KR100583796B1 - treatment apparatus for polluted stormwater - Google Patents

Abstract

The present invention relates to a liquid contaminant treatment device, the treatment device is an inlet pipe for inducing contaminants of the liquid flow from the outside, and a double screen for filtering while passing through the contaminants of the liquid flow from the inlet pipe A member, a sedimentable material collecting tank for collecting material sedimented and sedimented by the double screen member, a filter tank for filtering the inflow water passing through the double screen member, an effluent storage tank for storing the effluent passing through the filter tank, and It characterized in that it comprises an outlet pipe for discharging to the outside from the effluent storage tank. According to the above configuration of the present invention, it is possible to easily remove the non-point source material generated during rain by using a double screen member and a media tank having a vortex phenomena and a declination screen hole, thereby preventing environmental pollution in advance. In addition to increased convenience, the size of the structure can be minimized, so that it can be easily installed in an urban area that is restricted in installation space, thereby increasing space utilization.

Contaminants, screen members, media tanks, baffle members, inlet pipes, effluents

Description

Liquid apparatus for pollutant treatment {treatment apparatus for polluted stormwater}             

1 is a schematic plan view of a liquid contaminant treatment apparatus according to an embodiment of the present invention.

2 is a schematic side cross-sectional view of the contaminant treatment apparatus according to FIG. 1.

3A and 3B are schematic perspective views and fluid flow diagrams illustrating a double screen member of the pollutant treatment device according to FIG. 1;

Figure 4 is a cross-sectional view showing a filter medium and the inner filtration guide tube is enhanced internal filtration of the pollutant treatment apparatus according to Figure 1;

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

100: pollutant treatment device 12: inlet pipe,

14: dual screen member, 20: sediment collecting material collection tank,

22: medium tank, 26: outflow pipe,

28,34: baffle member, 30: effluent storage tank,

32: middle wall upper hole, 36: water pipe,

38: filter medium

The present invention relates to a contaminant treatment device that is a water pollution prevention technology, and more particularly, to a liquid contaminant treatment device for reducing a nonpoint pollutant source included in rainfall runoff generated during rain.

Nonpoint source refers to a source of pollutants deposited in forests, grassland, construction sites, agricultural land, sediment, roads and industrial sites with rainwater, and is a source of pollution. Since it flows out together, daily and seasonal changes in emissions are difficult to predict and quantify, and are affected by weather conditions, geology and topography.

According to the “Comprehensive Measures for Water Management in the Four Rivers”, non-point sources account for 22-37% of the pollutant loads among all pollutants in the water system. It was estimated that 44.5% of non-point sources had a significant effect on water pollution.

Facilities for removing such nonpoint sources include "vegetable water, vegetation filtration system, artificial wetland, device type facility, reservoir, device type + reservoir, infiltration ditch, and infiltration type". However, in urban areas where installation sites are restricted, it is difficult to install non-point source removal facilities other than device-type facilities.

Accordingly, the present invention has been made to solve the problems described above, an object of the present invention, by using a double screen member and media tank having a non-point source material generated during rainy weather and angular screen holes Easily removed, it prevents environmental pollution and increases the convenience of maintenance, and minimizes the size of the structure so that it can be easily installed in urban areas that are restricted in the installation space. To provide a pollutant treatment apparatus.

This object is achieved by the present invention, in accordance with an aspect of the present invention, the liquid contaminant treatment apparatus, the inlet pipe for guiding the liquid contaminants introduced from the outside, and the liquid contaminants introduced from the inlet pipe A double screen member for filtering while passing through, a settling material collecting tank formed under the double screen member to collect material settled by the double screen member, and a filter tank for filtering the inflow water passing through the double screen member; It characterized in that it comprises a effluent storage tank for storing the effluent water passing through the filter medium tank, and an outlet pipe for discharging to the outside from the effluent storage tank.

At this time, the width of the inlet formed in the front end of the inlet pipe is preferably larger than the width of the rear end of the inlet pipe connected to the double screen member, the double screen member facing the angular direction (tangential direction) of the inflow water on the surface of the screen And an inner screen on which the inner screen hole is formed, and an outer screen on which a screen hole is formed in a direction opposite to that of the inner screen.

According to another aspect of the present invention, the filter tank is filled with a filtration material, and a plurality of micropores are formed in a grid structure having a plurality of micropores at regular intervals, and the filter tank may be easily detachable.

According to another aspect of the present invention, a baffle member is provided at the tip of each discharge passage to suppress the outflow of oil components from the inflow water passing through the double screen member and the outflow water flowing out from the outflow water storage tank, Inflow water that has not passed through the double screen member is not introduced into the filter medium tank is characterized in that it is introduced into the effluent storage tank through the middle wall upper hole formed in the upper portion of the filter medium tank.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and like reference numerals designate like parts throughout the drawings.

1 is a schematic plan view of an apparatus for treating pollutants in a liquid phase according to an embodiment of the present invention, FIG. 2 is a schematic side cross-sectional view of an apparatus for treating pollutants in accordance with FIG. 1, and FIGS. 3A and 3B are in accordance with FIG. 1. A schematic perspective view and fluid flow diagram illustrating a dual screen member of a pollutant treatment device, and FIG. 4 is a cross-sectional view showing a median tank and an internal filtration guide tube having an enhanced internal filtration function of the pollutant treatment device according to FIG. 1. .

As shown in the drawings, liquid contaminant treatment apparatus according to the present invention shown by the reference numeral 100, the inlet pipe 12, the double screen member 14, the sedimentation property to guide the liquid contaminants introduced from the outside The material collection tank 20, the mediator tank 22, the outflow water storage tank 30 and the outflow pipe 26 and the like.

The inlet pipe 12 increases the flow rate by making the width of the inlet formed at the front end of the inlet pipe 12 greater than the width of the rear end of the inlet pipe connected to the double screen member 14.

As shown in FIGS. 3A and 3B, the double screen member 14 for filtering while passing through the contaminants of the liquid flowing from the inlet pipe 12 has the screen member 14 in the direction of the declination of the inflow water on the surface of the screen. Filtration performance is improved by providing an inner screen 18 having an inner screen hole facing the (tangential direction) and an outer screen 16 having a screen hole formed in a direction opposite to that of the inner screen on the surface of the screen. .

The sedimentable material collecting tank 20 is formed in the lower portion of the double screen member 14 to collect the material that is settled, the filter material in the filter medium tank 22 for filtering the inflow water passing through the double screen member 14 A water pipe 36 filled with 38 and formed with a plurality of micropores at regular intervals is incorporated in a grid-like network structure.

Therefore, when the capacity of the effluent flowing through the double screen member 14 is excessive, the effluent is easily discharged to the lower portion along the channel pipe 36 embedded in the filter tank 22, and at the same time, fine holes formed in the channel pipe 36 are formed. Through the filter medium (22) flows out through the filter is to be made quickly filtration.

In addition, since the filter tank 22 is easily removable, the user can easily maintain and maintain the filter tank 22 after a long time of use.

In addition, the outlet storage tank 30 is a place where the effluent passing through the filter tank 22 is stored through the lower hole 24 of the intermediate wall, and the stored effluent is discharged to the outside through the outlet pipe 26. .

At this time, the inflow water that has passed through the double screen member 14 is not introduced into the filter medium tank 22 is not flowing into the filter medium tank 22 through the middle wall upper hole 32 formed on the upper portion of the filter medium tank 22. ) Will flow into.

Furthermore, in order to suppress the outflow of oil components from the inflow water passing through the double screen member 14 and the outflow water flowing out from the outflow water storage tank 30 to the outside of the primary and secondary baffle members ( 28,34) is preferably installed.

According to the configuration of the present invention, the raw water introduced from the outside, that is, the rainwater and non-point source (hereinafter referred to as the inflow water) introduced into the inflow pipe 12 (the inflow water) is the total amount into the cylindrical declination inner screen 18 through the neck of the inflow pipe. It is introduced and does not flow out.

In this case, the cylindrical double screen member 14 is fixed by the screen support, and the inflow water introduced through the inlet pipe 12 may only flow out through the screen member 14 and does not flow out to other paths.

In one embodiment, the screen effective diameter of the cylindrical inner screen 18 is 4.7mm and the screen effective diameter of the outer screen 16 is 2.4mm, but the effective diameter can be adjusted according to the water quality of the influent. It is easy to see.

The inflow water introduced through the inlet pipe 12 is filtered twice in a declination (tangential direction) to the double screen 14 to exhibit superior filtration performance compared to the conventional single declination filtration method. As described above, the screen filtration by 18 and 16 is characterized by having a screen self-clean since the inflow of the inflow water is introduced into the cylindrical screen in a declination (tangential direction) and the declination filtration is performed twice.

That is, vortex phenomena (swirl) occurs inside the cylindrical declination screen 18 by the inflow water continuously flowing in, and the inflow water is tangentially contacted with the declination screen 18 so that no contaminants adhere to the screen. Contaminants are collected in the settling material collection tank 20 formed at the bottom of the central portion of the cylindrical screen.

The influent that has passed through the declination inner screen 18 is then filtered out of the declination outer screen 16 at another declination (tangential direction) as described above, with at least 93% of contaminant particles greater than 1.5 mm removed from the inner screen 18. In the outer screen 16, contaminant particles of 1.2 mm or more are 100% removed.

The oil or grease component in the inflow water passing through the double screen member 14 is suppressed by the primary baffle member 28 described above, and the inflow water through the baffle member 28 is filtered through the connecting pipe 22. Flows into).

The inflow water flowing into the filter medium tank 22 maintains a constant water level above the filter medium tank and is filtered. The filter tank is filtered by an inner filtration channel 36 while filtration is performed at the upper surface of the filter tank 22. (22) Inflow is also introduced into the inner surface and surface filtration and internal filtration proceed simultaneously. In the filter tank 22, the remaining fine contaminants that pass through the double screen member 14 are subjected to the filtration of the filter medium 22. Removed by

And when the inflow water more than the capacity of the filter medium tank 22 is introduced, the inflow flow rate of the capacity of the filter medium tank 22 is bypassed through the middle wall upper hole 32, and the inflow water passing through the filter medium tank 22 is medium. It moves to the effluent storage tank 30 through the wall lower hole 24.

At this time, the flow from the middle wall lower hole 24 to the outflow pipe 26 is an upstream flow flowing from the bottom to the upper side, and the outflow water storage tank 30 through the middle wall upper hole 32 and the lower hole 24. The oil and grease components in the inflow water introduced into the water are suppressed by the secondary baffle member 34.

As a result, the inflow water passing through the cylindrical declination double screen member 14, the filter medium tank 22, and the baffle members 28 and 34 is discharged to the discharge water system through the outflow water storage tank 30 and the outflow pipe 26. .

According to the configuration and method as described above of the present invention, the non-point source introduced with rainwater is reduced through various purification processes such as a cylindrical declination double screen member, a media tank, a baffle member, an effluent storage tank and discharged into the effluent. Water pollution of systems and groundwater can be prevented.

In addition, the filtration using the declination double screen member is an excellent filtration that overcomes the limitations of the conventional direct screen filtration method and the one-time declination filtration method (the limit of particle size of the contaminants that the screen is closed or removed over time). In this way, the maintenance of the screen is made easy, and the filtration efficiency can be increased.

In addition, the non-point source on the road is discharged at a high concentration in the initial rainfall stage, so the runoff from the initial rainfall after passing through the declination double screen member and the baffle member does not come into contact with the media in the media tank, so that it does not cause contamination of the discharge system. It will not have a big impact. This treatment method can minimize the volume of the filter tank and the effluent storage tank, thereby minimizing the required site, so that the overall construction cost can be reduced, and the filter tank can be easily installed and detached from the filter tank. Can be easily exchanged to increase convenience.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims (7)

In the liquid pollutant treatment apparatus, An inlet pipe guiding a liquid pollutant introduced from the outside; Dual screen member for filtering while passing through the contaminants of the liquid flowing in the inlet pipe; A settling material collecting tank formed under the double screen member to collect material settling in the double screen member; A mediator tank for filtering influent water passing through the dual screen member; Effluent storage tank for storing the effluent passing through the filter medium tank; And Liquid contaminant treatment apparatus comprising an outlet pipe for discharging to the outside from the effluent storage tank. The liquid contaminant treatment apparatus of claim 1, wherein a width of the inlet formed at the front end of the inlet pipe is larger than a width of the rear end of the inlet pipe connected to the dual screen member. 2. The screen of claim 1, wherein the dual screen member has an inner screen having an inner screen hole formed on a surface of the screen facing an inclination direction (tangential direction) of the inflow water, and a screen hole in a direction opposite to the hole of the inner screen on the surface of the screen. Liquid contaminant treatment apparatus characterized in that it comprises a formed outer screen. The liquid contaminant treatment apparatus according to claim 1, wherein the filter tank is filled with a filtration material, and a water pipe formed with a plurality of micropores at regular intervals is formed in a grid-like network. 5. The apparatus of claim 4, wherein the filter tank is detachable. The method of claim 1, wherein the baffle member is provided at the tip of each discharge passage to suppress the outflow of the oil component in the inflow water passing through the double screen member and the outflow water flowing out from the outflow water storage tank. Liquid pollutant treatment device. 2. The liquid contamination of claim 1, wherein the inflow water that has not passed through the double screen member does not flow into the filter medium tank is introduced into the discharge water reservoir through an intermediate wall upper hole formed in the upper portion of the filter medium tank. Material handling device.

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