KR101151422B1 - Apparatus for treating rainwater - Google Patents

Abstract

PURPOSE: A rainwater treatment device is provided to efficiently remove contaminants and soil from rainwater even if a large amount of rainwater flows in a short time. CONSTITUTION: A rainwater treatment device(10) comprises a main body(300) and a bypass channel(400). Rainwater flows into the main body through an inlet(110) and an opening and closing unit(120). The main body filters the rainwater. When the opening and closing unit is closed, the bypass channel directly discharges the rainwater to the outside through an outlet(210). The bypass channel has one or more flow velocity reducing units(410). The flow velocity reducing units reduce the flow velocity of the rainwater flowing through the inlet.

Description

Rainwater treatment device {Apparatus for treating rainwater}

The present invention relates to a stormwater treatment device, and more particularly, to a stormwater treatment device for efficiently treating contaminants such as foreign matters flowing into a river or the like contained in rainwater.

Rainwater drops to a state that contains various pollutants in the atmosphere, and as it flows through the surface of the water, it penetrates into rivers with various pollutants.

Specifically, the ground surface has not only fallen and accumulated dust floating in the air, heavy metals contained in these dusts, but also particulates contained in the exhaust gas according to the driving of the vehicle, tire wear products according to the driving of the vehicle, Environmental pollutants such as asphalt abrasives are also stacked together.

These environmental pollutants contain heavy metals such as cadmium, eutrophic salts such as nitrogen and phosphorus, etc., which may have harmful effects on the human body.

In this way, various pollutants accumulated on the ground surface can be discharged to the river through the drainage in the case of rainfall. In this case, the overall pollution concentration of the effluent discharged to the river with the rainfall is low, but it greatly exceeds the point source in terms of the total amount. To ensure stable water quality, road drainage from impermeable areas such as roads and parking lots should be treated.

That is, in order to remove various contaminants contained in rainwater, which is one of the nonpoint pollution sources, and to improve water quality of rivers, an apparatus for treating rainwater is necessary.

Recently, various stormwater treatment devices have been proposed and utilized for pretreatment of non-point pollutants derived from such ground surface. For example, pollutants contained in rainwater are installed at regular intervals between sideways or sidewalks between roadways and sidewalks. It is used to remove it.

Here, the conventional stormwater treatment apparatus treats rainwater by precipitating and filtering foreign matters containing various pollutants, that is, soil and solids, etc., when treating a predetermined amount of rainwater, but unlike general rainwater, When a large amount of rainwater is introduced in the same short time, the limitation of the processing capacity reveals the limitation of rainwater treatment.

That is, in the case of rainwater treatment system having a limited treatment capacity, when the rainwater that exceeds the treatment capacity is introduced, the likelihood that foreign matters and the like will finally flow into the river without being completely filtered.

In addition, when a large amount of rainwater flows into the stormwater treatment device in a short time, there is also a possibility that the stormwater treatment device loses its function due to a large amount of foreign matter and the like, and a huge capital is required for the preservation of the stormwater treatment device.

Therefore, even if a large amount of rainwater flows in a short time, it is urgent to study a rainwater treatment device that effectively filters contaminants and the like and improves treatment efficiency and easy maintenance and management.

It is an object of the present invention to efficiently remove soils, solids, etc., including various contaminants when a large amount of rainwater flows unexpectedly in a short time, such as guerrilla heavy rains, and to prevent the possibility of functional degradation beforehand. To provide.

Rainwater treatment apparatus according to an embodiment of the present invention is a rainwater treatment body flowing through the outlet after the rainwater introduced through the inlet and filtered through the inlet; And a bypass channel through which the rainwater introduced through the inlet is directly discharged through the outlet when the opening and closing part is closed, wherein the bypass channel is formed above the rainwater treatment body and flows through the inlet. It may be provided with at least one flow rate reduction unit for reducing the flow rate of rainwater.

The bypass channel of the storm treatment apparatus according to an embodiment of the present invention may be formed on the upper side of the storm treatment body, and may include at least one flow rate reduction unit for reducing the flow rate of rainwater flowing through the inlet. .

The flow rate reduction part of the stormwater treatment apparatus according to an embodiment of the present invention may be repeatedly protruded from one inner wall of the bypass channel toward the other inner wall.

In the bypass channel of the rainwater treatment device according to an embodiment of the present invention, a filter medium for filtering rainwater introduced through the inlet may be filled.

The opening and closing portion of the rainwater treatment device according to an embodiment of the present invention may be determined according to the flow rate of rainwater flowing through the opening and closing portion.

The storm treatment main body of the storm treatment apparatus according to an embodiment of the present invention is a reservoir having a first filter unit for filtering the rainwater introduced through the opening and closing primary and rainwater that is firstly filtered in communication with the reservoir secondary The filtration tank provided with the 2nd filter part to filter can be provided.

The first filter part of the storm treatment apparatus according to an embodiment of the present invention may be reduced in cross-sectional area toward the bottom surface of the reservoir while surrounding the opening and closing portion in the reservoir.

The opening and closing portion of the rainwater processing apparatus according to an embodiment of the present invention may be determined by the water level of the rainwater stored in the reservoir.

The bottom surface of the reservoir of the storm treatment apparatus according to an embodiment of the present invention may be inclined to guide the rainwater flowing into the reservoir into the filtration tank.

The second filter part of the rainwater treatment device according to an embodiment of the present invention may include a secondary filter part continuously formed in the storage tank and the filtration tank, and a main filter part passing the rainwater introduced into the filtration tank in a downward direction. .

The sub-filter unit of the storm treatment apparatus according to an embodiment of the present invention may increase in height toward the filter tank.

Rainwater treatment apparatus according to an embodiment of the present invention is formed in communication with the outlet, the hole pipe for guiding the rainwater filtered by the second filter portion to the outlet; may further include a.

The hole pipe of the rainwater treatment device according to an embodiment of the present invention may be passed through the outlet through the rainwater filtered by the second filter unit.

Rainfall treatment apparatus according to an embodiment of the present invention is formed between the storm treatment main body and the bypass channel is a reverse flow prevention unit for preventing the rainwater flowing through the bypass channel into the rainwater treatment main body; It may include.

According to the rainwater treatment device according to the present invention, even when a large amount of rainwater flows unexpectedly in a short time such as guerrilla heavy rain, it is possible to efficiently remove soil, solids, and the like, including various pollutants.

In addition, it is possible to maximize the performance and life by preventing the possibility of functional degradation due to a large amount of rainwater in advance.

1 is a schematic cutaway perspective view showing a stormwater treatment device according to an embodiment of the present invention.
2 is a schematic plan view showing a stormwater treatment device according to an embodiment of the present invention.
3 is a schematic cross-sectional view taken along line AA of FIG. 2.
4 is a schematic cross-sectional view taken along line BB of FIG. 2.
5 is a schematic cross-sectional view taken along line CC of FIG. 2.
Figure 6 is a schematic perspective view showing the interior of the bypass channel provided in the storm water treatment apparatus according to an embodiment of the present invention.
7 is a schematic plan view showing the interior of the bypass channel provided in the stormwater processing apparatus according to the embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions or the present invention by adding, modifying, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.

In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

1 is a schematic cutaway perspective view showing a rainwater treatment device according to an embodiment of the present invention, Figure 2 is a schematic plan view showing a rainwater treatment device according to an embodiment of the present invention.

3 is a schematic sectional view taken along the line AA of FIG. 2, FIG. 4 is a schematic sectional view taken along the line BB of FIG. 2, and FIG. 5 is a schematic sectional view taken along the line CC of FIG. 2.

FIG. 6 is a schematic perspective view showing an interior of a bypass channel provided to the stormwater treatment apparatus according to an embodiment of the present invention, and FIG. 7 is a bypass provided to the stormwater treatment apparatus according to the embodiment of the present invention. A schematic plan view of the interior of the channel.

1 to 7, the rainwater treatment device 10 according to an embodiment of the present invention is a rainwater treatment body 300 through which rainwater (W) is introduced and filtered through the inlet 110 and the opening and closing portion 120. And when the opening and closing unit 120 is closed may include a bypass channel 400 to allow the rainwater (W) introduced through the inlet 110 to flow directly through the outlet 210.

In this case, the bypass channel 400 may not directly enter the rainwater treatment main body 300 when rainwater (W) is introduced into the rainwater treatment body 300 unexpectedly, such as guerrilla heavy rain. It may be a kind of flow passage to be discharged to the outside through the outlet 210, this will be described later after the storm treatment main body 300.

On the other hand, the term "excellent (W)" is to be understood that it includes all the water that can flow from the drainage, such as road, including rainwater flowing from the road or the like during rainfall.

Rainfall treatment body 300 may include a reservoir (100) and the filtration tank (200).

The storage tank 100 may include an opening and closing unit 120 that can be opened and closed and a first filter unit 130 that primarily filters rainwater (W) introduced through the opening and closing unit 120, and the filtration tank 200. Is in communication with the reservoir 100 may be provided with a second filter unit 220 for filtering the rainwater (W) filtered first.

Here, the storage tank 100 may be a space in which rainwater (W) introduced through the inlet port 110 formed on one side of the rainwater processing device 10 is introduced and stored through the opening and closing unit 120.

On the other hand, the opening and closing portion 120 may be determined by the flow rate of the rainwater (W) flowing through the inlet 110 or the water level of the rainwater (W) stored in the reservoir 100.

In other words, the opening and closing part 120 is opened when the rainwater (W) is introduced into the range below the processing capacity of the stormwater processing apparatus 10 according to an embodiment of the present invention is excellent (W) into the storage tank (100). Inflow, and closed if a certain condition is satisfied can further block the inflow of rainwater (W) into the reservoir (100).

That is, when a large amount of rainwater (W) in a short time unexpectedly, such as guerrilla heavy rain, the rainwater (W) flowing into the storage tank 100 through the opening and closing portion 120 is the storage tank 100 The flow rate is inevitably greater than that of the rainwater (W) flowing into the filtration tank 200.

Therefore, the rainwater (W) is to be gradually filled in the reservoir 100, and eventually reaches the upper inner wall of the reservoir (100).

In this case, the opening and closing portion 120 is closed by buoyancy due to the rain (W) is filled in the reservoir 100, the rain (W) flowing through the inlet 110 is no longer introduced into the reservoir (100). It will not be possible.

Rainfall (W) that does not flow into the reservoir (100) flows through the bypass channel 400 formed on the upper side of the rainwater treatment body 300, and eventually, the outlet 210 without passing through the rainwater treatment body (300) ) Will be leaked to the outside.

Here, the opening and closing principle of the opening and closing portion 120 is determined by the water level of the rain (W) is filled in the reservoir 100, that is, determined by the flow rate of the rain (W) flowing through the inlet (110). Will be.

That is, when a large amount of rainwater (W) is introduced through the inlet 110 in a short time unexpectedly, such as guerrilla heavy rain, the processing capacity of the rainwater treatment system 10 according to an embodiment of the present invention is exceeded. By flowing to the outlet 210 through the pass channel 400, it is possible to prevent the possibility of functional degradation due to foreign matters due to the inflow of a large amount of rain (W) in advance to improve the performance and life.

However, the opening and closing principle of the opening and closing portion 120 is not limited to opening and closing by buoyancy, sensing the flow rate of the rainwater (W) flowing through the inlet 110 or the water level of the rainwater (W) filled in the storage tank (100). Note that it can also be controlled automatically through the control unit.

On the other hand, even if the rainwater (W) introduced through the inlet 110 is discharged to the outside through the bypass channel 400, the filtration process in the rainwater treatment body 300 may be continuously carried out, to some extent After the opening and closing part 120 is opened again, rainwater (W) may be introduced into the storage tank 100 through the opening and closing part 120.

When the opening and closing portion 120 is open, the rainwater W introduced through the opening and closing portion 120 may be primarily filtered by the first filter portion 130.

The first filter unit 130 may have a shape in which a cross-sectional area decreases toward the bottom surface of the storage tank 100 while surrounding the opening and closing portion 120 in the storage tank 100, and is formed of a porous material to be excellent first. Foreign matter contained in (W) can be filtered.

That is, the first filter unit 130 may remove general wastes such as leaves, cigarette butts, etc. included in the rainwater W introduced through the opening and closing unit 120, and by the second filter unit 220. It may be a component that primarily filters before being filtered.

On the other hand, although not shown in the inner wall of the first filter unit 130, a step or the like can be formed as a step of the operator for cleaning the first filter unit 130, by using the operator the first The interior of the filter unit 130 may be cleaned.

Here, the rainwater W passing through the first filter unit 130 is filled from the bottom surface of the storage tank 100, and then passes through the second filter unit 220 when a predetermined amount is filled.

The bottom surface of the storage tank 100 may be formed to be inclined, whereby rainwater (W) flowing into the storage tank 100 can be guided more stably to the filtration tank (200).

The filtration tank 200 may be formed in communication with the storage tank 100, and may include a second filter unit 220 for secondarily filtering the rainwater W filtered first by the first filter unit 130. have.

Here, the reservoir 100 and the filtration tank 200 may be partitioned by the partition wall 230, the partition 230 is a rainwater (W) filled in the reservoir 100 is the second filter unit 220 ) To ensure stable inflow.

On the other hand, the second filter unit 220 is formed continuously with the auxiliary filter unit 222 and the auxiliary filter unit 222 formed in the storage tank 100 and the filtration tank 200 to the filtration tank 200. It may include a main filter 224 to pass the introduced rain (W) in the downward direction.

The auxiliary filter unit 222 may increase in height toward the filtration tank 200, and may have the same configuration as the main filter unit 224.

That is, the auxiliary filter unit 222 and the main filter unit 224 may include at least one medium layer, and the medium layer may remove contaminants contained in rainwater (W) through filtration or adsorption. have.

Here, the medium layer may be composed of eco-concrete, gravel or sand layer and anthracite, or eco-concrete, sand or vermiculite, and anthracite, respectively, from the lower layer.

It may also be composed of eco-concrete, sand-filled fiber or vermiculite-filled fiber, anthracite-filled fiber.

Here, the anthracite is a physical treatment filter used to improve water quality in purified water and wastewater, and the second filter part 220 according to the present invention by the anthracite has a filtration rate along with an improvement in water quality. It is fast and can increase the throughput, and its own hardness is high, so that the wear loss of the particles is small and the durability by water pressure is large.

In addition, the anthracite has a low specific gravity, so the amount of backwashing is low, the time may be short, and the backwashing may be well performed.

In addition, the suspended solids, as well as the ability to remove the turbidity, colloidal material, and can also function as a microbial carrier.

The lower layer of the medium layer communicates with the outlet 210 to guide the rainwater W filtered by the second filter unit 220 to the outlet 210 formed at the lower side of the other side of the rainwater treatment device 10. A hole tube 240 may be formed.

The hole tube 240 may be porous so that the rainwater (W) filtered by the second filter unit 220 passes, and after the rainwater (W) flowing through the inlet 110 passes through all the filtration processes. It may be a flow passage through which rainwater W passes.

Therefore, when the rainwater (W) is discharged through the outlet 210 after passing through the hole pipe 240, the process of the rainwater treatment device 10 is completed.

Bypass channel 400 is a flow passage for the rainwater (W) flowing through the inlet 110 when the opening and closing portion 120 of the reservoir 100 is closed to flow directly through the outlet 210, storm treatment It may be formed on the upper side of the main body 300.

That is, the bypass channel 400 may be a flow passage of the rainwater (W) when a large amount of rainwater (W) is introduced in a short time unexpectedly, such as guerrilla heavy rain, at least one flow rate reduction portion 410 ) May be provided.

Here, the flow rate reduction part 410 is a kind of wall that reduces the flow rate of the rainwater (W), and not only increases the movement path of the rainwater (W), but also reduces the flow rate of the rainwater (W) by converting the movement path. You can.

Meanwhile, the flow rate reduction part 410 may be repeatedly protruded from one inner wall of the bypass channel 400 toward the other inner wall, and filters the rainwater W introduced through the inlet 110 into the inner space. The filter medium 420 may be filled.

The filter medium 420 may be composed of a gravel or a sand layer, or may be composed of a fiber filled with sand or a fiber filled with vermiculite.

Therefore, even rainwater (W) that does not pass through the rainwater treatment main body 300 is discharged through the outlet 210 while undergoing a predetermined filtration process due to the filter medium 420, it is possible to implement a certain filtration function. .

In other words, when the opening and closing portion 120 of the storage tank 100 is closed, it is generally after a certain amount of rainwater (W), that is, initial rainwater (W) has flowed into the rainwater treatment main body 300, and later flows in. The excellent rain (W) is generally relatively less foreign matters than the initial rain (W).

Therefore, since the rainwater (W) that flows in excess of the filtration capacity of the rainwater treatment body 300 has less foreign matters than the initial rainwater (W), the filter material 420 filled in the bypass channel 400 is sufficient. Filtration can be implemented.

On the other hand, the bypass channel 400 may extend along the other wall of the rainwater treatment main body 300, it may be in communication with the outlet 210 formed on the other side lower portion of the rainwater treatment body 300.

In addition, the rainwater (W) flowing through the bypass channel 400 blocks the inflow into the filtration tank 200 between the bypass channel 400 and the rainwater treatment body 300, that is, the filtration tank 200. A backflow prevention part 430 may be formed to allow the backflow prevention part 430 to be formed.

That is, the backflow prevention unit 430 may allow the rainwater (W) to flow into the bypass channel 400 from the inside of the filtration tank 200, while blocking the inflow of the reverse side.

Therefore, when the flow rate of the rainwater (W) to be filled in the filtration tank 200 is increased so that the water level reaches the backflow prevention unit 430, the rainwater (W) filled in the filtration tank 200 is the backflow prevention unit ( After entering the bypass channel 400 through the 430 may flow out through the outlet 210.

Through the above embodiment, the storm treatment apparatus 10 according to an embodiment of the present invention, the filtration and outflow process by the storm treatment main body 300 and the storm water (W) that the storm treatment main body 300 can process By implementing the runoff process of rainwater (W) exceeding the flow rate as a separate passage, it is possible to efficiently remove soils, solids, etc. Can be removed.

In addition, the bypass channel 400 prevents the possibility of deterioration of the filtration function due to the inflow of a large amount of rainwater (W), thereby maximizing performance and lifespan.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

10: storm water treatment device 100: reservoir
110: inlet 120: opening and closing part
130: first filter unit 200: filtration tank
210: outlet 220: second filter portion
230: bulkhead 240: perforated pipe
300: storm water treatment body 400: bypass channel
410: flow rate reduction part 420: filter medium
430: backflow prevention unit W: excellent

Claims (14)

Rainfall processing body flowing through the inlet through the inlet is filtered through the opening and the outlet after the rainwater outlet; And
And a bypass channel through which the rainwater introduced through the inlet is directly discharged through the outlet when the opening and closing part is closed.
And the bypass channel is formed on an upper side of the storm treatment body and has at least one flow rate reduction part for reducing the flow rate of stormwater flowing through the inlet.
delete The method of claim 1,
The flow rate reducing part is a storm water treatment apparatus is formed repeatedly protruding toward the other inner wall from one inner wall of the bypass channel.
The method of claim 1,
The rainwater treatment device is filled with a filter medium for filtering the rainwater introduced through the inlet in the bypass channel.
The method of claim 1,
The opening and closing part is a rainwater processing device that the opening and closing is determined according to the flow rate of rainwater flowing through the opening and closing portion.
The method of claim 1,
The rainwater treatment main body includes a reservoir having a first filter portion for first filtering the rainwater flowing through the opening and closing portion, and a filtration tank having a second filter portion in communication with the reservoir for filtering the rainwater filtered firstly. Stormwater treatment device.
The method of claim 6,
And the first filter portion reduces the cross-sectional area toward the bottom surface of the reservoir while surrounding the opening and closing portion in the reservoir.
The method of claim 6,
The rainwater processing device, wherein the opening and closing portion is opened and closed by the water level of the rainwater stored in the storage tank.
The method of claim 6,
The bottom surface of the storage tank is formed to be inclined to guide the rainwater flowing into the storage tank to the filter tank.
The method of claim 6,
And the second filter part includes an auxiliary filter part continuously formed in the storage tank and the filtration tank, and a main filter part configured to pass rainwater introduced into the filtration tank in a downward direction.
The method of claim 10,
The auxiliary filter unit rainwater treatment device that increases in height toward the filtration tank.
The method of claim 6,
Is formed in communication with the outlet,
And a hole for guiding the rainwater filtered by the second filter unit to the outlet.
The method of claim 12,
The hole pipe is a rainwater treatment device for allowing the rainwater filtered by the second filter portion to pass through the outlet.
The method of claim 1,
And a backflow prevention unit formed between the rainwater treatment body and the bypass channel to block the inflow of the rainwater flowing through the bypass channel into the rainwater treatment body.

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