JP3520355B2 - Water purification method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification method for purifying water without damaging a natural landscape when the water is circulated indoors or outdoors.

[0002]

2. Description of the Related Art In addition to various trees, water environments such as rivers, ponds, waterfalls and fountains are provided in gardens and the like provided at event venues and rooftops of buildings. In such a water environment, rainwater and tap water are used, and the water is circulated by a pump and used repeatedly, and is supplied to rivers, ponds, waterfalls, fountains, etc.Contaminated water needs filters and various equipment. I am trying to purify it with the mechanical purifier provided.

[0003]

Therefore, in the prior art,
Despite constructing a water environment that resembles a natural environment such as a river, pond, waterfall, fountain, etc., the purification device damages the landscape, and
Since water is purified by a mechanical purification device, there is a problem in that purification of water is expensive. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a water purification method that can purify water at low cost without damaging the natural landscape.

[0004]

In order to achieve the above object, a method for purifying water according to the present invention is to provide a reservoir, spread soil on a part of the bottom of the reservoir, plant a plant on the soil, A site where earth and sand are spread is an artificial wetland, the other part of the bottom of the reservoir is provided with a sand layer of a predetermined thickness below the water surface, and the upper part of the sand layer is left as a reservoir.
It is characterized in that the water is guided to an artificial wetland of the reservoir to pass through the earth and sand and the sand layer to purify the water.

Further, the present invention is characterized in that purified water is taken out from the lower part of the sand layer. Further, the present invention is characterized in that the sand layer is housed in a recess provided in a bottom portion of the reservoir.

[0006]

The polluted water is purified when it passes through the earth and sand of the artificial wetland of the reservoir and when it passes through the sand layer below the reservoir.

[0007]

EXAMPLE An example in which the water purification method according to the present invention is applied to a garden built at an event site will be described below. As shown in the plan view of FIG. 3, various pavilions 17 are provided at the event venue K, and a garden T is built on the site. The present invention is applied to the reservoir 1 forming a part of the garden T, and water is purified from the reservoir 1. As shown in the perspective view of FIG. 1 and the sectional view of FIG. 2, the reservoir 1 is formed with a volume capable of storing a predetermined amount of water, and a part of the bottom of the reservoir 1 is deeper than other bottoms. The formed concave portion 3 is provided, the sand layer 5 is laid with a predetermined thickness in the concave portion 3, and the water storage portion 7 for storing water is provided in the upper portion.

Sediment 10 is laid on a shallow bottom of the other part of the reservoir 1, and the portion of the sand 10 is grass or trees 9.
And other plants are planted to form wetlands 11
A water inlet 15 is provided at the edge of the. A water collecting portion 13 is provided below the center of the bottom surface 3A of the recess 3. The water collecting part 13 has, for example, an opening 1301 at the top.
Is provided between the bottom surface of the sand layer 5 and the opening 1301 of the case 1303 to prevent sand from entering the case 1303, and the water case 1
It is composed of a filter 1305 and the like capable of entering the inside of 303. Therefore, when the reservoir 1 is viewed from the outside, the sand layer 5 cannot be seen, only the wetland 11 and the reservoir 7 can be seen,
It will make up a natural landscape.

As shown in FIG. 3, in the garden T, in addition to such a reservoir 1, a large pond 19, a waterfall 21, a grove 23, a stream 25, etc. are provided. From the big pond 19, the grove 23 and the stream 25 are gradually formed. The terrain becomes lower and the reservoir 1
Is provided at a position lower than these. Oike 1
Multiple storage layers (campo) buried underground around 9
27 are provided, and these reservoirs 27 are provided in respective water channels 31
It is connected to the Oike 19 through. Further, each of the storage layers 27 is connected to a water collecting pipe 29 for collecting rainwater that has rained on the roof of the pavilion 17, and the rainwater flows into the large pond 19 from each of the storage layers 27 through each of the water channels 31. The reservoir layer 27 is also provided in the middle of the stream 25.

A waterfall 21 is provided at a part of the periphery of the large pond 19, and a stream 25 is provided downstream of the waterfall 21. The stream 25 is the event venue promenade 33
The bridge 35 is installed so as to meander inside, and bridges 35 are installed at various points along the way, and the downstream end is connected to the inflow port 15 of the reservoir 1. Further, a tributary 37 is branched to a downstream portion of the waterfall 21 of the stream 25, and the tributary 37 is connected to a spring 39 in the thicket 23, and the water flowing from the spring 39 flows into the stream 25 through the tributary 37. The spring 39
Is connected to the Oike 19 by a pipe and is connected to the Oike 19
It is installed at a lower position than the above, and water flows out from the spring 39 through the pipe from the large pond 19.

Further, as shown in FIG. 2, the water collecting portion 13 of the reservoir 1 and the large pond 19 are connected by a pipe 41, and a pump 43 is interposed in the middle of the pipe 41 for purification. The clean water collected and collected in the water collecting section 13 is returned to the large pond 19 through the pipe 41 and reused.

In such a garden T, when it rains, rainwater is directly stored in the large pond 19 and the reservoir 1, and the rainwater collected by the roof of each pavilion 17 is stored in the underground storage layer by the gutter and the water collecting pipe 29. The water is collected in 27 and flows into the Oike 19 through each water channel 31, and rainwater is stored in the Oike 19. The water stored in the Oike 19 flows into the stream 25 through the waterfall 21, and also flows out from the spring 39 into the stream 25 through a pipe buried underground, and the water flows into the stream 25. Rainwater also flows in from a reservoir layer 27 provided in the middle of the stream 25.

Further, the water in the stream 25 is stored in the reservoir 1
From the inflow port 15 of the reservoir 1 to the wetland 11 of the reservoir 1, the water passes through the earth and sand 10 of the wetland 11 and flows into the reservoir 7 above the sand layer 5 for storage, and the water stored in the reservoir 7 It passes through and reaches the water collecting portion 13 below the sand layer 5. Then, when the water passes through the earth and sand 10, the contaminants are first removed by the earth and sand 10, and when the water passes through the sand layer 5, the contaminants are removed by being adsorbed on the surface of the sand of the sand. As a result, the polluted water is surely purified, and clean water is collected in the water collecting section 13. The clean water collected in the water collecting section 13 is returned to the pond 19 by the pump 43 through the pipe 41 and reused.

According to the present embodiment, since water is purified by the reservoir 1 utilizing the natural scenery, the natural landscape is not damaged as compared with the case where a mechanical purifying device is installed as in the conventional case. It becomes possible to purify water.
Further, the contaminants are removed by the soil 10 of the wetland 11 and the sand layer 5 below the water storage unit 7, and the water is purified using natural substances, so that the cost for water purification can be significantly reduced. It will be possible.

Further, in the embodiment, by providing the Oike 19, the waterfall 21, the spring 39, the stream 25, etc., it is possible to provide the visitors of the venue with a space familiar with the water, and the promenade 33. Visitors can be guided to the next pavilion 17 along the flow of the small stream 25 provided.
In addition, because rainwater is stored and used, it is possible to build a sufficient natural environment by using only a small amount of clean water, and about 80% of the evaporation of water from the pond 19 and other locations is absorbed by rainwater. Since it can be covered, the cost can be further reduced.

In the above embodiments, the case of purifying water used in the garden was described as an example, but the present invention is of course applicable to parks, amusement parks, boat ponds, rooftop gardens of buildings, etc. It is possible.

[0017]

As described above, in the water purification method according to the present invention, a reservoir is provided, and a part of the bottom of the reservoir is laid with earth and sand, a plant is planted on the earth and the earth is laid. The site is an artificial wetland, and the other part of the bottom of the reservoir is provided with a sand layer with a predetermined thickness below the water surface, and the upper part of the sand layer is left as a reservoir to guide water to the artificial wetland of the reservoir. Then, the water is purified by passing the soil and sand layer. Therefore, there is no need to install mechanical purification equipment, and water can be purified without impairing the natural landscape and without cost, especially on the rooftops of gardens, parks, amusement parks, boat ponds, and buildings. Suitable for places using water such as gardens.

[Brief description of drawings]

FIG. 1 is a perspective view of a reservoir.

FIG. 2 is a sectional view of a reservoir.

FIG. 3 is a plan view of an event venue.

[Explanation of symbols]

1 reservoir 3 recess 5 sand layers 7 water storage 9 plants 10 earth and sand 11 wetlands 15 Inlet

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Claims (3)

(57) [Claims] 1. A reservoir is provided, earth and sand are laid on a part of the bottom of the reservoir, plants are planted on the earth and sand, and a site where the earth and sand are laid is an artificial wetland, and the other part of the bottom of the reservoir is provided. , A sand layer having a predetermined thickness below the water surface is left, and the upper part of the sand layer is left as a water storage part, water is guided to an artificial wetland of the reservoir, and water is purified by passing the earth and sand layers. The method for purifying water is characterized by the above. 2. The method for purifying water according to claim 1, wherein purified water is taken out from a lower portion of the sand layer. 3. The water purification method according to claim 1, wherein the sand layer is contained in a recess provided in a bottom portion of the reservoir.