KR101845864B1 - Highly efficient composite wetland system for rainwater runoff pollutant reduction - Google Patents

Abstract

The present invention relates to a highly efficient composite wetland system for reducing pollutants of rainfall effluent. The present invention increases the efficiency of processing pollutants included in rainfall effluent through an artificial wetland. The highly efficient composite wetland system for reducing pollutants of rainfall effluent comprises: a sedimentation site which is formed on a relatively upstream side to settle impurities included in rainfall effluent; a wetland unit which is formed to be able to purify water quality by removing organic pollutants while letting rainwater, flowing from the sedimentation site, flow; a guiding means which has one end portion, located in water on the rear end of the wetland unit to prevent floating matter, floating on a surface, from entering, and the other end portion arranged to be embedded in a boundary unit to guide water, purified by the wetland unit, to a downstream side; an underground flow wetland module unit which is connected to the other end portion of the guiding means and is arranged to be filled with a functional ceramic carrier to enable phosphorus included in the purified water to be removed by inserting the purified water, discharged through the guiding means, and discharging the purified water through a lower portion; and a discharge unit which has an outlet having one end portion, connected to a discharge side of the underground flow wetland module unit, and the other end portion forming an outlet in the same location as a low water level while the outlet is formed to have a diameter enabling inserted rainfall effluent to remain for a long time in the artificial wetland until the inserted rainfall effluent is discharged from a predetermined plan water level to the low water level.

Description

{Highly efficient composite wetland system for rainwater runoff pollutant reduction}

The present invention relates to a highly efficient composite wetland system for reducing pollutants in rainwater runoff, and more particularly, to a system and method for controlling rainfall runoff pollutant treatment efficiency through an artificial wetland, To a highly efficient composite wetland system for reducing pollutants in rainwater runoff.

In general, water pollutants are classified into point source and nonpoint source, which are adversely affecting water resources, and they are controlled using different treatment methods.

In other words, point pollution sources can be easily processed by constructing sewage treatment plants or wastewater treatment plants as limited pollution sources such as domestic sewage and industrial wastewater discharged from residential areas or industries, while non-point pollution sources are classified into agricultural land, pasture land, , Construction sites, waste disposal sites, roads, and so on, pollution occurs in rainy areas, which is a widespread pollution source.

Here, the treatment methods for reducing the non-point pollution sources include artificial wetlands, vegetation filtration basins, reservoirs, physical filtration facilities (filtration tanks, permeation tanks, Various processing apparatuses and techniques have been developed and commercialized.

Among them, the method of treatment by artificial wetland is emerging as an alternative method as a nonpoint source reduction technique using an ecologically healthy natural purification technique.

These artificial wetlands can treat non-point pollutants in cities or control rainfall runoff and artificially improve the purification ability of natural wetlands such as sedimentation, filtration, adsorption, decomposition of microorganisms and purification by vegetation plants. As the facility to reduce non-point pollutants, water quality management using man-made wetlands is economically advantageous because of the low cost of treatment, and the treatment method itself uses a part of the natural ecosystem and the removal of pollutants is efficient. Many studies have been carried out at home and abroad to apply natural purification function to water quality improvement.

However, in the conventional artificial wetlands, when a beam is not installed at a position where water enters and exits, the inflow / outflow of water becomes ineffective and the function as an artificial wetland becomes difficult. When the water enters and exits, The installation of the beam requires a lot of equipment cost and time, and the installation of the beam can interfere with the flow of the waterway.

On the other hand, if no beam is installed at the entrance to the wetland, only the water that flows into the wetland will flow out of the wetland when the water level is high. Therefore, only the influent water The amount of pollutants to be removed is reduced, the economical efficiency of the water purification function through the wetland is lowered, and the inflow / outflow of water is finished in the wetland even at the end of the rainfall and the water is continuously stored until the next rainfall. When the amount of rainfall decreases, there is no space for storing the water, and there is a risk of flooding.

In view of this, Patent Application No. 10-2010-0112786 has been filed for an eco-friendly wetland system for treatment of nonpoint pollutants.

Conventionally, a conventional artificial wetland system for treatment of non-point pollutants includes an inflow section formed so as to allow water mixed with non-point pollutants to flow through during rainfall, and a water purification section located on the opposite side from the inflow section, A first outlet portion formed to allow the water to flow out of the first outlet portion and a second outlet portion formed so as to allow the water to flow out of the first outlet portion and to allow the water flowing through the inlet portion to be temporarily stored, The method of claim 1 or 2, wherein the wetted pond is a wetland with a vegetation plant in which a settling pond is formed and a vegetation plant is planted with a higher topography than the settled pond. And the water discharged from the first outlet portion is discharged through the second outlet portion, Wherein the second outlet comprises a water level adjusting device which is buried under the first outlet and drains the water to adjust the water level of the water introduced into the wetland part to be maintained at a constant minimum level, A water supply pipe connected to one side of the water level control device so as to protrude toward the wetland part and installed so that water stored in the wetland part can be introduced into the water level adjusting device, And a drain pipe extending to the outlet of the water supply unit and draining the introduced water, wherein the water level adjustment device includes a case in which the internal space is divided into an inflow section, a water permeation section and a drainage section, A filter layer for purifying the water introduced through the water supply pipe after being purified by the water supply unit, And a drain pump for discharging the purified water through the filter layer to the drain pipe, the case comprising: a first partition dividing the internal space into the inflow section and the water permeation section; And a communication hole formed in the upper part of the first partition so that water in the inflow section can be moved to the permeable zone, and a lower portion of the second partition, And a flow regulating valve formed in the communicating pipe for regulating the amount of water supplied from the water permeable zone to the drainage zone.

However, in the conventional artificial wetland system for treating non-point pollutants as described above, the drainage pump is provided to discharge the purified water through the filter layer to the drainage pipe as described above, If the power supply is not provided or if it can not be driven due to a failure, the water is drained without going through the filter layer.

Further, in the conventional artificial wetland system for treating non-point pollutants, the non-point pollutant flows into the case through the water pipe through the wet paper portion composed of the settling paper, the vegetation wet paper and the settling pond, The filter layer must be clogged in a short time due to the inflow, which may result in a situation where the non-point pollutant can not be processed.

Patent application No. 10-2010-0112786, filing date November 12, 2010 The name of the invention; Eco-friendly wetland system for treatment of nonpoint pollutants

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to improve the treatment efficiency of pollutants contained in rainwater runoff through an artificial wetland, And to provide a highly efficient composite wetland system for reducing runoff pollutants.

It is another object of the present invention to overcome the above-mentioned problems, and it is an object of the present invention to provide a functional ceramic carrier for adsorbing and removing phosphorus at the rear end of an artificial wetland by modularizing the functional ceramic carrier, Which can be easily and quickly replaced with functional ceramic carriers according to the conventional artificial wetland system.

Other objects of the present invention will become apparent as the description proceeds.

In order to accomplish the above object, the present invention provides a high-efficiency composite wetland system for reducing rainfed runoff pollutants, comprising: a water level sensor connected to a river through an inlet formed adjacent to a river, A sedimentation paper formed at a relatively upstream side to sediment impurities contained in the rainfall runoff due to the inflow of the rainfall runoff from the low water level to the predetermined planned water level, and an organic pollutant during flowing the rainwater flowing from the sedimentation paper And the other end is located in the rear end of the wet paper web so that the suspended matter floating on the surface of the wet paper web is prevented from flowing to the downstream side in order to guide the water purified by the wet paper web part to the downstream side, And an induction means connected to the other end of the induction means, An underground flow wetland module unit having a functional ceramic carrier filled with purified water discharged from the upper part through the upper part to remove phosphorus contained in the purified water by being discharged from the lower part, And the other end is formed at the same position as the low water level, and the outlet is opened for 24 to 48 hours in the constructed wetland until the inflowed rainwater is discharged from the predetermined planned water level to the low water level And an outlet formed to have a diameter that allows the stay to be performed.

In addition, the wetland part of the highly efficient composite wetland system for reducing the rainwater effluent pollutant has adsorbed pathogenic microorganisms by inflow of rainwater runoff at a predetermined planned water level and decomposes the pathogenic microorganisms adsorbed at the low water level using solar energy And a wet zone is further formed so as to allow the water to flow.

As described above, according to the high-efficiency combined constructed wetland system for reducing the pollutants in the rainwater runoff according to the present invention, since the rainfall amount of the initial rainfall can be stagnated for a certain period of time, There is an effect that the treatment efficiency of the substance can be increased

Further, according to the high-efficiency composite wetland system for reducing rainwater runoff pollutants according to the present invention, since the functional ceramic carrier is included in the rear end portion of the artificial wetland to adsorb and remove phosphorus, the functional ceramic carrier Can be easily and quickly replaced.

FIG. 1 is a plan view showing a highly efficient combined wetland system for reducing rainwater runoff contaminants according to the present invention.
FIG. 2 is a cross-sectional view illustrating a high-efficiency composite wetland system for reducing pollutants in rainwater runoff according to the present invention.
FIG. 3 is a view illustrating an underground flow wetland module unit of a high-efficiency complex constructed wetland system for reducing rainwater runoff pollutants according to the present invention.

Hereinafter, an embodiment of a highly efficient combined wetland system for reducing pollutants in rainwater runoff according to the present invention will be described in detail.

First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

As shown in FIGS. 1 and 2, a highly efficient combined wetland system for reducing pollutants in rainwater runoff according to the present invention is characterized in that an initial rainfall flowing from a river is retained for 24 to 48 hours, So that the treatment efficiency of pollutants contained in the rainwater runoff through the constructed wetland can be increased.

That is, the high-efficiency composite wetland system 100 for reducing the pollutants of rainwater effluent according to the present invention includes an inflow section 60 formed adjacent to the river R and provided with a water gate 60 opened and closed by the water level sensor 50, (L) to a predetermined planned water level (H) by communicating with the river (R) through the rainwater outlet (70) to thereby cause the rainwater to flow relatively A wet paper web part 120 formed to be able to purify the water quality by removing organic contaminants while flowing rainwater flowing from the settling paper 110, 120 are disposed in the rear end water of the wet paper web part 120 and the other end is embedded in the boundary part S so as to prevent the floating matter floating on the surface from flowing into the downstream side in order to induce the water purified by the induction means 130 ) A purified ceramic carrier connected to the other end of the induction means 130 and discharged through the induction means from above and discharged from the lower portion to be filled with a functional ceramic carrier so as to remove phosphorus contained in the purified water One end of which is connected to the discharge side of the underground flow wetland module unit 140 and the other end is formed with an outlet 152 at the same position as the low water level L, 152 are formed to have a diameter that allows a stay to be carried out in the constructed wetland for 24 to 48 hours until the introduced rainfall water is drained to the low water level (L) at a predetermined planned water level (H) 150).

In addition, the wetland part 120 of the highly efficient combined wetland system for reducing the rainwater effluent pollutants adsorbs pathogenic microorganisms by the inflow of rainwater runoff at a predetermined planned water level H, A wet zone 160 is further formed to enable the pathogenic microorganisms to be degraded by solar energy.

The wet paper part 120 is formed of a shallow wet paper part 121 and a deep pond 123 so that organic pollutants can be removed first and secondarily to purify water quality.

Hereinafter, a highly efficient combined wetland system for reducing pollutants in rainwater runoff according to the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIGS. 1 and 2, the sedimentation paper 110 of the high-efficiency combined artificial wetland system 100 for reducing rainwater runoff pollutants according to the present invention is formed adjacent to a river R, The rainwater flowing into the river R through the inflow section 70 provided with the water gate 60 opened and closed by the detection sensor 50 inflows the rainwater to precipitate impurities such as sludge contained in the rainfall runoff As shown in Fig.

Here, the water depth of the sedimentation paper 110 is preferably set to a water depth of 45 cm to 90 cm so that the sediment can be easily cleaned without frequent cleaning of sediments over time.

The rising and falling of the water gate 60 are installed on the inflow section 70 and are detected by the water level sensor 60 when a predetermined planned water level and a low water level are generated according to the rain water runoff and discharge, (Not shown) configured to be driven by a motor or a hydraulic or pneumatic pressure by applying a sensed value to the side of the gate 60 to lower the gate 60 to open and close the inlet 70 A detailed description will be omitted.

The wet paper web part 120 is formed between the sedimentation paper 110 and the underground flow wet paper web module part 140. The rain water flowing from the sediment paper web 110 flows to the underground flow wet paper web module part 140 side Consists of a shallow wetland section (121) and a deep pond (123) to remove primary and secondary organic pollutants.

The water depths of the shallow wet part 121 and the deep water pond 123 can sufficiently remove organic contaminants while flowing the rainwater flowing from the settling paper 110 to the underground flow wet paper module part 140 side It is preferable to form it at a water depth of 45 cm to 90 cm.

2, one end of the guiding unit 130 is installed in a deep pond 123 of the wet paper part 120, and the purified water is supplied to the downstream side, that is, the underground flow wetland module unit 140)

The guide means 130 includes a buoy member 131 provided to float on the water surface of the deep pond 123 of the wet paper part 120 and a guide member 130 having one end fixed to the bottom surface of the buoy member 131 An inflow pipe 132 having an inflow port 132a for inflowing purified water formed in a corrugated pipe type so as to be movable in accordance with a water level and a water supply pipe 132 extending from the other end of the inflow pipe 132 and having a low water level L to the bottom of the underground flow wetland module part 140. The underground flow wetland module part 140 is connected to the underground flow wetland module part.

The inflow port 132a is formed at one end of the inflow pipe 132 and is formed on the bottom surface of the inflow pipe 132 so that only floating water can flow into the inflow pipe 132 without inflow of floating matters.

1 and 2, the underground flow wetland module unit 140 removes the oil and phosphorus contained in the purified water introduced through the induction unit 130 and discharges it to the outlet 150 side Respectively.

That is, the underground flow wetland module unit 140 includes a lower filter medium layer 141a and an upper filter medium layer 141b, which are disposed so as to be able to decompose the oil contained in the inflow water, And the upper surface of the upper filter material layer 141b of the filter material layer 141 to prevent the purified water flowing through the inductive means 130 from penetrating into the upper filter material layer 141b side. And one end is protruded at the same height as the predetermined planned water level H and the other end is protruded at the other end from the impervious layer 142 and the filter material layer 141 And the purified water discharged through the discharge pipe 133 of the induction means 130 flows into the lower portion of the lower portion of the lower portion of the filter medium 141 A plurality of hollow tubes The guiding member 143 and the guiding members 143 are positioned at the center of the guide member 143 so that one end of the guiding member 143 penetrates the impervious layer 142, the upper and lower filter media layers 141b and 141a of the media material layer 141, And the other end is protruded so as to have the same height as the predetermined planned water level H, and a functional ceramic carrier for removing phosphorus contained in the purified water is filled in the inside thereof, And a pouring refuser 144 which is configured to allow water to flow inward through the outer circumferential surface to the outflow portion 150 side.

The inside of the guide member 143 is further provided with an oxygen supplying means 145 for rotating by the purified water flowing inward through the outer circumferential surface to supply the outside air to the filter material layer 141 side.

The upper filter material layer 141b of the filter material layer 141 may be an oil-impregnated ceramic material having a diameter of 5 mm to 10 mm so as to prevent the impermeable layer 142 composed of clay or pearl from permeating into the lower filter material layer 141a. And the lower filter medium layer 141a is composed of an oil-dispersed ceramic carrier having a diameter of 15 mm to 30 mm so that purified water can flow smoothly. The oil-dispersed ceramic carrier of the upper and lower filter media is known A detailed description will be omitted.

The impervious layer 141 is formed of clay or pearl so that the purified water flowing into the underground flow wetland module part 140 can flow into the refuse layer 144 through the media layer 141, , The impermeable layer 141 is formed to have a thickness of 100 mm to 200 mm so as not to be easily washed away by the flow of water.

In addition, the guide member 143 is formed of a hollow tube having a circular or polygonal cross-section, and a hole 143a is formed on the outer circumferential surface to allow purified water to flow inward to flow out to the filter material layer 141 side The outer circumferential surface of the outer circumferential surface, that is, the outer circumferential surface in contact with the impervious layer 142, is formed of a non-porous tube 143b having no hole formed therein to prevent the impervious layer 142 from flowing into the inner circumferential surface.

At this time, each end of the guide member 143 is provided with a lid 143c to prevent foreign matter from being introduced.

The phosphorus rejection 144 is formed as a hollow tube so that the phosphorus contained in the water can be drained while the purified water flowing through the filter medium layer 141 flows out to the outlet 150 side The upper outer circumferential surface including the outer circumferential surface contacting the impervious layer 142 is formed of an outer non-porous pipe 1441a to prevent the purified water and the impervious layer 142 from being introduced and discharged. And an inlet hole 1441b of the outer filling tube 1441 is formed on the outer circumferential surface of the tube 1441. The inner tube 1441 is provided with an inlet hole 1441b formed in the inner tube 1441b, An inner cylinder inner cylinder 1442 having an inner cylinder non-oil pipe 1442a and an oil inlet 1442b formed at the same position as the inner cylinder 1441 for allowing the purified water introduced through the inner cylinder 1442 to flow inward, The pulling grate outer cylinder 1441 and the The inner surface and the outer surface are curved curved surfaces so that they can be stacked in two to four stages in the radial direction between the removal inner tubes 1442. The functional ceramic carrier 1443a is filled therein, And the other end is communicated with the inside of the inner filling tube 1442 through the one end of the lower end of the filling outer cylinder 1441 and the other end is connected to the outlet of the outflow portion 1443. The functional ceramic- And a drain pipe 1444 connected to the drain pipe 150 for communicating with the drain pipe 150.

The cover 1445 is provided at the other end of the above-mentioned pulling grate outer casing 1441 to prevent foreign matter from flowing inward.

The functional ceramic carrier 1443a filled in the functional ceramic carrier tube 1443 is prepared by mixing 60 to 70 parts by weight of a mixture of a mixture of clay and loess in which the foreign material is removed in a 6: 4 ratio, 5 to 18% And 5 to 18 parts by weight of molasses, 15 to 20 parts by weight of zeolite and 2 to 3 parts by weight of a binder are calcined in a porous form through a sintering machine. Such a functional ceramic carrier is limited to the above- But it is also possible to use a known one.

3, the oxygen supply means 145 includes a rotation bar 145a having one end rotatably mounted on a bearing (not shown) fixed to the center of the bottom surface of each cover 143c of the guide member 143, An outer air inlet fan 145b provided so as not to be in contact with the purified water introduced by being installed on the upper side of the rotary bar 145a and a fan 145b positioned below the outer air inlet fan 145b, And is provided at a lower end portion of the bar 145a and flows inwardly to rotate in accordance with the flow of the falling water so that the outside air can be supplied to the filter material layer 141 side by the rotation of the outside- And a dedicated fan 145c.

As shown in FIG. 2, the outflow unit 150 is connected to the other end of the in-flush drainage pipe 1444 included in the flushing water supply unit 144 of the underground flow wetland module unit 140, and the other end is connected to the low- An outlet 152 is formed in the same position as the outlet 155. The outlet 152 is opened for 24 to 48 hours in the constructed wetland until the inflowed rainwater is discharged from the predetermined planned water level H to the low water level L So that a stay can be made.

In other words, the outflow unit 150 includes a collecting unit 151 connected to the lower side of the underground flow water pipe module included in the underground flow wetland module unit to collect the discharged water, And an outlet 152 formed at an upper portion of the upper portion 151 to allow the stay of the inflowed rainwater to flow from the predetermined planned water level to the low water level for 24 to 48 hours in the constructed wetland .

In the upper part of the outlet 152 of the collector 151, there is further formed a month-use outlet 153 so as to discharge quickly corresponding to the inflow of the storm water at a predetermined planned water level H or higher do.

At this time, the diameter of the outlet is set according to the inflow volume of the rain water runoff.

For example, if the water treatment capacity of 0.3 m height from the low water level (L) to the planned water level (H), that is, 10,000 m 3, is to be treated for more than 24 hours, the outflow port of the outflow part is provided with a diameter of 300 mm or less .

When the rainwater effluent is to be treated by using the highly efficient combined wetland system for rainwater effluent pollution reduction according to the present invention, the rainwater runoff flowing through the open inlet (70) And then flows into the sedimentation paper 110 of FIG.

When the inflowing rainwater flows from the low water level (L) to the planned water level (H) at a height of 0.3 m to 10,000 m 3, the water level sensor (50) senses the water level and applies the sensed value to the control side, Accordingly, the control unit applies power to the driving unit.

Power is applied to the drive unit side, whereby the water gate 60 is operated and thereby the opened inlet port 70 is closed.

The rainwater runoff flowing into the sedimentation pond 110 of the wetland system passes through the shallow wetland portion 121 and the deep pond 123 of the wetland portion 120 while the sludge is settled through the sedimentation pond 110.

Organic pollutants are removed from the shallow wet part 121 and the deep pond 123 of the wetland part 120 through the rainwater runoff and the organic pollutants are removed from the bottom part of the inflow pipe 132 of the induction unit 130 Flows into the underground flow wetland module part 140 through the inlet port 132a.

The purified water flowing into the underground flow wetland module unit 140 flows inward through a plurality of holes 143a formed in the upper portion of the non-porous pipe 143b of the plurality of guide members 143. [

At this time, the rotation fan 145c of the oxygen supply means 145 is rotated by the purified water flowing inward through the plurality of holes 143a.

The rotation of the rotation fan 145c causes the outer air inlet fan 145b to rotate together with the water so that the air is purified through the plurality of holes 143a together with the purified water in the lower filter medium layer 141a of the filter medium layer 141, And the upper filter material layer 141b.

The purified water introduced into the lower and upper filter layers 141a and 141b of the filter media layer 141 and the upper filter media layer 141b together with the external air is divided into an upper filter material layer 141b having a diameter of 7 mm and a diameter of 20 mm The oil is decomposed as it passes through the lower filter medium layer 141a made of the oil-dispersed ceramic carrier of the refractory ceramic carrier and flows inward through the inflow hole 1441b formed in the outer peripheral surface of the refractory outer tube 1441 of the refuse refuse 144.

The oil-decomposed water flowing into the filling-in outer cylinder 1441 of the binder removal unit 144 is introduced into the functional ceramic carrier cylinder 1443 provided in four stages and discharged therefrom by the functional ceramic carrier 1443a filled therein, And flows inward through the inflow hole 1442b of the inner casing 1442 for the inhaler.

The water removed from the phosphorus flowing into the inside of the pouring inner tank 1442 flows out to the outlet 150 through the pouring drain pipe 1444.

The water removed by the outflow to the outflow portion 150 is collected in the water collecting unit 151 and drained through the outflow port 152 having a diameter of 300 mm so that the rainwater runoff stays in the constructed wetland system for 24 hours.

Therefore, since the residence time is sufficiently long through the constructed wetland system, contaminants contained in the rainfall runoff can be treated more reliably.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100; Highly efficient composite wetland system for rainwater runoff pollutant reduction
110; Sedimentation site
120; Wetland section
130; Induction means
140; Underground flow wetland module part
150; Outlet
160; Wet zone

Claims (10)

In order to reduce rainwater runoff pollutants,
The rainwater runoff is communicated with the river R through an inlet 70 formed adjacent to the river R and provided with a water gate 60 opened and closed by the water level sensor 50, A sedimentation paper 110 formed on the upstream side to precipitate impurities contained in the rainfall run-off water by flowing into the predetermined planned water level H;
A wetting part 120 formed to remove organic contaminants and to purify the water while flowing rainwater flowing from the settling paper 110;
In order to guide the water purified by the wet paper part 120 to the downstream side, one end is located in the rear end water of the wet paper part 120 and the other end is embedded in the boundary part S so that the floating matter floating on the surface is not introduced Induction means 130;
The purified ceramic carrier 1443a is filled with purified water discharged from the upper portion connected to the other end of the induction means 130 through the induction means and discharged from the lower portion to remove phosphorus contained in the purified water. An underground flow wetland module unit (140) provided for the underground flow;
One end of which is connected to the discharge side of the underground flow wetland module part 140 and the other end forms an outlet 152 at the same position as the low water level L, And an outlet 150 formed to have a diameter that allows the stay to be maintained in the constructed wetland for a long time until it is discharged from the water level H to the low water level L
And a high-efficiency composite wetland system for reducing pollutants in rainwater runoff.
The method according to claim 1,
The wetland part 120 of the highly efficient combined wetland system for reducing the rainwater runoff pollutant adsorbs the pathogenic microorganisms by the inflow of the rainwater runoff at the predetermined planned water level H and the pathogenic microorganisms adsorbed at the low water level L And a wet zone (160) is further formed to be decomposed by using solar energy.
The method according to claim 1,
The guide means 130 includes a buoy member 131 provided to float on the water surface of the deep pond 123 of the wetland portion 120 and a buoy member 131 having one end fixed to the bottom surface of the buoy member 131, And an inflow pipe 132 which is formed as a corrugated pipe type so as to be movable along the inflow pipe 132 and has an inflow port 132a for inflow of purified water, And a discharge pipe (133) connected to the underground flow wetland module unit (140) by being buried at the same height as that of the underground flow wetland module unit (140).
The method according to claim 1 or 3,
The underground flow wetland module unit 140 includes a lower material layer 141a and an upper material layer 141b which are formed of a lower material layer 141a and a lower material layer 141b which are disposed so as to be able to decompose the oil contained in the water, And an impermeable layer provided on the upper surface of the upper filter material layer 141b of the filter material layer 141 so as to prevent the purified water flowing through the induction means 130 from permeating toward the upper filter material layer 141b. And one end thereof is protruded at the same height as the predetermined planned water level H and the other end is protruded at the other end from the impervious layer 142 and the free material layer 141 The purified water discharged through the discharge pipe 133 of the induction means 130 can be flowed through the upper filter material layer 141b and the lower filter material layer 141a to flow out to the filter material layer 141 side A plurality of hollow tubes Member 143 and the guide member 143 so that one end thereof penetrates the impervious layer 142 and the upper and lower filter media layers 141b and 141a of the media material layer 141, And the other end is protruded to have the same height as the predetermined planned water level H, and a functional ceramic carrier for removing phosphorus contained in the purified water is filled therein, And an inflow rejection (144) provided to flow inward through the outer circumferential surface to the side of the outflow section (150).
5. The method of claim 4,
Wherein the guide member (143) is further provided with an oxygen supply means (145) for rotating by the purified water flowing inward through the outer circumferential surface to supply the outside air to the filter material layer (141) side. Highly efficient composite wetland system for pollutant reduction.
5. The method of claim 4,
The upper filter material layer 141b of the filter material layer 141 is composed of an oil-fractionated ceramic carrier having a diameter of 5 mm to 10 mm so as to prevent the impermeable layer 142 composed of clay or pearl from permeating into the lower filter material layer 141a, The lower filter media layer 141a is made of a oil-dispersed ceramic carrier having a diameter of 15 mm to 30 mm so that purified water can flow smoothly. The impermeable layer 142 is 100 mm to 200 mm Thick wetland system for reducing rainwater runoff pollutants.
5. The method of claim 4,
The guide member 143 is formed of a hollow tube and has an outer circumferential surface formed with a hole 143a for allowing purified water to flow inward into the filter medium layer 141 side and an outer circumferential surface contacting the impervious layer 142 And a non-porous pipe (143b) having no holes formed therein to prevent the impervious layer (142) from flowing into the interior.
5. The method of claim 4,
The phosphorous rejection unit 144 is formed as a hollow tube so that phosphorus contained in water can be removed and drained while the purified water flowing through the filter medium layer 141 flows out to the outflow unit 150 side, The upper outer circumferential surface including the outer circumferential surface contacting with the impervious layer 142 is formed of a non-porous tube 1441a for outer circumference to prevent the purified water and the impervious layer 142 from being introduced and discharged. On the outer circumferential surface, And a hollow tube for inserting into the above-mentioned filling-engaging outer cylinder 1441. The outer circumferential surface of the inner tube 1441 is connected to the inlet 1441b of the outer engaging cylinder 1441 through the inlet 1441b, An inner cylinder inner cylinder 1442 having an inner cylinder non-oil pipe 1442a and an oil inlet hole 1442b formed at the same position as the inner cylinder 1441 for allowing the purified water to flow inwardly, The outer cylinder 1441 and the inner cylinder 1442 The functional ceramic carrier 1443a is filled in the inside and the functional ceramic carrier 1443a is formed in the outer circumferential surface of the functional ceramic carrier 1443a. And the other end is connected to the outflow portion 150 so as to communicate with the inside of the inner filling cylinder 1442 and the other end is connected to the outflow portion 150, And a drain pipe (1444). The high efficiency composite wetland system for reducing pollutants in rainwater runoff.
6. The method of claim 5,
The oxygen supply means 145 includes a rotation bar 145a having one end rotatably mounted on a bearing fixed to the center of the bottom surface of each cover 143c of the guide member 143, A fan 145b installed at the lower end of the rotary bar 145a so as not to be in contact with the purified water introduced by being installed at the lower portion of the outer air inlet fan 145b, And a rotating fan 145c rotatably corresponding to the flow of the falling water so as to supply outside air to the filter material layer 141 due to the rotation of the outside air inflowing fan 145b. Highly efficient composite wetland system for reducing effluent pollutants.
The method according to claim 1,
The outflow unit 150 includes a water collecting unit 151 connected to the lower side of the underwater drainage pipe included in the underground flow wetland module unit to collect the discharged water, And an outlet (152) formed at the top of the constructed wetland to allow a stay in the constructed wetland for 24 to 48 hours until the inflowed rainwater is discharged at a predetermined planned water level to a low water level Highly efficient composite wetland system for rainwater runoff pollutant reduction.

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