Drainage and cleaning system, filter / adsorption inspection element for such a drainage and cleaning system and use thereof

Abstract

The invention relates to a drainage and cleaning system (10), wherein the drainage and cleaning system (10) has a filter / adsorption inspection element (20) and a drainage gutter (30) or drainage gutter line connected, in particular reversibly, to the filter / adsorption inspection element (20), in particular for discharging and cleaning surface water, wherein the filter / adsorption inspection element (20) has a housing (40) with at least one water inlet opening (50) for connecting the drainage gutter (30) and at least two, preferably at least three, water outlet openings (60a, 60b, 60c) for different water discharge volumes and at least two, preferably at least three, cleaning chambers (70a, 70b, 70c) for different cleaning stages. The invention also relates to a filter / adsorption inspection element (20) for use for such a drainage and cleaning system (10) and to the use of such a filter / adsorption inspection element (20) for a drainage and cleaning system (10).

Description

[0001] Drainage and purification system, filter / adsorption inspection element for such a drainage and purification system and its use"

[0002] Description

[0003] The invention relates to a drainage and cleaning system according to the preamble of claim 1, and further to a filter / adsorption inspection element and its use for a drainage and cleaning system according to the preambles of claims 17 and 18.

[0004] Systems for cleaning runoff rainwater have been known for some time and are used, for example, in the form of filter inserts for street drains. Such filter inserts are described, for example, in DE 299 15 75 Ul or DE 20 2006 006 753 Ul. A disadvantage of such filter systems is that they are only suitable for a low flow rate of runoff water, clog easily, and are difficult to clean and maintain.

[0005] The invention is based on the objective of providing a drainage and cleaning system that avoids the aforementioned disadvantages, is inexpensive to manufacture and is improved in terms of maintenance and servicing compared to previous systems.

[0006] This problem is solved by means of a drainage and cleaning system according to claim 1 and by means of a filter / adsorption revision element according to claim 17 and its use for a drainage and cleaning system according to claim 18.

[0007] In particular, the problem is solved by a drainage and cleaning system, wherein the drainage and cleaning system comprises a filter / adsorption inspection element and a drainage channel or drainage channel string connected to the filter / adsorption inspection element, in particular reversibly, for the drainage and cleaning of surface water, and wherein the filter / adsorption inspection element comprises a housing with at least one water inlet opening for connecting the drainage channel and at least two, preferably at least three, water outlet openings for different water outlet volumes, as well as at least two, preferably at least three, cleaning chambers for different cleaning stages.

[0008] A key aspect of the invention is that the drainage and cleaning system according to the invention is composed, firstly, of a filter / adsorption inspection element and a reversibly connected drainage channel or drainage channel string, particularly for the drainage of surface water, and secondly, that the filter / adsorption inspection element has at least three cleaning chambers, each assigned to different cleaning stages, which are arranged one after the other within the filter / adsorption inspection element in the direction of flow of the drainage channel, so that draining water first flows through a first cleaning chamber, then a second cleaning chamber, and subsequently a third cleaning chamber, and, depending on requirements and degree of soiling, possibly also through further cleaning chambers.

[0009] The water supply to these cleaning chambers within the filter / adsorption inspection element is provided by a water inlet opening arranged in the housing of the filter / adsorption inspection element, which in turn has, preferably directly, a connection for the drainage channel or drainage channel string.

[0010] A further important aspect of the drainage and cleaning system according to the invention is that the housing has at least two, preferably at least three, water drainage openings which are assigned to different water drainage volumes, so that the drainage and cleaning system according to the invention is suitable for both low amounts of precipitation and for rain events with high amounts of precipitation, wherein, depending on the case, different or even all water drainage openings are flowed through by draining water.

[0011] According to a preferred embodiment of the invention, the water inlet opening is arranged in an upper lateral section of the housing and has a connection for a detachable, preferably positive-locking, and in particular tight connection of the drainage channel or drainage channel string with the filter / adsorption inspection element.

[0012] In this way, it is ensured that outflowing water tends to flow from the drainage channel into the filter / adsorption inspection element following a gradient and flows through the filter / adsorption inspection element using gravity.Equipping the water inlet opening of the filter / adsorption inspection element with a connection for the drainage channel or drainage channel string offers the advantage according to the invention that, on the one hand, there is a tight connection between the drainage channel and the filter / adsorption inspection element, which, however, can be detached according to the invention in order to ensure, for example, improved access to both the drainage channel and the filter / adsorption inspection element for maintenance purposes, and also to replace the drainage channel or the filter / adsorption inspection element as desired or to combine it differently, for example with a different drainage channel or a smaller or larger filter / adsorption inspection element, in order to adapt the drainage and cleaning system according to the invention to the respective needs.

[0013] As mentioned above, the connection between the drainage channel and the filter / adsorption inspection element is preferably designed to be tight, i.e., fluid-tight or watertight. Within the scope of this invention, this means that the drainage channel or drainage channel section may be open at the top, but must be sealed laterally and downwards so that the draining water flows completely from the drainage channel into the filter / adsorption inspection element, thus preventing leakage according to the invention.

[0014] According to a further embodiment of the invention, at least two of the at least three cleaning chambers each have at least one filter element, in particular at least one pre-filter / adsorption element or at least one fine filter / adsorption element.

[0015] Using these filter / adsorption elements, the outflowing water can be advantageously cleaned according to the invention of both coarse contaminants, such as CIS contaminants, and fine particles and dissolved active ingredients, so that the water which has finally passed through the filter / adsorption revision element is clean water, or rather pure water.

[0016] Additionally, and optionally in combination with the filter / adsorption elements, the filter / adsorption revision element according to the invention can also have settling or sedimentation chambers in which particles with a higher density than water can be separated and collected, or which serve to settle sludge, i.e., are used as a sludge room.

[0017] These settling or sedimentation chambers each represent a cleaning chamber or a part, in particular a lower part, of a cleaning chamber.

[0018] According to a preferred embodiment of the invention, the respective filter elements can be reversibly inserted into a respective cleaning chamber, wherein, according to a further preferred embodiment of the invention, the respective cleaning chamber into which a filter / adsorption element is to be inserted has a receiving space for the filter / adsorption element. According to the invention, this receiving space for the filter element is fluid-permeable, in particular permeable to water, so that the respective receiving space, and thus also the filter / adsorption element, can be permeated by flowing water. For this purpose, i.e.,For the purpose of receiving a filter / adsorption element, the respective receiving space can, for example, be designed in the form of a receiving frame, which is preferably designed to fit precisely the respective filter / adsorption element to be used, so that, depending on the requirements, possible incorrect operation, for example by incorrectly inserting the filter / adsorption element, can be reliably avoided.

[0019] For cleaning the filter / adsorption inspection element according to the invention, or for its maintenance and / or for replacing filter / adsorption elements, the filter / adsorption inspection element has at least one removable cover element, which is preferably designed as a separately removable cover element for each cleaning chamber. Depending on the size of the filter / adsorption inspection element and practicality, two or more cleaning chambers can also be covered with common cover elements or with only one cover element, according to the invention.The respective cover elements can be easily lifted off the filter / adsorption revision element, whereby the cover elements can either be completely removed from the filter / adsorption revision element or can be hinged, for example, and thus remain permanently and securely connected to the filter / adsorption revision element, even when the filter / adsorption revision element is accessible from above and therefore open.

[0020] Similarly, the drainage channel can also have a grate and / or a grate cover, wherein the grate and / or the grate cover is designed to be completely removable from the drainage channel or drainage channel string, analogous to the filter / adsorption inspection element, or to be hinged open and closed.

[0021] According to a further preferred embodiment of the invention, adjacent cleaning chambers of at least three are fluidically connected at least via an overflow, wherein the respective overflow is designed as a partition between the adjacent cleaning chambers, which extends to a height in the range of 50% - 90%, preferably 60% - 85% and particularly preferably 70% - 80%, of the housing.

[0022] In this way, it is possible according to the invention to adjust the filter / adsorption inspection element to a desired flow capacity, i.e. to determine from which fill level of the filter / adsorption inspection element an overflow of runoff water occurs, so that even in heavy rain events there is no backflow at the filter / adsorption inspection element and an associated risk of runoff water flowing around the drainage and cleaning system according to the invention and thus potentially flooding of sidewalks or streets or other areas.

[0023] According to a further advantageous embodiment of the invention, each partition wall can also be designed to be height-adjustable, whereby the height adjustment can be provided manually or with motor power and optionally also remotely via radio or cable.

[0024] According to the invention, the pre-filter / adsorption element is arranged in a first cleaning chamber, which is positioned substantially downstream of the water inlet along the flow direction of the water flowing into the inlet. Within the scope of this invention, the terms first cleaning chamber, second cleaning chamber, third cleaning chamber, etc., refer to the arrangement of the respective cleaning chambers side by side in the direction of the outflowing water. It should be noted that the respective cleaning chambers need not necessarily be designed as separate chambers, but can also be functionally subdivided into different cleaning sectors, such as for settling or filtration / adsorption, by means of separate filter / adsorption inserts. However, within the scope of this invention, these are uniformly referred to as cleaning chamber(s) for the sake of simplicity.

[0025] According to the invention, the pre-filter / adsorption element is arranged in an upper area of ​​the first cleaning chamber, which is essentially opposite the water inlet opening.

[0026] The pre-filter / adsorption element preferably has a substantially triangular, in particular right-angled, shape in cross-sectional view when inserted into the cleaning chamber, with one apex of the triangle pointing towards the bottom of the housing, so that the clear width of the cleaning chamber extending in the direction of flow increases towards the bottom of the housing.

[0027] The pre-filter / adsorption element is arranged in the first cleaning chamber such that, if the pre-filter / adsorption element is shaped like a right-angled triangle in cross-section, the adjacent and opposite sides are oriented horizontally and vertically, respectively, within the cleaning chamber, while the hypotenuse extends towards the bottom of the cleaning chamber, with the pre-filter / adsorption element tapering downwards in cross-section. The water flowing into the filter / adsorption inspection element thus approaches the pre-filter / adsorption element at an angle, i.e., not at a right angle, so that any solids and sludge are carried directly downwards by the sloping surface of the pre-filter / adsorption element.The heavier components of the outflowing water are deflected towards the bottom of the first cleaning chamber, where they can then settle, while smaller and lighter components in the outflowing water are carried through the pre-filter / adsorption element and via the first overflow, which is located between the first and second cleaning chambers, into the second cleaning chamber downstream of it (in the direction of flow). Furthermore, the pre-filter / adsorption element preferably does not extend to the bottom of the housing, but ends at approximately one-quarter to one-third of the height of the cleaning chamber, so that the sludge trap at the bottom of the cleaning chamber has the largest possible volume available as a collection space.

[0028] This second cleaning chamber essentially serves as a settling chamber, or sedimentation chamber, in which heavier components of the outflowing water can settle for further cleaning.

[0029] Following the second cleaning chamber in the direction of flow, a third cleaning chamber is located, which in turn has a filter / adsorption element, namely a fine filter element.

[0030] It should be noted at this point that, depending on the embodiment, the second and third cleaning chambers can also be combined into a single cleaning chamber, with the fine filter element being arranged downstream of the sedimentation chamber in the direction of flow of the outgoing water.

[0031] The outflowing water is thus successively cleaned of suspended solids, heavier components and other filterable and / or adsorbable contaminants by first flowing from the drainage channel through the first cleaning chamber with the pre-filter element and a sludge trap, then being further separated from specifically heavier components in a settling or sedimentation chamber and subsequently flowing through a fine filter element, behind which, viewed in the direction of flow, the cleaned outflowing water can be directed to infiltration.

[0032] According to the invention, the last cleaning chamber, viewed in the direction of flow, has the fine filter element.

[0033] According to a further advantageous embodiment of the invention, the housing has a clean water collection chamber between the last cleaning chamber seen in the flow direction and a rear wall of the housing, preferably having the water outlet openings.

[0034] In this clean water collection chamber, the purified outflowing water can collect and, depending on the water level, is directed to a seepage system via a lower, or lowest, water outlet. At a higher water level, the purified water can drain away through a higher water outlet, namely an emergency overflow, which is also located in the rear housing wall of the filter / adsorption inspection element according to the invention. At an even higher water level, a further water outlet is provided at the uppermost end of the rear housing wall of the filter / adsorption inspection element according to the invention. It should be noted here that each outlet does not necessarily have to be a single opening, but can also be formed from several interacting openings.Furthermore, it should also be noted that the rear housing wall of the filter / adsorption inspection element according to the invention can also have a plurality of water drainage openings arranged one above the other, which can be used to drain the outflowing water depending on the water level.

[0035] The at least three water drainage openings thus extend at different heights and preferably on the side of the housing opposite the water inlet opening, wherein a first water drainage opening is adjacent to the bottom of the housing, a second water drainage opening is substantially at approximately the level of the overflow, and a third water drainage opening is substantially above an upper or top edge of the filter / adsorption elements.

[0036] In this regard, it should also be noted that the filter / adsorption elements, preferably identical, extend to a height in the range of 80% - 98%, preferably 85% - 95% and particularly preferably 90% - 95% of the housing.

[0037] Because the individual filter elements do not extend into or adjacent to the lid or lid elements of the filter / adsorption inspection element, the drainage and cleaning system according to the invention, or the filter / adsorption inspection element, can also be used during heavy rainfall events in which not all of the runoff water can be directed through the individual cleaning chambers of the filter / adsorption inspection element. This is because, in such a case, water can flow through the filter / adsorption inspection element above the filter elements, similar to a bypass. An emergency overflow is provided according to the invention for this purpose in the event of an overload of the filter / adsorption unit.

[0038] For easy maintenance and cleaning, the filter / adsorption inspection element has, as required, at least one removable cover element. Particularly after heavy rainfall or in the case of heavily contaminated runoff water, the filter / adsorption inspection element according to the invention can be easily cleaned, and the individual filter elements can also be easily replaced if necessary.

[0039] According to an important aspect of the invention, the filter / adsorption revision element enables in particular the physical functions of sedimentation, filtration and adsorption.

[0040] An important aspect of the invention lies in the fact that the filter / adsorption inspection element enables a cleaning step in the form of sedimentation by slowing down the flow velocity of the outgoing water. This sedimentation step essentially takes place upstream of a specific filter section of the filter / adsorption inspection element. According to the invention, the filter section itself is essentially formed by the filter body, which, in a preferred embodiment, is itself replaceable. Furthermore, within the filter body, as a further cleaning step according to the invention, adsorption of any impurities, particularly dissolved ones, from the outgoing water takes place. These impurities can adhere to the surface of the filter body, or more specifically, to its inner surface.This triple multifunctionality of the filter / adsorption revision element according to the invention, in addition to its respective arrangement, represents an important aspect of the invention.

[0041] Furthermore, the problem according to the invention is also solved by a filter / adsorption inspection element for a drainage and cleaning system according to the above descriptions.

[0042] Furthermore, the problem according to the invention is also solved by the use of a filter / adsorption inspection element for a previously described drainage and purification system. In summary, the subject matter of the invention can thus be described as follows. The drainage and purification system according to the invention comprises an inspection element that is connected to a channel with filter and adsorption functions. The inspection element, which is designed as a filter / adsorption inspection element, has a total of three discharge paths, namely a normal flow path in which purified outflowing water is directed to infiltration. In the event of an overload of the infiltration system, a further discharge opening is provided above a water outlet opening intended for infiltration as a first emergency overflow. In the event of a further overload, i.e.,In case of overload of the filter / adsorption unit, a second emergency overflow, also in the form of a water drain opening, is provided, which is located at the upper rear end of the filter / adsorption inspection element.

[0043] During operation, the outflowing water flows laterally into the inspection element, entering a first cleaning chamber with a sludge trap and pre-filter element. Here, the sedimentation process primarily takes place, optimized by the angled position of the pre-filter. The pre-filter prevents coarse debris from reaching the fine filter. After passing through the pre-filter, the water flows through a second sludge chamber for fine particles and into the fine filter. The fine filter primarily serves to absorb and further filter the water. The water is then clean.

[0044] By opening the grate cover or the lid elements, maintenance can be easily carried out by vacuuming out the sludge and removing saturated filter material.

[0045] Due to the design of the drainage and purification system according to the invention and the sedimentation, filtration, and adsorption functions it enables, it is possible not only to filter the water (i.e., geometrically block solids) but also to purify liquids of micro-pollutants through adsorption. The sedimentation function avoids the aforementioned disadvantages. Furthermore, the drainage and purification system according to the invention is both cost-effective to manufacture and offers improved maintenance and servicing compared to previous systems. Further embodiments of the invention are described in the dependent claims.

[0046] The invention is described below with reference to exemplary embodiments, which are explained in more detail with reference to the figures. These show:

[0047] Fig. 1 shows a schematic representation of an embodiment of the drainage and cleaning system according to the invention;

[0048] Fig. 2 shows a schematic representation of the drainage and cleaning system according to the invention as shown in Fig. 1 in a frontal view;

[0049] Fig. 3 shows a schematic representation of the drainage and cleaning system according to the invention as shown in Fig. 1 in a rear view;

[0050] Fig. 4 shows a schematic representation of an embodiment of a filter inspection element according to the invention with three cleaning chambers and a clean water collection chamber in a perspective transparent view;

[0051] Fig. 5 shows a schematic representation of the drainage and cleaning system according to the invention with a filter inspection element according to Fig. 4;

[0052] Fig. 6 shows a schematic representation of a further embodiment of a drainage and cleaning system according to the invention, comprising a filter inspection element with two cleaning chambers; and

[0053] Fig. 7 shows a schematic representation of the different flow paths of outflowing water through the drainage and cleaning system according to the invention as shown in Fig. 6.

[0054] In the following description, the same reference numbers are used for identical and equivalent parts.

[0055] Fig. 1 shows a schematic representation of an embodiment of the drainage and cleaning system 10 according to the invention. The drainage and cleaning system 10 consists of a filter / adsorption inspection element 20 to which a drainage channel 30 is tightly connected. The filter / adsorption inspection element 20 has a housing 40 which has a water inlet opening 50 adjacent to the drainage channel 30, through which outflowing water can flow into a first cleaning chamber 70a in which a pre-filter element 90a is arranged. The pre-filter element 90a is arranged in a mounting frame and has a triangular cross-section, which is formed at right angles, with the hypotenuse, or the sloping surface of the pre-filter element 90a, approaching the bottom of the housing 40 and the rear wall of the first cleaning chamber 70a, thus offering the inflowing water an inclined surface for attack.Adjacent to the first cleaning chamber 70a is a second cleaning chamber 70b, the section of which facing the first cleaning chamber serves as a sludge chamber where sludge can settle. The first cleaning chamber 70a is separated from the second cleaning chamber 70b by an overflow 100, through which pre-cleaned water, having passed through the pre-filter element 90a, can flow into the second cleaning chamber. Within the second cleaning chamber, adjacent to the sludge chamber, is a fine filter / adsorption element 90b, which in turn delimits the sludge chamber in the direction of flow. Adjacent to the fine filter / adsorption element 90b, within the second cleaning chamber 70b, is a clean water collection chamber 110, which in the direction of flow is delimited on one side by the fine filter / adsorption element 90b and on the other side by the rear wall of the housing 40 of the filter / adsorption inspection element 20.The rear wall of the housing 40 has two water drainage openings 60a and 60b, with the lower drainage opening 60a being adjacent to the base of the housing of the filter / adsorption inspection element 20 and the upper drainage opening 60b being located at the level of the overflow 100. The lower drainage opening 60a serves to direct purified water to a seepage system, while the upper drainage opening 60b serves as an emergency overflow.

[0056] Fig. 2 shows a schematic representation of the drainage and cleaning system 10 according to Fig. 1 in frontal view from the perspective of the drainage channel 30.

[0057] Fig. 3 shows a schematic representation of the drainage and cleaning system 10 according to the invention as shown in Fig. 1 in a rear view from the perspective of the water drainage openings 60a and 60b.

[0058] Fig. 4 shows a schematic representation of an embodiment of a filter / adsorption inspection element 20 according to the invention, with three cleaning chambers 70a, 70b and 70c and a clean water collection chamber, in a perspective transparent view. According to Fig. 4, the drainage and cleaning system 10 according to the invention is shown without a drainage channel 30. At the point where the drainage channel 30 can be attached to the housing 40, or rather to the water inlet opening 50 of the housing 40 of the filter / adsorption inspection element 20, a connection 80 is provided for a positive-locking and downwardly and laterally sealed connection of the drainage channel 30 to the housing 40 of the filter / adsorption inspection element 20. In this way, the drainage channel 30 can be easily attached to and removed from the housing 40 of the filter / adsorption inspection element 20.

[0059] Fig. 5 shows a schematic representation of the drainage and cleaning system 10 according to the invention with a filter / adsorption inspection element 20 according to Fig. 4, wherein the filter / adsorption inspection element 20 has a total of three cover elements 120 for cleaning and maintenance purposes, which can be individually lifted off the filter / adsorption inspection element 20.

[0060] Fig. 6 shows a schematic representation of a further embodiment of a drainage and cleaning system 10 according to the invention with a filter, inspection / adsorption element 20 with two cleaning chambers 70a and 70b, which are also provided with removable or openable cover elements 120.

[0061] Fig. 7 shows a schematic representation of the different flow paths of outflowing water through the drainage and cleaning system 10 according to Fig. 6. Fig. 7 schematically illustrates how outflowing water flows from the drainage channel 30 into the filter / adsorption inspection element 20 along a flow direction 140. The thick arrow shown in the flow direction 140 indicates how, at relatively low water levels, the outflowing water flows from the drainage channel 30 through the water inlet opening 50 against the inclined surface of the pre-filter element 90a in the first cleaning chamber 70a and from there via the overflow 100 into the second cleaning chamber 70b.Following the second cleaning chamber, which serves as a sludge chamber for fine particles, the outflowing water continues through the fine filter element 90b into the clean water collection chamber 110, which is formed between the rear wall of the housing 40 and the rear part of the fine filter element 90b. The water is then directed to a seepage system via the water outlet opening 60a. In this context, it should be noted that the drainage and cleaning system 10 according to the invention is arranged adjacent to a drainage channel for its intended operation and is therefore, at least with its sections located below the drainage channel, laid underground.

[0062] In the event of an overload of the infiltration system, i.e. during heavy rainfall events, the outflowing water within the clean water collection chamber 110 is dammed up to such an extent that it is discharged through the water outlet opening 60b, which is located essentially at the level of the overflow 100 (thin arrow extending from the two thick arrows).

[0063] In the event of even larger volumes of water flowing out or an overload of the filter units 90a and 90b, i.e., the pre-filter element 90a and the fine filter element 90b, the water flows out above these filter elements 90a and 90b through an emergency drain. For this purpose, a third water drain opening 60c can be provided at the upper end of the rear wall of the housing 40; alternatively, this excess water can also be discharged through the water drain opening 60b.

[0064] It should be noted here that all the parts described above, considered individually and in any combination, especially the details shown in the drawings, are claimed to be essential to the invention. Modifications to this are familiar to those skilled in the art.

[0065] Reference symbol list

[0066] 10 Drainage and cleaning system

[0067] 20 filters / adsorption revision element

[0068] 30 drainage channel

[0069] 40 cases

[0070] 50 Water inlet opening

[0071] 60a Water drain opening

[0072] 60b Water drain opening

[0073] 60c Water drain opening

[0074] 70a Cleaning chamber b Cleaning chamber c Cleaning chamber connection a Pre-filter element b Fine filter element 0 Overflow 0 Clean water collection chamber 0 Cover element 0 Grate cover 0 Flow direction 0 Receiving chamber

Claims

Claims 1. Drainage and cleaning system (10), which is characterized by the fact that the drainage and cleaning system (10) comprises a filter / adsorption inspection element (20) and a drainage channel (30) or drainage channel string connected to the filter / adsorption inspection element (20), in particular reversibly, in particular for the drainage and cleaning of surface water, wherein the filter / adsorption inspection element (20) comprises a housing (40) with at least one water inlet opening (50) for connecting the drainage channel (30) and at least two, preferably at least three, water outlet openings (60a, 60b, 60c) for different water outlet volumes as well as at least two, preferably at least three, cleaning chambers (70a, 70b, 70c) for different cleaning stages.

2. Drainage and cleaning system according to claim 1, characterized in that the water inlet opening (50) is arranged in an upper lateral section of the housing (40) and comprises a connection (80) for a detachable, preferably positive-locking, and in particular tight connection of the drainage channel (30) or the drainage channel string with the filter / adsorption inspection element (20).

3. Drainage and cleaning system according to one of the preceding claims, characterized in that at least two of the at least three cleaning chambers (70a, 70b, 70c) each have at least one filter / adsorption element, in particular pre-filter / adsorption element (90a) or fine filter / adsorption element (90b).

4. Drainage and cleaning system according to claim 3, characterized in that the respective filter / adsorption element (90a, 90b) can be reversibly inserted into a respective cleaning chamber, wherein the respective cleaning chamber preferably has a fluid, in particular water-permeable, receiving space (150), for example in the form of a receiving frame, for a respective filter / adsorption element (90a, 90b).

5. Drainage and cleaning system according to one of the preceding claims, characterized in that each adjacent of the at least three cleaning chambers (70a, 70b, 70c) are fluidically connected at least via an overflow (100), wherein the respective overflow (100) is designed as a partition between the respective adjacent cleaning chambers, which extends to a height in the range of 50% - 90%, preferably 60% - 85% and particularly preferably 70% - 80%, of the housing (40).

6. Drainage and cleaning system according to any one of the preceding claims 3 to 5, characterized in that the pre-filter / adsorption element (90a) is arranged in a first cleaning chamber (70a) which is arranged along a flow direction (140) of water flowing into the water inlet (50) substantially directly downstream of the water inlet (50).

7. Drainage and cleaning system according to one of the preceding claims 3 or 6, characterized in that the pre-filter / adsorption element (90a) is arranged in an upper region of the first cleaning chamber (70a) which is substantially opposite the water inlet opening (50).

8. Drainage and cleaning system according to one of the preceding claims 3 or 7, characterized in that the pre-filter / adsorption element (90a) in the state inserted into the cleaning chamber has a substantially triangular, in particular right-angled, shape in cross-sectional view, with one apex of the triangle pointing towards the bottom of the housing (40), so that a clear width of the cleaning chamber extending in the direction of flow (140) increases towards the bottom of the housing.

9. Drainage and cleaning system according to one of the preceding claims 3 or 8, in the direction of flow (140) a second cleaning chamber (70b) is arranged adjacent to the first cleaning chamber (70a).

10. Drainage and cleaning system according to one of the preceding claims 3 or 9, in the direction of flow (140) a third cleaning chamber (70c) is arranged adjacent to the second cleaning chamber (70b).

11. Drainage and cleaning system according to one of the preceding claims 3 or 10, the last cleaning chamber seen in the direction of flow (140) having the fine filter / adsorption element (90b).

12. Drainage and cleaning system according to one of the preceding claims 3 or 11, the housing (40) having a clean water collection chamber (110) between the last cleaning chamber seen in the direction of flow (140) and a rear wall of the housing (40) having preferably the water outlet openings (60a, 60b, 60c).

13. Drainage and cleaning system according to one of the preceding claims 3 or 12, characterized in that the filter / adsorption elements (90a, 90b), preferably identical, extend to a height in the range of 80% - 98%, preferably 85% - 95% and particularly preferably 90% - 95%, of the housing (40).

14. Drainage and cleaning system according to any one of the preceding claims 3 to 13, characterized in that the at least three water drain openings (60a, 60b, 60c) extend at different heights and preferably on the side of the housing (40) opposite the water inlet opening, wherein a first water drain opening (60a) is adjacent to the bottom of the housing (40), a second water drain opening (60b) is substantially at about the level of the overflow (100), and a third water drain opening (60c) is located in the are located essentially above an upper or top edge of the filter elements (90a, 90b).

15. Drainage and cleaning system according to one of the preceding claims, characterized in that the filter / adsorption inspection element (20) has at least one removable cover element (120), preferably a separate removable cover element for each cleaning chamber (70a, 70b, 70c) and the drainage channel (30) has a grate and / or a grate cover (130).

16. Drainage and purification system according to one of the preceding claims, characterized by the fact that the filter / adsorption revision element (20) enables the physical functions of sedimentation, filtration and adsorption.

17. Filter / adsorption revision element (20) for a dewatering and cleaning system (10) according to one of the preceding claims.

18. Use of a filter / adsorption revision element (20) according to claim 17 for a dewatering and cleaning system (10) according to any of the preceding claims.

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