WO2025140755A1 - A method of the decontamination of dangerous substances from wood and/or wooden materials - Google Patents

A method of the decontamination of dangerous substances from wood and/or wooden materials Download PDF

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Publication number
WO2025140755A1
WO2025140755A1 PCT/CZ2024/000032 CZ2024000032W WO2025140755A1 WO 2025140755 A1 WO2025140755 A1 WO 2025140755A1 CZ 2024000032 W CZ2024000032 W CZ 2024000032W WO 2025140755 A1 WO2025140755 A1 WO 2025140755A1
Authority
WO
WIPO (PCT)
Prior art keywords
wood
substances
wooden
hydroxide
potassium
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
PCT/CZ2024/000032
Other languages
English (en)
French (fr)
Inventor
Jaromir Daxner
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.)
Prumyslove Pravni Strategie Spol S RO
Original Assignee
Prumyslove Pravni Strategie Spol S RO
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 Prumyslove Pravni Strategie Spol S RO filed Critical Prumyslove Pravni Strategie Spol S RO
Publication of WO2025140755A1 publication Critical patent/WO2025140755A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
    • 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
    • A62D3/36—Detoxification by using acid or alkaline reagents
    • 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
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
    • 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
    • B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/18—Compounds of alkaline earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/20—Compounds of alkali metals or ammonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/06—Softening or hardening of wood
    • 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
    • A62D2101/22—Organic substances containing halogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/85—Paper; Wood; Fabrics, e.g. cloths

Definitions

  • a disadvantage of this technical solution is that contaminated carriers of dangerous substances, such as wood, are also destroyed if they are organic in origin.
  • the aforementioned disadvantages are eliminated by a method for decontaminating dangerous substances from wood and/or wooden materiais according to this invention.
  • the method involves shredding the contaminated wood and/or wooden material to a maximum size of 1,000 cm 3 , followed by rinsing with a solution of water containing potassium or sodium soap, and/or a surfactant, and/or sodium hydroxide, and/or potassium hydroxide, and/or calcium hydroxide at a minimum concentration of 0.5% by weight and a temperature of at least 15°C.
  • the cellulose and lignin in the wood or wooden material absorb the water mixture, leading to the softening of cellulose and lignin fibers. Simultaneously, toxic organic substances or volatile inorganic substances, particularly from the group of polychlorinated biphenyls, polycyclic aromatic hydrocarbons, arenes, and aliphatic compounds, are released.
  • saturated and/or superheated steam can be used for decontamination.
  • This method of the decontamination of dangerous substances from wood and/or wooden materiais preserves the material's mass and structure while achieving low energy consumption throughout the process.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Processing Of Solid Wastes (AREA)
PCT/CZ2024/000032 2023-12-29 2024-12-28 A method of the decontamination of dangerous substances from wood and/or wooden materials Pending WO2025140755A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2023-517A CZ310417B6 (cs) 2023-12-29 2023-12-29 Způsob dekontaminace nebezpečných látek ze dřeva a/nebo dřevěných materiálů
CZPV2023-517 2023-12-29

Publications (1)

Publication Number Publication Date
WO2025140755A1 true WO2025140755A1 (en) 2025-07-03

Family

ID=94685355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2024/000032 Pending WO2025140755A1 (en) 2023-12-29 2024-12-28 A method of the decontamination of dangerous substances from wood and/or wooden materials

Country Status (2)

Country Link
CZ (1) CZ310417B6 (cs)
WO (1) WO2025140755A1 (cs)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402015A1 (de) * 1994-01-19 1995-07-20 Tech Wissenschaftliche Ges Mbh Verfahren zur Dekontaminierung von zerkleinerten technischen Hölzern für Recyclingsprozesse
WO2000074909A1 (en) * 1999-06-04 2000-12-14 Enigma N.V. Method for extracting and recycling waste chemically treated wood
CN102225563A (zh) * 2011-04-27 2011-10-26 信和光伏硅材料（福建）有限公司 木片洁净化处理的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9702750L (sv) * 1997-07-18 1998-10-05 Torgny A Mellin Förfaringssätt för separering av förorenande ämnen från ett med det förorenande ämnet förorenat material
CZ309369B6 (cs) * 2021-01-26 2022-10-12 IMPEX TRADE CZ, s.r.o. Způsob dekontaminace nebezpečných látek z pevných materiálů
CZ309974B6 (cs) * 2022-10-31 2024-03-20 Česká zemědělská univerzita v Praze Způsob úpravy recyklovaného dřeva pro snížení emise těkavých organických látek v něm obsažených

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402015A1 (de) * 1994-01-19 1995-07-20 Tech Wissenschaftliche Ges Mbh Verfahren zur Dekontaminierung von zerkleinerten technischen Hölzern für Recyclingsprozesse
WO2000074909A1 (en) * 1999-06-04 2000-12-14 Enigma N.V. Method for extracting and recycling waste chemically treated wood
CN102225563A (zh) * 2011-04-27 2011-10-26 信和光伏硅材料（福建）有限公司 木片洁净化处理的方法

Also Published As

Publication number Publication date
CZ2023517A3 (cs) 2025-05-28
CZ310417B6 (cs) 2025-05-28

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