JP2706921B2 - Water purification method that also combines slope greening - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying water which also serves as greening of a slope, and particularly to a method for purifying water in a reservoir, water blocked by a dam, or water stored in a reclaimed reservoir. To purify stagnant water.

[0002]

2. Description of the Related Art In recent years, rivers, lakes and marshes have been contaminated by industrial waste and domestic wastewater. However, water such as water blocked by reservoirs and dams or water stored in reclaimed ponds or other reservoirs has been developed. The stagnant water (hereinafter referred to as stagnant water) is less likely to be polluted and purified as much as the stagnant water compared to the water in the river or the like.

[0003]

In the above-mentioned reservoirs and the like, the quality of the fish and shellfish inhabiting the reservoirs is gradually decreasing due to the deterioration of the water quality. Some are. As the water quality of the reservoir and the like deteriorates, the surrounding landscape becomes rough and the natural destruction proceeds gradually.

[0004] On the other hand, measures for improving water quality include:
At present, there is almost no improvement, much less improvement in water quality linked to the landscape.

[0005] The present invention has been made in consideration of the above-mentioned matters, and aims not only to improve the water quality but also to restore the original green nature by greening the landscape around the improved water. It is an object of the present invention to provide a method for purifying water that also serves as useful slope revegetation.

[0006]

According to a first aspect of the present invention, there is provided a plant growth base containing a water purification agent suspended and moored on a slope surrounding stagnant water. An aquatic plant having a water purification function is planted on this base, and the stagnant water is circulated through the plant growth base by a pump, thereby purifying water with the water purification agent and the aquatic plant, and Greening the slopes.

According to a second means of the present invention, a vegetation and water purification substrate containing a plant growth substrate is suspended and moored on a slope surrounding the stagnant water, and the vegetation and water purification substrate is provided. Planting an aquatic plant having a water purification function on the base, and circulating the stagnant water through the base by a pump directly through the pipe to the base, thereby purifying water by the aquatic plant and slope by the aquatic plant. Is greening.

[0008] The slope surrounding the stagnant water includes not only the one that completely surrounds the stagnant water but also the one that does not have a part of the stagnant water or incompletely surrounds the stagnant water. Therefore, stagnant water includes not only completely stagnant water, but also partially spillable water.

[0009]

Therefore, in the first means, for example, an aquatic plant having a water purification function is planted on a plant growth base containing a water purification agent in a bag having good water permeability. A large number of such plant growth bases are laid, for example, on the slope of a reservoir. Then, the water in the reservoir pumped by the pump is supplied to the highest plant growth base on the slope.
This water is purified by the water purification agent in the plant growth base and the aquatic plants having a water purification function that grow on the plant growth base, and flows back into the reservoir. Further, since the aquatic plant covers the slope, even if the slope is formed of, for example, concrete, it can be greened.

In addition, since the plant growth base is laid on the slope by hanging and mooring, the plant growth base may be exposed to the ground before the laying, or may be cured on concrete. Regardless of the conditions of the laying slope, the laying can be freely performed without any special measures. Even if it is modified, it is possible to lay the plant growth base by an operation that is sufficient to arrange the plant growth bases in a minimum order.

In the second means, the stagnant water in the reservoir pumped up by the pump is circulated by a pump directly through a pipe to a vegetation and water purification substrate containing a plant growth substrate. Needless to say, the stagnant water is purified, and the stagnant water is exposed to the air while flowing down in the substrate and is positively subjected to an aeration action, thereby promoting purification.

[0012]

FIG. 1 is a view showing an example of the configuration of an apparatus for implementing a method for purifying water that also serves as a slope greening according to the present invention. In FIG. 1, reference numeral 1 denotes, for example, a reservoir and its surroundings. Is formed by, for example, laying concrete blocks. Reference numeral 3 denotes stagnant water in the reservoir 1.

Reference numeral 4 denotes a plant growth base laid on the slope 2 as shown in FIGS. 2A and 2B, for example, for holding the shape inside a rectangular bag 5 having good water permeability. A support frame (not shown) made of synthetic resin is provided, and a water purification agent 6 such as activated carbon, zeolite, or coconut shell charcoal, and a plant growth base material 7 such as an appropriate fertilizer.
Is housed.

Reference numeral 8 denotes an aquatic plant (hereinafter referred to as a water-purifying aquatic plant) 8 having a water-purifying function such as watercress, parsley, and color planted in the bag 5 and having a reinforcing ring 9 formed on the bag 5. It is provided so as to project out of the bag from the hole 10. The water-purified aquatic plant 8 may be a seedling or a plant that has grown to some extent.

In the four corners of the bag 5, hooks 11 are provided at two places on one side, and hook holes 12 made of reinforcing rings are provided at two places on the side opposite to the side. By engaging the hooks 11 with the hook holes 12 of the other bags 5, the bags 5 can be connected one after another as shown in FIG.

Reference numeral 13 denotes a pump for pumping the stagnant water 3 in the reservoir 1, which is, for example, a solar pump driven by a solar cell 14. 15 is a connecting pipe 16 for the pump 13
As shown in FIG. 3, a plurality of water supply holes 17 which are horizontally extended slightly higher than the uppermost plant growth base 4 and are opened at appropriate intervals. The water pumped by the pump 13 through the slope 2
It is configured to supply the plant growth base 4 above and the water-purifying aquatic plants 8 planted on the base 4. In FIGS. 1 and 3, reference numeral 18 denotes a member for fixing the water supply pipe 15 to the slope 2.

Next, the operation of the above configuration will be described. First, the uppermost plant growth base 4 is connected to the hook 11 thereof.
Is placed on the slope 2 so as to be hooked on the water supply pipe 15. Next, with respect to the plant growth base 4, the second plant growth base 4 is connected to the hook 11 by the uppermost plant growth base 4.
Into the hook hole 12. Hereinafter, repeat this,
The plant growth base 4 is spread all over the slope 2.

When a predetermined switch is turned on, the pump 13 is driven by the solar cell 14, whereby the stagnant water 3 in the reservoir 1 is pumped. The pumped water reaches the water supply pipe 15 via the connection pipe 16, and is supplied to the plant growth base 4 on the slope 2 and the water purification aquatic plants 8 planted therethrough through the water supply holes 17.

A part of the supplied water passes through the water-permeable bag 5 of the plant growth base 4, at which time it comes into contact with the water-purifying agent 6 in the bag 5 and is thereby purified. Another part of the water is supplied to the water-purifying aquatic plant 8 planted on the plant growth base 4 and used for maintaining its life, and thereby purified. The water purified by the water purification agent 6 and the water purification aquatic plant 8 returns to the reservoir 1 along the slope 6.

As described above, although a part of the stagnant water 3 in the reservoir 1 pumped by the pump 13 is used for maintaining the life of the water-purifying aquatic plants 8, most of the stagnant water 3 is used for the water purification agent 6 and the water purification. Since the water is purified by the aquatic plants 8 and returned to the reservoir 1, the stagnant water 3 in the reservoir 1 is gradually purified, and the water quality is improved. Then, the water-purified aquatic plant 8 to which a part of the pumped water is supplied is so-called hydroponic cultivation, and the water-purified aquatic plant 8 is placed on the upper surface of the plant growth base 4 with its growth. Since it prospers so as to cover, the slope 2 around the reservoir 1 is covered with green, and a good landscape is exhibited.

In the embodiment described above, the water supply pipe 1
5 is provided only at the top of the slope 2, but depending on the length from the top of the slope 2 to the water surface, a water supply pipe is provided in the middle of the slope 2 separately from the water supply pipe 15 in the same manner as the water supply pipe 15. Needless to say, it may be provided in a state.

FIGS. 4 and 5 show another embodiment of the present invention. In this embodiment, the water purification agent 6 is used.
Is housed in a synthetic resin square pipe. That is, in FIGS. 4 and 5, reference numeral 21 denotes a pipe made of, for example, a synthetic resin having a rectangular cross section [eg, Netron (trade name)]
A number of slits 22 for water flow are formed on the outer periphery. The water pipe 1 connected to the pump 13 is filled with the water purification agent 6 in the square pipe 21.
5 is provided in the longitudinal direction of the square pipe 21 so as to penetrate the water purification agent 6.

In this embodiment, the water purification pipe body 2 in which the square pipe 21 is filled only with the water purification agent 6 is used.
3 and a hole 24 of an appropriate size for projecting the water-purifying aquatic plant 8 to the outside on one side of the square pipe 21, and a vegetation and water-purifying pipe formed by planting the water-purified aquatic plant 8. The bodies (plant growth bases) 25 are alternately arranged on, for example, a sloping slope 26.

Reference numeral 27 denotes a rope for fixing each of the pipe bodies 23 and 25. Both ends and an intermediate portion thereof are fixed to a fixing portion 28 such as an anchor provided on the slope 26, and a locking member is provided at an appropriate interval. 29 is provided slidably.
By engaging the locking member 29 with the receiving member 31 of the holder 30 provided so as to fit the square pipe 21 to the outside, the pipe bodies 23 and 25 are separated from each other at appropriate intervals. 26.

The apparatus having the above-described structure also has the same function and effect as those of the embodiment shown in FIGS. 1 to 3, and therefore a detailed description thereof will be omitted.
When the stagnant water flows down through the two pipe bodies 23 and 25, the stagnant water comes into contact with the atmosphere and is aerated, so that a more ideal purifying action can be expected. In particular, the pipe body 23 for water purification filled only with the water purification agent 6 has an aeration effect superior to that of the pipe body (plant growth base) 25 for vegetation and water purification. It is an ideal solution when needed.

It is needless to say that the plant growth base material 7 may be accommodated in the square pipe 21 of the vegetation and water purification pipe body 25.

By the way, the purifying effect of the water purification agent 6 used in each of the above-described embodiments is reduced due to clogging or the like. Therefore, it is better to replace it in about one year. Then, the used water purification agent 6 can be reused for grass soil or the like.

In the embodiment described above, the water 3 in the reservoir 1
Since a so-called solar pump using solar energy is employed as the pump 13 for pumping the water, there is no need to separately provide a private power generation facility or the like, and there is almost no need for maintenance and management thereof. Further, a similar effect can be obtained by using a pump utilizing wind power instead of the solar pump. When a commercial power supply or the like is nearby, it goes without saying that a pump driven by the commercial power supply may be used.

Needless to say, the method for purifying water that also serves as the slope greening of the present invention can be widely applied to purifying stagnant water other than the stagnant water 3 in the reservoir 1 described above.

[0030]

As described above, in the first aspect of the present invention, a plant growth base containing a water purification agent is provided on the slope surrounding the stagnant water, and an aquatic plant having a water purification function is planted on the base. Planting and circulating water from a reservoir or the like through the plant growth base with a pump, thereby purifying water with the water purification agent and the aquatic plants, and greening the slope with the aquatic plants, so that the stagnation is caused. Can improve water quality, improve water quality, and revegetate slopes all at once, change the surrounding landscape surrounding stagnant water to green and maintain the state for a long time. it can.

Moreover, the plant growth base is laid on the slope by hanging mooring,
Regardless of the conditions of the laid slope, regardless of whether the slope has exposed the ground or is a concrete-cured slope,
This allows for flexible laying without any special measures, making the laying work simpler for each step, shortening each step of the construction period, and economically advantageous slope greening. Water purification enabled.

According to the second aspect of the present invention, a pipe is directly inserted and disposed in a vegetation and water purification substrate containing a plant growth substrate.
By circulating the water in the reservoir pumped up by the pump through the substrate through this pipe, the stagnant water can be exposed to the air and aggressively aerated while flowing down the substrate. It will be well and properly purified. Therefore, purification of the stagnant water, improvement of the water quality, and greening of the slope can be more ideally achieved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of the configuration of an apparatus for implementing a method for purifying water that also serves as a slope greening according to the present invention.

FIG. 2A is a perspective view showing an example of a plant growth base used in the present invention, and FIG. 2B is a longitudinal sectional view thereof.

FIG. 3 is a perspective view for explaining the operation.

FIG. 4 is a diagram showing another example of the configuration of an apparatus for carrying out the water purification method that also serves as the slope greening according to the present invention.

FIG. 5 is a perspective view showing another example of the plant growth base used in the present invention.

[Explanation of symbols]

2… Slope, 3… Standing water, 4,25 …… Plant growth base, 6
... water purification agent, 8 ... aquatic plant having water purification function, 1
3 ... Pump, 15 ... Water supply pipe, 21 ... Substrate containing water purification agent, 25 ... Substrate for vegetation and water purification.

Claims (2)

(57) [Claims] 1. A plant growth base containing a water purification agent is suspended and moored on a slope surrounding the stagnant water, and an aquatic plant having a water purification function is planted on the base. Is circulated through the plant growth base, thereby purifying water with the water purification agent and the aquatic plant, and purifying the slope with greening the slope by using the aquatic plant. Method. (2) Plant growth material is collected on the slope surrounding the stagnant water.
The suspended vegetation and water purification substrate suspended and moored
The vegetation and water purification substrate has a water purification function.
Plant aquatic plants and pump directly through the pipe to the substrate
By circulating the stagnant water through the substrate.
And purifying water by the aquatic plant,
Slope greening characterized by greening the slope with plants
A water purification method that also doubles.