EP0499696A2 - Procédé pour la désinfection des surfaces et des objets solides - Google Patents

Procédé pour la désinfection des surfaces et des objets solides Download PDF

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Publication number
EP0499696A2
EP0499696A2 EP91119904A EP91119904A EP0499696A2 EP 0499696 A2 EP0499696 A2 EP 0499696A2 EP 91119904 A EP91119904 A EP 91119904A EP 91119904 A EP91119904 A EP 91119904A EP 0499696 A2 EP0499696 A2 EP 0499696A2
Authority
EP
European Patent Office
Prior art keywords
decontamination
molecular weight
alkali metal
low molecular
solution
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.)
Granted
Application number
EP91119904A
Other languages
German (de)
English (en)
Other versions
EP0499696A3 (fr
EP0499696B1 (fr
Inventor
Urs Prof. Dr. Riede
Hans Werner Dr. Kleffner
Bernhard Seubert
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.)
Ruetgers AG
Original Assignee
Ruetgerswerke AG
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 Ruetgerswerke AG filed Critical Ruetgerswerke AG
Publication of EP0499696A2 publication Critical patent/EP0499696A2/fr
Publication of EP0499696A3 publication Critical patent/EP0499696A3/fr
Application granted granted Critical
Publication of EP0499696B1 publication Critical patent/EP0499696B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • A62D2101/02—Chemical warfare substances, e.g. cholinesterase inhibitors

Definitions

  • the invention relates to a new method for decontamination of surfaces and objects contaminated with chemical hazardous substances, and to the means necessary for this.
  • it relates to a method and means for the decontamination of surfaces and objects which are contaminated with cholinesterase-inhibiting substances of the organophosphate type and / or with dermatotoxic substances of the dichlorodiethyl sulfide type.
  • pollutants dissolved in water are detoxified if 10 to 50 ppm of low molecular weight alkali metal aluminates per liter are added to the water.
  • organophosphates are in particular compounds of the structure wherein R1 and R2 are short-chain alkyl, alkoxy, alkylthio or amino groups and X is an easily removable group such as halogen, cyanide, phenoxy or thiol group.
  • the treated areas and objects are free of pollutants, and on the other hand the solutions contaminated with the detached pollutants are not toxic.
  • the method according to the invention for the decontamination of surfaces such as floors, walls, masonry and solid objects such as equipment, machines or clothing consists in treating them with a solution which contains low molecular weight alkali metal aluminates.
  • Aqueous solutions are preferably used.
  • organic, pollutant-containing particles up to 40% more contain water-compatible, organic solvents such as low mono- or polyhydric alcohols or ketones.
  • aqueous solutions or the solutions containing water and solvents can additionally contain one or more surfactants.
  • the surfactants can be both neutral and (in the case of purely aqueous solutions) anionic or cationic in nature. Their amount is in the range from 0.05 to 2% by weight, based on the finished solution.
  • Natural low-molecular alkali metal aluminates as known from DE-A 37 07 909 or DE-A 37 36 623 can be used and are effective in the agents according to the invention as well as synthetic by oxidation of polyhydric phenols in a weakly alkaline aqueous medium according to DE-A 37 07 910 manufactured low molecular weight alkali aluminates. These are dark brown, water-soluble products with an average molecular weight of 1,000, with a range from 300 to 1,500.
  • These low molecular weight alkali metal aluminates are present in the agents used according to the invention in an amount of 0.05 to 6% by weight, preferably in an amount of 0.5 to 5% by weight, particularly preferably in an amount of 1 to 2% by weight. , based on the finished solution.
  • the agents according to the invention are also stored and transported as a concentrate and are diluted to the desired concentration shortly before use.
  • a stainless steel plate (10 x 10 cm) is contaminated with 0.5 g parathion.
  • the plate After a contact time of 30 minutes, the plate is rinsed with 100 ml of distilled water and then placed in a vessel filled with 5 l of water and Daphnia magna as test organism. The survival of the test organisms is more than 24 hours.
  • Example 1 a test plate made of concrete (10 x 10 cm) is contaminated with 0.5 g Metasystox, then sprayed with 20 ml of a 1% aqueous solution of a low molecular weight alkali metal aluminate, rinsed off and the decontamination is tested using Daphnia magna.
  • the survival of the test organisms is more than 24 hours.

Landscapes

  • Business, Economics & Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Detergent Compositions (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP91119904A 1991-02-21 1991-11-22 Procédé pour la désinfection des surfaces et des objets solides Expired - Lifetime EP0499696B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105395A DE4105395A1 (de) 1991-02-21 1991-02-21 Verfahren und mittel zur dekontamination von flaechen und festen gegenstaenden
DE4105395 1991-02-21

Publications (3)

Publication Number Publication Date
EP0499696A2 true EP0499696A2 (fr) 1992-08-26
EP0499696A3 EP0499696A3 (fr) 1992-09-09
EP0499696B1 EP0499696B1 (fr) 1995-10-18

Family

ID=6425552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119904A Expired - Lifetime EP0499696B1 (fr) 1991-02-21 1991-11-22 Procédé pour la désinfection des surfaces et des objets solides

Country Status (6)

Country Link
US (1) US5271772A (fr)
EP (1) EP0499696B1 (fr)
AT (1) ATE129164T1 (fr)
DE (2) DE4105395A1 (fr)
ES (1) ES2033598T1 (fr)
GR (1) GR920300118T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037265A2 (fr) * 1995-05-26 1996-11-28 Arctech Inc. Procede d'elimination sans danger de matieres explosives et propulsives et procede de preparation de compositions fertilisantes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2622814C (fr) * 2005-09-19 2013-12-31 Terrenew, Llc Elimination d'huiles presentes sur des surfaces solides ou a la surface de l'eau au moyen d'une substance a fort taus d'humate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810788A (en) * 1966-02-15 1974-05-14 P Steyermark Method for decontaminating chemical warfare agents
WO1989000463A1 (fr) * 1987-07-15 1989-01-26 Johansing P G Jr Procede de sequestration de biphenyles polyhalogenes dans des dechets solides
GB2215603A (en) * 1988-02-11 1989-09-27 Nat Energy Council Composition having bacteriocidal or bacteriostatic activity
DE4022795A1 (de) * 1990-07-18 1992-01-23 Ruetgerswerke Ag Verfahren zum detoxifizieren von wasser und mittel hierzu

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707909A1 (de) * 1987-03-12 1988-09-22 Ruetgerswerke Ag Niedermolekulare alkalihuminate, verfahren zu ihrer herstellung und verwendung
DE3736623A1 (de) * 1987-10-29 1989-05-11 Ruetgerswerke Ag Verfahren zur herstellung einer huminatfraktion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810788A (en) * 1966-02-15 1974-05-14 P Steyermark Method for decontaminating chemical warfare agents
WO1989000463A1 (fr) * 1987-07-15 1989-01-26 Johansing P G Jr Procede de sequestration de biphenyles polyhalogenes dans des dechets solides
GB2215603A (en) * 1988-02-11 1989-09-27 Nat Energy Council Composition having bacteriocidal or bacteriostatic activity
DE4022795A1 (de) * 1990-07-18 1992-01-23 Ruetgerswerke Ag Verfahren zum detoxifizieren von wasser und mittel hierzu

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 102, no. 21, 27. Mai 1985, Columbus, Ohio, US; abstract no. 180489X, S.GOLBS ET AL: 'Effect of humic acids on the acute toxicity of selected pesticides' Seite 181 ; *
SOVIET INVENTIONS ILLUSTRATED Section Ch, Week 8405, 14. März 1984 Derwent Publications Ltd., London, GB; Class C, Page 6, AN 84-027944/05 & SU-A-1 005 915 (MAGN MINE METAL INS) 23. März 1983 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037265A2 (fr) * 1995-05-26 1996-11-28 Arctech Inc. Procede d'elimination sans danger de matieres explosives et propulsives et procede de preparation de compositions fertilisantes
WO1996037265A3 (fr) * 1995-05-26 1996-12-27 Arctech Inc Procede d'elimination sans danger de matieres explosives et propulsives et procede de preparation de compositions fertilisantes

Also Published As

Publication number Publication date
ATE129164T1 (de) 1995-11-15
ES2033598T1 (es) 1993-04-01
EP0499696A3 (fr) 1992-09-09
EP0499696B1 (fr) 1995-10-18
DE4105395A1 (de) 1992-08-27
DE59106730D1 (de) 1995-11-23
US5271772A (en) 1993-12-21
GR920300118T1 (en) 1993-03-16

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