mit Pumpe
E : Konditionierungsmischer
E1: Rührwerk im Konditionierungsmischer
F: Konditionierungspumpe
G: Schlammstapelbehälter
G1: Rührwerk im Schlammstapelbehälter
H: Leitung zur Schlammentwässerungsanlage
Erklärung zu Blatt 3:
Punkt A zeigt das Konditionierungsmittelsilo, Punkt B zeigt die Dosiereinrichtung. Das Konditio­ nierungsmittel wird mit der Dosiereinrichtung dosiert und mittels einer Förderstrecke C in den Konditionierungsmischer E gefördert. Mit der Pumpe D wird der zu behandelnde Schlamm aus einem Schlammspeicher oder Schlammeindicker in den Konditionierungsmischer E gepumpt. Punkt E1 zeigt das Rührwerk, womit das Konditionierungsmittel in den Schlamm eingemischt wird. Mit der Pumpe F wird der konditionierte Schlamm in den Schlammstapelbehälter G ge­ pumpt. Punkt G1 zeigt das Rührwerk, womit der Schlamm ständig in Bewegung gehalten wird. Punkt H zeigt die Rohrleitung, wodurch der Schlamm in eine Schlammentwässerungsanlage ge­ langt.A system for performing sludge conditioning is shown on page 3:
A: Conditioning agent silo
B: dosing device for conditioning agents
C: Conveying line for conditioning agents
D: sludge line from sludge storage with pump
E: conditioning mixer
E1: Agitator in the conditioning mixer
F: conditioning pump
G: sludge stacking container
G1: agitator in the sludge stacking container
H: Line to the sludge dewatering system
Declaration on sheet 3:
Point A shows the conditioning agent silo, point B shows the dosing device. The conditioning agent is dosed with the dosing device and conveyed into the conditioning mixer E by means of a conveyor path C. With the pump D the sludge to be treated is pumped from a sludge storage or sludge thickener into the conditioning mixer E. Point E1 shows the agitator, with which the conditioning agent is mixed into the sludge. With the pump F, the conditioned sludge is pumped into the sludge stacking container G. Point G1 shows the agitator, with which the sludge is kept in constant motion. Point H shows the pipeline, whereby the sludge reaches a sludge dewatering plant.

Claims (6)

1. Konditionierungsmittel für die Konditionierung von anschließend zu entwässernden Schläm­ men, wie z. B. Kommunalklärschlämme, Industrieschlämme und Bohrinselschlämme, dadurch gekennzeichnet, daß das Konditionierungsmittel eine trockene Mischung aus mindestens zwei in Pulverform vorliegenden anorganischen Substanzen ist.1. Conditioning agent for the conditioning of sludge to be subsequently drained, such as. B. municipal sewage sludge, industrial sludge and drilling platform sludge, characterized in that the conditioning agent is a dry mixture of at least two inorganic substances present in powder form. 2. Konditionierungsmittel nach Anspruch I, dadurch gekennzeichnet, daß ein Bestandteil der trockenen Mischung Branntkalk (CaO) ist.2. conditioning agent according to claim I, characterized, that part of the dry mix is quicklime (CaO). 3. Konditionierungsmittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Bestandteil der trockenen Mischung pulverisiertes Sulfuroxid ist.3. conditioning agent according to claim 1 or 2, characterized, that a component of the dry mixture is powdered sulfur oxide. 4. Konditionierungsmittel nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß ein Bestandteil der trockenen Mischung gemahlene Metalloxide sind.4. conditioning agent according to claim 1, 2 or 3, characterized, that a component of the dry mixture are ground metal oxides. 5. Verfahren für die Konditionierung von anschließend zu entwässerndem Schlamm, welche im Rahmen der biologischen Abwasser- und Schlammbehandlung sowohl für kommunale Klär­ schlämme, Industrieschlämme, aber auch für Bohrinselschlämme anfallen, unter Einsatz des in den Ansprüchen 1 bis 4 beanspruchten Konditionierungsmittels, dadurch gekennzeichnet, daß das trockene Konditionierungsmittel mittels einer Dosiervorrichtung in den Konditionie­ rungsmischer zugesetzt wird. 5. Process for the conditioning of sludge to be subsequently drained, which in the Framework of biological wastewater and sludge treatment for both municipal wastewater treatment sludge, industrial sludge, but also for drilling platform sludge, using the in claims 1 to 4 claimed conditioning agent, characterized, that the dry conditioning agent in the conditionie by means of a metering device tion mixer is added.   6. Verfahren nach Anspruch 5, gekennzeichnet dadurch, daß das Konditionierungsmittel nach der Dosierung mittels einer Fördereinrichtung in den Konditionierungsmischer gefördert wird.6. The method according to claim 5, characterized by that the conditioning agent after dosing by means of a conveyor in the Conditioning mixer is promoted.
DE19616470A 1996-04-22 1996-04-22 Sludge conditioner Ceased DE19616470A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19616470A DE19616470A1 (en) 1996-04-22 1996-04-22 Sludge conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19616470A DE19616470A1 (en) 1996-04-22 1996-04-22 Sludge conditioner

Publications (1)

Publication Number Publication Date
DE19616470A1 true DE19616470A1 (en) 1997-10-23

Family

ID=7792380

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19616470A Ceased DE19616470A1 (en) 1996-04-22 1996-04-22 Sludge conditioner

Country Status (1)

Country Link
DE (1) DE19616470A1 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2239733A1 (en) * 1972-08-12 1974-03-07 Wibau Gmbh METHOD FOR CONDITIONING SEWING SLUDGE
EP0031894A2 (en) * 1980-01-07 1981-07-15 Rheinische Kalksteinwerke GmbH. Apparatus for the continuous mixing and granulating of sludge with solids
DD155981A5 (en) * 1978-11-08 1982-07-21 Stablex Ag PROCESS FOR TREATING OILY WASTE
DE3546274A1 (en) * 1985-12-28 1987-07-02 Wolfgang Panholzer Process for rendering sewage sludge hygienic by adding powdered hydrated lime, and a device for carrying out the process
DE3720444A1 (en) * 1986-06-26 1988-01-14 Comalco Alu METHOD FOR TREATING RED SLUDGE BY THE BAYER METHOD
DE4206900A1 (en) * 1992-03-05 1993-09-09 Friedrich Kadelka Sludge processing - using water-absorbent granular material and hydraulic bonding agent and additive to increase density to give construction material
DE4218566A1 (en) * 1992-06-05 1993-12-09 Rainer L M Klopp Biodegradable component for use in landfills etc. - comprises clarified sludge with binder e.g. polymeric material pref. gypsum
DE4225886A1 (en) * 1992-08-05 1994-02-10 Walhalla Kalk Entwicklungs Und Additives and processes for dewatering and / or solidifying sludge
DE4419280C1 (en) * 1994-06-01 1995-10-26 Hochwald Ton Gmbh Treatment of sewage sludge
DE4417012A1 (en) * 1994-05-13 1995-11-16 Saechsische Umweltschutz Consu Prodn. of soil-like landfill capping material
DE19517603A1 (en) * 1995-05-13 1996-11-14 Code Gmbh Commercial Developme Converting wet clarified sludge into useful prods. such as fuel, fertiliser or building material

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2239733A1 (en) * 1972-08-12 1974-03-07 Wibau Gmbh METHOD FOR CONDITIONING SEWING SLUDGE
DD155981A5 (en) * 1978-11-08 1982-07-21 Stablex Ag PROCESS FOR TREATING OILY WASTE
EP0031894A2 (en) * 1980-01-07 1981-07-15 Rheinische Kalksteinwerke GmbH. Apparatus for the continuous mixing and granulating of sludge with solids
DE3546274A1 (en) * 1985-12-28 1987-07-02 Wolfgang Panholzer Process for rendering sewage sludge hygienic by adding powdered hydrated lime, and a device for carrying out the process
DE3720444A1 (en) * 1986-06-26 1988-01-14 Comalco Alu METHOD FOR TREATING RED SLUDGE BY THE BAYER METHOD
DE4206900A1 (en) * 1992-03-05 1993-09-09 Friedrich Kadelka Sludge processing - using water-absorbent granular material and hydraulic bonding agent and additive to increase density to give construction material
DE4218566A1 (en) * 1992-06-05 1993-12-09 Rainer L M Klopp Biodegradable component for use in landfills etc. - comprises clarified sludge with binder e.g. polymeric material pref. gypsum
DE4225886A1 (en) * 1992-08-05 1994-02-10 Walhalla Kalk Entwicklungs Und Additives and processes for dewatering and / or solidifying sludge
DE4417012A1 (en) * 1994-05-13 1995-11-16 Saechsische Umweltschutz Consu Prodn. of soil-like landfill capping material
DE4419280C1 (en) * 1994-06-01 1995-10-26 Hochwald Ton Gmbh Treatment of sewage sludge
DE19517603A1 (en) * 1995-05-13 1996-11-14 Code Gmbh Commercial Developme Converting wet clarified sludge into useful prods. such as fuel, fertiliser or building material

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