KR101206857B1 - Multipurpose intensive constructed wetland for nonpoint pollutants treatment - Google Patents

Abstract

PURPOSE: A multi-functional intensive artificial wetland for non-point pollutant treatment is provided to conserve costs needed for maintenance by simplifying water paths, pipes, and pumps. CONSTITUTION: A multi-functional intensive artificial wetland for non-point pollutant treatment includes a water reservoir(10), a treatment wetland(30), and a draining water path(65). A granule is arranged in the treatment wetland. The treatment wetland includes a partition(40) and a contact media chamber(50). The partition and the contact media chamber define the internal space of the wetland and vary the moving path of water to be treated. A distributing path(20) with a weir is installed at the inlet of the wetland and uniformly induces the water to be treated. Purified water is drained to rivers through a naturally meandered draining path. A water collecting weir(80) crosses the rivers to collect and treat polluted river water. An undercurrent water path with an opened upper part is formed in the water collecting weir. A screen is installed at the upper part of the undercurrent water path.

Description

MULTIPURPOSE INTENSIVE CONSTRUCTED WETLAND FOR NONPOINT POLLUTANTS TREATMENT}

The present invention relates to an artificial wetland formed in the riverside for the purpose of treatment of non-point source, the reservoir 10 to which the treated water is first introduced, the treated wetland 30 for treating contaminants in the treated water and the discharged water discharged from the purified treated water. The treatment wetland 30, which is composed of 65 and in which a granular body is installed, is provided with a water barrier bulkhead 40 and a contact chamber 50 that traverse the treatment wetland 30, thereby treating the wetland 30. At the same time, the inner space is partitioned and the movement path of the treated water in the treatment wetland 30 is diversified, and a distribution channel 20 having a weir 23 formed on one side is installed at an inlet of the treatment wetland 30. Induces a uniform diffusion of the purified water is to be discharged to the river through the meandered natural discharge channel 65.

In addition, by installing a water intake (80) to cross the stream is configured to be able to intake and treatment of contaminated river water, the inside of the intake (80) to form a storage channel 83 with an open top and the storage channel 83 The screen 84 is installed at the top to allow the inflow through the main body of the intake beam 80 of the river water, and at the same time, the main body of the intake beam 80 can have a role of a filtration and sedimentation facility.

Pollutants that cause water pollution can be categorized into point sources that can identify discharge points and discharge routes, and nonpoint sources of unknown discharge points.In terms of river water quality management, point sources can be classified into livestock and Industrial facilities, and nonpoint source sources include pollutants in the watershed that are introduced through the initial outflow of rainfall.

Since most nonpoint sources are generally caused by rainfall runoff, they are difficult to predict and quantify due to large changes in daily and seasonal emissions.In particular, a large part of the catchment area is a hydrological cover. In urban rivers, a large amount of particulate contaminants such as dust containing various heavy metals are rapidly introduced into rivers during initial rainfall.

As non-point sources directly flow into rivers without passing through point sources such as sewage treatment plants, it is common to construct separate treatment facilities from point sources and to treat them. Device-type facilities such as mold-type facilities and screen-type facilities, and natural-type facilities such as storage facilities, infiltration facilities and artificial wetlands.

Most of the non-point source treatment facilities are equipment-type facilities that perform physical treatment such as filtration and sedimentation.The primary treatment is to separate solid contaminants by connecting or embedded in road side, bridge drainage, or river pit of storm and conduit. As a facility, non-point source treatment facilities currently applied to urban river basins are limited to their primary treatment through equipment-type facilities.

As described above, among the non-point source treatment facilities, the natural type facilities are provided with storage facilities for storing contaminated water for a certain period of time to induce sedimentation and decomposition of contaminants, infiltration facilities for promoting the underground penetration of rainfall runoff, and various particulate treatment materials. Water purification plants can be divided into artificial wetlands, etc., which can be effectively reduced organic pollutants and nutrients that can not be purified by physical treatment.

In particular, artificial wetlands are attracting attention as non-point source treatment facilities and ecological parks because they can secure additional functions such as improving the waterside ecological environment and creating a hydrophilic environment.

Artificial wetland refers to wetland artificially created as in the dictionary meaning. After attaching the ground of the planning point and installing granular bodies such as soil and sand at the opening, It is to keep the wet to saturated state.

The granules filled in the artificial wetland may be applied to general ground materials such as soil and crushed stone, as well as ground materials such as wood, reed or coconut, or porous contact materials such as activated carbon and zeolite. Aquatic plants and riparian plants are planted on and around the surface.

Artificial wetland purifies and discharges contaminated water by inducing filtration, sedimentation, and catalytic oxidation during the inflow, infiltration, storage, and discharge of treated water. In general, a single wetland treats contaminants alone. Rather, it is more common to establish a complex method in which other natural treatment facilities such as storage facilities and infiltration facilities are connected, and a plurality of unit wetlands are connected through waterways. Patent 1127474 is a technology related to such complex artificial wetlands. have.

Conventional artificial artificial wetland, including patent No. 1127474, differs in the specific structure and arrangement of individual treatment facilities, but is basically a screen facility for separating drift and suspended contaminants in treated water, a reservoir for inflow and storage of treated water, and treatment. It is generally composed of a settled paper to charge the solids in the water, a plurality of unit wetlands for performing the purification treatment of contaminants in the treated water.

In the conventional artificial wetland type non-point source treatment facility, the artificial wetland which substantially removes contaminants in the treated water that has undergone the first physical treatment is connected to a plurality of unit wetlands separately formed according to a treatment method.

That is, according to the characteristics of the granules installed in the artificial wetlands or the direction of movement of the treated water passing through the artificial wetlands, the unit wetlands individually formed are connected to constitute the entire facility. Unit wetlands with artificial wetlands and granular granules formed separately, allowing treated water to pass through these individual wetlands sequentially, or unit wetlands with horizontal movement of treated water vertically and unit wetlands By separately forming the method to pass through the treated water is applied.

In the process of filtration or contact oxidation in artificial wetland of treated water, the method of vertically passing the granular pores of the treated water is applied for the purpose of rapid filtration, and the method of horizontally passing the granular pores of the treated water is applied to the granular surface. As a method applied to induce the decomposition of contaminants through sufficient contact with the treated water, the desired purification effect can be achieved by sequentially applying such treated water vertical movement and horizontal movement treatment.

In Patent No. 1127474, the vertical filtration unit wetland and the horizontal filtration unit wetland are separately formed and interconnected. In addition, the post-treatment unit wetland in which various water purification plants are planted, as well as various pretreatment facilities such as storage tanks and settlements, Combined to form the entire wetland treatment facility.

As such, unit wetlands and pretreatment facilities, which perform various functions, have been combined to enable effective treatment of nonpoint source sources such as initial runoff from rainfall.However, complex unit wetlands can be constructed individually and complex to connect these unit wetlands and pretreatment facilities. Since the waterway network has to be established, a huge construction cost is required, and there is a problem of securing a large site.

In particular, considering that urban rivers, where a large part of the catchment area is a hydrological cover, are the main targets for nonpoint source treatment, conventional artificial wetland treatment facilities are not only difficult to secure, but also buy land. Or, there is a limit to the supply due to the enormous project costs including compensation costs.

In addition, in the case of the conventional artificial wetland consisting of a plurality of unit wetlands are connected to each unit wetland is connected to the water channel and the treated water is transported, the water head difference between the unit wetlands is secured when the treated water is moved by natural flow Since the unit wetlands should be arranged in a cascade and pumped the treated water into the upper unit wetlands, a separate pumping facility should be installed at the inlet or outlet of each unit wetland.

In particular, such a unit wetland pumping facility not only acts as a factor to increase the construction cost as well as the maintenance cost when the artificial wetland is initially constructed, and may cause a serious problem that the operation of the whole wetland is stopped when the pumping system fails.

Therefore, in constructing the in-supply terrain treatment facility, it is possible to consider a method of forming a single wetland of a relatively large size without combining a plurality of unit wetlands, but when the artificial wetland is enlarged, the treated water flowing into the artificial wetland is Instead of being uniformly distributed throughout the space in the installed artificial wetlands, the treated water at the deep part of the artificial wetlands becomes stagnant while forming surface flows.

That is, in the case of large scale wetlands, the path from which the treated water flows from one side of the wetlands through the waterways or inlet pipes to the other side of the wetlands does not have a path through the entire space of the wetlands, and a thin surface flow is applied to the surface of the wetlands. As it moves rapidly while forming, it is not enough processing.

In order to solve these problems and to make full use of the space inside the wetland, a separate plumbing facility may be installed inside the wetland or a wide range of watering facilities may be installed on top of the wetland. In addition to the cost, the buried piping acts as an obstacle during maintenance work such as replacement of granules in the wetland, and when watering facilities are installed, it causes serious problems that planting of aquatic plants or water plants in the wetland is difficult. .

The present invention has been made in view of the above-described problems, and the present invention is performed by collecting the vertical filtration, horizontal filtration, contact material treatment, etc. of the treated water that has been conventionally performed through a plurality of unit wetlands through a single treatment wetland 30, It is possible to uniformly spread when the treated water flows into the (30) to secure the initial vertical penetration area, and to diversify the treated water movement path in the treated wetland (30) to maximize the space utilization of the treated wetland (30), The effective water passage area of the treated water is secured and the contact material can be easily replaced.

In addition, the treated water flowing into the reservoir 10 may be expanded to not only the initial rainfall of the rain discharged from the cover such as roads, but also to the contaminated river water, and to allow the natural water withdrawal of the contaminated river water through the intake bank 80. At the same time, the reservoir 80 is formed in the intake channel 80 and the screen 84 is formed on the top of the storage channel 83 so that the intake channel 80 can have a function of a filtration and a settling facility. It is.

That is, the present invention is to the reservoir 10 to which the treated water is introduced, connected to the reservoir 10, and the granular body is installed to the treatment wetland 30 for treating contaminants in the treated water and to the discharge passage 65 through which the treated water is discharged. In the artificial wetland for non-point source treatment, which is configured and formed on the riverside, the distribution channel 20 is installed on one side of the treatment wetland 30 over the entire width of the inner section of the planar treatment wetland 30. The inflow portion of the 20 is connected to the reservoir 10, and a weir 23 is formed at the side end of the treatment wetland 30 side of the distribution channel 20 and enters the distribution channel 20 so as to enter the weir 23. The excess water flows in the state in which the treated water is spread to the treatment wetland 30, and the water barrier plate 40 having the order plate 41 is buried across the treatment wetland 30 to be treated. Treatment of the inner space of the wetland 30 with the vertical penetrating portion 31 of the treated water inflow side based on the water barrier bulkhead 40. The water discharge plate is divided into a horizontal lower portion 32, and the order plate 41 of the water barrier bulkhead 40 is spaced upward from the bottom of the treated wetland 30 so as to vertically penetrate the portion 31 below the water barrier bulkhead 40. The horizontal wetted portion 32 forms a passageway for the treated water, and the horizontal wetted portion 32 has a pair of transverse walls 51 having a plurality of water holes 52a perforated therebetween with the treatment wetland 30 separated from each other. In the spaced space between the transverse walls 51 and the space between the transverse walls 51, a plurality of water holes 52b are provided in the contact material chamber 50 in which the contact box 53 in which the contact material is loaded is stored. Installed in the other side of the distribution channel 20 of the treatment wetland 30, the inner side of the plurality of through-holes (有 孔 duct) is embedded in the treatment wetlands 30 in a standing state and the discharge pipe connected to the discharge channel ( 61 is a multi-purpose intensive artificial wetland for non-point pollution treatment, characterized in that the inlet is joined to the collecting pipe (60).

In addition, the intake spigot 80 crossing the stream near the reservoir 10 is installed, the main body of the intake spigot 80 is configured with the upstream wall 81 on the upstream side and the downstream wall 82 on the downstream side. In addition, between the upstream wall 81 and the overflow wall 82, an upper reservoir channel 83 is formed by terminating the main body of the intake beam 80 so that the stream water that has flown over the upstream wall 81 is stored in the reservoir channel ( 83, and the screen 84 is coupled to the upper end of the storage channel 83 to filter the drift and suspended matter in the river water flowing into the storage channel 83, the storage channel 83 is connected Multipurpose intensive artificial wetland for non-point pollution treatment connected to the reservoir 10 through the waterway 90, and the water inlet 86 is formed at the lower end of the upstream wall 81 of the inlet 80, the overflow wall 82 The lower end portion is formed with an opening and closing bangu 87, the river water flowing through the water inlet 86 when the bangu 87 is opened (8) 3) It is a multipurpose intensive artificial wetland for non-point pollution treatment, characterized in that discharged through the bangu 87 with the sediment deposited on the bottom.

Through the present invention, it is possible to miniaturize the entire treatment facility without degrading treatment capacity and treatment efficiency by concentrating the artificial wetland nonpoint source treatment facility, thereby significantly reducing the required site and construction cost of the nonpoint source treatment facility. You can get it.

In addition, various treatment processes that were performed by combining a plurality of unit wetlands can be performed through a single treatment wetland 30, thereby simplifying waterways, piping and pumping facilities for transfer of treated water between unit wetlands. Maintenance costs can also be reduced.

In particular, in the conventional wetlands, various buried piping facilities or upper watering facilities, which are installed for the diffusion and flow of the treated water, are not required, thereby ensuring convenience of maintenance work such as replacement of granular bodies in the wetlands. Free vegetation of aquatic plants or riparian plants is possible at the upper part of the wetland, which can double the effect of ecological conservation and hydrophilic environment creation.

In addition, it is not limited to traditional nonpoint sources such as initial runoff of rainfall, but rather to collect and treat stream water contaminated locally by nonpoint pollution. Can be used for many purposes.

In particular, in performing the natural withdrawal of the contaminated river water through the intake 80, the reservoir 80 is formed in the intake 80, and the screen 84 is formed on the top of the reservoir 83 to form the intake 80 By allowing itself to combine the functions of filtration and sedimentation facilities, it is possible to double the intensive effect of the entire nonpoint source treatment facility.

1 is a plan view of the present invention
FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG. 1.
3 is a cross-sectional view taken along the line B-B 'of FIG.
4 is a perspective view of the extractor of the present invention
Figure 5 is a partial cutaway perspective view of the present invention
6 is a cross-sectional view taken along the line CC 'of FIG.
7 is a partial cutaway perspective view of an embodiment of the water intake beam of the present invention to which the vane is applied
8 is a representative cross-sectional view of the state of use of the embodiment of FIG.
9 is a plan view of the treatment wetland of the present invention.
10 is a perspective view taken with the distribution water of the present invention
11 is a cross-sectional view taken along the line D-D 'of FIG.
12 is a representative cross-sectional view of the treatment wet land use state of the present invention.
Figure 13 is a perspective view of the cut portion of the car barrier bulkhead of the present invention
Figure 14 is an exploded perspective view of the partial resection of contact retrieval of the present invention
15 is a perspective view of the water collecting tube of the present invention
16 is a cross-sectional view taken along the line E-E 'of FIG.

The detailed configuration and operation of the present invention will be described with reference to the accompanying drawings.

First, Figure 1 is a plan view showing the overall configuration of the artificial wetland for non-point source treatment applied by the present invention, as shown in the present invention is basically the reservoir 10, the reservoir 10 and the treated water initially introduced It consists of a treatment wetland 30 connected to and installed granules to treat contaminants in the treated water, and a discharge water passage 65 through which the purified treated water is discharged, and a riverside site such as a blunt 72 between the river dike 71 and the reservoir. Is formulated in.

In addition, as shown in Figure 1, due to the rapid inflow of the non-point source, the intake beam 80 that crosses the stream can be installed as a treatment water intake means for directly intake and treat the river water with a contaminated load increased. The river water taken in through the intake basin 80 is also introduced into the reservoir 10 and stored thereafter, and then goes through a subsequent treatment facility such as a treated wetland 30 or a discharge water passage 65.

That is, the present invention directly treats non-point sources such as initial rainwater runoff generated from hydrologic cover such as roads, or contaminated river water when large amounts of non-point sources enter the stream upstream of the treatment facility of the present invention. As a multi-purpose non-point source treatment facility, assuming that the non-point source as the initial rainwater generated from the upper road of the embankment (71), as shown in Figure 2, the open form connected to the side opening 74 of the upper road of the embankment (71) An outflow path 73 is formed over the slope of the banks 71 and the surface of the blunt 72 to be directly connected to the stream, or the outflow path in the form of a pipe embedded in the bank of the banks 71 and the blunt 72 as shown in FIG. 3. The contaminated water to be treated is introduced in such a manner that the furnace 73 is connected to the reservoir 10.

The present invention is formed in principle that the flow of the treated water from the inflow process of the contaminated water to be treated, as well as the reservoir 10, the treated wetland 30 to the discharge channel 65, is carried out by natural flow. In the operation of the power is minimized, the riverside bulge 72 is the composition of the present invention is higher than the water reservoir in which the river surface is usually formed because the altitude is higher than when the river intake water intake (80) 80) By artificially raising the water level in the upstream section, it is configured to allow natural water withdrawal.

The intake of river water through the intake beam 80 is mainly applied to the intake of agricultural water, but general river crossing underwater beams, except large-scale water intake or special purpose aquatic rivers, such as cloud transport, cause obstacles in flood communication of rivers. The scale is limited to the range not to be limited, and the Mong-ri area of the agricultural water intake 80 is set in the imperial land where the proximity of river water is impossible, so that the level rise due to the intake 80 is for pumping. Pumps in the intake pit which is set at about a few meters required for the plumbing facility and the actual intake are installed on the upper side of the bank 71 are generally in charge.

However, the non-point source treatment facility of the present invention is not only adjacent to the reservoir, which is formed in the river blister 72, and since the difference between the level of the normal reservoir and the elevation of the treatment facility is not large, the reservoir 10 to which the polluted water to be treated is first introduced is near. Sufficient water head can be secured even by raising the water level due to the water intake beam 80 crossing the river.

4 and 5 are each a perspective view and a partially cut perspective view showing an extracting structure of the intake beam 80 of the present invention, respectively, as can be seen through the same view, the intake beam 80 of the present invention, the beam body is spaced apart from each other An upstream wall 81 on the upstream side and a downstream wall wall 82 on the downstream side are formed, and a storage channel 83 having an upper portion opened between the upstream wall 81 and the wall wall 82 is an intake passage 80. ) Is formed by terminating the main body.

In addition, an outlet step portion 85 is formed at an outlet end of the storage channel 83 formed by terminating the main body of the intake beam 80, and an outlet step portion 85, which is a kind of channel end wall flow structure, is formed. Through the reservoir 80 in the main body through the intake channel 80 and the connection channel 90 outside the intake channel 80, the connection channel 90 is connected to the reservoir 10 as shown in FIG. The treated polluted river water collected through the intake basin 80 is supplied to the reservoir 10.

The water intake stream upstream side of the water intake (80) is increased by the water intake (80), the river water level is increased to flow over the upstream wall 81 as shown in Figure 6 flows into the reservoir (83), The screen 84 is coupled to the upper end of the waterway 83 to filter the overflow, inflow of the stream and the floating contaminants into the storage waterway 83.

The first treatment water filtered by the screen 84 on the top of the storage channel 83 flows into the storage channel 83 and is temporarily stored, and then overflows the outlet step portion 85 at one side of the inlet 80. It is introduced into the connection channel 90, as shown in Figure 5, the water gate (95a) is installed on the upper side of the outlet step portion 85 to control the inflow of the treated water into the connection channel (90).

The storage channel 83 not only filters the contaminants in the treated water by the screen 84 installed at the top, but also temporarily stores the treated water in the storage channel 83 through the outlet step 85 to precipitate the solids in the treated water. In this way, by utilizing the space in the main body of the water inlet 80 to impart the function of the screen 84 facility and the settling basin 80 itself, the effective physical of the treated water without configuring the screen 84 facility and the settlement Processing is possible.

The elliptic enlargement part of FIG. 6 illustrates the overflow of the upstream wall 81 and the storage channel 83 of the upstream wall 81 when the inflow of the river water is ingested through the intake beam 80. 81) and the upstream and underflow state of the intake beam 80 produced so that the upper elevation of the overflow wall 82, and the right ellipse enlarged portion of the upper elevation of the overflow wall 82 is the upper wall 81 It shows the overflow and storage state of the intake beam 80 formed higher.

When the upper end of the upstream wall 81 and the overflow wall 82 coincide with each other, as in the left ellipse enlargement part of FIG. 6, when the upstream flow rate of the water inlet 80 is relatively small, all the upstream inflow flows into the storage channel 83. Inflow, if the upstream flow exceeds the water flow passage 83, the excess can be operated in such a way that the overflow wall 82 flows freely downstream, and in the enlarged portion in the right ellipse of FIG. As described above, when the upper portion of the overflow wall 82 is formed, it may be operated in a manner that minimizes unauthorized discharge even if a treatment water delay occurs in the storage channel 83.

On the other hand, as described above, the storage channel 83 formed in the intake beam 80 also serves as a settlement basin to induce solids precipitation in the river water with the intake of the river water, the solids in the river water for long-term use Due to the large amount of sedimentation on the bottom of the furnace 83, the through area of the storage channel 83 is encroached, and periodic removal of the precipitated solids is necessary.

The removal of solids deposited on the bottom of the storage channel 83 may be performed by dredging the interior of the storage channel 83 while removing the screen 84 on the top of the storage channel 83. In FIG. 7 and FIG. 8, a water outlet 86 is formed at the lower end of the upstream wall 81 of the intake beam 80, and an opening and closing mouth opening 87 is provided at the lower end of the overflow wall 82. Forming, discharged through the water inlet (80) downstream through the bangu (87) with the sediment deposited on the bottom of the water reservoir (83) flows through the water outlet (86) when opening the bangu (87) By doing so, it is possible to secure the convenience of maintenance of the intake 80.

As in the embodiment shown in Figure 7, the opening and closing means of the bangu 87 may be composed of a removable plate, such as coupled to the distal end of the bangu 87, as shown in Figure 8, upstream side of the catch 80 When the bangu 87 is opened in a state in which a water level is formed at a predetermined level or more, the water inlet 80 and the upstream river water rapidly flow into the water outlet 86 at the bottom of the upstream wall 81, and then the storage channel 83 The sediment deposited on the bottom is quickly discharged through the bangu 87.

As such, the contaminated stream water taken through the intake passage 80 is introduced into the reservoir 10 through the connection channel 90 connected to the storage passage 83 in the intake passage 80, which is shown through FIGS. 1 and 3. As can be seen, the reservoir 10 of the present invention is a facility in which the primary inflow of contaminated water to be treated is a non-point source of polluted water generated from a nearby levee 71 road as well as the contaminated water to be treated supplied from the intake report 80. It comes in directly.

The contaminated water to be treated introduced into the reservoir 10 is temporarily stored in the reservoir 10 and settled, and then granulated bodies are installed through the distribution channel 20 and various aquatic plants are planted as shown in FIG. 9. It is supplied to the marsh 30.

In the present invention, the distribution channel 20 for supplying the treatment water to the treatment wet paper 30 is provided on one side of the treatment wet paper 30 over the entire innermost width of the planar treatment wet paper 30, The treated water discharged from the reservoir 10 is supplied uniformly over the entire width of the treated wetland 30. The structure of the distribution channel 20 of the present invention is shown in FIG.

As shown in FIG. 10, the distribution channel 20 of the present invention has a channel wall 22 formed at one end of the channel bottom plate 21 and a weir 23 formed at the other end thereof, that is, both sidewalls of the channel. Weir 23 is formed in one structure, unlike the general inlet and outlet are formed at the linear ends of the channel respectively, the inlet is formed at the linear end of the channel, but the outflow is generated laterally over the entire extension of the channel It has a structure.

Thus, the treated water introduced into the distribution channel 20 from the reservoir 10 may be uniformly supplied over the entire inner portion of one side of the treated wetland 30 as shown in FIG. 9, thereby treating the treated wetland 30 of the treated water 30. Promotes diffusion in the) and makes full use of the space of the treated wetland 30.

In the embodiment shown in Figures 9 and 10, both the inlet side and the distribution channel 20 of the treated wetland 30 is formed in a straight line, but the inlet side of the treated wetland 30 is formed in an irregular shape The treatment wetlands 30 may be formed in a shape similar to the wetlands in the natural state as much as possible by giving a curved line to the planar linear of the drainage passage 20 and also conforming to the inner shape of the treatment wetlands 30.

The treated water introduced into the treated wetland 30 through the distribution channel 20 is purified by processing such as filtration and catalytic oxidation while passing through the pores between the installed and filled granules in the treated wetland 30. It is discharged to the discharge passage 65 adjacent to 30, which is the cross-sectional structure of the treatment wetland 30 of the present invention is shown in Figures 11 and 12.

As can be seen through Figures 9, 11 and 12, the treatment wetland 30 of the present invention is a vertical penetration of the treated water inlet side relative to the water barrier bulkhead (40) buried across the treatment wetland (30). It is divided and divided into the part 31 and the horizontal flow part 32 of the process water outflow side, and the horizontal flow part 32 has a basic structure in which the contact chamber 50 and the collection pipe 60 are embedded.

A water barrier bulkhead 40 embedded in the granular body filled in the treatment wetland 30 in a direction crossing the treatment wetland 30, that is, orthogonal to the flow path of the treated water generated in the treatment wetland 30 is illustrated in FIG. 9. The treatment wetland 30 is installed over the entire width as in 2 minutes to the planar wetlands 30, as shown in Figs. 11 and 12, the water barrier bulkhead 40 in the cross section of the treatment wetlands 30 is treated wetland. Rather than blocking the entire section from the top to the bottom of 30, a portion of the lower part is opened to induce a lower movement of the treated water.

As shown in FIG. 13, the lower opening structure of the water barrier bulkhead 40 includes a base 43 in which the water barrier bulkhead 40 is seated and fixed to the bottom of the treatment wet land 30, and a plurality of posts 42 provided above the base 43. And the order plate 41 fixed to the upper portion of the support 42, in which case a flow of treated water is formed between the support 42 and the support 42 above the foundation 43.

As such, the space in the treatment wetland 30 divided by the barrier rib 40 shows different aspects in the movement of the treated water, as shown in FIGS. 11 and 12, based on the barrier rib 40. In the vertical penetrating portion 31 formed on the side, the vertical direction penetration and movement of the treated water occurs, and in the horizontal flow portion 32 formed on the outflow side with respect to the barrier rib 40, the horizontal movement of the treated water occurs. do.

Vertical penetration of the treated water in the vertical penetrating portion 31 of the treated wetland 30 is spread over the full width of the treated wetland 30 by the distribution channel 20, as in the elliptic enlargement of FIGS. 11 and 12. The surface of the water penetrating the vertical penetrating portion 31 in the state in which the infiltration is delayed by the ecological block 35 installed on the upper surface of the vertical penetrating portion 31 without rapidly penetrating into the installed granular voids. By forming a water surface.

Here, the ecological block 35 is produced by compressing and molding natural materials such as crushed wood, or controlling the particle size distribution of aggregates, and collectively referred to as concrete porous blocks made by mixing porous minerals or foaming agents such as zeolites. It is excellent in water absorption and has a feature that allows vegetation.

The ecological block 35 is generally used to construct the slopes of the banks 71 or the vegetation shelter, but in the present invention, by stacking on the upper surface of the treated wetland 30, in particular, the upper surface of the vertical penetrating portion 31, rapid penetration of the treated water. Suppresses and induces the formation of the upper surface of the vertical penetration (31).

As described above, the ecological block 35 exhibits excellent absorbency, but when the absorption of treated water continues and reaches a saturation state, the absorption stops further and shows a slight order effect. As in the elliptic enlargement, the water surface is formed above the vertical penetrating portion 31, thereby achieving uniform slow vertical penetration of the treated water over the entire upper surface of the vertical penetrating portion 31.

At this time, the upper end of the water barrier bulkhead 40 is preferably installed to protrude to the upper side of the vertical penetrating portion 31 so as to induce smooth sleep formation on the upper surface of the vertical penetrating portion 31. As in the vertical penetrating portion 31 may be provided with a permeation barrier plate 37 on the upper surface.

As in the elliptic enlargement portion of FIG. 12, the penetration retardation plate 37, which is stacked on the vertical penetrating portion 31 and suppresses rapid penetration of the treated water supplied from the distribution channel 20, is an enlarged perspective view of the excerpt in the drawing. As in, a plurality of fine holes are made of a thin plate perforated, the water flowing through the weir 23 of the distribution channel 20 through the permeate retardation plate 37, the smooth permeation retardation plate 37 After spreading to form a water surface is penetrated downward through a plurality of through holes formed in the penetrating plate 37.

On the other hand, as shown in Figure 11 and 12, the ecological block 35 may be installed not only in the vertical penetrating portion 31, but also horizontal penetrating portion 31 of the treatment wetlands 30, thereby enabling a more easy vegetation, treatment wetlands a plant that is planted in 30 large goraeng showing the water purification properties (Scirpus tabernaemontani), yellow iris (Iris pseudoacorus ), reed ( Phargmitesaus trails) and Typha (Typha angustifolia ).

These water purification aquatic plants or water plants can be planted not only in the treated wetland 30, but also throughout the artificial wetlands formed through the present invention, such as the reservoir 10 and the discharge channel 65, thereby not only water purification effect. The effect of improving the landscape and creating a hydrophilic environment can also be obtained.

As shown in FIG. 13, the order plate 41 of the barrier rib 40 is spaced upward from the bottom of the treatment wetland 30 to form a passage for the treated water between the vertical penetrating portion 31 and the horizontal lower portion 32. The downflow of the treated water in the vertical penetrating portion 31 is converted into the horizontal flow while passing through the bottom of the order plate 41. In the vertical penetrating portion 31, the flow of the treated water by gravity is not the horizontal flow due to the flow rate. Smooth penetration is possible even when the drop is generated and the fine granules are filled, so that the rapid filtration treatment of the fine solids is possible, and the horizontal lower portion 32 filled with the granulated granules has a low horizontal speed. Since the flow is maintained, the organic matter is removed through catalytic oxidation while having a sufficient residence time.

On the other hand, as shown in Figs. 11 and 12, the contact portion 50, which crosses the treated wetland 30, such as the water barrier bulkhead 40, is installed in the horizontal flow portion 32, the contact chamber 50 is shown in Figure 14 As in, a plurality of water holes (52a) is installed across the treatment wetland 30 in a state in which a pair of transverse walls (51) spaced apart from each other and a plurality of water holes in the spaced space between the cross walls (51) A contact box 53 in which a contact material is loaded is housed as a housing in which 52b is perforated.

That is, the contact chamber 50 of the present invention is a space in which particulate contact materials for adsorbing or removing contaminants in the treated water, such as activated carbon or ion exchange resins, are stored, thereby reducing nutrients or toxic substances not previously treated. As shown in FIG. 14, a contact box 53 in which contact materials are loaded between the pair of transverse walls 51 spaced apart from each other is configured to be connected to each other. It is possible.

The treated water finally processed while passing through the contact resilient chamber 50 is a perforated tube formed with a plurality of through holes as shown in FIGS. It is collected and discharged by a collecting pipe 60 to which the inlet of the discharge pipe 61 connected to the discharge water passage 65 is joined. The buried position of the collecting pipe 60 is the inner side of the distribution channel 20 of the treatment wetland 30. It is preferable to set to so as to utilize the entire space in the treatment wetland 30 as much as possible.

The treated water discharged to the discharge channel 65 through the discharge pipe 61 connected to the collection pipe 60 is discharged to the stream via the discharge channel 65 as shown in FIG. 1, and the water purification plant is discharged to the discharge channel 65. Planting, or as shown in FIG. 16, the particulate filter is loaded and a frame 66 provided with vegetation materials 67 such as jute bags or coir rolls is installed thereon. The treated water may be configured to be purged even while flowing along the discharge water passage 65.

In addition, the purification treatment discharge channel 65 may be configured in the form of a meandering stream as shown in FIGS. 1 and 9 to extend the residence time of the treatment water discharge channel 65 to secure a purification effect. .

On the other hand, as shown in Figure 1, connecting the time point of the discharge channel 65 with the reservoir 10, and the water gate (95c) is installed in the connecting portion to the treated water of the reservoir 10 when the water gate (95c) opening the treated wetland 30 It may be directly discharged into the stream after flowing directly into the discharge water passage (65) without passing through), as described above, by allowing the treated water to bypass the treated wetland (30), various maintenance including granular replacement in the wetland (30) The maintenance work can be done without first blocking the inflow of contaminated water.

That is, as shown in Figure 1, the artificial wet type non-point pollution treatment facility of the present invention is connected to the main treatment facilities of the intake basin 80, the reservoir 10, the treatment wetland 30 and the discharge water passage 65, 80 is a water gate (95a) between the reservoir 10, the water gate (95b) between the reservoir 10 and the distribution channel 20 and the water gate (95c) between the reservoir 10 and the discharge channel 65 is installed. By selectively opening and closing these hydrographs 95, it is possible to flexibly operate the entire facility.

First, assuming the operating state of treating the non-point pollutant generated from the bank of the embankment 71 as well as the contaminated river water, the entire flood gate 95 is opened except the flood gate 95c between the reservoir 10 and the discharge channel 65. When the river flow is sufficient and the treatment of the contaminated river water is unnecessary, the water gate 95a between the intake beam 80 and the reservoir 10 is operated in a closed state, and the maintenance work of the treatment wetland 30 is performed as described above. In the city, instead of closing the water gate 95b between the reservoir 10 and the distribution channel 20, the water gate 95c between the reservoir 10 and the discharge channel 65 may be operated in an open manner.

As described above, the present invention in which the artificial wetland non-point source treatment facility is concentrated enables the miniaturization of the entire treatment facility without degrading treatment capacity and treatment efficiency, thereby reducing the required site and construction cost of the non-point source treatment facility. In addition, since various treatment processes that have been performed by combining a plurality of unit wetlands can be performed through a single treatment wetland 30, the initial facility cost can be simplified by simplifying the channel, piping and pumping facilities for transfer of treated water between unit wetlands. Of course, maintenance costs can also be reduced.

10: reservoir
20: distribution channel
21: Base Plate
22: waterway wall
23: weir
30: treated wetland
31: vertical penetration
32: horizontal lower part
35: ecological block
37: penetration barrier plate
40: bulkhead bulkhead
41: order plate
42: prop
43: Foundation
50: contact room
51: transverse wall
52: water pipe
53: contact box
60: water collecting pipe
61: discharge pipe
65: drainage
66: room
67: vegetation
71: levee
72: blunt
73: runoff
74: side mouth
80: water intake
81: upstream wall
82: overflow wall
83: reservoir
84: screen
85: outflow step part
86: water outlet
87: banquet
90: connection channel
95: sluice

Claims (3)

It consists of a reservoir 10 into which treated water flows in, a treated wetland 30 connected to the reservoir 10 and a granulated body disposed therein to treat contaminants in the treated water, and a discharge water passage 65 through which the treated water is discharged. In artificial wetland for non-point source treatment,
One side of the treatment wetland 30 is provided with a distribution channel 20 over the entire width of the inner part of the planar treatment wet ground 30, and an inlet of the distribution channel 20 is connected to the reservoir 10;
A weir 23 is formed at a side end of the treatment channel 30 in the distribution channel 20, and the treated water flowing into the distribution channel 20 and surpassing the weir 23 is spread to the entire width of the treatment wet ground 30. Enters a state;
In the treatment wetlands 30, the barrier ribs 40 including the order plate 41 are embedded to cross the treatment wetlands 30, so that the inner space of the treatment wetlands 30 is filled with the treatment water inlet 40 on the basis of the barrier ribs 40. The vertical penetration portion 31 and the horizontal flow portion 32 of the treated water outflow side of the separation, the order plate 41 of the water barrier bulkhead 40 is spaced apart from the bottom of the treated wet land 30 to the water barrier bulkhead 40 A) a passage of the treated water between the vertical penetrating portion 31 and the horizontal lower portion 32 in the lower portion;
The horizontal lower portion 32 is installed across the treatment wetland 30 in a state in which a pair of transverse walls 51 in which a plurality of water holes 52a are drilled are separated from each other. A contact chamber 50 in which a contact box 53 with a contact material loaded therein is installed as a housing in which a water passage 52b of the body is drilled;
The other side of the distribution channel 20 of the treatment wetland 30 is a perforated pipe having a plurality of through-holes, which is embedded in the treatment wetlands 30 in an upright state and connected to the discharge channel 65 of the discharge pipe 61. Multipurpose intensive artificial wetland for non-point pollution treatment, characterized in that the inlet is joined to the collecting pipe (60).
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