JPH10492A - Purification device for deep water in lake and marsh - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of purifying deep water in lakes and marshes and a dam or the like by utilizing sunlight. SOLUTION: A condenser A is provided near 9 lakes and marshes and a dam or the like and the terminal of an optical fiber cable C is faced in the reflection focus F part of the reflector 1 of the condenser A. Other end of the optical fiber cable C is introduced into lakes and marshes and the tip thereof is faced in the light source part L of the reflector 2 of a projector B provided underwater. The underwater part is irradiated with converged sunlight and algae are propagated in the deep part. Oxygen is supplied by carbon dioxide assimilation and deep water is purified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying water by irradiating sunlight to a deep part of a lake, a marsh, a dam or the like, where sunlight does not reach, to proliferate aquatic plants and the like, supplying oxygen by its carbon assimilation, and purifying water. It is intended.

[0002]

2. Description of the Related Art Heretofore, as a water purifying apparatus and a purifying method of this kind, a method of agitating or circulating water with a large-sized pump to aerate the water, and a method of sucking up water to separate and remove water moss and the like are known. ing.

[0003]

However, in the prior art as described above, a pump and a filtration device are required to move water and to filter and separate blue-green algae, and the initial cost and the running cost are high. .

[0004]

SUMMARY OF THE INVENTION The present invention is characterized by using infinite solar energy as energy for purification.
A concentrator is installed near a lake, etc., and the base end of the optical fiber cable faces the reflection focal point of the reflector of the concentrator. Is exposed to the light source of the reflector of the floodlight placed underwater.

[0005] The above-mentioned light collector installed on land and the light projector installed underwater may be paired. However, considering light emission over a wide range in water, it is effective to disperse and arrange a plurality of underwater light emitters. That is, it is relatively easy to install a large light concentrator on land, but it is difficult to install a large light projector in water, and light permeability is poor in water.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus according to the present invention is constructed as described above, and illuminates a base end of an optical fiber cable with sunlight collected by a light concentrator. To the light source and dispersed by the reflector of the projector to irradiate the water.

That is, the upper end of the optical fiber cable is illuminated with the sunlight collected by the light collector, and the light transmitted by the optical fiber cable is emitted by the light source portion of the light projector.
It is scattered by the reflector of the floodlight to illuminate deep water. The sunlight sent in this way irradiates the deep water, makes the plants and the like in the layer part prosper, and causes carbonic acid assimilation. It purifies the water.

As is clear from the above description, according to the present invention, if the above-described apparatus is installed, the subsequent operation for purification uses infinite solar energy, so that no driving energy is required. In addition, as the operating cost, only the maintenance and management cost of the light collector, the light projector, and the like is sufficient. The light collecting and projecting device can be freely fixed or movable. Hereinafter, the present invention will be specifically described with reference to the drawings.

[0009]

FIG. 1 schematically shows an example of installation of an apparatus according to the present invention. In FIG. 1, reference numeral A denotes a light collector installed near a lake or the like, and B denotes a floodlight installed underwater such as a lake or the like. , C are optical fiber cables disposed between the light collector A and the light projector B.

The base end of the optical fiber cable C faces the focal point F of the reflector 1 of the condenser A, and the other end faces the light source L of the reflector 2 of the projector B by being introduced into a lake. There is not. FIGS. 2 to 4 show the light condensing method of the light collector A. In FIG.
a is provided to illuminate the base end of the optical fiber cable C with the collected light. In FIG. 3, the reflected light is condensed by using a convex lens 1b, and in FIG. 4, the base end of the optical fiber cable C is directly illuminated by the condensing by the reflecting mirror 1.

Next, FIGS. 5 to 7 show various light projecting forms of the light projecting device B. In FIG. 5, a sub-reflecting mirror 2a is provided in a light source section of the reflecting mirror 2 and an optical fiber cable C is used. The transmitted light is directed toward the reflecting mirror 2 to irradiate underwater. In FIG. 6, a concave lens 2b is used, and in FIG. 7, the light emission at the tip of the optical fiber cable C is directly applied to the reflecting mirror 2 to illuminate the water.

Further, in the light collector A and the light projector B shown in FIGS. 8 and 9, a glass cover 3 for protecting the reflecting mirrors 1 and 2 is provided with a wiper 4. Reference numeral 5 denotes the drive motor, and the drive current may use a solar cell.

The apparatus according to the present invention is constructed as described above. The sunlight condensed by the concentrator A is sent to the projector B by the optical fiber cable C, and diffused by the reflecting mirror 2 of the projector B. To irradiate deep water. By this irradiation, phytoplankton and aquatic plants thrive in the deep water, oxygen is supplied to the deep water by carbon assimilation and the like, and the deep water can be purified.

That is, in deep water such as lakes and marshes, sunlight does not reach, and especially in places where water does not flow due to stagnant water such as lakes and marshes, water rots rapidly due to lack of oxygen and the like. By irradiating such sites with sunlight, the aquatic plants thrive and regenerate oxygen, purify sewage by the same action as conventional aeration, and stagnant deep water decays. Can be prevented.

In particular, according to the present invention, since infinite sunlight is used for purification as described above, once installed, the maintenance cost is almost zero only after maintenance and the operation cost is almost zero. It is also very simple to prevent fogging of the light collector and the light projector. In addition, since natural sunlight is used, there is no possibility of secondary pollution.

[0016] In the implementation, lakes and marshes having a large amount of stored water are also subject to purification.
As shown in FIG. 10, a plurality of light projectors are arranged for a large light collector that is easy to construct, and these light projectors are arranged in a dispersed manner. It is advantageous. In this case, since the sunlight is sent through a flexible optical fiber cable, it can be freely installed at a desired place.

[0017]

As described above, the purification apparatus according to the present invention utilizes infinite solar energy for purification. Therefore, if the apparatus is installed, only maintenance and management of the apparatus is required as a running cost. Since it is natural energy called light, it can be said that there is no secondary pollution as compared with conventional devices and methods, and it is extremely useful in water purification. In addition, since a flexible optical fiber cable is used for the light transmitting means, the projector can be easily installed at a desired place.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a state in which a purification device according to the present invention is installed.

FIG. 2 is a schematic side view of a light collector of the purification device according to the present invention.

FIG. 3 is a schematic side view of another embodiment of the light collector.

FIG. 4 is a schematic side view of another embodiment of the light collector.

FIG. 5 is a schematic side view of the projector.

FIG. 6 is a schematic side view of another embodiment of the light projector.

FIG. 7 is a schematic side view of another embodiment of the light projector.

FIG. 8 is a schematic side view of the light collector in the installed state.

FIG. 9 is a schematic side view of the projector in an installed state.

FIG. 10 is a plan view showing an example of the arrangement of a light collector and a light projector.

[Explanation of symbols]

 A Condenser B Projector C Optical fiber cable F Focus L Light source 1,2 Reflector

Claims (2)

[Claims] 1. A light collector A is installed in the vicinity of a lake or the like, and the base end of the optical fiber cable C faces a reflection focal point F of a reflector 1 of the light collector A. An apparatus for purifying deep water such as lakes and marshes, the end of which is introduced into water and the end of which is exposed to the light source L of the reflector 2 of the floodlight B, which is installed in water. 2. The focusing at the other end of the optical fiber cable C whose base end faces the focal point F of the reflecting mirror 1 of the condenser A is divided into a plurality of bundles, and each of the divided bundles is installed in water. The apparatus for purifying deep water such as lakes and marshes according to claim 1, wherein the plurality of light projectors B face the light source L of the reflector 2.