JPH06339694A - Purification device - Google Patents

Abstract

PURPOSE:To easily perform purification process using a simple structure by allowing a fan to rotate forward/backward by driving of a drive means in accordance with the condition of water to be treated in a water area to flow past inside and outside a storage tank through a flow through hole, and further, the water to pass through a treatment layer with a concurrent action to purify water using microbes carried on a filler material. CONSTITUTION:Treatment layers 7, 17 with a filler material (e.g. charcoal) carrying microbes thereon are provided at least, on the top of a water collector 10 having a water passage hole 12 through which water 11 to be treated in a water area 1 can pass. In addition, a flow hole 25 which allows a passage of the water to be treated 11 is opened in the water area 1, and at the same time, a storage tank 21 which is connected to the water collector 10 in such a manner that the water 11 is passable and receives the water 11 for storage, is provided. Further, a drive means 30 has a screw 32 located near the flow hole 25, and drives the screw 32 to rotate forward/ backward. Consequently, it is possible to perform purification process easily under a simple structure without the necessity to provide a space separately, and at the same time, purify water in accordance with the condition of the water to be treated and enable backwash cleaning to be performed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purifying device for purifying treated water collected by a water collecting body by a treating means.

[0002]

2. Description of the Related Art Conventionally, various types of purifying devices of this type have been used. Among them, for example, a water collecting pipe in which a plurality of water passage holes through which treated water can pass is formed on the peripheral surface of a cylindrical pipe, is used as a purification treatment device filled with a filler carrying microorganisms. The one provided is known.

In this purification apparatus, the purification treatment apparatus has a cylindrical body having an inflow port into which treated water flows near the upper end and an outflow port into which the treated water flows out near the lower end. is doing.

A support layer and a treatment layer for purifying the water to be treated are formed at the bottom of the main body of the apparatus, and a treatment layer for purifying the water to be treated is formed. One end of the support layer is made of vinyl chloride and is closed. A plurality of cylindrical water collecting pipes are arranged in a plane along the horizontal direction. Further, an air diffuser for ejecting air to be pressure-fed by a blower is arranged above the water collecting pipe. Further, this water collecting pipe is provided with a plurality of water passage holes through which the treated water can flow, and one end of which is connected to the outlet of the apparatus main body.

Then, the water to be treated stored in the storage tank from the contaminated water area flows into the upper part of the apparatus main body from the inlet through a pump or the like, and air is blown by the air diffuser to be aerated. The, while passing through while being purified by the microorganisms carried by the filler constituting the treatment layer, the treated water to be treated flows through the support layer, and flows into the water collection pipe from the water passage hole, It flows out of the device body from the outflow hole with a pump.

[0006] Further, in order to remove filtered residue and extra microorganisms that have proliferated in the treated layer, backwashing is performed by ejecting treated water from the water collection pipe through the water holes to the support layer and the treated layer with a pump or the like. The debris and the like removed by the backwashing is discharged to the outside of the device main body by the recovery device.

[0007]

However, in the above-described conventional purification apparatus having the above-described structure, for purification treatment of the water to be treated, a filling tank carrying microorganisms to be purified is pumped from a storage tank in which the water to be treated is stored. Since the water to be treated flows into the main body of the equipment that has a treatment tank composed of materials, and the treated water flows out by the pump, a space for installing the storage tank and the main body of the equipment is required outside the water area. Since the cleaning process is performed by a plurality of pumps and a separate device for backwashing is required, there is a problem that the structure is complicated and the construction cost increases.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a purifying device which does not require an installation space and has a simple structure and which is capable of purifying treatment and backwashing.

[0009]

The purification device of the present invention comprises a water collecting body having water passage holes through which water to be treated in a water body can flow, and a packing material provided on at least an upper portion of the water collecting body and carrying microorganisms. A treatment layer having, a storage tank which opens a circulation hole through which the water to be treated can flow in the water area, and which stores the water to be treated so that the water to be treated is flowably connected to the water collecting body; And a driving unit that has a screw body located near the hole and that rotationally drives the screw body such that the screw body can rotate normally and reversely.

[0010]

In the purifying apparatus of the present invention, the water to be treated in the storage tank is discharged to the water area through the circulation holes by the fan that is driven by the drive means, and the water to be treated in the water area is discharged along with the outflow. The treated water that has passed through the treatment layer while being purified by the microorganisms carried by the filler flows into the water collecting body through the water passage, flows into the storage tank, and the treated water recirculates throughout the water area. Will be processed. Further, the water to be treated in the water area flows into the storage tank by the fan that rotates in reverse due to the reverse rotation of the drive of the drive means, and by this inflow, the water to be treated in the storage tank becomes the water passage hole of the water collecting body. Through, through the treatment layer while being purified by the microorganisms carried by the filler, and again discharged to the water area as treated water, and when the treatment layer flows through, the treatment layer is backwashed. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the purifying device of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an artificial pond as a body of water, and this artificial pond 1 is, for example, a dam,
It is installed in lakes, rivers, irrigation canals, reservoirs and golf courses.

The bottom portion 2 of the artificial pond 1 is covered with gravel 3 having a grain size of, for example, 2 to 3 cm with a thickness of 0.2 to 0.5 m and a predetermined distance. The gravel lower layer 4 is formed.

Further, the upper part of the gravel lower layer 4 is covered with charcoal 6 having a particle size of, for example, 1 to 3 cm for supporting microorganisms (not shown) in a thickness of, for example, 0.2 to 0.5 m. The lower layer 7 is formed.

A cylindrical pipe body 8 made of, for example, vinyl chloride and having a diameter of about 5 cm is formed on the upper portion of the treated lower layer 7, and a water collecting body in which one end of the pipe body 8 is closed by a cap body 9. A water collecting pipe 10 is provided. Further, these water collecting pipes 10 are provided on both circumferential surfaces in the horizontal direction along the longitudinal direction,
A plurality of water passage holes 12 having a diameter of, for example, about 10 mm are provided at predetermined intervals so that the water to be treated 11 in the artificial pond 1 can flow.

Further, the water collecting pipe 10 is provided with an air hole (not shown) on the upper peripheral surface on the side closed by the cap body 9 so that gas such as air can flow out, and the cap body 9 is also provided. A drain hole (not shown) is formed in the lower part of the end face of the so as to allow mud and fine sand to flow therethrough.

Further, the water collecting pipe 10 has a cylindrical shape having an inner diameter substantially the same as the outer diameter of the water collecting pipe 10 so that foreign matters are not blocked in the water passage hole 12 and the air hole, and the charcoal 6 does not pass through the mesh. The assembled mesh body 14 is fitted and fixed.

The water collecting pipes 10 are arranged in a branched manner by connecting a plurality of main pipes 15 having a diameter of, for example, 150 mm, and the other ends of the water collecting pipes 10 in parallel at a predetermined interval.

On the other hand, in the artificial pond 1, the same as the lower treatment layer 7, for example, 1 so as to cover the water collecting pipe 10 in which the net body 14 is fitted.
A charcoal 6 having a particle size of ˜3 mm is laid in a thickness of, for example, 0.2 to 0.5 m to form a treatment upper layer 17, which is a treatment layer.

In addition, the water passage hole 12, the water collection pipe 10 and the main pipe 15
In order to reduce water collection resistance and to perform efficient purification treatment, 1
The cross-sectional area of the water collection pipe 10 of one book and the total opening area of the plurality of water passage holes 12 formed in this one water collection pipe 10 are approximately the same area, and the cross-sectional area of one main pipe 15 It is preferable that the plurality of water collecting pipes 10 connected to the main pipe 15 are formed to have substantially the same area as the entire cross-sectional area. Further, it is preferable that the interval between the water holes 12 is formed to be substantially the same as the thickness of the upper and lower processing layers 7 and 17.

Furthermore, gravel 3 having a grain size of, for example, 2 to 3 cm is spread on the upper portion of the treated upper layer 17 so that the charcoal 6 does not float up, for example, in a thickness of 0.2 to 0.5 m. The upper gravel layer 18 is formed. And further,
The upper surface of the gravel upper layer 18 is covered with a net 19 woven in a smaller size than the diameter of the gravel 3 so that the upper gravel layer 18 does not collapse, and a treatment means 20 is formed by being fixed to the bottom portion 2 of the artificial pond 1. There is.

On the other hand, reference numeral 21 denotes a storage tank, and as shown in FIGS. 1 to 5, the storage tank 21 has a box-shaped main body portion 22 having an open top surface and an opening on the top surface of the main body portion 22 which can be freely opened and closed. It is composed of a flat plate-like lid body 23 closed and attached to the artificial pond 1 and arranged at the bottom portion 2 of the artificial pond 1.

A main pipe 15 to which the water collecting pipe 10 of the processing means 20 is connected is connected below each side surface of the main body portion 22 so as to communicate the water collecting pipe 10 with the inside of the storage tank 21. ing. On the other hand, the lid 23 is formed with a flow hole 25 that opens upward at approximately the center and connects the artificial pond 1 and the inside of the storage tank 21. In addition, in the vicinity of the four corners of the upper surface of the lid 23, the lid
A hook 26 for carrying 23 is attached, and a through hole 28 for inserting an electric wire 27 or the like is formed in one corner.

Further, an underwater motor 30 as a driving means is attached to the lid 23. The submersible motor 30 has a rotating shaft 31 that rotates in the forward and reverse directions, and a fan 32 as a screw member that is positioned so as to close the flow hole 25 of the lid 23 is fixed to the rotating shaft 31. Has been done.
Further, the submersible motor 30 is connected to the electric wire 27 for supplying the electric power introduced into the storage tank 21 through the through hole 28 of the lid 23.

The submersible motor 30 is fixed at its upper end by supports 33 attached to the flow holes 25, and at its lower end is a string-like support 34 fixed at the four corners of the main body portion 22.
It is mounted so that the treated water 11 in the storage tank 21 can flow out into the water area and the treated water 11 in the water area can flow into the storage tank 21 by the fan 32 that is fixed at Has been.

Further, 36 is a switchboard, and this switchboard 36 is provided with control means (not shown) for controlling the drive of the submersible motor 30, and the electric wire 27 for supplying power to the submersible motor 30 in the storage tank 21 is led out, It is installed near the shore of artificial pond 1.

Next, the purification process of this embodiment will be described.

First, the submersible motor 30 of the storage tank 21 is driven to rotate the fan 32 together with the rotary shaft 31. And
By the rotation of the fan 32, the treated water 11 in the storage tank 21
Is discharged to the artificial pond 1 so as to blow upward through the circulation hole 25 of the storage tank 21.

With the outflow of the treated water 11 in the storage tank 21, the inside of the storage tank 21 has a negative pressure, and the treated water 11 in the artificial pond 1 becomes the charcoal 6 of the upper treatment layer 17 and the lower treatment layer 7. While passing through the upper and lower treatment layers 7 and 17 while being purified by the carried microorganisms (not shown), they flow into the water collection pipe 10 through the water passage holes 12. Further, the treated water that has flowed into the water collection pipe 10 flows into the storage tank 21 through the main pipe 15 and is again discharged to the artificial pond 1 by the rotating fan 32. Then, while the treated water 11 is being treated, the entire artificial pond 1 is refluxed, and the artificial pond 1 is gradually purified.

The treated water 11 in the storage tank 21 is fed to the artificial pond 1
The rotation speed of the fan 32 for flowing out into the upper and lower layers 7, 17 is such that the treated water 11 in the artificial pond 1 is efficiently purified by the microorganisms carried on the charcoal. 1
The flow rate is set to about 4 cm / min so that the water is collected in the water collecting pipe 10.

Further, when the amount of dissolved oxygen near the water surface of the artificial pond 1 is large in the summer and the amount of dissolved oxygen near the bottom 2 of the artificial pond 1 is small, the water temperature near the water surface of the artificial pond 1 is low in winter, When the treated water 11 is stagnant and the condition of the treated water 11 is different in the whole artificial pond 1 such as when the water temperature near the bottom 2 of the artificial pond 1 is high, the rotation of the rotary shaft 31 is reversed to turn the fan 32 on. Reverse rotation. And the treated water in the artificial pond 1 11
Are forced to flow into the storage tank 21 by the rotating fan 32.

Due to the inflow of the treated water 11 into the storage tank 21, the treated water 11 in the storage tank 21 passes through the main pipe 15 to collect water.
Extruded to 10. Further, the treated water 11 in the water collection pipe 10
However, the artificial pond 1 flows through the treated upper and lower layers 7 and 17 while being purified by the microorganisms carried on the charcoal 6 of the treated upper and lower layers 7 and 17.
And is again flowed into the storage tank 21 by the rotating fan 32. Then, while the treated water 11 is being treated, the entire artificial pond 1 is refluxed, and the artificial pond 1 is gradually purified.

Even in this purification treatment, the water to be treated is treated.
The rotation speed of the fan 32 is set so that 11 flows through the water passage hole 12 of the water collection pipe 10 in the thickness direction of the upper and lower treatment layers 7, 17 at a speed of about 1 to 4 cm / min.

When the fan 32 is subjected to the purification treatment by the reverse rotation, the treated water 11 is caused to flow out from the water passage hole 12 of the water collecting pipe 10 at a flow rate that does not damage the treatment upper and lower layers 7 and 17 and damages the treatment means 20. The extra microorganisms that have proliferated and the fallen leaves filtered in the upper and lower layers 7 and 17 of the gravel are peeled and removed. Further, due to the backwashing, the separated microorganisms are decomposed by the ecosystem such as micro animals and fish in the artificial pond 1.

In this way, by simply reversing the rotation of the submersible motor 30 that rotates the fan 32, the treated water 11 in the artificial pond 1
According to the above condition, the entire artificial pond 1 can be purified while being refluxed, and also can be backwashed, so that the purification process is simple and the simple structure in which the fan 32 is pivotally supported on the submersible motor 30 reduces the manufacturing cost. It can reduce the construction cost. Further, since it is installed in the artificial pond 1 to be purified, it is not necessary to separately secure an installation space, and it is possible to cope with any water area where an installation space cannot be secured near the water area such as a dam. Further, since the entire artificial pond 1 is refluxed with a simple structure to supply the dissolved oxygen necessary for the microorganisms in the upper and lower treatment layers 7 and 17, purification treatment can be performed without separately providing an air diffuser.

On the other hand, processing means such as a submersible pump
Water to be treated in the storage tank 21 without directly connecting to the main pipe 15 from 20
Using 11 as a medium, the water to be treated 11
Since the submersible motor 30 is conveyed, a large load is not applied to the submersible motor 30, and damage to the submersible motor 30 can be prevented.

Charcoal 6 used for supporting microorganisms
Is inexpensive, has extremely high porosity and specific surface area, can support not only various bacterial cells but also micro-animals, contains elements necessary for biochemical reactions, and can also adsorb inorganic compounds. Can be carried, and the purification treatment efficiency can be improved.

Although the purification treatment of the artificial pond 1 has been described in the above embodiment, the same effect can be obtained not only in the closed water area but also in the open water area.

Further, the charcoal 6 was laid on the upper and lower sides of the water collecting pipe 10 as the microorganism supporting material to form the upper and lower treated layers 7 and 17, but any filler such as porous ceramics capable of efficiently supporting the microorganism can be used. The same effect can be obtained by using the structure in which the treatment layer is provided only above the water collection pipe 10.

Furthermore, the gravel lower layer 4 is the bottom 2 of the artificial pond 1.
The gravel 3 is spread so as not to suck up mud and the like, and the bottom 2 of the artificial pond 1 is formed by spreading the gravel 3 to form a flat surface for forming a processing means on the uneven bottom 2. When a non-permeable sheet is laid on or a flat surface is formed with concrete etc.,
The lower gravel layer 4 may not be formed.

Further, although the description has been given by using the cylindrical water collecting pipe 10, any shape such as a prismatic shape may be used. Further, also in the storage tank 21, the same effect can be obtained even if the storage tank 21 is formed in any shape according to the shape of the water area. On the other hand, although the fan 32 is used as the screw body, the same effect can be obtained by using a spiral screw or the like, or by providing a plurality of the fans 32 coaxially.

If the water is contaminated and the dissolved oxygen required for the microorganisms cannot be obtained, an air diffuser may be provided. Further, as the processing means, the gravel 3 and the charcoal 6 have been laid out, but for example, the gravel 3, the charcoal 6, and the water collecting pipe 10 may be added to a unit which is water-permeable and is formed in a lattice-like box shape.
Etc., the processing means 20 is integrally formed, and the main
Even if the storage tank 21 is connected at 15, the same effect can be obtained.

On the other hand, the operation of reversing the rotation of the submersible motor 30 may be performed by any method such as operation by a switch provided on the switchboard 36, reversal by a timer, or reversal by various sensors such as a water temperature sensor.

[0044]

According to the purifying device of the present invention, the drive means drives the fan to rotate in the reverse direction in accordance with the state of the water to be treated in the water area, so that the water to be treated is stored in the storage tank through the circulation hole. Since it passes through the inside and outside and the purification layer is purified by the microorganisms carried on the packing material, the treatment layer is allowed to flow through and the entire water area is refluxed for treatment, so no separate installation space is required for the purification treatment, and it is simple With such a structure, it can be easily purified, and it can be purified according to the condition of the water to be treated, and can be easily backwashed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which an embodiment of a purification device of the present invention is installed in an artificial pond.

FIG. 2 is a plan view of the same artificial pond.

FIG. 3 is a plan view showing the same purifying device.

FIG. 4 is a cross-sectional view showing the same storage tank.

FIG. 5 is a plan view of the same.

[Explanation of symbols]

 1 Artificial pond as a water area 6 Charcoal as a filler 7 Treated lower layer as a treated layer 10 Water collecting pipe as a water collecting body 11 Treated water 12 Water holes 17 Treatment layer as a treated layer 21 Reservoir 25 Reservoir 25 Flow hole 30 Driving means Submersible motor as 32 Fan as screw body

Claims (1)

[Claims] 1. A water collecting body having water passage holes through which water to be treated in a water body can flow, a treatment layer having a filler for supporting microorganisms, which is provided on at least an upper portion of the water collecting body, and the water body to be treated. It has a storage tank which opens a circulation hole through which water can flow and in which the treated water is connected to the water collecting body so that the treated water is circulated, and a screw body which is located in the vicinity of the circulation hole. A purifying device comprising: a driving unit that rotationally drives the screw body so as to be able to rotate forward and backward.