JP2009240274A - Plankton concentration device and plankton concentration system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plankton concentration device and a plankton concentration system to efficiently collect planktons. <P>SOLUTION: The plankton concentration device comprises a concentration tank equipped with a water inlet port for introducing plankton-containing water, a net for filtering introduced water and collecting planktons, a fountain device for flushing planktons adhered to the net by jetting water to the filter from the back side of the filter for collecting the planktons, a concentrated sample storage tank for concentrating the wash out planktons, a plankton discharge port for discharging the concentrated planktons, a water outlet port for discharging water after filtering the planktons and water jetted from the fountain device and washed the net. The space in the concentration tank is divided by the net. The water inlet port and the plankton discharge port are installed to the concentration tank on the collection side of the net and the water outlet port is installed to the concentration tank on the back side of the net. The plankton concentration system is prepared by installing a computer to automatically control the concentration device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a plankton concentrator.

  When collecting plankton in seawater or lake water for survey purposes, water of the target depth is often collected using a plankton net. However, workers with specialized knowledge are required for collection, and it is not easy to collect plankton that meets the purpose. In addition, since it requires manpower, it is difficult to collect a large number of samples.

Therefore, the plankton can be collected by collecting the target water and concentrating and separating the plankton therefrom. At that time, for example, the plankton can be concentrated by filtering the target water using a net. If centrifugal force is utilized, it can also concentrate more efficiently (for example, refer patent document 1).
JP-A-5-172717

However, in the case of filtration using a net, plankton cannot be efficiently recovered because plankton remains in the net.
Then, this invention was made | formed for the purpose of providing the plankton concentration apparatus and plankton concentration system which can collect | recover plankton efficiently.

  A plankton concentrating device according to the present invention includes a water inlet for introducing water containing plankton, a net for filtering the introduced water and collecting plankton, and a back side of the collecting side for collecting the plankton A fountain device for discharging water to the net and washing the plankton adhering to the net, the water that has filtered the plankton, a water outlet for discharging the water released from the fountain device, A concentrated sample storage tank for collecting and concentrating the plankton collected, and a plankton discharge port for discharging the plankton collected in the concentrated sample storage tank, wherein the space in the concentration tank is the net And the water introduction port and the plankton discharge port are provided in the concentration tank on the collection side of the net. Wherein the water outlet in the concentration tank on the back of the bets is provided. This apparatus may be provided with a cleaning water discharge port for discharging the net cleaning water in the concentration tank on the net collection side. Moreover, you may provide the solenoid valve which controls opening and closing of the said water introduction port, the said plankton discharge port, a water discharge port, the said washing water discharge port, and a fountain apparatus. Further, a thermometer, a pH meter, an electrical conductivity measuring device, or a dissolved oxygen content measuring device may be provided.

  Furthermore, the plankton concentration system of the present invention includes any one of the above plankton concentration devices, and a control device that adjusts at least one of the water introduction port, the water discharge port, the plankton discharge port, and the fountain device.

  Furthermore, the method of using the plankton concentrator of the present invention includes a step of introducing water containing plankton from the water inlet, a step of filtering the introduced water through the net, and collecting plankton. The step of draining the plankton from the back side of the collection side where the plankton is collected by the fountain device, washing the plankton adhering to the net, the water obtained by filtering the plankton from the water outlet, and the fountain device A step of discharging the water released from the water, a step of collecting and concentrating the washed plankton in the concentrated sample storage tank, and a step of discharging the plankton collected in the concentrated sample storage tank from the plankton outlet. And including.

  Furthermore, the control program of the present invention is a control program for automatically operating a plankton concentrator, the step of introducing water containing plankton from the water inlet to a computer, and the introduction of the water introduced by the net. Filtering and collecting plankton; discharging the plankton from the back side of the collection side collecting the plankton by the fountain device; washing the plankton adhering to the net; and washing the plankton from the water outlet Discharging the filtered water, discharging the water released from the fountain device, collecting and concentrating the washed plankton in the concentrated sample reservoir, and collecting the plankton collected in the concentrated sample reservoir. And discharging from the plankton outletA storage medium storing this program in a computer-readable manner also belongs to the technical scope of the present invention.

    According to the present invention, it is possible to provide a plankton concentrating apparatus and a plankton concentrating system that can efficiently recover plankton.

  Hereinafter, a plankton concentrating device and a plankton concentrating system according to the present invention will be described in detail with reference to the drawings. The objects, features, advantages, and ideas of the present invention will be apparent to those skilled in the art from the description of the present specification, and those skilled in the art can easily reproduce the present invention from the description of the present specification. it can. The embodiments and specific examples of the invention described below show preferred embodiments of the present invention and are shown for illustration or explanation, and the present invention is not limited to them. It is not limited. It will be apparent to those skilled in the art that various modifications and variations can be made based on the description of the present specification within the spirit and scope of the present invention disclosed herein.

== Basic configuration of plankton concentrator ==
The plankton concentrating device according to the present invention will be described with reference to the device shown in FIG. The plankton concentrating device includes a concentrating tank 10 for concentrating plankton. The concentrating tank 10 includes a water inlet 12, a net 14, a fountain device 16, a concentrated sample storage tank 17, a plankton outlet 18, and a water outlet 20. A sample collecting device 24 and a washing water discharge port 26 are provided. The space in the concentration tank is divided by a net 14, and a water introduction port 12, a concentrated sample storage tank 17, a plankton discharge port 18, and a washing water discharge port 26 are provided in the concentration tank 10 on the collection side 30 of the net 14. A water discharge port 20 is provided in the concentration tank 10 on the back side 32 of the net 14. Hereinafter, each component will be described.

  The water inlet 12 is provided for introducing water containing plankton. The water to be introduced is not particularly limited, such as fresh water, seawater, lake water, etc., but it is preferable to filter with a filter (not shown) that barely passes plankton in advance in order to remove dust, etc. Such a filter may be provided at the water inlet 12. Moreover, it is preferable to provide a pump so that water can be easily introduced. A plurality of water inlets 12 may be provided.

  The net 14 is provided for filtering the water introduced from the water introduction port 12 and collecting plankton, and the space in the concentration tank 10 is divided into a collection side 30 for collecting plankton and a back side 32 thereof. Divide. This is because the plankton is filtered by the net 14 so that the plankton is collected on the collecting side 30 and the water on which the plankton is filtered is discharged on the back side 32. The net 14 is preferably configured to allow all water including plankton introduced from the water inlet 12 to pass therethrough. Thereby, plankton can be collected efficiently.

  The fountain device 16 may be any device as long as it is provided in the concentration tank on the back side 32 of the net 14 and can discharge water from the back side 32 of the net 14 to the net 14 to wash away plankton attached to the net 14. For example, an apparatus in which a head for spraying water can be rotated for efficient cleaning is not particularly limited. A plurality of fountain devices 16 may be provided.

  The concentrated sample storage tank 17 is a storage tank that is provided in the concentration tank 10 on the cleaning side 30 of the net 14 and collects and concentrates the plankton washed away by the water discharged from the fountain device 16. It is not limited. For example, the plankton may be recovered by providing a net removable from the outside in the upper part of the concentrated sample storage tank 17 and recovering the net or washing the net.

  The plankton discharge port 18 is provided in the concentration tank 10 on the washing side 30 of the net 14, and the configuration thereof is not particularly limited as long as the plankton water stored in the concentrated sample storage tank 17 can be efficiently discharged.

  The water discharge port 20 is provided in the concentration tank on the back side 32 of the net 14, from which the plankton is filtered and discharged from the fountain device 16 and discharged. A plurality of water discharge ports 20 may be provided.

  The sample collection device 24 samples the plankton concentrate discharged from the plankton discharge port 18 into the sample bottle 26. For example, a device such as a fraction collector that automatically supplies a new sampling and concentration tank at regular intervals may be used. When it is necessary to fix the sample, a fixing solution such as formalin may be put in the sample bottle 26 in advance.

== Other configuration of plankton concentrator ==
A part of the concentration tank 10 may be made of glass, acrylic, or the like, and by measuring the light transmittance there, an indication of the plankton concentration can be obtained. Whether to introduce water containing plankton from the water inlet 12 may be determined based on the numerical value.

  The cleaning water discharge port 26 is provided in the concentration tank 10 on the collection side 30 of the net 14 in order to discharge the net cleaning water that has cleaned the net after collecting plankton from the concentrated sample storage tank 17. However, the plankton discharge port 18 may be used for discharging the cleaning liquid without providing the cleaning water discharge port 26. In that case, a large-capacity cleaning liquid receiving / concentrating tank (not shown) for discharging the cleaning liquid is provided to receive the cleaning liquid instead of the sample bottle 26.

  It is preferable that the plankton discharge port 18, the water discharge port 20, and the washing water discharge port 26 are provided with an electromagnetic valve so that the flow of water can be adjusted.

  In addition to these devices, for example, devices such as watches, thermometers, pH meters, electrical conductivity measuring devices, dissolved oxygen amount measuring devices, chlorophyll a concentration measuring devices, and the like that can measure water quality of various places may be provided. Good.

== Plankton enrichment method ==
An example of a concentration method using the concentration device configured as described above will be described below.

  First, the plankton discharge port 18, the water discharge port 20, and the wash water discharge port 26 are closed, and water containing plankton is introduced into the concentration tank using a pump provided at the water introduction port 12. When the concentration tank 10 is filled with the introduced water, when the water discharge port 20 is opened and the water in the concentration tank 10 is discharged, the water is reduced and the water is filtered through the net, and the plankton is collected in the net 14. Is done. When a predetermined amount of water is introduced, the introduction of water from the water inlet 12 is stopped.

  When most of the water in the concentration tank 10 is discharged, water is sprayed from the fountain device 16 toward the net, and the plankton collected in the net is washed away. Plankton falls along the net and accumulates in the concentrated sample reservoir 17, while the sprayed water passes through the net and falls to the back side 32 of the net 14 and is discharged from the water outlet 20. Thus, plankton is concentrated and accumulated in the concentrated sample storage tank 17. This net 14 cleaning step can prevent clogging of the net 14 and allows more water to flow into the concentration tank 10, so that the plankton concentration rate can be increased.

  Thereafter, the valve of the plankton discharge port 18 is opened, and the water in which the plankton is concentrated is collected in the sample bottle 26 of the sample collection device 24.

  When the plankton has been collected, the plankton discharge port 18 is closed and the cleaning water discharge port 26 is opened. Water is sprayed from the fountain device 16 toward the net to wash away plankton and dust remaining on the net. By this backwashing, clogging of the net 14 can be prevented. When the inside of the concentration tank 10 becomes clean, the spraying is stopped. When the water has run out, all the valves are closed, the sample bottle 26 is replaced with a new bottle, and the next sample is prepared.

== Automatic plankton concentration system ==
If the above plankton concentrators, in particular the water inlet 12, the fountain device 16, the plankton outlet 18, the water outlet 20, etc. are controlled by a computer that is a control device, the plankton is collected from seawater and lake water. It is preferable in that it can automate sampling of water in which plankton is concentrated and inspection of water quality. Therefore, an automatic plankton concentrating system is constituted by a plankton concentrating device and a computer controlling the device.

  The computer may also adjust other devices of the plankton concentration system, such as controlling the sampling device 24 to adjust sampling.

  Note that a program that causes a computer to automatically perform the plankton concentration method and a storage medium that stores the program also belong to the technical scope of the present invention.

It is a mimetic diagram showing the whole picture of the plankton concentration device of one embodiment by the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Concentration tank 12 Water inlet 14 Net 16 Fountain device 17 Concentrated sample storage tank 18 Plankton outlet 20 Water outlet 24 Sample collection device 26 Washing water outlet 30 Collection side (concentration tank)
32 Back side (concentration tank)

Claims (9)

A water inlet for introducing water containing plankton;
A net for filtering the introduced water and collecting plankton;
A fountain device for discharging water to the net from the back side of the collection side for collecting the plankton, and for washing away the plankton attached to the net,
The water obtained by filtering the plankton, and a water outlet for discharging the water discharged from the fountain device;
A concentrated sample storage tank for collecting and concentrating the washed-out plankton;
A plankton outlet for discharging the plankton collected in the concentrated sample storage tank;
Equipped with a concentration tank with
The space in the concentration tank is divided by the net, the concentration tank on the net collection side is provided with the water inlet, the concentrated sample storage tank, and the plankton discharge port, and the concentration tank on the back side of the net The plankton concentrating device, wherein the water discharge port is provided.   The plankton concentrating device according to claim 1, further comprising an electromagnetic valve that controls opening and closing of the water introduction port, the plankton discharge port, the water discharge port, and the fountain device.   The plankton concentrating device according to claim 1 or 2, wherein a cleaning water discharge port for discharging the net cleaning water is provided in the concentration tank on the net collection side.   The plankton concentrating device according to claim 3, further comprising an electromagnetic valve that controls opening and closing of the washing water discharge port.   The plankton concentrating device according to any one of claims 1 to 4, further comprising a thermometer, a pH meter, an electric conductivity measuring device, or a dissolved oxygen content measuring device. Plankton concentrating device according to any one of claims 1 to 5,
A control device for adjusting at least one of the water inlet, the water outlet, the plankton outlet, and a fountain device;
Plankton enrichment system. A method of using the plankton concentrator according to claim 1,
Introducing water containing plankton from the water inlet;
Filtering the introduced water through the net and collecting plankton;
Water is discharged into the net from the back side of the collecting side for collecting the plankton with the fountain device, and the plankton attached to the net is washed away;
From the water outlet, the step of filtering the plankton and the step of discharging the water released from the fountain device;
Collecting and concentrating the washed plankton in the concentrated sample reservoir;
Discharging the plankton collected in the concentrated sample storage tank from the plankton outlet;
Including usage. A control program for automatically operating the plankton concentrator according to claim 1, comprising:
Introducing water containing plankton from the water inlet;
Filtering the introduced water through the net and collecting plankton;
Water is discharged to the net from the back side of the collection side for collecting the plankton with the fountain apparatus, and the plankton attached to the net is washed away;
Discharging the water from the water discharge port and filtering the plankton, and discharging the water released from the fountain device;
Collecting and concentrating the washed plankton in the concentrated sample reservoir;
Discharging the plankton collected in the concentrated sample storage tank from the plankton outlet;
Control program to execute     A storage medium storing the program according to claim 8 so as to be readable by a computer.

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