KR20100070347A

KR20100070347A - Waste collection and management

Info

Publication number: KR20100070347A
Application number: KR1020107007522A
Authority: KR
Inventors: 마그너스 엑홀름
Original assignee: 엔박 에이비
Priority date: 2007-11-08
Filing date: 2008-10-28
Publication date: 2010-06-25
Also published as: CN101855149B; WO2009061264A1; HK1148721A1; EP2207738A1; CN101855149A; EP2207738A4

Abstract

In a method for the management of waste deposited in waste inlets and collected in under-ground waste containers (5) that are emptied by opening a wall section thereof as the container is in a raised emptying position by a collecting vehicle (20), waste inlets (2; 2'; 2'') are positioned at optional locations by detachably connecting spaced waste inlets to a designated waste container through waste suction piping (4) and by detachably connecting the container to a vacuum source (10) through separate air exhaust piping (9). The invention also concerns a waste collection and management system as well as an underground waste collection container.

Description

Garbage Collection and Disposal {WASTE COLLECTION AND MANAGEMENT}

The present invention generally relates to the collection and disposal of waste collected in a waste inlet and collected in a waste container, which is in the form of being emptied through an open vessel wall when the container is in an elevated position by a suitable waste truck.

A recent approach in the field of general waste disposal is to collect waste in relatively small containers, each of which is arranged in a designated underground bunker or similar underground space, each directly connected to a separate waste inlet above the ground. have. In particular, the waste is in immediate communication with the interior of the container and is collected in a waste inlet that is applied directly to the upper part of the container. The emptying of the rubbish collected in such underground containers is carried out by a particular garbage collection truck carrying a lifting device connectable to complementary lifting means such as lifting hooks, lifting eye bolts, etc., provided at the upper part of the individual garbage inlet. In particular, when a truck lifting device is connected to the inlet-container combination, the latter is lifted to a position above the truck's top open waste collection space and then the one or more container bottom covers are suspended to empty the collected waste. The bottom cover is then sealed again and the inlet-container combination is restored to its designated underground bunker interior location.

As mentioned above, currently used underground container systems require low investment by requiring only small excavation operations; And a very attractive means in terms of good transport economy and at the same time have serious disadvantages. A major disadvantage of the systems currently in use is the limited options available for the location of the inlet-container combination. In fact, the inlet-container combination should be located in a place accessible to the truck, in particular the lifting device, and should be located in a place where the parking of the truck does not present danger and / or inconvenience to neighboring residents. As a result, this means that the garbage inlet will be located in a place that is not easy or convenient for a user, such as a resident of a residential area where a waste disposal system is provided.

JP 408244906 discloses an apparatus which at least partially eliminates some of the disadvantages of underground container systems currently in use. Specifically, the document discloses that the waste is collected in an underground waste container which is normally connected from a waste inlet where the waste is selectively located and the waste is transported by the intake air stream generated in the waste intake and air discharge pipes and the pipes are transferred to the underground bunker in which the container is housed. Initiating a connected system. According to JP 408244906, such waste intake and exhaust pipes form a tight connection with the underground bunker, but pass through the bunker in indirect communication with the actual container, the latter being opened to the container when the latter is lowered into the receiving position. Is sealed by. This means that the interior of the entire bunker is evacuated and that the added system volume has to be evacuated with respect to each evacuation operation, leading to additional energy consumption as well as delays in operation. Sealing at the upper end of the bunker also exposes it to very dangerous situations.

It is therefore a general object of the present invention to provide an improved waste disposal method for a waste collection device in the form of an underground container.

It is a particular object of the present invention to propose a method for the collection and disposal of waste collected in a system in the form of an underground container which provides not only the economical workability of the system but also the improved cost efficiency.

In particular, another object of the present invention is to provide an improved waste collection and disposal system in the form of an underground container that provides not only the environmental benefits of the system but also the excellent economics.

Another object of the present invention is to propose an improved underground garbage collection container for use in the system of the present invention.

This object of the invention is defined by the appended claims.

FIELD OF THE INVENTION The present invention generally relates to the collection and disposal of rubbish collected in an underground rubbish bin collected and optionally located within a rubbish inlet, wherein the bin is emptied by opening the container wall when present in an elevated position. In order to achieve the above object of the present invention, at least one separate waste inlet is detachably tightly docked to a designated waste container with respect to the container being lowered to a waste storage position and the container is detachable to a vacuum source. To provide a tight connection and to allow the tight connection to be undocked in connection with the lifting and lowering of the container at the waste receiving location.

In a particularly preferred embodiment for producing a waste container which can be easier and more economically empty, the present invention proposes that the waste container is automatically docked and undocked with an associated pipe in connection with its emptying operation. In another embodiment an air filter is provided inside the vessel to filter the air drawn in from the vessel before the air enters the air outlet pipe.

In another embodiment of the present invention, an entire container including a lifting device connecting means is provided below the ground in the waste storage position.

According to another aspect of the present invention there is provided a waste container for use in the system of the present invention, the container having an enclosed upper container end and a detachable pipe connection, the pipe connections being provided on two side walls respectively and each wall It communicates with the inside of the container through the opening.

The advantages provided by the present invention in addition to those described above will be readily understood from the following detailed description of embodiments of the invention.

Further objects and advantages of the invention may be understood with reference to the following detailed description and the accompanying drawings.
1 is a schematic diagram of an embodiment of a waste collection and disposal system according to the present invention.
2A is a schematic diagram of a waste container of the waste disposal system of FIG. 1.
2B is a partial cross-sectional view of the area of the waste suction pipe docking means of the waste container of FIG. 2A.
FIG. 2C is a partial cross-sectional view of the area of the air exhaust pipe docking means of the rubbish bin of FIG. 2A.
3A is a schematic partial cross-sectional view through the waste container mounting of the waste disposal system of FIG. 1 on a waste receiving site.
FIG. 3B is a schematic partial cross-sectional view through the vessel mounting of FIG. 3A on waste emptying. FIG.
4 is a schematic perspective view illustrating a prior art underground container system.

The present invention is described in more detail with reference to the embodiments shown in the attached Figures 1, 2A-C and 3A-B. This embodiment of the present invention relates to a very schematic illustration of a waste collection and disposal system comprising one or more separate waste inlets of a type primarily used in outdoor environments. This exemplary embodiment should not be construed to limit the invention to the applications specifically shown or to the particular design or shape of the waste inlet used, or to other examples that are not essential to the basic principles of the invention. Modifications and variations of the illustrated embodiments are further described below.

The prior art underground container system, briefly mentioned at the outset, is only practically applicable in areas with low population densities and in areas where garbage collection trucks are mobile and parkable at reasonable distances from buildings where collection waste is generated. This is due to the inherent characteristics of the system and will be briefly described with reference to a typical example of the prior art waste inlet-container combination 100 shown in FIG. FIG. 4 schematically illustrates a known underground container 105 during the adjustment operation to a chamber or bunker 116 that is open above, where a normal waste receiving phase will be located in an underground small pit. The vessel 105 is usually supported on the safety platform unit 119 which rises to a position approximately the same height as the ground when lifting the vessel for emptying for stability reasons. Therefore, the platform unit 119 is mainly used to avoid damage to people by closing the chamber which is open upward when the container is lifting, and may also be used for positioning of the container. 4 also shows a known system in which the garbage inlet unit 102 is mounted directly in the closed upper position of the container 105. Although not specifically shown in FIG. 4, it should be understood that the inlet unit 102 is open or otherwise controlled and is in immediate communication with the interior of the vessel 105.

In such a conventional method, when the inlet 102 and the container 105 form a unit, the inlet 102 is disposed of garbage to allow the truck lifting device to be connected to the lifting device connecting means 115 located above the inlet structure. The collection truck would have to be located at a distance sufficient to drive and park close enough to the inlet-container combination 100. This constraint, in addition to the inherent small waste volume, makes such inlet-container combinations less attractive. The main disadvantage of the prior art systems is that they can be located in close proximity to the user very rarely for the practical reasons described above. Specifically, the possible location for the entrance requires the user to transport the garbage over relatively long distances, which greatly reduces the convenience of using the system. Also, since the prior art idea requires the entrance to be in a suitable truck parking location, the location should be chosen so that the vertical entrance structure does not injure the user and / or interfere with other activities in the area.

The invention will be described with reference to the embodiments shown in the accompanying drawings by way of example. In Figure 1 the waste collection and disposal system 1 of the present invention is shown very schematically. This starts with free standing, called so-called “litter bin” type inlets, and one or several inlets or inlet modules 2, 2 ′ for non-limiting purposes and individually connected to the waste suction pipe 4. 2 "). The inlets 2, 2 ', 2" may optionally be in open communication with the suction pipe 4 or in control communication with them via a valve labeled V1. Likewise, in the illustrated embodiment, the intake pipe 4 is provided with an air inlet valve AV separated at the end 4A, which is spaced apart-for the vessel described later-which creates the intake airflow described below. It should be emphasized, however, that the present invention is not limited to such shapes, wherein the inlet of the air is provided through an air inlet valve arranged differently depending on the type of waste inlet used, and / or as known in the waste disposal art. It can be provided through a real inlet module or through a garbage chute.

The opposite end 4B (see FIG. 3B) of the intake pipe 4 is connected to and penetrated the wall of the underground bunker 16 to be adjusted to the underground container 5 of the present invention described in detail below. There is also a spaced end 9B provided with an air exhaust pipe 9 to the system 1 and connected to the waste intake 4 and the vacuum source 10 for generating intake airflow in the air exhaust pipe 9. . The vacuum source 10 may be an underground vacuum unit 10 of a general type well known in the vacuum-operated garbage collection art, and may include a conventional fan, a silencer, and a ventilation pipe, although not specifically shown. The opposite end 9A (see FIG. 3B) of the air exhaust pipe 9 is likewise connected to and penetrated the wall of the underground bunker 16. The flow of waste through the intake pipe 4 and the flow of air through the discharge pipe 9 are likewise regulated by valves marked V2 and V3, respectively, if necessary.

The present invention is based on having not only waste suction but also underground containers 5 detachably or detachably connected to air discharge pipes 4 and 9, respectively. Specifically, the inlet or inlets 2, 2 ′, 2 ″ are connected to an underground waste container 5, which is connected to the waste intake and air discharge pipes (4, 9 and 9, respectively) by the vacuum source 10. Housed waste W, which is sucked through the suction pipe 4 by means of an air stream generated in Fig. 6. In a conventional manner, the container 5 is placed on a standard safety platform 19 for safety purposes as described above. It is supported and exists at the garbage storage position WR (see FIG. 3A) which will be described later.

Typically the filter unit 17 is located inside the container 5 between the connection of the suction pipe 4 and the discharge pipe 9, which will be described generally below. The purpose of the filter 17 is to clean the air before exiting through the vacuum source 10. The vessel 5 is typically open to one or several portions 6; 6A, 6B in the vessel empty position or phase WE (see FIG. 3B) as shown by dash-dot lines in FIG. 2A. Has a bottom wall. According to the invention an upper lifting device connector 15 for connecting to a lifting device 21 of a suitable garbage truck 20 is installed directly in the container, preferably in the upper side position, so that the container 5 is inside the bunker 16. It will not extend above the upper portion 5A of the container 5 in the waste receiving phase WR accommodated therein. Indeed, at the waste receiving position WR the vessel 5 is completely at the underground bunker 16 with a closed upper end 5A which typically has a lifting device connector 15 approximately equal to the surrounding ground G. Is accepted. Alternatively or additionally, the upper end of the bunker 16 is separated by a hatch 18 which is removed or suspended from the waste empty WE at the waste receiving position WR of the container 5. It can be sealed. This shape of the present invention will eliminate the risk of damage or injury caused by the container 5 and / or lifting device connector 15 of the system 1.

According to the invention the detachable or detachable connection between the waste intake 4 and the air discharge pipe 9 and the container 5 preferably allows the container 5 to be elevated and lowered from and to the bunker 16 respectively. By automatically leaving and reconnecting. Embodiments of such detachable linkages according to the present invention will be described with reference to FIGS. 2A-2C and 3A-3B. The suction pipe 4 is detachably connected to the first side wall portion 7 of the waste container 5 and the air discharge pipe 9 is detachably connected to the second side wall portion 8 of the waste container 5. Respectively, through which docking means 11, 12 and 13, 14, which are complementary to each other, are provided on the container side wall portions 7, 8 of the container 5, respectively, and also on the respective waste suction and air discharge pipes (4 respectively). , 9) at the container facing ends 4B and 9A.

The docking means comprises first vessel docking means (11, 12) comprising docking guide surfaces (11A and 12A, respectively) inclined opposite to the first and second sidewall portions (7 and 8, respectively) of the container (5). And second pipe docking means (13) having docking surfaces (13A and 14A, respectively) inclined opposite the container facing ends (4B and 9A, respectively) of the waste intake and air exhaust pipes (4 and 9, respectively). 14). Each pair of docking guide surfaces 11A, 12A, 13A, and 14A interacting at the receiving position WR of the container 5 has an angle suitable for automatically forming and automatically separating tight connections when gathered together. Formed between (not specifically shown). In a non-limiting example the outwardly directed guide surfaces 11A, 12A of the vessel side docking means 11, 12 can form an angle of between about 330-335 ° between them, and the pipe end docking means 13, 14. The guide surfaces 13A, 14A facing inwardly may form an angle of about 25-30 ° therebetween.

The first docking means 11, 12 are attached to the outside of the respective container walls 7, 8 at their outer ends, and the docking guides associated therewith in communication with the container 5 via the wall openings 7A, 8A. It consists of short pipe sections with flanges forming surfaces 11A and 12A. In a practical embodiment the vessel 5 generally has a quadrilateral cross section so that the two detachable vessel docking means 11, 12 and the associated wall openings (7A and 8A, respectively) are generally opposite sidewall portions. Are provided at (7, 8). However, it should be emphasized that the term side wall portion used in the present invention in this regard is not limited to that the position of the docking means should be present on the other side wall of the container. Indeed, in the present invention, two specific sidewall portions may optionally be present, such as located side by side on one and the same sidewall or on adjacent sidewalls. In the container 5 waste receiving position WR, the first and second docking means 11, 12, 13 and 14, respectively, interact with each other so that the waste suction pipe 4 and the air discharge pipe 9 are respectively connected to the container ( 5) to form a tight docking connection (DC1, DC2) connected to the inside.

With reference to FIG. 2A, two detachable pipe docking or connecting means 11, 12 and respective associated wall openings (7A and 8A, respectively) of the container 5 are different above the open bottom wall 6; 6A, 6B. It is provided at a height. This is generally the height between the wall openings 7A, 8A, specifically above the wall opening 7A where suctioned waste W is collected and below or equal to the other wall opening 8A. In this case, an air filter 17 covering its cross section as a whole is positioned inside the container 5. This reliably filters the exhaust air drawn in from the vessel 5 before the air enters the air exhaust pipe 9 so that the vessel 5 acts as a separator and filter unit.

The present invention provides much better performance than existing underground vessel systems as described above. Indeed, the separate inlet and underground containers according to the invention allow one or several inlet modules to be positioned freely or selectively practically with respect to each other and / or to the container. This shape of the system makes it possible to provide a very user friendly system. Another major advantage of this shape is that the underground container is completely hidden in the ground in all cases, except for the actual empty phase WE, so that it does not cause a risk of damage or physical damage of other factors. Other advantages of the present invention over existing underground vessel systems are as follows: improving the flexibility of the system with respect to the possibility of placement and combination of other types of inlet and inlet modules; The system can be easily formed, greatly improving safety in that it does not need to drive the empty truck into the yard or alley; The system requires very limited areas that cannot be used for other purposes.

In an embodiment of the invention, one or several waste inlets 2; 2 '; 2 "are located at an optional distance from the individual waste containers 5, which are typically hatched to the underground bunker 16. 18) fully received below and positioned with the upper portion 5A approximately equal to the ground G. Each said waste inlet then passes through the waste suction pipe 4 to the first sidewall of the container 5; It is detachably connected to the part 7, whereby several waste inlets 2; 2 ′; 2 ″ are typically connected to the container 5 by branching from the waste suction pipe 4. Similarly, the vacuum source 10 is detachably connected to the second side wall portion 8 of the waste container via an air discharge pipe 9. During operation of the system 1, the vacuum source 10 is connected to the second end 9B of the air exhaust pipe in a waste receiving bed WR having a container 5 receiving position in the bunker 16. The intake air stream is thereby applied continuously or intermittently into the waste intake 4 and air discharge 9 pipes. As a result, the waste W collected at the inlets 2, 2 ', 2 "is sucked into the container 5 continuously or in sequence.

The container 5 is emptied at regular intervals or when displayed by a touch sensor (not shown) or similar display device. Typically, a suitable garbage truck 20 for conveying the lifting device 21 is transported by driving to a position proximate to the container 5 and, if relevant, after opening the hatch 18, with the container connecting means 22. Together with the container having the lifting device connector 15. The container 5 is then lifted by the lifting device 21 from the waste receiving position WR to the emptying position WE above the infeed opening of the truck. The vessel 5 is then emptied through the conventional open bottom wall or walls 6; 6A, 6B. The docking means 11, 12, 13, 14 described above allow the suction (4) and discharge (9) pipes to be automatically undocked or connected from the vessel (5) walls (7, 8) during the initial lifting of the vessel. To be separated. After being emptied, the waste suction and air discharge pipes (4 and 9, respectively) are associated with the respective first vessel side wall portion 7 and the second vessel side wall portion in connection with the lowering of the container 5 to the waste storage position WR. It is automatically docked to (8). Thereby, the docking guide surfaces 11A, 12A and the garbage intake and air discharge pipes 4, 9 in which the tight docking connections DCl, DC2 are generally inclined oppositely at the first and second side wall portions 7, 8. Is formed by generally oppositely inclined docking surfaces 13A, 14A at the container facing ends 4B, 9A of a), which are complementary first and mutually interacting at the container 5 waste receiving position WR with each other; Second docking means (11, 12; 13, 14) are formed. Although the emptying operation has been described as being performed on a truck barlock, which is the emptying position by the currently available truck, other future truck geometries may be used to empty the container at a position on the side or corner of the truck or directly on the side of the actual truck. You can allow or request.

Alternatively, various other systems other than the embodiments specifically illustrated in the present invention may be used without departing from the spirit of the present invention. An example is the use of a waste container of a shape other than the general box-shaped shape with two mutually opposite sidewall pairs. Thus, in connection with the operation of the system, the container may have only one cylindrical, elliptical or other shaped side wall or four or more side walls. The vessel and pipe docking means can be of any other shape that can be automatically docked tightly and conveniently undocked, but in other ways can be full or partial manual means operated by a truck driver. Likewise, the present invention is not limited to using a vacuum source in the form of a locally provided underground fan installation. Instead, in connection with the operation of the system, vacuum pressure from a fan facility located locally on the ground or diverted vacuum pressure from a larger waste terminal or center may be supplied.

In another advantageous embodiment, the system according to the invention is not limited to the example having a separate outdoor waste inlet form, but also present and future available indoor and outdoor waste inlet modules, lightweight, so-called litter bins. It can be applied to a variety of examples ranging from garbage inlet chute in a multi-story building. In addition, the system of the present invention may advantageously include a combination of such other types of inlets. Thus, the basic principles of the present invention can be applied to any waste system that is practically suitable. In certain instances, as covered by the present invention, such underground waste disposal methods and systems can be advantageously used to collect other fractions of waste such as recycled glass, plastics and paper. Such examples may also be advantageously used in combination with conventional stationary vacuum waste collection systems. Since the recyclable waste fraction is usually collected in smaller volumes than flammable bulk waste, the underground containers of the present invention with limited storage capacity will be well suited for use in such combinations. In such instances it is very convenient in many cases to switch to underground vessel suction from a central collection station or terminal as described above.

While the invention has been described in connection with what is considered the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Accordingly, the present invention is intended to embrace various modifications and equivalents falling within the spirit and scope of the appended claims.

Claims

When the container is lifted from the waste receiving position WR to the emptying position WE, the container is emptied through the container walls 6; 6A, 6B by opening the container wall, and the waste inlet or inlets 2; 2 '; 2 ") is located at an optional distance from the individual waste bins 5, through the waste suction pipe 4, the waste inlet or inlets are connected to an underground bunker 16 which houses the individual waste bins 5, and a vacuum source. 10 is connected to the underground bunker 16 via an air discharge pipe 9, and the waste intake and air discharge pipes are connected by a vacuum source 10 in which the intake air flow is connected to the second end 9B of the air discharge pipe. A method of collecting and treating waste (W) collected in at least one waste inlet (2; 2 '; 2 ") generated in (4 and 9, respectively) and collected in underground waste container (5), wherein the container In the garbage storage position WR by a suitable garbage truck 20 To the first and second container sidewalls (7 and 8, respectively) in connection with the waste suction and air discharge pipes (4 and 9, respectively) descending to the waste storage position WR. And a tight docking connection (DC1, DC2), wherein the tight docking connection is undocked in connection with the container (5) being lifted from the waste receiving position (WR).

2. The first container docking means (11, 12) according to claim 1, wherein the first container docking means (11, 12) have docking guide surfaces (11A and 12A, respectively) that are generally inclined against the first and second sidewall portions (7 and 8, respectively). A second complementary with a docking surface (13A and 14A, respectively) formed and inclined generally against the container facing ends (4B and 9A, respectively) of the waste intake and air exhaust pipes (4 and 9, respectively). Forming pipe docking means (13, 14), the first and second docking means in the container (5) waste receiving position (WR) being controlled and cooperating automatically by descending to the waste storage position (WR) Forming docking connections (DCl, DC2) that tightly dock and undock.

Method according to one of the preceding claims, characterized in that the exhaust air drawn in from the vessel (5) is filtered before the air enters the air exhaust pipe (9).

The entire container 5 according to any one of claims 1 to 3, comprising means 15 for connecting to the lifting device 21 of the garbage truck 20, at the waste receiving position WR. (G) a method characterized by adjusting below.

The method according to any of the preceding claims, characterized in that several waste inlets (2; 2 '; 2 ") are connected to the container (5) by branching from the same waste suction pipe (4). How to.

6. The underground bunker 16 according to claim 1, wherein the complete container 5 is placed under a hatch 18 which opens in a removable or otherwise manner located approximately equal to the ground G. 7. Characterized in that accommodated in.

At least one rubbish inlet (2; 2 '; 2 ") associated with an underground rubbish bin (5) having an open wall (6; 6A, 6B) for emptying, connected to the at least one rubbish inlet, and the rubbish bin (5) A waste suction pipe (4) connected to and penetrated to the underground bunker (16) for receiving; and a vacuum source (10) connected to the underground bunker to penetrate and to generate intake airflow to the waste suction and air discharge pipes. As a waste (W) collection and treatment system 1 comprising an air discharge pipe 9, which is provided, an upper lifting device connector 15 is provided, which is designed to be connected to the lifting device 21 of a suitable waste truck 20, Complementary docking means (11, 12 and 13, 14) are provided on the respective container sidewalls (7, 8) of the container (5), and on the respective waste intake and air discharge pipes (4 and 9, respectively). Provided at the container facing ends 4B and 9A, and the docking means interoperate. To form respective tight docking connections (DCl, DC2).

8. The docking guide surface according to claim 7, wherein the docking means (11, 12 and 13, 14) are inclined generally against the first and second sidewall portions (7 and 8, respectively) of the container (5). Docking means generally opposite to the first container docking means (11, 12) having 11A and 12A and the container facing ends (4B and 9A, respectively) of the waste intake and air discharge pipes (4 and 9, respectively) Consisting of second pipe docking means (13, 14) having surfaces (13A and 14A, respectively), said first and second docking means interacting automatically at the container (5) waste receiving position (WR) and automatically And a waste (W) collection and treatment system (1), which form docking connections (DCl, DC2) for docking and undocking respectively.

The waste (W) collection and treatment according to claim 7 or 8, characterized in that the filter unit (17) is located inside the container (5) between the connection of the suction pipe (4) and the connection of the discharge pipe (9). System (1).

10. A container according to any one of claims 7 to 9, in which the container 5 is placed in the underground bunker 16 together with the upper end 5A of the container approximately equal to the surrounding ground G. Waste (W) collection and treatment system (1), characterized in that it is accommodated.

Use in a system (1) according to any of claims 7 to 10, having at least one side wall (7, 8), an open bottom emptying wall (6; 6A, 6B) and an upper closure end (5A). Underground waste (W) collection vessel (5), wherein the vessel upper end (5A) includes a lifting device connector (15) for connecting to the lifting device (21) and two sidewall portions (7, 8), respectively. Receptacle, characterized in that it is provided with detachable pipe connection means (11, 12) in communication with the interior of the vessel through respective wall openings (7A, 8A).

The two detachable pipe connecting means (11, 12) and the associated wall openings (7A and 8A, respectively) are located at different heights above the open bottom wall (6) and are generally An underground debris (W) collection container (5), characterized in that an air filter unit (17) is located inside the container (5) which covers the entire cross section at the height between the wall openings (7A, 8A).

13. The container (5) according to claim 11 or 12, wherein the container (5) generally has a quadrilateral cross section and the two detachable pipe connecting means (11, 12) and associated wall openings (7A and 8A, respectively), respectively. Underground waste (W) collection container (5), characterized in that a generally provided in the opposing side wall (7, 8).