EP0499696A2 - Procédé pour la désinfection des surfaces et des objets solides - Google Patents
Procédé pour la désinfection des surfaces et des objets solides Download PDFInfo
- 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
Links
- 238000005202 decontamination Methods 0.000 title claims abstract description 15
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 14
- -1 alkali metal aluminates Chemical class 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 5
- 231100000125 dermatotoxic Toxicity 0.000 abstract description 2
- 230000000760 dermatotoxic effect Effects 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241001494246 Daphnia magna Species 0.000 description 2
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- ZVZQKNVMDKSGGF-UHFFFAOYSA-N 2-ethylsulfanylethoxy-dimethoxy-sulfanylidene-$l^{5}-phosphane Chemical compound CCSCCOP(=S)(OC)OC ZVZQKNVMDKSGGF-UHFFFAOYSA-N 0.000 description 1
- 102100033639 Acetylcholinesterase Human genes 0.000 description 1
- 108010022752 Acetylcholinesterase Proteins 0.000 description 1
- 102000003914 Cholinesterases Human genes 0.000 description 1
- 108090000322 Cholinesterases Proteins 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 229940022698 acetylcholinesterase Drugs 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004414 alkyl thio group Chemical group 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229940048961 cholinesterase Drugs 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- HAWPXGHAZFHHAD-UHFFFAOYSA-N mechlorethamine Chemical compound ClCCN(C)CCCl HAWPXGHAZFHHAD-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (1)
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810788A (en) * | 1966-02-15 | 1974-05-14 | P Steyermark | Method for decontaminating chemical warfare agents |
| DE3707909A1 (de) * | 1987-03-12 | 1988-09-22 | Ruetgerswerke Ag | Niedermolekulare alkalihuminate, verfahren zu ihrer herstellung und verwendung |
| WO1989000463A1 (fr) * | 1987-07-15 | 1989-01-26 | Johansing P G Jr | Procede de sequestration de biphenyles polyhalogenes dans des dechets solides |
| DE3736623A1 (de) * | 1987-10-29 | 1989-05-11 | Ruetgerswerke Ag | Verfahren zur herstellung einer huminatfraktion |
| DE3903773A1 (de) * | 1988-02-11 | 1989-09-14 | Nat Energy Council | Eine mischung mit bakteriozider oder bakteriostatischer aktivitaet |
| DE4022795A1 (de) * | 1990-07-18 | 1992-01-23 | Ruetgerswerke Ag | Verfahren zum detoxifizieren von wasser und mittel hierzu |
-
1991
- 1991-02-21 DE DE4105395A patent/DE4105395A1/de not_active Withdrawn
- 1991-11-22 ES ES199191119904T patent/ES2033598T1/es active Pending
- 1991-11-22 DE DE59106730T patent/DE59106730D1/de not_active Expired - Fee Related
- 1991-11-22 EP EP91119904A patent/EP0499696B1/fr not_active Expired - Lifetime
- 1991-11-22 AT AT91119904T patent/ATE129164T1/de not_active IP Right Cessation
-
1992
- 1992-02-03 US US07/829,952 patent/US5271772A/en not_active Expired - Fee Related
-
1993
- 1993-03-16 GR GR920300118T patent/GR920300118T1/el unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP0499696A3 (fr) | 1992-09-09 |
| US5271772A (en) | 1993-12-21 |
| DE4105395A1 (de) | 1992-08-27 |
| DE59106730D1 (de) | 1995-11-23 |
| GR920300118T1 (en) | 1993-03-16 |
| EP0499696B1 (fr) | 1995-10-18 |
| ES2033598T1 (es) | 1993-04-01 |
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| 17P | Request for examination filed |
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| ITCL | It: translation for ep claims filed |
Representative=s name: BARZANO' E ZANARDO ROMA S.P.A. |
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| TCNL | Nl: translation of patent claims filed | ||
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