KR20140081435A - Non - point pollution decrease apparatus using screen array - Google Patents

Abstract

Disclosed is a nonpoint pollutants reducing apparatus using a screen array. The nonpoint pollutants reducing apparatus using the screen array according to the present invention is installed in an artificial detention facility or in a waterway in order to treat or reduce nonpoint pollutants introduced into rivers, ponds, streams, and so on, and comprises multiple screens mounted inside the waterway to be spaced apart from each other at predetermined intervals in order to filter the nonpoint pollutants flowing in the waterway by stages; and polluted soil precipitating recesses formed on the floor of the waterway in front of the screens for precipitating polluted soil contained in the nonpoint pollutants. According to the present invention, the screens which are different from one another in height and in size of meshes are arranged in the waterway at the predetermined intervals and the polluted soil precipitating recesses are respectively formed on the floor in front of the screens, such that the nonpoint pollutants reducing apparatus can effectively remove the polluted soil contained in the nonpoint pollutants and effectively treat or reduce the nonpoint pollutants. Moreover, if much of nonpoint pollutants are induced or stop the screens, the nonpoint pollutants reducing apparatus makes the nonpoint pollutants overflow through an overflow part in order to prevent blocking of a flow of the nonpoint pollutants.

Description

TECHNICAL FIELD [0001] The present invention relates to a non-point pollution abatement device using a screen array,

The present invention relates to a non-point pollutant abatement apparatus using a screen arrangement, and more particularly, to a non-point pollutant abatement apparatus using a screen arrangement wherein a plurality of screens having different heights and different mesh sizes are arranged at predetermined intervals in a water channel, The present invention relates to a non-point pollutant abatement apparatus using a screen array capable of effectively removing non-point pollutants and contaminated soil by forming contaminated soil sediment grooves.

In general, water pollution sources are divided into point pollution sources and non-point pollution sources. Point pollution sources are mainly domestic wastewaters generated in ordinary households or business areas, industrial wastewater discharged from factories, animal wastewater generated in large- Tracking the amount of emissions is relatively easy and is the main subject of sewage treatment.

On the other hand, non-point pollution source refers to drainage from agricultural drainage, mine waste water, livestock wastewater from small-scale livestock facilities, living sewage or forest in rural areas without sewerage, and these pollutants are relatively dependent on natural treatment due to less contribution of pollution. In other words, nonpoint pollution sources are also called non-specific pollution sources, surface pollution sources, mobile pollution sources or other pollutant sources. Unlike point pollution sources having specific discharge paths, nonpoint pollution sources are unspecified such as urban road drainage and agricultural drainage Point or area through which the non-point pollutant is generated through the discharge path.

Aquaculture facilities, transportation facilities, maintenance or disposal facilities, simplified processing facilities for enriched fisheries products, photo processing facilities, etc., which have been renamed as 'other water pollution sources' in the 'Specified Facility' under the Water Quality Protection Law, , Product yard, land change area, and other facilities.

Non-point pollutants are pollutants that come out along with surface runoffs when they are exposed to rain. These include fertilizers, pesticides, soil sprinkling plants, housing spills, traffic pollutants, dust and garbage in urban areas, Water, and air pollutants that have fallen on the surface of the earth.

Therefore, the rainwater containing all the pollutants is actually the main nonpoint source. Since non-point pollutants usually flow out with a lot of rainfall, there is a large difference between daily and seasonal emissions, and it is difficult to forecast and quantify, and it is affected by weather conditions, geology, and topography which are difficult to manure. Therefore, the emission standard is not established systematically.

As of the end of 1999, as a result of the "Non-point Source Pollution Research Service" (conducted in June 2000) on the upper stream of the Paldang Dam in the Han River, the main water source of the metropolitan area residents, The pollutant loads generated from point sources such as industrial wastewater and livestock wastewater were 804.4%, 130,650t / year, and the pollution load from nonpoint pollution sources was 19,3193t / year, which was 19.6%.

In addition, the non-point pollution source is estimated to be 44.5% of the total discharge load (BOD standard), and nonpoint pollution sources have a significant impact on water pollution. The four major geomorphic, Geum River, Nakdong River and Youngsan River It is expected to show a pattern. Therefore, as the regulations for point sources with regulatory standards are continuously strengthened and environmental facilities are expanded, the impact of non - point pollution sources on water quality will gradually increase.

As a countermeasure for reducing pollution, conventionally, in order to reduce pollution, the road surface drainage in an urban area is provided with a storage tank to allow the pollutants generated due to the initial rainfall to be settled and discharged, · Agricultural drainage, which contains a large amount of agricultural chemicals, was installed in a reservoir, a wetland purification facility, and aquatic plants to prevent direct influx into the river.

As a prior art for reducing or treating such non-point pollutants, various treatment apparatuses or abatement apparatuses including a Korean Patent Registration No. 10-0762981 (published on October 10, 2007) are disclosed.

Since the non-point pollutant treatment apparatus or the reduction apparatus according to the prior art are installed in the water channel and the non-point pollutants introduced are filtered and purified, effective treatment or reduction of non-point pollutants can not be achieved. For example, when the non-point pollutant is filtered using a screen, the screen can not effectively filter the gravel, and when the screen is clogged with suspended solids, the entire channel is clogged.

Korean Patent No. 10-0762981 (Published on October 2, 2007)

It is an object of the present invention to provide a means for effectively treating or reducing non-point pollutants introduced into a reservoir by using a plurality of screens.

According to the present invention, the above object is attained by providing a water supply system for a water treatment system, which is installed in a waterway to treat or reduce non-point pollutants introduced into artificial reservoirs, rivers, ponds, rivers, And a contaminated soil settlement groove is formed at the bottom of the waterway in front of the screen in a direction in which the non-point contaminant flows in, so that contaminated soil contained in the non- By using a screen arrangement in which the non-point pollutant is reduced.

The screens may be gradually formed in a direction toward the direction in which the non-point contaminants flow in.

The screens are formed such that the height gradually decreases toward the direction of flow out of the non-point contaminants. The first screen is formed to be higher than the depth of the water channel so as to prevent overflow , And the second screen may have a size gradually smaller than the depth of the water channel so that an overflow is formed in the upper area.

The side walls of the water channel may be formed with a pair of installation grooves for inserting the screens from above.

The upper end of each screen forming the overflow portion is provided with a float filtering unit for filtering the float contained in the non-flocculated pollutant that is overflowing. The float filtering unit is disposed in the upper end of the screen in a horizontal or concave And then the end portion may be bent upward.

The contaminated soil settlement groove is provided with a flow-restraining portion for guiding the inflow of the captured contaminated soil and inhibiting the outflow, wherein the flow-restraining portion is provided at the bottom of the area close to the screen or at the inner wall of the contaminated soil- It can be protruded obliquely in the direction in which the contaminant flows.

The contaminated soil settlement groove is provided with a flow-restraining member for suppressing the leakage of the contaminated soil to be captured. The flow-restraining member may be formed in a metal net shape and filled in the contaminated soil settlement groove.

The screens may have a protruding filtration portion protruding in a direction in which the non-point contaminant flows or in a direction in which the non-point contaminant flows out so as to increase the surface area for filtering non-point contaminants.

The protruding filtration unit may include at least one or more protruding filtration units.

The protruding filtration part may be formed to protrude in a curved or straight line shape.

According to the present invention, a plurality of screens having different heights and different mesh sizes are arranged at predetermined intervals in a water channel, and a contaminated soil settlement groove is formed at the front bottom of each screen, It is possible not only to effectively remove the soil, but also to effectively treat or reduce the non-point pollutants.

In addition, when a large amount of non-point pollutant flows in or the screen is clogged, it is possible to prevent the phenomenon of blocking the flow of non-point pollutants by making the flow over the overflow portion.

The non-point pollutant abatement apparatus according to the present invention can also be applied to an inflow water of a conventional non-point pollution abatement apparatus.

1 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a first embodiment of the present invention.
2 is a schematic plan view showing a nonpoint pollutant abatement apparatus using the screen arrangement shown in FIG.
FIG. 3 is a state diagram showing a state where a non-point pollutant reduction apparatus using the screen arrangement shown in FIG. 1 is applied.
4 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a second embodiment of the present invention.
5 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a third embodiment of the present invention.
6 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a fourth embodiment of the present invention.
7 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a fifth embodiment of the present invention.
8 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a sixth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

1 is a schematic side view of a non-point pollutant abatement apparatus using a screen arrangement according to a first embodiment of the present invention. FIG. 2 is a schematic view of a non-point pollutant abatement apparatus using a screen arrangement shown in FIG. Fig. 3 is a state diagram illustrating a state where a non-point pollutant reduction apparatus using the screen arrangement shown in FIG. 1 is applied.

As shown in FIGS. 1 to 3, the non-point pollutant reduction apparatus using the screen array according to the present invention includes a water channel 20 for processing or reducing non-point pollutants introduced into artificial reservoir 10, river, pond, river, And includes a screen 30 in which a plurality of openings are arranged at predetermined intervals in the water channel 20 having an open top. At the bottom of the waterway 20 in the front area of the screen 30, a contaminated soil settlement groove 22 for depositing contaminated soil contained in non-point contaminants is formed.

This will be described more specifically.

The screen 30 is for filtering non-point contaminants, and a plurality of the filters 30 are arranged. In the present embodiment, the number is described based on four, but the present invention is not limited thereto, and may be configured in various numbers depending on the type and scale of the channel, and the type of non-point pollutant. These screens 30 are fitted into the installation grooves 24 formed on the inner wall of both sides of the water channel 20 from the upper part to the lower part while maintaining equal intervals or predetermined intervals, respectively. Each of the screens 30 gradually has a smaller mesh size in a direction in which the non-point contaminant flows out. That is, the first screen 30 is formed with a mesh (hole size or number of holes) large and gradually becoming smaller toward the end of the direction of the outflow. This is to allow a relatively large foreign matter to be filtered in the first to second screen 30 and a relatively small foreign matter to be filtered in the third to fourth screen 30.

Each of the screens 30 is formed to have a gradually lower height. That is, the height gradually decreases from the direction in which the non-point contaminant flows in the direction in which the non-point contaminant flows in. That is, in order to form the ridge portion 40 in the upper region of each screen 30 except for the first screen 30 will be. The overflow portion 40 is intended to allow the non-point pollutant to flow over when a large amount of non-point contaminant is rapidly introduced, the screen 30 is clogged, or excessive non-point contaminant is introduced.

The contaminated soil settlement grooves 22 are recessed at the bottom of the channel 20 in front of the screen 30 in the direction in which the non-point pollutant flows, so that the contaminated soil contained in the non-point pollutant is precipitated and captured. The contaminated soil settlement grooves 22 may be formed in various shapes, and the more the soil is formed, the more the contaminated soil may be settled, and the settled soil may not flow out again due to the vortex.

The operation of the apparatus for reducing non-point pollutants using the screen array according to the first embodiment of the present invention will now be described.

1 to 3, a water channel 20 for introducing non-point pollutants to the reservoir 10 is provided between the contamination source and the reservoir 10, and the water channel 20 is provided with a plurality of screens (30) are installed at predetermined intervals. At this time, they are installed in the direction in which the non-point pollutant flows from the largest one of the screens 30, and are installed in order. This is to allow the ridge portion 40 to be formed on the second screen 30 from above.

A contaminated soil settlement groove 22 is formed in the front bottom of each screen 30 so that the contaminated soil settlement grooves 22 are not formed in the front area of the last screen 30 close to the reservoir 10 have.

In this state, when the non-point contaminant flows into the channel 20, the non-point contaminant is primarily filtered by the first screen 30, and the contaminated soil contained in the non-point contaminant is located in front of the first screen 30 So that it flows into the contaminated soil settlement groove 22 and is settled.

In this process, the non-point pollutants are filtered while passing through each screen 30 in sequence, and the soil included in the non-point pollutants flows into the respective contaminated soil settlement grooves 22 and is settled.

At this time, since the mesh of each screen 30 is formed gradually smaller toward the outlet portion from the inlet portion side, it is possible to filter foreign matter of small particles included in the passed non-point contaminants as well as foreign matter of small particles.

The non-point contaminants that have passed through the filtration space where each screen 30 is formed are filtered by the screen 30 and the contaminated soil settlement grooves 22 and can be discharged to the reservoir 10 in a state where the contamination is reduced will be.

On the other hand, when the non-point pollutant increases sharply or flows into the screen 30, or when the screen 30 is blocked by foreign matter, the non-point pollutant flows through each filtration space through the flow- When sudden non-point pollutants are introduced as in the case of rainy days, non-point pollutants flow over the screen 30 through the run-off section 40, so that they are not disturbed by the flow of non-point pollutants.

As described above, the non-point contaminants flow into the filtration space formed by the respective screens 30, and are sequentially filtered by the screen 30 and the contaminated soil settlement grooves 22 and then flowed out to the reservoir 10, And the pollution degree can be effectively reduced.

Meanwhile, FIG. 4 is a schematic side view showing a non-point pollutant reduction apparatus using a screen arrangement according to a second embodiment of the present invention.

As shown in FIG. 4, the apparatus for reducing non-point pollutants using the screen array according to the second embodiment is configured to induce inflow of contaminated soil captured in the contaminated soil settlement grooves 22, (22A) is provided in the second embodiment. That is, the outflow suppressing portion 22A is formed so as to be sloped in the direction in which the non-point contaminant flows in the bottom of the channel 20 of the region near the screen 30 or in the inner wall of the contaminated soil settlement groove 22.

As shown in FIG. 4, the outflow restraining member 22A serves to prevent the inflow of the soil restraining member 22A from escaping again, so that the contaminated soil can be effectively settled. At this time, the outflow suppressing member 22A may be formed in a mesh shape, but in this case, it is preferable that the outflow suppressing member 22A is formed in such a size that the gravel of a predetermined thickness can not pass through.

5 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a third embodiment of the present invention.

As shown in FIG. 5, in the non-point pollutant abatement apparatus using the screen arrangement according to the third embodiment, suspended in the overflowing non-point pollutant is filtered at the upper end of each screen 30 forming the flow- Except that a suspended solids filtering section 32 is provided for the purpose of controlling the flow of suspended solids.

The float filtration unit 32 is formed by vertically bending the upper end of the screen 30 after the upper end of the screen 30 is bent horizontally or concavely in the direction in which the non-point pollutant flows out.

Therefore, as shown in FIG. 5, when the non-point pollutant flows over the suspended particles, the suspended particles contained in the non-point pollutant pass through the suspended particle filtering unit 32, thereby filtering suspended particles.

Meanwhile, FIG. 6 is a schematic side view showing a non-point pollutant reduction apparatus using a screen arrangement according to a fourth embodiment of the present invention.

As shown in FIG. 6, the non-point pollutant reduction apparatus using the screen arrangement according to the fourth embodiment is provided with a flow-out restraining member 50 for suppressing the leakage of contaminated soil captured in the contaminated soil settlement grooves 22 The same as the above-described embodiments.

Since the outflow inhibiting member 50 is formed in the form of a metal fiber or a metal net and is filled in the contaminated soil settlement groove 22, the foreign matter introduced into the contaminated soil settlement groove 22 filled with the outflow inhibiting member 50, It is interfered with the outflow inhibiting member 50 formed in the form of a fiber or a metal net and is not easily leaked.

7 is a schematic side view showing a nonpoint pollutant abatement apparatus using a screen arrangement according to a fifth embodiment of the present invention.

7, the apparatus for reducing non-point pollutants using the screen array according to the fifth embodiment includes a screen 30 in which the non-point contaminants are introduced in a direction in which the non- And has a protruding filtration portion 34 protruding from the surface of the protruding portion.

That is, as shown in FIG. 7, since the screen 30 is formed so as to protrude forward (in a direction in which non-point contaminants flow), the surface area in contact with non-point contaminants is widened and the filtering ability can be improved. The protruding filtering portion 34 may be formed in a straight line or a curved line, and it is preferable that the front region is narrow and the rear region is formed in a wide cone or cone shape. This is to ensure efficient filtration without interfering with the flow of non-point pollutants.

 By forming the protruding filtration part 34 on the screen 30 as described above, the contact area between the non-point contaminants and the screen 30 can be enlarged and the filtration ability of the screen 30 can be improved.

8 is a schematic side view of a non-point pollutant reduction apparatus using a screen arrangement according to a sixth embodiment of the present invention. As shown in FIG. 8, The ablation apparatus is the same as the above-described fifth embodiment except that a plurality of protruding filtration units 34 provided on the screen 30 are provided.

The non-point pollutant abatement apparatus using the screen array according to the present invention is simple in structure and easy to install, and can be easily applied to an inflow water of a conventional non-point pollution abatement apparatus.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10: reservoir 20: channel
22: Contaminated soil settlement groove 22A:
24: installation groove 30: screen
32: float filtration part 34: protruding filtration part
40: ridge portion 50: outflow preventing member

Claims (10)

It is installed in a waterway to treat or reduce non-point pollutants introduced into artificial reservoirs, rivers, ponds, rivers, etc.,
A plurality of screens are installed at predetermined intervals in the water channel in order to filter the non-point pollutants flowing in the water channel step by step,
Characterized in that a contaminated soil settlement groove is formed at the bottom of the waterway in front of the screen in the direction in which the non-point contaminant flows in,
Non - point pollutant abatement system using screen array. The method according to claim 1,
The screens,
Characterized in that the mesh is gradually formed in a direction going out from the direction in which the non-point pollutant flows,
Non - point pollutant abatement system using screen array. The method according to claim 1,
The screens,
The height gradually decreases from the direction in which the non-point contaminant flows to the direction in which the non-point contaminant flows,
The first screen is formed to be higher than the depth of the water channel so that the overflow is not formed and the second screen is formed to have a gradually smaller depth than the depth of the water channel so that the overflow is formed in the upper area from the second screen ≪ / RTI >
Non - point pollutant abatement system using screen array. The method according to claim 1,
Wherein a pair of installation grooves for inserting and installing the screens from above are formed on both side walls of the water channel,
Non - point pollutant abatement system using screen array. The method of claim 3,
A float filtering unit for filtering the floating matters contained in the non-spot pollutant to be overflowed is provided at the upper end of each screen forming the overflow unit,
The suspended-
Wherein the upper end of the screen is bent in a horizontal direction or a concave shape in a direction in which the non-point contaminant flows out, and then the upper end is bent upward.
Non - point pollutant abatement system using screen array. The method according to claim 1,
In the contaminated soil settlement groove,
A leakage restraining portion for guiding the inflow of the captured contaminated soil and inhibiting the leakage is provided,
The flow-
Characterized in that the bottom of the area adjacent to the screen or the inner wall of the contaminated soil settlement groove is formed obliquely protruding in a direction in which non-point contaminants are introduced.
Non - point pollutant abatement system using screen array. The method according to claim 1,
In the contaminated soil settlement groove,
A leakage restraining member for restraining the leakage of the entrapped contaminated soil is provided,
The flow-
Wherein the metal is formed in the form of a metal net and filled in the contaminated soil settlement groove.
Non - point pollutant abatement system using screen array. 8. The method according to any one of claims 1 to 7,
The screens,
And a protruding filtration portion protruding in a direction in which the non-point contaminant flows or in a direction in which the non-point contaminant flows out so as to increase the surface area for filtering non-point contaminants.
Non - point pollutant abatement system using screen array. 9. The method of claim 8,
The protruding-
And at least one or more of the above-
Non - point pollutant abatement system using screen array. 9. The method of claim 8,
The protruding-
Characterized in that it is formed in a curved or straight shape.
Non - point pollutant abatement system using screen array.

Images