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DE4122175A1 - Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed - Google Patents

Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed

Info

Publication number
DE4122175A1
DE4122175A1 DE19914122175 DE4122175A DE4122175A1 DE 4122175 A1 DE4122175 A1 DE 4122175A1 DE 19914122175 DE19914122175 DE 19914122175 DE 4122175 A DE4122175 A DE 4122175A DE 4122175 A1 DE4122175 A1 DE 4122175A1
Authority
DE
Germany
Prior art keywords
briquettes
heavy metals
sintering
industrial wastes
microwave
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.)
Withdrawn
Application number
DE19914122175
Other languages
German (de)
Inventor
Peter Prof Dr Neumann-Venevere
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 DE19914122175 priority Critical patent/DE4122175A1/en
Publication of DE4122175A1 publication Critical patent/DE4122175A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
    • A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
    • A62D3/178—Microwave radiations, i.e. radiation having a wavelength of about 0.3 cm to 30cm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B09B3/32—Compressing or compacting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/20—Organic substances
    • A62D2101/24—Organic substances containing heavy metals
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Thermal Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Industrial wastes contg. heavy metals, e.g. ashes or other residues, in powder form, are compacted to briquettes, and mixed with a material, partic. magnetic, which has a high absorptivity for microwaves. The briquettes are then sintered in a microwave bed and can then be incorporated in waste disposal. ADVANTAGE - No escape of heavy metals into the environment.

Description

Die Erfindung, betrifft ein Verfahren zur Entsorgung von toxische Bestandteile aufweisendem Gut, insbesondere Schwermetall enthaltenden industriellen Reststoffen.The invention relates to a method for disposal good containing toxic components, in particular Industrial residues containing heavy metal.

Aschen und andere Reststoffe und Abfälle mit Gehalten an anorganischen toxischen Bestandteilen, insbesondere Schwermetallen, sind schwierig zu entsorgen und deren Deponierung ist sehr aufwendig. Das Hauptproblem besteht in der Gefahr, daß die toxischen Bestandteile durch Wasser (Regenwasser, Grundwasser) ausgelaugt und nachfolgend in die Umgebung migrieren können.Ash and other residues and waste with contents of inorganic toxic components, in particular Heavy metals are difficult to dispose of and theirs Landfilling is very complex. The main problem is in danger of the toxic components from water (Rainwater, groundwater) leached and subsequently in can migrate the environment.

Diese Gefahr kann, wie bekannt, weitgehend dadurch minimalisiert werden, daß das Material in eine gesinterte und folglich sehr schwer auslaugbare Form überführt wird. Erst nach dem Sintern erfolgt die Deponierung oder sogar die weitere Verarbeitung, beispielsweise als künstlicher Zuschlag für den Straßenbau und als Zuschlag für Beton.As is known, this danger can largely be caused by be minimized that the material is sintered and consequently very difficult to leach out form. Only after sintering does the landfill take place or even further processing, for example as artificial Surcharge for road construction and as a surcharge for concrete.

Für ein derartiges Zusammenwirken muß die pulverför­ mige Asche oder die anderen Reststoffe zunächst briket­ tiert und danach thermisch behandelt werden. Diese thermi­ sche Behandlung erfolgt in der Regel in einem mit fossilen Brennstoffen beheizten Ofen. Dann besteht aber die Gefahr, daß ein nicht unwesentlicher Anteil der toxischen Bestand­ teile durch die Abgase ausgetragen wird, so daß er in die Umwelt gelangt.For such interaction, the powder ash or the other residues first briquette be treated and then thermally treated. This thermi The treatment is usually done with fossil Fuels heated furnace. Then there is a risk that a not insignificant proportion of the toxic stock parts is discharged through the exhaust gases, so that it in the Environment.

Aufgabe der Erfindung ist es daher, ein Verfahren zu schaffen, mit dem eine das spätere Auslaugen verhindernde Sinterung möglich ist, ohne daß Schadstoffe während der thermischen Behandlung in die Umgebung gelangen können.The object of the invention is therefore to provide a method with which one prevents later leaching Sintering is possible without pollutants during the thermal treatment can get into the environment.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß das pulverförmige Ausgangsmaterial zu Briketts kompaktiert und anschließend in einem Mikrowellenbett gesintert wird. The object is achieved in that the powdery starting material is compacted into briquettes and then sintered in a microwave bed.  

Da ein Brennen in konventionellen, mit fossilen Brennstof­ fen beheizten Öfen entfällt, können die Briketts nicht in Kontakt mit strömenden Gasen kommen, so daß eine Verdamp­ fung der toxischen Bestandteile entfällt, zumindest aber minimalisiert wird.Because a burning in conventional, with fossil fuel If heated ovens are omitted, the briquettes cannot Coming into contact with flowing gases, causing an evaporator The toxic components are not used, at least however is minimized.

Nach einer zweckmäßigen Ausführung der Erfindung ist vorgesehen, daß dem Ausgangsmaterial eine Komponente zugemischt wird, die eine hohe Absorptionsfähigkeit für Mikrowellen aufweist. Dadurch wird eine schnelle und sichere thermische Behandlung erreicht und das Abgeben der toxischen Bestandteile erschwert.According to an expedient embodiment of the invention provided that the starting material has a component is admixed, which has a high absorbency for Has microwaves. This will make a quick and achieved safe thermal treatment and dispensing of the toxic components difficult.

Als besonders geeignet sieht die Erfindung Magnetit vor, das als rohes Eisenerz in ausreichenden Mengen zur Verfügung steht und erfindungsgemäß dem Ausgangsmaterial zugemischt werden kann.The invention sees magnetite as particularly suitable before that as raw iron ore in sufficient quantities for Is available and according to the starting material can be added.

Insgesamt gesehen steht damit ein Verfahren zur Verfügung, mit dem auch große Mengen industrieller Rest­ stoffe sicher so verarbeitet werden können, daß die darin enthaltenen toxischen Bestandteile anschließend nicht in die Umwelt entweichen können und das weder durch Regenwas­ ser oder Grundwasser noch durch vorbeiströmende Gase während der thermischen Behandlung.Seen as a whole, this is a procedure With which even large quantities of industrial rest substances can be processed safely so that the contained toxic components subsequently not in the environment can escape and that neither through rainwater water or groundwater due to gases flowing past during the thermal treatment.

Claims (3)

1. Verfahren zur Entsorgung von toxische Bestandteile aufweisendem Gut, insbesondere Schwermetall enthaltenden industriellen Reststoffen, dadurch gekennzeichnet, daß das pulverförmige Ausgangsmaterial zu Briketts kompak­ tiert und anschließend in einem Mikrowellenbett gesintert wird.1. A process for the disposal of toxic components, in particular heavy metal-containing industrial residues, characterized in that the powdered starting material is compacted into briquettes and then sintered in a microwave bed. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Ausgangsmaterial eine Komponente zugemischt wird, die eine hohe Absorptionsfähigkeit für Mikrowellen auf­ weist.2. The method according to claim 1, characterized, that a component is mixed into the starting material, which has a high absorption capacity for microwaves points. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die zuzumischende Komponente Magnetit oder eine ähnli­ che, im Mikrowellenbereich intensiv reagierende Substanz erforderlicher Güte ist.3. The method according to claim 2, characterized, that the component to be admixed magnetite or a similar This substance reacts intensively in the microwave range goodness is required.
DE19914122175 1991-07-04 1991-07-04 Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed Withdrawn DE4122175A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914122175 DE4122175A1 (en) 1991-07-04 1991-07-04 Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914122175 DE4122175A1 (en) 1991-07-04 1991-07-04 Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed

Publications (1)

Publication Number Publication Date
DE4122175A1 true DE4122175A1 (en) 1993-01-07

Family

ID=6435440

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914122175 Withdrawn DE4122175A1 (en) 1991-07-04 1991-07-04 Disposal method for industrial wastes contg. heavy metals - comprises compacting waste powder into briquettes and sintering on microwave bed

Country Status (1)

Country Link
DE (1) DE4122175A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303729A1 (en) * 1993-02-04 1994-08-11 Kokoschko Rene Dipl Krist Process for decomposing inorganic nonmetallic fibre materials which are hazardous to health, in particular asbestos, and also asbestos-containing materials including asbestos cement
DE19515362A1 (en) * 1995-05-02 1996-11-14 Markus Muehleisen Fusion reactor ash sublimation appts.
WO2002097330A1 (en) * 2001-06-01 2002-12-05 Emr Microwave Technology Corporation A method of reducing carbon levels in fly ash
WO2004065852A1 (en) * 2003-01-23 2004-08-05 Innova Ash Ltd. A method of reducing unburned carbon levels in coal ash
US8207391B2 (en) * 2004-06-07 2012-06-26 National Institute For Materials Science Adsorbent for radioelement-containing waste and method for fixing radioelement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303729A1 (en) * 1993-02-04 1994-08-11 Kokoschko Rene Dipl Krist Process for decomposing inorganic nonmetallic fibre materials which are hazardous to health, in particular asbestos, and also asbestos-containing materials including asbestos cement
DE4303729C2 (en) * 1993-02-04 1999-04-15 Kokoschko Rene Dipl Krist Process for phase change of health-endangering asbestos fibers
DE19515362A1 (en) * 1995-05-02 1996-11-14 Markus Muehleisen Fusion reactor ash sublimation appts.
WO2002097330A1 (en) * 2001-06-01 2002-12-05 Emr Microwave Technology Corporation A method of reducing carbon levels in fly ash
WO2004065852A1 (en) * 2003-01-23 2004-08-05 Innova Ash Ltd. A method of reducing unburned carbon levels in coal ash
US8207391B2 (en) * 2004-06-07 2012-06-26 National Institute For Materials Science Adsorbent for radioelement-containing waste and method for fixing radioelement

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee