EP3440677A1 - Procédé de traitement amélioré d'un conteneur de déchets - Google Patents
Procédé de traitement amélioré d'un conteneur de déchetsInfo
- Publication number
- EP3440677A1 EP3440677A1 EP17720543.2A EP17720543A EP3440677A1 EP 3440677 A1 EP3440677 A1 EP 3440677A1 EP 17720543 A EP17720543 A EP 17720543A EP 3440677 A1 EP3440677 A1 EP 3440677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binder
- container
- walls
- during
- waste
- 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
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
- G21F9/30—Processing
- G21F9/301—Processing by fixation in stable solid media
- G21F9/307—Processing by fixation in stable solid media in polymeric matrix, e.g. resins, tars
-
- 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
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/16—Processing by fixation in stable solid media
- G21F9/167—Processing by fixation in stable solid media in polymeric matrix, e.g. resins, tars
-
- 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
- G21F9/34—Disposal of solid waste
-
- 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
- G21F9/34—Disposal of solid waste
- G21F9/36—Disposal of solid waste by packaging; by baling
Definitions
- the field of the invention relates to the treatment of waste containers comprising, in addition to their actual content, a binder at least partially filling the initially empty spaces between the walls of the container and the contents of the container.
- the containers in question are for example in the form of metal drums of several hundred liters, the actual content of the latter comprising for example an internal drum in which waste, such as for example radioactive waste, are arranged.
- This waste is for example arranged in turn in compacted storage drums, which minimizes the volume that waste occupies. Pending a reduction in their radiological activity or subsequent treatment, a large quantity of waste, especially radioactive waste, is stored in this form. However, given the volume of production of this waste, the actual volume occupied by the waste thus stored is significant.
- the invention improves the situation.
- the invention relates to a method of treating a waste container, the waste container initially comprising on the one hand a binder comprising bitumen, and on the other hand, in addition to said binder, a content in contact with the binder and waste material, the process comprising: a cooling step during which at least a portion of the waste container is cooled in order to bring at least a portion of the binder to a temperature at which the binder is brittle,
- a primary mechanical separation step implemented when the binder of at least said part is brittle, during which mechanical shocks are applied to break the binder of at least said part to separate at least the binder from said part; said container.
- the cooling step comprises a plurality of cooling sequences during each of which a portion of the binder is cooled to bring the binder of said portion to a temperature at which the binder is brittle, the primary mechanical separation step comprising, for each cooling sequence, a sequence of mechanical shocks to break the binder of said cooled portion during the corresponding cooling sequence.
- the container is cooled to bring the entire binder to a temperature at which the binder is brittle, and, during the mechanical separation step, is separated. the contents of the container by applying mechanical shock to break at least a portion of the binder.
- the method further comprising a secondary mechanical separation step implemented when the binder covering said wall portion of the container and the container is brittle and subsequent to the primary mechanical separation step, during which at least a portion of the binder is separated from contact with container walls and in contact with the contents of said walls and said contents by a new application of mechanical shocks.
- the method further comprises a step of chemical separation subsequent to the secondary mechanical separation step and during which all or part of binder residues are separated from the container of said container by application on the residues of a product adapted to react with the binder.
- At least a portion of the content waste is initially in direct contact with the binder.
- the content comprises at least one storage comprising at least a portion of the waste, the binder initially being in contact with walls of the storage tank.
- the contents of the container comprises an internal drum containing on the one hand at least one storage drum comprising at least a portion of the waste and secondly a second binder comprising bitumen, said second binder being initially in contact with walls of the inner drum and the storage drum.
- the second binder is brought to a second binder temperature at which the second binder is brittle, the method further comprising a second primary mechanical separation step implemented while the second binder is brittle, during which mechanical shocks are applied to break the second binder to release the storage of the internal fut.
- the walls of the internal fut and of the storage shaft are covered at least in part by the second binder at the end of said second primary mechanical separation step, the method further comprising a second stage of secondary mechanical separation implemented when the second binder is brittle, during which the second binder is mechanically shocked, the walls of the inner drum and / or the walls of the storage drum to separate at least a portion of the second binder from the walls of the was internal and was storage.
- the method further comprises a second chemical separation step during which all or part of binder residues are separated from the walls of the inner drum by application to the residues of said product.
- residues of second binder in contact with the inner drum are further separated from walls of the internal ft under the effect of said product or a second product adapted to react with the second binder.
- the storage drum is initially compacted, the method further comprising: the cutting of the storage drum into drum portions for the extraction of waste, and
- the method further comprises:
- a complementary mechanical separation step carried out when the binder is brittle, during which the binder and / or the drawn drum portions are mechanically shocked to separate at least a portion of the wall binder from the stretched drum portions, and
- the method further comprises: a complementary mechanical separation step implemented when the second binder is brittle, during which the second binder and / or the stretched barrel portions are mechanically shocked to separate at least a portion of the second wall binder from the barrel portions; stretched, and
- a step of complementary chemical separation subsequent to the complementary mechanical separation step and during which separations of residues of second binder in contact with walls of stretched portions of said walls are separated by application on said residues of a compound adapted for react with the second binder.
- by-products from the container processing and the content are separated into several predefined groups of materials.
- at least said portion of the binder is brought to a temperature less than or equal to a FRAASS brittleness temperature of the binder at which and below which the binder is brittle.
- the waste container initially comprises a bed of material different from the binder, the method further comprising an initial extraction step during which at least a portion of said bed of material is extracted from the container, for example by suction.
- the binder comprises, in addition to the bitumen, a sludge comprising an industrial effluent or from an industrial effluent.
- FIG. 1 illustrates a waste container to which the treatment method according to the invention is intended to be applied
- FIG. 2 is a block diagram illustrating the steps of the treatment method according to the invention.
- Figure 1 illustrates a waste container 2 to which a treatment method according to the invention is intended to be applied.
- treatment method is meant a method for transforming the container, including at least separating a portion of the elements it contains from the rest thereof.
- the waste in question is of any type.
- they may be metallic, organic, inorganic, etc.
- the container 2 has walls 4 internally defining a volume within which a content 6 of the container 2 is arranged.
- the container 2 comprises a binder 8 at least partially filling the space delimited internally between the walls 4 of the container and the contents 6.
- the container 2 has for example a general shape of hollow cylindrical barrel. It is for example made from metal.
- the container 2 has for example a volume greater than 100 L, and advantageously greater than 200 L. For example, it has a volume of substantially 220 L.
- the container 2 comprises for example removable hoods for closing and releasing the lower and / or upper end of the container.
- the container 2 is for example in the form of a tank. Its walls are for example made from metal, or another material. As described in more detail below, the tank is advantageously intended to be reused once the treatment is completed. As for it, the material of the containers in the form of drums is advantageously intended for further processing.
- the binder 8 is configured to fill the space between the walls of the container 2 and the contents 6, in particular to prevent the relative movement of these elements. In addition, it is configured to confine waste by creating a barrier between the waste and the external environment. In addition, optionally, it is adapted to absorb some of the radiation that may be emitted by the waste, especially when it is radioactive.
- the binder 8 is a bituminous binder. In other words, it includes bitumen.
- the binder 8 is constituted by bitumen, that is to say it essentially comprises bitumen, the rest of its composition (by weight for example) optionally comprising traces of other materials (such as residues from the container material or the contents 6).
- the binder 8 also includes a slurry.
- This sludge is comprised of or comes from an industrial effluent.
- the sludge is obtained by drying, filtering and / or transformation of the effluent.
- This mud corresponds for example to a waste as such.
- the binder 8 advantageously corresponds to a mixture of bitumen and sludge.
- the binder 8 has a frailty temperature FRAASS.
- This temperature can be defined as the temperature at which cracks are formed on a binder film arranged on a blade subjected to successive bends.
- This frailty FRAASS temperature is for example between -5 ° C and -15 ° C.
- the binder is brittle.
- the content 6 includes waste. More specifically, it comprises an inner shaft 10 whose walls internally delimit a volume.
- the internal drum 10 comprises, inside this volume, one or more storage drums 12 comprising waste 14 and a second binder 16.
- it further comprises wedging elements 18 arranged in this volume.
- the inner shaft 10 has a general shape of hollow cylindrical shaft. Like the container 2, it is for example made from metal.
- the inner drum 10 has for example a volume greater than 50 L, and advantageously greater than 100 L. For example, it has a volume substantially equal to 115 L.
- the inner drum comprises one or more covers for closing and releasing its lower end and / or its upper end.
- the storage drums 12 actually contain at least a portion of the waste 14 for the storage of which the container 2 is provided.
- this waste is of any type.
- the waste 14 is radioactive. They then comprise, for example, metals which have been exposed to radiation and which have, for example, radioactive particles or deposits on the surface.
- they are not radioactive. They then include, for example, plastic materials (such as gloves, vinyl, etc.), fabric (such as tarlatan), metal, cardboard and / or paper.
- the storage drums 12 are for example made from metal.
- each barrel 12 is the result of compaction applied to an initial non-compacted drum containing the waste 14.
- This initial barrel has for example a volume of the order of 50 L, and is for example substantially 60 L. compacting has the effect of reducing the volume of the initial drum, for example by a factor of between 4 and 5.
- the inner shaft 10 comprises four storage drums 12 superimposed on each other.
- the second binder 16 is configured to fill at least in part the space defined between the storage drums and the walls of the inner shaft, in particular to prevent their relative movement.
- it is configured to contain the waste by creating a barrier between the waste and the external environment.
- it is adapted to absorb some of the radiation that may be emitted by the waste, especially when these are radioactive.
- the second binder 16 is also a bituminous binder. In other words, it includes bitumen. In some embodiments, the second binder 16 is constituted by bitumen.
- the second binder 16 also includes a slurry.
- This sludge comprises or comes from an industrial effluent.
- the sludge is obtained by drying, filtering and / or transformation of the effluent.
- This mud corresponds for example to a waste as such.
- This sludge is identical to or different from the sludge that the binder 8 can comprise.
- one of the binders 8, 16 comprises a sludge, while the other does not include one.
- the second binder 16 has a frailty temperature FRAASS, as the first binder. This temperature is for example between -5 ° C and -15 ° C.
- the second binder 16 and the first binder 8 have a substantially identical composition.
- the binder surrounding the content 6 and the binder located inside the inner shaft are the same binder.
- these two binders may evolve over time in different ways in view of their different environments, so that their composition at the time of treatment may be different.
- the wedging elements 18 are configured to hold the storage drums 12 at a distance from walls of the inner drum 10. For example, they are configured to keep these drums away from the upper wall of the inner drum.
- the wedging elements 18 comprise for example pebbles interposed between one or more storage drums 12 and the wall or walls at which they maintain these drums.
- the wedging elements 18 comprise pebbles interposed between the upper face of the storage shaft located higher, and the upper wall of the inner shaft.
- the container 2 further comprises a bed of material 20. It is for example located at the bottom of the container 2, the inner drum 10 being placed on the bed of material 20.
- This bed of material is advantageously made from one or more materials other than the binder.
- it includes inorganic materials.
- it includes sand, pebbles, or a mixture of sand and pebbles.
- a cooling step S 1 the container 2 is cooled to bring the binder 8 to a temperature at which it is brittle.
- the binder 8 is thus brought to a temperature below its frailty FRAASS temperature.
- the binder is brought to a temperature below this frailty temperature FRAASS of at least 5 ° C.
- the second binder 16 is also brought to a temperature at which it is brittle. In other words, it is brought to a temperature less than or equal to its frailty temperature FRAASS. Advantageously, it is then brought to a temperature below this frailty FRAASS temperature of at least 5 ° C.
- the container is brought to a temperature less than or equal to the smaller of the respective FRAASS fragility temperatures of the two binders.
- the container 2 is stored in a place where the desired temperature for the binding agent (s) prevails, or a still lower temperature.
- This warehouse is for example of a duration of the order of a few days, and advantageously lasts at least three days.
- the place in question is for example a working chamber arranged in a cold room.
- a primary mechanical separation step S2 mechanical shocks are applied to break the binder 8 so as to release the contents of the container from said container.
- This step is conducted while the binder is at such a temperature that it is brittle. This temperature corresponds to the target temperature, or to a close temperature (the temperature at the beginning of this step being likely to vary slightly, for example under the effect of the manipulations of the container 2).
- the container 2 is cut, this cutout providing container sections.
- mechanical shocks are applied directly to the binder 8.
- a stitching tool is used.
- a needle hammer, a shearer or a chisel is used. Note that mechanical shocks can also be applied to the container 2 and / or the content 6.
- the binder 8 Under the effect of mechanical shocks, and the fact that the binder 8 is at a temperature at which it is brittle, the binder 8 is fractured. The binder joining the contents 2 is then broken into the container so that the contents 2 of the container 6 can be released.
- this step S2 we have the content 6 extracted from the container 2, and the container 2 (possibly in the form of sections).
- this content corresponds to the internal drum (and its contents).
- the inner walls of the container are at least partly covered by binder 8, and the content 6 is also at least partially covered by binder 8.
- the outer walls of the inner shaft are also covered at least by partly by binder.
- This step S2 is advantageously implemented in the warehouse area of the container 2, so that it remains at the temperature obtained at the end of step S1 or at a close temperature (the temperature obtained being lower than FRAASS brittleness temperature of the binder and the second binder).
- a secondary mechanical separation step S3 at least a portion of the binder is separated from the walls of the container 2 by application of mechanical shocks. In addition, at least a portion of the binder is separated from the contents 6 by application of mechanical shocks. This separation of the binder content 6 is carried out immediately before or after the mechanical separation of the binder of the container, or is shifted in time.
- This step is carried out while the binder 8 is at a temperature at which it is brittle. If it is carried out in two stages, the binder is, in the meantime, advantageously maintained at a temperature less than or equal to its frailty temperature FRASS.
- this step consists of a mechanical cleaning of the walls of the container 2 and the outside of the contents 6.
- the mechanical shocks are advantageously applied at least directly to the binder which covers the walls of the container and the contents 6. Alternatively or in parallel, they are applied to the walls of the container and / or the contents 6.
- the binder 8 is separated from these elements until only binder residues remain on these elements.
- a chemical separation step S4 at least a portion of the binder residues from the walls of the container 2 are separated by application of at least the residues of a product adapted to react with the binder.
- the product is suitable for liquefying or dissolving the binder once in contact with it.
- the product used is a methyl ester resulting from the transformation of plant material.
- it is a methyl ester derived from rapeseed processing.
- this ester is also used as a biofuel by some vehicles.
- the use of this product is advantageous because this product is weakly toxic and is low pollutant.
- any product suitable for liquefying or dissolving the binder such as toluene, xylene or the like, is used.
- the container (optionally in the form of sections) is immersed in a bath comprising this product.
- the bath is heated to accelerate the reaction of the residues with the product.
- this chemical separation is carried out in a place that is not refrigerated, and is therefore not carried out in the refrigerated working chamber.
- the binder residues separate from the walls of the container 2.
- the binder residues thus separated are suspended in the bath used and can be recovered later.
- the residue is smeared by means of a cloth impregnated with the product rather than by immersion in a bath.
- the product is sprayed.
- this step comprises a finish advantageously carried out by smearing with the product that reacts with the binder in order to obtain the desired level of cleanliness.
- the inner walls of the container 2 are substantially free of binder.
- a second step of primary mechanical separation S5 mechanical shocks are applied to break the second binder 16 to release the storage drum or barrels 12 of the internal drum 10. This step is implemented while the second is a temperature to which he is brittle.
- mechanical shocks are applied to the second binder.
- mechanical shocks are applied to the inner drum 10 and / or to the storage drum 12.
- the second binder fractures and progressively separates the storage drums 12 from the inner drum. This continues to release the storage barrels 12 of the inner shaft 10, and the storage barrels are extracted from the inner shaft.
- the internal drum 10 At the end of this step, one thus disposes on the one hand of the internal drum 10 and, on the other hand, of the storage drums or drums 12.
- the storage drums 12 have external walls at least partly covered by second binder 16.
- a second secondary mechanical separation step S6 at least a portion of the second binder is removed in contact with the walls of the inner drum by application of mechanical shocks. This step is conducted while the second binder is at a temperature at which it is brittle.
- the walls of the storage drum or drums are also mechanically cleaned by applying mechanical shocks to at least the second binder that is there.
- the inner walls of the inner shaft carry second binder residues, and the outer walls of the binder residues.
- a second chemical separation step S7 the binder residues 8 are separated from the walls of the inner drum by application of the product that reacts with the binder 8.
- the residues of second binder in contact with the (internal) walls of the inner drum 10 also react and are separated from the inner drum.
- the inner barrel (optionally in the form of sections) is immersed in a bath containing the product that reacts with the binder 8, such as the methyl ester described above.
- this product is also adapted to react with the second binder, and then simultaneously separates the second binder residues from the inner walls of the inner drum.
- the bath is heated to accelerate the separation of the binders of the inner drum.
- the bath used here is optionally the same as that used in step S4.
- binder 8 and second binder 16 thus separated are then present in suspension in the bath and can be recovered later.
- the product or products reacting with the binders are sprayed.
- this step comprises a finish advantageously performed by smearing with the product or products that react with the binder (s) in order to obtain the desired level of cleanliness.
- the walls of the inner shaft are substantially free of binder and second binder.
- the storage drum or barrels 12 are cut to extract the waste 14.
- the procedure is, for example, in a known manner.
- a step S9 stretching the portions of fut so as to make accessible the folds that may have formed in the material of the storage drums during compaction.
- the inner walls of the storage drum or barrels that have been in contact with the waste 14 are cleaned to remove any waste residues.
- step S 10 the drawn drum portions obtained at the end of step S9 of the second binder are mechanically cleaned, which covers them at least partly by application of mechanical shocks. This step is implemented while the second binder is at a temperature at which it is brittle.
- this step aims to mechanically remove most of the binder still in contact with the barrel portions once they stretched. As before, it is advantageous to proceed with a stitching tool.
- stretched drum portions comprising at most residues of second binder in contact with their walls, in this case their outer wall, are obtained.
- the residues of the walls of the stretched barrel portions are separated by application to these residues of a compound reacting with the second binder.
- this compound corresponds to the product described above, and is for example a methyl ester.
- this compound proceeds by means of a bath comprising this compound and wherein the barrel portions are arranged.
- the residues of a fabric impregnated with the product are smeared.
- the compound is sprayed.
- this step comprises a finish advantageously carried out by smearing with the product that reacts with the binder in order to obtain the desired level of cleanliness.
- the walls of the storage drums are substantially devoid of a second binder.
- a step S 12 the different by-products of the treatment in groups of materials are grouped together.
- These groups are, for example, predefined. They are for example predefined according to the nature of the different by-products from the previous processing steps.
- these materials are grouped together in a set of groups comprising at least one group comprising the binder, the second binder and the materials derived from these binder, a group comprising metallic materials, a group comprising organic waste other than binders and materials from binders, and a group comprising inorganic wastes.
- Concerning the group associated with the binders this one includes the pieces of binders resulting from the mechanical steps of separation as well as the products resulting from the chemical separations.
- the baths employed are optionally filtered and / or dried for the recovery of residues in suspension. Residues separated otherwise than by bath are also collected.
- the binder pieces from the mechanical separations are crushed and / or crushed. This allows in particular the recovery of the wedging elements 18 which are separated from the internal shaft during the second step of primary mechanical separation.
- the wedging elements 18 are then grouped within the inorganic waste if it is pebbles, or within the adapted group.
- the metallic materials and in particular the material of the container 2, the inner drum and the stretched portions of the storage drum, are united within the group of metallic materials.
- this step S 12 is optionally implemented in a manner that is at least partially automated. Alternatively, it is implemented manually.
- the materials of the groups are arranged in dedicated containers. Optionally, they are subject to further processing.
- the elements of the group of metallic materials are subjected to a melt processing.
- Organic waste is treated by incineration.
- the group of materials including binders is also incinerated.
- Inorganic waste is for example stored for example in their present form.
- the group of inorganic materials advantageously comprises the material of the bed of material 20.
- this material is extracted from the container 2 during a prior step during which this material is extracted, for example by suction. To do this, we proceed for example through the lower cover of the container 2. Alternatively, it is recovered during step S2.
- the content 6 is devoid of internal fut.
- the storage drum or drums are arranged directly in the container 2, all or part of their walls being initially in contact with the binder. This configuration is advantageous insofar as it allows the storage of a larger number of storage drums 12 per container 2, for example five instead of four.
- the method follows the same scheme, but lacks steps S5 to S7, specifically provided for the recovery of the second binder.
- the container 2 does not include a second binder.
- the process comprises steps S1 to S4, during which the container is cooled to make the binder brittle, the contents of the container are separated by breaking the binder, and the walls of the container and the contents are mechanically cleaned. binder on contact with them, and the container 2 is chemically cleaned in such a manner as to advantageously remove all remaining binder residues.
- the storage drum or drums are cut according to step S8, the drum portions are stretched according to step S9), and they are cleaned mechanically and chemically so as to remove the binder 8 according to the principle of Steps S10 and Sl1, except that it is intended here to remove the binder 8 (and not the second binder 16 as in the embodiment described above).
- the different materials are then grouped into material groups as described above in step S12.
- the storage drums are not compacted.
- the process is substantially identical to that described above, with the difference that the barrel portions resulting from the cutting of the storage drum or drums are not stretched.
- the contents 6 of the container is devoid of storage barrel and internal shaft. The waste 14 of the contents are then initially in direct contact with the binder.
- the process comprises steps S1 to S4 and step S12.
- the container is cooled and the waste is separated from the container by breaking the cooled binder as above, and the waste is mechanically cleaned.
- container to separate most of the binder then chemically cleans the container and waste to remove binder residues.
- the different by-products of this treatment are then grouped into the desired groups.
- the container 2 is in the form of a tank.
- the content 6 optionally comprises storage drums, themselves optionally arranged in an internal drum.
- the treatment process is identical to the method described above or to one of the above variants depending on the presence or absence of one (or more) internal drum and one or more storage drums, at the difference that the walls of the container are not cut and that their material is not grouped within the groups of materials in step S 12.
- a cold fluid advantageously selected from liquid nitrogen, liquid air or liquid carbon dioxide.
- a cold fluid advantageously selected from liquid nitrogen, liquid air or liquid carbon dioxide.
- These fluids have the advantage of not generating liquid effluent or additional waste.
- a zone of the tank is cooled in which the binder is then fractured, and this is followed by a succession of cooling sequences each followed by a sequence of mechanical shocks during each of which the Newly rendered brittle binder is broken so as to separate this broken binder from the container. This is done until you can separate the actual contents of the tank from the tank itself.
- the bulk of the binder is extracted from the container itself.
- the same is done for the content 2, that is to say by local injection of cold fluid when necessary, in particular to lower or maintain the temperature of the binder or binders at a temperature below their FRAASS fragility temperature for the application of mechanical shocks, or the content 6 is moved in the refrigerated working chamber described above to reduce to the described method.
- the secondary mechanical separation step for separating the binder from the walls of the tank is advantageously implemented via local injection of cold fluid.
- a container 2 such as that of FIG. 1 is treated by cooling parts of the binder locally by cold-fluid injection and by breaking these binder portions during the mechanical separation step. primary and cooling stage, as for the above variant.
- a part of the content waste (other than the possible waste contained in the binder itself) is initially in direct contact with the binder, part of the waste is arranged in at least one storage drum initially at the contact of the binder, and / or a part waste is arranged in at least one storage drum located in an internal shaft comprising a second binder.
- the method then comprises the steps of the different embodiments described above.
- the invention has many advantages.
- the treatment of the container is simplified.
- it eliminates the heating of the container, which involves risks and is not suitable for all types of waste.
- the amount of chemicals required for the treatment of the container is reduced, the use of a chemical reaction route not involved centrally in the context of the principle according to the invention.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1652945A FR3049476B1 (fr) | 2016-04-04 | 2016-04-04 | Procede de traitement ameliore d'un conteneur de dechets |
| PCT/FR2017/050791 WO2017174922A1 (fr) | 2016-04-04 | 2017-04-04 | Procédé de traitement amélioré d'un conteneur de déchets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3440677A1 true EP3440677A1 (fr) | 2019-02-13 |
| EP3440677B1 EP3440677B1 (fr) | 2020-04-29 |
Family
ID=57113418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17720543.2A Active EP3440677B1 (fr) | 2016-04-04 | 2017-04-04 | Procédé de traitement amélioré d'un conteneur de déchets |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3440677B1 (fr) |
| FR (1) | FR3049476B1 (fr) |
| LT (1) | LT3440677T (fr) |
| WO (1) | WO2017174922A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2361732C2 (de) * | 1973-12-12 | 1982-09-09 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Schneckenwellen-Extruder zum Fixieren radioaktiver und/oder toxischer Abfallstoffe |
| DE3047458C2 (de) * | 1980-12-17 | 1984-12-13 | Nukem Gmbh, 6450 Hanau | Behälteranordnung zum vorübergehenden Lagern fester radioaktiver Abfallstoffe |
| CA1223834A (fr) * | 1986-04-15 | 1987-07-07 | William K. Schmidt | Recuperation du bitume et separation des solides, contenu dans les eaux usees du procede d'extraction assistee par eau haute temperature |
| ITTO20080047A1 (it) * | 2008-01-18 | 2009-07-19 | Euroline Srl | Macchina e metodo per sminuzzare porzioni di materiale bituminoso in granuli riciclabili |
-
2016
- 2016-04-04 FR FR1652945A patent/FR3049476B1/fr not_active Expired - Fee Related
-
2017
- 2017-04-04 WO PCT/FR2017/050791 patent/WO2017174922A1/fr not_active Ceased
- 2017-04-04 EP EP17720543.2A patent/EP3440677B1/fr active Active
- 2017-04-04 LT LTEP17720543.2T patent/LT3440677T/lt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LT3440677T (lt) | 2020-10-12 |
| WO2017174922A1 (fr) | 2017-10-12 |
| FR3049476A1 (fr) | 2017-10-06 |
| FR3049476B1 (fr) | 2018-04-13 |
| EP3440677B1 (fr) | 2020-04-29 |
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