NO961830L - Process for neutralizing waste by crystallization - Google Patents

Process for neutralizing waste by crystallization

Info

Publication number
NO961830L
NO961830L NO961830A NO961830A NO961830L NO 961830 L NO961830 L NO 961830L NO 961830 A NO961830 A NO 961830A NO 961830 A NO961830 A NO 961830A NO 961830 L NO961830 L NO 961830L
Authority
NO
Norway
Prior art keywords
waste
treated
mixture
heating
melt
Prior art date
Application number
NO961830A
Other languages
Norwegian (no)
Other versions
NO961830D0 (en
Inventor
Choffel Laurent Febvay
Pierre Blazy
Michel Arnold
Jean-Louis Pineau
Bach Tuyet Lam
Jacques Thauront
Original Assignee
Emc Services
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 Emc Services filed Critical Emc Services
Publication of NO961830D0 publication Critical patent/NO961830D0/en
Publication of NO961830L publication Critical patent/NO961830L/en

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
    • A62D3/40—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by heating to effect chemical change, e.g. pyrolysis
    • 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
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • 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
    • A62D2101/08—Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
    • 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
    • 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
    • A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
    • A62D2203/04—Combined processes involving two or more non-distinct steps covered by groups A62D3/10 - A62D3/40

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Compounds Of Iron (AREA)

Abstract

Den foreliggende oppfinnelse vedrører en fremgangsmåte til innaktivering av rester etter forbrenning av industri- eller husholdningsavfall, eller av metallhydroksidslam, hvilken ved stabilisering gjør det mulig på lang sikt å immobilisere de giftige metaller som rommes i dette avfall. Fremgangsmåten omfatter nærmere bestemt etappen med oppvarming av en blanding som omfatter det avfall som skal behandles og et eller flere agenser for kjernedanning som nærmere bestemt inneholder jemforbindelser. Oppvarmingen gjennomføres under slike betingelser at den muliggjør oppnåelsen av en blanding i en veskefase som videre kalles smelteblanding eller "melt", hvori minst 5% av oksydene Fe2O3 omdannes til FeO. Fremgangsmåten omfatter likeledes den styrte avkjøling av denne "melt" helt til oppnåelsen av et fast materiale hvori de tungmetaller som rommes i det avfall som behandles er inkludert inne i krystallstrukturene, og oppsamling av det faste materialet som oppnåes. Oppvarmingsetappen kan omfatte en fase med stabilisering av blandingen ved en temperatur som tillater fullstendig forveskning av den blanding som behandles.The present invention relates to a method of inactivating residues after the incineration of industrial or household waste, or of metal hydroxide sludge, which, upon stabilization, makes it possible in the long term to immobilize the toxic metals contained in this waste. More particularly, the process comprises the stage of heating a mixture comprising the waste to be treated and one or more nucleating agents which more specifically contain iron compounds. The heating is carried out under such conditions as to enable a mixture to be obtained in a liquid phase which is further referred to as melt blend or "melt" in which at least 5% of the oxides Fe2O3 are converted to FeO. The process also includes the controlled cooling of this "melt" all the way to obtaining a solid material in which the heavy metals contained in the waste being treated are included within the crystal structures and collecting the solid material obtained. The heating stage may comprise a phase of stabilizing the mixture at a temperature which permits complete pre-mixing of the composition being treated.

NO961830A 1993-11-10 1996-05-06 Process for neutralizing waste by crystallization NO961830L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9313449A FR2712214B1 (en) 1993-11-10 1993-11-10 Waste crystallization process.
PCT/FR1994/001322 WO1995013116A1 (en) 1993-11-10 1994-11-10 Method for inerting waste by crystallisation

Publications (2)

Publication Number Publication Date
NO961830D0 NO961830D0 (en) 1996-05-06
NO961830L true NO961830L (en) 1996-06-17

Family

ID=9452748

Family Applications (1)

Application Number Title Priority Date Filing Date
NO961830A NO961830L (en) 1993-11-10 1996-05-06 Process for neutralizing waste by crystallization

Country Status (8)

Country Link
EP (1) EP0652032A1 (en)
JP (1) JPH09509089A (en)
CA (1) CA2176118A1 (en)
FI (1) FI961942A7 (en)
FR (1) FR2712214B1 (en)
HU (1) HUT74720A (en)
NO (1) NO961830L (en)
WO (1) WO1995013116A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010590C2 (en) * 1998-11-18 2000-05-22 Droan B V Method for the non-leachable immobilization of molybdenum compounds in a slag.
EP4446290A1 (en) * 2023-04-13 2024-10-16 Schott Ag Glass ceramic with low phase volume and high optical extinction in nuv/vis/nir
WO2024213547A1 (en) * 2023-04-13 2024-10-17 Schott Ag Glass-ceramic with low phase volume and high optical extinction in nuv/vis/nir

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR94979E (en) * 1965-09-23 1970-02-27 Centre Nat Rech Scient New manufacturing process for glass or ceramic products.
JPS5748400A (en) * 1980-09-05 1982-03-19 Kubota Ltd Melting method for sludge from water treatment process
JPS58156388A (en) * 1982-03-12 1983-09-17 Ngk Insulators Ltd Method for making crystallized matter from incineration ash of waste matter as raw material
JPS59164668A (en) * 1983-03-10 1984-09-17 日本碍子株式会社 Manufacture of aggregate
JP2775525B2 (en) * 1990-12-25 1998-07-16 月島機械株式会社 Method for producing crystallized glass

Also Published As

Publication number Publication date
HU9601207D0 (en) 1996-07-29
WO1995013116A1 (en) 1995-05-18
FR2712214B1 (en) 1996-01-19
FI961942A7 (en) 1996-06-28
NO961830D0 (en) 1996-05-06
FR2712214A1 (en) 1995-05-19
JPH09509089A (en) 1997-09-16
CA2176118A1 (en) 1995-05-18
FI961942A0 (en) 1996-05-08
HUT74720A (en) 1997-02-28
EP0652032A1 (en) 1995-05-10

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