KR101479462B1 - Apparatus of reducing non-point source contaminants - Google Patents

Abstract

It is possible to automatically adjust the amount of stormwater flowing in accordance with the amount of stormwater remaining in the interior, to separate oil and foreign matter from the stormwater stormwater, and to reduce the amount of nonpoint pollutants ≪ / RTI >
The non-point pollutant abatement apparatus of the present invention comprises a treatment tank divided into a first space and a second space by a partition wall, an inflow portion formed at one side of the first space so that rainwater can flow into the treatment tank, A water level control unit provided in the inflow section and configured to block the inflow of rainwater by means of buoyancy in accordance with the amount of rain in the treatment tank and to block inflow of stormwater and a water level control unit communicating with the inflow unit, And an end of the first space is located at a position lower than that of the inlet, so that the first and second spaces are communicated with each other. And the other end of the oil water separator located in the second space is connected to the other end of the oil separator, And a partition wall which is provided at one side of the first space and through which the infiltrated rainwater passes, a contaminant contained in the rainwater is guided to the partition wall side, and a sedimentation space And an inclined wall which is bent toward the guide portion from the upper end of the vertical wall to prevent re-rising of the precipitated contaminants, and an inclined wall which is formed between the bottom surface of the second space and the partition wall At least one of at least one of a bottom surface and a vertical wall of the second space is rounded to form a vortex in an inflowing storm; A plurality of multi-stage filter units for filtering foreign substances; a residual water remover disposed below the first space and the second space for moving residual water; And a discharge unit provided at an end of the multi-stage filter unit for discharging the storm that has passed through the plurality of multi-stage filter units to the outside, wherein the multi-stage filter unit includes a pair of filters, spaced apart from each other, And a filter frame for detaching the filter, wherein at least one of the pair of filters is provided with a shielding plate for shielding the upper half or lower half so that the rainwater passing through the pair of filters can be filtered while moving up and down .

Description

[0001] APPARATUS OF REDUCING NON-POINT SOURCE CONTAMINANTS [0002]

The present invention relates to a non-point pollutant abatement apparatus, and more particularly, to a non-point pollutant abatement apparatus capable of automatically controlling the amount of rainwater flowing into the inside thereof, purifying the incoming rainwater, And a non-point pollutant abatement apparatus.

Generally, pollutants are generated from point pollutants discharged from clear point sources such as domestic sewage, industrial wastewater and livestock wastewater, and pollutants such as agricultural land, pasture, forest, construction site, mine, landfill, The point of discharge is classified as non-point pollution, which is unspecific, unclear, and is emitted from a wide range of non-point sources.

In the case of point pollutants, it is easy to collect, and since the influence of season and weather is relatively small, it is possible to estimate the amount of pollutants generated throughout the year. Therefore, most purification facilities and wastewater treatment facilities are installed.

On the other hand, non-point pollutants are diluted and diffused into a wide area, and it is difficult to predict because of a serious change in emissions due to natural factors such as rainfall, difficult to collect, There is a difficult problem.

Such non-point pollutants include: fertilizers and pesticides which are not absorbed by the crops and remain in the agricultural land, livestock feces grazed on grassland, untreated livestock wastewater discharged from livestock farming, air pollutants mixed with rainwater, Sewage overflows exceeding the designed amount during rainfall, mixed water and rainwater.

When such non-point pollutants remain on the surface, rainwater flows into public water bodies such as rivers, inland waters, and lake waters along with rainwater, which pollutes the water quality and destroys the ecosystem.

Currently, nonpoint pollution sources account for 42% ~ 69% of total water pollution in Korea, and it is expected to reach 65 ~ 80% within the next few years. Therefore, non-point source management is becoming more important for water quality management and ecosystem protection.

In order to solve such a problem related to the non-point pollution source, a method of purifying the initial pollutant containing the nonpoint pollutant and discharging the purified pollutant to the river is disclosed in a conventional "Non-point Pollutant Disposal Apparatus (Patent No. 10-1353039)" Are specifically known.

As shown in FIG. 1, the apparatus for treating non-point pollutants includes a first partition plate 30, which is upwardly bent while separating an upper space of the settling unit 2, A second diaphragm 40 formed at the lower side of the inlet 10 opposed to the first diaphragm 30 and bent at the lower end thereof and a lower space of the lower portion of the sedimenting section 2, And the diaphragm (50), thereby forming a vortex in the rainwater flowing into the sinking part (2), thereby more efficiently separating the sediment and suspended matter, and treating the nonpointed pollutant so that the amount of dissolved oxygen in the rainwater can be increased Device.

However, the apparatus for treating non-point pollutants can not control the amount of rainwater flowing through the inlet 10, so that when the rainfall is reduced or the rainfall is continuously reduced, the amount of rainwater flowing into the interior of the housing 1 The amount of storm is increased so that the storm can no longer flow into the storm, so that the absorber can not function as a non-point pollutant disposal apparatus but also flows back into the stormwater.

In addition, foreign matter such as trash and gravel, which have been separated from each other in the inside of the housing 1 by the inside of the housing 1 as the inside of the housing 1 becomes full due to the storms, flows into the inlet 10, the outlet 20, the filters 60, There is a problem in that the apparatus can not be restored to a normal state even after the rainfall is over.

In addition, since the position of the discharge port 20 from which the rainwater is discharged is located higher than the bottom, even after the inflow of rainwater is finished, the rainwater remains in an excellent state from the floor to the height of the discharge port.

The stain remaining in the housing 1 can be corrupted even more quickly due to the non-point pollutants. Such decay may deteriorate the functions of the filters 60 and 70, not only generate odors and various insects, It causes contamination of rivers when discharged to the outside.

Korean Patent No. 10-1353039 (Apr. 13, 2013)

In order to solve such a conventional problem, the present invention has an object of automatically adjusting the amount of stormwater flowing in accordance with the amount of stormwater remaining inside, separating oil and foreign matter from the stormwater, Which is capable of discharging the non-point pollutant to the outside.

In order to attain the above object, according to the present invention, there is provided a non-point pollutant abatement apparatus comprising: a treatment tank divided into a first space and a second space by a partition wall; A water level adjusting unit provided in the inflow unit and configured to block the inflow of the stormwater by moving up and down by buoyancy according to the amount of rainwater in the treatment tank and a water level control unit communicating with the inflow unit, A collecting part formed in a perforated network and collecting suspended solids flowing through the inflow part; and a flow path formed therein to communicate the first space with the second space, and the end part located in the first space is connected to the inflow part An oil water separator for separating the rainwater and the oil by the specific gravity by being positioned at a low position and a perforated network formed downwardly inclined toward the partition wall, A guide portion provided on one side of the other end of the oil water separating portion and passing the introduced storm and guiding the contaminants contained in the storm to the partition wall side and the guide portion formed upwardly from the bottom surface of the second space, A re-injury prevention part including a vertical wall for providing a settling space of the contaminant to be precipitated and an inclined wall bent from the upper end of the vertical wall toward the guide part to prevent re-rising of the settled contaminant, At least one of at least one of a bottom surface of the space and the partition wall or a bottom surface of the second space and at least one of the vertical walls is rounded to form a vortex in the inflowing rain, A plurality of multi-stage filter units spaced apart from each other to filter foreign substances contained in the storm; and a multi-stage filter unit provided below the first space and the second space, And a discharge unit provided in the second space end portion and discharging the storm that has passed through the plurality of multi-stage filter units to the outside, wherein the multi-stage filter unit is spaced apart from each other and a predetermined space is formed therein Wherein at least one of the pair of filters includes a pair of filters composed of a perforated network and a filter frame for detachably attaching the filter, Or a shielding plate for shielding the lower half.

The shielding plate includes an upper shielding plate for shielding the upper half of the filter and a lower shielding plate for shielding the lower half, wherein one of the filters is provided with an upper shielding plate and the other is provided with a lower shielding plate .

And a filter medium is provided between the pair of filters.

And at least one of the plurality of multi-stage filter units is provided with a filter having meshes of different sizes so that the foreign substances included in the storm can be filtered according to the size.

The discharge portion is positioned lower than the inlet portion, and the oil water separator is positioned between the inlet portion and the outlet portion.

The present invention has the following various effects.

First, the present invention can automatically cope with heavy rainfall and continuous rainfall by automatically adjusting the amount of incoming rainfall.

Second, the present invention has excellent purification effect by finely separating oil, contaminants and sediments contained in rainwater through various stages.

Third, the present invention prevents excessive inflow of rainwater, thereby preventing reverse flow of rainwater flowing into the inside of the apparatus.

Fourth, the present invention can prevent internal pollution due to residual water since no residual water is generated after rainfall.

Fifth, the present invention is capable of simultaneously using a plurality of filter media according to the characteristics of storm, and thus has excellent purification effect.

Sixth, the present invention maximizes the purifying effect by preventing the reflux of the impurities and sediments.

Seventh, the present invention maximizes the contact of the contaminants and sediments with the filter, thereby increasing the lifetime of the filter.

1 is a view showing a conventional non-point pollutant treatment apparatus disclosed in Korean Patent No. 10-1353039,
FIG. 2 is a configuration diagram of a non-point pollutant reduction apparatus according to the present invention;
3 is a perspective view showing a state in which the apparatus for reducing nonpoint pollutants according to the present invention is in operation,
4 is a perspective view illustrating a water level control unit according to the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, and the same reference numerals are given to the background art and the constituent elements of the constitution which have already been described.

The description of the non-point pollutant abatement apparatus of the present invention described below is a preferred embodiment of the present invention, and it is not limited to the embodiment but can be implemented in various forms.

The non-point pollutant abatement apparatus according to the present invention is a device for purifying pollutants such as soil, particulate solid matter, impurities, oil, etc. contained in rainwater generated at the time of initial storm to prevent them from being discharged to the rivers or the sea.

The initial storm described in the present invention means a case where the rainfall amount is 5 mm or less, and when the rainfall amount exceeds 5 mm, the rainwater does not flow into the non-point pollutant reduction apparatus. At this time, the criteria for rainfall is for understanding purposes and may vary depending on the situation.

FIG. 2 and FIG. 3 are views showing a configuration of the apparatus for reducing nonpoint pollutants according to the present invention and a state of operation thereof, and FIG. 3 shows the filter frame 720 after removing the filter frame 720.

2 and 3, the apparatus for reducing nonpoint pollutants according to an embodiment of the present invention includes a treatment tank 100, an inflow unit 160, a water level control unit 200, a collecting unit 300, The water flow separating unit 400, the guide unit 500, the re-injuring prevention unit 600, the eddy flow forming unit 640, the multi-stage filter unit 700, the residual water rejection unit 800 and the discharging unit 900 do.

The treatment tank 100 is a place where the initial excellent stormwater is introduced and purified. The treatment tank 100 is partitioned into a first space 110 and a second space 120, that is, two spaces by the partition wall 150, One side of the space 110 is formed with an inflow portion 160 through which the rainwater flows.

In this embodiment, the inlet 160 is formed using a tube, but the shape and the type of the inlet 160 are not limited as far as the storm can be introduced.

The water level adjusting unit 200 shields the inflow part 160 by blocking the inflow of the rainwater by the buoyancy according to the amount of the rainwater in the treatment tank 100. The inflow part 160 .

4, the water level regulating unit 200 includes a head unit 210 and a body 220. The head unit 210 is located on the upper surface of the collecting unit 300, The portion 220 is located inside the collecting portion 300, that is, at the end of the inflow portion 160.

The body 210 has an inlet hole 230 formed in the body 220 and having the same area as the end of the inlet 160. The body 220 is located in the collecting part 300 so that the end of the inlet 160 and the inlet hole 230 are in line with each other as shown in FIG. The rainwater is introduced into the treatment tank 100 through the inlet and the inlet hole 230.

If a certain amount or more of rainwater flows into the treatment tank 100 due to heavy rains or continuous rainfall and the water level of the rainwater exceeds the height of the inflow unit 160, And the inflow hole 230 of the body 220 is positioned higher than the end of the inflow part 160. [

By this process, the flow of the rainwater flowing through the inflow section 160 is blocked, and the rainwater which has been purified in the treatment tank 100 is discharged through the discharge section 900 to be described later, 160, the water level regulating unit 200 is lowered and the inflow of the storm begins again.

The collecting unit 300 selectively collects suspended solids to prevent the suspended solids contained in the storm introduced through the inflow unit 160 from being dispersed in the entirety of the first space 110, And communicates with the inflow portion 160.

In this embodiment, the inlet portion 160 is positioned inside the collecting portion 300, and the collecting portion 300 is formed in an "L" shape to facilitate collecting the collected suspended matters, One side, the side was formed by perforated net, and the bottom was opened. The holes formed in the side surface of the collecting unit 300 may be classified into various meshes according to the size of the suspended particles. The meshes described below generally indicate the number of meshes between 1 inch, But the dictionary meaning is similar) can be applied.

When the nonpoint pollutant abatement apparatus is in use, the uniformity of the treatment vessel 100 is always maintained to a certain level. Therefore, the rainwater flowing through the inflow section 160 flows through the side surface and bottom surface of the collecting section 300, The suspended solids float in the collecting part 300 without being precipitated by the density difference.

That is, the suspended solids flowing into the collecting part 300 are not dispersed along the storm but remain in the collecting part 300 only. The collected suspended matters can be collected by separating the collecting part 300 or by opening one side of the collecting part 300 as needed.

The oil water separating unit 400 separates the rainwater flowing into the first space 110 and the oil contained in the rainwater through the collecting unit 300 by the difference in specific gravity, 1 space 110 and the second space 120 and the end portion located in the first space 110 is positioned lower than the inflow portion 160 into which the rainwater flows.

That is, the water level of the first space 110 is maintained by the height of the inlet 160, and the end of the oil water separator 400, which communicates the first space 110 and the second space 120, The rainwater passing through the collecting part 300 flows into the second space 120 through the flow path of the oil water separating part 400 and the oil flows into the second space 120 due to the difference in specific gravity, (120), and floats on the surface of the first space (110).

A separate oil adsorption filter may be further provided on one side of the oil water separator 400 to remove floating oil.

The guiding part 500 selectively passes only the rainwater except for the heavy rainwater that has flowed into the second space 120 through the oil water separating part 400 and guides the contaminants to the side of the partitioning wall 150, And is formed at one side of the other end of the oil water separator 400 located in the second space 120. [

The holes formed in the guide part 500 can be applied with various meshes depending on the size of the impurities and the impurities which have not passed through the guide part 500 are guided to the side of the partition wall 150, And the storm that has passed through the guide portion 500 is mostly filtered out of the contaminants.

Also, the rainwater flowing into the second space 120 through the oil water separator 400 is resisted by the guide part 500, and the flow rate of the rainwater is reduced.

The inspection unit 180 may be provided on the upper side of the guide unit 500 to check the condition of the guide unit 500 and the accumulation state of the contaminants deposited in the deposition space 630, A separate inspection window or a door that can be opened and closed can be provided.

The re-float prevention part 600 prevents the contaminants settling along the guide part 500 from being reflowed by the flow of the storm surge so as to continuously flow, and is formed so as to protrude upward from the bottom surface of the second space 120 And an inclined wall 620 bent toward the guide part 500 from the upper end of the vertical wall 610. [

A sedimentation space 630 is formed between the partition wall 150 and the vertical wall 610 to precipitate contaminants falling along the guide part 500 and the sediment can not be moved further by the vertical wall 610 And is not re-lifted by the inclined wall 620.

The vortex forming portion 640 forms a vortex in the inflow into the settling space 630 to prevent the contaminants floating by the flow of the rain from flowing over the vertical wall 610 and the inclined wall 620 .

The vortex forming portion 640 may be curved from at least one of the bottom surface of the second space 120 and the partition wall 150 or between the bottom surface of the second space 120 and the vertical wall 610 .

That is, the vortex forming part 640 may be formed on either side of the bottom surface between the partition wall 150 and the vertical wall 610, or may be formed on both sides. The vortices formed along the guide portion 500 by the vortex forming portion 640 form a vortex in one direction and the vortex is formed only inside the settling space 630 by the inclined wall 620.

The thus formed vortex causes the contaminants that have floated in accordance with the flow of the outflow to not pass over the inclined wall 620 and remain only in the settling space 630.

The multi-stage filter unit 700 is provided to more precisely filter fine contaminants contained in the rain that have passed through the guide unit 500 and the re-injury prevention unit 600. The multi-stage filter unit 700 includes a re- The first space 120 and the second space 900 are spaced apart from each other by a predetermined distance.

The multi-stage filter unit 700 includes a pair of filters 710 and a filter frame 720, which are spaced apart from each other with a predetermined space therebetween and formed of a perforated network, and a filter frame 720 for attaching and detaching the filter 710 .

That is, a plurality of the multi-stage filter units 700 including the pair of filters 710 and the filter frame 720 are spaced apart from each other by a predetermined distance on the bottom surface of the second space 120.

The holes formed in the filter 710 can be applied with various meshes depending on the size of the fine contaminants remaining in the outermost layer and it is preferable to apply a mesh larger than the mesh of the guide part 500 to maximize the filtering effect. will be.

A filter medium 730 is provided between the pair of filters 710 to maximize the purifying effect of the storm. In addition, the filter medium 730 may include a plurality of or a plurality of filter media 730 of various kinds depending on the characteristics of the storm.

At least one of the pair of filters 710 may be provided with a shielding plate 750 for shielding the upper half or lower half of the filter 710. The shielding plate 750 may shield the excellent It is filtered while moving up and down.

That is, the shielding plate 750 includes an upper shielding plate 760 shielding the upper half of the filter 710 and a lower shielding plate 770 shielding the lower half, 760 and the lower shielding plate 770, it is preferable that the number of the shielding plates 750 installed per filter 710 does not exceed one.

In order to increase the path through which the storm moves between the pair of filters 710, that is, inside the filter material 730, the pair of filters 710 are provided with an upper shielding plate 760 And a lower shielding plate 770 is provided on the other side.

When a plurality of the multi-stage filter units 700 each including the upper shielding plate 760 and the lower shielding plate 770 are disposed apart from each other, the filters 710 facing each other to continuously move upward and downward It is preferable to provide another type of shielding plate 750.

The first filter 710 is not provided with the shielding plate 750 and the second filter 710 is provided with the lower shielding plate 770 in order to smoothly introduce the rainwater. So that different kinds of shielding plates 750 can be provided. Such a structure may be variously changed depending on the situation, and it may be possible to dispose the shielding plate 750 discontinuously.

The plurality of multi-stage filter units 700 are spaced apart from each other. The fine contaminants filtered by the filter 710 are settled as a space formed between the multi-stage filter units 700 facing each other.

One or more filter frames 720 are provided on both sides of the treatment tank 100 in the height direction and are firmly supported by inserting the filter 710 between the filter frames 720 facing each other. Further, since the filter 710 can be attached and detached by the filter frame 720, it is also possible to separate and clean and replace the filter 710 as necessary if the filter 710 is adhered to the filter 710 to reduce the filtering effect .

Since the filter medium 730 is provided between the pair of filters 710, the filter medium 730 is detachable from the filter 710 and can be separated and replaced as necessary as the filter 710.

In addition, in order to maximize the filtering effect by filtering in order of size of the contaminants, it is preferable that at least one of the plurality of multi-stage filter units 700 provided separately includes a filter 710 having another mesh.

That is, a pair of filters 710 closest to the re-injury prevention part 600 in the closest order (it is also possible to bundle the pairs of filters 710 to have the same mesh, and to have different meshes for each filter 710). A small mesh and a larger mesh toward the rear end will be sequentially filtered in the order of a large size contaminant to a small size contaminant in accordance with the flow direction of the outflow.

The residual handmade rejection 800 is for moving the remnant remaining in the treatment tank 100 after the process of purifying the rainwater through the nonpoint pollutant abatement device is finished and finally discharging the treated water out of the treatment tank 100 The first space 110, and the second space 120, respectively.

The residual water remover 800 provided in the first space 110 draws up the rainwater remaining in the first space 110 to the oil water separator 400 and flows into the second space 120, The residual remnant rejection 800 provided in the space 120 pulls the remnant remaining in the second space 120 to the discharging unit 900 to be described later and discharges it to the outside of the processing tank 100.

A motor, a pump, a cylinder, a pipe, and the like may be applied to the remanufactured remover 800.

The discharge unit 900 is provided at the rear end side of the second space 120 so that the stormwater that has passed through the plurality of the multi-stage filter units 700 can be discharged to the outside of the treatment tank 100, Can be applied.

The discharging unit 900 guides the discharge of the rainwater to the outside of the treatment tank 100 automatically by using an appropriate water level instead of using a physical force. It is preferable to be positioned lower than the above-mentioned inflow portion 160 for improving the performance.

The oil water separator 400 is positioned between the height of the inlet 160 and the height of the outlet 900 so that the height of the oil introduced into the inlet 160 can be easily adjusted 400 and the discharging portion 900 of the first embodiment.

If the height of the inflow section 160 and the discharge section 900 are not considered, the phenomenon that the outflow does not flow or the back flow occurs may occur.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention.

100: Treatment tank 110: First space
120: second space 150: partition wall
160: Inflow section 180: Inspection section
200: water level control unit 300:
400: Oil water separator 500: Guide part
600: Re-injury prevention part 640: Vortex formation part
700: Multi-stage filter unit 800:
900:

Claims (5)

A treatment tank partitioned by the partition wall into a first space and a second space;
An inflow part formed at one side of the first space so that the storm can be introduced into the treatment tank;
A water level adjusting unit provided in the inflow section to block the inflow of rainwater by moving up and down by buoyancy according to the amount of rainwater in the treatment tank;
A collecting part communicating with the inflow part and having at least a side surface formed as a perforated network for collecting suspended solids flowing through the inflow part;
Wherein the first space is communicated with the first space and the end located in the first space is located lower than the inlet so that the rainwater and the oil are separated by the specific gravity;
A guide portion provided at one side of the other end of the oil water separating portion located in the second space, the guide portion passing the inflowing outflow and guiding the contaminants contained in the rainwater to the partition wall side;
A vertical wall protruding upward from a bottom surface of the second space to provide a settling space of a contaminant settled along the guide portion; and a second wall extending from the upper end of the vertical wall toward the guide portion to prevent re- A re-injury prevention portion including an inclined wall;
At least one of at least one of a bottom surface of the second space and a partition wall or a bottom surface of the second space and a vertical wall is rounded to form a vortex in the inflowing rainwater;
A plurality of multi-stage filter units arranged at a predetermined interval on the bottom surface of the second space to filter foreign substances contained in the storm;
A remaining space provided below the first space and the second space to move the remaining water; And
And a discharge unit provided at the second spatial end to discharge the storm that has passed through the plurality of multi-stage filter units to the outside,
Wherein the multi-stage filter unit includes a pair of filters disposed facing each other and spaced apart from each other and having a predetermined space therein, and a filter frame for detaching the filter,
Wherein at least one of the pair of filters is provided with a shielding plate for shielding the upper half or lower half so that the storm that passes through the pair of filters can be filtered while moving up and down.
The method according to claim 1,
Wherein the shield plate includes an upper shield plate shielding the upper half of the filter and a lower shield plate shielding the lower half,
Wherein one of the pair of filters is provided with an upper shielding plate and the other is provided with a lower shielding plate.
The method according to claim 1,
Characterized in that a filter medium is provided between the pair of filters.
The method according to claim 1,
Wherein at least one of the plurality of multi-stage filter units is provided with a filter having meshes of different sizes so that the foreign substances included in the storm can be filtered according to the sizes thereof.
The method according to claim 1,
Wherein the discharging portion is located lower than the inflow portion,
Wherein the oil water separator is located between the height of the inlet and the height of the outlet.

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