EP1406702A2 - Proc d pour immobiliser des r sidus de combustion - Google Patents

Proc d pour immobiliser des r sidus de combustion

Info

Publication number
EP1406702A2
EP1406702A2 EP02744921A EP02744921A EP1406702A2 EP 1406702 A2 EP1406702 A2 EP 1406702A2 EP 02744921 A EP02744921 A EP 02744921A EP 02744921 A EP02744921 A EP 02744921A EP 1406702 A2 EP1406702 A2 EP 1406702A2
Authority
EP
European Patent Office
Prior art keywords
residues
treatment
waste
chemical treatment
filtrate
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Withdrawn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
EP02744921A
Other languages
German (de)
English (en)
Inventor
Kurt Scheidl
Franz Neubacher
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.)
Uv & P Umweltmanagement - Verfahrenstechnik Neubacher & Partner Gesmbh
Original Assignee
Uv & P Umweltmanagement - Verfahrenstechnik Neubacher & Partner Gesmbh
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 Uv & P Umweltmanagement - Verfahrenstechnik Neubacher & Partner Gesmbh filed Critical Uv & P Umweltmanagement - Verfahrenstechnik Neubacher & Partner Gesmbh
Publication of EP1406702A2 publication Critical patent/EP1406702A2/fr
Withdrawn legal-status Critical Current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
    • A62D3/30—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B1/00—Dumping solid waste
    • B09B1/008—Subterranean disposal, e.g. in boreholes or subsurface fractures
    • 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
    • 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
    • A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
    • A62D2203/02—Combined processes involving two or more distinct steps covered by groups A62D3/10 - A62D3/40

Definitions

  • the invention relates to a method for immobilizing solid, liquid and / or pasty residues from the combustion and from the exhaust gas cleaning following the combustion, in particular from plants for the thermal treatment of waste.
  • JP 8-309310 A discloses the treatment of fly ash from incinerators which contains heavy metals.
  • the fly ash is mixed with an aqueous mineral acid solution and a pH value of less than or equal to 4 is set, the heavy metals being eluted.
  • a pH value of less than or equal to 4 is set, the heavy metals being eluted.
  • iron ions an oxidation reaction and a subsequent precipitation reaction, the heavy metals are converted into a precipitation product with iron hydroxide and finally bound as ferrite by adding an alkaline substance.
  • the object of the invention is to avoid the disadvantages mentioned in the landfilling of insufficiently treated residues and to develop a method for immobilizing solid, liquid and / or pasty residues from the combustion and from the exhaust gas purification following the combustion, which the goals and principles of future-oriented waste economy met with economically reasonable costs.
  • the wet chemical treatment at basic pH values partially elutes harmful substances from the residues and deliberately changes the hydraulic and mineralogical properties; Furthermore, gas formation from metallic residues (e.g. aluminum) is promoted, so that the reaction product from the wet chemical treatment can be subjected to the further immobilization steps after it has been dewatered.
  • This is achieved in particular by adjusting the pH in the range from 8 to 13, preferably in the range from 11.5 to 12.5, in order to ensure that the gas formation potential from the reaction of metallic compounds is reduced.
  • the wet chemical treatment can be carried out with the addition of lye, preferably in the form of alkaline residues or waste, it being possible to use electrochemical processes in addition to improve the chemical reaction in point b).
  • the method according to the invention also fulfills the guidelines for waste management, published by the Federal Ministry for the Environment, Teen and Family in 1988, according to which a future-oriented waste economy includes comprehensive treatment of waste, so that ultimately only "earth crust-like" residues are deposited.
  • the following properties are to be understood: insoluble or permanently poorly soluble
  • An environmentally compatible disposal of solid, liquid and / or pasty residues from the combustion as well as from the exhaust gas cleaning following the combustion thus includes:
  • gases generated during the wet chemical treatment according to point b) can be flared, stored or recycled, preferably for energy use in the incineration plant or in an external plant.
  • the amount of the filtrate recirculated in point d) can advantageously be 3: 1 to 20: 1, depending on the solids content in the wet chemical treatment and the water content in the mechanically dewatered reaction product, based on the amount of waste supplied to the wet chemical treatment. It works on the basis of a closed water balance and additional process water required is advantageously fed from the incineration plant (e.g. thin sludge from wastewater treatment)
  • the filtrate to be returned is subjected to intermediate treatment, for example for the chemical precipitation of dissolved heavy metals.
  • intermediate treatment of the filtrate to be recycled can be carried out using organosulfidic compounds, for example TMT 15.
  • the mechanically dewatered reaction product with the addition of mineral or inorganic auxiliaries and other suitable residues and wastes can be processed to landfill that can be deposited.
  • dry materials are preferably used for the dewatered reaction product and, if required, wastewater is also used to adjust the optimum moisture for the controlled installation and compaction on the landfill (e.g. reaching the optimal density of the process).
  • wastewater is also used to adjust the optimum moisture for the controlled installation and compaction on the landfill (e.g. reaching the optimal density of the process).
  • gravel washing sludge can be added.
  • the required amount of water can be covered by using any contaminated rainwater that occurs in the area where the landfill is installed, as well as any seepage water that may still be squeezed out during the compression process.
  • the wet chemical treatment 2 is carried out of residues that cannot be deposited directly or are not suitable for producing landfill material (e.g. ash) while setting a basic pH value, if necessary in combination or in addition to electrochemical treatment.
  • the gases obtained in the wet chemical treatment 2 in particular hydrogen, and possibly other gases such as ammonia, hydrogen sulfide, methane and phosphine are preferably fed to the incinerator in area 1 for energy use or a gas storage 3, or used in an external system for energy purposes (e.g. gas engine) or disposed of (e.g. gas torch).
  • gases obtained in the wet chemical treatment 2 in particular hydrogen, and possibly other gases such as ammonia, hydrogen sulfide, methane and phosphine are preferably fed to the incinerator in area 1 for energy use or a gas storage 3, or used in an external system for energy purposes (e.g. gas engine) or disposed of (e.g. gas torch).
  • Waste water concentrates or thin sludge from waste water purification for example from wet waste gas purification, can be fed to wet chemical treatment 2. This is necessary in view of the total water balance and the replacement for the moisture discharged onto the landfill body 5 via the production of the landfill material 4 and is advantageous compared to the use of fresh water.
  • the mechanical dewatering 6 of the suspension from the wet chemical treatment 2 is preferably carried out using filter presses or other devices, advantageously together or alternately with other residues from the same system.
  • the filtrate obtained in the mechanical dewatering 6 is returned to the wet chemical treatment 2, if appropriate after a chemical intermediate treatment 7 by means of precipitants, for example organosulfides for the precipitation and separation of dissolved heavy metals.
  • precipitants for example organosulfides for the precipitation and separation of dissolved heavy metals.
  • the amount of filtrate returned is based on a closed water balance, with additional water advantageously being supplied from area 1 of the incineration plant (for example thin sludge from wastewater treatment).
  • the dewatered residues from the mechanical dewatering 6 are combined with residues from the incineration plant 1 that can be deposited directly, with mineral auxiliaries and / or other solid, pasty or liquid residues from external plants, e.g. processed according to the principle of "diagenetic inerting" (AT 389 474 B) into a depositable mass or landfill material (see production of landfill material 4).
  • the landfill goods produced according to the appropriate recipe are stored indefinitely in accordance with the legal requirements, preferably on surface landfills 5 or for the filling of underground cavities by mining technology.
  • the slightly occurring leachate (from the area of the installation site 8 and any squeezed water from the landfill material) can be used in the production of the landfill material 4 if required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé pour immobiliser des résidus solides, liquides et/ou pâteux résultant d'une combustion et d'une épuration des effluents gazeux de la combustion, notamment dans des installations de traitement thermique des déchets. Ce procédé comporte les opérations suivantes: a) saisie séparée des résidus de différents niveaux de processus; b) traitement chimique par voie humide des résidus qui ne peuvent pas être évacués directement ou servir directement à la fabrication d'un produit de décharge, une valeur pH de base étant réglée dans un réacteur fermé; c) assèchement mécanique du produit de réaction provenant du traitement chimique par voie humide; d) remise en circulation du filtrat obtenu au point c) dans le traitement chimique par voie humide selon le point b) et apport d'eaux usées ou de boues fluides complétant la quantité de filtrat remis en circulation, en fonction du bilan hydrique; e) réalisation d'un produit de décharge selon une formulation donnée, avec apport de résidus de combustion pouvant être évacués directement ou servir à la fabrication d'un produit de décharge et/ou de résidus et de déchets provenant d'installations de production et de traitement externes; f) pose et stockage du produit de décharge réalisé au point e), de préférence sur des décharges à ciel ouvert ou dans des cavités souterraines à remplir pour l'exploitation de mines.
EP02744921A 2001-07-16 2002-07-16 Proc d pour immobiliser des r sidus de combustion Withdrawn EP1406702A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0056501U AT5356U1 (de) 2001-07-16 2001-07-16 Verfahren zur immobilisierung von verbrennungsrückständen
AT56501U 2001-07-16
PCT/AT2002/000211 WO2003008045A2 (fr) 2001-07-16 2002-07-16 Procédé pour immobiliser des résidus de combustion

Publications (1)

Publication Number Publication Date
EP1406702A2 true EP1406702A2 (fr) 2004-04-14

Family

ID=3493968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02744921A Withdrawn EP1406702A2 (fr) 2001-07-16 2002-07-16 Proc d pour immobiliser des r sidus de combustion

Country Status (4)

Country Link
EP (1) EP1406702A2 (fr)
AT (1) AT5356U1 (fr)
AU (1) AU2002317023A1 (fr)
WO (1) WO2003008045A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9626555D0 (en) * 1996-12-20 1997-02-05 Mead Corp Article carrier and blank therefor
CN101490267B (zh) 2006-05-17 2013-04-17 先锋高级育种国际公司 人工植物微染色体
CA2691440A1 (fr) 2007-06-29 2009-01-08 Pioneer Hi-Bred International, Inc. Procedes de modification du genome d'une cellule de plante monocotyledone
US20110167516A1 (en) 2009-12-30 2011-07-07 Pioneer Hi-Bred International, Inc. Methods and compositions for the introduction and regulated expression of genes in plants
WO2011082310A2 (fr) 2009-12-30 2011-07-07 Pioneer Hi-Bred International, Inc. Procédés et compositions pour la modification ciblée de polynucléotides
EA201391373A1 (ru) 2011-03-23 2014-07-30 Пайонир Хай-Бред Интернэшнл, Инк. Способы получения сложного локуса трансгенных признаков
WO2012149470A1 (fr) 2011-04-27 2012-11-01 Amyris, Inc. Procédés de modification génomique
CA2844470A1 (fr) 2011-06-21 2013-05-10 Pioneer Hi-Bred International, Inc. Procedes et compositions pour obtenir des plantes steriles males
DK2839013T3 (da) 2012-04-18 2020-09-14 Univ Leland Stanford Junior Ikke-disruptiv-gen-targetering
US20140173781A1 (en) 2012-12-13 2014-06-19 Pioneer Hi-Bred International, Inc. Methods and compositions for producing and selecting transgenic wheat plants
KR102274445B1 (ko) 2013-12-19 2021-07-08 아미리스 인코퍼레이티드 게놈 삽입을 위한 방법
AU2015231231B2 (en) 2014-03-21 2021-09-02 The Board Of Trustees Of The Leland Stanford Junior University Genome editing without nucleases
US11293033B2 (en) 2016-05-18 2022-04-05 Amyris, Inc. Compositions and methods for genomic integration of nucleic acids into exogenous landing pads

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135368A1 (de) * 1991-10-26 1993-07-29 Preussag Ag Verfahren zur aufbereitung von filterstaeuben, insbesondere aus abfallverbrennungsanlagen
DE4324796A1 (de) * 1993-07-23 1995-01-26 Abb Research Ltd Verfahren zur Reststoffbehandlung in Müllverbrennungsanlagen
AU3078995A (en) * 1994-07-22 1996-02-22 Tresold Tratamiento De Residuos Solidos, S.L. Method for processing and inerting ashes obtained from solid residues subjected to thermal processes
FR2764531B1 (fr) * 1997-06-11 1999-09-03 B & C Services Sarl Procede pour traiter les residus d'epuration des fumees d'incineration d'ordures menageres et/ou de dechets industriels
FR2770159B1 (fr) * 1997-10-24 1999-12-10 Recupyl Sa Procede de recyclage des refiom et refidi par voie hydrometallurgique
FR2792856B1 (fr) * 1999-04-30 2001-07-13 B & C Services Sarl Procede pour decontaminer un produit contenant des metaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03008045A2 *

Also Published As

Publication number Publication date
WO2003008045A2 (fr) 2003-01-30
AT5356U1 (de) 2002-06-25
AU2002317023A1 (en) 2003-03-03
WO2003008045A3 (fr) 2003-04-17

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