KR200413946Y1 - Nonpoint Pollutant Treatment System - Google Patents

Abstract

The present invention relates to a non-point pollutant treatment system, the upper surface is open so that the rainfall runoff flows through the outer slope 11, the one side lower portion of the treated water outflow pipe so that the overflow or treated rainfall runoff is transported to public waters A concrete box 10 having a perforation to which 61 is connected; An initial rainfall induction furnace 20 for guiding rainfall runoff flowed into the concrete box 10 into the soil media layer 70; An initial rainfall guided jaw 30 which becomes a boundary where the rainfall runoff flows into the first storage tank 41 when the rainfall runoff flows by a predetermined amount or more; An inner partition wall 40 formed to distinguish the hollow portion in which the first storage tank 41, the second storage tank 42, and the soil media layer 70 are filled in the concrete box 10; Rainfall outflow water flowing through the initial rainfall guide jaw 30 is formed in the first storage tank 41 at a lower portion of the partition wall that separates the first storage tank 41 and the second storage tank 42 from the inner partition wall 40. Perforated drainage pipe for collecting the rainfall runoff water is treated in the hollow portion filled with the overflow water drain port 50 and the soil filter layer 70 formed to be introduced into the second storage tank (42) ( 60) efficiently cleans non-point pollutants spilled during rainfall by using filtration and adsorption through soil and biological and chemical treatment methods by plants and microorganisms simultaneously. Through the pollutant source management method, which installs pollutant treatment system near pollutant sources such as impervious areas, the entire basin is managed equally, It is effective to prevent groundwater contamination.

Description

Non-point pollutant treatment system {NON-POINT SOURCE CONTAMINANT TREATMENT SYSTEM}

1 is a perspective view of a non-point pollutant treatment system according to the present invention.

Figure 2 is an exploded perspective view of the non-point pollutant treatment system before the soil media is filled.

3 is a plan view of a non-point pollutant treatment system filled with a soil media layer.

4A, 4B and 4C are cross-sectional views taken along lines A-A ', B-B', and C-C 'of FIG. 3;

5 is an installation state of the non-point pollutant treatment system according to the present invention.

Explanation of symbols on the main parts of the drawings

10 concrete box 11: external slope

20: early rainfall taxiway 30: early rainfall taxi

40: internal partition 41: first storage tank

42: second storage tank 50: overflow water drain

60: perforated drainage pipe 61: treated water outflow pipe

70: soil filter layer 71: soil cover

72: plant 80: shroud

The present invention relates to a non-point pollutant treatment system. More specifically, the non-point pollutant discharged during rainfall can be efficiently purified by simultaneously filtering and adsorption through soil and biological and chemical treatment methods by plants and microorganisms. In addition, through the pollutant source management method that installs pollutant treatment system near pollutant sources such as impervious areas, instead of the existing treatment method at the end of rainwater pipes, the entire basin is managed equally, and public water and groundwater caused by nonpoint pollutants It relates to a non-point pollutant treatment system that can prevent contamination.

Generally, sources of water pollutants can be classified into point sources and nonpoint sources. Point sources are continuously generated at a certain point such as domestic sewage, factory wastewater, and industrial wastewater. Non-point pollutants are pollutants that are discharged along with surface runoff during rainfall, while urban dust and trash, fertilizers and pesticides applied to farmland, soil erosion, barn spills, and atmospheric sediments It means the back, and spills from a large area.

These non-point pollutants are difficult to artificially control because of the large seasonal variation in emissions, difficult prediction and quantification, and being affected by weather conditions, terrain, and geology.

In addition, the impact of nonpoint source on water quality is increasing due to development projects. In the area around Paldangho, it is located near the metropolitan area and land use is advanced due to various development pressures and rainwater cannot penetrate underground due to asphalt pavement. In this case, non-point source sources account for 44.5% of Paldang source pollutant load in terms of BOD (biological oxygen demand).

In pollutant management and reduction, many pollutants have been reduced due to the development of treatment methods and construction of new sewage and wastewater treatment plants.However, methods and equipment for non-point pollutants are still insufficient. It is a reality that it is difficult to further improve water quality only by treatment-oriented water quality policy.In addition, due to the increase of impermeability rate in the region, urban runoff characteristics change due to urbanization. Since it is a cause of water quality deterioration, active management of stormwater runoff is needed to improve the quality of rivers and lakes caused by nonpoint sources.

In general, the management method of the non-point source is divided into the physical method of installing and managing various treatment facilities and structures, and the method of applying non-physical techniques such as land use regulation. Infiltration type, which requires a lot of maintenance, and storage type such as artificial wetland, reservoir pond, etc., which requires a relatively large area, and vegetation type such as vegetation filtration and vegetation channel, and sewage treatment type such as ultrafast flocculation and sedimentation facilities In Korea, where the non-point source regulatory capacity is relatively high, the cost is high and the required area for installation of treatment facilities is a major limiting factor in the selection of treatment facilities. In this case, the cost is low but the efficiency is low and the complaints are high.

In addition, once non-point pollutants enter the surface or groundwater, it is difficult to manage them.Non-point pollutant treatment increases the processing cost and becomes more difficult as it is farther away from the pollutant. It is preferable to apply, but the conventional non-point pollutant treatment has a problem in cost and efficiency in the manner of collecting and treating contaminants at the end of the drain pipe.

The present invention was devised to solve the above problems, and efficiently cleans the non-point pollutants spilled during rainfall by using filtration and adsorption through soil and biological and chemical treatment methods by plants and microorganisms simultaneously. The pollutant source management system installs pollutant treatment system near pollutant sources such as impervious areas, instead of the existing treatment method at the end of rainwater pipes, and manages the whole basin equally to contaminate public water and groundwater due to nonpoint pollutants. To provide a non-point pollutant treatment system that can prevent.

The other object of the present invention is to install in a narrow space, to reduce the manufacturing and installation cost by a simple powerless and unmanned system, and to be efficient in maintenance and flexible design change according to the drainage area and site situation. To provide a non-point pollutant treatment system.

Another object of the present invention is to provide a natural non-pollutant treatment system due to planting, while also providing a function of controlling the flow rate by temporarily storing a certain amount of rainfall effluent in the concrete box during the treatment of pollutants. have.

In order to achieve the above object, the present invention is the upper surface is open so that the rainfall runoff flows through the external inclined surface, the lower side of one side is connected to the treated water outflow pipe so that the overflow or treated rainfall runoff is transferred to the public waters A concrete box having perforations formed therein; An initial rainfall induction furnace leading the rainfall runoff introduced into the concrete box to the soil media; An initial rainfall inducing jaw which is a boundary at which the rainfall runoff flows into the first storage tank when a rainfall amount of the rainfall exceeding a predetermined amount is introduced; An inner partition wall formed to distinguish the hollow portion in which the first storage tank, the second storage tank, and the soil media layer are filled in the concrete box; In the lower part of the inner partition wall partition that separates the first reservoir tank and the second reservoir tank, the overflow water drainage port and the soil filter layer formed so that the rainfall runoff water flowing through the initial rainfall guided jaw flows into the second reservoir tank from the first reservoir tank It provides a non-point pollutant treatment system, characterized in that consisting of a hole drainage pipe for collecting the rainfall runoff water treated in the hollow portion to be filled to the second reservoir.

The non-point pollutant treatment system is filled with a hollow formed by surrounding the inner partition of the concrete box, so that the soil media layer to be purified as the runoff runoff and the soil cover and the soil media layer to prevent the loss of the soil media layer In order to easily remove the plant and suspended matter, such as planted on the upper part of the concrete box can be opened and closed may be further configured.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above are as follows.

1 is a perspective view of a non-point pollutant treatment system according to the present invention, Figure 2 is a cutaway perspective view of a non-point pollutant treatment system before the soil filter media layer is filled, Figure 3 is a non-point pollutant treatment system filled with a soil filter media layer 4A, B, and C are sectional views taken on line A-A ', line B-B', and line C-C 'of FIG.

As shown in Figure 1 to 4, the concrete box 10 of the non-point pollutant treatment system according to the present invention is the upper surface is opened so that the rainfall runoff flows through the outer slope 11, the rainfall runoff is introduced In order to guide the initial rainfall runoff to the hollow portion filled with the soil media layer 70, the initial rainfall guideway 20 is formed in the form of a slab of a rectangular frame on an inner upper portion of the concrete box 10, and a predetermined amount of initial An initial rainfall guided jaw 30, which is a boundary overflowing rainfall or more rainfall runoff to the first storage tank 41, protrudes on the inner line of the initial rainfall guideway 20.

In addition, the first and second storage tanks in which the hollow portion filled with the soil media layer 70 and rainfall outflow water over initial rainfall or rainfall outflow water over the treatment capacity of the soil media layer 70 are stored in the concrete box 10. (41, 42) is formed by the inner partition 40, the lower portion of the partition 40 separating the first reservoir (41) and the second reservoir (42) the initial rainfall guide jaw (30) The overflowed rainfall runoff is provided with a overflow water drain 50 formed to be introduced into the second storage tank 42 from the first storage tank 41.

Here, the upper end of the concrete box 10 is preferably installed at the same height as the outer inclined surface 11 so that the rainfall runoff flows smoothly into the concrete box 10, the overflow water is preferentially to the first storage tank (41) In order to be introduced, the upper end of the initial rainfall guide jaw 30 is preferably manufactured to be lower than the height of the upper end of the inner partition 40.

Of course, the shape of the hollow portion and the first and second storage tanks 41 and 42 filled with the concrete box 10, the initial rainfall induction path 20, and the soil media layer 70 is illustrated in the drawings according to the installation environment. It is not limited to the shape can be modified in various shapes, the size can also be varied by the design process for estimating rainfall runoff due to the watershed status.

In addition, in the hollow portion formed by filling the soil media layer 70 and surrounded by the inner partition 40 of the concrete box 10, the rainfall runoff water, which has undergone the pollutant treatment, is collected through the hole and the concrete box 10. The water drainage pipe 60 discharged into the second storage tank 42 is purchased, and the treated water outlet pipe 61 is transferred so that the overflowed or purified rainfall runoff flowing into the second storage tank 42 is transferred to the public water. A perforated part connected to the concrete box 10 is formed at one side lower portion, and the number and type of installation of the perforated drainage pipe 60 and the treated water outlet pipe 61 are not limited to those shown in the drawings, but the present invention is installed. Various modifications may be made in consideration of the surrounding environment and the increase in processing efficiency.

On the other hand, the hole drain pipe 60 is preferably selected as a material that can sufficiently withstand the heat and pressure of the soil media layer 70 generated during the manufacturing step of the concrete box 10, the initial rainfall induction furnace 20 ) And the initial rainfall guided jaw 30 and the inner partition 40 may be integrally formed by concrete pouring when the concrete box 10 is manufactured. The initial rainfall guided jaw 30 may be formed using wood or synthetic resin. It may be installed by embedding in the initial rainfall induction furnace (20).

In particular, the hollow medial layer surrounded by the inner partition 40 is filled with a soil media layer 70, the soil media layer 70 is a mixture of topsoil, organic matter, sand, etc. and the pores are formed sufficiently to grow microorganisms The first filter layer, the vegetation support layer, the special media layer, and the second filter layer are preferably installed in order from the top, and the soil cover layer on the surface of the soil filter layer 70 to prevent the loss of soil. Install (71).

Plant 72 is planted in the soil filter layer 70, the plant 72 is planted by using a plant that can perform a purification function while adapting well to the environment of the region, as a standard for selecting such a plant Consideration should be given to the appropriate size, resistance to oils, insects, and toxic substances, and whether or not they are native plants.

In addition, a top mesh opening 80 supported by the outer wall of the concrete box 10 is installed in the upper opening of the concrete box 10, the lid mesh 80 is formed in a net structure for aeration of the plant roots Preferably, a certain storage space is formed between the soil cover (71) and the cover mesh (80), while the rainfall runoff stays there for a certain period of time, the suspended solids attached to the suspended solids and heavy metals such as garbage and contaminants. Solids (SS) is to be settled, the suspended material net 80 is installed so as to be opened and closed so that the suspended matter and the like can be easily removed.

5 is a state diagram of the installation of the non-point pollutant treatment system according to the present invention, as shown therein, the concrete box 10 is buried underground, only the plant 72 and the cover mesh 80 is exposed to the outside, rainfall runoff It should be given a slope in the direction of the concrete box 10 buried underground so that it can enter directly into the concrete box 10 without bypassing another point.

In addition, although the non-point pollutant treatment system of the present invention is installed on a roadside as an example, it is widely used to collect organic matter, temporarily in rainy weather such as collecting facilities, residential areas, or individual workplaces, small-scale complexes, parking lots, airports, terminals, etc. High concentrations of nonpoint pollutants such as heavy metals and oils can be spilled and installed in impervious areas that need to be cleaned, and the scale of the facility should be designed and installed flexibly according to the area and rainfall characteristics of the watershed.

Referring to the operation of the non-point pollutant treatment system of the present invention is as follows.

Since the treatment system of the present invention is installed close to the pollutant source such as an impermeable area and based on the management at the source, the rainfall runoff flows directly into the adjacent concrete box 10 without bypassing the other place, thereby reconstructing the rainfall runoff pollutant. To prevent overload in the treatment facility due to the floating and bypass flow rate, non-point pollutants in the rainfall effluent flowing into the concrete box 10 is processed by the action of the soil media layer 70 and the plant 72, The treated rainfall effluent is discharged into the public water through a plurality of pipes, which are described in order;

First, suspended solids such as garbage and contaminants in rainfall effluent are deposited on the soil cover 71, and nonpoint pollutants in the rainfall effluent are filtered and adsorbed through the soil media layer 70, and volatile organic substances in the rainfall effluent are soil. Not only is it volatilized to the atmosphere while passing through the median layer 70, but some of the rainfall effluent penetrates into the particles of the soil itself, thereby reducing the total amount of rainfall effluent discharged through the soil medial layer 70, and then discharging it to public waters. The amount of pollutant that is produced is reduced.

Next, the plant 72 planted in the soil media layer 70 absorbs toxic substances such as metals from the roots and accumulates in the cells, and the stems and roots of the plants are used as an attachment medium for the microorganisms so that the microorganisms in the rainfall effluent. Maximizing the efficiency of decomposing and removing contaminants, and by passing oxygen through the aeration tissue, it is possible to increase the air gap in the soil media layer 70 to prevent clogging phenomenon.

In addition, plants promote nitrification and denitrification by promoting the decomposition of microorganisms, and through this process, harmful ammonium ions in rainfall effluent are converted into nitrate ions, converted into nitrogen gas, and released into the atmosphere. Water, carbon dioxide, and nitrogen, which are formed in the air, are also released into the atmosphere, and bacteria in microorganisms remove the toxicity of organic molecules and heavy metals and accumulate and remove such substances in cells and cell membranes. Purified.

As described above, the rainfall runoff treated by the action of the soil medium layer 70 and the plant 72 is collected into the hole drainage pipe 60 through the hole of the hole drainage pipe 60 and discharged to the second storage tank 42. After being transferred to the public water through the treated water outlet pipe 61, it is possible to prevent contamination of the public water and the ground water.

On the other hand, the initial rainfall outflow water introduced into the concrete box 10 flows into the soil median layer 70 along the initial rainfall induction path 20, at which time the treatment capacity of the soil media layer 70 of the non-point pollutant treatment system When the rainfall runoff flows back to the water level above the upper stage of the initial rainfall induction jaw 30 due to the inflow of the rainfall runoff, the rainfall runoff flows to the first storage tank 41 to be discharged through the overflow water drainage port 50. 2 is introduced into the storage tank 42 and finally discharged to the public water through the treated water outlet pipe (61).

Here, since the rainfall runoff discharged after overflowing the initial rainfall induction jaw 30 occurs only when the rainfall lasts for a long time, considering that the outflow characteristic of non-point pollutant mainly shows a high pollution concentration in the initial rainfall runoff, Since the amount of non-point pollutants contained in the rainfall effluent discharged through the first and second storage tanks 41 and 42 by overflowing the initial rainfall induction jaw 30 is very small compared to the initial rainfall effluent, such rainfall effluent is Because of the low impact, it can be released to public waters without any separate treatment.

Therefore, to summarize the system of the present invention, by planting the plant 72 in the soil filtration medium 70, the process of mixing pollutant removal through the microorganisms in the plant and soil together with the filtration and adsorption action, the treated rainfall effluent is pore Through the process of being discharged into the drainage pipe (60) with which it is discharged to the public water will be able to achieve the rainfall runoff purification and flow control at the same time.

While the above has shown and described specific preferred embodiments of the present invention, the present invention is not limited to the above-described embodiment, and those skilled in the art to which the present invention pertains have the technical gist of the present invention. Various changes can be made without departing.

As described above, the non-point pollutant treatment system of the present invention efficiently cleans the non-point pollutant spilled during rainfall by using filtration and adsorption through soil and biological and chemical treatment methods by plants and microorganisms at the same time. The pollutant source management system installs pollutant treatment system near pollutant sources such as impervious areas, instead of the existing treatment method at the end of rainwater pipes, and manages the whole basin equally to contaminate public water and groundwater due to nonpoint pollutants. There is an effect that can prevent.

In addition, the present invention can be installed in a small space, the powerless and unmanned system with simple configuration reduces the manufacturing and installation costs, and is efficient in maintenance and flexible design change according to the drainage area and the site situation. In addition, it provides the function to control the flow rate by temporarily storing a certain amount of rainfall runoff in the concrete box during the treatment of contaminants and infiltrating underground, and is useful for providing a natural non-pollutant treatment system due to planting. There is this.

Claims (4)

The upper surface is opened so that the rainfall runoff flows through the external inclined surface 11, and the lower part has a perforated part to which the treated water outlet pipe 61 is connected so that the overflowed or treated rainfall runoff is transferred to the public water. A box 10; An initial rainfall induction furnace 20 for guiding rainfall runoff flowed into the concrete box 10 into the soil media layer 70; An initial rainfall guided jaw 30 which becomes a boundary where the rainfall runoff flows into the first storage tank 41 when the rainfall runoff flows by a predetermined amount or more; An inner partition wall 40 formed to distinguish the hollow portion in which the first storage tank 41, the second storage tank 42, and the soil media layer 70 are filled in the concrete box 10; Rainfall outflow water flowing through the initial rainfall guide jaw 30 is formed in the first storage tank 41 at a lower portion of the partition wall that separates the first storage tank 41 and the second storage tank 42 from the inner partition wall 40. 2, the overflow water drain port 50 formed to flow into the storage tank 42 and Non-point pollutant treatment system, characterized in that consisting of a hole drainage pipe (60) for collecting the rainfall runoff water treated in the hollow portion filled with the soil filter medium (70) to the second storage tank (42). The method of claim 1, Non-contaminant treatment system, characterized in that the soil filter medium (70) is further configured to fill the hollow formed by the inner partition 40 of the concrete box 10 to be purified as the rainfall runoff passes. The method of claim 2, Non-point pollutant treatment system, characterized in that the soil cover (71) is further configured to prevent the loss of the soil medium layer (70). The method of claim 2 or 3, The cover mesh net 80 that can be opened and closed on the upper portion of the concrete box 10 to be easily removed so that the plant 72 and the floating material planted in the soil media layer 70 is characterized in that it is further configured Nonpoint Pollutant Treatment System.

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