JPS6012921A - Red tide exterminating apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention aims to completely eliminate the red tide by killing the red tide that has occurred.
Or it relates to a device that prevents the expansion of areas where red tide occurs.

[Background of the invention]

Red tide is a phenomenon in which plankton such as red sulfur bacteria, diatoms, noctiluces, and flagella caterpillars temporarily and rapidly multiply, resulting in the seawater turning red.It causes great damage to fish and shellfish, so fishermen in the inner bay are advised not to is feared from

The causes of red tide damage include a mechanical failure theory that plankton causes mechanical damage by clogging Kk, a chemical poison production theory that plankton secretes harmful substances, and a theory that the plankton causes mechanical damage due to the death and decomposition of plankton. There is an oxygen deficiency theory that states that a huge amount of oxygen is consumed, leading to a complete lack of oxygen, but this is still at the research stage and there is no established theory.

As a countermeasure against red tide, there is a method of spraying copper sulfate into the sea at the beginning of a red tide outbreak to kill plankton and suppress the spread of red tide, but spraying more copper sulfate than necessary It is also harmful to seafood and is undesirable from a pollution prevention perspective. Currently, no effective means have been found to kill red tide or to suppress the spread of red tide.

[Purpose of the invention]

The present invention was made in view of the above-mentioned conventional problems, and its purpose is to provide a device that is effective in completely eradicating red tide that has occurred and suppressing the expansion of red tide without affecting fish and shellfish. It is in.

[Summary of the invention]

The red tide killing device according to the present invention is characterized in that a cathode body and an anode body are arranged facing each other under the sea surface near the sea surface via a floating body, and the sea water around the anode is acidified by electrolysis using sea water as a medium, The above objective is achieved by completely killing red tide plankton.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail based on the drawings.

FIG. 1 shows a first embodiment of the present invention.

In FIG. 1, a red tide killing device 1 according to the present invention includes a floating body 4 towed by a ship 2 and sailing on the ocean, and a guide 1 provided at the bottom of the tip of the floating body 4. a wire mesh group 8 provided at the rear of the plate 6 at the bottom of the floating body 4; and a plate 6 installed inside the floating body 4 with the cathode side facing the plate 6.
A DC power source l connected to the wire mesh group 8 with its anode side connected to
It is composed of O.

The wire mesh group 8 includes wire meshes 8A, 8B, 8C, which are arranged in parallel in the longitudinal direction of the floating body (in the direction of the arrow in FIG. 1) at a predetermined distance apart.
Each wire mesh is arranged with its mesh surface facing the plate 6 serving as a cathode, and support frames 12A and 12BK made of an insulating material extend at the upper and lower ends in the longitudinal direction of the floating body, respectively. installed.

The support frame 12A is fixed to the bottom of the floating body 4, and the support frame 12A is fixed to the bottom of the floating body 4.
The tip of B extends forward and supports the lower end of a plate 6 fixed to the bottom of the tip of the floating body 4.

The wire mesh group 8 serves as an anode, and since the metal that makes up each wire mesh gradually dissolves into the seawater, it is preferable that the wire mesh is made of soft steel that can be supplied at low cost, and supports the wire mesh group 8. It is desirable that the integral parts fixed to the frames 12A and 12B be detachably attached to the floating body 4 using fixing means such as bolts and nuts.

The current from the DC power supply 10 is adjusted to have a current density of l m A /cr1 or more with respect to the surface area of the wire mesh serving as the anode. At 1 mA/m or less, C1 occurs in the wire mesh group!
This is because the amount of 2.02 is too small to kill all plankton.

To use the red tide killing device 1 according to this embodiment, first the floating body 4 is towed to a sea area where red tide is occurring. Since seawater can pass through each wire mesh in the wire mesh group 8, water flow resistance during towing does not pose much of a problem.

Next, the plate body 6 is made into a cathode by the DC power supply 10.

A current tube is passed through the wire mesh group as an anode. In this condition, the ship will be towed throughout the red tide area.

Metal from the anode side wire mesh group 8 dissolves into the sea as metal ions. Ch gas and 02 gas are generated in the wire mesh group 8 on the anode side, and the seawater in the wire mesh group 8-1 and 9 becomes acidic.

Since the floating body 4 is towed by the ship 2 and navigates through the red tide area,
Plankton is contained in each wire mesh 8A, 8 that constitutes the wire mesh group 8.
They pass through the meshes of B, 8C, etc., but at this time, they die by coming into contact with the CQ2 gas generated around the meshes and the acidified seawater.

Note that the acidified seawater is diluted and oxidized behind the wire mesh group 8, so there is no risk of affecting seafood.

According to this embodiment, it is possible to kill red tide plankton, eliminate red tide, and suppress the spread of red tide.

2 and 3 illustrate a second embodiment of the invention.

In FIGS. 2 and 3, the floating body 4 is constructed in the shape of a double-headed boat, and a plate body 6 serving as a cathode and a plate body 6 serving as a cathode are connected to the anode through support frames 12A and 12B between the left and right floating bodies 4A and 4B. A certain wire mesh group 8 is arranged. The other parts are the same as those in the first embodiment, and the explanation thereof will be omitted by giving the same reference numerals.

In this second embodiment, since the upper end of the wire mesh group 8 can be made to coincide with the sea surface, it is more effective in killing red tide plankton near the sea surface.

FIGS. 4 and 5 show a third embodiment of the present invention. 4 and 5, a thin plate group 18 is provided between the left and right floating bodies 4A, 4B in place of the wire mesh group 8 in the second embodiment.

This thin plate group 18 is arranged parallel to the buttock line of the thin plates 18A, 18B, . Numerous holes 2 to reduce weight and reduce weight
0 is provided.

If other parts are the same as those in the second embodiment, the description thereof will be omitted by assigning the same reference numerals.

In addition to the same effects as the second embodiment, this third embodiment has the effect of reducing the fluid resistance when the floating body 4 is towed.

In each of the first to third embodiments, the red tide is killed by being towed by another vessel through the sea area where red tide occurs, but the red tide is killed by appropriate mooring means such as anchoring and mooring. The entire device may be moored at a predetermined position and all tidal currents may be used to kill red tide. For example, by mooring at the entrance of a port or mooring around the aquaculture area, it is possible to prevent the spread of red tide into a constant temperature area.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it is possible to kill red tide or prevent the spread of red tide without harming other fish and shellfish.

[Brief explanation of the drawing]

1 is a partial sectional view of a first embodiment of the present invention, FIG. 2 is a side view of a second embodiment of the present invention, and FIG. 3 is a line I shown in FIG. 2.
4 is a side view of the third embodiment of the present invention, and FIG. 5 is a sectional view taken along the line ■--■ shown in FIG. 4. 1... Red tide killing device according to the present invention, 4... Floating body,
6...Plate serving as a cathode, 8...Group of wire mesh serving as an anode,
10...DC power supply. Agent Tatsuyuki Unuma (and 1 other person) Figure 1 Figure 2 0 6th Figure 3 28 Figure 4 0 Figure 5

Claims (1)

[Scope of Claims] (Li) A cathode body is fixed to the tip of a floating body towed by a ship, an anode body is provided behind the cathode body, and each of the Yin and Yang specimens is positioned below the sea surface and in the vicinity of the sea surface. (2) The anode body is arranged with a mesh surface facing the cathode body, and is composed of wire meshes arranged in parallel in the front-back direction of the floating body.Features: The red tide killing device according to claim 1. (3) The anode body is arranged in parallel to the buttock line and is composed of porous thin plates arranged in parallel in the width direction of the floating body. A red tide killing device according to claim 1, characterized in that the floating body is a double-headed body, as claimed in any one of claims 1 to 3. Red tide killing device.