KR101195091B1 - Non-point Source Control Facility - Google Patents

Abstract

The present invention relates to a non-point source reduction facility, and more particularly, an underground penetration-type nonpoint source reduction facility that prevents groundwater exhaustion by filtering the initial stormwater flowing into the manhole and draining the filtered stormwater in the ground. It is about.
The above-mentioned underground penetration non-point source reduction facility of the present invention includes a manhole (10) having an inlet (11) through which rainwater is introduced and a rainwater outlet (12) at a position lower than the inlet (11);
Dividing the inner space of the manhole (10) up and down at a position lower than the outlet 12 and the diaphragm (20) having an infiltration reservoir 40 in the lower portion;
A settling tank 21 recessed to one side of the diaphragm 20 to precipitate the contaminants contained in the rainwater;
A penetration water induction pipe 22 protruding upward from the other side of the diaphragm 20;
A central bottom is connected to the upper end of the infiltration water induction pipe 22, and has a plurality of backflow pipes 31 for introducing water from the bottom to the upper part in the circumferential bottom, and a counter flow with the lid 34 coupled to the top. Induction barrel 30;
And a plurality of permeable holes 41 formed through the bottom of the penetrating water reservoir 40.

Description

Ground penetration type non-point source reduction facility {Non-point Source Control Facility}

The present invention relates to a non-point source reduction facility, and more particularly, an underground penetration-type nonpoint source reduction facility that prevents groundwater exhaustion by filtering the initial stormwater flowing into the manhole and draining the filtered stormwater in the ground. It is about.

In general, there are non-point source reduction facilities to reduce the load of rainwater treatment facilities and to prevent water pollution by purifying the initial excellent water and draining it.

That is, when the initial rainwater containing a large amount of pollutant is collected and introduced into the manhole equipped with the purification device, the pollutant is first filtered through the sedimentation and filter functions inside the manhole and then drained to the stormwater treatment facility or directly to the river. By reducing the load of rainwater treatment facilities, water pollution caused by rainwater that is directly drained to rivers is to be reduced.

Representative pollutants included in the early rainfall include pesticides and organics from agricultural fields such as fields and rice fields, and pollutants such as tire dusts and automobile lubricants and fuels on road surfaces, which reduce non-point sources that filter these pollutants. Facility is introduced in Patent Registration No. 10-0937580, as shown in Figure 1a, the inlet opening 52 formed to be inserted and fixed to the inlet pipe on one side of the outer upper end, relative to the height of the inlet opening 52 It is formed below, and has a discharge opening 53 formed to be inserted and fixed to the discharge pipe on the other side of the outer upper end, and the engaging belt 54 formed to protrude in an annular shape along the lower inner wall of the discharge opening 53, A catchment rain gutter 50 having a predetermined shape embedded in the ground at a predetermined width and depth; It is seated and fixed on the upper part of the catching belt 54 formed inside the catchment rain gutter 50, and oil residue or floating foreign matter contained in the contaminated water collected inside the catchment rain gutter 50 is not directly discharged to the outside. Separating plate 55 to separate the surface of the contaminated water by using the specific gravity of the oil, and to discharge the purified water from which the oil residue or floating foreign matter is separated from the catchment rain gutter 50 through the discharge opening 53, The separation plate 55 includes an inflow passage 57 formed to collect contaminated water introduced from the inflow opening 52; A contaminated water inflow pipe 57a inserted into and fixed in the inflow passage 57 and extending to a predetermined position in the collection manhole 50; It is formed while maintaining a predetermined interval on the outer circumferential surface of the inlet passage (57), if the contaminated water flowing through the inlet passage (57) does not exceed the catchment manhole (50) contaminated water path A partition wall 56 facing the inlet pipe 57a and directly discharging the contaminated water introduced only when the contaminated water exceeds the water collecting manhole 50 to the discharge opening 53; A discharge passage 58 formed to discharge water from which an oil component is separated at the lower end of the discharge opening 53; A purified water discharge pipe 58a inserted and fixed in the discharge passage 58 and extending to a predetermined position in the collection manhole 50; A cleaning tool 59 formed at a predetermined position of the separating plate 55; A cleaning discharge pipe 59a inserted into and fixed in the cleaning hole 59 and extending in the upper direction of the collecting manhole 50 to suck oil debris or floating foreign matter gathered at the lower part of the separating plate 55; And there is an oil-water separator comprising an upper cap 44 (c) is inserted into the upper end of the cleaning discharge pipe (59a).

By this structure, when the initial pollution rainwater flows into the inflow opening 52, the water flows up when the water flows into the water collecting manhole 50 through the contaminant inflow pipe 57a and the water level rises. To form a layer above the bottom of the contaminated water inlet pipe (57a) or the purified water discharge pipe (58a), drained to the discharge pipe through the rainwater purified water discharge pipe (58a) in the bottom and the middle of the oil layer and sediment sink It is to be possible.

However, in the oil-water separator as described above, the oil layer floating in the upper part of the contaminated water flows into the upper part of the contaminated water by the specific gravity difference, so the oil layer is also lowered when the water level decreases. While the drainage to the discharge pipe through the purified water discharge pipe (58a) will occur, which is repeated every rainfall and eventually filtered oil contaminants are continuously discharged, there is a problem that the overall excellent purification function of the purification is reduced.

In addition, although the upper manhole cover is shown as a structure that does not allow the inflow of rainwater, in the case of the manhole cover structure that allows the inflow of rainwater, a large amount of initial pollution rain is introduced through this, so that it is purified through a normal route. Since the discharged rainwater is discharged mixed with the rainwater discharged into the initial manhole cover, there is a problem that the initial excellent purification function is lowered.

In addition, according to Utility Model Registration No. 20-0361427, as shown in Figure 1b has a hollow structure inside the inside of the sewage pipe with only the upper surface having a cover 61 is embedded to expose, the inside of the hollow up and down 2 is provided with a separation wall 66 for separating and partitioning the first and second accommodation chambers 64a and 64b, and the inlet and drainage pipe 62 for contacting the first accommodation chamber 64a and the sewer pipe on the wall. A manhole body 60 each having 63 installed thereon; It has a plurality of holes 671 on the outer circumferential surface so that one end is formed into a cylindrical shape having an open length so that the open end faces the first accommodation chamber 64a and the length is located in the second accommodation chamber 64b. It is installed in the partition wall 66 adjacent to the water inlet pipe 62 and vortex the rainwater having contaminants flowing into the second storage chamber 64b through the first storage chamber 64a to contaminate the pollutants by boiling point. Excellent eddy tube 21 separated; And an excellent induction pipe 68 formed around the periphery to form a 'I' shape having a cylindrical perforated tube having both ends opened and annular perforated plates installed at outer peripheries of both ends of the perforated tube. It is installed in the separation wall 66 adjacent to the drain pipe 63 so as to be located in the second accommodation chamber 64b, and is discharged from the second accommodation chamber 64b through the rainwater guide pipe 68 to the drain pipe 63. There is a storm water treatment apparatus including a screen 681 to filter the rainwater separated from the pollutants and to balance the storm water inflow and outflow to the second storage chamber (64b).

The contaminants contained in the rainwater by the above structure has a structure that drains only the rainwater that has been purified by preventing it from being discharged to the outside due to sedimentation or specific gravity difference, but this also floats when the rainfall stops and the water level is lowered. As the oil layer is lowered and rainwater is introduced again due to rainfall, the oil level is increased along with the water level, which is discharged into the drain pipe 63 through the rainwater induction pipe 68. It will be repeated, eventually causing the pollutant purification function to be halved.

In addition, although the structure of the manhole cover 61 is shown as not the structure to inflow rainwater, if the flowing water flows into the manhole cover 61, the contaminated initial rainwater is purified and drained off to the rainwater to pollute Phenomenon occurs.

In addition, Utility Model Registration No. 20-0343186 is provided with two tanks, the rainwater is introduced into one tank, and the contaminants are first settled and overflowed by passing the median filling tank after the second settling into the neighboring tank. Introduces a road drainage treatment system to filter and discharge.

However, the structure is focused on the method of purifying rainwater by sedimentation in two tanks. Of course, although it has a structure that is filtered and then drained by the filter medium of the filter medium, this is a structure that purifies the rainwater by a simple strainer, as well as the filtration function is reduced and there is a disadvantage that can not filter out the contaminants of the oil component.

In addition, Patent Registration No. 10-0905693 is a good initial filtration method by filter paper, but may be a good filtration function of particulate contaminants, but there is a problem that the contaminants block the small pores of the filter paper to lose the water passage function. In order to solve this problem, there is a problem of frequent maintenance work for filter paper replacement. In addition, due to additional devices such as electrolytic device filter paper, the structure is complicated, it is a structure that is not suitable to treat a large amount of rainwater.

In addition, the four prior inventions may be able to reduce the load of rainwater treatment facilities or reduce the pollution of the streams by filtering the contaminants because the four prior inventions filter the pollutant from the initial rainwater and then drain it through the drainage facility. Many stormwaters are drained rapidly into rivers, rather than underground, and contain negative dysfunctional factors that promote groundwater depletion.

KR 10-0937580 B1 KR 20-0361427 Y1 KR 20-0343186 Y1 KR 10-0905693 B1

The present invention has been made to solve the above-mentioned conventional problems, the object of which is to significantly improve the filtering function of contaminants such as lubricating oil contained in the initial excellent water, and to infiltrate the purified rainwater into the ground to drain the natural By providing a natural environment-friendly non-point source reduction facility that prevents groundwater depletion.

In addition, another object of the present invention is to separate the contaminants of oil components such as lubricating oil by specific gravity and then adsorb them to prevent partial drainage due to the rise and fall of the water level and to adsorb the contaminants of oil components. It is to provide a non-point source reduction facility that enables easy and quick maintenance work such as installation and replacement of adsorption members.

According to an aspect of the present invention,

In the manhole provided with rainwater inlet and rainwater outlet in a lower position than the inlet,

Dividing the inner space of the manhole up and down at a position lower than the discharge port having a permeation reservoir in the lower portion;

A settling tank recessed to one side of the diaphragm to precipitate the contaminants contained in the rainwater;

An infiltration water induction pipe protruding upward from the other side of the diaphragm;

A central bottom is connected to the upper end of the infiltration water induction pipe, and has a plurality of backflow pipes for introducing water from the lower part to the upper part in the circumferential bottom part;

It is characterized in that a plurality of permeation holes formed through the bottom of the penetration reservoir.

In addition, it characterized in that the filter member is provided on the bottom of the penetration reservoir chamber and the perforation hole.

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In addition, the bottom of the backflow induction pipe lowers than the top of the infiltration water induction pipe to form a precipitation chamber, and the countercurrent pipe formed on the bottom of the precipitation chamber is formed to be inclined clockwise or counterclockwise so that the water flowing back flows. It is characterized by one.

In addition, it characterized in that the net is installed between the inner wall of the precipitation chamber and the top of the infiltration water induction pipe.

In the present invention, the underground infiltration type non-point source reduction facility, when the incoming rainwater level rises, precipitates pollutants in the sedimentation tank, and the first purified rainwater flows into the backflow duct through the backflow pipe, and then through the infiltration water duct. The groundwater drainage phenomenon can be prevented by supplying water to the infiltration water reservoir at the bottom of the diaphragm and penetrating into the ground through the water hole in the bottom.

In addition, since the contaminant is filtered through the filter member installed at the bottom or filled in the perforated hole when it enters the infiltration water reservoir and is drained to the ground through the perforated hole, the water drainage is further purified and drained to prevent underground water pollution. can do.

In addition, since the filter member installed at the bottom of the permeate reservoir and filled in the perforation hole is replaceable, there is an advantage of further improving the purification efficiency.

In addition, rainwater flowing back through the backflow pipe is rotated inside the backflow induction pipe due to the inclination of the backflow pipe. Therefore, pollutants contained in the rainwater are centrifuged and moved to the outside of the backflow induction pipe. There is an advantage that the function is further improved.

Figure 1a, 1b is a structural diagram of a non-point source reduction facility according to the prior art.
Figure 2 is an exploded perspective view showing the structure of the non-point source reduction facility according to the present invention.
Figure 3 is a cross-sectional perspective view showing the structure of the non-point source reduction facility of the present invention.
Figure 4 is a cross-sectional view showing the structure of the non-point source reduction facility of the present invention.
Figure 5 is an enlarged view of the main portion of the non-point source reduction facility of the present invention
Figure 6 is another embodiment of the present non-point source reduction facility.
Figure 7 is one embodiment of the backflow induction of the non-point source reduction facility of the present invention.
FIG. 8 is a plan view of the counter flow guide of FIG. 7; FIG.

The ground penetration type non-point source reduction facility of the present invention has a manhole (10) having an inlet (11) through which rainwater enters and a rainwater outlet (12) at a lower position than the inlet (11) as shown in FIGS. In the lower part, the inner space of the manhole 10 is divided up and down at a position lower than the outlet 12, and a diaphragm 20 having a penetrating water reservoir 40 is installed at a lower portion thereof. The diaphragm 20 forms a sedimentation tank 21 recessed downward on one side to precipitate contaminants contained in the rainwater, and the other side constitutes a penetration water induction pipe 22 protruding upward. In addition, in installing the diaphragm 20 in the manhole 10, the edge is raised and bolted to the inner wall surface of the manhole 10, or as shown in FIGS. 3 and 5, the upper and lower bodies 10a of the manhole 10. It is possible to adopt a method of biting the edge of the diaphragm (20) between the (10b), or not shown in the drawing to form a flange around the inner wall of the manhole (10) to be seated and installed It may have a structure.

A reverse flow guide tube 30 is installed at an upper end of the infiltration water guide tube 22, and the reverse flow guide tube 30 has a central bottom connected to the upper end of the penetrating water guide tube 22, and a lower portion of the counter flow guide tube 22 is disposed at an upper portion thereof. Install a plurality of backflow pipes (31) for introducing water into the water, and the upper part is covered with a lid (34) to block the direct inflow of polluted rainwater, and to open and collect the pollutants to the outside, such as maintenance work. To be able to do this.

In addition, when the concentration of contaminants in the inflow rainwater is severe in the lower portion of the backflow pipe 31 is provided with a backflow blocking plug 44 to be inserted into the backflow pipe 31 and blocked as shown in FIGS. This is because when the civil works are carried out in the vicinity of the non-point source reduction facility, a lot of soil may be introduced in rainy weather. When this soil flows into the infiltration reservoir 40, frequent maintenance work must be followed. 31) it is necessary to block the inflow of rainwater for a while until the stopper 44 is inserted to reduce the amount of contaminants.

In addition, the inside of the permeate water induction pipe is installed through the backflow pipe 31, as shown in Figure 5 to install a strainer 45 for filtering the contaminants contained in the rainwater to move to the infiltration water reservoir 40. A fine contaminant may be installed by installing a filter member inside the sludge filter box 45. In addition, the filter box 45 is smaller than the inner diameter of the penetrating water induction pipe 22, when contaminants accumulate and the water permeability is lowered, overflows through the upper of the filter can 45, between the filter box 45 and the penetrating water induction pipe 22. Drained downward through the space.

In addition, a plurality of permeation holes 41 are formed at the bottom of the infiltration water reservoir 40 to be drained to the ground, and a filter member 42a is installed at the bottom of the infiltration water reservoir 40 and each water permeation hole 41 is formed. The filter member 42b is filled in the filter member to filter the rainwater discharged into the ground.

Such a structure is preferably formed of a metal or synthetic resin material having a corrosion protection function.

The underground penetration non-point source reduction facility of the present invention configured as described above, when rainwater flows through the inlet 11 (including a drain cover, a manhole cover or grating having a drainage hole), is stored in the upper portion of the diaphragm 20. The water level rises gradually. As the rainwater rises, some pollutants sink to the settling tank 21 due to the specific gravity difference, and the first purified rainwater flows into the backflow induction pipe 30 through the backflow pipe 31. At this time, when the water level rises to the upper portion of the backflow pipe 31, the lower end of the backflow pipe 31 is located in the water, so that contaminants (oil or suspended matter, etc.) floating on the water surface are not introduced. That is, it is filtered second.

Rainwater introduced into the backflow induction pipe 30 is moved again to the infiltration water reservoir 40 through the infiltration water induction pipe 22, at which time the contaminants are filtered through the filter barrel 45. Rainwater that has passed through the filter barrel 45 is stored in the infiltration water reservoir 40 and at the same time is drained into the ground through the perforation hole 41 of the bottom.

When the water is drained into the pitcher 41, the filter member 42a disposed at the bottom or the filter member 42b filled in the pitcher 41 is filtered in the fourth order, so that only purely purified water penetrates into the ground. If the amount of inflow water increases, the water level rises and overflows and drains through the outlet 12 formed in the manhole (100 itself) without going through the backflow pipe 31 or the backflow guide passage 30. At this time, Since most of the pollutants included are filtered, there is no risk of water pollution even if flowing directly into the stream, and it does not put a load on stormwater treatment facilities.

In addition, the filter members 42a and 42b filled in the bottom of the penetrating water storage chamber 40 or the permeation hole 41 extend the replacement cycle because the rainwater in which most of the contaminants are filtered by the filter barrel 45 passes. It is expected that no impediment to permeability will occur.

When the filter members 42a and 42b are contaminated, the lid 34 of the upper portion of the counter flow induction pipe 30 may be opened and replaced through the space of the infiltration water induction pipe 22.

In addition, the bottom of the manhole 10 is laid with sand or gravel to form a permeable layer so that the rainwater penetrated slowly soaked into drainage.

6 to 8, the bottom of the backflow induction pipe 30 is lowered than the top of the infiltration water induction pipe 22 to form a precipitation chamber 32, and formed at the bottom of the precipitation chamber 32. The back flow pipe 31 'is formed to be inclined clockwise or counterclockwise. At this time, the upper end of the backflow pipe (31 ') may be connected to the same height as the bottom surface of the precipitation chamber 32, but preferably placed higher than the bottom surface of the precipitation chamber (32).

Due to this structure, the rainwater flowing back to the backflow pipe 31 'has a direction by the direction of the backflow pipe 31', so that the infiltration water induction pipe 22 rotates as shown in FIG. Flows into.

As the rainwater rotates inside the counter flow-through tube 30 as described above, the contaminants contained in the rainwater are centrifuged and precipitated while being directed to the edge of the precipitation chamber 32. In addition, the rainwater in which the contaminants are precipitated is moved to the infiltration water reservoir 40 in the lower portion through the infiltration water induction pipe 22 in the center. In addition, a network 33 is installed between the inner wall of the settling chamber 32 and the top of the infiltration water inlet pipe 22 to ensure the isolation of the centrifuged contaminants. To prevent ingress).

10: manhole 11: inlet 12: outlet
20: plate 21: sedimentation tank 22: infiltration water induction pipe
30: counter flow guide 31,31 ': counter flow pipe 32: sedimentation chamber
33: network 34: lid 40: infiltration water reservoir
41: pitcher 42a, 42b: filter member 44: plug
45: manure

Claims (7)

In the manhole (10) having the rainwater inlet 11 and the rainwater outlet 12 in a lower position than the inlet 11;
Dividing the inner space of the manhole (10) up and down at a position lower than the outlet 12 and the diaphragm (20) having a permeation reservoir 40 in the lower portion;
A settling tank 21 recessed to one side of the diaphragm 20 to precipitate the contaminants contained in the rainwater;
A penetration water induction pipe 22 protruding upward from the other side of the diaphragm 20;
A central bottom is connected to the upper end of the infiltration water induction pipe 22, and has a plurality of backflow pipes 31 for introducing water from the bottom to the upper part in the circumferential bottom, and a counter flow with the lid 34 coupled to the top. Induction barrel 30;
Ground penetration type non-point source reduction facility, characterized in that configured; a plurality of penetrating holes (41) formed through the bottom of the penetrating water reservoir (40).

The underground penetration type non-point source reduction facility according to claim 1, wherein a filter member (42a) is provided at the bottom of the permeation reservoir.

According to claim 1, characterized in that the back flow blocking plug 44 is provided in the lower portion of the back flow pipe 31 to block the plug 44 in the back flow pipe 31 when the concentration of contaminants in the inflow rainwater is severe. Underground infiltration type nonpoint source reduction facility. The underground penetration type non-point source reduction facility according to claim 1, wherein a sludge manure container (45) is provided inside the infiltration water induction pipe. According to claim 1, wherein the bottom of the counter flow induction pipe 30 is lowered than the upper end of the infiltration water induction pipe 22 to form a precipitation chamber 32,
Ground penetration type non-point source reduction facility, characterized in that the counter flow pipe (31 ') formed on the bottom of the precipitation chamber 32 inclined clockwise or counterclockwise to rotate the water flowing back

The underground penetration type non-point source reduction facility according to claim 5, wherein a net (33) is provided between the inner wall of the precipitation chamber (32) and the upper end of the infiltration water induction pipe (22).

The ground penetration type non-point source reduction facility according to claim 1, wherein the edge of the diaphragm (20) is clamped between the upper and lower bodies (10a, 10b) of the manhole (10).

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