FR2873848B1 - METHOD FOR DECONTAMINATING LEAD OBJECTS - Google Patents
METHOD FOR DECONTAMINATING LEAD OBJECTSInfo
- Publication number
- FR2873848B1 FR2873848B1 FR0451756A FR0451756A FR2873848B1 FR 2873848 B1 FR2873848 B1 FR 2873848B1 FR 0451756 A FR0451756 A FR 0451756A FR 0451756 A FR0451756 A FR 0451756A FR 2873848 B1 FR2873848 B1 FR 2873848B1
- Authority
- FR
- France
- Prior art keywords
- objects
- rinsing
- solution
- lead
- immersed
- 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.)
- Expired - Fee Related
Links
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
- G21F9/28—Treating solids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
-
- 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
- G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
-
- 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
- G21F9/28—Treating solids
- G21F9/30—Processing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fats And Perfumes (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The procedure consists of placing the lead or lead alloy objects, such as nuclear reactor screen blocks, in contact with an alkaline aqueous solution, rinsing with water or an aqueous rinsing solution, followed by contact with an acid aqueous solution and rinsing again. The alkaline solution is of soda or potassium, preferably in a 30 per cent concentration and at a temperature of 60 degrees C, in which the objects are immersed for 10 to 80 minutes as it is agitated. The acid solution is of nitric or acetic acid of similar concentration, at ambient temperature, in which the objects are immersed for preferably 30 minutes. The final rinsing stage is followed by drying.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0451756A FR2873848B1 (en) | 2004-08-02 | 2004-08-02 | METHOD FOR DECONTAMINATING LEAD OBJECTS |
EP05107043A EP1624466B1 (en) | 2004-08-02 | 2005-07-29 | Process for decontamination of objects made from lead |
DE602005006200T DE602005006200T2 (en) | 2004-08-02 | 2005-07-29 | Method for decontaminating lead objects |
AT05107043T ATE393454T1 (en) | 2004-08-02 | 2005-07-29 | METHOD FOR DECONTAMINATING LEAD ITEMS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0451756A FR2873848B1 (en) | 2004-08-02 | 2004-08-02 | METHOD FOR DECONTAMINATING LEAD OBJECTS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2873848A1 FR2873848A1 (en) | 2006-02-03 |
FR2873848B1 true FR2873848B1 (en) | 2006-11-17 |
Family
ID=34947311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0451756A Expired - Fee Related FR2873848B1 (en) | 2004-08-02 | 2004-08-02 | METHOD FOR DECONTAMINATING LEAD OBJECTS |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1624466B1 (en) |
AT (1) | ATE393454T1 (en) |
DE (1) | DE602005006200T2 (en) |
FR (1) | FR2873848B1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3669758A (en) | 1968-03-20 | 1972-06-13 | Gen Electric | Process for removing contaminants from zirconium surfaces |
DE2333516C3 (en) | 1973-07-02 | 1979-05-03 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Decontaminants for metallic surfaces and methods of decontamination using the same |
FR2599543B1 (en) | 1986-05-27 | 1992-01-17 | Commissariat Energie Atomique | PROCESS FOR DECONTAMINATION OF SOLID MATERIALS CONTAMINATED BY CONTAMINANT ELEMENTS, IN PARTICULAR BY RADIOACTIVE ELEMENTS SUCH AS RUTHENIUM |
FR2641895A1 (en) * | 1989-01-19 | 1990-07-20 | Commissariat Energie Atomique | METHOD FOR RADIOACTIVE DECONTAMINATION OF METAL SURFACE, PARTICULARLY PORTIONS OF PRIMARY CIRCUITS OF WATER-COOLED NUCLEAR REACTORS |
CH682023A5 (en) * | 1990-10-26 | 1993-06-30 | Recytec Sa | |
GB9325323D0 (en) | 1993-12-10 | 1994-02-16 | British Nuclear Fuels Plc | Decontamination of metals |
US5678232A (en) * | 1995-07-31 | 1997-10-14 | Corpex Technologies, Inc. | Lead decontamination method |
US5591270A (en) | 1995-07-31 | 1997-01-07 | Corpex Technologies, Inc. | Lead oxide removal method |
-
2004
- 2004-08-02 FR FR0451756A patent/FR2873848B1/en not_active Expired - Fee Related
-
2005
- 2005-07-29 AT AT05107043T patent/ATE393454T1/en not_active IP Right Cessation
- 2005-07-29 DE DE602005006200T patent/DE602005006200T2/en active Active
- 2005-07-29 EP EP05107043A patent/EP1624466B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE602005006200T2 (en) | 2009-07-09 |
EP1624466A1 (en) | 2006-02-08 |
FR2873848A1 (en) | 2006-02-03 |
DE602005006200D1 (en) | 2008-06-05 |
EP1624466B1 (en) | 2008-04-23 |
ATE393454T1 (en) | 2008-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2754021A1 (en) | Method for generating a microbial deactivation fluid in an apparatus for deactivating instruments and devices | |
EP1220233A3 (en) | Chemical decontamination method and treatment method and apparatus of chemical decontamination solution | |
GEP20135738B (en) | Method and apparatus for refining coal | |
KR970074980A (en) | Hydrogen Peroxide Pickling in Stainless Steel | |
FR2873848B1 (en) | METHOD FOR DECONTAMINATING LEAD OBJECTS | |
CN102589947B (en) | Preparation method of madrepore skeleton sample for being suitable for observing skeleton minute structure and researching environment record of madrepore | |
DK1658494T3 (en) | A method for in vitro titration of an NCTA and its use in a method for the evaluation and / or monitoring of a biological product production method | |
RU2008129775A (en) | METHODS AND SYSTEMS FOR THE PROCESSING OF COMPLEX FORMED DEVICES PRODUCED FROM HYDROGELS | |
HUP0201234A2 (en) | Method for nuclear power plant decontamination | |
CN104819972B (en) | A kind of method that utilization biological elements detect trace bivalent cupric ion | |
DK200800421A (en) | Organic snail pesticide | |
ATE525496T1 (en) | CLEANING METHOD FOR REMOVAL OF DEPOSITS CONTAINING MAGNETITE FROM A PRESSURE VESSEL OF A POWER PLANT | |
JP2000331977A5 (en) | ||
CN205820979U (en) | A kind of sewage biological treatment system nitrification ability quick-restoring device | |
RU2003105728A (en) | COMPOSITION 102A FOR DEMERCURIZATION OF OBJECTS AFFECTED BY MERCURY AND METHOD OF ITS APPLICATION | |
CN115522064A (en) | Novel reaction method for dissolving gold | |
SU1756274A1 (en) | Method of recovering thallium from acidic solutions | |
Kamgaing et al. | Calculation of the calco-carbonic equilibrium curve of waters of pH 8. 3 Application to the chemical softening of waters to the ph of a pure solution of hydrogen carbonate | |
TW200611879A (en) | Method used to process the organic and/or inorganic substance in water | |
RU2005102033A (en) | METHOD FOR SORPTION OF MANGANESE (VII) IONS FROM AQUEOUS SOLUTION | |
RU2005100532A (en) | METHOD FOR OBTAINING THE INCLUDED MICA | |
Pätsch et al. | 150 years of ecosystem evolution in the North Sea-from pristine conditions to acidification | |
Nakai et al. | Observation of corrosion fatigue process in 13 Cr stainless steel by means of AFM | |
RU2003110857A (en) | WATER DISINFECTION METHOD | |
Xiang | Application of Modified Fly Ash in Decoloration of Wastewater from Antibiotic Production |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20130430 |