JPH1015532A - Complex type area purifying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To activate self-cleaning function of natural water by complex type self-cleaning function in which ecological self cleaning function and physical self-cleaning function are combined. SOLUTION: A suction filter box main body 11 is divided into a pump division 3 and a filter division 4 and underwater bacteria which adhere to plant plankton and decompose the plankton into inorganic matters are propagated in the filter in the filter division 4 to increase the ecological self-cleaning effect, and on the other hand, water current is generated in a water area by driving an ejector type water current generating apparatus by discharged water of an underwater pump installed in the pump division 3 to increase the physical self-cleaning effect, so that self-cleaning function of natural water can be activated and polluted water can effectively be purified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for purifying water bodies such as lakes and ponds, and more particularly, to an apparatus for purifying water bodies using a physical self-cleaning action and an ecological self-cleaning action.

[0002]

[Prior art]

Prior art 1. (Physical forced filtration type purification device) As shown in FIG. 9, this device sucks up polluted water in the target water area 20 by a suction pump 21 installed on land and uses a general filtration tank (sand And activated carbon, etc.), which is physically filtered by means of 22; the washing water is pressurized by a water supply pump 23; and returned to the target water area 20 by a fountain 24 or the like via a water supply pipe 25.
It is mainly used as a purification device for small water bodies such as small fountains in parks in front of stations, small fountains in parks, swimming pools, and swimming pools.

Prior art 2. (Ultraviolet sterilization type purification apparatus) As shown in FIG. 10, this apparatus sucks up polluted water in the target water area 20 by a suction pump 21 through a primary filter 26, The phytoplankton, which is the cause of pollution, is extinguished by
The water is returned to the target water area 20 via an artificial waterfall 28 or the like via 25.

Prior art 3. (Underwater filter type purification device) This device is composed of a filter 29 for forced filtration and a suction pump 30 and a water supply pump 31 provided upstream and downstream of the filter 29 as shown in FIG. , This device 32
By installing it at 20, the water is given a flow to trap and filter the pollutants.

Prior art 4. (Water flow generation type purification device) In this device, as shown in FIG. 12, a water flow generator 35 having a water transmission function equipped with a propeller 35a is installed in a target water area 20 to promote the flow of water. It is intended to improve water quality by doing so. Reference numeral 36 denotes a drive power cable (or pressure water pipe) for driving the propeller 35a.

[0006]

The above-mentioned prior arts 1 and 2
However, there is a problem that the cost per unit of water is high because the natural purification function of water is not used, and therefore, it is limited to a situation where clear water quality is required in a small water area such as a pool.

In the prior art 3, while it is necessary to increase the flow velocity for the purpose of promoting the flow, it is necessary to reduce the flow velocity in order to increase the physical / biological filtration effect, but this contradiction is not solved. . In general, in the past, in order to prevent clogging, the underwater filter has a coarse filter material even if the filtering effect is sacrificed. Therefore, the device of the prior art 3 has a problem that only the capture of coarse dust is performed, and it is difficult to capture and filter phytoplankton or the like which is a true cause of pollution.

Further, in the prior art 4, there is a problem that an artificial pond having a shallow depth of water has little effect on vegetation pollution of surface water because of no filter function.

The present invention seeks to solve these problems, and implements a minimum artificial means for activating and promoting ecological and physical self-cleaning actions of natural water. This will solve the technical issues required to achieve water purification in the target water area, especially the inconsistent technical issues of flow velocity between the purpose of flow promotion and the purpose of filtration, and also the overall It is an object of the present invention to provide a complex water purification system that solves a technical problem for realizing improvement of a natural environment at a minimum cost.

[0010]

DISCLOSURE OF THE INVENTION The present invention provides an ecological self-cleaning action, that is, the growth of water-borne bacteria that adhere to phytoplankton grown by photosynthesis and decompose into inorganic substances.
In order to promote the adhesion, the filter should be made of a water-permeable structure such as a brush-like string to increase the contact area for pollutant growth and adhesion, and to maintain the ecological self-cleaning effect, it is necessary to keep the filtration flow rate slow. Therefore, the flow rate capacity of the suction pump, the density of the filter, and the distance between the filters can be modified according to the cleaning effect, which is a means for solving the problem.

Further, in order to activate the physical self-cleaning action, that is, the purifying action by advection, diffusion, sedimentation, adhesion, and adsorption, an ejector type water flow generator having a flow-promoting stress many times larger than the flow rate of a pump for pumping filtered water. Is installed, and a backwash discharge device is installed to solve the problem of clogging in a densely arranged filter medium.

In the suction filter box of the present invention, phytoplankton, which causes water pollution in the target water area, is ecologically reduced, and solid pollutants, which cause deterioration in bottom water quality, are physically filtered and captured. Therefore, the effect of water purification can be realized at low speed, continuously, automatically and economically.

[0013] Further, by using an ejector-type water flow generating device, a flow promoting ability can be obtained which is many times larger than the amount of water supplied by the first submersible pump, causing a necessary and sufficient flow in the entire target water area, and a physical self-cleaning action. It promotes ecological self-purification and can effectively purify water bodies.

Furthermore, by operating the second pump for backwashing pollutant discharge to collect pollutants on land, not only the target water area but also the ecological circulation including the land phase is maintained, thereby maintaining the entire natural environment. Can be measured.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a composite water purification system according to an embodiment of the present invention.
1 is a schematic view showing the installation state, FIG. 2 is a perspective view of the suction filter box, FIG. 3 is a perspective view of the filter section, FIG. 4 is a perspective view of the backwash blow pipe,
5 is a side view of the pump section, FIG. 6 is a front view of the pump section partition, FIG. 7 is a front view of a modified example of the pump section partition, and FIG. 8 is a side sectional view of the water flow generator. .

As shown in FIG. 1, the combined water purification system of this embodiment is a suction filter box (hereinafter abbreviated as "filter box") installed in water such as an artificial pond A as a target water area. 1, a water flow generator 2, a filtered water pressure feed pipe 14, a backwash contaminant drain pipe 15, and the like.

As shown in FIG. 2, the filter box 1 has a box body 11 having a rectangular cross section. The inside of the box body 11 is divided into a pump section 3 at the center and filter sections 4 at both sides. .

As shown in FIG. 5, the pump section 3 is provided with a first submersible pump 5 for suctioning / filtration of contaminated water and a second submersible pump 6 for discharging backwash contaminants. Reference numeral 14 in FIG. 5 indicates a filtered water pressure feeding pipe (discharge pipe of the submersible pump 5), and reference numeral 15 indicates a backwash contaminant drain pipe (discharge pipe of the pump 6). Reference numerals 5a and 6a indicate underwater power cables of the underwater pumps 5 and 6, respectively.

A pump partition plate 16 is provided between the pump partition 3 and the filter partition 4 (see FIG. 6), and a water guide opening 17 is formed in the pump partition plate 16. In addition, as shown in FIG.
a.

As shown in FIG. 3, a filter 12 made of a material having good water permeability, such as a brush-like string, is attached to a filter mounting frame 13 in the filter section 4, and is arranged in a screen at appropriate intervals in series. Has been established. Further, a net 9 is attached to each outer surface of each filter section 4. Between the filters 12, a backwash blow pipe 7 composed of a plurality of branch pipes 7A having a large number of small holes 7B as shown in FIG. 4 is disposed.

Reference numeral 18 denotes an air blow pump for backwashing the filter attached to the outside of the filter box 1. The backwash blow pipe 7 is connected to a discharge port of the air blow pump 18, and an air blow pump is provided. The air supplied from 18 is blown from the small holes 7B as bubbles 7a to the filter 12 to perform back washing of the filter.

Reference numeral 10 in FIG. 2 denotes a box lid. The box lid 10 is provided with a back-wash blow air bleeding tube 8, and bubbles 7a are discharged from the air bleeding tube 8 to the outside. The box body 11 is made of a material having corrosion resistance, such as a vinyl chloride material, and is inexpensive and easy to process.

In the above-described configuration, when the first submersible pump 5 is driven by the appropriately installed submersible power cable, the contaminated water is sucked. The contaminated water is filtered by the net 9 to remove coarse dust, flows into the filter section 4, and sequentially passes through the plurality of brush-like filters 12 in the filter section 4 in series. While the polluted water passes through the brush filter 12,
Phytoplankton, which is the cause of pollution, is captured by filtration.

The fine plankton not captured in this step is adsorbed by the bacteria that have grown on the brush fiber surface of the brush-like filter 12, and the subsequent growth is suppressed.
The water that has passed through the filter section 4 and has been reduced in turbidity in this manner is supplied to the water introduction opening formed in the pump section partition plate 16.
It is sucked into the pump section 3 from 17, is pressurized by the first submersible pump 5, passes through the filtered water pressure feed pipe 14, and is fed to the water flow generator 2 by pressure.

As shown in FIG. 8, the water flow generator 2 has a cylindrical main body 2a as a suction pipe of an ejector, and discharge water of a first submersible pump 5 as a working fluid of the ejector is press-fitted to generate polluted water in a target water area. The action of sucking the water 20a from one side of the water flow generator 2 and ejecting it from the other side by the ejector action (FIG. 8)
Refer to). Due to this action of the water flow generation device 2, water movement (water flow) occurs in the target water area. In this way,
The ecological self-cleaning action can be activated by flowing water in the target water area.

When the water flow generator 2 is of an ejector type, water can be flowed many times as much as the amount of water supplied from the first submersible pump 5, and the purification efficiency of polluted water can be improved.

When the filter 12 is blocked by the contaminants captured by the filter 12, the air blow pump 18
Is operated to blow air bubbles 7a from the small holes 7B of the backwash blow pipe 7 to the filter or the contaminants, thereby separating the contaminants from the filter 12.

Subsequent to this operation, a second backwash contaminant discharge
The submerged pump 6 is operated to discharge the contaminants separated from the filter 12 and mixed with water in the filter section 4 to the planting and fertilizing equipment 19 on land through the backwash contaminant drainage pipe 15.

In the composite water purifying apparatus of this embodiment,
A power supply and a control device are provided for controlling the drive power supply of each drive motor of the submersible pumps 5, 6 and the air blow pump 18 and each drive motor in sequence, and the control device has a program control function. The above-described series of water purification operations can be automatically and continuously operated by an unmanned person.

The installation direction of the filter mounting frame 13 is as follows.
The filter may be in the longitudinal direction of the box body 11 (inhalation direction of the polluted water) or in a direction perpendicular thereto, and the filter may be a filter material such as plastic, charcoal, or ceramics.

Further, in order to improve the ecological self-cleaning effect, it is necessary to keep the filtration flow rate of the polluted water in the filter 12 low. In this embodiment, the flow capacity of the first submersible pump 5, the density of the filter medium of the filter 12, and the interval between the filter mounting frames 13 (permeability of the filter) can be adjusted according to the degree of contamination of the polluted water. , So that an optimum cleaning effect can be obtained.

[0032]

As described in detail above, according to the combined water purification apparatus of the present invention, the following effects and advantages can be obtained. (1) The self-cleaning action of natural water can be activated by the complex self-cleaning action combining the ecological self-cleaning action and the physical self-cleaning action. (2) By reusing the captured pollutants for land planting and fertilization, the overall natural environment including the surrounding land environment can be improved. (3) Water purification is not carried out in a short time by powerful physical means, but water purification is carried out slowly with minimum energy using the ecological self-cleaning action of lakes and ponds. Can be measured.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an installation state of a complex water purification apparatus as one embodiment of the present invention.

FIG. 2 is a perspective view of the suction filter box.

FIG. 3 is a perspective view of the filter section.

FIG. 4 is a perspective view of the backwash blow tube.

FIG. 5 is a side view of the pump section.

FIG. 6 is a front view of the pump partition.

FIG. 7 is a front view of another example of the pump partitioning plate.

FIG. 8 is a side sectional view of the water flow generator.

FIG. 9 is a schematic view of a conventional physical forced filtration type purification device.

FIG. 10 is a schematic view of the ultraviolet sterilization type purification device.

FIG. 11 is a schematic view of the underwater filter type purification device.

FIG. 12 is a schematic diagram of the water flow generation type purification device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction filter box 2 Water flow generator 3 Pump section 4 Filter section 5 First submersible pump for suction of polluted water and pumping of filtered water 6 Second submersible pump for discharge of backwash contaminants 7 Backwash blow pipe 8 Backwash blow Air bleeding pipe 9 Net 10 Box lid 11 Box body 12 Filter 13 Filter mounting frame 14 Filtration water pumping pipe (Discharge pipe of pump 5) 15 Backwash contaminant drain pipe (Discharge pipe of pump 6) 16 Pump partition plate 17 Water guide Opening 18 Air blow pump 19 Planting and fertilizing equipment 20 Target water area 20a Polluted water

Claims (4)

[Claims] 1. A pump section provided with a first submersible pump for sucking / filtrating polluted water and a pumping water for filtration water, and a polluted water suction port provided on one side and disposed so as to communicate with the pump section. Filter box having a filter section provided with a filter having good water permeability, and a water flow generating a water flow to generate a water flow in the target water area by operating the ejected water of the first submersible pump by press-fitting the discharge water of the first submersible pump. A combined water area purifying apparatus, comprising: a device; and an air blow pump capable of supplying air for backwashing to the filter. 2. The flow rate capacity of the first submersible pump and the permeability of the filter can be adjusted to adjust the filtration flow rate of the polluted water in the filter according to the pollutant degree of the polluted water. The combined water purification apparatus according to claim 1, wherein 3. A second submersible pump for discharging backwash contaminants is provided in the pump section in order to collect on the land the contaminants separated from the filter in the backwashing of the filter. The combined water purification apparatus according to claim 1. 4. The control device according to claim 3, further comprising a control device for sequentially operating the first submersible pump, the second submersible pump, and the air blow pump under a predetermined program. Complex water purification system.