KR100634464B1 - Early Rainfall Purification System - Google Patents

Abstract

The present invention is to purify the pollutants of the initial rainfall, in particular to clean the pollutants in the initial rainfall generated from the drainage area through a non-powered device to purify the target material physically, chemically and biologically to be discharged to public waters An early rainfall purification treatment apparatus that enables to.

      The initial rainfall purification apparatus according to the present invention includes a purifier main body having a filter layer on the upper side and a tubular purifier, and an initial rainfall disposed on the upper side of the purifier main body to classify the initial rainfall to guide the initial rainfall to the main body. Rainfall sorting pipe, elliptical inlet pipe connected to the initial rainfall sorting pipe to induce the initial rainfall into the swirl flow in the body, and the purification for precipitation of particulate matter contained in the initial rainfall flowing through the inlet pipe Swirl flow guide formed vertically in the main body of the device, and the inclined surface formed in the lower side of the settling tank and formed in the inclined surface narrowing toward the bottom so that the swirl flow of the super rainfall to turn the sedimentation can be concentrated in the center A wall extending from the swirl flow guide wall to prevent re-injury of the wall and particulate matter deposited along the swirl flow guide wall. Protection cap and preventing drift to avoid drifts caused while passing through the inside filter media layers wherein the purifier body wear and is provided on one side of the drift preventing wear characterized by comprising port outlet for discharging the initial rainfall outside.

Description

Filtering Device for early rainfall

1 is an overall configuration of the initial rainfall purification apparatus according to the present invention

2 is a reference diagram for explaining the configuration of the initial rainfall classification tube according to the present invention

3 is a reference diagram for explaining the configuration of the inlet side of the initial rainfall purification apparatus according to the present invention

Figure 4 is a reference diagram for explaining the configuration of the flow path control unit of the initial rainfall purification apparatus according to the present invention
5 is a detailed view of FIG.

* Description of the symbols for the main parts of the drawings *

10: Purifier main body 11: Media layer

12: Initial rainfall classification building 13: Inflow pipe

14: sedimentation tradition 15: swirl flow guide wall

16: Current prevention cap 17: Drift prevention wear

18: outlet 19: slope

20: Euro-adjusting tube 21: Flow prevention cap support

22: rectification wall 23: support layer

24: sponge media 25: layer cover

26: Excellent pipe line 30; Injury tip

The present invention is to purify the pollutants of the initial rainfall, in particular to clean the pollutants in the initial rainfall generated from the drainage area through a non-powered device to purify the target material physically, chemically and biologically to be discharged to public waters An early rainfall purification treatment apparatus that enables to.

In general, pollutants included in initial rainfall include BOD (biological oxygen demand), COD (chemical oxygen demand), SS (particulate matter), TN (total nitrogen), TN (total phosphorus), heavy metals (Pb, Zn, etc.), oils and fats It means the state containing etc.

Contaminants in such early rainfall usually flow into public waters during rainfall and cause pollution of rivers and lakes, and also penetrate underground and cause contamination of groundwater resources. Therefore, pollutants in the initial rainfall have to be purged and discharged below the level for the environment.

Conventional methods for treating pollutants in early rainfall can be largely divided into storage, infiltration, vegetation, and device types.

In the storage type, rainfall enters a reservoir with a certain capacity, and particulate matter precipitates through a certain residence time. However, this type of storage is difficult to ensure sufficient sedimentation effect due to short residence time when the rainfall increases because the whole rainfall is introduced. In addition, since the storage type can only remove particulate matter, it is difficult to treat dissolved pollutants (BOD). In addition, due to the large site required, it is difficult to install.

Therefore, since the storage device for treating pollutants contained in the initial rainfall only processes particulate matter, it does not serve the purpose of reducing the weighting of organic substances in public waters. Proper treatment is difficult.

Infiltration type is a method of purifying pollutants by using soil as a filter material. It is composed of a shape similar to a reservoir. However, by placing soil having good permeability such as gravel and sand in the upper layer, the initial rainfall is absorbed underground. That's how. However, as the particulate matter is deposited, there is a risk of poor permeability, and pollutants may be transferred to the ground, causing groundwater contamination.

Vegetation type is a method of forming a wetland where aquatic plants and terrestrial organisms coexist to remove pollutants by precipitation, soil adsorption, etc. Early rainfall flowing into wetlands is purified through plant purification, microorganism decomposition, etc. This purification effect is difficult to secure a constant efficiency, it takes a large area, it is difficult to dredge the sediment, so the water quality may deteriorate. .

The device type is a method of purifying the initial rainfall by installing a filtration device inside the structure. Such device types can be divided into two types. It is divided into the device type in the pipeline and the device type outside the pipeline. The device type in the pipeline is a method of filling the filter material using a manhole structure, and the device type outside the pipeline refers to having a separate structure outside the rain pipe. Most of the early rainfall purification equipments in foreign and domestic are in-pipe type. However, in-pipe system types require a separate pretreatment device for particulate matter. In addition, the filter medium has the disadvantage of being vulnerable to the removal of organic matter and heavy metals and pollutants (TN, TP) in the form of physical treatment.

Therefore, it is an object of the present invention to enable the economical and efficient purification of contaminants contained in the initial rainfall.

Another object of the present invention is to enable to effectively reduce the organic load that the initial rainfall is weighted in public waters.

Still another object of the present invention is to secure stable efficiency of initial rainfall treatment through effective pretreatment of particulate matter, and to effectively control heavy metals and pollutants (TN, TP) in addition to organic materials included in initial rainfall. .

Initial rainfall purification treatment system according to the present invention for achieving this object,

      A purifier main body having a filter layer on the upper side and formed of a cylindrical body,

      An initial rainfall classifier located on an upper side of the main body of the purification device to classify the initial rainfall and guide the initial rainfall to the main body;

      An elliptical inlet pipe connected to the initial rainfall classification pipe and leading the initial rainfall to the swirl flow in the main body;

      A settling passage vertically installed in the purifier body for sedimentation of particulate matter contained in the initial rainfall flowing through the inlet pipe;

      A swirl flow guide wall formed on the lower side of the settling barrel and formed of an inclined surface that is narrowed toward the lower portion so that the swirl flow of the super rainfall to orbit the settler can be concentrated in the center;

       An anti-spill cap extending from the swirl flow guide wall to prevent re-injury of particulate matter deposited along the swirl flow guide wall;

       Drift prevention wear to prevent the drift occurs while passing through the media layer in the purifier body,

It is installed on one side of the anti-drift wear, characterized in that consisting of the outlet for discharging the initial rainfall to the outside.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

1 is an overall configuration of the initial rainfall purification apparatus according to the present invention. 2 is a reference diagram for explaining the configuration of the initial rainfall classification tube according to the present invention. Figure 3 is a reference diagram for explaining the configuration of the inlet side of the initial rainfall purification apparatus according to the present invention. Figure 4 is a reference diagram for explaining the configuration of the flow path control unit of the initial rainfall purification apparatus according to the present invention. 5 is a detailed view of FIG. 4 in detail.

Initial rainfall treatment apparatus according to an embodiment of the present invention, as shown in Figures 1 to 5, having a filter layer (11) on the upper side and the purifier main body 10 made of a cylindrical body, and the purifier main body 10 Located in the upper side of the initial rainfall classification pipe to classify the initial rainfall to guide the initial rainfall to the purification device body 10, and the initial rainfall classification pipe 12 is connected to the initial rainfall purification device body ( 10) vertically in the purifier body 10 for sedimentation of elliptical inlet pipe 13 leading to swirl flow within the initial rainfall flowing through the inlet pipe 13 and particulate matter contained in the inlet pipe 13. The settling tank 14 and the lower side of the settling tank 14 is installed to the slope to narrow the width toward the bottom so that the swirl flow of the super rainfall to turn the settling tank 14 can be concentrated in the center The swirl flow guide wall 15 formed and the swirl flow guide wall 15 In order to prevent re-injury of the particulate matter precipitated accordingly, the drift flows through the anti-flow cap 16 extending from the swirl flow guide wall 15 and the filter media layer 11 in the purifier body 10. Drift prevention wear 17 so as not to occur, and the outlet 18 is installed on one side of the drift prevention wear 17 to discharge the initial rainfall to the outside.

      In addition, the purifier main body 10 may be configured such that the lower end portion is formed as the inclined surface 19 to help the formation of swirl flow and increase the settling area.

In addition, the flow path adjusting tube 20 is installed between the swirl flow guide wall 15 and the flow preventing cap 16 so as to adjust the flow path according to the rotational flow rate, and to the upper side of the flow preventing cap 16. Install the anti-flow cap support 21 to couple the flow path control tube 20, the anti-flow cap support 21 can be configured by extending to the distal end of the swirl flow guide wall 15, the pivot The purification apparatus main body 10 is provided between the flow guide wall 15 and the flow prevention cap 16 and is attached to the flow prevention cap support 21 by the floating tip 30 mounted thereon. The position is adjusted according to the flow rate of the fluid flowing into the flow path, if the flow rate is fast, the flow path adjusting tube 20 sinks and the fluid exits to the top of the flow path control tube 20, if the flow rate is slow flow path control tube (20) Rises and the fluid flows out to the bottom of the flow control tube (20) It is configured to be able to increase the effect of the precipitated material. In other words, if the flow rate is high, the flow rate adjustment tube 20 is pushed down by the flow rate, and if the flow rate is slow, the flow rate rises upward by the lower side fluid.
Moreover, the rectifying wall 22 which controls the flow velocity and produces | generates laminar flow is provided in the inner wall surface of the purifier main body 10, The rectifying wall 22 is comprised on the lower part of the said medial layer 11, and is comprised. .

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      In addition, the rectifying wall 22 installed in the purification apparatus main body 10 is configured to form a sloping surface having an inclination toward the bottom to form a laminar flow, thereby increasing the treatment efficiency of the pollutant.

       In addition, the filter medium layer 11 is laminated between the inside of the purification apparatus main body 10 and the settling tank 14 by the filter base support 23, and the filter medium layer 11 is formed of a sponge filter material having activated carbon adhered therein ( 24), and the upper layer portion is provided with a filter layer cover (25) for preventing the loss of the floating medium.

      In addition, the anti-spill cap 16 is configured to begin with the same inner diameter of the swirl flow guide wall 15 at the lower lower end of the swirl flow guide wall 15 and to have an inner diameter wider toward the lower portion thereof, so It is configured to prevent injury.

     In addition, the swirl flow generated in the settling tank 14 forms the apex of the swirling flow by the swirl flow guide wall 15 provided at the lower end of the settling tank 14 so that particulate matter is the central point of the purifier main body 10. Is configured to assemble.

     In addition, it is configured to discharge the effluent through the drift prevention wear 17 installed on the top of the filter layer 11 is configured to prevent the drift of the effluent.

     In addition, the inlet pipe 13 connected to the settling tank 14 is mounted along the curved surface of the settling tank 14 inside the settling tank 14 so that the swirl flow is naturally formed.

     Here, the media layer 11 is installed lower than the inlet 13 and the outlet 18, and is installed higher than the starting point of the swirl flow guide wall 15, the end height of the rectifying wall 17 is the swirl flow guide wall ( It is installed at the same height or slightly lower height as the end of 15).

The initial rainfall purification apparatus according to the present invention configured as described above, as shown in Figures 1 to 4, the initial rainfall classification pipe 12 is a device for selectively collecting the initial rainfall of the total rainfall. When rainfall is collected and flows through the storm pipe 26, the initial rainfall fractionation tube 12 introduces all of the initial rainfall into the initial rainfall purification system. If the flow rate is increased due to the constant rainfall, a certain flow rate or more flows into the original storm pipe 26 by increasing the water level.

The initial rainfall flowing in is introduced through the elliptical inlet pipe 13 as shown in FIG. 3, and forms a swirling flow in the circular settler 14 due to the already generated swirl flow through the elliptical inlet pipe 13. . Swirl flow formed is a central core of the swirl flow due to the swirl flow guide wall 15 through which the particulate matter is quickly settled down. The sediment is precipitated under the anti-spill cap 16, the anti-spill cap 16 prevents the precipitated particulate matter from re-injury.

Dissipation preventing cap 16 is a shape suspended by the dissipation preventing cap support 21 and the fluid flows into the space between the dissipation preventing cap 16 and the swirl flow guide wall (15). This effectively results in solid-liquid separation.

The flow path control tube 20 between the flow preventing cap 16 and the swirl flow guide wall 15 is automatically changed in position when the flow rate is low and the flow rate is high, thereby forming an optimum fluid movement. If the flow rate is fast, the fluid hits the top surface of the flow path control tube 20, in which case the flow path control tube 20 sinks downward. When the flow control tube 20 sinks downward, the fluid exits outward from the point just below the swirl flow guide wall 15, which prevents re-injury of the particulate matter deposited in the lower layer due to the rapid flow rate. In addition, when the flow rate is not fast, the flow control tube 20 is floated upward by the floating tip 30 attached below the top wall of the flow control tube 20 to be connected to the swirl flow guide wall 15. In this case, when the swirl flow is not formed or insufficient due to the low flow rate, it serves to deliver the particulate matter to the bottom layer of the precipitation portion.

Since the fluid flowing out of the settling tank has a constant speed, the rectifying wall 22 is installed to attenuate the kinetic energy to induce laminar flow of the fluid.

The fluid with the kinetic energy collides with the rectifying wall 22 to reduce the flow rate and thereby allow fine particles to precipitate.

The lower inclined surface 19 of the purifier main body 10 has particulate matter that precipitates along the particulate matter that precipitates outside the sedimentation tank 14, and the lower inclined surface 19 of the purifier main body 10 and the discharge preventing cap 16. It is settled into the spaced gap 27 of.

The filter media layer 11 formed on the top of the rectifying wall 22 is composed of layers by the filter strut support 23 and the filter cover 25, and the filter media layer 11 is a spongy media of a hexahedron with activated carbon attached thereto. As a preferable example, it is preferable to fill with 60 to 90% of the media layer 11. The role of the filter medium layer 11 performs a filtration function of fine particulate matter, an adsorption function of activated carbon, and simultaneously performs a biological treatment function by a biofilm formed on the sponge filter medium 24. The adsorption function of activated carbon performs functions that common media such as heavy metal oils and fats cannot perform, and microorganisms attached to the media can dissolve dissolved organic matter contained in the fluid to treat most of the pollutants contained in the initial rainfall. do.

Activated carbon adhered to the filter media accounts for about 10-30% of the dry weight of the filter media, and by controlling the adhesion ratio of the activated carbon, the removal efficiency of the target material can be controlled. In addition, the filling rate of the filtering layer 11 may be adjusted in consideration of the characteristics of the drainage zone and the characteristics of the pollutant in the initial rainfall.

The fluid passing through the media layer 11 is discharged to the outlet 18 through the anti-drift wear 17. The anti-drift wear 17 prevents a drift phenomenon in which the fluid is biased near the outlet 18 so that the fluid is evenly distributed to the entirety of the media layer.

Drift phenomenon is a major factor that causes clogging of the filter medium layer 11 and lowers the treatment efficiency. Therefore, by installing the anti-drift wear (17) to prevent the clogging of the filter medium layer 11 by the particulate matter and to make the fluid evenly in contact with the filter medium layer 10 to increase the effectiveness of the filtration function, adsorption function, biological treatment function. To act.

Such an initial rainfall purification apparatus according to the present invention is not installed in the rain pipe, but installed outside the rain pipe, and installed in the vicinity of the rain pipe, buried underground, and the upper portion of the initial rainfall purification device has a lid. By installing and installing, it is possible to economically and efficiently purify the pollutants contained in the initial rainfall, effectively reduce the organic loads that the initial rainfall adds to public waters, and through the effective pretreatment of particulate matter, It can secure stable efficiency and can effectively control heavy metals and various pollutants (TN, TP) in addition to organic substances included in the initial rainfall.

Such an initial rainfall purification apparatus according to the present invention, by selectively treating only the initial rainfall of the total rainfall, it is possible to treat the pollutants with high efficiency at a small capacity, and unlike the in-pipe treatment apparatus without the treatment of particulate matter particulate matter Treatment and removal of organic matter, heavy metals, oils and fats can be carried out at the same time. If the blockage occurs by using a sponge-type filter material, the blockage phenomenon can be easily solved by pressing, etc. As a result, filtration, adsorption, and biological treatment can be performed at the same time. In particular, the biofilm formed media can remove dissolved organic matter, thereby substantially reducing the pollutant load on public waters.

In addition, the particulate matter precipitated by the anti-corrosion wall is not re-injured, and the flow control tube can automatically adjust the optimum fluid path according to the flow rate, and the maintenance is very easy and economical, compared to the conventional method. It is effective, and the particulate matter precipitated by the anti-spill wall is not re-injured, and the flow control tube can automatically adjust the optimal fluid path according to the flow rate, it is easy to maintain, and it is possible to clean the initial rainfall. It is economically effective.

Claims (11)

      Purifier main body 10 having a filter layer on the upper side and made of a cylindrical body,       An initial rainfall classifying pipe 12 positioned at an upper side of the purifier main body 10 to classify the initial rainfall to guide the initial rainfall to the main body;       An elliptical inlet pipe 13 connected to the initial rainfall classification pipe 12 to guide the initial rainfall to the swirl flow in the main body;       A sedimentation tank 14 installed vertically in the purifier body 10 for sedimentation of particulate matter contained in the initial rainfall flowing through the inflow pipe 13;       Swirl flow guide wall 15 is formed on the lower side of the settling tank 14 is formed with an inclined surface narrowing toward the bottom in order to be able to concentrate the swirling flow of the ultra-low rainfall turning the settling tank 14 to the center and,        An anti-spill cap 16 extending from the swirl flow guide wall 15 to prevent re-injury of particulate matter deposited along the swirl flow guide wall 15;        Drift prevention wear 17 to prevent the drift occurs while passing through the media layer in the purifier main body 10,        Initial rainfall purification apparatus, characterized in that consisting of an outlet (18) installed in one side portion of the anti-drift wear (17) to discharge the initial rainfall to the outside.        The method of claim 1,       The purifier main body 10 has an initial rainfall purification apparatus, characterized in that the lower end is formed in the inclined surface to help form the swirl flow and increase the settling area.         The method of claim 1,         The flow path adjusting tube 20 is installed between the swirl flow guide wall 15 and the flow preventing cap 16 so as to adjust the flow path according to the rotational flow rate, and to the upper side of the flow preventing cap 16. Initial flow purification, characterized in that the flow prevention cap support 21 is installed to couple the flow path control tube 20, the flow prevention cap support 21 extends to the distal end of the swirl flow guide wall (15) Processing unit.      The method according to claim 1 or 3,      Purification device main body by the floating tip 30, which is located between the swirl flow guide wall 15 and the flow preventing cap 16 and attached to the flow preventing cap support 21 is mounted thereon. 10) The position is adjusted according to the flow rate of the fluid flowing into the flow, if the flow rate is fast flow path control tube 20 sinks fluid flows to the top of the flow path control tube 20, if the flow rate is slow flow path control tube ( 20) the initial rainfall purification apparatus, characterized in that to increase the sedimentation effect of the particulate matter due to the fluid flows out to the bottom of the flow path control tube (20).        The method of claim 1,        Initial rainfall characterized in that the rectifying wall 22 is installed on the inner wall surface of the purifier main body 10 to control the flow rate and generate laminar flow, and the rectifying wall 22 is provided on the lower part of the filter medium layer. Purification device.        The method of claim 5,       Initial rectification wall 22 is installed in the purifier main body 10, characterized in that the initial rainfall purification apparatus, characterized in that formed in the inclined surface having a slope toward the bottom.        The method of claim 1,        The filter media layer is laminated between the purification apparatus main body 10 and the settling tank 14 by the filter strut support 23, and the filter media layer is formed of a sponge filter media 24 to which activated carbon is adhered. The upper rainfall portion is characterized in that the initial rainfall purification apparatus characterized in that it comprises a filter layer cover 25 for preventing the loss of floating media.       The method of claim 1,       The anti-spill cap 16 is configured to start at the lower end of the swirl flow guide wall 15 with the same inner diameter as the swirl flow guide wall 15 and to increase the inner diameter toward the lower portion, thereby resuspending the precipitated particulate matter. Initial rainfall purification apparatus, characterized in that configured to prevent.      The method of claim 1,      Swirl flow generated in the settling tank 14 forms a peak of the swirl flow by the swirl flow guide wall 15 provided at the bottom of the settling tank 14 so that particulate matter is located at the central point of the purifier main body 10. Initial rainfall purification apparatus, characterized in that to collect.      The method of claim 1,      Initial rainfall purification apparatus characterized in that to prevent the drift of the effluent by discharging the effluent through the drift prevention wear (17) installed on the top of the media layer.      The method of claim 1,      Initial rainfall purification apparatus characterized in that the inlet pipe (13) connected to the sedimentation vessel (10) is mounted along the curved surface of the sedimentation vessel (14) inside the sedimentation vessel (14) to form a swirl flow.

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