KR101127489B1 - Apparatus for reducing non-point pollution material of road - Google Patents

Abstract

The present invention relates to an apparatus for reducing non-point pollutants on roads. The apparatus for reducing non-point pollutants on roads according to the present invention includes a hopper and discharges rainwater flowing into the rainwater receiver to the filtering unit. In addition, the filtration layer of the filtration unit is formed of a plurality of modules that can be assembled can reduce the installation cost and time.
In the present invention, the initial rainwater may be sent to the filtration unit to filter the boiling point contaminants, and in the case of a large amount of precipitation, the rainwater that is not the initial rainwater may overflow to the top of the hopper to control the drainage rate.

Description

Apparatus for reducing non-point pollution material of road}

The present invention relates to an apparatus for reducing non-point pollutants on a road, and more specifically, by having a hopper for discharging rainwater flowing into a rainwater receiver installed on a roadside to a filtering unit, the initial rainwater is sent to the filtering unit to remove the boiling point pollutants. In the case of filtering and heavy precipitation, it relates to a road non-point pollutant abatement apparatus that can control the drainage rate by flooding the rainwater to the top of the hopper.

Non-point pollution refers to pollutants being polluted by a fluid source rather than having a specific place. Boiling point pollutants are mainly discharged along with surface runoff during rainfall. Representatives include airborne or ground dust, garbage, fertilizer and pesticides applied to farmland, and barn runoff. In particular, there are many toxic pollutants such as oil and heavy metals on the road, and in the early stages of rainfall, non-point pollutants are mixed with rainwater and tend to be concentrated at high concentrations.

In general, the drainage pipe is mainly buried in the road for draining rainwater, side gutters are installed on one or both sides of the road to induce rainwater to the drainpipe. Storm drains are installed at regular intervals so that rainwater collects in storm drains and is discharged into drains. However, the conventional roadside drainage facility has been designed for the purpose of only draining rainwater quickly, there is a problem that the non-point pollutants generated in the road as it is discharged.

In order to solve this problem, the interest in the apparatus for removing the non-point pollutants of the road primarily has increased, for example, Korean Patent No. 10-0920060, such as "Road non-point pollution reduction equipment integrated with boundary stone" Filed. However, this invention has a problem that it is difficult to install where there is no boundary stone. In addition, when installing a device for reducing the non-point pollutants in the rainwater drainage facility of the road there is a problem that the drainage rate is slowed and the surroundings are flooded when there is a lot of precipitation.

Therefore, it is necessary to develop a device for reducing the non-point pollutants on the road while reducing the non-point pollutants generated on the road.

An object of the present invention is to provide an apparatus for reducing the boiling point pollutants on the road that can reduce the boiling point pollutants generated on the road. In particular, the present invention is to provide a boiling point pollutant reduction device that can reduce the boiling point pollutants on the road without affecting the drainage rate by intensively filtering the initial rainwater containing a lot of boiling point pollutants.

Another object of the present invention is to provide a non-point pollutant reducing device of the road is easy to install and easy to maintain by forming a plurality of modules that can be assembled to the media layer.

In order to achieve the above object, the apparatus for reducing boiling point pollutants in a road according to an embodiment of the present invention includes a rainwater receiver and a filter part. The storm receiver has a grating cover and a hopper. The grating cover covers the upper side of the storm receiver. The hopper is open at the top and has an outlet at the top of the side. The hopper is located at the bottom of the grating cover, and the rainwater introduced into the hopper through the grating cover is discharged to the outlet when a certain amount. The filtration section includes a reservoir, a filter bed, and a discharge induction section. Rainwater is discharged into the reservoir into the outlet of the hopper. The filter media layer is located at the bottom of the reservoir to provide the filter media and rainwater is filtered. The discharge induction part is located at the bottom of the media layer to induce the discharge of rainwater.

The rainwater contaminant reduction device of the road according to the embodiment of the present invention may further include a screen for filtering foreign matter located between the grating cover and the hopper.

In the apparatus for reducing boiling point pollutants in a road according to an embodiment of the present invention, the filter media layer may be formed of a plurality of modules that can be assembled.

In the apparatus for reducing boiling point pollutants in a road according to an embodiment of the present invention, the filter media layer may further include an oil adsorption unit.

In the apparatus for reducing boiling point pollutants in a road according to an exemplary embodiment of the present invention, the filter media layer may include a plurality of layers having different media. Between each layer a barrier is installed. The barrier walls are alternately positioned to form a zigzag filtration path.

In the apparatus for reducing the boiling point pollutant of the road according to an embodiment of the present invention, the discharge induction part of the filtering unit may be in the form of installing a hole on the bottom of the impermeable layer and filling gravel around the hole.

The present invention can reduce the boiling point contaminants generated on the road by filtering the rain on the road side in the filtering unit. In this case, the initial rainwater containing a lot of non-point contaminants through the hopper may be concentrated and introduced into the filtration unit to increase the purification efficiency, and in case of precipitation, the rainwater may overflow to the top of the hopper to control the drainage rate.

In addition, the present invention can be installed by using the rain gutter and the side opening that is installed on the existing roadside can reduce the installation cost and installation time. In particular, the present invention can be formed by a plurality of modules that can be assembled to the filter media layer, it can be easy to install, and the maintenance of the media layer can also be convenient.

In addition, the filter medium layer of the present invention may be provided with an oil adsorption unit to adsorb oil that occupies a large portion of the non-point pollutants on the roadside, thereby increasing the purification efficiency and extending the use period of the filter medium.

In addition, the media layer of the present invention is composed of a plurality of layers having different media and by providing a barrier wall for forming a zigzag filtration path between each layer, the time for purifying rainwater through the mediator to increase the purification efficiency of rainwater Will be higher.

1 is a side view conceptually showing an apparatus for reducing non-point pollutants on a road according to an exemplary embodiment of the present invention.
2 is a view showing that the non-point pollutant reduction apparatus of the road according to an embodiment of the present invention is installed.
3 is a view showing that the filter media layer in accordance with an embodiment of the present invention is formed of a plurality of modules that can be assembled.
4 is a view showing that the filter media layer of the filter unit according to an embodiment of the present invention includes an oil adsorption unit.
5 is a view showing that the filter media layer of the filter according to an embodiment of the present invention forms a zigzag filtration path.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it is noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

1 is a side view conceptually showing an apparatus for reducing non-point pollutants on a road according to an embodiment of the present invention, and FIG. 2 is a view showing an apparatus for reducing non-point pollutants on a road according to an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, the apparatus 1000 for reducing non-point pollution of a road according to an exemplary embodiment of the present invention includes a storm receiver 1100 and a filter unit 1200. Rainwater receiving unit 1100 and the filter unit 1200 is buried in the basement along the roadside.

Storm receiver 1100 includes a grating lid 1110, a hopper 1120, and a screen 1130. The grating cover 1110 is mainly formed of a material such as steel in the form of a grate. The grating cover 1110 is installed on the upper side of the storm receiver 1100 to prevent foreign substances other than storm rain from entering the storm receiver 1100.

Hopper 1120 is open at the top and closed at the side and bottom. The hopper 1120 is located under the grating cover 1110. For this purpose, the hopper 1120 may include a fixed mount protruding toward the side wall of the rain receiver 1100 at the upper side of the hopper 1120. An outlet 1121 is formed at an upper side of the hopper 1120. The outlet 1121 is connected to the reservoir 1210 of the filtration unit 1200 by passing through the side wall of the storm receiver 1100. Rainwater introduced into the hopper 1120 is discharged to the filtration unit 1200 through the discharge port 1121 when the discharge port 1121 is formed to a height. As the outlet 1121 is formed on the upper side of the hopper 1120, the rainwater flowing into the filtration unit 1200 can be secured free fall, so there is no need to install a separate installation to secure the free fall. . The hopper 1120 may be formed of a material such as steel to withstand the load due to rain.

The screen 1130 may be installed between the grating cover 1100 and the hopper 1120. The screen 1130 filters out small foreign matter contained in rainwater that has passed through the grating cover 1100 in a net-like shape. The screen 1130 may also include a mounting portion connected to the sidewall of the rain receiver 1100 to be positioned under the grating cover 1110.

Rainfall receiver 1100 is formed with a discharge port 1140 for connecting the rainwater to the drain pipe on the lower surface. The discharge port 1140 may be provided with a net for filtering foreign matter.

The filtration unit 1200 includes a reservoir 1210, a medial layer 1220, and a discharge induction unit 1230. The reservoir 1210 is a space in which rainwater that has passed through the outlet 1121 of the hopper 1120 is introduced. Since the reservoir 1210 is formed, the rainwater flowing into the filtration unit 1200 may secure a free fall. In addition, when there is a lot of rainwater flowing in, rainwater flows along the reservoir 1210, and the rainwater spreads through the entire filter layer 1220 to increase the filtration speed.

The reservoir 1210 may be provided with a shock absorbing portion 1211 at the point where the rainwater flowing from the outlet 1121 of the hopper 1120 falls. The shock absorber 1211 may be shaped to enclose the gravel in a mesh formed of metal, engineering plastics, or the like. By providing the shock absorbing part 1211, the filter medium layer 1220 can be prevented from being damaged by the falling of the rain, and the rain filtering part 1211 can also perform the filtering of the rain.

The cover 1212 may be positioned at an upper end of the reservoir 1210. Usually, the cover 1212 is coupled to the upper end of the reservoir 1210, and may open the cover 1212 when cleaning or repairing the interior of the filtration unit 1200.

The filter medium layer 1220 including the filter medium is positioned below the reservoir 1210. Rainwater is filtered while passing through the medial layer 1220. The media can be zeolite, activated carbon, charcoal, anthracite, bent knight, wood chips, sand and the like. In addition, a variety of media suitable to reduce the boiling point pollutants can be used.

A discharge induction part 1230 is disposed below the filter layer 1220 to induce discharge of filtered rainwater. In the present embodiment, the discharge induction part 1230 may have a shape in which a hole hole 1232 is installed on the bottom of the impermeable layer and the gravel 1231 is filled around the hole hole 1232. Rainwater that has passed through the filter medium layer 1220 is filtered once more through the gravel 1231 and is introduced into the hole hole 1223 through a hole formed in the hole hole 1232 and then discharged to both ends of the hole hole 1231. Both ends of the perforated pipes 1232 are connected to neighboring storm drains, respectively, and the rainwater discharged through the perforated pipes 1232 is discharged to the outlet of the storm drain.

Such a filtering unit 1200 may be installed in the U-shaped side opening installed on the existing roadside. In this case, the cost of the facility can be reduced and the construction period can be reduced.

When it rains, rainwater, including boiling point contaminants on the road, flows into the hopper 1120 through the grating cover 1110. Rainwater passes through the screen 1130 before it enters the hopper 1120 and small foreign matters are filtered out. Rainwater introduced into the hopper 1120 stays until the height of the outlet 1121 in the hopper 1120, the heavy sediment, such as soil, sludge, contaminants, etc. will precipitate.

Rainwater in which the precipitate is precipitated is introduced into the reservoir 1210 of the filter portion 1200 through the outlet 1121. Rainwater introduced into the reservoir 1210 flows into the filter medium layer 1220 through the shock absorbing portion 1211. When the amount of rainwater introduced into the reservoir 1210 is large, the rainwater flows along the reservoir 1210 and spreads to the entire filter layer 1220 while flowing into the filter layer 1220. Rainwater in which the boiling point contaminants are filtered while passing through the filter media layer 1220 is introduced into the storm receiver 1100 along the discharge induction unit 1230, and is discharged to the drain pipe through the discharge port 1140 of the storm receiver 1100.

In the case of a lot of precipitation, the initial rainwater containing a lot of non-point pollutants is introduced into the hopper 1120 and then filtered through the outlet 1121 to the filter unit 1200, and the rainwater having a relatively low boiling point pollutant is It overflows through the open upper portion of the hopper 1120 and falls to the lower surface of the storm receiver 1100 and is discharged to the discharge port 1140. Therefore, it is possible to prevent the flooding of the roadside during heavy rains due to the speed of drainage.

3 is a view showing that the filter media layer in accordance with an embodiment of the present invention is formed of a plurality of modules that can be assembled.

As shown in FIG. 3, the filter media layer 2220 of the filter part 2200 according to the embodiment of the present invention may be formed of a plurality of assembling modules. Each module may have a structure in which a hole is formed in a lattice shape and a filter material is filled in the case. The case may be coupled with a neighboring case by a fastening part or an interference fit. For this purpose, grooves and protrusions may be formed in the case. The case may be formed of a material that is not easily damaged by an external impact such as steel or engineering plastic.

When the mediator layer 2220 is formed of a plurality of modules that can be assembled, the installation of the mediator layer 2220 is easy. That is, the installation is completed by simply installing the discharge induction unit 2230, bringing the pre-fabricated module to the construction site and assembling it on the discharge induction unit 2230. In addition, in the case of cleaning or repairing the media layer 2220, the cover 2212 of the reservoir 2210 may be opened, and the combined module may be separated and cleaned or repaired or replaced. This reduces installation costs and time, as well as maintenance costs and time.

4 is a view showing that the filter media layer of the filter unit according to an embodiment of the present invention includes an oil adsorption unit.

Roadside stormwater contains a lot of oil, especially from cars. Therefore, unless there is a separate configuration for filtering such oil, the filter media layer 3220 is contaminated by oil and should be frequently cleaned or replaced.

In this embodiment, as shown in FIG. 4, the filter media layer 3220 of the filter part 3200 includes an oil adsorption part 3221. The oil adsorption unit 3221 is preferably installed at the point where the rainwater flowing in from the outlet 3121 of the hopper falls. That is, before the rainwater that flows in contact with the other portions of the media layer 3220, the oil must first be adsorbed to prevent the other portions from being contaminated by the oil.

The oil adsorption unit 3221 may be various materials capable of adsorbing oil. For example, the oil adsorption unit 3221 may be formed by stacking oil adsorption cloths or by agglomerating sponges. The outside of the oil adsorption unit 3221 may be surrounded by a mesh formed of a material resistant to impact.

In this embodiment, the oil adsorption unit 3221 is positioned on the media layer formed of a plurality of modules that can be assembled, but is not limited thereto and may be positioned on one media layer filled with media as shown in FIGS. 1 and 2. .

5 is a view showing that the filter media layer of the filter according to an embodiment of the present invention forms a zigzag filtration path.

As illustrated in FIG. 5, the mediator layer 4220 according to an embodiment of the present invention may be configured of a plurality of layers 4220a, 4220b, 4220c, and 4220d having different media. A blocking wall 4230 is disposed between the plurality of layers 4220a, 4220b, 4220c, and 4220d to form a zigzag filtration path that is offset from each other.

In the present embodiment, the plurality of filter layers 4220 may include a first filter layer 4220a, a second filter layer 4220b, a third filter layer 4220c, and a fourth filter layer 4220d. The first filter layer 4220a, the second filter layer 4220b, the third filter layer 4220c, and the fourth filter layer 4220d are stacked in this order.

The first filter layer 4220a is formed of sand to filter the residual suspended solids contained in the rainwater. The second filter layer 4220b is a layer through which the fine microfloat material passing through the first filter layer 4220a is filtered, thereby filtering the suspended solids (SS) included in the rainwater, that is, floating and soluble fine particulate matter. Lower oxygen demand (BOD). The filter medium used in the second filter layer 4220b may be zeolite, activated carbon, charcoal, anthracite, bent knight, wood chip, or the like. The third filter layer 4220c is a layer for absorbing and filtering heavy metals from rainwater that has passed through the second filter layer 4220b. Activated carbon, volcanic ash, plant biomass, or the like may be used as the filter medium. The fourth filter layer 4220d is a layer for decomposing and removing organic matter from rainwater that has passed through the third filter layer 4220c. Microorganisms that decompose the organic matter contained in the boiling point contaminants are inhabited. The organic matter of the boiling point contaminant contained in the rainwater is decomposed by the microorganisms in the fourth filter layer 4220d. To this end, the fourth filter layer 4220d is preferably used to create an environment using gravel or the like so that microorganisms can inhabit and proliferate.

The blocking wall 4230 is between the first to fourth filter layers 4220a, 4220b, 4220c, and 4220d, that is, between the first and second filter layers 4220a and 4220b, and the second filter layer 4220b. It is provided between the 3rd mediator layer 4220c, and between the 3rd mediator layer 4220c and the 4th mediator layer 4220d, respectively. The blocking wall 4230 is positioned in contact with the inner wall of the filtration unit 4200, and the other side is spaced apart from the inner wall of the filtration unit 4200 by a predetermined interval, and is disposed to be shifted with each layer. That is, as shown in FIG. 5, between the barrier wall 4230 and the third filter layer 4220c and the fourth filter layer 4220d disposed between the first filter layer 4220a and the second filter layer 4220b. The blocking wall 4230 disposed in the wall is placed on the same vertical line away from the inner wall, and the blocking wall 4230 disposed between the second filter layer 4220b and the third filter layer 4220c is disposed at the inner wall. As the separated portion is placed on another vertical line, the rainwater passing through the first to fourth media layers 4220a, 4220b, 4220c, and 4220d passes through the zigzag. Accordingly, the time for purifying the rainwater through the filter mediums constituting the first to fourth filter layers 4220a, 4220b, 4220c, and 4220d increases, thereby increasing the purification efficiency of the rainwater.

A scaffold 4221 may be installed at an upper end of the first filter layer 4220a so that an operator may open and close the cover 4212 of the reservoir 4210 to perform operations such as removing foreign matters. The scaffold 4221 may be formed in the shape of a grate, and by installing the scaffold 4221, it is possible to prevent the first media layer 4220a formed of sand from being scattered by rain falling from the outlet 4121 of the hopper. .

In addition, when the rainwater that has passed through the fourth filter layer 4220d is discharged to the discharge induction part 4230, the microorganisms of the fourth filter layer 4220d may be discharged together to the discharge induction part 4230. Accordingly, a strainer may be installed between the fourth filter layer 4220d and the discharge induction part 4230 so as to prevent the outflow of microorganisms.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate description of the present invention and to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

1000: road non-point pollutant reduction device
1100: excellent receiving 1110: grating cover
1120: Hopper 1121, 3121: outlet
1130: screen 1140: outlet
1200, 2200, 3200, 4200: filtration unit 1210, 4210: reservoir
1211: shock absorber 1212, 2212, 4212: cover
1220, 2220, 3220, 4220: media layer 1230, 2230, 4230: discharge guide
1231: gravel 1232: merit pipe
3221: oil adsorption unit

Claims (6)

A rain gutter having a grating cover covering an upper side and a hopper disposed at a lower portion of the grating cover and having an upper end open and having an outlet formed on an upper side thereof and having a predetermined amount of rainwater introduced therein; And
A storage tank into which rainwater discharged into the discharge port of the hopper flows in, a filter medium layer disposed below the storage tank, and having rainwater filtered, and a discharge induction part positioned below the filter layer to induce discharge of rainwater. It includes; filtering unit having;
The exhaust induction unit is installed on the bottom of the water-permeable layer of the perforated pipe, characterized in that the installation of gravel filled around the perforated pipes. The method of claim 1,
The storm receiver is located between the grating cover and the hopper further comprises a screen for filtering foreign matter, the non-point pollutant reduction apparatus of the road. The method according to claim 1 or 2,
The media layer is a non-point pollutant reduction device of the road, characterized in that formed of a plurality of modules that can be assembled. The method according to claim 1 or 2,
The media layer is a non-point pollutant reduction device of the road, characterized in that further comprising an oil adsorption unit. The method according to claim 1 or 2,
The filter media layer is composed of a plurality of layers having different media,
A non-point pollutant abatement apparatus for a road, characterized in that a barrier wall is disposed between each layer to be offset from each other to form a zigzag filtration path. delete

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