JPH0339726B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a circulating purification device for purifying water in rivers and ponds built in gardens and the like.

[Prior Art] Conventionally, a purification device is generally known as a means for purifying the water of a pond built in a garden or garden of a general household.

For example, the purification device has a pond 10 as shown in FIG.
1 water is sent once to settling tank 103.
After large particles are precipitated in step 03, the supernatant is sent into a filter tank 105 containing a filter material to be filtered, and the filtrated water is sent back to the pond 101 by the pump device 107, and the cycle is repeated. Efforts are being made to purify the water in Pond 101.

[Problems to be Solved by the Invention] As described above, the conventional purification device has a settling tank 10.
3 and the filtration tank 105, an installation space is required to secure the sedimentation tank 103 and the filtration tank 105. For this reason, there is a possibility that the purification device cannot be installed in places where the site area is limited.

In addition, a pond 101, a sedimentation tank 103, a filtration tank 105
It is not desirable from the viewpoint of maintenance and management because the construction is required at three locations, which makes the construction work troublesome, and also because the three locations have to be managed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a circulating purification device that does not require installation space for a sedimentation tank and a filtration tank, is easy to construct, and is favorable in terms of maintenance and management.

[Means for Solving the Problem] In order to achieve the above object, in the present invention, a collecting waterway partitioned off by a partition wall is formed on one side of a pond in which a predetermined amount of water is stored. , A plurality of water suction pipes each having a spiral ridge formed therein and having a large number of water suction holes penetrating between the ridges and the valleys of the ridges are connected to this collecting channel in a row, and the water suction pipe is connected to a filter made of sand, gravel, etc. While being covered with a superlayer, the collecting waterway is provided with a pump device that sends filtered water sent into the collecting waterway back to above the filtering layer.

[Function] In such a circulating purification device, the filtered water that has passed through the filtration layer is taken into the water suction pipe through the water suction hole, and then sent into the collecting waterway. The filtrate water in the collecting waterway is sent back to the upper part of the filtration layer by the pump device to repeat the circulation. During this circulation, dirt, sludge, etc. are removed from the pond water as it passes through the filtration layer, so the pond water is always kept in a clean state. Moreover, management can be done in one place.

On the other hand, the purification device can be constructed by simply connecting a water suction pipe to a collecting waterway provided on one side of the pond and then providing a filtration layer thereon. Furthermore, even if the pond is relatively large, a water suction pipe with a length corresponding to the size of the pond may be used. Furthermore, it is not necessary to secure installation space for a settling tank or a filtration tank.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 6.

In the figure, reference numeral 1 indicates a pond built in a garden or garden of a general household, and on one side of the pond 1, a collecting waterway 5 partitioned off by a partition wall 3 is provided.

At the bottom of the pond 1 except for the collecting waterway 5, a plurality of water suction pipes 7 are installed, one end of which connects and communicates with the collecting waterway 5.

The water suction pipe 7 is flexible and is disposed in a state buried in the filtration layer 9, and is, for example, a commercially available underdrain pipe such as TOYODREN (trade name). A spiral protrusion 10 is provided on the circumferential surface of the water suction pipe 7, and a large number of water absorption holes 11 are provided in the valleys of the protrusion 10 and the protrusion 10. As a result, the fourth
As shown in the figure, the shape is such that a water channel that is unlikely to be clogged is ensured, and water is absorbed into the internal space 13 through the water absorption hole 11. Further, the periphery of one of the water suction pipes 7 fitted into the partition wall 3 is sealed with a sealing material, and the other side is closed off with a blind lid 14.

The filtration layer 9 is made of filtration materials such as pebbles 15 and sand 16, which have a large surface area and are easy for bacteria to adhere to.
The thickness is set so that the water suction pipe 7 is hidden. Note that it is also possible to cover the upper surface of the filter layer 9 with gravel or the like.

Although it is sufficient for the filtration layer 9 to have the function of purifying water, for example, ingredients or activated carbon may be mixed in the filtration material at a predetermined ratio to change the pH value of the water quality or remove unpleasant odors. It is also possible to

On the other hand, a pump device 17 is provided above the collecting waterway 5, and a discharge port 19 of the pump device 17 faces above the filtration layer 9. The pump device 17 has a water supply capacity to circulate the water in the pond 1 about twice a day, and the water supply capacity is set depending on the size of the pond 1.

The upper part of the collecting waterway 5 may be left open, but if a board is installed as shown in the figure and covered with strange stones, plants, etc., the overall appearance of the pond can be improved.

In the purification device configured in this way, the pond 1
The water passes through the filtration layer 9 and enters the water suction hole 11 of the water suction pipe 7.
After being introduced into the internal space 13 through the diaphragm 3, it flows into the collecting waterway 5 partitioned by the partition wall 3.
The filtered water in the collecting waterway 5 is repeatedly circulated back to the upper part of the filtration layer 9 by the pump device 17. During this circulation, the water absorption holes 11 provided in the valleys of the protrusions 10 and the protrusions 10 are taken in without clogging, and the water in the pond 1 is passed through the filtration layer 9.
As it passes through, garbage, sludge, etc. are removed. In addition, uneaten food and fish excrement are decomposed by bacteria (aerobic bacteria) on the surface of the filter layer 9, so that the water in the pond 1 is always maintained in a clean state. Moreover,
Maintenance and management will also be done in one place.

On the other hand, when constructing the purification device, the water suction pipe 7 is cut to a predetermined size to obtain a length corresponding to the size of the pond 1, and the water suction pipe 7 and the filtration layer 9 are placed at the bottom of the pond 1 The construction work is easy because it is only necessary to install the Furthermore, it is not necessary to secure a space for setting a settling tank or a filtration tank.

FIG. 5 shows another embodiment of the circulating purification device.

The purification device of this embodiment includes a water suction pipe 7 and a filtration layer 9.
It is the same as the previous embodiment in that it consists of a collecting waterway 5 partitioned by a partition wall 3 and a pump device 17, but it is provided at the bottom part which is formed into a step-like shape and is formed like a river.

That is, a plurality of blocks 2 are arranged in a stair-like manner with a predetermined width.
1, 21, and 21 are dug and the surrounding area is sealed with concrete 23 so that water flows down from the weir 25a of the channel wall 25 of the upper collecting channel 5 to the starting end of the next block 21, and then the lower collecting channel 5 the pipe 27
is connected to the pump device 17 via the pump device 1.
7, the data is sent back to the top block 21.

Therefore, in addition to the effects of the previous embodiment, the purifying device of this embodiment can also be used in areas where water flows, such as a river.

Although not shown in the drawings, the present purification device can also be applied to a fountain pond.

[Effects of the Invention] As explained above, according to the purification device of the present invention, it is possible to take in filtrated water without causing clogging, and it is also possible to incorporate a filtration layer and a plurality of water suction pipes at the bottom of the pond. Construction is easy because all you have to do is line them up. Moreover, by adjusting the length of the water suction pipe, construction can be done to suit the size of the pond, etc. In addition, maintenance is facilitated because it only needs to be managed in one place, and there is no need for installation space for settling tanks and filtration tanks, so the site can be used effectively.

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view taken along the line - - of Fig. 2 showing the state in which the purification device of the present invention is implemented in a pond, Fig. 2 is a schematic plan view of the entire pond, and Fig. 3 is a cutaway with a portion of the water suction pipe omitted. 4 is an enlarged cross-sectional view of the water absorption hole, FIG. 5 is a cutaway schematic side view of the purification device installed in an artificial river, FIG. 6 is a cross-sectional view taken along the - line in FIG. 5, and FIG. 2 is a schematic plan view similar to FIG. 2 showing the conventional example. Explanation of main drawing symbols: 1... Pond, 3... Partition wall, 5... Collection channel, 7... Water suction pipe, 9... Filtration layer, 13... Internal space, 17... Pump device.

Claims (1)

[Claims] 1 A collection channel is formed on one side of a pond in which a predetermined amount of water is stored, partitioned by a partition wall, and a spiral ridge is formed in this collection channel, penetrating between the valleys between the ridges. A plurality of water suction pipes each having a large number of water suction holes are lined up and connected, and the water suction pipes are covered with a filtration layer made of sand, gravel, etc. A circulating purification device characterized by being equipped with a pump device that sends back water to the upper part of the superlayer.