EP3040294B1 - System for storing waste and percolating water - Google Patents

System for storing waste and percolating water Download PDF

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Publication number
EP3040294B1
EP3040294B1 EP15201047.6A EP15201047A EP3040294B1 EP 3040294 B1 EP3040294 B1 EP 3040294B1 EP 15201047 A EP15201047 A EP 15201047A EP 3040294 B1 EP3040294 B1 EP 3040294B1
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EP
European Patent Office
Prior art keywords
container
storage system
tank
lower container
orifice
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Not-in-force
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EP15201047.6A
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German (de)
French (fr)
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EP3040294A1 (en
Inventor
Jean Troton
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Plastic Omnium SE
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Plastic Omnium SE
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Publication of EP3040294A1 publication Critical patent/EP3040294A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F1/1426—Housings, cabinets or enclosures for refuse receptacles
    • B65F1/1447—Housings, cabinets or enclosures for refuse receptacles located underground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F2210/00—Equipment of refuse receptacles
    • B65F2210/132—Draining means

Definitions

  • the invention relates to the technical field of tank waste storage systems, including buried tank, according to the preamble of claim 1.
  • a waste storage system is known from EP-A-2,284,105 .
  • Such a storage system generally comprises a concrete tank at least partially buried in which is formed a waste container adapted to receive the waste. When it is desired to empty the storage system, it is sufficient to empty the container, for example by removing it from the tank, pouring the contents into a dump truck and repositioning it in the tank.
  • the waste in question is, for example, household waste, kitchen waste, green waste, cardboard or paper packaging, or glass, to name just a few examples. Some of these wastes are wet, and so a liquid is likely to ooze this waste. This liquid is commonly called leachate.
  • the bottom of the container is not perfectly sealed, a portion of the leachate generally flows out of the container to the bottom of the tank. Since it is generally not planned to empty the tank, the leachate accumulates at the bottom of the tank and generates olfactory nuisances for users of the storage system. In addition, hygiene problems can result from the accumulation of leachate at the bottom of the tank.
  • one solution may be to purge and regularly clean the bottom of the tank. But this requires the intervention of significant human and material resources.
  • An object of the invention is to prevent the leachate leaking waste from flowing to the bottom of the tank and to recover it.
  • the leachate leaking waste located in the upper and through container the bottom of the upper container falls on the lid of the lower container.
  • the shape of this lid allows the leachate to flow by gravity to the orifice and thus to the interior of the lower container. This ensures that the leachate escaping from the upper container flows into the lower container and not into the tank, the bottom remains immaculate.
  • the leachate is stored in the lower container, it is also possible to recover a later valuation.
  • edges of the opening of the lid of the lower container are extended by retention walls extending substantially vertically downwards.
  • the smelly vapors leachate stored in the lower container are partially blocked by the retention walls, which limits the emission of unpleasant odors to the outside of the lower container.
  • the upper and lower containers are removable.
  • the upper container has a bottom having at least one orifice and having a shape adapted to direct liquids to the orifice by gravity.
  • the orifice of the upper container is located opposite the orifice of the lower container.
  • the leachate flows directly from the upper container to the lower container. In this way, it is less likely to dry on the lid of the lower container.
  • the lid of the lower container has the same general section as a funnel.
  • the lid of the lower container is formed by two walls inclined towards the opening of the lower container.
  • the lid of the lower container thus has a simple shape. This lid is easy to manufacture.
  • the storage system further comprises means for connecting means for pumping the liquid present in the lower container.
  • the lower container is formed by a waterproof membrane formed in a grid support.
  • the grid support keeps the membrane shaped to receive the leachate flowing from the upper container.
  • the membrane When the membrane is either worn or filled, simply remove it and replace it with a new membrane.
  • the lower container is easily exchangeable.
  • the lower container has rigid and sealed walls.
  • the lower container requires a reduced level of maintenance, since it is sufficient to empty it when the leachate it contains has reached a predetermined level, and to clean it if desired.
  • the upper container is placed on the lower container.
  • the tank has at least one retaining wall of the upper container, this retaining wall projecting on an inner surface of a side wall of the vessel.
  • the tank has a retaining shoulder of the upper container.
  • FIG 1 a waste storage system 2 according to one embodiment of the invention.
  • This storage system 2 comprises a storage tank 4, an upper container 6 formed in the tank 4 and intended to receive waste, and a lower liquid-tight container 8 formed in the tank 4 and positioned under the upper container 6.
  • tank 4 delimits an internal volume of generally rectangular parallelepiped whose largest sides are substantially parallel to the vertical direction.
  • the tank 4 is intended to be at least partially buried in the ground and is for example made of concrete.
  • the upper 6 and lower 8 containers are removable to facilitate the emptying of the containers 6, 8 and are for example made of a plastic material.
  • the storage system 2 is also provided with a terminal 10 having an access duct inside the tank 11.
  • terminal 10 When a user wishes to deposit a waste in the storage system 2, it does so through of terminal 10.
  • the latter improves the ergonomics of the storage system 2 because thanks to it, the user does not need to bend to deposit a waste in the storage system 2.
  • the lower container 8 comprises a lid 12 having at least one orifice 14, said lower orifice, and having a shape adapted to direct liquids to the lower orifice 14 by gravity. It is thus able to guide drops of liquid, in particular leachate L , flowing from the upper container 6 through the bottom thereof to the interior of the lower container 8.
  • the cover 12 of the lower container 8 in a plane of section of the figure 2 which is vertical, has the same general section as a funnel.
  • the lid 12 of the lower container 8 is formed by two flat walls 12a, 12b inclined towards the orifice 14 of the lower container 8.
  • the lid 12 of the lower container 8 has a completely different shape.
  • the upper container 6 is placed on the lower container 8.
  • the upper container 6 has a bottom 15 having at least one orifice 16, said upper orifice, and having a shape adapted to direct the liquid to the upper orifice 16 by gravity. In this way, the leachate L leaking waste located in the upper container 6 is directed to the upper orifice 16 to facilitate its evacuation to the lower container 8.
  • the upper orifice 16 is located in view of the lower orifice 14 to allow the direct flow of leachate L from the upper container 6 to the lower container 8.
  • edges of the lower orifice 14 are extended by retention walls 18 extending substantially vertically downwards, that is to say towards the inside. of the lower container 8.
  • the leachate L stored in the lower container 8 emits smelly vapors rising in the lower container 8. These vapors are partially trapped in areas 20 delimited by the retention walls 18 and by the cover 12. These zones 20 are delimited by discontinuous lines shown in the figures.
  • the procedure is as follows.
  • the upper container 6 is removed from the tank 4 and emptied of its waste, for example in a dump truck.
  • the lower container 8 is then removed from the tank 4 and empty of the leachate L that it contains, for example also in a dump truck.
  • FIG 3 a waste storage system 2 according to an alternative embodiment of the invention.
  • This variant differs from the embodiment of the Figures 1 and 2 in that the lower container 8 is formed by a waterproof membrane 22 formed in a grid support 24.
  • the leachate L is held by the waterproof membrane 22 until it is necessary to empty the container lower 8.
  • the tank 4 further has at least one retaining wall 25 of the upper container 6, the retaining wall 25 being substantially horizontal and projecting on a surface
  • This retaining wall 25 forms a raven extending all around the side wall.
  • the retaining wall 25 is fixed detachably, for example by screwing, on the side wall and is for example made of a metal. It can be provided that the retaining wall 25 does not extend all around the sidewall but is divided into four retaining walls each extending on one of the four sides of the side wall of the vessel 4 , each of the four retaining walls extending only over part of the width of the face of the side wall of the tank 4 to which it is attached, for example half that length.
  • the manufacturing cost of the retaining wall 25 is reduced. It will also be possible to replace this retaining wall with four support members, for example rectangular metal posts, extending substantially parallel to the direction vertical and fixed to the bottom of the tank 4 in the four corners of the tank 4. These support members are intended to support the upper container 6.
  • the tank 4 also has a retaining shoulder 26 of the upper container 6.
  • the retaining wall 25 and the retaining shoulder 26 have shapes capable of cooperating with the shape of the upper container 6 to hold it in place in the tank 4 .
  • the storage system 2 of the figure 3 has no terminal. It is instead provided with an access cover to the tank 28, for example rotatably mounted around a vertical or horizontal axis, or movably mounted in horizontal translation. This cover 28 delimits an upper end of the storage system 2, and is placed for example at ground level or at non-zero height of the floor to improve the ergonomics of the storage system 2.
  • FIG 4 a storage system 2 according to another embodiment of the invention.
  • the lower container 8 comprises rigid and sealed walls 29. It is for example made of a stainless metal, optionally reinforced with structural reinforcements. These reinforcements make it possible to pressurize the leachate L present in the lower container 8, for example for the purpose of cleaning the latter, without deteriorating the walls 29 of the lower container 8. This ensures that the lower container 8 has a sufficiently long mechanical life so that it is not necessary to change it.
  • connection means 30 to means for pumping the liquid present in the lower container 8.
  • connection means include in particular a duct 32 which extends out of the tank 4 and opens to the outside at ground level, in the open air. It eventually opens under a locked protection plate 34 which only authorized operators have the means to unlock it. It can be provided that the duct 32 extends largely inside the tank 4, or even completely in the tank 4, or that the storage system 2 is provided with a pumping system such as that described. in the document FR-2 960 226 .
  • an operator opens the protection plate 34 and connects the connection means 30 to a pump where the conduit 32 opens out. It can then pump the leachate L present in the lower container 8.
  • tank and the upper and lower containers may be made of materials different from those set forth above. They may also have other forms than those described in the foregoing and in the drawings.
  • the retaining wall may be integral with the side wall of the vessel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Refuse Receptacles (AREA)
  • Processing Of Solid Wastes (AREA)

Description

L'invention concerne le domaine technique des systèmes de stockage de déchets à cuve, notamment à cuve enterrée, selon le préambule de la revendication 1. Un tel système de stockage de déchets est connu du EP-A-2 284 105 . Un tel système de stockage comprend en général une cuve en béton au moins partiellement enterrée dans laquelle est ménagé un conteneur à déchets apte à réceptionner les déchets. Lorsqu'on souhaite vider le système de stockage, il suffit de vider le conteneur, par exemple en l'ôtant de la cuve, en versant le contenu dans un camion-benne et en le repositionnant dans la cuve.The invention relates to the technical field of tank waste storage systems, including buried tank, according to the preamble of claim 1. Such a waste storage system is known from EP-A-2,284,105 . Such a storage system generally comprises a concrete tank at least partially buried in which is formed a waste container adapted to receive the waste. When it is desired to empty the storage system, it is sufficient to empty the container, for example by removing it from the tank, pouring the contents into a dump truck and repositioning it in the tank.

Les déchets en question sont par exemple des ordures ménagères, des déchets de cuisine, des déchets verts, des emballages en carton ou en papier, ou du verre, pour ne citer que quelques exemples. Certains de ces déchets sont humides, et donc un liquide est susceptible de suinter de ces déchets. Ce liquide est couramment appelé lixiviat. Le fond du conteneur n'étant pas parfaitement étanche, une partie du lixiviat s'écoule généralement hors du conteneur vers le fond de la cuve. Etant donné qu'il n'est généralement pas prévu de vidanger la cuve, le lixiviat s'accumule au fond de la cuve et génère des nuisances olfactives pour les usagers du système de stockage. De plus, des problèmes d'hygiène peuvent résulter de l'accumulation du lixiviat au fond de la cuve.The waste in question is, for example, household waste, kitchen waste, green waste, cardboard or paper packaging, or glass, to name just a few examples. Some of these wastes are wet, and so a liquid is likely to ooze this waste. This liquid is commonly called leachate. The bottom of the container is not perfectly sealed, a portion of the leachate generally flows out of the container to the bottom of the tank. Since it is generally not planned to empty the tank, the leachate accumulates at the bottom of the tank and generates olfactory nuisances for users of the storage system. In addition, hygiene problems can result from the accumulation of leachate at the bottom of the tank.

Pour pallier ce problème, une solution peut être de purger et de nettoyer régulièrement le fond de la cuve. Mais cela nécessite l'intervention de moyens humains et matériels importants.To overcome this problem, one solution may be to purge and regularly clean the bottom of the tank. But this requires the intervention of significant human and material resources.

Par ailleurs, il peut être intéressant de pouvoir récupérer le lixiviat, car il est généralement riche en minéraux et forme ainsi un très bon complément pour les solutions de méthanisation agricole.Moreover, it can be interesting to be able to recover the leachate, because it is generally rich in minerals and thus forms a very good complement for the solutions of agricultural methanization.

Un but de l'invention est d'empêcher le lixiviat suintant des déchets de s'écouler vers le fond de la cuve et de pouvoir le récupérer.An object of the invention is to prevent the leachate leaking waste from flowing to the bottom of the tank and to recover it.

A cet effet, on prévoit selon l'invention un système de stockage de déchets qui comprend :

  • une cuve de stockage,
  • un conteneur supérieur ménagé dans la cuve et destiné à accueillir des déchets, et
  • un conteneur inférieur étanche aux liquides ménagé dans la cuve et positionné sous le conteneur supérieur,
le conteneur inférieur comportant un couvercle présentant au moins un orifice et présentant une forme apte à diriger des liquides vers l'orifice par gravité.For this purpose, it is provided according to the invention a waste storage system which comprises:
  • a storage tank,
  • an upper container formed in the tank and intended to receive waste, and
  • a lower liquid-tight container provided in the tank and positioned under the upper container,
the lower container having a lid having at least one orifice and having a shape adapted to direct liquids to the orifice by gravity.

Ainsi, le lixiviat suintant des déchets situés dans le conteneur supérieur et traversant le fond du conteneur supérieur tombe sur le couvercle du conteneur inférieur. La forme de ce couvercle permet au lixiviat de s'écouler par gravité vers l'orifice et donc vers l'intérieur du conteneur inférieur. On s'assure ainsi que le lixiviat s'échappant du conteneur supérieur s'écoule dans le conteneur inférieur et pas dans la cuve, dont le fond reste donc immaculé. Le lixiviat étant stocké dans le conteneur inférieur, il est par ailleurs possible de le récupérer une valorisation ultérieure.Thus, the leachate leaking waste located in the upper and through container the bottom of the upper container falls on the lid of the lower container. The shape of this lid allows the leachate to flow by gravity to the orifice and thus to the interior of the lower container. This ensures that the leachate escaping from the upper container flows into the lower container and not into the tank, the bottom remains immaculate. The leachate is stored in the lower container, it is also possible to recover a later valuation.

Avantageusement, des bords de l'orifice du couvercle du conteneur inférieur sont prolongés par des parois de rétention s'étendant sensiblement verticalement vers le bas.Advantageously, edges of the opening of the lid of the lower container are extended by retention walls extending substantially vertically downwards.

Ainsi, les vapeurs malodorantes du lixiviat stocké dans le conteneur inférieur sont partiellement bloquées par les parois de rétention, ce qui permet de limiter l'émanation de mauvaises odeurs vers l'extérieur du conteneur inférieur.Thus, the smelly vapors leachate stored in the lower container are partially blocked by the retention walls, which limits the emission of unpleasant odors to the outside of the lower container.

Avantageusement, les conteneurs supérieur et inférieur sont amovibles.Advantageously, the upper and lower containers are removable.

Il est ainsi aisé de purger les conteneurs, puisqu'il suffit de les ôter de la cuve, de les vider et de les repositionner dans la cuve.It is thus easy to purge the containers, since it is sufficient to remove them from the tank, to empty them and reposition them in the tank.

Avantageusement, le conteneur supérieur comporte un fond présentant au moins un orifice et présentant une forme apte à diriger les liquides vers l'orifice par gravité.Advantageously, the upper container has a bottom having at least one orifice and having a shape adapted to direct liquids to the orifice by gravity.

On dirige ainsi le lixiviat présent dans le conteneur supérieur vers le conteneur inférieur. De la sorte, le lixiviat s'accumule moins dans le conteneur supérieur, ce qui permet de réduire l'émanation de mauvaises odeurs.This directs the leachate present in the upper container to the lower container. In this way, the leachate accumulates less in the upper container, which reduces the emanation of bad odors.

De préférence, l'orifice du conteneur supérieur est situé en regard de l'orifice du conteneur inférieur.Preferably, the orifice of the upper container is located opposite the orifice of the lower container.

Le lixiviat s'écoule ainsi directement du conteneur supérieur vers le conteneur inférieur. De la sorte, il est moins susceptible de sécher sur le couvercle du conteneur inférieur.The leachate flows directly from the upper container to the lower container. In this way, it is less likely to dry on the lid of the lower container.

Avantageusement, dans un plan de section vertical, le couvercle du conteneur inférieur présente la même section générale qu'un entonnoir.Advantageously, in a vertical section plane, the lid of the lower container has the same general section as a funnel.

Avantageusement, le couvercle du conteneur inférieur est formé par deux parois inclinées vers l'orifice du conteneur inférieur.Advantageously, the lid of the lower container is formed by two walls inclined towards the opening of the lower container.

Le couvercle du conteneur inférieur présente ainsi une forme simple. Ce couvercle est donc facile à fabriquer.The lid of the lower container thus has a simple shape. This lid is easy to manufacture.

Avantageusement, le système de stockage comprend en outre des moyens de raccordement à des moyens de pompage du liquide présent dans le conteneur inférieur.Advantageously, the storage system further comprises means for connecting means for pumping the liquid present in the lower container.

Ainsi, lorsqu'il est nécessaire de vider le conteneur inférieur, il suffit de connecter une pompe aux moyens de raccordement et de pomper le lixiviat hors du conteneur inférieur.Thus, when it is necessary to empty the lower container, simply connect a pump to the connection means and pump the leachate out of the lower container.

Selon un mode de réalisation de l'invention, le conteneur inférieur est formé par une membrane étanche ménagée dans un support grillagé.According to one embodiment of the invention, the lower container is formed by a waterproof membrane formed in a grid support.

Ainsi, le support grillagé maintient la membrane en forme pour réceptionner le lixiviat s'écoulant du conteneur supérieur. Lorsque la membrane est soit usée, soit remplie, il suffit de l'ôter et de la remplacer par une membrane neuve. Selon ce mode de réalisation, le conteneur inférieur est facilement échangeable.Thus, the grid support keeps the membrane shaped to receive the leachate flowing from the upper container. When the membrane is either worn or filled, simply remove it and replace it with a new membrane. According to this embodiment, the lower container is easily exchangeable.

Selon une variante de réalisation de l'invention, le conteneur inférieur comporte des parois rigides et étanches.According to an alternative embodiment of the invention, the lower container has rigid and sealed walls.

On s'assure ainsi que le conteneur inférieur présente une durée de vie suffisante pour qu'il ne soit pas nécessaire de le remplacer. Selon ce mode de réalisation, le conteneur inférieur nécessite un niveau d'entretien réduit, puisqu'il suffit de le vider lorsque le lixiviat qu'il contient a atteint un niveau prédéterminé, et de le nettoyer si cela est souhaité.This ensures that the lower container has a sufficient life so that it is not necessary to replace it. According to this embodiment, the lower container requires a reduced level of maintenance, since it is sufficient to empty it when the leachate it contains has reached a predetermined level, and to clean it if desired.

De préférence, le conteneur supérieur est posé sur le conteneur inférieur.Preferably, the upper container is placed on the lower container.

Ainsi, on peut réduire le dimensionnement des moyens pour soutenir le conteneur supérieur ménagés dans la cuve, voire même se dispenser de tels moyens de soutènement.Thus, it is possible to reduce the size of the means for supporting the upper container formed in the tank, or even to dispense with such means of support.

Avantageusement, la cuve présente au moins une paroi de soutènement du conteneur supérieur, cette paroi de soutènement faisant saillie sur une surface interne d'une paroi latérale de la cuve.Advantageously, the tank has at least one retaining wall of the upper container, this retaining wall projecting on an inner surface of a side wall of the vessel.

Avantageusement, la cuve présente un épaulement de soutènement du conteneur supérieur.Advantageously, the tank has a retaining shoulder of the upper container.

Ces moyens, simples, permettent de soutenir le conteneur supérieur dans la cuve.These simple means make it possible to support the upper container in the tank.

L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en référence aux dessins dans lesquels :

  • la figure 1 est une vue en perspective avec éclatement partiel d'un système de stockage de déchets selon un mode de réalisation de l'invention,
  • la figure 2 est une vue en section selon II-II du système de stockage de la figure 1, et
  • les figures 3 et 4 sont des vues similaires à celle de la figure 2 selon des variantes de réalisation de l'invention.
The invention will be better understood on reading the following description given solely by way of example and with reference to the drawings in which:
  • the figure 1 is a partial exploded perspective view of a waste storage system according to an embodiment of the invention,
  • the figure 2 is a sectional view along II-II of the storage system of the figure 1 , and
  • the Figures 3 and 4 are views similar to that of the figure 2 according to alternative embodiments of the invention.

On a illustré en figure 1 un système de stockage de déchets 2 selon un mode de réalisation de l'invention. Ce système de stockage 2 comprend une cuve de stockage 4, un conteneur supérieur 6 ménagé dans la cuve 4 et destiné à accueillir des déchets, et un conteneur inférieur 8 étanche aux liquides ménagé dans la cuve 4 et positionné sous le conteneur supérieur 6. La cuve 4 délimite un volume interne de forme générale de parallélépipède rectangle dont les plus grands côtés sont sensiblement parallèles à la direction verticale. La cuve 4 est destinée à être au moins partiellement enterrée dans le sol et est par exemple réalisée dans du béton. Les conteneurs supérieur 6 et inférieur 8 sont amovibles pour faciliter les opérations de vidage des conteneurs 6, 8 et sont par exemple réalisés dans une matière plastique.We have illustrated in figure 1 a waste storage system 2 according to one embodiment of the invention. This storage system 2 comprises a storage tank 4, an upper container 6 formed in the tank 4 and intended to receive waste, and a lower liquid-tight container 8 formed in the tank 4 and positioned under the upper container 6. tank 4 delimits an internal volume of generally rectangular parallelepiped whose largest sides are substantially parallel to the vertical direction. The tank 4 is intended to be at least partially buried in the ground and is for example made of concrete. The upper 6 and lower 8 containers are removable to facilitate the emptying of the containers 6, 8 and are for example made of a plastic material.

Le système de stockage 2 est également muni d'une borne 10 comportant un conduit d'accès à l'intérieur de la cuve 11. Lorsqu'un utilisateur souhaite déposer un déchet dans le système de stockage 2, il le fait par l'intermédiaire de la borne 10. Cette dernière permet d'améliorer l'ergonomie du système de stockage 2 car grâce à elle, l'utilisateur n'a pas besoin de se baisser pour déposer un déchet dans le système de stockage 2.The storage system 2 is also provided with a terminal 10 having an access duct inside the tank 11. When a user wishes to deposit a waste in the storage system 2, it does so through of terminal 10. The latter improves the ergonomics of the storage system 2 because thanks to it, the user does not need to bend to deposit a waste in the storage system 2.

On va maintenant décrire plus en détails les conteneurs supérieur 6 et inférieur 8, ainsi que leur agencement dans la cuve 4.The upper and lower containers 8 and their arrangement in the vessel 4 will now be described in more detail.

En référence à la figure 2, le conteneur inférieur 8 comporte un couvercle 12 présentant au moins un orifice 14, dit orifice inférieur, et présentant une forme apte à diriger des liquides vers l'orifice inférieur 14 par gravité. Il est ainsi apte à guider les gouttes de liquide, notamment de lixiviat L, s'écoulant depuis le conteneur supérieur 6 à travers le fond de celui-ci vers l'intérieur du conteneur inférieur 8. Dans le présent exemple, dans un plan de section de la figure 2, qui est vertical, le couvercle 12 du conteneur inférieur 8 présente la même section générale qu'un entonnoir. En outre, comme cela est visible sur la figure 1, le couvercle 12 du conteneur inférieur 8 est formé par deux parois planes 12a, 12b inclinées vers l'orifice 14 du conteneur inférieur 8. On pourra toutefois prévoir que le couvercle 12 du conteneur inférieur 8 présente une toute autre forme.With reference to the figure 2 , the lower container 8 comprises a lid 12 having at least one orifice 14, said lower orifice, and having a shape adapted to direct liquids to the lower orifice 14 by gravity. It is thus able to guide drops of liquid, in particular leachate L , flowing from the upper container 6 through the bottom thereof to the interior of the lower container 8. In the present example, in a plane of section of the figure 2 which is vertical, the cover 12 of the lower container 8 has the same general section as a funnel. Moreover, as is visible on the figure 1 , the lid 12 of the lower container 8 is formed by two flat walls 12a, 12b inclined towards the orifice 14 of the lower container 8. However, it can be provided that the lid 12 of the lower container 8 has a completely different shape.

Le conteneur supérieur 6 est posé sur le conteneur inférieur 8. Le conteneur supérieur 6 comporte un fond 15 présentant au moins un orifice 16, dit orifice supérieur, et présentant une forme apte à diriger les liquides vers l'orifice supérieur 16 par gravité. De la sorte, le lixiviat L suintant des déchets situés dans le conteneur supérieur 6 est dirigé vers l'orifice supérieur 16 afin de faciliter son évacuation vers le conteneur inférieur 8. Afin d'améliorer cette évacuation, l'orifice supérieur 16 est situé en regard de l'orifice inférieur 14 pour permettre l'écoulement direct du lixiviat L du conteneur supérieur 6 vers le conteneur inférieur 8.The upper container 6 is placed on the lower container 8. The upper container 6 has a bottom 15 having at least one orifice 16, said upper orifice, and having a shape adapted to direct the liquid to the upper orifice 16 by gravity. In this way, the leachate L leaking waste located in the upper container 6 is directed to the upper orifice 16 to facilitate its evacuation to the lower container 8. In order to improve this discharge, the upper orifice 16 is located in view of the lower orifice 14 to allow the direct flow of leachate L from the upper container 6 to the lower container 8.

Afin de réduire l'émanation de mauvaises odeurs du conteneur inférieur 8, des bords de l'orifice inférieur 14 sont prolongés par des parois de rétention 18 s'étendant sensiblement verticalement vers le bas, c'est-à-dire vers l'intérieur du conteneur inférieur 8. Le lixiviat L stocké dans le conteneur inférieur 8 émet des vapeurs malodorantes s'élevant dans le conteneur inférieur 8. Ces vapeurs sont partiellement piégées dans des zones 20 délimitées par les parois de rétention 18 et par le couvercle 12. Ces zones 20 sont délimitées par des traits discontinus représentés sur les figures.In order to reduce the emission of bad odors from the lower container 8, edges of the lower orifice 14 are extended by retention walls 18 extending substantially vertically downwards, that is to say towards the inside. of the lower container 8. The leachate L stored in the lower container 8 emits smelly vapors rising in the lower container 8. These vapors are partially trapped in areas 20 delimited by the retention walls 18 and by the cover 12. These zones 20 are delimited by discontinuous lines shown in the figures.

Lorsqu'on souhaite vider les conteneurs supérieur 6 et inférieur 8, on opère de la manière suivante. On retire le conteneur supérieur 6 de la cuve 4 et on le vide de ses déchets, par exemple dans un camion-benne. On retire ensuite le conteneur inférieur 8 de la cuve 4 et on le vide du lixiviat L qu'il contient, par exemple également dans un camion-benne. Facultativement, on peut profiter de ces opérations de vidage pour nettoyer les conteneurs supérieur 6 et inférieur 8. Il n'est pas nécessaire de nettoyer la cuve 4 car le conteneur inférieur 8 empêche le lixiviat L de s'écouler dans le fond de la cuve 4. On peut ensuite replacer le conteneur inférieur 8 puis le conteneur supérieur 6 dans la cuve 4.When it is desired to empty the upper 6 and lower 8 containers, the procedure is as follows. The upper container 6 is removed from the tank 4 and emptied of its waste, for example in a dump truck. The lower container 8 is then removed from the tank 4 and empty of the leachate L that it contains, for example also in a dump truck. Optionally, it is possible to take advantage of these emptying operations to clean the upper 6 and lower 8 containers. It is not necessary to clean the tank 4 because the lower container 8 prevents the leachate L from flowing into the bottom of the tank. 4. It is then possible to replace the lower container 8 and the upper container 6 in the tank 4.

On a représenté en figure 3 un système de stockage de déchets 2 selon une variante de réalisation de l'invention. Cette variante diffère du mode de réalisation des figures 1 et 2 en ce que le conteneur inférieur 8 est formé par une membrane 22 étanche ménagée dans un support grillagé 24. De la sorte, le lixiviat L est maintenu par la membrane 22 étanche jusqu'à ce que ce qu'il soit nécessaire de vider le conteneur inférieur 8. Lorsque cela est nécessaire, il est possible de fermer la membrane et de la retirer de la cuve 4, sans retirer le support grillagé 24. On peut alors remplacer la membrane fermée et remplie par une membrane neuve que l'on place dans le support grillagé 24. Cela permet d'accélérer les opérations de vidage du conteneur inférieur 6 et ne pas avoir à le nettoyer.We have shown in figure 3 a waste storage system 2 according to an alternative embodiment of the invention. This variant differs from the embodiment of the Figures 1 and 2 in that the lower container 8 is formed by a waterproof membrane 22 formed in a grid support 24. In this way, the leachate L is held by the waterproof membrane 22 until it is necessary to empty the container lower 8. When necessary, it is possible to close the membrane and remove the tank 4, without removing the grid support 24. We can then replace the membrane closed and filled with a new membrane that is placed in the grid support 24. This speeds up the emptying operations of the lower container 6 and does not have to clean it.

Etant donné que le support grillagé 24 ne permet pas de soutenir efficacement le conteneur supérieur 6, la cuve 4 présente en outre au moins une paroi de soutènement 25 du conteneur supérieur 6, cette paroi de soutènement 25 étant sensiblement horizontale et faisant saillie sur une surface interne d'une paroi latérale de la cuve 4. Cette paroi de soutènement 25 forme un corbeau s'étendant sur tout le pourtour de la paroi latérale. La paroi de soutènement 25 est fixée de manière amovible, par exemple par vissage, sur la paroi latérale et est par exemple réalisée dans un métal. On pourra prévoir que la paroi de soutènement 25 ne s'étende pas sur tout le pourtour de la paroi latérale mais qu'elle soit divisée en quatre parois de soutènement s'étendant chacune sur une des quatre faces de la paroi latérale de la cuve 4, chacune des quatre parois de soutènement s'étendant seulement sur une partie de la largeur de la face de la paroi latérale de la cuve 4 sur laquelle elle est fixée, par exemple la moitié de cette longueur. On réduit de la sorte le coût de fabrication de la paroi de soutènement 25. On pourra également prévoir de remplacer cette paroi de soutènement par quatre organes d'appui, par exemple des poteaux métalliques à section rectangulaire, s'étendant sensiblement parallèlement à la direction verticale et fixé au fond de la cuve 4 dans les quatre coins de la cuve 4. Ces organes d'appui sont destinés à soutenir le conteneur supérieur 6.Since the grid support 24 does not effectively support the upper container 6, the tank 4 further has at least one retaining wall 25 of the upper container 6, the retaining wall 25 being substantially horizontal and projecting on a surface This retaining wall 25 forms a raven extending all around the side wall. The retaining wall 25 is fixed detachably, for example by screwing, on the side wall and is for example made of a metal. It can be provided that the retaining wall 25 does not extend all around the sidewall but is divided into four retaining walls each extending on one of the four sides of the side wall of the vessel 4 , each of the four retaining walls extending only over part of the width of the face of the side wall of the tank 4 to which it is attached, for example half that length. In this way, the manufacturing cost of the retaining wall 25 is reduced. It will also be possible to replace this retaining wall with four support members, for example rectangular metal posts, extending substantially parallel to the direction vertical and fixed to the bottom of the tank 4 in the four corners of the tank 4. These support members are intended to support the upper container 6.

La cuve 4 présente également un épaulement de soutènement 26 du conteneur supérieur 6. La paroi de soutènement 25 et l'épaulement de soutènement 26 présentent des formes aptes à coopérer avec la forme du conteneur supérieur 6 afin de le maintenir en place dans la cuve 4.The tank 4 also has a retaining shoulder 26 of the upper container 6. The retaining wall 25 and the retaining shoulder 26 have shapes capable of cooperating with the shape of the upper container 6 to hold it in place in the tank 4 .

Par ailleurs, le système de stockage 2 de la figure 3 est dépourvu de borne. Il est à la place muni d'un couvercle d'accès à la cuve 28, par exemple monté mobile en rotation autour d'un axe vertical ou bien horizontal, ou encore monté mobile en translation horizontale. Ce couvercle 28 délimite une extrémité supérieure du système de stockage 2, et est placé par exemple au niveau du sol ou bien à hauteur non nulle du sol pour améliorer l'ergonomie du système de stockage 2.In addition, the storage system 2 of the figure 3 has no terminal. It is instead provided with an access cover to the tank 28, for example rotatably mounted around a vertical or horizontal axis, or movably mounted in horizontal translation. This cover 28 delimits an upper end of the storage system 2, and is placed for example at ground level or at non-zero height of the floor to improve the ergonomics of the storage system 2.

On a représenté en figure 4 un système de stockage 2 selon une autre variante de réalisation de l'invention. Cette variante de réalisation diffère de la précédente en ce que le conteneur inférieur 8 comporte des parois rigides et étanches 29. Il est par exemple réalisé dans un métal inoxydable, éventuellement renforcé avec des renforts structuraux. Ces renforts permettent de mettre sous pression le lixiviat L présent dans le conteneur inférieur 8, par exemple à des fins de nettoyage de ce dernier, sans pour autant détériorer les parois 29 du conteneur inférieur 8. On s'assure ainsi que le conteneur inférieur 8 présente une longévité mécanique suffisamment importante de sorte qu'il ne soit pas nécessaire de le changer.We have shown in figure 4 a storage system 2 according to another embodiment of the invention. This embodiment differs from the previous embodiment in that the lower container 8 comprises rigid and sealed walls 29. It is for example made of a stainless metal, optionally reinforced with structural reinforcements. These reinforcements make it possible to pressurize the leachate L present in the lower container 8, for example for the purpose of cleaning the latter, without deteriorating the walls 29 of the lower container 8. This ensures that the lower container 8 has a sufficiently long mechanical life so that it is not necessary to change it.

Le système de stockage 2 comporte également des moyens de raccordement 30 à des moyens de pompage du liquide présent dans le conteneur inférieur 8. Ces moyens de raccordement comportent notamment un conduit 32 qui s'étend hors de la cuve 4 et débouche à l'extérieur au niveau du sol, à l'air libre. Il débouche éventuellement sous une plaque de protection 34 verrouillée dont seuls des opérateurs habilités possèdent les moyens pour la déverrouiller. On pourra prévoir que le conduit 32 s'étende en grande partie à l'intérieur de la cuve 4, voire même intégralement dans la cuve 4, ou bien que le système de stockage 2 soit muni d'un système de pompage tel que celui décrit dans le document FR-2 960 226 . Lorsqu'on souhaite vider le conteneur inférieur, un opérateur ouvre la plaque de protection 34 et raccorde les moyens de raccordement 30 à une pompe à l'endroit où le conduit 32 débouche à l'extérieur. Il peut alors pomper le lixiviat L présent dans le conteneur inférieur 8.The storage system 2 also comprises connection means 30 to means for pumping the liquid present in the lower container 8. These connection means include in particular a duct 32 which extends out of the tank 4 and opens to the outside at ground level, in the open air. It eventually opens under a locked protection plate 34 which only authorized operators have the means to unlock it. It can be provided that the duct 32 extends largely inside the tank 4, or even completely in the tank 4, or that the storage system 2 is provided with a pumping system such as that described. in the document FR-2 960 226 . When it is desired to empty the lower container, an operator opens the protection plate 34 and connects the connection means 30 to a pump where the conduit 32 opens out. It can then pump the leachate L present in the lower container 8.

Bien entendu, on pourra apporter à l'invention de nombreuses modifications sans sortir du cadre des revendications ci-jointes. La cuve et les conteneurs supérieur et inférieur pourront être réalisés dans des matériaux différents de ceux énoncés dans ce qui précède. Ils pourront aussi présenter d'autres formes que celles décrites dans ce qui précède et dans les dessins.Of course, many modifications may be made to the invention without departing from the scope of the appended claims. The tank and the upper and lower containers may be made of materials different from those set forth above. They may also have other forms than those described in the foregoing and in the drawings.

La paroi de soutènement pourra être venue de matière avec la paroi latérale de la cuve.The retaining wall may be integral with the side wall of the vessel.

On pourra également prévoir de combiner les différents modes de réalisation entre eux.It will also be possible to combine the various embodiments with each other.

Claims (13)

  1. System for storing waste (2) comprising:
    - a storage tank (4), and
    - an upper container (6) arranged in the tank (4) and intended to receive waste, characterised in that it comprises
    - a lower liquid-tight container (8) arranged in the tank (4) and positioned under the upper container (6),
    the lower container (8) comprising a lid (12) having at least one orifice (14) and having a shape adapted to direct liquids towards the orifice (14) by gravity.
  2. Storage system (2) according to the preceding claim, wherein the edges of the orifice (14) of the lid (12) of the lower container (8) are extended by retention walls (18) extending substantially vertically downwards.
  3. Storage system (2) according to any one of the preceding claims, wherein the upper (6) and lower (8) containers are removable.
  4. Storage system (2) according to any one of the preceding claims, wherein the upper container (6) comprises a bottom (15) having at least one orifice (16) and having a shape adapted to direct liquids towards the orifice (16) by gravity.
  5. Storage system (2) according to the preceding claim, wherein the orifice (16) of the upper container (6) is located opposite the orifice (14) of the lower container (8).
  6. Storage system (2) according to any one of the preceding claims, wherein in a plane of vertical cross-section, the lid (12) of the lower container (8) has the same general cross-section as a funnel.
  7. Storage system (2) according to any one of the preceding claims, wherein the lid (12) of the lower container (8) is formed by two walls (12a, 12b) inclined towards the orifice (14) of the lower container (8).
  8. Storage system (2) according to any one of the preceding claims, further comprising means (30) for connection to means for pumping liquids present in the lower container (8).
  9. Storage system (2) according to any one of claims 1 to 6, wherein the lower container (8) is formed by a sealed membrane (22) provided in a meshed support (24).
  10. Storage system (2) according to any one of claims 1 to 6, wherein the lower container (8) comprises rigid and sealed walls.
  11. Storage system (2) according to the preceding claim, wherein the upper container (6) is placed on the lower container (8).
  12. Storage system (2) according to any one of the preceding claims, wherein the tank (4) has at least one retaining wall (25) for retaining the upper container (6), this retaining wall (25) projecting over an inner surface of a lateral wall of the tank (4).
  13. Storage system (2) according to any one of the preceding claims, wherein the tank (4) has a retaining shoulder (26) for retaining the upper container (6).
EP15201047.6A 2014-12-31 2015-12-18 System for storing waste and percolating water Not-in-force EP3040294B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1463468A FR3031095B1 (en) 2014-12-31 2014-12-31 SYSTEM FOR STORING WASTE AND LIXIVIAT

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EP3040294A1 EP3040294A1 (en) 2016-07-06
EP3040294B1 true EP3040294B1 (en) 2017-07-12

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EP (1) EP3040294B1 (en)
CN (1) CN205652689U (en)
ES (1) ES2643018T3 (en)
FR (1) FR3031095B1 (en)

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CN112960304B (en) * 2021-02-02 2022-04-19 é›·æ´ª Compression storage device based on hospital nursing discarded object

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Publication number Priority date Publication date Assignee Title
IT1242259B (en) * 1990-10-11 1994-03-03 Giancarlo Galeazzi WASTE COLLECTION DEVICE
FR2949107B1 (en) * 2009-08-11 2013-05-31 Plastic Omnium Cie DEVICE FOR RECEIVING A WASTE COLLECTION CONTAINER AT LEAST PARTIALLY BURIED
FR2960226B1 (en) 2010-05-19 2013-04-05 Plastic Omnium Cie WASTE COLLECTION CONTAINER FOR EASY CLEANING
FR2994958B1 (en) * 2012-09-06 2016-02-05 Plastic Omnium Cie WASTE CONTAINER

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CN205652689U (en) 2016-10-19
ES2643018T3 (en) 2017-11-21
FR3031095A1 (en) 2016-07-01
FR3031095B1 (en) 2017-02-10
EP3040294A1 (en) 2016-07-06

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