JPH06114393A - Pond water purifying device - Google Patents

Abstract

PURPOSE:To certainly prevent the generation of algae and to reduce the effect of algae on environment by controlling a circulating pump and a silver ion/ copper ion generator on the basis of the signals from a sensor detecting the conductivity or turbidity of pond water and a flowmeter. CONSTITUTION:A sensor 29 detecting the conductivity or turbidity of pond water is arranged in the vicinity of a pond water introducing port 2 and a controller 31 controlling the circulating pump 15 and a silver ion/copper ion generator 25 on the basis of the signals from the sensor 29 and a flowmeter 19 is provided. At first, algae in the introduced pond water are killed by an ultraviolet irradiation device 21 and, subsequently, silver and copper ions are eluted from the generator 25 and the detection data due to the sensor 29 is sent to the controller 31 to confirm the algicidal effect in pond water and the electrolytic capacity of the silver ion/copper ion generator 25 is controlled to certainly prevent the generation of algae in pond water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purification device for pond water, and more particularly to a purification device for preventing the generation of algae in an artificial pond for hydrophilic or landscape.

[0002]

2. Description of the Related Art In artificial ponds for hydrophilic or scenic areas, pollution occurs due to inflow of rainwater and fertilizers scattered around, and a landscape problem occurs due to generation of algae.

Therefore, conventionally, in order to prevent the generation of algae, for example, a method of injecting copper ions into pond water to kill algae, a method of injecting chlorine ions into pond water to kill algae, There is known a method of killing algae by passing it through a reaction tank that generates ozone.

[0004]

However, the algae killing method using copper ions is not very effective unless a large amount of copper ions are injected. Moreover, this method has a problem that acute copper poisoning occurs when the amount of copper ion implantation is large.

In the algae killing method using chloride ion, the algae killing can be performed completely depending on the injection concentration, but it is transient and there is a problem in sustaining the effect. In addition, this method has a problem of causing chlorine odor and corrosive chlorine gas.

The method using ozone can completely kill algae in the reaction tank, but has a problem in the sustainability of the effect. Moreover,
This method has a problem of ozone odor. still,
A method is known in which sand is filtered after catalytically oxidizing pond water, but this method does not have an algae killing effect and cannot be dealt with.

As described above, according to the conventional purification method, the generation of algae cannot be reliably prevented, and there are problems such as a great influence on the environment. Therefore, a purification apparatus having high purification performance is required. Long-awaited.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pond water purification device that surely prevents the generation of algae and reduces the influence on the environment. is there.

[0009]

A pond water purification device according to a first aspect of the present invention comprises a pond water introduction flow path, a circulation pump connected to the pond water introduction flow path, and a treatment flow path provided on the discharge side of the circulation pump. , A flowmeter, an ultraviolet irradiation device, a filter, and a silver ion / copper ion generator that are sequentially provided in the treatment flow path toward the downstream side, and treated water provided downstream of the silver ion / copper ion generator. Based on the signal from this sensor and the flow meter, a derivation flow path that returns the pond to the pond, a sensor that is arranged in the pond water near the pond water introduction port of the pond water introduction flow path, and that detects the conductivity or turbidity of the pond water. And a controller for controlling the silver ion / copper ion generator.

A pond water purifying apparatus according to a second aspect of the present invention is a pond water introduction flow path, a circulation pump connected to the pond water introduction flow path, a processing flow path provided on the discharge side of the circulation pump, and the processing flow path. A flow meter, an ultraviolet irradiation device, a filter, and a silver ion / copper ion generator that are sequentially provided toward the downstream side, and a discharge flow that returns the treated water to the pond that is provided on the downstream side of the silver ion / copper ion generator. A passage, a sensor arranged in the pond water near the pond water introduction port of the pond water introduction flow passage to detect electric conductivity or turbidity of the pond water and water temperature, and a circulation pump based on a signal from the sensor and the flow meter. And a controller for controlling the silver ion / copper ion generator.

[0011]

In the pond water purifying apparatus according to the first aspect, the pond water is introduced from the pond water introduction port to the pond water introduction flow path by the circulation pump, flows down the treatment flow path, the flow rate is measured by the flow meter, and the signal is Input to the controller.

Based on the signal from the flow meter, a control command is sent from the controller so that the circulation pump maintains a predetermined rotation speed. The pond water that has passed through the flow meter is irradiated with ultraviolet rays by an ultraviolet ray irradiation device and sterilized.

Thereafter, after the algae sterilized by the filter are removed, the treated water passes through a silver ion / copper ion generator,
Here, silver ions and copper ions are eluted so that the algicidal effect can be maintained.

The treated water in which the silver ions and copper ions are eluted in this way is returned to the pond from the outlet flow path. The sensor installed in the pond water near the pond water introduction of the pond water introduction channel to detect the conductivity or turbidity of the pond water constantly detects the concentration of silver ions and copper ions in the pond water or the turbidity of algae and When the value is exceeded or dropped, the signal is input to the controller.

Based on the signal from this sensor, the controller sends a control command to the silver ion / copper ion generator to decrease or increase the elution amount of silver ion / copper ion.

In the pond water purifying apparatus according to claim 2,
Further, when the water temperature sensor detects that the water temperature is 10 ° C. or lower, the controller lowers the rotation speed of the circulation pump based on the command to delay the circulation of the pond water.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which the present invention is applied to a purifying device for preventing the generation of algae in an artificial pond for hydrophilic or landscape.

In FIG. 1, reference numeral 1 denotes a hydrophilic or landscape artificial pond. In this embodiment, a pond water inlet 2 is provided at one end of the artificial pond 1 and a treated water outlet 3 is provided at the other end. It is desirable that the pond water inlet 2 and the treated water outlet 3 have a positional relationship that is the farthest from the artificial pond 1.

A pond water introducing passage 10 is connected to the pond water introducing port 2. A circulation pump 15 is connected to the pond water introduction flow path 10 via a strainer 13.

A processing flow path 17 is connected to the discharge side of the circulation pump 15. A flowmeter 19, an ultraviolet irradiation device 21, a filter 2 are provided in the processing flow path 17 toward the downstream side.
3 and a copper ion / silver ion generator 25 are sequentially provided.

As shown in FIG. 2, the ultraviolet irradiation device 21 includes an ultraviolet lamp 211 arranged in a case 212 through a predetermined space and a cover 213 covering the case 212.
And a lighting device 21 for supplying electric power to the ultraviolet lamp 211
It is composed of 4 and.

The ultraviolet ray irradiating device 21 is configured to immerse the case 212 in the processing flow path 17 so that the treated water can be irradiated with ultraviolet rays. As shown in FIG. 3, the copper ion / silver ion generator 25 is composed of an anode rod 251 made of an alloy of silver and copper, and a cylindrical cathode 252 surrounding the anode rod 251. .

In this copper ion / silver ion generator 25, copper ions and silver ions are eluted into the treated water by electrolysis. A discharge flow path 27 that returns the treated water to the artificial pond 1 is connected to the downstream side of the copper ion / silver ion generator 25.

The outlet channel 27 is connected to the treated water outlet 3. In the pond water near the pond water introduction port 2 of the pond water introduction passage 10, a sensor 29 for detecting the electric conductivity or turbidity of the pond water is arranged.

A controller 31 for controlling the circulation pump 15 and the silver ion / copper ion generator 25 based on signals from the sensor 29 and the flow meter 19 is provided.
In the pond water purifying apparatus according to the present embodiment configured as described above, the pond water of the artificial pond 1 is pumped from the pond water introduction port 2 by the strainer 13, and then introduced into the pond water introduction flow path 10 by the circulation pump 15, The flow rate is measured by the flow meter 19 flowing down through the processing flow path 17, and the signal is input to the controller 31.

Based on the signal from the flow meter 19, a control command is sent from the controller 31 so that the circulation pump 15 maintains a predetermined rotation speed. The pond water that has passed through the flow meter 19 is irradiated with the ultraviolet light emitted from the ultraviolet lamp 211 through the case 212 in the ultraviolet irradiation device 21.

By this ultraviolet irradiation, algae in the pond water are sterilized. Then, the algae sterilized by the filter 23 are removed. Next, the treated water that has been killed by the algae passes through the silver ion / copper ion generator 25, where silver ions and copper ions are added. The silver ion and the copper ion enable the algicidal effect to be sustained.

The treated water in which the silver ions and the copper ions are thus eluted is returned to the artificial pond 1 from the treated water outlet 3 through the outlet passage 27. The treated water returned to the artificial pond 1 flows toward the pond water inlet 2. At this time, silver ions and copper ions in the treated water are taken into the algae in the artificial pond 1 to kill the algae.

On the other hand, in the pond water flowing in this way, the concentration of silver ions and copper ions dissolved therein is arranged in the pond water near the pond water introduction port 2 of the pond water introduction passage 10 It is constantly detected by the sensor 29 which detects the conductivity or the turbidity of algae, and when it exceeds or falls below a predetermined value, the signal is input to the controller 31.

Based on the signal from the sensor 19, the controller 31 sends a control command to the silver ion / copper ion generator 25 to decrease or increase the elution amount of silver ion / copper ion.

As a result, in the silver ion / copper ion generator 25, when the concentration of silver ion and copper ion exceeds a predetermined value, the silver ion / copper ion generator 2
If the voltage of No. 5 is decreased to decrease the amount of generation, or if the voltage is temporarily stopped and conversely the concentration of silver ions and copper ions is below a predetermined value, a silver ion / copper ion generator It is controlled so as to increase the voltage of 25 to increase the generation amount.

As described above, according to this embodiment, the introduced pond water is first algae killed by the ultraviolet irradiation device 21, and then the algae killed and the solids in the pond water are removed by the filter 23, and In addition, the silver ions and copper ions necessary for algae killing are eluted from the silver ion / copper ion generator 25, and the conductivity of silver ions and copper ions in the pond water or the turbidity of algae is constantly maintained in the vicinity of the pond water inlet 2. Detecting and confirming the algicidal effect in the pond water, if the conductivity or turbidity is high or the turbidity of algae is low, a silver ion / copper ion generator 2
When the electrolysis capacity of No. 5 is weakened, and conversely, when the conductivity is low or the turbidity of algae is high, the electrolysis capacity of the silver ion / copper ion generator 25 is enhanced to prevent the generation of algae in the pond water. Can be prevented.

Further, in this embodiment, since the silver ions and the copper ions necessary for algae killing are added after the pond water is sterilized by ultraviolet irradiation, the addition amount of metal ions can be suppressed.

Therefore, discoloration of the bottom and wall of the artificial pond 1 is unlikely to occur. In particular, by adjusting the concentration of metal ions required for algae killing by combining silver ions and copper ions,
It is possible to reduce the amount to about 1/5 as compared with the case of using copper ions alone.

Therefore, there is no possibility of causing a problem such as acute copper poisoning which may occur at the time of algal killing by copper ions. FIG. 4 shows a modified example of the silver ion / copper ion generator 25, in which a silver plate 253 and a copper plate 254 are arranged on the anode side and a rod member 255 is formed on the cathode side.

In this case, silver ions and copper ions are eluted from the silver plate 253 and the copper plate 254, respectively.
Further, in the above-mentioned embodiment, the sensor 29 is described as a sensor for detecting the electric conductivity or the turbidity. However, when the sensor 29 is used in combination with the sensor for detecting the water temperature, the water temperature is 10 ° C. or lower. When it is detected, the controller 31 lowers the rotation speed of the circulation pump 15 based on the command, and delays the circulation of the pond water so that the number of circulation turns of the pond water is 1 turn / day, for example. To do.

As a result, the reproductive performance of algae deteriorates when the pond water temperature is 10 ° C. or less, so that the algae killing effect can be more reliably ensured and the elution amount of silver ions and copper ions can be suppressed. It becomes possible to drive.

In the above embodiment, it is set to operate when the pond water temperature becomes 10 ° C. or lower, but if it is set to be much lower than 10 ° C., the generation of algae can be suppressed more effectively. It becomes possible.

[0039]

As described above, according to the first aspect, the introduced pond water is sent to the treatment flow path by the circulation pump, where the algae are first killed by the ultraviolet irradiation device, and then the algae killed and the pond water are killed. The solids, etc. are removed with a filter, and then the silver and copper ions necessary for algae killing are eluted from the silver ion / copper ion generator, and the silver and copper ions in the pond water are always kept near the pond water inlet. The electrical conductivity or turbidity of is detected by a sensor, this detection data is sent to the controller, the algae killing effect in the pond water is confirmed, and in the controller, if the electrical conductivity is high or the turbidity is low, Sends a command to weaken or stop the electrolysis capacity of the silver ion / copper ion generator. Conversely, if the conductivity is low or the turbidity is high, the electrolysis capacity of the silver ion / copper ion generator is changed. strength That by a letter command, it is possible to reliably prevent the occurrence of algal pond water transparency of the pond water is improved as compared with the prior art.

In particular, in claim 1, the concentration of metal ions required for algae killing is adjusted by the combination of silver ions and copper ions. It will be possible.

Therefore, discoloration of the bottom and wall of the pond is unlikely to occur. Further, in the first aspect, since the sensor for detecting the metal ion concentration is provided in the vicinity of the pond water inlet, it is possible to surely confirm the algicidal effect of the silver ions and the copper ions added to the pond water. Therefore, the amount of copper ions added was not increased unnecessarily, and there was no fear of causing problems such as acute copper poisoning that might occur during algae killing.

According to the second aspect, in addition to the effect of the first aspect, the pond water temperature is detected. Therefore, in the case of a water temperature that suppresses the generation of algae, by suppressing the circulation amount by the circulation pump, silver ion and The algicidal effect of copper ions can be further enhanced.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a pond water purification device according to claim 1.

FIG. 2 is an explanatory view showing the ultraviolet irradiation device in FIG.

3 is a perspective view showing a configuration of a silver ion / copper ion generator in FIG. 1. FIG.

FIG. 4 is a perspective view showing the configuration of the silver ion / copper ion generator in FIG.

[Explanation of symbols]

 1 Artificial Pond (Pond) 2 Pond Water Inlet 3 Treated Water Outlet 10 Pond Water Inlet Channel 15 Circulation Pump 17 Treatment Channel 19 Flowmeter 21 Ultraviolet Irradiator 23 Filter 25 Copper Ion / Silver Ion Generator 27 Outlet Channel 29 Sensor 31 Controller

Claims (2)

[Claims] 1. A pond water introduction flow path, a circulation pump connected to the pond water introduction flow path, a processing flow path provided on the discharge side of the circulation pump, and a processing flow path sequentially provided on the downstream side of the processing flow path. A flow meter, an ultraviolet irradiation device, a filter, and a silver ion / copper ion generator, and an outlet flow path for returning the treated water to the pond downstream of the silver ion / copper ion generator, and the pond water introduction flow path A sensor installed in the pond water near the pond water inlet to detect electric conductivity or turbidity in the pond water, and controls the circulation pump and the silver ion / copper ion generator based on signals from this sensor and the flow meter. A pond water purification device comprising a controller. 2. A pond water introduction flow path, a circulation pump connected to the pond water introduction flow path, a processing flow path provided on a discharge side of the circulation pump, and a processing flow path which is sequentially provided on a downstream side of the processing flow path. A flow meter, an ultraviolet irradiation device, a filter, and a silver ion / copper ion generator, and an outlet flow path for returning the treated water to the pond downstream of the silver ion / copper ion generator, and the pond water introduction flow path A sensor installed in the pond water near the pond water inlet to detect the electric conductivity or turbidity of the pond water and the water temperature, and a circulation pump and a silver ion / copper ion generator based on signals from this sensor and the flow meter. A pond water purification device comprising a controller for controlling.