FR2905881A1 - Removing asbestos from substrate surface, to allow safe destruction or reuse of substrate, involves degreasing, coating with hydrochloric acid-based gel and ultrasonicating - Google Patents
Removing asbestos from substrate surface, to allow safe destruction or reuse of substrate, involves degreasing, coating with hydrochloric acid-based gel and ultrasonicating Download PDFInfo
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- FR2905881A1 FR2905881A1 FR0608213A FR0608213A FR2905881A1 FR 2905881 A1 FR2905881 A1 FR 2905881A1 FR 0608213 A FR0608213 A FR 0608213A FR 0608213 A FR0608213 A FR 0608213A FR 2905881 A1 FR2905881 A1 FR 2905881A1
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- Prior art keywords
- asbestos
- asbestos removal
- hydrochloric acid
- dried
- removal process
- 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.)
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- 239000010425 asbestos Substances 0.000 title claims abstract description 34
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 34
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000011248 coating agent Substances 0.000 title claims abstract description 4
- 238000000576 coating method Methods 0.000 title claims abstract description 4
- 230000006378 damage Effects 0.000 title claims description 3
- 239000000758 substrate Substances 0.000 title abstract 3
- 238000005238 degreasing Methods 0.000 title abstract 2
- -1 involves degreasing Substances 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000004094 surface-active agent Substances 0.000 claims abstract 3
- 239000000463 material Substances 0.000 claims description 42
- 239000000499 gel Substances 0.000 claims description 10
- 108010010803 Gelatin Proteins 0.000 claims description 6
- 239000008273 gelatin Substances 0.000 claims description 6
- 229920000159 gelatin Polymers 0.000 claims description 6
- 235000019322 gelatine Nutrition 0.000 claims description 6
- 235000011852 gelatine desserts Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 claims description 2
- 239000013527 degreasing agent Substances 0.000 claims 1
- 238000005237 degreasing agent Methods 0.000 claims 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910052612 amphibole Inorganic materials 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 125000002734 organomagnesium group Chemical group 0.000 description 2
- 229910052611 pyroxene Inorganic materials 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 208000033116 Asbestos intoxication Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- LVCYXJFCPQPYNI-UHFFFAOYSA-N [Mg].[Fe].[Na] Chemical compound [Mg].[Fe].[Na] LVCYXJFCPQPYNI-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052891 actinolite Inorganic materials 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 229910052885 anthophyllite Inorganic materials 0.000 description 1
- 206010003441 asbestosis Diseases 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 229910052889 tremolite Inorganic materials 0.000 description 1
- ULEFFCDROVNTRO-UHFFFAOYSA-N trimagnesium;disodium;dihydroxy(oxo)silane;iron(3+) Chemical compound [Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Fe+3].[Fe+3].O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O.O[Si](O)=O ULEFFCDROVNTRO-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5016—Acids
-
- 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
- B09B3/0066—Disposal of asbestos
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
1 La présente invention concerne un procédé constitué par un gel appliquéThe present invention relates to a process consisting of an applied gel
sur la surface d'un matériau contenant de l'amiante ou recouvert d'un crépi. Le mélange appliqué se présente sous forme de gel à base d'acide chlorhydrique ou des organos magnésiens chlorés et des tensions actifs. Le gel est appliqué au moyen d'un rouleau ou d'un pinceau sur la surface du matériel à désamianter. Cette surface est soumise à un champ d'ultrasons de fréquence supérieure à vingt kilohertz au moyen d'un transducteur modulaire pendant une durée proportionnelle au 1/100 de l'épaisseur du matériel à désamianter. on the surface of a material containing asbestos or covered with plaster. The applied mixture is in the form of hydrochloric acid-based gel or chlorinated magnesium organos and active tensions. The gel is applied by means of a roller or a brush on the surface of the material to be dismantled. This surface is subjected to an ultrasound field of frequency greater than twenty kilohertz by means of a modular transducer for a duration proportional to 1/100 of the thickness of the material to be dismantled.
Le traitement terminé les matériaux issus du matériel sont nettoyés et rincés abondamment à l'eau. Rappelons, que l'amiante se présente sous deux formes : - le silicate de magnésium hydraté de formule stoechiométrique théorique Mg3(Si)2(0)5(OH)4 dénommé chrysolite facilement attaqué par l'acide chlorhydrique concentré. les amphiboles constitués de silicates hydratés de fer magnésium sodium ou de calcium. L'amiante amphibole comporte cinq variétés l'anthophyllite, l'amosite, l'actinolite, la trémolite et la crocidolite. Du point vu cristallographique les amphiboles particulièrement résistant aux acides et aux bases appartiennent à une famille de macroanion monodimensionnelle à structure fibreuse dont les hauts polymères organiques rattachés à la forme linéaire des macromolécules qui les forment. Leur résistance mécanique, à la chaleur et ses caractéristiques d'être non conducteur de- 2905881 5 10 15 20 25 2 l'électricité ont favorisé leur emploi dans les matériaux utilisés en travaux publics. Aussi ces types d'amiante sont utilisés dans l'isolation thermique et électrique (tresses avec un tissu) ou encore sous forme de plaques mélangées à du mortier et ciment pour constituer des canalisations résistantes à la corrosion ou comme charge minéral comme certaines peintures, vernis, colle, mastic, plastiques, élastomère ou pour fabriquer des joints. Génératrice de maladie (asbestose) elles ont été interdites d'utilisation en Europe depuis 1997. Cependant de nombreuses installations en contiennent et constituent un danger permanent pour le personnel qui assure des travaux à proximité ou qui inhale les poussières lors des destructions mécaniques de ces éléments amiantés. Il est apparu important d'appliquer un procédé qui pourrait désamianter la surface du matériel afm de permettre à celui-ci de pouvoir être manipulé à la main ou stocké sur place sans risque de contamination de l'opérateur. L'amiante est dépourvue de propriété de migration ou diffusion dans les matériaux. Depuis 1997 et pour protéger le personnel environnant et notamment les travailleurs il est recommandé soit de confiner les matériaux amiantés dans un emballage étanche afm qu'ils n'émettent aucune fibre soit de retirer les matériaux amiantés ou de les désamianter (solution souvent prescrite). The finished treatment materials from the material are cleaned and rinsed thoroughly with water. Recall that asbestos comes in two forms: - hydrated magnesium silicate of theoretical stoichiometric formula Mg3 (Si) 2 (0) 5 (OH) 4 called chrysolite easily attacked by concentrated hydrochloric acid. amphiboles consisting of hydrated silicates of iron magnesium sodium or calcium. Amphibole asbestos has five varieties anthophyllite, amosite, actinolite, tremolite and crocidolite. From a crystallographic point of view, amphiboles particularly resistant to acids and bases belong to a family of macroanion monodimensional fibrous structure whose high organic polymers attached to the linear form of the macromolecules that form them. Their mechanical resistance to heat and their characteristics of non-conductive electricity have favored their use in materials used in public works. Also these types of asbestos are used in the thermal and electrical insulation (braids with a fabric) or in the form of plates mixed with mortar and cement to constitute pipelines resistant to the corrosion or like mineral charge like certain paints, varnishes , glue, putty, plastics, elastomer or to make joints. As a disease generator (asbestosis), they have been banned from use in Europe since 1997. However, many installations contain them and constitute a permanent danger for personnel who work nearby or who inhale dust during the mechanical destruction of these elements. asbestos. It appeared important to apply a process that could deamify the surface of the equipment to allow it to be handled by hand or stored on site without risk of contamination of the operator. Asbestos is devoid of property of migration or diffusion in materials. Since 1997 and to protect the surrounding personnel and especially the workers it is recommended either to confine the asbestos materials in a tight packing so that they emit no fiber either to remove the asbestos materials or to dismantle them (solution often prescribed).
2905881 5 10 15 20 3 Chimiquement on a observé que l'amiante amphibole ou chrysolite se présente sous forme lamellaire cristalline dont les réseaux sont reliés par des cations alcalins et alcalinos terreux et notamment le magnésium. Lorsque l'on traite ces matériaux au moyen d'acide chlorhydrique ou des chlorures organos magnésien acides, les alcalinos terreux de ces matériaux appartiennent et se dissolvent détruisant la structure fibreuse de l'amiante (amphibole et chrysolite) qui apparaissent sous forme de silicate en fibres et inoffensifs. L'acide chlorhydrique et les chlorures organos magnésien peuvent être avantageusement remplacé par un mélange trichloracétique considéré comme un acide fort. La présente invention concerne l'application des méthodes précitées à la technique de désamiantage des matériaux sur une faible épaisseur. Le désamiantage obtenu sur ces matériaux sont soit maintenus en l'état sur place soit manipulés et détruits sans danger dans une installation chauffée à plus de 800C . Selon les propriétés de l'amiante celle-ci peut être dégradée à 780C et transformée en pyroxènes, magnétites, hématites, silices non toxiques. Dans un premier exemple nous allons décrire les méthodes de désamiantage.Chemically it has been observed that amphibole asbestos or chrysolite is in crystalline lamellar form whose networks are connected by alkaline and alkaline earth cations and in particular magnesium. When these materials are treated with hydrochloric acid or organo magnesium acid chlorides, the earth alkaloids of these materials belong and dissolve destroying the fibrous structure of asbestos (amphibole and chrysolite) which appear as silicate in the form of silicate. fibers and harmless. Hydrochloric acid and organo magnesium chlorides may advantageously be replaced by a trichloroacetic mixture considered as a strong acid. The present invention relates to the application of the above methods to the technique of asbestos removal of materials on a small thickness. Asbestos removal from these materials is either maintained on site or safely handled and destroyed in a facility heated above 800C. According to the properties of asbestos it can be degraded to 780C and converted into pyroxenes, magnetites, hematites, non-toxic silicas. In a first example we will describe the methods of asbestos removal.
25 5 10 15 4 2905881 Dans la première méthode, la surlàce du matériel à base d'amiante est nettoyée et dégraissée superficiellement au moyen d'un solvant non polaire du type trichloréthylène éventuellement tetrachioréthylène. La surface du matériel séché est recouvert au moyen d'un enduit composé de gélatine dissout dans une solution d'acide chlorhydrique douze fois molaire dans lequel on ajoute 1% de ten,sio actif du type acyle naphtalène sulfonique. Le gel appliqué à 40C est maintenu sur la surface du matériel est- soumis à un champ d'ultrasons au moyeu d'un transducteur ultrasonore. de 40 kilohertz. Le transducteur se déplace sur la plus grande partie de surface du matériel enduit de gel maintenu à 40C . Le traitement terminé et l'application des ultrasons ayant donnée satisfaction le matériau est rincé abondamment au moyen d'dau distillée.In the first method, the surface of the asbestos-based material is superficially cleaned and degreased by means of a non-polar solvent of the trichlorethylene or optionally tetrachlorethylene type. The surface of the dried material is coated with a gelatin compound coating dissolved in a twelve-fold molar hydrochloric acid solution in which 1% of active acyl naphthalene sulfonic acid is added. The gel applied to 40C is held on the surface of the material being subjected to an ultrasound field at the hub of an ultrasonic transducer. 40 kilohertz. The transducer travels over most of the surface of the gel coated material maintained at 40C. The finished treatment and the application of the ultrasounds having satisfied the material is rinsed abundantly with distilled dau.
20 25 Le matériau est ensuite séché à l'étuve, dépoussiéré, et stocké en l'état. L'amiante superficielle ayant disparue le matériau et matériel peuvent être manipulés et détruit au moyen d'un four porté à $00C . Le mélange en fusion est transformé en pyroxènes, magnétites, hématites et silices non toxiques.The material is then oven dried, dusted, and stored as is. Superficial asbestos having gone missing the material and material can be handled and destroyed by means of an oven raised to $ 00C. The melt is converted into pyroxenes, magnetites, hematites and non-toxic silicas.
5 10 15 20 25 2905881 5 L'acide chlorhydrique lié à des radicaux organiques magnésiens est un autre moyen efficace pour remplacer l'acide chlorhydrique pur, contenu dans la gélatine. Dans un autre exemple de désamiantage on peut utiliser le procédé suivant. La surface du matériau matériel à désamianter est dégraissé et nettoyé au moyen d'une solution hydroalcoolique concentré de soude caustique. La surface du matériel est ensuite rincée abondamment au moyen d'eau jusqu'à obtenir la neutralité des eaux de rinçage. Ce nettoyage préalable peut être accéléré si la géométrie et l'encombrement du matériel le permettent au moyen d'un transducteur ultrasonore de 40 à 60 kilohertz immergé dans l'eau de rinçage. Le traitement de nettoyage terminé, la surface des matériaux est séchée au moyen d'un courant d'air chaud jusqu'à obtenir une surface parfaitement propre. Sur la surface du matériau nettoyé on pratique un désamiantage superficiel au moyen d'un mélange de trichloracétique pur et de gélatine dissout dans l'eau contenant de l'acide chlorhydrique. Ce mélange constitue un gel à 40C qui recouvre la totalité de la surface du matériel.Hydrochloric acid bound to magnesium organic radicals is another effective way to replace the pure hydrochloric acid contained in the gelatin. In another example of asbestos removal the following method can be used. The surface of the material material to be dismantled is defatted and cleaned with a concentrated hydroalcoholic solution of caustic soda. The surface of the material is then rinsed thoroughly with water until the neutrality of the rinsing water. This preliminary cleaning can be accelerated if the geometry and size of the equipment allow it by means of an ultrasonic transducer of 40 to 60 kHz immersed in the rinsing water. Once the cleaning process is complete, the surface of the materials is dried by means of a hot air stream until a perfectly clean surface is obtained. On the surface of the cleaned material superficial asbestos removal is carried out using a mixture of pure trichloroacetic acid and gelatin dissolved in water containing hydrochloric acid. This mixture is a 40C gel that covers the entire surface of the material.
5 10 2905881 6 Ce gel de trichloracétique et de gélatine recouvrant le matériau est soumis à l'effet d'un transducteur à ultrasons émis au moyen d'une sonde émettant une onde ultrasonore de 60 kilohertz. La sonde balaye toute la surface du matériel pendant plus d'une heure. Le matériel ainsi traité et abondamment rincé au moyen d'un jet d'eau désionisé. Le matériel débarrassé de l'amiante en surface peut être stocké ou réutilisé en l'état. En effet l'amiante contenue à l'intérieur du support subsiste mais la surface débarrassée de la substance amiantée ne diffuse pas vers la surface du matériau. Le matériel est inoffensif et ne présente pas de risque de manipulation.This gel of trichloroacetic and gelatin covering the material is subjected to the effect of an ultrasound transducer emitted by means of a probe emitting an ultrasonic wave of 60 kHz. The probe scans the entire surface of the equipment for over an hour. The material thus treated and abundantly rinsed with a jet of deionized water. Materials freed from asbestos at the surface can be stored or reused as is. Indeed asbestos contained inside the support remains but the surface cleared of the asbestos substance does not diffuse to the surface of the material. The material is harmless and does not present any risk of manipulation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0608213A FR2905881B1 (en) | 2006-09-18 | 2006-09-18 | DESAMIANTING METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0608213A FR2905881B1 (en) | 2006-09-18 | 2006-09-18 | DESAMIANTING METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2905881A1 true FR2905881A1 (en) | 2008-03-21 |
| FR2905881B1 FR2905881B1 (en) | 2010-06-18 |
Family
ID=39145065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0608213A Expired - Fee Related FR2905881B1 (en) | 2006-09-18 | 2006-09-18 | DESAMIANTING METHOD |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2905881B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019064069A3 (en) * | 2017-09-29 | 2019-05-16 | Tullia Zucca | Process for the destruction of cement, asbestos-containing material and/or other matrix material by simultanfeously subjecting the material to cavitation and acid-based chemical reaction |
| FR3142685A1 (en) * | 2022-12-06 | 2024-06-07 | Entreprise Moderne de Terrassement et d'Agregats | RECOVERY OF ASBESTOS WASTE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708014A (en) * | 1971-06-23 | 1973-01-02 | Phillips Petroleum Co | Hydrochloric acid/hydrofluoric acid treatment to remove asbestos fibers from a well bore |
| US4908068A (en) * | 1986-10-25 | 1990-03-13 | Ruth Coneglio | Removal of fibrous material |
-
2006
- 2006-09-18 FR FR0608213A patent/FR2905881B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708014A (en) * | 1971-06-23 | 1973-01-02 | Phillips Petroleum Co | Hydrochloric acid/hydrofluoric acid treatment to remove asbestos fibers from a well bore |
| US4908068A (en) * | 1986-10-25 | 1990-03-13 | Ruth Coneglio | Removal of fibrous material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019064069A3 (en) * | 2017-09-29 | 2019-05-16 | Tullia Zucca | Process for the destruction of cement, asbestos-containing material and/or other matrix material by simultanfeously subjecting the material to cavitation and acid-based chemical reaction |
| FR3142685A1 (en) * | 2022-12-06 | 2024-06-07 | Entreprise Moderne de Terrassement et d'Agregats | RECOVERY OF ASBESTOS WASTE |
| WO2024121499A1 (en) * | 2022-12-06 | 2024-06-13 | Entreprise Moderne de Terrassement et d'Agregats | Recycling asbestos waste |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2905881B1 (en) | 2010-06-18 |
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Effective date: 20130531 |