KR20090090987A - Multifunctional trough infiltration trench system and rainwater management method using the same - Google Patents

Abstract

A multifunctional trough infiltration trench system and a rainwater management method using the same are provided to improve water circulation effect in the city by processing the rainwater flowing out from an impermeable layer in green tract of land. A multifunctional trough infiltration trench system comprises a rainwater moving channel(23) and a rainwater processing channel(21). The rainwater moving channel is laid under the green tract of land facing the impermeability side in order to form a path through which the rainwater moves. The rainwater processing channel is installed inside the rainwater moving channel in order to purify the rainwater in multiple stages. The rainwater processing channel includes a green surface layer(31) collecting rainwater, a functional processing layer(37) removing foreign material inclined in the rainwater, and a water collection layer(41) collecting the filtered rainwater to be discharged outside through a perforated drain pipe(47).

Description

Green land collection system and excellent treatment method using same {MULTIFUNCTIONAL TROUGH INFILTRATION TRENCH SYSTEM AND RAINWATER MANAGEMENT METHOD USING THE SAME}

The present invention relates to a green land collection system and a rainwater treatment method using the same, and more particularly, green land collection having a function of treating stormwater runoff and pollutants from the impervious surface and the green area by utilizing the green ground in the apartment complex and park. It relates to a system and a rainwater treatment method using the same.

Green spaces are created inside the city center to improve the urban environment by preserving or improving the city's natural environment and preventing pollution and disasters. According to its function, it is a connected green space that provides a leisurely rest function by organically connecting buffer green space to prevent pollution, various accidents, and natural disasters, landscape green space for improving the urban landscape, and park rivers within the city. Are distinguished.

In general, the green area is maintained at 50 ~ 80% according to the characteristics of the target area, such as a dedicated residential area, and the minimum soil depth is maintained according to the type of planting, and the slope is at least 5 ° based on 10 ~ 30 ° slope. The above ground is to be created.

However, with the rapid urbanization in recent years, the impervious surface where rainwater cannot penetrate to the subsurface is greatly increased, and thus the permeable space is also reduced. In the land development project, green land is formed on artificial ground and water is discharged to the drainage system. In addition, the slopes are formed so that the flow of rainwater does not stagnate in the green area there is a risk of soil loss during the summer heavy rain and the leakage of contaminants in the green area.

In order to prepare for this, developed countries such as Germany have installed the Trough and Trough-Trench System in the green area, but in the case of the pitch, the permeation coefficient of the soil is installed in the area with low permeability, so it has a low penetration function. In the case of infiltration ditch, it improves drainage through the bottom infiltration and heavy rain trenches, but it is difficult to use the circulation to treat pollutants and improve water circulation.

The present invention is to solve such a conventional problem, an object of the present invention is to improve the water circulation function in the city by treating the rainwater flowing out of the impervious surface in the green area.

Another object of the present invention is to purify and utilize rainwater.

According to a feature of the present invention for achieving the above object, the green land collecting system of the present invention is buried in the lower part of the green ground that is installed facing the impermeable surface, rainwater movement channel for forming a rainwater movement passage; and the A rainwater treatment channel installed inside the storm drain channel and purifying rainwater by a multi-stage layer, wherein the stormwater treatment channel is provided on top of the stormwater treatment channel and collects rainwater; A functional treatment layer provided below the greenery surface layer and removing foreign matters in the rainwater; and a collecting layer provided below the functional treatment layer and transporting rainwater collected by the perforated pipe to the outside.

The rainwater treatment water of the present invention is provided between the greenery surface layer and the functional treatment layer, and is provided between a first drainage layer made of sand, and between the functional treatment layer and the water collecting layer, and composed of crushed stone or aggregate for recycling. It is preferred to include a second drainage layer.

It is preferable that the 1st drainage layer of this invention consists of sand which has a particle diameter of 0.25 mm or more and 4 mm or less, and the thickness of the said 1st drainage layer is 10 cm or more and 15 cm or less.

The second drainage layer of the present invention is preferably composed of crushed stone or aggregate for recycling having an average particle size of 6 times or less of the average particle size of the purification medium provided in the functional treatment layer.

Greenery surface layer of the present invention is preferably recessed to a depth of 10 ~ 30cm from the ground surface to have a concave shape.

The greenery surface layer of the present invention preferably includes a drain pipe for draining rainwater to the outside.

The functional treated layer of the present invention is preferably composed of perlite, activated carbon or zeolite.

The water collecting layer of the present invention preferably includes a sand drainage layer formed to be inclined at 0.1 to 0.3% so as to collect rainwater into the hole pipe, and a crushed stone drainage layer provided on the sand drainage layer.

It is preferable that a water permeable layer capable of moving rainwater is formed between the storm water treatment channel and the storm mobile channel of the present invention.

In the case of the artificial ground, the storm runoff of the present invention preferably includes a waterproof layer on both sides and the bottom surface of the storm runoff.

It is preferable that the storm runoff of the present invention includes a waterproof layer on both sides of the storm runoff.

Perforated pipe of the present invention is preferably connected to the storage tank provided separately to the outside.

Storage tank of the present invention is preferably connected to the central control unit by a connecting pipe.

The central control unit of the present invention preferably controls the storage tank so that the rainwater stored in the storage tank can be used as landscape water, sprinkling water, or washing water.

Rainwater treatment method using the greenery collection system of the present invention is the greenery surface layer passing step of collecting rainwater to discharge to the bottom by using the concave shape of the greenery surface layer; A purifying step of purifying the rainwater passed by the step of passing the greenery surface layer by the purifying filter; A collecting step of collecting rainwater purified by the purifying step by using a hole pipe; And a storage step of storing the rainwater collected by the collecting step in a storage tank; and a control step of controlling the use of the rainwater stored by the storing step.

Preferably, the step of passing the greenery surface layer of the present invention includes the step of draining rainwater that flows through the drain pipe connected to the greenery surface layer to the outside.

In the purification step of the present invention, it is preferable to purify rainwater using perlite, activated carbon, or zeolite.

Purification step of the present invention preferably comprises the step of draining rainwater to the bottom using sand, crushed stone or aggregate for recycling.

In the control step of the present invention, it is preferable to control the storage tank so that the stored rainwater can be supplied to the landscape water, the sprinkling water, or the washing water.

According to the green land collecting system according to the present invention and the rainwater treatment method using the same, it is possible to form a sound water circulation system by providing a water circulation system in the impervious layer in the city, to eliminate the water shortage phenomenon by purifying and recycling the rainwater There is an advantage that can reduce the cost of using water.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the greenery collection system and a rainwater treatment method using the same will be described in more detail.

1 to 3 show a preferred embodiment of the greenery collection system and the rainwater treatment method using the same according to the present invention.

As shown, the green area 10 is formed on the artificial ground or natural ground forming the urban ground (1). The green area 10 formed in the city center preserves the natural environment in the city center, reduces pollution and improves the living environment, thereby improving the residential satisfaction of the residents.

In the urban ground (1), a channel channel 20 for installing the green land collecting system according to the present invention is formed. The channel 20 is formed by excavating the ground (1), it is formed long along one direction of the urban ground (1).

The water channel 20 may be composed of a rainwater treatment channel 21 for purifying and collecting rainwater and a storm movement channel 23 for moving rainwater that exceeds the purification flow rate of the rainwater treatment channel 21. Can be. That is, when the amount of rainwater that can be purified by the rainwater treatment channel 21 is exceeded, the rainwater moves through the rainwater movement channel 23.

The rainwater treatment channel 21 is formed with a multi-stage layer for purifying rainwater, and the rainwater movement channel 23 serves as a passage for rainwater to move. The rainwater treatment channel 21 is provided to be seated in the rainwater movement channel 23.

Both sides and the lower surface of the excellent movement channel 23 may be provided with a waterproof layer 25 for forming an impermeable layer. When the green land collecting system of the present invention is installed on artificial ground, the waterproof layer 25 is provided on both sides and the lower surface of the rainwater moving channel 23 to prevent rainwater from leaking into the artificial ground, When the greenery collection system is installed on the natural ground, the waterproofing layer 25 is provided only on both sides of the rainwater movement channel 23 so that rainwater may be naturally drained to the natural ground through the lower surface of the rainwater movement channel 23. Make sure

In the case of artificial ground, the rainwater may penetrate into the artificial ground and cause a problem of water leakage. Therefore, the waterproofing layer 25 should be installed on all sides of the rainwater moving channel 23. Since the waterproof layer 25 may be provided only on the side surface of the rainwater movement channel 23.

A crushed stone layer 27 is provided between the storm water treatment channel 21 and the storm water movement channel 23 to drain the storm water and support the storm water treatment channel 21. The crushed stone provided in the crushed stone layer 27 is composed of crushed stone having a relatively large particle diameter, and thus, does not interfere with the movement of rainwater.

Since both ends of the storm moving channel 23 is connected to the storm pipe connected to the external stream, the rainwater passing through the storm channel 23 can be discharged to the outside through the storm pipe.

The permeable layer 29 is provided on the outer surface of the rainwater treatment channel 21. The water permeable layer 29 serves to prevent the separation of the material provided in the rainwater treatment channel 21 and to pass rainwater. The permeable layer 29 may be formed of a case or a nonwoven fabric having a permeation hole formed therein.

The green surface layer 31 is provided on an upper portion of the rainwater treatment channel 21. The greenery surface layer 31 is preferably planted with grass and herbaceous plants that do not interfere with growth even when submerged in water during rainfall. The greenery surface layer 31 is preferably formed in a concave shape for rainwater collection and storage, and the depth from the ground surface does not exceed 30 cm for safety accidents and smooth drainage. .

The greenery surface layer 31 is connected to a drain pipe 33 disposed at a predetermined interval and embedded in the ground. The drain pipe 33 is connected to the external storm pipe and serves to discharge the rainwater flowing over from the greenery surface layer 31 to the outside during heavy rains in summer.

The lower part of the green surface layer 31 is provided with a first drainage layer 35 for penetrating the rainwater passing through the green surface layer 31 downward. The first drainage layer 35 is preferably composed of a sand layer containing more than 60% of the weaving and irradiation for smooth penetration of the bottom, and the sand has a particle diameter of 0.25 to 4 mm for easy drainage and the first drainage layer ( It is preferable that the thickness of 35) is formed to about 10 to 15 cm.

A lower portion of the first drainage layer 35 is provided with a functional treatment layer 37 for purifying heavy metals in the rainwater and particulate or dissolved contaminants. Rainwater may be recycled by purifying particulate or dissolved pollutants by passing rainwater through the functional treatment layer 37 because there is a risk of heavy metal contamination by vehicle operation and a variety of nutrients and suspended solids.

The functional treatment layer 37 may be provided with a purifying filter for purifying contaminants in the rainwater. As the purifying filter, perlite, activated carbon, zeolite, and the like may be used.

The properties of the material used as the purification medium are listed in Table 1.

 division  Media Specific weight (kgf / ㎥) Total pore area (㎡ / g)  Porosity (%) Media gap Average pore diameter V / A (㎛) Vol (μm) Area (㎛) P perlite 0.78 0.536 45.8834 6.0342 8.2794 13.3878 A Activated carbon 1.76 45.755 27.0073 1.1254 0.0048 0.0239 Zd zeolite (dry, 300 ℃) 2.28 14.081 27.2106 0.2554 0.0118 0.049 Zc zeolite (calcination, 700 ℃) 2.38 9.100 28.0864 0.5657 0.0153 0.0754

Each medium may be selectively used according to the precipitation and soil characteristics of the area where the greenery collection device of the present invention is installed.

The lower portion of the functional treatment layer 37 is provided with a second drainage layer 39 for smooth drainage of rainwater. The second drainage layer 39 is preferably composed of crushed or recycled aggregates to smooth drainage and reinforce the lower support of the ground.

However, when the lower portion is composed of coarse particles compared to the upper portion, the phenomenon of submersion without drainage may occur due to the capillary stop phenomenon. Therefore, since the second drainage layer 39 is provided below the functional treatment layer 37, in order to prevent flooding due to capillary stoppage, the crushed or reclaimed aggregate provided in the second drainage layer 39 is the functional It is preferable to maintain the maximum 6 times or less of the average particle size of the purification medium provided in the process layer 37.

The lower portion of the second drainage layer 39 is provided with a collecting layer 41 for collecting rainwater and sending it to a storage tank to be described below. The bottom surface of the collecting layer 41 is provided with a sand drainage layer 43, and the top of the sand drainage layer 43 is provided with a crushed stone drainage layer 45.

The sand drainage layer 43 may be formed with a slope for collecting rainwater. It is preferable that the inclination of the sand drainage layer 43 is 0.1 to 0.3%, and the rainwater may be collected to the center of the cross-section of the sand drainage layer 43 by the inclination of the sand drainage layer 43.

A hole tube 47 is provided at the center of the cross-section of the sand drainage layer 43. The hole tube 47 is provided along the longitudinal direction of the water channel 20. The hole pipe 47 may send the purified rainwater to the storage tank (50).

Rainwater collected by the collecting layer 41 is stored in the storage tank 50 through the oil hole pipe 47. The storage tank 50 may be connected to the central control unit 53 through the connection pipe (51). The central control unit 53 monitors the amount of rainwater stored in the storage tank 50, and serves to send the rainwater stored where it is needed to use the rainwater as landscaping water, sprinkling water or washing water.

The greenery collecting device configured as described above collects and stores the purified rainwater passing through the greenery surface layer 31, the first drainage layer 35, the functional treatment layer 37, and the second drainage layer 39 through the perforated pipe 47. By storing in the tank 50, the rainwater can be purified and utilized.

The central control unit 53 grasps the amount of rainwater stored in the storage tank 50, and if the amount of rainwater is excessive, the rainwater may flow through the rainwater pipe, and the rainwater may be used as landscaping water, sprinkling water, or washing water. The rainwater flow path drained from the storage tank 50 may be in communication with a moving tube connected to each use water, or the amount of rainwater may be controlled through a control valve.

In the case of heavy rain during summer, the rainwater that overflows through the drain pipe 33 connected to the green surface layer 31 may be discharged to the outside, and the rainwater that flows through the rainwater treatment channel 21 increases in the rainwater treatment water. Rainfall may be introduced into the rainwater moving channel 23 provided outside the furnace 21 and discharged to the outside.

The rainwater stored by the green space collecting device of the present invention is shown by circulating or using water as green water space, drinking water for landscaping water of ponds and ponds, water for cleaning roads, and cooling in summer, or by using as washing water and general water for toilets. We can plan water circulation restoration.

In the scope of the basic technical spirit of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the claims which will be described later. .

According to the greenery collection system and the excellent treatment method using the same according to the present invention as described in detail above has the following advantages.

Providing a system that can circulate rainwater in the impermeable layer distributed in the city has the advantage that can form a sound water circulation system by solving the permeability imbalance in the city.

Since the rainwater can be purified and utilized by a plurality of filtration layers, there is an advantage of eliminating water shortage and reducing the cost of using water.

1 is an installation state showing a state in which the greenery collection system according to the present invention is installed.

Figure 2 is a schematic view showing the configuration of the greenery collection system according to the present invention.

Figure 3 is a sectional view showing a preferred embodiment of the greenery collection system according to the present invention.

Description of the main parts of the drawing

20: Channel Channel 21: Rainwater Treatment Channel

23: storm runoff 25: waterproof layer

31: greenery surface layer 35: first drainage layer

37: functional treatment layer 39: second drainage layer

41: catchment layer 47: merit pipe

50: storage tank 53: central control unit

Claims (19)

Storm drainage channel embedded in the lower part of the green ground that is installed facing the impermeable surface, to form a passage through which rainwater moves; And A rainwater treatment channel installed in the rainwater movement channel and purifying rainwater by a multi-stage layer, As the excellent treated water A greenery surface layer provided on an upper portion of the rainwater treatment channel and collecting rainwater; A functional treatment layer provided below the greenery surface layer and removing foreign matter in the rainwater; and It is provided in the lower portion of the functional treatment layer, comprising a collecting layer for transporting the rainwater collected by the perforated pipe to the outside Green land collection system. The method of claim 1, As the excellent treated water A first drainage layer provided between the greenery surface layer and the functional treatment layer and composed of sand; A second drainage layer provided between the functional treatment layer and the water collecting layer, the second drainage layer consisting of crushed or recycled aggregates; Green land collection system. The method of claim 2, The first drainage layer It is composed of sand having a particle diameter of 0.25mm or more and 4mm or less, wherein the thickness of the first drainage layer is formed to 10cm or more and 15cm or less Green land collection system. The method of claim 2, The second drainage layer It is composed of crushed stone or aggregate for recycling having an average particle size of 6 times or less of the average particle size of the purification filter provided in the functional treatment layer Green land collection system. The method of claim 1, The greenery surface layer is Recessed to a depth of 10 to 30 cm from the ground surface to have a concave shape Green land collection system. The method of claim 1, The greenery surface layer is Including a drain pipe for draining the rainwater to the outside Green land collection system. The method of claim 1, The functional treatment layer Composed of perlite, activated carbon or zeolite Green land collection system. The method of claim 1, The catchment layer is A sand drainage layer formed to be inclined at 0.1 to 0.3% so as to collect rainwater into the hole pipe; It includes a crushed stone drainage layer provided on top of the sand drainage layer Green land collection system. The method of claim 1, Between the rainwater treatment channel and the rainwater channel, a water permeable layer to move rainwater is formed Green land collection system. The method of claim 1, The excellent movement channel It includes a waterproof layer on both sides and the lower surface of the excellent movement channel Green land collection system. The method of claim 1, The excellent movement channel It includes a waterproof layer on both sides of the excellent movement channel Green land collection system. The method according to any one of claims 1 to 11, The hole is Connected to the storage tank provided separately on the outside Green land collection system. The method of claim 12, The storage tank Connected with the central control unit by connector Green land collection system. The method of claim 13, The central control unit Controlling the storage tank to use the rainwater stored in the storage tank as landscaping water, sprinkling water or washing water. Green land collection system. Greenery surface layer passing step of collecting rainwater to discharge to the bottom by using the concave shape of the greenery surface layer; A purifying step of purifying the rainwater passed by the step of passing the greenery surface layer by the purifying filter; A collecting step of collecting rainwater purified by the purifying step by using a hole pipe; A storage step of storing the rainwater collected by the collecting step in a storage tank; and And a control step of controlling the use of rainwater stored by said storage step. Rainwater treatment method using green land collection system. The method of claim 15, The greenery surface layer passing step And draining the rainwater flowing out through the drain pipe connected to the green surface layer to the outside. Rainwater treatment method using green land collection system. The method of claim 15, The purification step Purifying rainwater using perlite, activated carbon or zeolite Rainwater treatment method using green land collection system. The method of claim 15, The purification step Using sand, crushed stone or recycled aggregate to discharge rainwater down; Rainwater treatment method using green land collection system. The method of claim 16, The control step To control the storage tank to supply stored rainwater to landscape water, sprinkling water, or scrubbing water. Rainwater treatment method using green land collection system.

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