EP0060314A1 - Procédé pour décontaminer des objets - Google Patents

Procédé pour décontaminer des objets Download PDF

Info

Publication number: EP0060314A1
Authority: EP; European Patent Office
Prior art keywords: layer; contamination; connection; carrier layer; liability
Prior art date: 1981-03-18
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

EP19810102007

Other languages

German (de)

English (en)

Other versions

EP0060314B1 (fr

Inventor

Herbert Dr. Chem. Münnich

Eberhard Dr. Ing. Fischer

Günter Dr. Schröder

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.)

Carl Bechem GmbH

Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH

Original Assignee

Carl Bechem GmbH

Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH

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.)

1981-03-18

Filing date

1981-03-18

Publication date

1982-09-22

1981-03-18 Application filed by Carl Bechem GmbH, Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH filed Critical Carl Bechem GmbH

1981-03-18 Priority to DE8181102007T priority Critical patent/DE3172473D1/de

1981-03-18 Priority to EP19810102007 priority patent/EP0060314B1/fr

1982-03-17 Priority to JP4097282A priority patent/JPS57161700A/ja

1982-09-22 Publication of EP0060314A1 publication Critical patent/EP0060314A1/fr

1985-10-02 Application granted granted Critical

1985-10-02 Publication of EP0060314B1 publication Critical patent/EP0060314B1/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 23
230000008569 process Effects 0.000 title description 5
238000011109 contamination Methods 0.000 claims abstract description 29
238000005202 decontamination Methods 0.000 claims abstract description 10
230000003588 decontaminative effect Effects 0.000 claims abstract description 8
238000004806 packaging method and process Methods 0.000 claims abstract description 8
239000000126 substance Substances 0.000 claims abstract description 8
239000000463 material Substances 0.000 claims description 5
239000002253 acid Substances 0.000 claims description 4
230000001680 brushing effect Effects 0.000 claims description 4
239000000356 contaminant Substances 0.000 claims description 4
230000005855 radiation Effects 0.000 claims description 4
238000005507 spraying Methods 0.000 claims description 4
238000005299 abrasion Methods 0.000 claims description 3
238000004026 adhesive bonding Methods 0.000 claims description 3
238000007598 dipping method Methods 0.000 claims description 3
238000003466 welding Methods 0.000 claims description 3
238000007664 blowing Methods 0.000 claims description 2
238000010422 painting Methods 0.000 claims description 2
230000003993 interaction Effects 0.000 claims 1
239000002131 composite material Substances 0.000 abstract 1
238000005516 engineering process Methods 0.000 description 4
239000002699 waste material Substances 0.000 description 4
238000011161 development Methods 0.000 description 3
230000018109 developmental process Effects 0.000 description 3
238000005406 washing Methods 0.000 description 3
150000007513 acids Chemical class 0.000 description 2
238000009792 diffusion process Methods 0.000 description 2
239000007788 liquid Substances 0.000 description 2
230000002285 radioactive effect Effects 0.000 description 2
239000000941 radioactive substance Substances 0.000 description 2
239000000243 solution Substances 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
FZNCGRZWXLXZSZ-CIQUZCHMSA-N Voglibose Chemical compound OCC(CO)N[C@H]1C[C@](O)(CO)[C@@H](O)[C@H](O)[C@H]1O FZNCGRZWXLXZSZ-CIQUZCHMSA-N 0.000 description 1
239000003929 acidic solution Substances 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
230000009471 action Effects 0.000 description 1
239000012670 alkaline solution Substances 0.000 description 1
239000002585 base Substances 0.000 description 1
230000008901 benefit Effects 0.000 description 1
210000004027 cell Anatomy 0.000 description 1
210000002421 cell wall Anatomy 0.000 description 1
238000001311 chemical methods and process Methods 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
238000007796 conventional method Methods 0.000 description 1
239000003599 detergent Substances 0.000 description 1
239000011888 foil Substances 0.000 description 1
239000012634 fragment Substances 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000000383 hazardous chemical Substances 0.000 description 1
231100000206 health hazard Toxicity 0.000 description 1
229910010272 inorganic material Inorganic materials 0.000 description 1
239000011147 inorganic material Substances 0.000 description 1
230000010534 mechanism of action Effects 0.000 description 1
244000005700 microbiome Species 0.000 description 1
230000004001 molecular interaction Effects 0.000 description 1
229920006280 packaging film Polymers 0.000 description 1
239000012785 packaging film Substances 0.000 description 1
231100000614 poison Toxicity 0.000 description 1
239000012857 radioactive material Substances 0.000 description 1
238000007790 scraping Methods 0.000 description 1
238000002791 soaking Methods 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000010408 sweeping Methods 0.000 description 1
238000007669 thermal treatment Methods 0.000 description 1
239000003440 toxic substance Substances 0.000 description 1
230000001960 triggered effect Effects 0.000 description 1
239000002966 varnish Substances 0.000 description 1

Images

Classifications

- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof

Definitions

the invention relates to a method according to the preamble of claim 1.
the present invention is therefore based on the object of specifying a method with which inorganic materials deposited, applied or adhered to surfaces of objects, for example metallic and non-metallic surfaces, bodies and apparatus such as cells, machines, tools, devices, building parts, vehicles, etc. or organic, in particular also radioactive or toxic substances or living organisms can be removed.
objects for example metallic and non-metallic surfaces, bodies and apparatus such as cells, machines, tools, devices, building parts, vehicles, etc. or organic, in particular also radioactive or toxic substances or living organisms can be removed.
the invention enables safe and rapid decontamination of the surface of objects.
inorganic and organic substances and living microorganisms in particular radioactive contamination, for example from process equipment and cell walls, can be prevented. and can be eliminated quickly, inexpensively and with significantly reduced radiation exposure for the personnel compared to conventional methods.
the previously common decontamination process is very time-consuming due to repeated washing of the surfaces and causes long downtimes of the system.
the method according to the invention is not very time-consuming and requires negligible downtimes.
the decontaminated surfaces can be re-coated with a new contamination carrier layer immediately after removal of the contamination-containing multiple layer (layer package) and are thus very quickly available again for operational use.
the personnel involved in the decontamination and the subsequent removal of the cleaning waste are frequently exposed to health hazards in the previous methods, which are largely eliminated in the present invention, since the harmful materials are firmly integrated between the layers and back contamination is prevented.
the process is essentially chemical-mechanical and can be easily automated.
Fig. 1 the individual process steps of applying and removing the individual layers are shown.
a dense contamination carrier layer 6 is applied to the surfaces of an object 2 to be treated in a suitable manner, for example by spraying, dipping, gluing, painting, welding, etc. (FIG. 1).
the surfaces in question are previously prepared or pretreated in such a way that a defined connection or adhesion corresponding to the respective area of application is achieved between them and the contamination carrier layer 6.
a layer 4 for example a primer, is applied to the object 2 to impart the connection or adhesion.
the pretreatment of the surfaces can also be carried out, for example, by removing material, by chemical conversion of the molecular interfaces or the like. It only has to be ensured that an adequate connection or liability is thereby conveyed.
a further dense, covering packaging layer 10 is applied to the contaminated carrier layer 6 in a suitable manner, for example by spraying, dipping, brushing, gluing, welding, etc. (FIG. 3 ).
a material is used for the contamination carrier layer 10 through which a special physicochemical Mechanism of action is triggered. This is based on a molecular interaction between the layer lo and the layer 6 and between the layer 6 and the layer 4, thereby causing an intensive connection or adhesion between the packaging layer lo and the connection (liability) mediation layer 4 and at the same time lifts the original one Connection or adhesion between layers 6 and 4 in whole or in part.
the decontamination process described above works with a plurality of removable layers applied one above the other, depending on the type of pretreatment of the object 2 to be decontaminated, a two- or three-layer technique can be used.
the connection (liability) mediation layer 4 is omitted.
the contamination carrier layer 6 also takes on this task.
the first two layers 4 and 6 and in the two-layer technology, layer 6 represent the operating state.
Layer 4 is preferably a chlorine-free primer, which should be acid-resistant, abrasion-resistant and radiation-resistant.
the contamination carrier layer 6 is preferably a highly stable product with a likewise high radiation resistance.
connection (liability) mediation layer 4 and the contamination carrier layer 6 are applied before the contamination (FIG. 1).
These two layers can be special varnishes.
the use of suitable foils is also possible.
the layer package 1 0 , 8, 6 can detach itself or be scratched and, for example with compressed air or mechanically, the double layer 6, 1o with the fixed, integrated one Contamination 8 can be easily removed (Fig. 4). By including the contamination, back contamination is reliably prevented.
the contamination carrier layer 6 is applied again to the surface of the object 2 or to the connection (liability) mediation layer 4, and the process can be repeated (as often as required) (FIG. 5).

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Food Science & Technology (AREA)
Physics & Mathematics (AREA)
General Engineering & Computer Science (AREA)
High Energy & Nuclear Physics (AREA)
Application Of Or Painting With Fluid Materials (AREA)

EP19810102007 1981-03-18 1981-03-18 Procédé pour décontaminer des objets Expired EP0060314B1 (fr)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
DE8181102007T DE3172473D1 (en)	1981-03-18	1981-03-18	Process for decontaminating objects
EP19810102007 EP0060314B1 (fr)	1981-03-18	1981-03-18	Procédé pour décontaminer des objets
JP4097282A JPS57161700A (en)	1981-03-18	1982-03-17	Method of removing poison of material

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP19810102007 EP0060314B1 (fr)	1981-03-18	1981-03-18	Procédé pour décontaminer des objets

Publications (2)

Publication Number	Publication Date
EP0060314A1 true EP0060314A1 (fr)	1982-09-22
EP0060314B1 EP0060314B1 (fr)	1985-10-02

Family

ID=8187614

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19810102007 Expired EP0060314B1 (fr)	1981-03-18	1981-03-18	Procédé pour décontaminer des objets

Country Status (3)

Country	Link
EP (1)	EP0060314B1 (fr)
JP (1)	JPS57161700A (fr)
DE (1)	DE3172473D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0185393A1 (fr) *	1984-12-21	1986-06-25	Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.	Procédé pour décontaminer la surface d'un objet
EP0566493A1 (fr) *	1992-04-17	1993-10-20	Commissariat A L'energie Atomique	Procédé de décontamination de la couche superficielle d'un sol recouvert de particules polluantes et solution de décontamination
WO1997030457A1 (fr) *	1996-02-12	1997-08-21	Siemens Aktiengesellschaft	Fut contenant un corps presentant une contamination toxique et/ou radioactive, et procede de production dudit fut
DE19521236C2 (de) *	1995-06-10	1999-08-05	Nukem Gmbh	Verfahren zum Dekontaminieren der Begrenzungen von geschlossenen Bereichen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2877131A (en) *	1946-05-06	1959-03-10	Donald C Overholt	Method and coating composition for protecting and decontaminating surfaces
GB848588A (en) *	1959-06-05	1960-09-21	Atomic Energy Authority Uk	Method for separating particles of radioactive material from a solid surface
FR1303673A (fr) *	1960-08-16	1962-09-14	Atomic Energy Authority Uk	Agents d'assainissement pour purifier des surfaces contaminées par des matières radio-actives
GB930370A (en) *	1960-08-16	1963-07-03	Atomic Energy Authority Uk	Cleansing agent for radioactive contamination

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4928880A (fr) *	1972-07-14	1974-03-14

1981
- 1981-03-18 EP EP19810102007 patent/EP0060314B1/fr not_active Expired
- 1981-03-18 DE DE8181102007T patent/DE3172473D1/de not_active Expired
1982
- 1982-03-17 JP JP4097282A patent/JPS57161700A/ja active Pending

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2877131A (en) *	1946-05-06	1959-03-10	Donald C Overholt	Method and coating composition for protecting and decontaminating surfaces
GB848588A (en) *	1959-06-05	1960-09-21	Atomic Energy Authority Uk	Method for separating particles of radioactive material from a solid surface
FR1303673A (fr) *	1960-08-16	1962-09-14	Atomic Energy Authority Uk	Agents d'assainissement pour purifier des surfaces contaminées par des matières radio-actives
GB930370A (en) *	1960-08-16	1963-07-03	Atomic Energy Authority Uk	Cleansing agent for radioactive contamination

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0185393A1 (fr) *	1984-12-21	1986-06-25	Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.	Procédé pour décontaminer la surface d'un objet
EP0566493A1 (fr) *	1992-04-17	1993-10-20	Commissariat A L'energie Atomique	Procédé de décontamination de la couche superficielle d'un sol recouvert de particules polluantes et solution de décontamination
FR2690163A1 (fr) *	1992-04-17	1993-10-22	Commissariat Energie Atomique	Procédé de décontamination de la couche superficielle d'un sol recouvert de particules polluantes et solution de décontamination.
DE19521236C2 (de) *	1995-06-10	1999-08-05	Nukem Gmbh	Verfahren zum Dekontaminieren der Begrenzungen von geschlossenen Bereichen
WO1997030457A1 (fr) *	1996-02-12	1997-08-21	Siemens Aktiengesellschaft	Fut contenant un corps presentant une contamination toxique et/ou radioactive, et procede de production dudit fut

Also Published As

Publication number	Publication date
EP0060314B1 (fr)	1985-10-02
JPS57161700A (en)	1982-10-05
DE3172473D1 (en)	1985-11-07

Legal Events

Date	Code	Title	Description
1982-07-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1982-09-22	AK	Designated contracting states	Designated state(s): BE CH DE FR GB
1983-05-25	17P	Request for examination filed	Effective date: 19830308
1985-08-02	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-10-02	AK	Designated contracting states	Designated state(s): BE CH DE FR GB LI
1985-11-07	REF	Corresponds to:	Ref document number: 3172473 Country of ref document: DE Date of ref document: 19851107
1985-11-08	ET	Fr: translation filed
1986-07-31	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-07-31	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-09-17	26N	No opposition filed
1992-03-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19920310 Year of fee payment: 12 Ref country code: FR Payment date: 19920310 Year of fee payment: 12
1992-03-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19920327 Year of fee payment: 12
1992-05-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19920514 Year of fee payment: 12
1992-05-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19920515 Year of fee payment: 12
1993-03-18	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19930318
1993-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Effective date: 19930331 Ref country code: CH Effective date: 19930331 Ref country code: BE Effective date: 19930331
1993-09-30	BERE	Be: lapsed	Owner name: CARL BECHEM G.M.B.H. Effective date: 19930331 Owner name: DEUTSCHE G- FUR WIEDERAUFARBEITUNG VON KERNBRENNS Effective date: 19930331
1993-11-17	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19930318
1993-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19931130
1993-11-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1993-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19931201
1994-01-28	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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