KR20130070072A - A street tree box having improved non-point pollutant source disposal properties - Google Patents

Abstract

PURPOSE: A roadside tree planting box is provided to build an efficient hydrologic cycle environment and to be able to directly recycle the discharged rainfall effluent by maximizing the processing efficiency of non-point pollutants. CONSTITUTION: A main body(10) is open on the top, and formed with a planting and filtering space inside. A collecting chamber(20) has an overflow path which connects the upper part of the planning and filtering space(S1) and a collecting space(S2), and a drain gutter(70) which drains the inflow water of the collecting space. A mesh frame(27) is installed on the lower side of the collecting chamber, and filled with filter medium inside. A plant vegetation layer(30) is laminated in the planting and filtering space. The collecting chamber is installed at a relatively lower position than the upper end of the main body within the planting and filtering space. A water permeable path(80) comprises multiple permeable holes punched on a bottom board(21) of the collecting chamber, or multiple permeable tubes penetrated into the bottom board. The bottom board of the body further comprises an underground water permeable path(90) connecting with underground.

Description

A street tree box having improved non-point pollutant source disposal properties}

The present invention is to build a water circulation environment by using the tree space of the road and to provide sufficient water supply to the planted trees, and in particular to a tree planting box that maximizes the non-point source treatment capacity from rainfall runoff.

Roads are generally planted on roads. Street trees provide pleasant feelings and psychological stability for pedestrians, drivers and others, absorbing solar heat, blocking or reducing snow, rain, and fog, and alleviating the effects of wind to reduce microclimate control effects. And the branches and leaves of the water pipe has a function of adsorbing dust and dust, and absorbs harmful gases to purify the air.

These street trees have beautiful linear beauty as sculptures, used for water walls and backgrounds, have decorative effects, soften the heavy feeling of urban buildings, and create living spaces in other areas around them. It protects the privacy by separating from the space, and efficiently divides and uses the space. As an engineering effect, it prevents erosion due to soil stabilization, blocks noise, provides sound insulation effect, and has a function as a fire zone.

In the conventional tree planting technique, the above-mentioned functions and effects are merely expected. Recently, various treatment facilities for non-point pollutants, such as rainfall runoff, have been developed in addition to point pollutants such as domestic waste, industrial waste, and industrial waste water. Most non-point pollutant treatment facilities are classified into natural type and device type, and natural type includes infiltration filtration type, ecological packing filter type, vegetation biofilter type, curb filter type and rain garden type. Vortex type, hydraulic filter type and tribox filter type facilities are available.

In the case of the tribox filter type non-point pollutant treatment facility, the non-point pollutant can be treated while having a vegetation space where roadside trees are planted or flower beds are formed. Such a tree box filter type non-point pollutant treatment facility is provided with a box body provided with an inlet such as rainfall runoff at the top of one side, and forming a roadside tree or a flower bed, and a media layer filled in the inner bottom of the box body, and the media layer. It includes a vegetation soil layer filled in the upper portion of the box body, and a drain pipe for draining the treated water filtered by the filter medium layer in the ground or rainwater pipe or the sump tank.

In addition, the inlet provided at the upper end of the box body is disposed toward the road so that rainfall runoff flowing along the road can be introduced when the tree box filter type non-point pollutant treatment facility is installed on the road side.

However, in the conventional tribox-type non-point pollutant treatment facility, rainfall runoff flowed into the box body through the inlet from the road side is filtered downward while passing downward through the vegetation soil layer and the media layer, and the ground or rainwater pipe through the drain pipe provided at the bottom of the box body. It is drained to a furnace or a sump, and rainfall runoff water containing a large amount of nonpoint pollutants, as well as rainfall runoff water containing a small amount of nonpoint pollutants after the initial rainfall, are filtered through vegetation soil and media layers, and then drained. There is a problem in that the efficient treatment according to the inflow amount of rainfall runoff because it is drained through.

In addition, since the initial rainfall runoff water containing a large amount of nonpoint pollutants as well as rainfall runoff water containing a small amount of nonpoint pollutants after the initial rainfall was passed through the filter bed, there was a problem that the filtration load of the filter bed layer increases.

In addition, in the conventional tribox-type nonpoint pollutant treatment facility, the rainfall runoff flows downwardly through the vegetation soil layer and the medial layer, and then is drained through a drain pipe provided at the bottom, and the rainfall runoff is not stored in the vegetation soil layer and the medial layer. Therefore, there is a problem that the vegetation environment of the tree is poor because it does not secure enough moisture for the growth of trees such as roadside trees.

In addition, the conventional tribox-type non-point pollutant treatment facility is expected to remove the non-point pollutant from the rainfall runoff to a certain extent, but since it is not sufficiently removed, it is not possible to recycle the discharged rainfall runoff as heavy water and perform separate treatment. As a result, the procedure was cumbersome and uneconomical.

Therefore, the present invention was devised to solve the above problems, by utilizing the tree space of the road to efficiently build a water circulation environment, as well as maximize the treatment efficiency of non-point pollutants to recycle the discharged rainfall runoff immediately. The purpose is to provide a tree planting box that can be.

The planting tree planting box is enhanced non-point pollution treatment ability according to the present invention is the upper portion is open to achieve the above object and the planting and filtering space is formed therein; In the planting and filtering space is installed at a relatively lower position than the upper end of the main body, the catchment space for collecting the inflow water therein and the upper flow passage and the collecting space of the upper portion of the planting and filtering space and the collecting space A collecting chamber provided with a drain passage for draining the inflow water; A mesh frame mounted below the collection chamber and filled with a filter material therein; And a tree vegetation layer laminated on the planting material and filtration space.

Here, the mesh frame is embedded in the bottom of the collection chamber to be detachable, the entire surface is composed of a mesh network, the filter medium is characterized in that the diameter of the mesh of the mesh network is larger.

In addition, it is reasonable that the mesh frame is configured to open and close the upper surface of the mesh frame so as to replace the filter medium when necessary.

In addition, the filter medium is characterized in that it comprises a s Korea, in addition to 100 parts by weight of the steelmaking slag 20 to 40 parts by weight, 5 to 15 parts by weight of water, 0.5 to 0.10 parts by weight of the hardening agent is further blended Can be.

Meanwhile, the tree vegetation layer includes an upper layer and a lower layer filter layer stacked on upper and lower portions of the planting material and the filtration space, respectively; And it characterized in that it comprises a soil layer laminated between the upper and lower media layers.

The collection chamber may further include at least one water permeation passage communicating with the collection space and the planting and filtration space of the body.

As described above, the tree planting box with enhanced non-point pollution treatment capacity according to the present invention can implement water circulation environment and non-point pollutants simultaneously by utilizing the tree space of the road.

First of all, rainfall runoff flowed into the planting and filtration space of the main body undergoes a top-down filtration process and a bottom-up filtration process. It is effective to maximize the removal efficiency of the material.

In addition, a water permeation passage is provided in the lower part of the collection chamber to store a certain amount of rainfall runoff after the end of the rainfall, so that the rainfall runoff gradually penetrates the tree vegetation to secure enough water for the growth of vegetation trees. It has the effect of being able to grow.

1 is a longitudinal cross-sectional view showing a tree planting box enhanced the non-point pollution treatment capacity of the present invention.
2 is a sectional view taken along the line AA in Fig.
3 is a sectional view taken along line BB of Fig.
Figures 4a to 4b is a schematic diagram showing an embodiment of the tree planting box enhanced the non-point pollution treatment capacity of the present invention.
Figure 5 is a plan view showing a preferred embodiment of the tree space composition structure to which the tree planting box is enhanced non-point pollution treatment ability according to the present invention.
6 is a sectional view taken along the line DD of FIG. 5.
7 is a cross-sectional view taken along line EE of FIG. 5.
8 is a cross-sectional view taken along line FF of FIG. 5.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the tree planting box having enhanced non-point pollution treatment ability according to the present invention includes a main body 10 embedded in the ground and an inflow water including rainfall runoff water provided in the main body 10. A catching chamber 20 for collecting and draining water, and a mesh frame 27 and the main body 10 which are mounted in the collecting chamber 20 to finally filter rainfall runoff discharged through the collecting chamber 20 into a collecting well. A) laminated on the inside is configured to include a vegetation vegetation layer 30 for planting vegetation (P) including trees.

The main body 10 is configured to accommodate the tree vegetation layer 30, and a planting material and a filtration space S1 are formed therein, and an upper portion thereof is opened so that an inflow water including rainfall runoff is introduced.

As an example, the main body 10 may be configured in a rectangular parallelepiped shape as shown in FIG. 1, and in this case, the main body 10 includes front and rear walls 12 and 13 that form an outer wall with the base plate 11. ) And left and right walls 14 and 15.

Here, the main body 10 is not limited to the rectangular parallelepiped shape shown in FIG. 1 and the like in its shape, and may be configured in various shapes such as a cylindrical shape.

In embedding the main body 10 in the ground, the main body 10 is formed by digging and then installing a rubble compaction layer 16 on the bottom thereof, and placing the main body 10 on the upper part and then backfilling the main body 10. It is to be embedded in the ground so that the main body 10 is firmly fixed.

In addition, the top height of the main body 10 is lower than or equal to the road surface of the sidewalk (R1) and the roadway (R2) so that the rainfall runoff flowing along the sidewalk (R1) and the roadway (R2), that is, the top of the body (10) The upper and rear walls 12 and 13 and the left and right walls 14 and 15 of the main body 10 are overflowed so as to flow into the planting and filtering space S1.

As such, the main body 10 may allow the rainfall runoff to naturally flow in by the position thereof, but is not limited thereto. However, the main body 10 may be connected to a separate inlet pipe through which the rainfall runoff flows. .

The main body 10 may be made of various materials such as iron, plastic, concrete, and may be selectively configured in consideration of site conditions.

On the other hand, the collection chamber 20 is a component mounted on the planting material and filtration space (S1) of the main body 10 may be manufactured separately and combined with the main body 10, but is integrally configured with the main body 10 It is desirable to.

The collection chamber 20 is provided with a collecting space S2 for collecting inflow water including rainfall outflow therein, and may be manufactured in various shapes like the main body 10 described above, and formed in a rectangular parallelepiped as shown in the example. If so, the water collecting space S2 may be formed by the bottom plate body 21, the front and rear walls 22 and 23, and the left and right walls 24 and 25.

In addition, the collection chamber 20 is composed of a bottom plate 21 and one left wall 24 so that the collecting space S2 is the bottom plate 21 and one left wall 24, and the It may be formed by any one of the wall 15 and the front and rear walls 12 and 13 of the left and right walls 14 and 15 of the main body 10.

The collecting chamber 20 is installed at a position relatively lower than the upper end of the main body 10 in the planting and filtering space (S1) of the main body 10. That is, the bottom plate body 21 of the collecting chamber 20 is installed at a position higher than the bottom plate body 11 of the main body 10 and lower than the upper end of the front and rear walls 12 and 13 and the left and right walls 14 and 15. The front and rear walls 22 and 23 and the left and right walls 24 and 25 have upper ends lower than upper ends of the front and rear walls 12 and 13 and the left and right walls 14 and 15 of the main body 10. .

The upper portion of the sump chamber 20 is also opened to allow the inflow water including rainfall runoff to flow in. The opening is preferably covered by a grating 26. The grating 26 is intended to prevent the floating material having a predetermined size or more contained in the rainfall runoff to be introduced into the collecting space S2.

In addition, the water collection chamber 20 may include the overflow passage 60 and the drain passage 70, and the overflow passage 60 is not shown in the drawings, but the wall 22 of the collection chamber 20 is formed. , 23, 24, 25 may be composed of the overflow hole perforated in any one of the wall through the wall of the collection chamber (20).

At the inlet side of the overflow passage 60, it is preferable that the filter medium 61 is filled in order to prevent non-point pollutants such as suspended substances collected in the tree vegetation layer 30 from entering the collecting space S2. Do.

The filter medium 61 is not limited to the material and non-point pollutants, including suspended solids and the like while passing through the water particles may be used any filter medium that can be filtered, preferably using a mesh, more preferably Is semi-permanent and can be recycled and made of stainless steel to resist corrosion by water.

The drain passage 70 is connected to the lower end of the collection chamber 20 and may be connected to a manhole or collection well 3 installed between the sidewalk R1 and the driveway R2. The drainage passage 70 is the collection chamber 20 and the manhole or the sump (3) according to the conditions of the installation place of the tree structure structure for the construction of the water circulation environment according to the present invention as shown in FIG. It can be installed linearly or by-pass between them.

Here, although not shown in the drawing, the drain passage 70 may be configured to reverse the flow of water to flow in only one direction. This prevents rainwater from flowing back from the manhole or sump 3 during the rainy season during the rainy season as the drain passage 70 is connected to the manhole or the sump 3 so that the nonpoint pollutant substances included in the rainwater may be collected. It is to prevent the inflow into the chamber 20 and the main body 10.

As described above, the present invention is provided with the above-mentioned collecting chamber 20 and the overflow passage 60 lower than the upper end of the collecting chamber 20 and higher than the lower end of the collecting chamber 20. The initial rainfall effluent included is filtered through the downward and upward flow from the main body 10 to flow into the collection chamber 20, and the rainfall effluent containing a small amount of non-point pollutants after an initial rainfall is initially Since the main body 10 is saturated by the rainfall, the main body 10 is naturally guided directly into the collection chamber 20 without downward and upward flow in the main body 10 so that an optimal water circulation environment can be established such as effectively treating non-point pollutants. Will be.

On the other hand, when the rainfall continues, or the rainfall runoff is rapidly increased due to heavy rain, the water level of the rainfall runoff flowing into the planting and filtering space (S1) of the main body 10 is higher than the upper end of the main body side wall 13, the main body Rainfall outflow water introduced into the planting and filtration space (S1) of (10) flows into the collecting chamber 20 to flow into the collecting space (S2). Therefore, even if the rainfall runoff increases rapidly, the rainwater can be stored and discharged in the main body 10 and the collection chamber 20, thereby preventing flooding.

Even in this case, the rainfall effluent flows directly into the collecting space S2 of the collecting chamber 20 without undergoing the downward filtration process and the upward filtration process as described above.

In particular, in the present invention, the mesh frame 27 is further configured below the collection chamber 20, and the mesh frame 27 is embedded in the bottom of the collection chamber 20 to be attached to and detached from the collection chamber 20. It is composed of a net, and the inside of the filter medium (28, 29) is to be filled. That is, the mesh frame 27 filled with the filter material 28 and 29 is embedded in the catchment chamber 20 so as to be detachable from the catchment chamber 20 so that rainfall runoff is discharged to the drain passage 70 before being discharged and discharged. By going through filtration it is to almost completely remove the non-point pollutants contained in rainfall runoff.

Here, the mesh frame 27 can be attached to or detached from the submerged chamber 20 when the filter media 28 and 29 inside the mesh frame 27 become blocked and the water circulation is interrupted. (27) to replace the filter medium (28, 29), in some cases, if there is a lot of rainfall by separating the mesh frame (27) from the immersion chamber 20 to facilitate the flow of rainfall runoff by flooding This is to prevent.

Here, in the mesh network constituting the mesh frame 27, the diameter of the mesh is smaller than the gap of the grating 26, and the diameters of the filter media 28 and 29 are larger than the mesh of the mesh network. Valid That is, the first large particles are filtered by the grating 26, secondly by the mesh frame 27, the rainfall runoff flowing into the mesh frame 27 is the filter material 28, 29 Is used to filter foreign matter by adsorption.

The shape of the mesh frame 27 will vary depending on the shape of the water collecting chamber 20. Since the water collecting chamber 20 is presented as a hexahedron shape in FIG. 1, the mesh frame 27 also has a hexahedron shape. It is configured to be mounted on the lower inner periphery of the collecting chamber (20).

That is, the mesh frame 27 is formed by a six mesh mesh as shown in Figure 4a, preferably the upper surface (27-1) is configured to open and close the filter medium (28,29) Is to allow for free replacement.

The filter frame of various materials may be embedded in the mesh frame 27, the present invention proposes a filter medium (28, 29) including, for example. That is, only the scoria 28 may be filled into the mesh frame 27 as a filter material. In addition, the filter ball 29 to be described below may be further blended.

The scoria 28 is a kind of volcanic products. In Jeju Island, there are many Koreans called volcanic eruptions, also called Song. Jeju Island on Jeju Island is a volcanic rock material that contains volcanic rock, volcanic sand and other volcanic ashes. About 75% of the components of SK Korea are silicon oxide (SiO₂), aluminum oxide (Al₂O₃) and iron oxide (Fe₂O₃). In addition, calcium oxide (CaO), magnesium oxide (MgO), potassium oxide (K ₂O) and sodium oxide (Na₂O) and nickel oxide (TiO₂). The shape of the sea Korea is porous and its specific surface area is about 100m₂ / g, which is relatively large, providing a good environment for microorganisms to grow.

In addition, S Korea has physical and chemical and biological stability, high mechanical strength and durability, there is an economic advantage that can be used to collect natural materials. That is, as the filter medium 28 is used as the filter medium, it is possible to filter by the adsorption of organic matter. That is, non-point pollutants are treated by removing organic matters from rainfall runoff water flowing out through the collection chamber 20.

In addition, in the present invention, as shown in FIG. 4B, the filter ball 29 may be further filled with the filter material 28 in addition to the screed 28.

Here, the filter ball 29 is characterized in that it is blended with 20 to 40 parts by weight of steelmaking slag, 5 to 15 parts by weight of water, and 0.5 to 0.10 parts by weight of hardener to have a ball shape. In other words, the filter ball 29 is manufactured in a spherical shape to form a constant particle by mixing the peat, steelmaking slag, water, soil hardener through a firing step.

The steelmaking slag can be divided into converter slag and electric furnace slag. The converter slag is a slag produced when melting raw steel, and is different from the electric furnace slag produced when melting scrap iron. Direct reduction of CAHs or reduction of hydrogen ions through oxidation can be expected. Steel slag is essentially lighter than iron and is separated by the difference in specific gravity, so it contains little heavy metal and thus has low environmental hazard.

The peat is a peat, such as moss, reeds, sedges and plants, or woody fluids, such as pine and birch, are thickly deposited in the basin, and are decomposed and altered by biochemical changes such as fungi in the presence of water. Peat is broadly included in one type of coal, but is generally distinct from coal.

Unlike peat, which is buried underground like coal, which has been fished under acupressure and geothermal action for many years, the main components of the plant are lignin and cellulose, which are mainly formed by decomposition in the surface. In the present invention, peat includes all kinds of peat, but not limited to tundratan, peat, wood peat and the like.

Thus, the filter ball 29 is to reduce the chlorine-based aliphatic carbohydrates (CAHs) as a hardly decomposable substance, mainly made of steel slag and peat to induce dechlorination. In other words, the organic matter is decomposed by the adsorption 28 by adsorption, but in this case, the chlorine-based aliphatic carbohydrates (CAHs) may be discharged together with the treated water as it is a hardly decomposable substance. It is intended to remove decomposable and hardly decomposable organic matter by using.

In particular, the filter ball 29 is provided in the form of a ball by firing by appropriately mixing water and soil hardener in the steelmaking slag and peat, so that the porosity decreases due to microbial propagation due to long time reaction. By preventing the flow of the fluid in the mesh frame 27 is prevented is to control the wall effect (water flowing through the wall). That is, by forming the appropriate pores in the mesh frame 27 by the ball-shaped filter ball 29 is to reduce the organic matter removal efficiency or prevent clogging.

In this way, the filter ball 29 is a mixture of the steelmaking slag and the peat to provide a suitable blending ratio in producing a ball form, the compounding ratio is limited to 20 to 40 parts by weight of steelmaking slag 100 parts of peat Do. If the blending ratio of the steelmaking slag exceeds 40 parts by weight or less than 20 parts by weight, the removal rate of the chlorine-based aliphatic carbohydrate is lowered and thus limited.

On the other hand, the tree vegetation layer 30 is laminated in the planting and filtering space (S1), as shown in Figures 1 to 3, the upper media layer 41 and the lower media layer 42 and the soil layer 50 It may be configured to include).

The lower layer filter layer 42 is used for downward filtration and upward filtration, and the lower layer filter layer 41 may use sand and / or gravel.

The soil layer 50 may use a mixed soil or nutrient soil for the local soil or vegetation.

The upper media layer 41 may be composed of gravel, but because the specific surface area has a large porosity, wood chips (to improve the removal efficiency of particulate and dissolved contaminants in adsorption and filtration of fine soils or heavy metals) wood chip) may be used, or crushed stone may be used.

Hereinafter will be described the action of the planting box planting trees enhanced in the non-point source treatment capacity according to the present invention configured as described above.

The tree planting box according to the present invention is installed on the vegetation zone between the sidewalk (R1) and the roadway (R2) as shown in Figure 5 is installed on the sidewalk (R2) side which is a typical roadside installation area.

In the installation of the main body 10, the rainwater runoff flowing on the sidewalk (R1) or the roadway (R2) at the time of rainfall is installed so as to be introduced into the planting and filtering space (S1) of the main body 10 and the drainage The passage 70 is installed to be connected to the manhole or the sump 3.

At this time, if necessary, it is also possible to connect the rainfall outflow water inlet pipe to the main body 10 separately.

The vegetation (P) to be planted in the main body 10 is laminated to the lower layer filter layer 42 and the soil layer 50 in the planting and filtering space (S1) of the main body 10, the upper layer filter layer 41 It is planted in the soil layer 50 before laminating, and then the upper layer filtering layer 41 is laminated on the soil layer 40.

In addition, the manhole or the sump (3) can be installed in advance before using the existing installation or planting the tree planting box according to the invention.

Rainfall runoff water generated during the rain in the installation is completed, the overflow of the front and rear walls 12, 13 and the left and right walls 14, 15 of the tree planting box body 10 to the planting and filtering space (S1) Inflow.

Rainfall effluent flowing into the planting and filtration space (S1) is filtered downward while passing through the upper filter layer (41), and the rainfall effluent passing through the upper filter layer (41) is the soil layer (50) It is filtered downward while passing downward, and is filtered downward downward while passing downwardly through the lower media layer 42.

Rainfall outflow water filtered downward through the lower media layer 42 is filled from the bottom of the planting and filtration space (S1).

Rainfall runoff from the bottom of the planting and filtration space (S1) is again filtered through the bottom filter layer 42 and the soil layer 50 and the upper filter layer 41 upward again.

Thus, the rainfall runoff flowing into the planting material and the filtration space (S1) of the main body 10 is filtered downward while passing downward through the upper media layer 41, the soil layer 50 and the lower media layer 42, It is filtered from the bottom of the planting material and the filtration space (S1) of the main body 10 is filtered upward to remove the non-point pollutants contained in the rainfall effluent sufficiently. That is, in the case of the initial rain with a high content of non-point pollutants, the non-point pollutants are filtered out by the natural flow in the main body 10.

Here, when the water level of rainfall runoff rising from the lower end of the planting and filtration space (S1) of the main body 10 reaches the upper media layer 41 and the overflow passage 60, the rainfall runoff flows through the overflow passage 60 The water flows through and flows into the water collecting space S2 of the water collecting chamber 20 to be collected.

At this time, since the filter medium 61 is provided at the inlet side of the overflow passage 60, the non-point contaminant such as the suspended solids collected in the upper filter layer 41 is introduced into the collecting space S2. After filtration once more by the flow into the collecting space (S2) of the collecting chamber (20). Therefore, the non-point pollutant is sufficiently removed in the rainfall effluent collected in the collecting space S2 of the collecting chamber 20.

When this process has elapsed, a certain time passes and the rainwater contains less nonpoint source than the initial rainwater, and the rainwater flows directly because the planting material and the filtration space S1 of the main body 10 are saturated. The water flows through the passage 60 and flows into the water collecting space S2 of the water collecting chamber 20. That is, after a certain time has elapsed in the initial rainwater, the rainwater containing less nonpoint source naturally passes only through the filter medium 61 of the overflow passage 60 so as to flow into the collection chamber 20 to be discharged to the outside. It is possible to increase the treatment efficiency of nonpoint source through natural rainwater flow.

On the other hand, when the rainfall continues, or the rainfall runoff is rapidly increased due to heavy rain, the water level of the rainfall runoff flowing into the planting and filtering space (S1) of the main body 10 is higher than the upper end of the main body side wall 13, the main body Rainfall outflow water introduced into the planting and filtration space (S1) of (10) flows into the collection space (S2) by overflowing the collection chamber (20).

Therefore, even if the rainfall runoff increases rapidly, the rainwater can be stored and discharged in the main body 10 and the collection chamber 20, thereby preventing flooding. Even in this case, the rainfall effluent flows directly into the collecting space S2 of the collecting chamber 20 without undergoing the downward filtration process and the upward filtration process as described above.

Thus, the rainfall runoff flowing into the collecting space S2 of the collecting chamber 20 is finally passed through the mesh frame 27 and drained through the drainage passage 70 to the manhole or the sump 3.

In this case, foreign matters having large particles are filtered out by the mesh frame 27, and degradable and hardly decomposable organic substances are also removed by the filter media 28 and 29 in the mesh frame 27 to the manhole or the sump 3. Rainwater runoff that is drained has almost eliminated nonpoint pollutants, so that it can be recycled as heavy water. That is, the present invention maximizes the treatment efficiency of non-point pollutants by filtering rainfall runoff water primarily by downward, upward flow, and secondarily by the mesh frame 27.

On the other hand, according to an embodiment of the present invention, the collecting chamber 20 is lower, that is, the bottom plate body 21 of the collecting chamber 20, the collecting and filtering of the collecting space (S2) and the main body 10 One or more pitcher passages 80 communicating with the space S1 may be further included.

The water permeable passage 80 may be composed of a plurality of perforation holes perforated in the bottom plate body 21 of the collection chamber 20, or may be composed of a plurality of water permeable pipes penetrating the bottom plate body 21.

Rainfall outflow water introduced into the collection space (S2) of the collection chamber 20 is drained to the outside through most of the drain passage 70, but a part of the planting of the main body 10 again through the water passage passage (80) It is provided as water necessary for vegetation of the vegetation (P) planted in the soil layer 50 is stacked in the filtration space (S1) to ensure sufficient moisture for the growth of planted vegetation (P) plant (P) can grow actively.

In addition, according to an embodiment of the present invention, the body 10 may further include a ground permeable passage 90 communicating with the ground at the bottom thereof, that is, the bottom plate body 11 of the body 10. The underground water passage 90 is to allow the rainwater discharged water remaining in the planting material and the filtration space (S1) of the main body 10 into the ground, an excessively large amount in the planting and filtration space (S1). Rainfall runoff is to prevent the long-term retention of the planted tree (P) due to excessive moisture.

The underground water passage 90 may be composed of a plurality of underground water holes perforated in the bottom plate body 11, or may be composed of underground water pipes penetrating the bottom plate body 11.

As described above, the above-described invention utilizes the tree space to maximize the treatment efficiency of the non-point pollutant as well as the water circulation environment.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the invention.

10: main body 20: collection chamber
27: mesh frame 28: Korea
29: filter ball 30: tree vegetation layer

Claims (10)

A main body which is open at an upper portion and a planting and filtering space is formed therein;
It is installed at a position lower than the upper end of the main body in the planting and filtration space, the catchment space for collecting the inflow water therein and the upper flow passage and the collecting space communicating the upper portion of the planting and filtration space and the collecting space A collecting chamber provided with a drain passage for draining the inflow water;
A mesh frame mounted below the collection chamber and filled with a filter material therein; And
The tree planting box is enhanced, characterized in that it comprises a; planting and filtering space laminated tree vegetation layer.
The method of claim 1,
The mesh frame,
It is internal to the removable bottom of the collection chamber, the whole surface is composed of a mesh network, the filter material is a tree planting box reinforced reinforced non-point pollution treatment, characterized in that the larger diameter than the mesh of the mesh network.
The method of claim 2,
The mesh frame is a tree planting box strengthening the non-point pollution treatment, characterized in that the top surface is configured to open and close.
The method of claim 1,
The filter material is a tree planting box strengthening the non-point pollution treatment, characterized in that it comprises a s Korea.
The method of claim 3,
The filter material is a tree planting box with enhanced non-point pollution treatment ability, characterized in that the filter ball is further blended with 100 to 12 parts by weight of steelmaking slag 20 to 40 parts by weight, water 5 to 15 parts by weight, curing agent 0.5 to 0.10 parts by weight. .
The method of claim 1,
The tree vegetation layer is
Upper and lower media layers stacked on the top and bottom of the planting and filtration space, respectively; And a soil layer stacked between the upper and lower media layers, wherein the tree planting box has enhanced non-point pollution treatment.
The method according to claim 6,
The upper layer of media
Planting box planting trees with enhanced non-point pollution treatment, characterized in that composed of crushed stone.
The method of claim 1,
The collecting chamber,
The tree planting box strengthening the non-point pollution treatment capacity further comprises at least one water passage for communicating the water collecting space and the planting and filtration space of the body at the lower portion.
The method of claim 1,
The main body is a tree planting box strengthening the non-point pollution treatment capacity, characterized in that the ground permeable passage is formed in communication with the ground.
10. A tree space composition structure of a road using a tree planting box having enhanced non-point pollution treatment according to any one of claims 1 to 9.

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