JPH0716661B2 - How to clean water in shallow water - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a shallow water area for the purpose of irrigation in lakes, swamps, ponds, rivers or reservoirs for irrigation in relatively shallow water areas (for example, water areas up to a depth of about 5 m). Regarding the water method.

[0002]

2. Description of the Related Art Conventionally, dams, lakes, swamps, reservoirs or ponds
In rivers, etc., algae grow as the water temperature rises.
Although fish dying due to oxygen deficiency in the water, bad odor due to organic matter corrosion, and water quality deterioration due to other causes,
There was no cheap and effective way to prevent water quality deterioration. For example,
Though it was considered to use filtered fresh water with activated carbon, it has not yet been universally used. In such large dam lake, swamp water depth, by forced convection of water in the vertical direction by the intermittent air pumping equipment, water algae
Attempts were made to lead to a deeper place and to increase the amount of dissolved oxygen and the amount of dissolved oxygen, with considerable success.

When the depth of water is large, for example, a large-capacity pumping cylinder is known (Actually developed Sho 60-176300).
No.), and a fresh water technology using a pumping cylinder was developed (Japanese Patent Application No. 61-75165), but all of these devices use convection between surface water and deep water. It was possible to send algae that grow abundantly in the surface layer to the dark place at the bottom of the bottom of the water, prevent their reproduction, and achieve both purposes of killing algae and supplying oxygen.

[0004]

However, even if a pumping cylinder is installed in a shallow water area to cause convection of water, it is impossible to kill the algae on the surface of the water only slightly downward. Also, most of the sewage is due to the suspension of fine solids in the water, but there was no means for efficiently precipitating this and no means for improving oxygen deficiency.

Conventionally, when a flocculant or an algaecide is used, these treatment agents are mixed in the inflow water or introduced from the ship, but by mixing in the inflow water, a large-capacity reservoir or It was extremely difficult to evenly disperse the treatment agent in water such as lakes and swamps. Further, even when the treating agent was injected from the ship, it was not hoped that the treating agent in the water would be diffused in the vicinity of the introduction place as it was and diffused in the lateral direction other than the introduction position.

Further, according to the above-mentioned conventional technique used for a dam having a large water depth, it is considered that the diameter of the pumping cylinder is usually 40 cm or more. However, bubble bullets rise intermittently in the pumping cylinder having a diameter of 40 cm. However, in order to pump water smoothly, the length of the pumping cylinder is preferably at least 3 m or more. However, it is preferable that the upper end of the pump is at a water depth (depth from the water surface) of approximately 50 cm or more, and if the height of the air chamber that intermittently generates bubbles is 50 cm, the water depth is 4.5 m or more. Without it, a good pumping function cannot be expected.

Therefore, in a pond having a water depth of 2 m, a good pumping function can be expected if the pumping cylinder has a diameter of about 10 cm and the pumping cylinder has a length of about 1 m. The volume is too small for the amount (for example, water depth 40
For a dam of m, etc., one pump with a diameter of 50 cm and a length of 10 m can supply 500,000 to 1 million tons of water. ), There was a problem that the purpose of water purification could not be achieved unless the number of installations was remarkably increased. Therefore, a small-diameter, large-capacity composite cylinder was obtained by setting the number of pumping cylinders to four to several. However, when supplying air to each pumping cylinder, the delicate conditions between the pumping cylinders are delicate. Due to the difference, simultaneous uniform pumping was difficult.

For the above-mentioned reason, a deep water layer using a pump
Utilize invention of turbid water treatment (Japanese Patent Publication No. 58-27998)
I couldn't do it.

[0009]

Therefore, according to the present invention, a lake, a marsh, a reservoir, or the like is installed at a predetermined water depth position (if it happens to be a deep position, if not, if not, artificially excavate the bottom of the water. (For example, 2 m or more is possible.) A pumping cylinder is installed , and the algae is killed by diffusing the algaecide in the process of circulating and flowing water by the pumping cylinder, thereby achieving the purpose of the clearing water relatively easily. It is a thing.

That is, the present invention generates a rising water flow due to a bubble in a water pipe at a proper place such as a relatively shallow lake, swamp, pond or river, and causes a rising water flow to be generated in a parallel standing pumping cylinder. by diffusing into the water near the algicidal utilizing water, in the process of raising and lowering convection circulating fluidized water waters around the lifting water bottle, to diffuse the algicide to all waters, algae It is a method of cleansing water in shallow water, which is characterized by treatment.

The algicidal agent is copper sulfate or copper chloride.
Is.

The pumping cylinder has a water depth of 2 m due to convection circulation of water.
In order to operate more efficiently in the above places, it is desirable that the surface layer portion and the lower layer portion have a shape that facilitates convection, as shown in FIG. 1, for example. Therefore, it is also possible to artificially excavate the water bottom (for example, using a sand pump) so as to make the water depth the required depth, and form the water bottom as shown in FIG.

[0013] When the front wire carrier algae agent is applied as a liquid, as in Fig. 1 shown in a part of the lifting water bottle to face the liquid supply pipe, if a predetermined amount destined supplying the liquid, to achieve the object You can also In the above, although it has been explained that the pumping cylinder is installed in the lake, the swamp, etc., the necessary amount of treated water is introduced from the lake, the swamp, or the river to the reservoir, and the pumping cylinder is installed in the reservoir . in some cases cause I line algicidal.

The concentration of the algicidal agent is 0.22 ppm to 1.0.
ppm is suitable. It was confirmed that the concentration of this level achieves the purpose of killing algae without killing fish.

[0015]

[Action] That is, according to the present invention, the algicidal agent wide range, and so evenly spread, algae in water is killed, and the upper and lower convection circulation operation by intermittently increasing water flow occurs,
The amount of dissolved oxygen in water can be increased.

[0016]

Embodiment 1 Next, an embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, the water bottom having a water depth of 3 m (chain line 47) is excavated as shown by a solid line 47 a, the deepest part is set to 5 m, and the composite cylinder 2 is installed in the part. The installation location of the composite cylinder 2 varies depending on the amount of water, the water depth, and the shape of the water bottom.
For example, the composite cylinder 2 is constructed based on the calculation that one pump cylinder having a diameter of 20 cm is installed for every 1000 to 500 tons of water. In the case of FIG. 1, the pumping is diffused to the left and right as shown by arrows 48 and 48a, descends from the water surface to the bottom of the water, reaches the composite cylinder through the bottom of the water, and is pumped again as shown by arrows 48b and 48c. , This will be repeated. 2 shows the installation positions of the composite cylinders 2, 2a, 2b, 2c with respect to the lake 50. Next, in FIG. 3, the artificial canal 49 is formed between the chain line 53 and the discharge canal 52 on one side of the lake 51, and the composite cylinders 2 and 2a are installed only in this part. In any case, the structure is such that all the water that passes through will be washed out.

If an appropriate amount (for example, a concentration of 10 to 30 ppm) of algaecide (for example, aluminum chloride) is supplied from the algaecide tank 60 to the chemical injection hose 32 of the cylinder 1 that constitutes the composite cylinder 2, the arrow will be used. algaecide as the water diffuses as shown 48,48a also diffuse, kill floating遊藻compound can be precipitated them. In the figure, 61 is a compressor.

[0019]

[Embodiment 2] Next, an example of an apparatus used for carrying out the present invention
It will be described with reference to 4 through 6.

Cylinders 1, 1a, 1 having a diameter of 10 cm and a length of 1 m
b and 1c are arranged upright side by side to form a composite cylinder 2, and air chambers 3 and 3 are provided below the respective cylinders 1, 1a, 1b and 1c.
a, 3b, 3c are connected to each other, and an annular air storage chamber 4 is provided above the air chambers 3, 3a, 3b, 3c at the outer peripheral portion of the composite cylinder 2.
Is fitted and fixed to the outside of the composite cylinder 2, and the air storage chamber 4 and the air chambers 3, 3a, 3b, 3c are provided with air supply pipes 5, 5 respectively.
In the figure, 6 is an air supply hose for sending pressurized air to the accumulator 4, 7, 7 are self-standing buoys for erecting the composite cylinder 2 into the water, and 8 is A suction preventing plate for preventing suction of mud and the like accumulated on the water bottom installed at a predetermined distance from the lower end of the composite cylinder 2, and 9 is a weight for stabilizing the pumping device. The air chambers 3, 3a, 3b, and 3c are inner partition plates 10, intermediate partition plates 11, outer plates 12, and partition plates that are installed outside the respective cylinders 1, 1a, 1b, and 1c in a plane arc shape at predetermined intervals. It is constituted by a space surrounded by 13 and 13.

[0021] In the embodiment, in FIG. 5 air line 6
Therefore, when the pressurized air is sent as shown by the arrow 14, the pressurized air fills the air storage chamber 4, and when it reaches a predetermined pressure, the pressurized air is sent through the air supply pipes 5, 5a, 5b, 5c. The air is fed into each of the air chambers 3, 3a, 3b, 3c as indicated by 15 (the post-accumulation chamber 4 is always filled with air at the set atmospheric pressure). Therefore,
When air enters the outer chamber 16 of the air chamber and the middle chamber 17 through the communication hole 23, the water level in each chamber is pushed down as indicated by the arrow 18 as the air in each chamber increases, so that Water passes from the outer chamber 16 to the outside through the communication hole 24 at the bottom of the air chamber as shown by the arrow 19, or as shown by arrows 20 and 21.
It is discharged into the cylindrical body 1 from inside the inner chamber 17 and inside the inner chamber 22 via 5 and 26.

[0022] In this way, the water level in each chamber 5
When the position of the middle chain line 27 is reached, the air in the outer chamber 16 and the air in the middle chamber 17 rises in the inner chamber 22 through the communication holes 23 and 25 and is discharged into the cylinder 1 through the communication hole 26. However, since the amount of air in this case is a relatively large amount, which is almost the same as the capacity of the outer chamber 16 and the inner chamber 17, when it enters the cylinder 1, the air bubbles 2
It becomes 8 and rises like the arrow 29. So bubble 2
Due to its buoyancy, 8 pushes up the water above it in the cylinder 1 and pulls up the water below it. The bubble bullet 28
As the water is discharged from the cylinder, the flow velocity of the pumping water is gradually reduced, and the flow velocity is increased again by the next discharge of the bubble bullet 28. Therefore, if the capacities of the air chambers 3, 3a, 3b, 3c are designed so that the bubble bullets 28 are discharged at appropriate intervals, water can be efficiently pumped. Further, the amount of air is appropriately selected in accordance with the diameter of the cylinder 1, so that the air volume becomes a bullet shape in the cylinder 1 as quickly as possible and the buoyancy thereof can be fully utilized.

[0023] FIG. 5 of 32 is a dosing hose to send the algaecides, the lake should be Kiyoshimizu, in the case of algae in the water, such as a swamp or pond is too breed if it is sprayed with algaecides It is used for processing such as killing these. Therefore, by connecting the chemical injection hose 32 to each of the cylinders 1 or the predetermined cylinder 1a, the chemical solution can be diffused and circulated by pumping water as needed, whereby the objective can be efficiently achieved.

According to the above embodiment, since air is supplied from the air storage chamber to each air chamber, the supply pressure and amount can be made the same for each cylinder. Therefore, if each air chamber has the same volume, the bubble bullets 28 can be discharged from each cylinder at the same time, and the same effect can be expected as in the case of using one pumping cylinder having a large diameter.

[0025]

Effects of the Invention] That is, according to the present invention, since the diffuse algicidal utilizing convection circulation pumping by lifting canteen, aeration and spreading the drug at the same time, the increase of dissolved oxygen, killing the algae There is an effect that can be easily flushed.

[0026] According to the present invention, the parallel pumping with a small diameter of the algaecide
Since a cylinder is used, it can be efficiently diffused into a shallow water area, so that there is no local light and shade, and there is an effect that it can be used in a uniform concentration. Reliably perform algae killing in shallow water that was previously profitable
I was able to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the use state of the present invention.

FIG. 2 is a plan view of the same layout in a lake.

FIG. 3 is a layout plan view when a fresh water section is provided in the lake as well.

FIG. 4 is a perspective view of another device used for carrying out the invention.

FIG. 5 is a partially enlarged vertical front view of the same.

FIG. 6 is an enlarged cross-sectional plan view of the communication hole.

[Explanation of symbols]

1 cylinder 2, 2a, 2b, 2c composite cylinder 3, 3a, 3b, 3c air chamber 4 air storage chamber 5, 5a, 5b, 5c air supply pipe 6 air supply hose 7 self-standing buoy 8 suction prevention plate 9 inside weight 10 Partition plate 11 Middle partition plate 12 Outer plate 13 Partition plate 14 Outer chamber 17 Middle chamber 23, 24, 25, 26 Communication hole 28 Bubble shell 32 Chemical injection hose 49 Artificial water channel 52 Water discharge channel 60 Algaecide tank

Claims (2)

[Claims] 1. A relatively shallow in place of water, such as lakes, marshes, ponds or rivers, air upright installed with a plurality of juxtaposed lifting the water bottle
To generate increased water flow due Awa彈 by diffusing algicidal using this increased flow of water around, in the process of raising and lowering convection circulating fluidized water waters around the lifting water bottle, the killing A method of draining water in shallow water, characterized by diffusing algal agents in all water areas to treat algae . 2. The algaecide is copper sulfate or copper chloride.
1. The method of cleansing water in shallow water described in 1.