JP2003019495A - Water purification method and rooftop greening method by simple waterway - Google Patents

Abstract

(57) [Summary] [Purpose] To purify the water quality of rivers and lakes and green the roof of buildings by using hydroponic waterways that can be easily installed and removed. [Structure] A waterway is formed by splicing unit waterways of a fixed length with a foam plastic as a core material and a surface coated with resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification method and a rooftop greening method for improving the water quality of rivers and lakes by hydroponics using water channels.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made regarding purification of water in rivers and lakes. A method of decomposing and purifying nutrients with the help of aerobic bacteria by blowing air to increase dissolved oxygen, and a vegetation float with a structure in which the roots of plants hang down in water. There was a way to purify.

The former method was able to decompose nutrients but could not remove phosphorus and nitrogen from water.
On the other hand, the latter method had the advantage that it was possible to remove them by mowing the plants that were growing in the flow, and it was also useful for beautifying the landscape, but because it floats in the lake, Management such as reaping and maintenance were difficult.

On the other hand, as in the example of Japanese Patent No. 1689108 "Purification Method by Cultivating Valuable Plants", a waterway with a gentle slope is provided on the waterside so that the roots of plants do not appear above the water surface and at the bottom of the water. There was also a technology to introduce water from rivers and lakes into what was able to maintain an appropriate water depth, and to cultivate valuable plants to simultaneously harvest vegetables and purify water. However, there was still room for consideration regarding the structure and installation of the canals.

[0005]

As described above, when using plants to purify water such as lakes and marshes,
There is a need for a lightweight hydroponic canal that can be easily installed, moved or removed from the waterfront.

In large cities, green spaces have disappeared as development progresses, and the heat island phenomenon in urban areas has become apparent. As one of the measures for improvement, greening of rooftops of buildings has been proposed.

[0007]

[Means for Solving the Problem]
According to the water purification method using a lightweight canal, it is possible to construct a canal in a short period of time and easily purify the water if there is a flat land where it is needed. You can also easily green the rooftop of the building.

[0008]

[Embodiment 1] A water channel according to the present invention will be described with reference to the drawings. Figs. 1, 2 and 3 show the head portion of the water channel,
The middle part and the terminal part are shown, and the middle part is used by connecting a plurality of the same products. The width of the water channel is about 1 meter, the height is about 30 cm, and the length is about 2 meters. The cross section has a concave shape as shown in FIG. 4 in order to reduce the weight. A foamed plastic 1 is used as a core material, and the surface is covered with a resin 2.

The terminal portion is provided with a groove 3 into which a plate is fitted to form a weir. If necessary in the middle part, such a groove can be used as a weir. A female portion 4 and a male portion 5 are provided at the joint portion so that they can be easily fitted to each other. After joining, caulking is performed with a silicone sealing agent or the like.

The water channel may have a gentle water gradient throughout or may have a partly flat portion. When water pumped up from a lake is poured into the head of the waterway, the water sequentially flows through the waterway and reaches the terminal. The water from it should be returned to the original lake.

FIG. 5 is a conceptual view showing that a plurality of water channels according to the present invention are installed to purify water in a lake. Water pumped by a submersible pump 6 passes through a pipe 7 and a header 8 at each channel. It is distributed to the lake and slowly flows through the waterway to grow plants, and the reformed water comes out of the terminal and returns to the lake. It is convenient to secure a passage for inspection between each waterway.

[0013]

[Embodiment 2] Although not shown, when the waterway of the present invention is used for rooftop greening of a building, the waterway is laid out in a necessary place, but since the purpose is not to purify water quality, it is necessary to take a water gradient. There is no.

[0014]

As described above, since the waterway of the present invention is lightweight and can be easily disassembled, moved, and assembled, it can be quickly installed as needed without large-scale construction, and water purification of rivers and lakes can be performed. And you can start rooftop greening.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a head portion of a waterway.

FIG. 2 is a conceptual diagram of an intermediate portion of a waterway.

FIG. 3 is a conceptual diagram of a terminal portion of a waterway.

FIG. 4 is a sectional view of a water channel.

FIG. 5 is a conceptual diagram showing that a plurality of water channels are laid to purify water.

[Explanation of symbols] 1. Foam plastic for core material 2. Surface coating resin 3. Groove for fitting a board for a weir 4. Female at the joint 5. Male of joint 6. pump 7. pipe 8. header

[Reference number] TES-01-003

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04D 13/00 E04D 13/00 Z (72) Inventor Ise-Riki, Otaru City, Hokkaido 3-chome 524-11 Tamai Environmental Systems Co., Ltd. Inner F-term (reference) 2B022 AB04 AB08 2B314 MA62 MA63 NA08 NA23 NC38 ND44 PB08 PB60 4D040 CC02 CC05

Claims (4)

[Claims] 1. A foamed plastic core material, the surface of which is covered with a durable resin, which has a straight line or a curved line with a concave cross section and has a constant length of female and male teeth at both ends. Used for hydroponics, by combining an intermediate member that can be spliced together to form a long waterway and a tip member that has one end closed and only the other has a female or male bite. A waterway device that is lightweight and easy to install and remove. 2. There is a groove for fitting a plate for making a weir at the end of the waterway or in the middle of the waterway for changing the water level in the waterway, and by changing the width of the plate, an arbitrary height can be obtained. The waterway device according to claim 1, wherein the water level is obtained. 3. An aquatic plant, wherein the waterway device according to claim 1 or 2 is installed on the waterside of a river lake, the water of the river lake is pumped up and flowed to the waterway device, and planted in the waterway. A water purification method that purifies water with the help of the organisms that inhabit the roots. 4. The waterway device according to claim 1 or 2 is installed on a flat roof of a building, and aquatic plants are planted in the waterways to reduce atmospheric temperature due to evaporation of water from the plants and small birds. Rooftop greening method that can provide rest areas and habitat for small animals.