KR101179577B1 - Treatment Facility for Early Rainfall using Water Retention and Its Method - Google Patents

Abstract

The present invention relates to an initial excellent treatment facility apparatus utilizing a disaster reservoir and its composition method, more specifically, to remove the contaminants by inflowing the initial excellent rain and to settle foreign matters to prevent contamination of the reservoir and rivers, Rainwater treatment facility and its formation method utilizing disaster reservoir which can induce underground infiltration and natural purification to keep groundwater supply smoothly, and separate or discharge rainwater inflow and drainage during rainfall and flood The configuration of the present invention includes a pretreatment facility, a reservoir, a sedimentation basin, a water channel, a overflow channel, and a discharge port.
According to the present invention, by removing the contaminants in the initial rainwater and settling foreign matters to prevent the entry of contaminants and foreign matters into the reservoir and rivers, induce underground penetration and natural purification to maintain the supply of groundwater smoothly and at the same time It is possible to provide storm water treatment facilities to separate or discharge rainwater flowing in and rainwater, and to minimize the amount of rainwater remaining in the reservoir to prevent the remaining water from rot or breeding of pests.

Description

Treatment Facility for Early Rainfall using Water Retention and Its Method

The present invention relates to an excellent treatment facility utilizing a disaster reservoir and a method of forming the same, and more specifically, to remove impurities in the initial rainwater and to settle the foreign matters to prevent the entry of foreign substances and debris into the reservoir and rivers, It induces infiltration and natural purification to maintain the supply of groundwater smoothly and at the same time separates rainwater flowing into the initial rainfall and rainfall, discharges or fresh water, and minimizes the amount of rainwater remaining in the reservoir to corrupt or pest The present invention relates to a rainwater treatment facility and a method of forming the rainwater that can block breeding.

As the existing city is expanded or new city is formed by the urban development plan, large-scale development projects such as housing complexes and industrial complexes are carried out, and accordingly, buildings or facilities formed by pouring asphalt or concrete on the natural land surface Increasingly, a large amount of contaminants are generated from these and flows into rivers and the like.

These pollutants include point pollutants, agricultural land, and pastures, which are emitted from a limited and limited source of pollution, such as domestic sewage, industrial waste and livestock waste. Discharge areas can be divided into nonpoint pollutants from a wide range of sources, such as forests, construction sites, mines, logging sites, waste disposal sites, landfills, urban areas, roads and industrial sites.

In the case of nonpoint pollutants, the discharge area is not only extensive but mostly remains on the surface, and it is the main cause of water pollution by flowing into public waters such as rivers or groundwater.

Early rainwater (hereinafter referred to as 'super rain') contains dirt, sand, rubbish, and contaminants on asphalt or concrete floors and is a nonpoint source and is more polluted than ordinary rainwater.

On the other hand, in Korea, the variation of rainfall by season, year, and region is severe, and 65% of the land is mountainous terrain and river slope is geographic characteristic. There is a geographic feature that flows in. In addition, the expansion of asphalt and concrete due to urban expansion or new construction adds to the phenomenon that rainwater does not penetrate underground.

If rainwater, the source of groundwater, cannot be penetrated into the ground for the above reasons, the groundwater will be depleted due to the loss of groundwater, and the flooded rainwater will flow directly into the river or river directly along the surface of asphalt and concrete. Are likely to occur, and facilities designed to address these issues are disaster reservoirs.

Disposable water retention refers to a facility that can store large quantities of rainwater (rainwater), which not only keeps stormwater confined, but sometimes releases stored stormwater gradually to control floods (prevent disasters). And through the bottom portion of the water to seep into the basement to supply groundwater around.

Conventional reservoirs have been built underground, but in recent years it is increasingly installed on the ground around the river so as to preserve the natural ecology of flora and fauna by using water plants to naturalize the water quality or to provide wetlands.

The conventional reservoir 10 will be described with reference to FIG. 1 of the accompanying drawings, a weir 11 surrounding a certain area; The bottom portion 12 of the bank 11 has a plurality of ponds (13-1, 13-2, 13-3, pond) to be dug deeper than this bottom portion 12, the initial rainwater fresh water; An inlet 14 through which rainwater flows in; A scour-preventing rubble 15 for preventing the bottom 12 or the weir 11 from being dug by the flow of rain; Between the pond and the pond, the aggregate 16 for controlling the flow rate of rainwater is installed, and is composed of a discharge port 17 in which rainwater is discharged.

When rainwater flows into the reservoir 10 through the inlet 14 by rainfall, the fresh water flows into the first pond 13-1, and the flow rate is slowed down and stabilized, and the material having a higher specific gravity than the water is precipitated at the bottom of the pond. The material that did not settle in the first pond 13-1 again precipitates through the second pond 13-2 and the third pond 13-3, and finally through the outlet 17 into the river or river. Discharged.

However, such a conventional reservoir has a lot of manpower and time to remove the sediment and the like because the sediment or foreign matter is introduced into the reservoir and the sediment is deposited on the bottom of the pond with a slow flow rate. Is the main cause of downstream water pollution.

Rainfall (continuously known as "rainfall"), which occurs continuously after the initial rainfall, has a large amount of stormwater flowing into the reservoir, and this stormwater flows into ponds (13-1, 13-2, 13-3). ) In order to flow freshly to the entire bottom 12, and because of the high flow rate, sediment and the like deposited in the bottom of the pond in this process is floating, and as a result, the entire reservoir 10 is contaminated. There is a problem that rainwater flows into rivers and rivers through the outlet 17.

In addition, since the pond that constitutes the conventional reservoir is not able to discharge the stored rainwater completely, if the additional rainwater does not flow in, the remaining water may not be discharged and may be decayed for a long time. Because pests such as mosquitoes inhabit, special measures must be taken to prevent them.

Therefore, there is a need for the development of improved reservoirs that can adequately handle rainwater and early rainfall.

The present invention has been made in accordance with the necessity of the development of a reservoir of the conventional improved structure as described above, the present invention is capable of purifying the initial excellent water flowing into the reservoir, and also improved structure that can completely discharge the stored water The purpose is to provide a reservoir.

In addition, the present invention separates the rainwater from the initial rainfall and rainwater to remove the impurities or foreign matter contained in the initial rainwater discharge, and the rainwater rainwater is discharged or desalted, but the impurities contained in the initial rainwater are excellent during rainfall Another purpose is to provide an initial stormwater treatment facility that utilizes disaster reservoirs to control flooding during rainfall.

The object of the present invention as described above is an excellent pipe through which the initial excellent water collection facility flows; A pretreatment facility for collecting and removing contaminants in the initial rainwater flowing from the rain pipe; A catchment basin for collecting initial rainwater flowing out of the pretreatment facility; A sedimentation basin for introducing foreign matter and sludge into the initial rainwater of the sump; A channel through which the initial rainwater discharged from the sedimentation basin flows; It is achieved by comprising a discharge portion that discharges the initial rainwater passing through the water channel and the overflow channel to guide the rainwater flowing out of the catchment to the discharge portion when rainfall occurs.

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According to the present invention, the initial rainwater is introduced into the sedimentation basin by removing the suspended matter and the contaminants, and the rainwater flowing into the rainfall after the initial rainwater is discharged through the overflow channel, and the rainwater channel is excellent in many rainfalls. Flooding can be prevented by desalination and debris or fine particles can be removed from the pretreatment facility to prevent the entry of suspended solids, contaminants, and fine foreign matters into the reservoir.

In addition, the initial rainwater is transported through the channel having a plurality of bends from the sedimentation basin to the discharge part, so that the flow rate is slowed down and stabilized in the process of transport, and sufficient time can be provided for natural purification and rainwater to penetrate underground. In addition, it is possible to minimize the initial excellent water remaining in the water channel does not cause water pooling, the remaining water does not decay, there is an effect of reducing the occurrence of odor and block the reproduction of pests.

1 is a plan view showing a conventional reservoir;
2 is a plan view of the initial excellent treatment facility according to an embodiment of the present invention,
3 is a plan view of the pretreatment facility and the reservoir in the dotted line portion of FIG.
4 is a cross-sectional view of the pretreatment facility and the reservoir;
5 is an installation cross-sectional view of the rain pipe and the inlet pipe,
6 is a cross-sectional view of the sump;
7 is a cross-sectional view of the flood overflow bank and waterway centering on the sedimentation basin,
8 is a cross-sectional view of the discharge portion;
9 is a plan view of the discharge portion and a partially enlarged view of the bundle pipe;
10 is a flow chart showing the storm water treatment process of the present invention.

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

Figure 2 shows a plan view of the reservoir according to an embodiment of the present invention, as can be seen from this figure the reservoir of the present invention largely pretreatment facility 100, catchment 200, sedimentation basin 300, waterway ( 400, the overflow channel 500 and the discharge unit 600.

When rain falls, rainwater flows into the stormwater pipe 50 through the sewer, and the rainwater flowing into the stormwater pipe 50 again passes through the pretreatment facility 100 and flows into the reservoir. At this time, since the initial excellent water contains many foreign matters and contaminants, the pretreatment facility 100 of the present invention collects and removes the contaminants from the initial excellent water flowing from the rain pipe 50.

The reservoir 200 is located downstream of the pretreatment facility 100, and the reservoir 200 collects the initial excellent water flowing out of the pretreatment facility 100.

The initial rainwater collected by the reservoir 200 passes through the sedimentation basin 300 again, whereby small-sized materials, such as soil and sand, contained in the initial rainwater are precipitated by gravity, whereby the initial rainwater is discharged. Is purified.

The water purified to some extent by the sedimentation basin 300 flows through the waterway 400 located downstream again and penetrates underground or is led to another place for natural purification.

The overflow water channel 500 provided on one sidewall of the sedimentation basin 300 has a large amount of rainwater flowing into the sump reservoir 200 due to the rainfall during rain, and thus the rainwater overflowing the sump reservoir 200 to the discharge part 600. Guide the inflow.

The discharge unit 600 discharges the rainwater flowing from the reservoir or the overflow channel 500 into the river or the storm pipe 50.

In the reservoir of the present invention, a plurality of collecting pipes 201 may be installed to collect rainwater flowing from the valleys and valleys, as well as the rain pipes 50, and the initial excellent water flowing from the water collecting pipes 201. Inflow to remove the contaminants from the pre-treatment facility (100a) to enter the reservoir (200a), rainwater rainwater can be provided with a number of sedimentation basin (300a) to remove fresh water or discharge, this collection pipe ( Inside the reservoir 1 of 201, the scour prevention crushed stone 202 may be installed to prevent scour due to rainwater flow rate. Reference numeral 11 denotes a weir of the reservoir 1.

3 and 4 show plan and cross-sectional views of the pretreatment facility and the sump.

The pretreatment facility 100 includes an inlet pipe 101 for introducing the initial excellent water from the rain pipe 50; A collecting chamber 110 for collecting the initial excellent water flowing from the inflow pipe 101; Installed in the collecting chamber 110 and configured to include a collecting network 120 for collecting the contaminants in the initial excellent water flowing into the inlet pipe 101 and the outlet pipe 102 for outflowing the initial excellent water in the collecting chamber 110 do.

Early rainfall includes many industrial and household wastes and fallen leaves. When such contaminants enter the reservoir 1, the entire reservoir 1 is contaminated and considerable manpower and time are consumed to remove it from the collection network 120 of the collecting chamber 110.

Figure 5 shows a perspective view of the installation cross-section of the inlet pipe connected to the rain pipe.

Inside the rain pipe 50 is provided with a overflow wear 51 having a constant height. The overflow wear 51 has formed a jaw in the rain pipe 50 to reduce the flow of rainwater can be introduced into the pretreatment facility 100, the initial excellent water is a constant height to flow into the pretreatment facility 100 In case of rainfall and flooding, only a certain amount of rain is allowed to flow into the pretreatment facility 100.

6 shows a cross-sectional view of the sump.

Reservoir 200 is made of a rainfall overflow bank (210) and rainwater overflow banks (220) flowing in the rainwater overflows during the occurrence of rainfall, the flood overflow bank (220) is made of It may be formed higher than the rainfall overflow bank (210).

In the present invention, depending on the amount of rain falling for a certain time, the process is classified according to the amount of rainfall rainwater and flood time, the rainfall process according to the present invention, the rainwater during the initial rainfall after a rainwater reservoir ( More rain than the amount of rainwater flowing into the sedimentation basin 300 from the 200) flows into the catchment 200 so that the water level of the catchment 200 rises and overflows to the rainfall overflow bank 210. At the time of flooding, more rainwater flows into this catchment 200 than the amount of rainwater flowing into the rainfall overflow bank 210. The rainwater flowing into the catchment 200 causes the flood overflow bank 220 to be flooded. Overflow and freshwater to the reservoir (1). Crush prevention crushed stone (211, 221) is installed on each of the rainfall overflow bank (210) and flood overflow bank (220).

Rainfall that flows through the rainfall overflow bank 210 flows to the overflow channel 500 and is discharged through the discharge portion 600, rainwater overflowed by the flood overflow bank 220 is fresh water in the reservoir (1).

In addition, the reservoir 200 is provided with a sedimentation basin inlet pipe 301 for introducing the initial excellent water of the reservoir 200 into the sedimentation basin 300.

Figure 7 shows a cross-sectional view of the flood overflow bank and waterway centered on the sedimentation basin.

The sedimentation basin 300 is a place for precipitating and purifying sludge and fine foreign substances by gravity by extremely reducing the flow of the flow rate, and the sedimentation basin inlet pipe 301 through which the initial rainfall flows from the sump reservoir 200; A float blocking fence 310 for preventing the floating material 30a from flowing into the reservoir 1 and a settling discharge path 302 provided at the lower portion of the floating blocking fence 310 to discharge initial rainwater to the water channel 400 are provided. It is configured to include.

Float blocking fence 310 and the floating body 313, the height is shifted according to the water level by buoyancy; It may include a variable body 312 is installed in the lower portion of the floating body 313 and the discharge path 302 is provided in the lower portion of the variable body 312 is discharged the initial rain of the settling basin 300. The floating body 313 floats on the water surface by the buoyancy of water, and is moved up and down according to the variable water level. The lower portion of the floating body 313 is provided with a variable body 312 to prevent the flow of the floating body 313 and the length is changed by the vertical action of the floating body 313.

The variable body 312 may be made in a telescopic manner, and the lowermost support is fixed. Since the water level in the reservoir 1 rises and falls at the same time as the level of the flat water level L and the rainfall water level H, the variable body 312 and the floating body 313 are in accordance with the flow rate. It is hardly affected.

The lower side of the variable body 312 is provided with a sedimentation basin discharge path 302 for initial discharge of the sedimentation basin 300. The initial rainwater passing through the sedimentation discharge channel 302 flows to the water channel 400, in which the sedimentation discharge channel 302 and the water channel 400 prevent the scour of the bottom or side of the channel 400 by the flow of the flow rate. Between the flow velocity reduction crushed stone 320 may be installed.

The flow rate reduced crushed stone 320 may be formed by filling gravel and crushed stone, etc. in a frame having a predetermined height.

Next, the water channel 400 will be described.

The channel 400 (see FIG. 2) has a plurality of bends, and is formed deeper than the bottom portion 1a of the reservoir 1, and is gently configured to have a constant inclination from the upstream to the downstream of the channel 400. The upper portion of the water channel 400 is connected to the sedimentation basin 300 and the downstream is connected to the discharge portion 600.

In addition, aquatic plants 55 may be planted in the waterways 400 and the bottom 1a to induce natural water purification as the initial rainwater passes. Therefore, while the initial excellent water passes through the channel 400 having a plurality of bends, the flow rate of the initial excellent water is slowed down and sufficient time is allowed to penetrate into the basement.

The initial rainwater that has not penetrated underground while passing through the waterway 400 flows to the discharge portion 600 installed downstream of the waterway 400, and the discharge side of the discharge portion 600 is downstream of the rain pipe 50, the river and Being connected to the river, the initial rainwater flowing into the discharge portion 600 is eventually discharged to the downstream side, the river and the river of the rain pipe (50).

With this configuration, when the initial rainwater is discharged, the water of the reservoir 1 may be penetrated into the ground or discharged to minimize the initial rainwater remaining in the water channel 400, thus minimizing the residual amount of the initial rainwater in the reservoir 1. This can create an environment where residual water can rot or odor generation can be minimized and pest growth can be prevented.

Downstream of the water channel 400 is provided with a discharge portion 600 for discharging the initial excellent and rainwater from the reservoir 1, the discharge portion 600 may be configured to control the discharge amount or to block. That is, by adjusting the discharge amount of the discharge unit 600 may be provided with a facility that can be adjusted to control by determining whether to continuously drain or discharge the rainwater in the reservoir (1).

8 and 9 show a cross-sectional view and a plan view of the discharge portion, respectively.

The discharge part 600 is a manhole 510 and a discharge pipe 700 which discharge the rainwater through the flood overflow bank 220 to discharge the initial excellent rainwater and the reservoir 1 to the rainwater pipe 50 or the river. It is composed.

The pipe that discharges the initial excellent water through the flood overflow bank 220 may be formed by a combination of the waterproof oil pipe 610 and the discharge pipe 640.

Waterproof hole pipe 610 is a water pipe 400 installed on the waterway 400 side of the flood overflow bank 220 has a plurality of waterproof oil holes 611, the discharge pipe 640 is in the form of a conventional pipe that is installed toward the overflow channel 500 side. Can be done.

In addition, the overflow port 630 may be included so as to bypass the freshwater drainage on the waterway 400 side, the overflow port 630 is installed downward on the inclined surface of the waterway 400 side of the flood overflow bank 220 It may be installed to penetrate the waterproof oil hole 610 and the discharge pipe 640.

This wall outlet 630 is blocked when the waterproof oil hole 611 of the waterproof oil hole 610 is not able to perform its role, or when the amount of rain that is greater than the amount of rain discharged through the waterproof oil hole 610 is carried over. By discharging rainwater through the discharge port 630, it prevents the loss of the flood overflow bank 220 and facilitates the discharge.

In addition, the outlet 630 may be used for cleaning the waterproof hole 610 and the discharge pipe 640, the cleaning worker enters the outlet 630 of the waterproof hole 610 and the discharge pipe 640 Can be washed Therefore, the diameter of the outlet port 630, the waterproofing hole 610 and the discharge pipe 640 should be large enough to allow the operator to enter and exit. In general, if the diameter of the waterproof hole 610 and the discharge pipe 640 is increased to about 600mm, there is no big problem in cleaning. However, when the diameter of the waterproof perforated pipe 610 is large, the amount of rainwater discharged at a time becomes too large to induce underground rainwater penetration or shorten the time for natural purification. For this reason, there is a need to limit the amount of rainwater discharged in the present invention, in the present invention is provided with a blocking plate 612 on the outlet side of the waterproof oil hole tube 610 to use a large diameter waterproof oil hole tube 610 and the discharge pipe 640. Even so, the amount of rainwater discharged can be limited.

The size of the hole 612a provided in the blocking plate 612 can be configured to be adjustable so that the amount of rainwater discharged can be adjusted. In addition, the blocking plate 612 may be installed at the inlet side of the discharge pipe 640.

The scour prevention crushed stone 620 to prevent scouring may be further provided outside the water channel 400 side of the waterproofing hole 610. The scour-resistant crushed stone 620 limits the flow rate and discharge flow rate, and prevents the clogging of the waterproof oil hole 611 from foreign matters.

A plurality of bundle tubes 650 may be installed inside the scour crushed stone 620.

Bundle pipe 650 is a cross-section made of 'S' shape and is a bundle of a plurality of tubes extending in the longitudinal direction in one bundle to facilitate drainage, even if the space gradually invaded the bundle in the shear surface There is a structure that can not be blocked to the inside. Therefore, the rainwater introduced into the bundle pipe 650 is guided toward the waterproof oil hole tube 610 as the inner flow of the bundle pipe 650 to allow for easier discharge.

The flow of rainwater treatment plant using the reservoir of the present invention is different from the flow of rainwater at the time of initial rainfall, rainfall and flooding.

The formation method of the reservoir according to the amount of rainwater will be described.

10 is a flow chart showing the storm water treatment process of the present invention,

Inflowing rainwater from the rain pipe 50 (S_10);

Removing the contaminants from the pre-treatment facility 100 using the introduced rainwater (S_20);

Transferring the rainwater from which the contaminants have been removed to a water collecting reservoir (S_30);

When the initial rain inlet (S_30), the step (S_41) is transferred to the settling basin 300;

Precipitating sludge (S_42) by gravity in the initial excellent water transferred to the settling basin (300);

Discharging the initial excellent sludge precipitated into the water channel 400 (S_43); And the discharged initial rainwater induces natural infiltration and underground penetration of the initial rainwater by the aquatic plant 55 planted in the waterway 400 while passing through the waterway 400, and the initial rainwater that has not penetrated into the basement is Discharging (S_44) from the reservoir 1 to the stream; It may be formed to include.

In addition, when the rainwater inflow (S_51), the rainwater flowing into the sump (200) rainfall overflow bank 210 (S_52) flows into the overflow channel 500 (S_53) and the overflow water Rainwater introduced into the furnace 500 may be formed to further include the step of allowing the discharge (S_44) through the discharge unit 600.

In addition, if the rainwater during the flood flows, the rainwater flowing into the reservoir 200 is overflowed to the flood overflow bank 220 (S_61) to be formed to further include the step of fresh water (S_62) in the reservoir (1). Can be.

According to the present invention, the initial rainwater is introduced into the reservoir by removing the floating matters and contaminants, and the rainwater flowing into the rainwater after the initial rainwater is discharged through the overflow channel, and the rainwater drainage can not be accommodated. Flooding can be prevented by desalination and debris can be removed from pretreatment facilities and sedimentation basins to prevent the entry of suspended solids, contaminants, and fine foreign matter in the initial stormwater into the reservoir.

In addition, the initial rainwater is configured to flow through the channel with a number of bends and gentle slopes from the sedimentation basin to the discharge, so that the flow rate is slowed down and stabilized during the flow to the channel, allowing sufficient time for natural purification and rainwater to penetrate underground. A margin can be provided, and the amount of rainwater remaining in the waterway can be minimized so that water pooling does not occur, and the remaining rainwater can be decayed or reduce the occurrence of odor and block the reproduction of pests.

1: reservoir 1a: bottom
50: Excellent Hall 51: Overflow wear
55: aquatic plants 100, 100a: pretreatment facility
101: inlet pipe 102: outlet pipe
110: collection room 120: collection network
200, 200a: catchment 210: rainfall overflow bank
211, 221, 620: Scour prevention crushed stone 220: Flood overflow bank
30a: float
300, 300a: sedimentation basin 301: sedimentation basin inlet pipe
302: sedimentation discharge furnace 310: floating block fence
312 variable body 313 floating body
400: waterway
500: Wolryulsu 510: Manhole
600: discharge portion 610: waterproof perforated pipe
611: waterproof pore
630: Wolyugu 640: discharge pipe
650: bundle pipe 700: discharge pipe

Claims (12)

Rainwater pipe 50 through which rainwater is collected and flows;
A pretreatment facility (100) for collecting and removing contaminants in the initial rainwater flowing from the rain pipe (50);
A catchment reservoir 200 for collecting the initial excellent water flowing out of the pretreatment facility 100;
A sedimentation basin 300 for introducing an initial excellent water of the sump 200 to precipitate foreign matter and sludge;
A channel 400 through which the initial rainwater discharged from the settler 300 flows;
Discharge part 600 that discharges the initial excellent water passing through the waterway 400 and
It is configured to include a water flow channel 500 for guiding the rainwater flowing from the catchment 200 to the discharge unit 600 when rainfall occurs,
The catchment 200 includes a rainfall overflow bank 210 that overflows rainwater flowing in during rainfall and a flood overflow bank 220 flowing in rainwater flowing in the flood, The initial excellent treatment facility utilizing a disaster reservoir, characterized in that the height is formed higher than the rainfall overflow bank (210).
The method according to claim 1,
The pretreatment facility 100
An inlet pipe 101 for introducing an initial excellent water from the rain pipe 50;
A collecting chamber 110 for collecting initial excellent water flowing from the inlet pipe 101;
A collecting network 120 installed in the collecting chamber 110 to collect contaminants in the initial excellent water of the inlet pipe 101;
Initial excellent treatment facility utilizing a disaster reservoir, characterized in that it comprises an outflow pipe (102) for outflowing the initial rain in the collection chamber (110).
delete The method according to claim 1,
A float blocking fence 310 is installed to prevent the float 30a introduced into the sedimentation basin 300 from being introduced into the reservoir 1.
Initial sewage treatment facility utilizing a disaster reservoir, characterized in that between the sedimentation basin 300 and the waterway 400 includes a flow rate reduced crushed stone 320 to reduce the flow rate of the initial rainwater discharged from the sedimentation basin (300).
The method of claim 4,
The float blocking fence 310
A floating body 313 whose height is shifted according to the water level by buoyancy;
A variable body 312 installed at a lower portion of the floating body 313 and having a variable length;
The initial excellent treatment facility utilizing a disaster reservoir, characterized in that provided in the lower portion of the variable body 312 is configured to include a sedimentation discharge path (302) for the initial discharge of the sedimentation basin 300.
The method according to claim 1,
The discharge unit 600 is
It is installed to penetrate the flood overflow bank 220, the waterway 400, the waterproof oil hole 610 having a plurality of waterproof oil holes 611 is installed and the discharge pipe 640 to the overflow channel 500 side An excellent initial treatment facility utilizing a disaster reservoir, characterized by being installed.
Claim 6
Disaster reservoir, characterized in that it is installed downward on the inclined surface of the waterway 400 side of the flood overflow bank 220 and the water outlet 610 and the outlet 630 penetrating the discharge pipe 640. Excellent excellent treatment facility using
The method of claim 6,
The scour prevention crushed stone 620 to prevent scouring is installed on the outside of the waterproof oil hole 610, the outlet of the waterproof oil hole 610 is used for the disaster reservoir, characterized in that the blocking plate 612 is provided. Initial excellent treatment facility.
The method according to claim 8,
The initial excellent treatment facility utilizing a disaster reservoir, characterized in that a plurality of bundle pipe 650 is installed inside the scour prevention crushed stone (620).
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