KR20160148949A - Facilities for decreasing non-point source - Google Patents

Facilities for decreasing non-point source Download PDF

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Publication number
KR20160148949A
KR20160148949A KR1020150085781A KR20150085781A KR20160148949A KR 20160148949 A KR20160148949 A KR 20160148949A KR 1020150085781 A KR1020150085781 A KR 1020150085781A KR 20150085781 A KR20150085781 A KR 20150085781A KR 20160148949 A KR20160148949 A KR 20160148949A
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KR
South Korea
Prior art keywords
treatment
rainwater
vegetation
inflow
infiltration
Prior art date
Application number
KR1020150085781A
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Korean (ko)
Inventor
윤빛나
최경식
Original Assignee
케이에스테크 주식회사
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Priority to KR1020150085781A priority Critical patent/KR20160148949A/en
Publication of KR20160148949A publication Critical patent/KR20160148949A/en

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/04Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls
    • B01D24/045Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls with at least one flat vertical wall
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2221/00Applications of separation devices
    • B01D2221/12Separation devices for treating rain or storm water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F2201/00Details, devices or methods not otherwise provided for
    • E03F2201/10Dividing the first rain flush out of the stormwater flow

Abstract

The present invention relates to a facility to reduce non-point pollution using a flow rate distribution cell and, more specifically, relates to a facility to reduce non-point pollution using a flow rate distribution cell properly using treatment by vegetation and treatment by infiltration in accordance with an amount of rainfall to treat a non-point pollution source. According to the present invention, the facility comprises: a rainwater inlet part (10) having an inlet hole (11) on one side to receive and store rainwater flowing to a rainwater pipe (50) through the inlet hole (11); a rainwater discharge part (20) to discharge the received rainwater through a discharge hole (21); and a rainwater treatment part (30) installed between the rainwater inlet part (10) and the rainwater discharge part (20). The rainwater treatment part (30) comprises: a rainwater treatment block (31) of a box body having an opened upper part, and a plurality of infiltration holes (32) formed on a bottom surface; and a flow rate distribution cell (35) inserted and installed inside the rainwater treatment block (31), having a honeycomb shape to make a plurality of vertical hollow pipes close to each other and form each cell. As a top height of the vertical hollow pipes forming each cell of the flow rate distribution cell (35) is different from each other, a vegetation treatment part (36) formed by a vegetation layer is installed in the vertical hollow pipe with a small height; an infiltration treatment part (37) formed by a filtering member is installed in the vertical hollow pipe with a large height; and the rainwater stored in the rainwater inlet unit (10) is moved to any one of the vegetation treatment parts (36) formed in an input side of the flow rate distribution cell (35).

Description

[0002] Facilities for decreasing non-point sources using flow-
The present invention relates to a non-point pollution source reduction facility using a flow distribution cell, and more particularly, to a non-point pollution source reduction facility using a flow distribution cell, And the abatement facility.
Generally, the cause of water pollution is mainly caused by point pollutants discharged from point sources such as domestic sewage, industrial wastewater, and livestock wastewater, and discharge points such as cities, roads, and agricultural land, It can be divided into pollutants.
Point pollutants emitted from point pollution sources are installed in separate purification facilities or wastewater treatment facilities in homes, factories, and livestock farms, so that the pollutants are purified to a certain extent. However, in the case of nonpoint pollutants, It remains on the surface of the earth and becomes a major cause of water pollution due to rainwater flowing into public water bodies such as rivers and ground water in rainy weather.
In order to overcome water pollution caused by such nonpoint pollutants, various methods of treating nonpoint pollutants have been introduced.
For example, methods using wetlands and reservoirs, baffle type treatment facilities, and filtration type treatment facilities are introduced.
However, the method using wetlands and reservoirs requires a relatively large space to accommodate and purify the initial rainfall that flows along with non-point pollutants from non-point pollution sources within a certain range. There is considerable difficulty in doing so.
In addition, non-point pollutant processing devices such as baffle-type processing facilities and filtration-type processing facilities can not be expected to achieve high efficiency in removing fine solids and are physically processed, There is a problem that it is difficult to remove various contaminants such as salts.
On the other hand, in the case of non-point pollutants, there is a considerable difference in the amount of the inflow depending on the amount of rainfall rather than the constant inflow of contaminants. Nevertheless, the conventional non-point pollutant treatment facility can not cope with such fluid rainfall properly. Therefore, when the rainfall temporarily increases due to heavy rainfall, the non-point pollutant treatment facility can not remove the non-point pollutant, There was a problem.
In order to solve this problem, Patent No. 0958326 discloses an initial excellent treatment apparatus using infiltration and vegetation.
The patented technology consists of a first reservoir, a vegetation treatment unit, an infiltration treatment unit, and a second reservoir, so that the treatment step can be suitably utilized by vegetation treatment and infiltration depending on the flow rate, .
However, since the above-mentioned technology moves from one side of the vegetation treatment unit along the surface of the soil layer through which the vegetation is formed after passing through the first outflow path during the non-point pollution source treatment in the vegetation treatment unit, the vegetation is moved before filtration, Since the filtration from the other side is performed a lot, the filtration amounts in all parts of the vegetation treatment part are different from each other, and thus it is difficult to uniformly discharge through the bottom hole, so that the nonpoint source can not be effectively treated.
In addition, since the above-described technology concentrates rainwater on the other side of the vegetation treatment unit, the rainwater moves from the other side of the vegetation treatment unit to the infiltration treatment unit, thereby making it difficult to uniformly penetrate the infiltration treatment unit. It is possible to move to the adjacent second reservoir beforehand, which makes it difficult to effectively treat the nonpoint source.
Registered Patent Publication No. 0958326 (2010.05.10, Initial Strong Treatment Apparatus Using Penetration and Vegetation)
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method and apparatus for effectively distributing rainwater through a flow distribution cell and uniformly controlling the penetration rate of rainwater, The present invention provides a non-point pollution abatement facility using a flow distribution cell.
The present invention also relates to a method and apparatus for controlling a non-point source of pollutants by using a flow distributing cell for effectively treating a non-point pollution source through a penetration guide tube having a plurality of holes on a surface thereof, And to provide pollution abatement facilities.
According to an aspect of the present invention, there is provided an inflow port (10) having an inflow port (11) formed at one side thereof and inflowing and storing storm water flowing into the inflow path (50) through the inflow port (11) A non-point pollution abatement facility (20) including an abdomen discharge unit (20) for discharging the inflowing rainwater through the discharge port (21) and a rainwater treatment unit (30) installed between the rainwater inflow unit The abattoir treatment unit 30 includes an abattoir treatment block 31 having an upper open portion and a plurality of infiltration holes 32 formed on a bottom surface thereof, And a vertical hollow tube of the flow distribution cell 35 is formed in a honeycomb shape so as to form respective cells adjacent to each other. The vertical height of the vertical hollow tube constituting each cell of the flow distribution cell 35 is different, Among them, the lower vertical hollow tube is composed of vegetation layer The vertical hollow tube is provided with a treatment unit 36 and a penetration treatment unit 37 formed of a filter medium is installed in a highly formed vertical hollow tube. The stormwater stored in the stormwater inflow unit 10 is supplied to the vegetation treatment unit (36). ≪ IMAGE >
The vegetation processing unit 36 may be formed by being distributed in a center portion and an outer portion toward the exit side in a large number so as to be gathered adjacently to each other at the central portion of the inlet side of the flow distribution cell 35.
The vegetation processing unit 36 and the infiltration processing unit 37 provided in the flow distribution cell 35 may be regularly or irregularly arranged.
The inflow portion of the infiltration processing portion 37 is accommodated in the web material web 37a made of a mesh body and is vertically hollowed It is preferable to be inserted into the inside of the pipe.
A plurality of infiltration guide pipes 40 having a plurality of distribution holes 41 are formed horizontally on the surface of the flow distribution cell 35 so as to distribute the storm that has passed through the flow distribution cells.
The infiltration guide pipe 40 is formed as a single layer or a multi-layer, and when the infiltration guide pipe 40 is formed as a multi-layer, the infiltration guide pipes 40 installed in the respective layers are installed so as to cross each other.
According to the nonpoint pollution abatement facility using the flow distribution cell having the above-described configuration, it is possible to treat the nonpoint pollution source through the vegetation part and the infiltration part according to the amount of rainfall, The infiltration rate of the non-point source can be controlled as uniformly as possible. Thus, the non-point source can be effectively treated. In particular, the infiltration speed can be stabilized by distributing the infiltration again through the infiltration guide pipe.
FIG. 1 is a perspective view of a non-point pollution abatement facility using a flow distribution cell incorporating a storm treatment unit according to the present invention,
FIG. 2 is a perspective view of a non-point pollution abatement facility using a flow dividing cell having a deteriorated treatment section according to the present invention,
FIG. 3 is a cross-sectional view of a nonpoint pollution abatement facility using a flow distribution cell incorporating a storm treatment unit according to the present invention,
Figure 4 is a perspective view of a flow distribution cell according to the present invention,
Fig. 5 is a sectional view taken along the line AA of Fig. 4,
FIG. 6 is a view illustrating an installation state of the infiltrating guide pipe according to the present invention,
FIG. 7 is a cross-sectional view of a flow distribution cell in a state where the infiltration guide tube is installed according to the present invention;
FIG. 8 is a sectional view of a nonpoint pollution abatement facility provided with a penetration guide pipe according to the present invention,
FIG. 9A is a plan view of a nonpoint pollution abatement facility showing a moving path of an initial excellent storm surge according to the present invention,
Figure 9b is a top view of a non-point pollution abatement facility showing an excellent migration pathway in the case of high abundance in accordance with the present invention.
Hereinafter, a nonpoint pollution abatement facility using a flow distribution cell according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 9B, the nonpoint pollution abatement facility using the flow distribution cell according to the present invention is an apparatus for improving and preserving the river water quality by minimizing the outflow of nonpoint pollution sources discharged to the river during the initial rainfall, The storm sewer system according to the present invention is characterized in that the storm sewer system comprises a storm water inflow section 10, a storm drain section 20 and a storm water treatment section 30, Lt; / RTI >
In the case of initial rainfall, it is treated through vegetation treatment. In the case of rainfall that can not be treated through vegetation treatment, it is treated through infiltration process. If rainfall occurs, it is directly drained and treated.
For this, the honeycomb-shaped flow distribution cell 35 is provided in the present invention, and it is characterized in that the rainwater can be effectively distributed and infiltrated during the initial rainfall.
The stormwater inflow section 10 is installed adjacently to one side of the storm ventilator 50 to receive stormy rainfall and includes an inlet 11 at one side for inflow of stormwater flowing into the stormwater duct 50 And an outlet 12 is formed on the other side to move the stored storm to the stormwater treatment section 30. [
The storm drainage unit 20 is a place where stormwater that does not infiltrate through the flow distribution cell 35 flows due to a large amount of rainfall and flows into the storm drainage hole 33 formed on the exit of the stormwater treatment block of the stormwater treatment unit 30, And the discharged stormwater is discharged through the discharge port 21 formed at one side.
The storm inflow section 10 and the storm drain section 20 have a structure similar to that of a known structure, and a steel grating is provided on each open top.
The abattoir treatment unit 30 is installed between the storm inflow unit 10 and the storm drain unit 20 and comprises a storm processing block 31 and a flow distribution cell 35.
In the bottom surface of the bottom wall, a penetration hole 32 is formed to penetrate through the bottom of the bottom of the flow path distribution cell 35, Respectively.
1, the excellent processing block 31 may be integrally formed with the superior inflow section 10 and the outflow discharge section 20, or may be formed separately and molded as shown in FIG.
1, the outflow port 12 and the fine moving hole 33 are formed as one hole. In the case of being formed separately as shown in FIG. 2, the outlet port and the superior moving hole may be coupled to each other And the like.
The flow distribution cell 35 is installed to be inserted into the abattoir treatment block 31. The space between the flow distribution cell 35 and the abattoir treatment block 31 is filled with filter media such as gravel or sand, The cell 35 is installed so as not to flow.
As shown in FIG. 4, the flow distribution cell 35 is formed in a honeycomb shape such that a plurality of vertical hollow tubes are adjacent to each other, and each vertical hollow tube forms a respective cell. The flow distribution cell 35 may be formed by joining a plurality of vertical hollow tubes adjacent to each other, or may be integrally formed to form a plurality of vertical hollow tubes.
The flow distribution cell 35 is formed of a synthetic resin material to prevent breakage as well as manufacturing convenience. The flow distribution cell 35 is formed to have a predetermined size for convenient construction as well as movement and storage, One can be inserted or installed, or two or more can be inserted and installed successively.
As shown in FIGS. 4 and 5, the flow distribution cells 35 are formed such that the vertical height of the vertical hollow tubes constituting each cell is different from each other, and the lower vertical hollow tube is formed with a vegetation treatment unit 36, and a penetration treatment unit 37 composed of a filter medium is installed in the vertically formed hollow tube.
The reason why the vegetation treatment section 36 is formed in the lower vertical hollow tube is that the rainfall during the initial rainfall is first transferred to the vegetation treatment section 36 so that it can be filtered through the vegetation treatment section 36 and permeated into the ground, When rainfall occurs at such a level as not to be processed by the treatment section 36, the rainfall is filtered through the infiltration treatment section 37 installed at a position higher than the vegetation treatment section and infiltrated into the ground.
The vegetation treatment unit 36 is composed of a vegetation layer. For the composition of the vegetation layer, the vegetation treatment unit 36 is stacked in the order of gravel, soil, and corroded ground in the order of the well-known laminated structure.
In addition to supplying the nutrients required for the growth of vegetation, the vegetation plays a role of filtering and adsorbing the suspended solids and heavy metals contained in the precipitation, and the vegetation absorbs the nitrogen and phosphorus present in the soil, It acts as a biodegradable material.
The permeation treatment unit 37 may be formed by laminating filter media such as gravel and gravel, and may be formed of various media such as sand, gravel, garnet, activated carbon, diatomaceous earth, and anthracite.
At this time, the filter material of the infiltration processing unit 37 may be laminated inside the vertical hollow tube, but the filter material is accommodated in the filter material net 37a, Insert the filter media into the vertical hollow tube.
Therefore, by inserting the filter material into the vertical hollow tube while the filter material is accommodated by the filter material network, the filter material can be easily introduced and extracted, thereby effectively performing the operation.
Here, the storm stored in the storm inflow section 10 is formed to be moved to any one of the vegetation processing sections 36 formed on the inlet side of the flow distribution cell 35 as the treatment should be performed through the vegetation processing section 36.
For this, an excellent moving hole 33 is formed in a portion adjacent to the vegetation processing portion in the abattoir treatment block 31, and the fine moving hole 33 is formed in the other side of the superior inflow portion 10, And an outlet 12 formed for this purpose.
Here, the vegetation processing unit 36 formed in the flow distribution cell 35 is formed by being gathered at a central portion on the inlet side of the flow distribution cell 35, and is uniformly or non-uniformly distributed to the central portion and the outer portion toward the outlet side do. The reason for this is to uniformly distribute the uniformly distributed unevenness in the process of moving to the inlet side of the flow distribution cell 35 so as to increase the flow rate penetrated into the ground, and to effectively infiltrate.
The stormwater flowing into the storm inflow section 10 is first moved to the vegetation processing section formed at the entrance of the flow distribution cell 35 and the vegetation processing section is formed lower than the infiltration processing section, The treatment section 37 may be arranged in the flow distribution cells 35 regularly or irregularly.
At this time, the vegetation treatment section 36 should be installed adjacent to each other for movement of rain.
6 and 7, a plurality of infiltration guide pipes 40 having a plurality of distribution holes 41 are formed horizontally on the lower surface of the flow distribution cell 35. As shown in FIG.
The reason why the infiltration guide pipe 40 is formed is that the stormwater that has passed through the flow distribution cell 35 is distributed again through the distribution hole so that it can be uniformly penetrated to various places on the ground. That is, the stormwater that has passed through the early storm sewage treatment unit 36 is not infiltrated into the ground through the infiltration holes 32 located directly under the inflow site, but is distributed by the infiltration guide pipe 40 and drained to the ground through the adjacent infiltration holes. So that it can penetrate into a wider area.
At this time, the penetration guide pipe 40 may be formed as a single layer or a multi-layer, and when formed in a multi-layer structure, the penetration guide pipes installed in each layer cross each other to enhance the distribution efficiency of the excellent.
In this case, a hole is formed in a portion corresponding to both sides of the infiltration guide pipe 40 in the inflow section 10 and the outflow discharge section 20, and on both sides of the infiltration guide pipe 40, It is preferable that a cap 45 is installed to be inserted into the cap 45. [
The reason why the cap 45 is installed is that since the penetration guide pipe 40 is a hollow pipe, foreign matter such as water can be loaded on the surface or the distribution hole 41 can be blocked on the surface during long-term use, So as to clean the inside of the penetration guide pipe 40 after removing the cap at predetermined intervals. A separate cleaning mechanism may be used for cleaning, and the structure of the cleaning mechanism may be any structure capable of cleaning the interior of the penetration guide tube.
In the meantime, when the amount of storm that flows through the inlet is larger than the amount of storm that flows out through the outlet, the storm inflow section 10 according to the present invention is designed to discharge the storm, The floodgates 13 can be formed.
The float 13 should be lower than the height of the inlet 11 and should be located higher than the height of the outlet 12.
In the present invention, it is preferable that the partition wall 51 is installed in the gutter passage 50 so as to collect the flowing gravel and effectively flow into the inlet 11. The partition 51 should be installed between the inlet and the float.
In the rainfall process using the present invention,
The inflowing stormwater flows into the vegetation processing section (35) of the flow distribution cell (35) installed inside the storm processing block (31) through the outflow hole (12) 36).
Since the vegetation treatment unit 36 is made up of cells, when the vegetation treatment unit 36 is full of rainwater, the vegetation treatment unit 36 moves to another vegetation treatment unit adjacent to the vegetation treatment unit 36. This process is repeated and moves to a plurality of vegetation treatment units arranged in the flow distribution cell 35 After the rainwater is filtered through the vegetation treatment section, the water is drained through the penetration hole 32 and permeated into the ground.
If the rainfall amount is too large to be processed by the vegetation processing unit 36, the rainwater is stepped on the vegetation processing unit, and the rainwater moves to the infiltration processing unit 37 formed at a higher position. Through the arranged infiltration treatment section, the rainwater is filtered and then infiltrated into the ground via the infiltration hole (32).
When the rainfall amount is more than the heavy rainfall, the treatment of rainwater through the vegetation treatment unit and the infiltration treatment unit is maintained, and the rainwater moved to the rainwater treatment block 31 is moved to the direct rainwater outflow unit 20 and drained.
At this time, when the infiltration guide pipe 40 is provided, the fine filtered through the flow distribution cell 35 is re-distributed by the infiltration guide pipe 40 and then drained uniformly through the plurality of infiltration holes 32. Therefore, it is possible to stabilize the infiltration rate of the infiltration into the ground, thereby effectively treating the initial infiltration.
10: Strong inlet 11: Inlet
12: outlet 13:
20: Excellent discharge portion 21: Outlet
30: Excellent processing section 31: Excellent processing block
32: penetration hole 33: excellent movement hole
35: Flow distribution cell 36: Vegetation treatment section
37: Penetration processing section 37a:
40: penetration guide tube 41: distribution hole
45: cap 50: with a tube
51:

Claims (9)

  1. An inflow port 11 formed at one side of the inflow port 11 to receive and store storm water flowing into the storm water channel 50 through the inflow port 11, A nonpoint pollution abatement facility comprising a discharge section (20) and a rainwater treatment section (30) installed between the rainwater inflow section (10) and the rainwater discharge section (20)
    The abattoir treatment unit 30 includes an abattoir treatment block 31 having an upper open portion and a plurality of infiltration holes 32 formed on a bottom surface thereof and a box body, And a flow distribution cell (35) formed in a honeycomb shape such that the tubes are adjacent to each other to form respective cells,
    The upper and lower vertical hollow tubes constituting each cell of the flow distribution cell 35 are formed differently in height from each other. Among them, the lower vertical hollow tube is provided with a vegetation treatment unit 36 composed of a vegetation layer, An infiltration processing unit 37 composed of a filter medium is installed,
    Wherein the stormwater stored in the stormwater inflow section (10) is configured to be moved to any one of the vegetation processing sections (36) formed on an inlet side of the flow distribution cell (35) through the outlet (12) Abatement facility.
  2. The method according to claim 1,
    Wherein the vegetation treatment section (36) is formed so as to be gathered adjacently to the central portion of the inlet side of the flow distribution cell (35) and is distributed to the central portion and the outer portion toward the exit side. Pollution abatement facility.
  3. The method according to claim 1,
    Characterized in that the vegetation treatment unit (36) and the infiltration treatment unit (37) provided in the flow distribution cell (35) are regularly or irregularly arranged.
  4. The method according to claim 1,
    Characterized in that the storm inflow section (10), the storm drainage section (20), and the stormwater treatment block (31) are molded integrally.
  5. The method according to claim 1,
    Characterized in that the filter medium of the infiltration treatment part (37) is accommodated in a mesh net (37a) of a net and inserted into a vertical hollow tube.
  6. The method according to claim 1,
    And a plurality of infiltration guide pipes (40) having a plurality of distribution holes (41) formed on the surface thereof are horizontally provided on the lower part of the flow distribution cell (35) so as to distribute the storm that has passed through the flow distribution cell. Non - point pollution abatement facility using cell.
  7. The method according to claim 6,
    The penetration guide pipe (40) is formed as a single layer or a multi-layer,
    Wherein the infiltration guide pipes installed in the respective layers are provided so as to intersect with each other when the inflow guide pipes are formed in a multi-layered structure.
  8. The method according to claim 6,
    A hole is formed in a portion corresponding to both sides of the penetration guide pipe 40 in the storm inflow section 10 and the storm drainage section 20 and is inserted into both sides of the penetration guide pipe 40, Wherein a cap (45) is installed on the bottom of the flow distribution cell.
  9. The method according to claim 1,
    The inflow hole 13 is formed in the inflow hole 10 such that the inflow hole is filled with the inflow hole 11 so that the inflow hole is filled with the inflow hole 11, And the outlet port (12) is provided at a position higher than the height of the outlet port (12).
KR1020150085781A 2015-06-17 2015-06-17 Facilities for decreasing non-point source KR20160148949A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108166599A (en) * 2017-12-20 2018-06-15 花王生态工程股份有限公司 A kind of rainwater diafiltration harvests cleaning system
KR20210023456A (en) * 2019-08-23 2021-03-04 딥클라우드 주식회사 Rainwater retention structure for underground, and its construction method having planting environment and managing rainwater runoff

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100958326B1 (en) 2009-12-11 2010-05-17 (주) 한국엔피기술 Apparatus for treatment of first flush rainfall using osmosis and vegetation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100958326B1 (en) 2009-12-11 2010-05-17 (주) 한국엔피기술 Apparatus for treatment of first flush rainfall using osmosis and vegetation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108166599A (en) * 2017-12-20 2018-06-15 花王生态工程股份有限公司 A kind of rainwater diafiltration harvests cleaning system
KR20210023456A (en) * 2019-08-23 2021-03-04 딥클라우드 주식회사 Rainwater retention structure for underground, and its construction method having planting environment and managing rainwater runoff

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