TRICKLING FILTER SYSTEM

Abstract

A trickling filter system comprises at least three filler material containers arranged one next to the other such that one of the at least three filler material containers is in a middle position. Each of the at least three filler material containers comprises, a top defining an opening, a bottom comprising a water-permeable support structure, and a space between the top and the bottom comprising a filler material. A rotary sprinkler container configured to at least partially receive a rotary sprinkler and is positioned on top of the one of the at least three filler material containers in the middle position. The rotary sprinkler container is configured to enable rotation of the rotary sprinkler to sweep over at least a portion of the at least three filler material containers.

Claims

1-11. (canceled)

12. A trickling filter system comprising; at least three filler material containers arranged one next to the other such that one of the at least three filler material containers is in a middle position, wherein each of the at least three filler material containers comprises, a top defining an opening, a bottom comprising a water-permeable support structure, and a space between the top and the bottom comprising a filler material; a rotary sprinkler; and a rotary sprinkler container configured to at least partially receive the rotary sprinkler and positioned on top of the one of the at least three filler material containers in the middle position, wherein the rotary sprinkler container is configured to enable rotation of the rotary sprinkler to sweep over at least a portion of the at least three filler material containers.

13. The trickling filter system according to claim 12, wherein the at least three filler material containers and the rotary sprinkler container comprise same dimensions.

14. The trickling filter system according to claim 12, wherein a horizontal cross-section of the at least three filler material containers and the rotary sprinkler container comprises a rectangular shape.

15. The trickling filter system according to claim 12, wherein the at least three filler material containers and the rotary sprinkler container comprise dimensions of conventional standardized ISO large-capacity tanks.

16. The trickling filter system according to claim 12, further comprising additional filler material containers arranged on top of the at least three filling material containers.

17. The trickling filter system according to claim 12, further comprising at least five filler material containers arranged one next to another.

18. The trickling filter system according to claim 12, wherein the at least three filler material containers and the rotary sprinkler container comprise a base, and wherein the base defines an opening.

19. The trickling filter system according to claim 12, further comprising an inclined base configured to support the at least three filler material containers, wherein the inclined base comprises a drainage channel configured to convey treated wastewater.

20. The trickling filter system according to claim 12, wherein the rotary sprinkler further comprises a wastewater inlet, and wherein the wastewater inlet extends inside the rotary sprinkler container from one side wall along an axis of the rotary sprinkler.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The invention will be explained in detail below with reference to an exemplary embodiment in conjunction with the drawing. In the drawings:

[0021] FIG. 1 illustrates an elevational schematic view of an embodiment of a trickling filter system;

[0022] FIG. 2 illustrates the embodiment of FIG. 1 rotated by 90°;

[0023] FIG. 3 illustrates a schematic plan view of the embodiment of the trickling filter system from FIGS. 1 and 2;

[0024] FIG. 4 illustrates a schematic sectional view of an embodiment of a filler material container of the trickling filter system; and

[0025] FIG. 5 illustrates a schematic sectional view of an embodiment of a rotary sprinkler container of the trickling filter system.

DETAILED DESCRIPTION OF THE INVENTION

[0026] The exemplary embodiment of a trickling filter system 1 shown in the figures has a modular design and is comprised of a total of 11 containers, which are arranged one above the other and one on top of the other at the deployment site. The figures show the trickling filter system 1 in the operationally ready state.

[0027] The system 1 comprises ten filler material containers 2, which are arranged one above the other in two layers of five containers in each case. The lower layer of filler material containers 2 is resting on a plurality of blocks 5, which are arranged on a base trough 6. FIG. 2 shows that the base trough 6 is inclined, such that the wastewater passing through the filler material containers 2 flows to a lateral drainage channel, where it is drained via an outlet 7.

[0028] Furthermore, the trickling filter system 1 comprises a rotary sprinkler container 3, which is the same size as the filler material containers 2 and is arranged on the middle filler material container 2 of the upper layer. Said rotary sprinkler container 3 comprises a conventional rotary sprinkler of a trickling filter, said rotary sprinkler having a central drive and two opposing sprinkler arms 4. All parts of the rotary sprinkler are accommodated in the rotary sprinkler container 3, wherein the arms 4 of the rotary sprinkler extend in parallel with the longitudinal axis of the rotary sprinkler container 3 when being transported. The containers are ones which have the dimensions of a standardized 40′ container as well as a rectangular plan. The plan view in FIG. 3 shows that the trickling filter system 1 has a square plan in the assembled state. Reference sign 8 denotes the wastewater inlet, which leads to the center of the rotary sprinkler, from which point the wastewater is guided into the rotary sprinkler arms 15 and from there is dispensed onto the top of the filler material containers 2.

[0029] FIG. 4 is a schematic section through a filler material container 2. The container 2 comprises a removable base 12, above which a suitable support structure 11 for filler material 9 is arranged, wherein said support structure may be a suitable grid or rods or bars arranged in parallel, for example. Suitable filler material 9 is arranged in layers on the support structure 11, as shown in FIG. 4. The functioning of filler material 9 of this kind in a trickling filter is known and does not need to be explained in detail here. In addition, the container 2 has a removable cover 10.

[0030] The filler material container 2 may be filled with the filler material 9 at a suitable point and equipped there with the removable base 12 and the removable cover 10. It is then transported to the operating location and arranged accordingly, as shown in FIGS. 1 and 3, wherein the base 12 and cover 10 are removed.

[0031] FIG. 5 is a schematic section through a rotary sprinkler container 3. The container 3 comprises removable side walls 17 as well as a removable base 13 at least in the lower region. In this case, too, a suitable support structure is provided.

[0032] A rotary sprinkler 4 is accommodated in the container 3 and comprises two opposing sprinkler arms 15. A wastewater inlet pipe 14 extends from the short side of the container 3 to the center of the rotary sprinkler 4. From there, the wastewater supplied is distributed to the rotary sprinkler arms 15 and sprayed onto the tops of the filler material containers 2 arranged below when the rotary sprinkler is rotated. The drive of the rotary sprinkler 4 is denoted by 16.

[0033] The rotary sprinkler 4 may be provided with additional sprinkler arms at the operating location and, for example, comprise four sprinkler arms 15, as shown in FIG. 3. The need for additional arms is based on location-specific variables, such as volumetric flow rate, required spraying power, etc.

[0034] The trickling filter system 1 may be composed of multiple layers simply by stacking the containers 2, 3 one on top of the other. For example, a total filler material height of approx. 7.2 m may be achieved with three layers. For this purpose, 15 filler material containers 2 would be required, for example. By using ISO containers, which are designed for a load of approx. 27 t, no further measures are required for improving the statics during stacking.