PROCEDURE AND DEVICE FOR PULLING SAMPLES IN WASTE WATER TREATMENT UNITS

The invention concerns a procedure for pulling samples from a waste water treatment unit supplied waste water and/or out from this plant withdrawing, cleaned water, with which mau branches a portion of the supplied, waste water which can be cleaned and/or the cleaned water, supplies a sample collector and collects in this as mixed sample, whereby one catches the waste water and/or the cleaned water in a container, which can be cleaned, and by dumps empties the container, after in the container a given or preselectable quantity of waste water and/or cleaned water collected, and supplies the waste water and/or the cleaned water of the waste water treatment unit and/or the derivative. At waste water treatment units, whole equal which kind, in particular however with Bodenkörperfilterkammem, as she admits of the EP-A-192 for example from 631 is, it is necessary that the normal function and the efficiency of the waste water treatment unit are examined. Hiezu so far it is proceeded in such a way that by the approaching water and by from the cleaning equipment (for example the ground body filter chamber) diverting water search samples are pulled and then for a sufficient cleaning efficiency of the plant is examined. With this well-known function it is unfavorable that much on the coincidence depends, since into the waste water treatment unit for understandable reasons not always equal dirty waste water is supplied. Besides a comparison with that is not so easily possible straight supplied water and for the water taken off from the chamber, since it depends to a large extent on the coincidence whether the sample takes taking person the straight portion of cleaned waste water out of the expiration, which was supplied before by way of the intake of the waste water treatment unit. From W. Triebel “Lehrund manual of the sewage engineering” 1975, publishing house of Wilhelm Ernst & Sohn, Berlin, Munich, Duesseldorf is it admits (see section 3.2.4. Sample taking technology) that mixed samples can be drawn, so that a automatic calculation of average values is reached. Hiezu the suggested devices such as single solenoid valves, tubing switches or automatic Probenehmer need a current supply, in order to operate the necessary valves and the time stop clocks. From the CH-PS 664,355 a device is well-known for collecting and for periodic introducing of a measured quantity of waste water which can be cleaned in purification plants. This device possesses a dump, which is divided into two partial tubs. The dump is tiltable stored, in such a manner around an axle that the dump swivels, as soon as the obenliegende dump part contains sufficient waste water, in order to produce a predominance of the obenliegenden dump part opposite the down-lying. Any references to use this well-known dump for pulling mixed samples are not mentioned in the CH-PS 664,355. The invention is the basis the task to indicate a procedure and a device with which the problem from the world, specified above, is creative, and with which it is possible to draw a mixed sample. According to invention this is reached with a procedure of the kind initially specified by that mau a given or preselectable portion waste water and/or cleaned water, while this flows out of the container branches, supplies and that one the branched portion to the sample collector. With the function according to invention it is guaranteed that waste water, a preferably exactly defined fraction, is supplied to the Probensammelgefaß of each supplied VOL around unit, so that the sample collector contains a Misehprobe, which represents a representative cross section to the plant of supplied waste water. Sinngemäl3es is valid for the ground body filter chamber for those according to invention at the discharge of the plant, for example. Preferred it is proceeded in such a way that one seizes the number of the branched given or preselectable and the sample collector of supplied portions. With this variant of the procedure of the invention also the waste water quantity angefaUene in the time unit can be determined accurately. The invention concerns also a device for the execution of the according to invention of the procedure, with which under the inlet for waste water and/or the expiration for cleaned water one is arranged by a partition in two partial tubs subdivided tub, which is tiltably stored, whereby it tilts with reaching a certain quantity of water in one of its partial tubs, whereby into a partial tub leaks out a caught water the partial tub, whereby in the tilted situation of the tub those empties before, other partial tub under the inlet and/or the expiration is arranged. The device according to invention is characterized by the fact that from at least one partial tub a line proceeds to branches of a defined VOL around portion of the tub, and that to a sample collector leads the line. This execution form ensured easily and way that from the river from waste water or cleaned water, which is divided into given or, if the tilting range of the tub is changeable, preselectable VOL around portions, certain portions to be branched off and to the sample collector supplied. The device according to invention works completely automatically, without for their enterprise foreign energy, as for example electric current, is necessary. In an execution form a counting device, which seizes the number of the tilting procedures of the tub, is intended. Like that it is possible to determine the quantity of the waste water treatment unit for supplied waste water. With this execution form it is preferential that the counting device exhibits an operating finger, which cooperates with the top margin of the partition of the tub. The branches of portions of the water becomes particularly exact and reproducible, if in accordance with a proposal of the invention the line of the lateral longitudinal edge of the partial tub, leading to the Probensarnmelbehälter, goes out. This execution form is besides easy to manufacture, since it is sufficient to fasten the end of the line RK 394,353 B to the longitudinal edge of the partial tub. In order to improve the accuracy of the device according to invention, can be intended that the connection of the line exhibits a collecting basin, from which the line leading to the sample collector proceeds. In the collecting basin a portion of water, which can be branched off, is caught, which is larger as if is simply the delta of the line to the sample collector to the longitudinal edge of the Teilwaune fastened. Therefore the accuracy is increased. The accuracy can be still further increased, as in the line between collecting basin and sample collector, vomugsweise is intended in the range of the Auffanggef'äßes, a throttle point. Apart from an execution form with a sample collector for each partial tub is according to invention an execution form preferential, with which both partial tubs are assigned to the tub sample collector. In a practical implementation of the invention it can be intended that the waste water purification device is designed as ground body filter chamber, the before-clarified waste water over, the tiltably stored tub divided into partial tubs is supplied that likewise a tiltably stored tub divided into two partial tubs is assigned to the expiration of the ground body filter chamber and that, the cleaned water exhausted from the ground body filter chamber over the expiration is supplied to a Sickerschacht. With these Ausf'ührungsform can be pulled before and after the Bodenkörperf'dterkammer mixed samples. It is preferential with the fact for spatial reasons that those is arranged the expiration assigned, tiltably stored tub Sickerschacht connected at the outlet side in that the ground body filter chamber. A favorable and easily accessible arrangement of the Probensammelbehalters results in sees, if that is fastened in the Bodenkörperfilterkarnmer arranged cup at least sample collectors to and/or if that is fastened at least sample collectors to the inside of the wall of the housing of the ground body filter chamber or the Sickerschachtes. With advantage it is intended in the context of the invention that those is designed as flexible hose at least a line between the tiltable tub and that at least one sample collector. Thus the tilting motions of the tub are not obstructed by the lines. Details and characteristics of the invention devoted see from the following description partly of the remark examples shown in the designs schematically. It shows: Fig. 1 in the vertical cut a BodenkörperFdterkammer from the EP-A-192 631 well-known design, Fig. 2 schematically the tiltable tub seen from an end, Fig. 3 a Draufsieht on the tiltable tub, Fig. 4 and 5 in two different opinions the connections of the lines to the partial tubs of the tiltable tub, Fig, leading to the collectors. 6 a Ansführungsbeispiel of a Sickerschachtes, which the ground body filter chamber in accordance with Fig. 1 to be downstream can, on average, Fig. 7 another Ausführangsform of a Sickerschachtes in the Verfikalschnitt and Fig. 8 the Sickerschacht from Fig. 7 on in relation to average of Fig. 7 around 90° shifted Verükalschnitt. In Fig. 1 ground body filter chamber shown in the vertical longing CCIT (1) possesses for example from the EP-A-192 631 well-known structure, with a housing consisting of several concrete rings (2), in which one above the other-stacked cups (3) with grounds from porous concrete (6) are arranged. In each cup (3) are two layers (4 and 5) taken up, which form the ground body. The ground body filter chamber (1) waste water which can be cleaned becomes over an inlet (7) supplied and the cleaned water, after it a seep-laminated (9), which on a ground (10) of the housing (2) rests upon, flowed through, by an expiration (8) taken off. Over the highest cup (3) a tub (11) is arranged, which is tiltably stored around a horizontal, in the proximity of the ground (13) of the tub (11) running axle in camps (12). The camp carriers (14) of the camps (12) are on a carrier (15), which on the highest cup (3) touched down is fastened. Like in particular the Fig. 2 and 3 in more details shows, consists the tub (11) from an essentially even ground (16), one in the center of the ground (16) of this essentially perpendicularly which is away center wall (17) and of two Stimwänden (18 and 19), which are essentially dreieckförmig trained in the remark example shown. Therefore the tub (11) possesses two partial tubs (20). As by the arrow (21) in Fig. 2 suggested, is the tub (U) around the axle defined by the camps (12) tiltable. The swivelling range of the tub (11) becomes through in Fig. , those determines 2 schematically suggested attacks in Fig. 2 Ausführangsbeispiel shown as set screws (22) are trained. In Fig. 2 Sehwenkstellung shown (strichliert drawn in) of the tub (11) is of them in Fig. 2 right partial tub (20) under the inlet (7) into the ground body filter chamber (1) arranged. Inflowing, waste water which can be cleaned fills the partial tub (20) increasingly to the tub (11) the predominance gets and into its opposite Sehwenklage tilts, whereby in Fig. 2 of right partial tub (20) contained waste water on the highest cup (3) of the ground body filter chamber (1) flows. After tilting the tub (11) is their other partial tub (20) under the inlet (7) arranged. From each partial tub (20) of the tub (11) leads a line (23) to a sample collector (24) or to a common sample collector, which and/or at the exterior the cup (3) of the ground body filter chamber (1) or at the inside of the housing (2) the same to be fastened can. The lines (23) are preferably flexible hoses. Fig. 4 and 5 shows that the connecting pieces (25) of the lines (23) exhibit collecting basin (26), from RK 394,353 B those connecting piece (27) to-goes. Like that it is ensured that during each tilting procedure of the tub (11) an exactly def'mierte quantity of the waste water quantity contained in the respective partial tub (20) svrOmt by the line (23) to that or the Probensammelbehalter (24). The accuracy can be improved still thereby that into the connecting piece (27) or into the line (23) a throttle point (not shown) is built. The Auffanggef'äß (26) of the connecting piece (25) is so connected to the tub (11) with the respective lateral longitudinal edge (24) of the ground (16) that to its top margin with the top side of the ground (16) swore. As in the designs (Fig. 1 and 2) shown, a counting device (30) is assigned to the tiltable tub (11), whose counting finger (31) cooperates with the top margin of the center wall (17) of the tub (11), so that the number finger (31) of the counting device (30) is once operated with each tilting procedure. In this way is it possible, number that sample collector to seize (24) zugeführlzn, defined portions ground body filter chamber (1) supplied waste water and thereby also those altogether ground body filter chamber (1) supplied quantity to waste water, since not only the number of the tilting procedures, but also the quantity of waste water, which in each partial tub (20) are contained of the tub (11), before the tub (11) tilts, admit are. The expiration (8) from the Bodenktirperfilterkammer (1) leads into a Sickersehacht (6), that, as in Fig. 6 or as in the Fig. 7 and 8 shown, trained is. The Sickerschacht (35) consists a Sickerschicht (36) of a down open, in rising up housings (37). In the Sickerschacht (35) a tiltable tub (11) is in such a way arranged that it the delta of the expiration (8) is assigned. Although in Fig. 6 shown, is not the tiltable tub (11) lines (23) for supplying defined portions over the expiration (8) into the Sickerschacht (35) of flowing, cleaned water to sample collectors (24) or a sample collector (24) assigned. The Fig shows another execution form of a Sickerschachtes (40). 7 and 8, whereby it is also shown that the tub (11) is tiltably installed on a carrier (15), which is fastened to the walls of the housing (41) of the Sickerschachtes (40). The Fig. 7 and 8 shows the possibility of fastening the sample collectors (24) to the lnnenseite of the housing (41) of the Sickerschachtes (40).