JPS6157294A - Apparatus for purifying water of garden pond - Google Patents

Abstract

PURPOSE:To prevent the propagation of water bloom and to suppress the increase of other eutrophication elements, by recirculating the water of a pond and utilizing the decomposition action of org. substances by aerobic soil bacteria and the sterilization power of ultraviolet rays in the recirculation process. CONSTITUTION:The interior of a box body 1, of which the front surface is opened, is partitioned into three stages and a perforated water sprinkling pipe 2 is horizontally provided to the front part of the upper stage and a gap is provided between the floor 3 of the upper stage and the rear wall thereof while the rear end of the floor 3 of the upper stage is slightly raised. The floor 5 of the middle stage is retracted slightly rearwardly as compared with the floors of both upper and lower stages and slightly raised at the front end thereof while an ultraviolet sterilization lamp 8 having a reflective plate 7 is horizontally provided to the rear part of the lower stage. Further, compressed fibrous filter materials 11 are placed on the floors 3, 5 of the upper and middle stages and the filter material 11 having the same quality as mentioned above is placed on the first half part of the floor 9 of the lower stage 9. The water pumping-up pipe 12 connected to a suction pump is connected to the perforated water sprinkling pipe 2 and the drain pipe 13 reaching the surface of the pond is connected to the lower part of the rear surface of the box body 1. As a result, the propagation of water bloom is prevented and the increase of other eutrophication elements is suppressed.

Description

[Detailed Description of the Invention] (Purpose) This invention utilizes the organic matter decomposition action of aerobic soil microorganisms and the sterilizing power of ultraviolet light in gardens, fish ponds, etc. where water circulation is incomplete. The present invention relates to a simple water purification device that prevents breeding and suppresses the increase in other eutrophication factors.

In small water bodies with poor hydrophobicity, green minute algae (
Hereinafter referred to as blue powder. ) breeds and impairs the clarity of pond water, and if left untreated, it forms a layer of blue powder on the water surface, blocking air and reducing the solubility of oxygen in the water.

This impairs the aesthetic appearance of gardens and threatens the survival of fish in fish ponds. In addition, in small water bodies, pond water becomes eutrophic due to an increase in organic matter due to the decay of fish feed and fish feces in addition to blue powder.
(pollution), which impedes the viewing of fish and reduces its ability to cultivate fish. The object of the present invention is to provide a simple water purification device that performs circulating hydrophobic treatment on pond water and removes blue powder and other organic substances in the process.

(Structure) Next, the structure of one embodiment of the present invention will be described based on the drawings. The main body of this example is a box body (1) with a wide open front with a width of 525 mm, a height of 550 mm, and a depth of about 450 mm, as it is suitable for handling water volumes of about 15 tons, which is the most common in Japan. The inside of the box is divided into three stages to form a long channel, and a porous water pipe (2) with an inner diameter of 28 mm is installed horizontally at the front upper part of the upper stage.
Upper water supply plate (4) with the front end of the floor (3) placed horizontally in front of the box body
Make a gap between the rear end and the back wall, and place the rear end about I
Qmm stands up. The middle floor (5) is the floor of both the upper and lower floors (
3, 9), and attach the overflow plate (6) to the front end so that the upper part of the plate rises about 10 mm above the surface of the floor (5), and the rear end is tightly attached to the back wall. let An ultraviolet germicidal lamp (8) equipped with a reflector (7) is installed horizontally at the rear upper part of the lower tier, and the front end of the floor (9) is brought into close contact with the lower tier water stop plate (10) and the rear end is brought into close contact with the back wall. Molding synthetic resin into fibers for about 30 seconds
A filter medium (11) compressed to a thickness of u+ is placed on the floor of each stage. The filter media is on the floor excluding the rear gap in the upper stage (3)
, on the entire surface of the floor (5) in the middle tier, and on the front half of the floor (9) in the lower tier. Lifting pipe (1) with an inner diameter of 28 mm connected to a small lifting pump (not shown) of approximately 15 watts.
2) to the porous sprinkler pipe (2), put the other end of the pumping pipe into the pond, and connect the drain pipe (13) with an inner diameter of 50::IJ to the box (1).
This embodiment is put into use by connecting it to the lower back side of the tank and guiding the outer end to the pond surface.

(Effect) When the water pump is energized, the pond water flows through the water pump (12
), enters the porous water sprinkler pipe (2) 9, is evenly distributed over the upper filter media, flows from the front to the rear, and flows down from the gap at the rear end of the floor (3) onto the middle filter media.

Soil microorganisms that have the ability to decompose organic matter are attached to each stage of filter media, and they decompose blue powder and other organic matter contained in the pond water flowing through the filter media. Most soil microorganisms are aerobic, so when the aeration distance is long as in the present invention, the microorganisms are always activated and the phagocytosis is high. The reason why the rear end of the upper floor (3) and the front end of the middle floor (5) are made into a raised ridge shape is that the raised ridge acts as an dam and slows down the underflow. This is to aid culture. The water that has passed through the middle filter medium flows down from the front end of the bed (5) to the lower filter medium, and by the time it has passed through the filter medium, most of the blue powder, etc. has been removed by the organic matter decomposition action of soil microorganisms. The pond water that has passed through the lower filter media flows directly over the floor (9), but during this process it is irradiated upwards with an ultraviolet germicidal lamp (8), and blue powder, etc. in the water is almost completely removed. It will be destroyed.

Since ultraviolet rays pass through water and air well, the sterilization effect in shallow running water is great.According to experimental results, 99% of blue powder and other germs can be removed by irradiation of 15 watts for about 1 second on 15 liters of water per minute. are dying out. Sterilized water is in the box (1)
The water is returned to the pond through a drain pipe (13) connected to the lower back of the pond, and this circulation improves the clarity of the pond water.

The present invention has a simple structure, and since there are no moving parts other than the water pump, there are fewer failures, and since the material used is mainly synthetic resin, it can be provided at low cost.

It is characterized by the fact that it requires very little maintenance, just cleaning or replacing the filter media once in a while and opening and closing the pump depending on the clarity of the pond water.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the present invention, and FIG. 2 is a side view with side walls removed. 1 is a box body, 2 is a porous water pipe, 3 is an upper floor, 4 is an upper water stop plate, 5 is a middle floor, 6 is an overflow plate, 7 is a reflector plate, 8 is an ultraviolet germicidal lamp, 9 is a lower level floor, 10 is the lower waterstop, 1 is the filter material, 12 is the water pump, and 13 is the drain pipe. Patent application agent Takashi Kagami Kiriden 1 Diagram

Claims (1)

[Claims] The interior of the box with an open front is divided into three levels, a perforated water pipe is installed horizontally in front of the upper level, a gap is created between the upper level floor and the back wall, and the rear end of the upper level floor is raised slightly. , the middle floor is lowered a little further back than the upper and lower floors, the front end is raised slightly, and an ultraviolet germicidal lamp with a reflector is installed horizontally at the rear of the lower tier.
A compressed fibrous filter medium is placed on the upper and middle floors, a filter medium of the same quality as above is placed on the first half of the lower floor, a water pump connected to a water pump is connected to the porous water pipe, and a box is placed. A water purification device for garden ponds, etc., characterized in that a drain pipe reaching the pond surface is connected to the lower part of the back of the body.