KR101207293B1 - Water Treatment Facility for Underground Infiltration of Early Rainwater - Google Patents

Abstract

The present invention relates to a facility for inducing the underground penetration of rainwater and to treat the rainwater, the underground penetration treatment facility of the present invention is a non-woven fabric applied to a constant thickness on the ground, front, back and left and right after digging a certain area. A layer; A sand layer laminated on the nonwoven fabric layer and filtering contaminants; A crushed stone layer laminated on the sand layer and having rainwater penetrating therein; A non-woven fabric layer laminated on the crushed stone layer upper surface; An outlet perforated pipe installed on an upper surface of the sand layer and provided inside the crushed stone layer to inject the rainwater flowing from the crushed stone layer into the manhole; It consists of an inflow oil pipe to discharge rainwater from the initial excellent treatment facility to discharge rainwater to the crushed rock layer and a discharge pipe to discharge the rainwater from the manhole. The technical feature is that it is configured to induce underground penetration by filtering contaminants such as impurities again.
Accordingly, the present invention removes contaminants and fine contaminants in the initial rainwater and re-filters impurities that have not been removed, thereby inducing underground penetration to secure groundwater resources by smoothly supplying groundwater.

Description

Water Treatment Facility for Underground Infiltration of Early Rainwater}

The present invention relates to a treatment facility for the initial excellent underground penetration, and more particularly, it is possible to secure groundwater resources by smoothly supplying groundwater by filtering the rainwater discharged from the initial excellent treatment facility to further penetrate underground. It is about an underground penetration treatment facility of the first excellent rain which there is.

As the city develops, the paving area of concrete, asphalt, etc., for building new buildings and securing roads increases, which reduces the permeable area where rainwater (water) can penetrate into the ground. As the water is rapidly reduced, groundwater is gradually being depleted, and the occurrence of browning water is also increasing, making it difficult to supply water, which in turn inhibits plant growth and adversely affects the river ecosystem.

On the other hand, the main pollutants that cause water pollution include factory wastewater, livestock waste water, domestic sewage, etc. These pollutants are called point sources because the sources and causes of pollutants are clear. On the other hand, pollutants such as buildings, roads, farmland, mountains, and construction sites in cities are scattered in various places, so pollutants that are difficult to identify their source and cause are called nonpoint sources.

Pollutants emitted from nonpoint sources are not only extensive in discharged areas but mostly remain on the surface of the earth, and are the main cause of water pollution by flowing into public waters such as rivers and groundwater.

Initial rainwater contains dust, sand, garbage, and pollutants in asphalt or concrete floors, and belongs to pollutants discharged from nonpoint sources, and is more polluted than general rainwater. The device is installed and used, and this initial excellent treatment device only removes contaminants, foreign substances, etc. included in the initial rainwater, and discharges the treated rainwater to a river, so that the groundwater is gradually being depleted. It is required to provide a facility for flowing the initial rainwater treated by the initial rainwater treatment device back to the groundwater.

The present invention has been made in response to the above-described demands, and an object thereof is to provide an initial excellent underground infiltration treatment facility that infiltrates underground after the initial excellent water discharged from the initial excellent treatment facility is filtered.

An object of the present invention as described above is a non-woven fabric layer is applied to a predetermined thickness on the ground layer excavated to a predetermined depth and the front, rear and left and right surfaces of the ground layer, respectively; A sand layer laminated on an upper surface of the nonwoven fabric layer to filter contaminants; A crushed stone layer which is stacked on the sand layer and has an excellent initial penetration; A non-woven fabric layer laminated on the crushed stone layer upper surface; An outlet hole pipe installed on an upper surface of the sand layer; An inflow perforated pipe installed in communication with the discharge pipe of the initial excellent treatment facility and a manhole installed at the end of the inflow perforated pipe and the outflow perforated pipe; It is achieved by configuring.

According to the present invention, by filtering the initial rainwater discharged from the initial rainwater treatment facility to induce underground infiltration, it is possible to facilitate the supply of groundwater, and in addition to improving the water quality of the groundwater by filtering the initial rainwater penetrated. have.

In addition, it is possible to precipitate and discharge foreign substances and sludge due to sedimentation, to improve the water quality of the downstream, and to prevent the phenomenon of backflow by clogging by allowing the filtration layer to be bypassed even if it is blocked by sludge or the like.

1 is a cross-sectional perspective view of an initial excellent underground penetration treatment facility according to an embodiment of the present invention,
2 is a cross-sectional view of the initial excellent treatment facility,
3 is a cross-sectional view of the swirl screen,
4 is a use state diagram showing an example of the use of the underground penetration treatment facility of the initial excellent rain in accordance with the present invention,
5 is a cross-sectional view taken along line AA ′ of FIG. 1;
FIG. 6 is a cross-sectional view taken along line BB ′ of FIG. 1.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention according to the preferred embodiment.

The present invention is located on the downstream side of the initial excellent treatment facility to re-filtration the initial rainwater that has already removed the contaminants and foreign matter by the initial excellent treatment facility to induce penetration into the basement, so that the initial rainwater that has not penetrated into the basement is discharged. In one embodiment, the underground permeation treatment facility 1 of the present invention includes a nonwoven fabric layer 30, a sand layer 10, a crushed stone layer 20, an outflow hole 200, and an inflow hole 100 as shown in FIG. , Manhole 300 and discharge pipe 320, the initial excellent treatment facility (1a) is the main body 500, the contaminant collecting unit 520, sedimentation tank 530, swirl screen 540, filtration tank 550 ) And the discharge pipe 560.

First, the initial excellent treatment facility 1a, which may be referred to as an initial excellent pretreatment device, will be described in detail with reference to FIGS. 2 and 3.

2 and 3 show a cross-sectional view of the initial excellent treatment facility and a cross-sectional view of the swirl screen of the initial excellent treatment facility, respectively.

The main body 500 is formed of a rectangular box, the inside of which is divided into a sedimentation tank 530 and a filtration tank 550 which will be described later, and a flow path is formed so as to pass through the sedimentation tank 530 and the filtration tank 550 thus divided. After the initial excellent water flows into the interior through the inlet pipe 510 provided on one side of the main body 500 passes through the settling tank 530 and the filtration tank 550, the discharge pipe 560 provided on the opposite side of the inlet pipe 510 It is discharged to the outside through. In addition, the bypass pipe 570 for directly supplying the initial excellent water supplied to the settling tank 530 or the filtration tank 560 may be included.

The trap collector 520 removes the floating traps and soluble traps in the initial excellent water flowing into the inside through the inlet pipe 510 of the main body 500.

The sedimentation tank 530 located on the downstream side of the contaminant collecting unit 520 is a water tank in which the initial excellent water passing through the contaminant collecting unit 520 is stored, and the surface of the initial excellent water stored in the sedimentation tank 530 is an inflow pipe 510. Due to the initial fluctuations caused by the initial rain flowing into the sedimentation tank 530 severely caused the sediment in the initial rainwater rises, the sedimentation of the sediment is not easy, according to the precipitation screen 540 to precipitate the sediment, sedimentation tank 530 It is carried out by installing more in the upper part in the inside.

Swirl screen 540 is a double vessel for passing the initial rain is removed from the sedimentation tank 530, the swirl screen 540 is to suppress the fluctuations of water to precipitate the sediment floating in the initial rain with a lot of fluctuation The sediment in the initial rainwater is discharged into the sedimentation tank 530, and the initial rainwater from which the sediment is removed is sent to the filtration tank 550.

The swirl screen 540 is implemented as a double container structure in which an inner container 542 having a relatively small outer diameter is inserted into the outer container 541, as shown in FIG. 3. A plurality of inlets 541A, 541B is provided at the periphery, and initial rainwater is introduced into the inner portion, and an inner surface of the inner container 542 is opened at its lower surface, and the initial water flows through the inlets 541A, 541B of the outer container 541. As rainwater enters the open portion of the bottom of the inner container 542, the water is configured to rise to the appropriate level. In addition, a flow passage tube 543 communicating with the inner container 542 to supply the initial excellent water into the filtration tank 550 and a sediment discharge hole 544 provided in the outer container 541 to discharge the precipitate into the settling tank 530 are included. Can be.

The filtration tank 550 is filtered while the initial rain introduced flows through the filtration tank 550 in order, and finally removes and removes the fine foreign material contaminants. The initial rainwater gradually passes from the bottom surface of the filtration tank 550. It is filtered as the water level rises.

The configuration of the filtration tank 550 includes a fluidized bed filter 551 provided at a lower portion of the filtration tank 550; A porous fine aggregate part 552 provided on the upper surface of the fluidized bed median part 551; It includes a fiber yarn filter unit 553 for adsorption filtration of the fine microcontaminants of the initial excellent passing through the porous fine aggregate portion 552.

The discharge pipe 560 discharges only the initial excellent water that has passed through the filtration tank 550 to the outside.

Next, the underground permeation treatment facility will be described.

Figure 4 of the accompanying drawings is a view showing a cross-sectional view of the underground permeation treatment facility according to an embodiment, Figures 5 and 6 show the cross-sectional views of A-A ', B-B' of FIG. The underground permeation treatment facility 1 of the present invention comprises a sand layer 10 and a crushed stone layer 20 which are sequentially stacked and a nonwoven fabric layer 30 surrounding the outside of the sand layer 10 and the crushed stone layer 20; Outflow oil pipe 200 and the inflow oil pipe 100 is provided therein, and the discharge hole 320 to discharge the manhole 300 and rainwater installed at the end of the outlet oil pipe 200 and the inflow oil pipe 100. It is composed.

This configuration is stacked on top of the ground layer, the ground layer 400 is formed by digging the ground layer to a certain depth and the like.

The ground layer 400 excavated to a predetermined depth and the non-woven fabric layer 30 having a predetermined thickness on the front, rear and left and right of the ground layer 400 is applied. The nonwoven layer 30 is located between the ground layer, the sand layer 10 and the crushed stone layer 20, and prevents the movement of the layers (sand layer, crushed stone layer) to restrain and stabilize the layers as a whole. It prevents the penetration of the soil, and conversely prevents the soil of the ground layer and the like to enter the sand layer and the crushed stone layer, and at the same time serves to filter the impurities and the like that can penetrate with the initial excellent.

The material constituting the nonwoven fabric layer 30 may be a commercialized material made of polyester.

Sand layer 10 laminated on the upper surface of the nonwoven fabric layer 30 is a single material such as irradiation (사) having a size between 2 ~ 0.2mm or fine yarn (細砂) having a size between 0.2 ~ 0.02mm or It may be made of a mixed material mixed these. The sand layer 10 forms pores by the sand particle layer to filter and remove suspended substances, impurities, and the like. The sand layer 10 filters and adsorbs and removes colloidal substances, suspended substances, surfactants, and the like, and reduces the chemical oxygen demand (COD). Satisfy.

The crushed stone layer 20 laminated on the top surface of the sand layer 10 may be made of a single material such as porous gravel, steel sand, and crushed stone or mixed materials mixed with them, and quickly absorbs the initial rainwater introduced. Have large voids.

In addition, the nonwoven fabric layer 30 is coated on the upper surface of the crushed stone layer 20 to prevent movement of the crushed stone layer 20 and to prevent foreign matters from entering the crushed stone layer 20.

The outflow oil hole 200 installed in contact with the upper surface of the sand layer 10 and installed inside the crushed stone layer 20 is a hole pipe having a plurality of inflow holes 210, and the crushed stone layer 20. The initial excellent water absorbed into the inlet 210 is discharged. The end end of the outflow hole 200 is in communication with the manhole (300).

The outflow hole 200 is installed on the upper surface of the sand layer 10 is provided in the interior of the crushed stone layer 20, the initial excellent rain that did not penetrate underground from among the initial rainwater that penetrates the crushed stone layer 20 Inflow and discharged to the manhole (300).

Since the pore size of the crushed stone layer 20 and the sand layer 10 is much smaller than the crushed stone layer 20, the initial excellent water flowing into the crushed stone layer 20 moves downward and moves to the sand layer 10. At the same time, the movement speed is significantly reduced. At this time, the outflow hole 200 is preferably installed on the upper surface of the sand layer 10 so that the initial excellent water that does not penetrate into the sand layer 10 can be discharged.

The inflow oil hole pipe 100 which communicates with the discharge pipe 560 of the initial excellent treatment facility 1a to introduce the initial excellent water and discharges the initial excellent water to the crushed stone layer 20 is a hole pipe having a plurality of outlet holes 110. (有 孔 管), and discharges the initial excellent water flowing into the crushed stone layer 20 through the outflow hole (110). The end end of the inflow hole tube 100 is in communication with the manhole 300, the end of the inflow hole tube 100 is bypassed by the initial excellent water introduced into the inflow hole tube 100 to the manhole 300 A closure 120 having a sphere 121 may be included.

The bypass port 121 is saturated when the crushed stone layer 20 and the sand layer 10 may contain the initial excellent or the crushed stone layer 20 and the sand layer 10 can not be filtered by suspended matter or impurities, etc. To discharge the initial excellent water introduced into the inlet hole 100 to the manhole 300 directly. That is, even if the filtration layer is blocked by sludge or the like, it is possible to prevent the phenomenon in which the initial excellent water flows back into the initial excellent water treatment apparatus 1a by the blockage. The size of the bypass port 121 may be configured to be adjustable.

The manhole 300 temporarily drains the initial excellent water discharged from the inflow oil hole 100 and the bypass port 121 to precipitate contaminants such as suspended matter and impurities by infiltration, and the discharge pipe provided in the manhole 300. Initial rainfall is discharged through 320.

The small surface of the crushed stone layer 20 and the manhole 300 may be provided with a plurality of small outlets 310 communicating with the crushed stone layer 20, the small outlet 310 of the crushed stone layer 20 Discharge the initial excellent saturation to the manhole (300).

Looking at the underground permeation process of the initial rainwater of the present invention configured as described above, in the initial rainwater treatment facility (1a) to remove the contaminants and fine contaminants in the initial rainwater inlet through the discharge pipe (560) As the initial rainwater is introduced, the initial rainwater flowing into the inflow hole 100 is penetrated into the crushed stone layer 20 through the outflow hole 110, and the initial rainwater that has penetrated into the crushed stone layer 20 is a sand layer by natural falling. Contaminants such as impurities are filtered and penetrated into the base while passing through the 10 and the nonwoven fabric layer 30.

The initial excellent water that did not penetrate in this process is introduced into the manhole 300 and discharged through the discharge pipe 320 of the manhole 300.

More specifically, the left and right sides of the underground penetration treatment facility 1 of the present invention are made by excavating the ground, and the ground penetration of the initial excellent rain can also be induced through the left and right sides.

According to the present invention, by filtering the initial rainwater discharged from the initial rainwater treatment facility to induce underground infiltration, it is possible to facilitate the supply of groundwater, and in addition to improving the water quality of the groundwater by filtering the initial rainwater penetrated. have.

In addition, it is possible to precipitate and discharge foreign substances and sludge due to sedimentation, to improve the water quality of the downstream, and to prevent the phenomenon of backflow by clogging by allowing the filtration layer to be bypassed even if it is blocked by sludge or the like.

1: underground penetration treatment facility 1a: initial excellent treatment facility
10: sand layer 20: crushed stone layer
30 nonwoven fabric layer 100 inflow hole
110: outlet hole 120: closed part
121: bypass port 200: outflow pipe
210: inlet 300: manhole
310: small amount outlet 320: discharge pipe
400: ground layer
500: main body 510: inlet pipe
520: trash collecting unit 530: sedimentation tank
540: swirl screen 541: outer container
542: inner container 543: flow path
544: sediment discharge hole 550: filtration tank
551: fluidized bed medium 552: porous fine aggregate portion
553: fiber yarn filter unit 560: discharge pipe
570: bypass pipe

Claims (7)

In the underground penetration treatment facility located on the downstream side of the initial excellent treatment facility (1a) to induce the underground excellent penetration of the initial excellent,
A ground layer 400 excavated to a predetermined depth and a non-woven fabric layer 30 applied to the front, rear, and left and right surfaces of the ground layer 400 at a predetermined thickness, respectively;
A sand layer 10 laminated on an upper surface of the nonwoven fabric layer 30 to filter contaminants;
A crushed stone layer 20 which is stacked on the sand layer 10 and has an excellent initial penetration;
A nonwoven layer 30 laminated on the upper surface of the crushed stone layer 20;
An outflow hole 200 installed on an upper surface of the sand layer 10;
Inflow oil pipe 100 is installed in communication with the discharge pipe 560 of the initial excellent treatment facility (1a) and
Consists of the manhole 300 is installed at the end of the inlet hole 100 and the outlet hole 200,
End portion of the inflow hole tube 100 is characterized in that the closing portion 120 having a bypass port 121 is bypassed to the manhole 300 to the initial excellent water flowing into the inflow hole tube 100 Excellent underground penetration treatment facility.
Claim 1
The initial excellent treatment facility (1a)
A dust collector 520 for removing floating impurities and soluble impurities in the initial rainwater introduced into the inside through the inlet pipe 510 of the main body 500;
A settling tank 530 in which the sediments in the initial rainwater passing through the contaminant collecting unit 520 are precipitated;
A swirl screen 540 for passing an initial excellent water from which the sediment is removed from the settling tank 530;
A filtration tank 550 for receiving fine initial water supplied through the swirl screen 540 to remove fine contaminants;
Underwater penetration treatment facility of the initial excellent water, characterized in that consisting of the discharge pipe 560 for discharging the initial excellent water passing through the filtration tank 550 to the outside.
The method according to claim 2,
Underground penetration treatment facility of the initial excellent rain, characterized in that it comprises a bypass pipe (570) for supplying the initial excellent water supplied to the settling tank (530) or filtration tank 550 directly to the discharge pipe (560).
The method according to claim 2,
The swirl screen 540 has a length up and down, the outer container 541 is formed with an initial excellent inlet (541A, 541B) on the top;
An inner container 542 installed in the outer container 541 and having a relatively small inner diameter and whose lower surface is opened;
A flow path tube 543 communicating with the inner container 542 and supplying initial excellent water into the filtration tank 550;
It is provided in the outer container 541, the underground excellent infiltration treatment facility including a sediment discharge hole (544) for discharging the sediment into the sedimentation tank (530).
The method according to claim 2,
The filtration tank 550 is
A fluidized bed filter unit 551 disposed below the filter tank 550;
A porous fine aggregate part 552 provided on the upper surface of the fluidized bed median part 551;
An initial excellent underground penetration treatment facility, characterized in that consisting of a fiber yarn filter unit 553 for the adsorption filtration of the fine microcontaminants of the initial fine water passing through the porous fine aggregate portion 552.
delete The method according to claim 1,
An excellent underground penetration treatment facility of the early stage, characterized in that the wall surface of the manhole (300) in contact with the crushed stone layer 20 includes a plurality of small outlets 310 communicated with the crushed stone layer (20).

Images