KR20150047908A - Apparatus for reducing nonpoint source pollutants - Google Patents

Abstract

The present invention is to provide an apparatus for reducing nonpoint pollution, which can be easily applied to a conventional road system, effectively filters initial rainwater, thereby providing the filtered water to underground soil or a drain pipe, the apparatus comprising: an upper grating (110, 210) which is exposed to the ground, and into which initial rainwater is introduced; a first filter unit (120, 220) which is disposed on a lower side of the upper grating and has a first filter part (121, 221) which is formed to filter the introduced initial rainwater primarily; a filter tank (130, 230) which is disposed on a lower side of the first filter unit, and accommodates the initial rainwater filtered by the first filter unit; a second filter unit (140, 240) which divides the inner space of the filter bath into an inlet space (131a, 231a) which temporarily stores the inflow water primarily filtered by the first filter unit, and an outlet space (131b, 231b) as the remaining space, and which is formed to secondarily filter the initial rainwater when the introduced initial rainwater moves from the inlet space to the outlet space; and an overflow pipe (131, 231) which is disposed on one side of the outlet space, and discharges the filtered initial rainwater to the outside of the filter bath, wherein a mesh of the first filter unit (120, 220) is bigger than a mesh of the second filter unit (140, 240).

Description

[0001] APPARATUS FOR REDUCING NONPOINT SOURCE POLLUTANTS [0002]

More particularly, the present invention relates to a non-point pollution abatement device, and more particularly, to a non-point pollution abatement device, which is provided at a pavement side of a city to treat non-point pollution of road runoff along with the function of existing road rain- ≪ / RTI >

In addition, the present invention can be installed together with a rainwater infiltration storage facility to purify the initial stormwater and penetrate the soil of the ground, thereby securing the groundwater.

Sources can be broadly divided into point sources and non-point sources.

Point pollution sources are specific and clear for pollutant discharge points such as factories, domestic sewage, sewage treatment plants and livestock farmers. Also, since these point sources are artificial, they are less affected by natural factors, and the difference in emissions during the year is relatively clear. Therefore, it is concentratedly discharged from a point source to a point (mainly a treatment site) through a conduit, and the treatment efficiency is high.

On the other hand, unlike the point source mentioned above, the nonpoint source is unspecific and uncertain. In addition, the pollution generated at an unspecified place is diluted or diffused and discharged to a large area, and the discharge efficiency is not good because prediction is difficult due to a serious change in emissions due to natural factors such as rainfall.

Especially, as the city develops, the building area increases and roads become packed, and the problem of non-point pollution in urban areas is emerging.

Here, non-point pollution sources in urban areas vary from land, roads, and roofs of buildings, but the largest share of load is the non-point pollution source on the road surface. This is because the leaves, dust, oil, heavy metals and tire wear materials accumulated on the road surface are discharged in the form of outflow caused by the initial rainfall during rainfall.

In addition, the conventional rainwater collecting facility provided on such a road surface has a problem that rainwater inflow to the soil is blocked because the collected rainwater is flowed as it is to the excellent canal.

This results in a drastic decrease in the amount of water penetrating into the ground in proportion to the decrease in the permeable area, and in addition, it accelerates the effect of the heat island in the city. Therefore, A need exists for a nonpoint pollution abatement apparatus that supplies the nonpoint pollution control apparatus.

Conventionally, conventional non-point pollution abatement devices such as the patent No. 1239227 and the patent No. 1122040 are constructed in the stream discharge point portion, and are composed of the first and second treatment tanks, the storage tanks, and the treatment tanks by the filter media. Such a device is installed at the end of the watershed, which results in a large scale installation and a high cost, and has a problem in that the effect of non-point pollution treatment on site is small.

Also, the use of rainwater and the pretreatment tank installed with the infiltration facility have not been able to individually implement the functions of the rainwater catcher applied in the existing road system of the city.

On the other hand, the present inventor has proposed a "infiltration and storage system having a purifier and a double pipe" as in Patent No. 978238. FIG. 1A is a perspective view showing a double drain pipe of a penetration and storage system having a purge water collecting tank and a double water pipe according to the related art, and FIG. 1B is an exploded perspective view of FIG. 1A.

1A and 1B, the double drain pipe 200 of the infiltration and storage system having the purge water collecting tank and the double water pipe includes a water pipe 110 having a lower surface opened, a water pipe 110 and a grating cover 150 provided at an upper portion of the opening of the drain pipe 130. The grill cover 150 is installed at the top of the drain pipe 130 and has a top surface opened. The dual drain pipe 200 according to the related art may be integrally formed by combining the water pipe 110 and the drain pipe 130 by the recessed portion 136 and the convex portion 116, .

The permeable pipe 110 has a hollow structure with a lower surface opened. The permeable hole 112 is formed on one side and the convex portion 116 is formed on the upper surface. Here, the lower part of the water pipe 110 stands upright on the ground, and the water hole 112 communicates with the opened lower surface.

Further, the lower part of the water pipe 110 is opened to allow the rainwater to move or temporarily store and penetrate into the lower gravel layer to be stored. And rainwater infiltrated into this gravel layer is finally penetrated into natural ground.

A drainage pipe 130 is formed on both sides of the drainage pipe 130 and a recess 136 is formed on the lower surface of the drainage pipe 130 to be fixed to the convex portion 116 of the water pipe 110 . The drain pipe 130 and the water pipe 110 may be integrally formed. A stepped surface 134 is formed on the upper opening surface of the water discharge pipe 130.

The drain pipe 130 and the water pipe 110 are formed in a symmetrical shape except for the recessed portion 136 and the convex portion 116. The drain pipe 130 of the conventional drain pipe 130 is preferably formed in the same line, . The concave portion 136 and the convex portion 116 relating to the coupling of the drain pipe 130 and the water pipe 110 according to the related art can be coupled by simple seating. However, in order to provide a stronger bonding force, The recessed portion 136 of the water pipe 110 is inserted into and fixed in the longitudinal direction of the convex portion 116 of the water pipe 110 to prevent the upward and downward departure.

The grating cover 150 is seated on the upper step surface 134 of the drain pipe 130 according to the related art and has a plurality of rectangular through holes 152 through which rainwater flows. The grating cover 150 functions to primarily suspend suspended solids when waste leaves or trash are introduced into the drain pipe 130 together with the effluent. In addition, it prevents pedestrians and vehicles from damaging the infrastructure.

However, since the conventional art is formed by only a plurality of rectangular through-holes 152 through which rainwater flows into the grating lid 150, it is not effective for the treatment of contaminants such as fallen leaves, 152), the treatment of contaminated water is not smooth, and the treatment of flood damage is not smooth, resulting in the problem that the road is flooded with water.

Patent registration 101239227 (Feb. 26, 2013.) "Non-point pollution abatement device" Registration of patent 101122040 (2012. 02. 23.) "Greenhouse Integrated Rainwater Purification Storage Device" Patent Registration 100978238 (Aug. 20, 2010) "Penetration and Storage System with Purification Sink Tank and Dual Drain Pipe"

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior arts, and it is an object of the present invention to provide a method and apparatus for efficiently applying an existing storm system to an underground soil or a sewage pipe, So that it is possible to prevent the obstruction from blocking the overflow pipe.

Another object of the present invention is to provide a non-point pollution abatement device which is excellent in durability and can easily remove filtered pollutants.

In order to accomplish the above object, the present invention provides a non-point pollution abatement device, comprising: an upper grating (110; A first filtration unit (120; 220) provided below the upper grating and having a first filtration unit (121; 221) formed to primarily filter the introduced initial rainwater; A filtration tank (130; 230) provided below the first filtration unit and containing an initial storm filtered by the first filtration unit; The inside of the filtration tank is divided into an inflow space 131a (231a) for temporarily storing inflow water primarily filtered by the first filtration unit and an outflow space (131b; 231b) A second filtration unit (140; 240) formed to primarily filter the initial storm upon movement from the inflow space to the outflow space; And a drain pipe (131, 231) provided at one side of the outlet space for discharging the filtered initial storm to the outside of the filtration tank, wherein the mesh of the first filtration unit (120, 220) (140; 240).

Preferably, the first filtration unit 120 (220) has a first inclined portion 122 (222) for guiding an initial storm that is inclined toward the first filtration portion 121 (221).

Preferably, the first filtering unit 221 is installed so as to be inclined, and the contaminants filtered by the first filtering unit 221 are separated by the impurity treating unit 232a.

More preferably, the second inclined portion 123 (222 ') is also formed on the other surface of the first inclined portion 122 (222) to guide the initial clearance toward the first filtrated portion 121 .

Preferably, the second filtration unit has a height lower than the height of the filtration tank and divides the inflow space and the outflow space of the filtration tank.

Preferably, the wall-flow pipe is provided on one side of the bottom surface of the outlet space, the side wall being spaced apart from the bottom surface by a predetermined distance.

Preferably, the apparatus further comprises a fixed frame (150; 250) provided between the first filtration unit and the filtration tank for receiving the upper grating and the flange of the first filtration unit and fixing the flange to the filtration tank .

More preferably, the contaminant processing unit 232a is connected to the city gas pipeline through the city gas pipeline connection unit 232.

Preferably, the apparatus further comprises a sedimentation tank (160, 226) provided at the bottom of the inflow space of the filtration tank to remove contaminants that have not passed through the second filtration section of the filtration tank.

More preferably, the impurity treating section 232a and the inflow space 231a are distinguished from each other by the rainwater purifying section partition plate 225, and the rainwater purifying section partition plate 225 and the first filtering section 221, Are inclined in mutually opposite directions.

Most preferably, the first inclined portion 222 has an inclination of 5 to 15 ° with respect to the horizontal direction, and the first filtering portion 221 has an inclination of 30 to 60 ° with respect to the horizontal direction And the rainwater purifying section partition plate 225 has an inclination of 120 to 150 degrees with respect to the horizontal direction.

Preferably, the second filtration unit 240 includes a filter box 241 having two or more slider grooves 241a formed therein, at least two filter media 241a, And a filter material filled between the space partition filter 242 and the filter medium space filter 242.

As described above, according to the non-point pollution reduction apparatus of the present invention, the initial rainwater can be efficiently filtered three times or more from the upper grating, the first filtration member, and the second filtration member to supply clean rainwater to the underground soil or the sewage pipe have.

Further, the present invention has an additional effect that the durability is excellent, the filtered and deposited contaminants can be easily removed, and the filtration member can be replaced according to the prospect.

Further objects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

FIG. 1A is a perspective view showing a double drain pipe of a penetration and storage system having a purge water collecting tank and a double water pipe according to the related art.
1B is an exploded perspective view of FIG. 1A.
2 is a view schematically showing a non-point pollution abatement device of the present invention embedded.
3 is an exploded perspective view of a nonpoint pollution reduction device according to an embodiment of the present invention.
FIG. 4 is a schematic view of the combined non-point pollution reduction apparatus shown in FIG. 3; FIG.
5 is a use state diagram of a non-point pollution abatement apparatus according to an embodiment of the present invention.
6 is a cross-sectional view of a non-point pollution abatement device including a pretreatment rainwater receiver in accordance with another embodiment of the present invention.
7 is an exploded perspective view of the apparatus for reducing non-point pollution in FIG.
8 is a projection view of the apparatus for reducing non-point pollution in FIG.
9 is a process conceptual view of the apparatus for reducing non-point pollution in Fig.
Figure 10 is a detailed view of the variable second filtration unit of Figure 6;

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 10. FIG.

It should be understood, however, that the appended drawings and Examples are provided only to facilitate the disclosure of the present invention, and that the scope of the present invention is not limited by the accompanying drawings and the embodiments, It would be easy to know if you are a person who has.

(Embodiment 1)

Now, a non-point pollution reduction apparatus according to a first embodiment of the present invention will be described in detail with reference to Figs. 2 to 5. Fig.

3 is a disassembled perspective view of the apparatus for reducing non-point pollution according to an embodiment of the present invention. FIG. 4 is a cross- FIG. 5 is a use state diagram of a non-point pollution abatement apparatus according to an embodiment of the present invention. FIG.

As described above, with the development of the city, the building area increases, and the road 1 is packed, and the problem of non-point pollution in urban areas is emerging.

Here, the nonpoint source of pollution in urban areas varies from land, road (1), and roof of a building, but the largest share of load is the nonpoint source of road (1). Roads (1) This is because the leaves, dust, oil, heavy metal, and tire wear caused by automobiles accumulated on the road surface are discharged in the form of outflow due to initial rainfall during rainfall.

Therefore, the non-point pollution abatement apparatus 100 of the present invention is preferably installed at the edge of the road 1.

Referring to FIG. 2, the ground is largely divided into a road 1 and a sidewalk 2, and these sections are divided based on the boundary stones 3. Specifically, the sidewalk 2 is generally formed higher than the road 1, and the road 1 and the sidewalk 2 are partitioned on the basis of the boundary stones 3, That is, the road 1 and the boundary stones 3 can be installed adjacent to each other.

FIG. 3 is an exploded perspective view of a non-point pollution abatement device 100 according to an embodiment of the present invention, and FIG. 4 is a perspective view of the nonpoint contamination abatement device 100 shown in FIG. 3 combined.

3, a nonpoint pollution reduction apparatus 100 according to an embodiment of the present invention mainly includes an upper grating 110, a first filtration unit 120, a filtration tank 130, a second filtration unit 140, And a sidewall pipe 131.

In particular, the upper grating 110 is formed of a metal material in consideration of durability because the upper grating 110 is exposed to the ground and the initial storm flows therein. In order to allow the contaminants introduced by the initial storm and the initial storm to be introduced And is formed with a relatively large lattice structure.

The first filtration unit 120 includes a first mesh unit 121 provided below the upper grating 110 and serving as a first filtration unit for primarily filtering incoming initial storms.

The first filtration unit 120 may include an induction slope 122 and a tapered surface 123 to effectively concentrate the initial storm that flows into the first mesh unit 121.

Specifically, the first filtration unit 120 is sloped at one side of the first mesh part 121 to guide the initial stripe introduced through the upper grating 110 to the first mesh part 121 It is preferable that the guide slope 122 is formed.

The first mesh portion 121 is formed with three sidewalls connected to the inner side of the flange portion 124 and one sidewall connected to the guide slope 122, And a tapered surface 123 that is inclined so as to be closer to the opposite side wall toward the lower side.

The first filtration unit 120 includes a flange portion 124 formed at an upper edge of the first filtration unit 120 to support the upper grating 110 so that the stable non- ) Can be mutually interlocked.

The filtration tank 130 is provided below the first filtration unit 120 and receives the initial storm filtered by the first filtration unit 120. The upper surface of the filtration tank 130 supports the lower surface of the flange 124 formed in the first filtration unit 120. This filtration tank 130 may be formed of a non-permeable concrete material to accommodate the initial storm.

The second filtration unit 140 divides the inside of the filtration tank 130 into an inflow space 131a as a space below the first mesh portion 121 and an outflow space 131b as a space outside the first mesh portion 121, And a second mesh portion 141 formed to filter the initial rain when the incoming initial rain is moved from the inflow space 131a to the outflow space 131b.

That is, the inflow space 131a is a space partitioned below the first mesh part 121 and primarily inflowed by the first mesh part 121, and the inflow space 131b, When the initial storm flows in the inflow space 131a, the initial storm filtered by the second mesh portion 141 is flowed in and out.

The second filtration unit 140 may have a height lower than the height of the filtration tank 130 to partition the inflow space 131a and the outflow space 131b of the filtration tank 130. [ When the amount of precipitation is large, the initial storm is quickly moved from the inflow space 131a to the outflow space 131b by the upper portion of the filtration tank 130, that is, the portion where the second filtration unit 140 is not located, Because it can limit overflow.

On the other hand, the drain pipe 131 is provided on one side of the outlet space 131b to discharge the filtered initial effluent to the outside of the filtration tank 130. Here, external may be underground soil or sewage. The drain pipe 131 is provided on one side of the outflow space 131b so as to deposit the final sediment that has not been filtered by the second mesh unit 141 and to discharge clean initial storages to the outside. And may be spaced apart from the bottom surface of the bottom surface 131b by a predetermined distance.

The upper grating 110 and the first filtration unit 120 are securely fastened to each other and finally the upper grating 110, the first filtration unit 120, and the filtration tank 130 are tightly fastened. And may further include a fixed frame 150 for supporting the robot.

The fixed frame 150 is provided between the first filtration unit 120 and the filtration tank 130 so as to receive the upper grating 110 and the flange portion 124 of the first filtration unit 120, 130). Also, for rigid fixation, the fixture 150 is preferably formed of a steel structure.

Meanwhile, the contaminant that has not passed through the first mesh part 121 can be removed by removing the upper grating 110. However, in order to easily remove contaminants that have not passed through the second mesh part 141, And a sedimentation tank 160 provided at the bottom of the inflow space 131a of the filtration tank 130.

The sedimentation tank 160 has a box shape with an open upper side and is detachably provided at the bottom of the inflow space 131a. The sidewall of the sedimentation tank 160 may have a height of less than half the height of the second filtration unit 140. If the sidewalls of the sedimentation tank 160 block the second mesh portion 141 as the second filtration portion of the second filtration unit 140, filtration performance and flow of the initial storm are disturbed.

Hereinafter, a state of use of the non-point pollution reduction apparatus 100 according to an embodiment of the present invention will be described.

5 is a use state diagram of the non-point pollution abatement apparatus 100 according to an embodiment of the present invention.

Referring to FIG. 5, once the ground surface has passed through the upper grating 110 with contaminants. Since the upper grating 110 has a relatively large lattice structure, contaminants having a predetermined size, for example, leaves, cigarette butts, dust, tire dust, etc., are introduced together with the initial storm.

The initial rainwater introduced into the nonpoint pollution abatement apparatus 100 of the present invention is introduced into the first mesh unit 121 through the guided inclined surface 122 or the tapered surface 123 formed in the first filtration unit 120 Relatively large contaminants that do not have a particle size, such as leaves, cigarette butts, etc., are primarily filtered.

Thereafter, the primary filtrate that has been primarily filtered flows into the filtration tank 130 and flows into the inflow space 131a defined by the second filtration unit 140. The introduced initial rainwater is received in the sedimentation tank 160 and then passed through the second filtration unit 140 and moved to the outflow space 131b when the height of the sedimentation tank 160 is greater than the sidewall height.

Of course, when the amount of rainfall is large, the water level becomes high without passing through the second mesh part 141. In this case, the initial stormwater can flow quickly onto the second filtration unit 140 to prevent overflow.

In the second filtration unit 140, anslasthite, zeolite, vermiculite, activated carbon, and the like are filtered to filter heavy metals and pollutants, so that the initial pollutants are clean and the pollutants can be removed. The initial clearance, from which contaminants have been removed, is received from the bottom surface of the outflow space 131b and is discharged to the outside through the overflow pipe 131 when the contaminant is received over the height of the overflow pipe 131.

Since the overflow pipe 131 is located at a predetermined height or higher, fine residual deposits in the initial storages received in the outflow space 131b can be filtered.

Therefore, according to the non-point pollution reduction apparatus of the present embodiment, the initial rainwater is effectively filtered three times or more in order from the upper grating, the first filtration member, and the second filtration member, So that it is possible to prevent the obstruction from blocking the overflow pipe and to supply the clean soil to the underground soil or the sewage pipe.

Other additional effects will be described later with the second embodiment.

(Second Embodiment)

Now, a non-point pollution reduction apparatus including a pretreatment rainwater receiver according to another embodiment of the present invention will be described with reference to Figs. 6 to 10. Fig.

6 is a cross-sectional view of a non-point pollution reduction apparatus including a pretreatment rainwater trap according to another embodiment of the present invention, FIG. 7 is an exploded perspective view of the nonpoint pollution reduction apparatus of FIG. 6, Fig. 9 is a process conceptual diagram of the non-point pollution abatement device of Fig. 6, and Fig. 10 is a detailed view of the variable second filtration unit of Fig.

The present invention comprises a filtration tank 230 as a body having a rectangular concrete structure and a first filtration unit 220 as a separation screen for separating contaminants and large granular materials contained in the effluent, And a second filtration unit 240 as a filter box for filtering the filter material to purify the filtration media.

The present invention relates to a non-point pollution abatement apparatus including a pretreatment rainwater collecting apparatus for purifying and infiltrating surface runoff water generated on the road side, wherein rainwater accelerated by the rainwater induction plates 222, 222 ' ), It is possible to use the separated rainwater as a pretreatment facility capable of treating the contamination degree and finally discharging it to the infiltration and storage facility by passing the separated rainwater through the filter box 240 containing the filter material.

In order to achieve the above object, the present invention provides a rainwater guiding plate having a rainwater guiding plate (222, 222 ') having a slope of 5 to 15 degrees to guide rainwater flowing from the upper part to the pre- A slope separation screen 230 having a slope of 30 to 60 占 of a structure for separating the granular material and rainwater flowing into the space of the rainwater purification section through the separation screen and having a slope at 4 to 5 o'clock direction, Point pipe 231 which is purified by passing through the box 240 and into which the purified rainwater flows into the infiltration facility and an outflow pipe connection 232 connected to the lower end of the contaminant rejection.

Preferably, the inside of the rainwater collector of this embodiment is divided into two spaces, namely, the rainwater rejection section and the rainwater purification section.

Preferably, the first filtration unit 220 includes a rainwater guide plate 222, 222 'for guiding the rainwater introduced from the upper portion to the pre-treatment rainwater collector, and a rainwater guide plate 222, (A plate having a slope in the direction of 4-5 o'clock in Fig. 6 to Fig. 8) 225 and a contaminant trapping screen (not shown) attached to the contaminant separating screen And a city bridging pipe connection part 232 through which the bricks and the like flow.

Preferably, the second filtration unit 240 includes a filtration box (not shown) including a filter medium (not shown) partitioned by the rainwater purification section partition plate 225 and capable of purifying the rainwater separated by the separation screen 221 241), and a sidewall pipe (231) for guiding the purified rainwater into the infiltration facility. At this time, a slider groove 241a is formed in the filter box 241 at an appropriate interval, and the filter space filter 242 is inserted into the slider groove in a sliding manner. , It is more preferable to have a variable shape so as to have an advantage that the filter and the filter material can be appropriately replaced at that time.

In addition, for example, the upper grating 210 is seated on the upper side of the rectangular frame-shaped fixed frame 250, which is a metal structure having a grating structure capable of protecting the rainwater structure and inflow of rainwater on the road surface. You can replace the grating.

The first filtration unit 220 is disposed inside and on the bottom of the fixed frame 250. The first filtration unit 220 is further provided with a flange portion 224 fixed to one side of the fixed frame 250, The rainwater guide plate 222 is provided to guide the surface run-off water to the contaminant separation screen 221 corresponding to the first filtration unit. Preferably, the second rainwater guide plate 222 'is provided on the other side of the fixed frame 250 to guide the surface runoff water to the contaminant separation screen 221 on the other side.

Acceleration is performed by inclined guide plates 222 and 222 'for guiding the rainwater introduced from the upper part to the pre-treatment rainwater basin, and accelerated rainwater is used for separating the contaminants and large granular materials And separates the rainwater and the contaminants by the inclined contaminant separation screen (221).

That is, the screen for separating contaminants is a separation screen for separating the contaminants contained in the effluent and the large granular substances, and separates roadside contaminants (such as waste, cigarette butts, leaves, sand, etc.) And guiding the rainwater into the space where the filtration tank 230 is located. The inclined screen causes the rainwater accelerated by the rainwater guiding plate to fall down by the gravity by the rainwater, while the obstruction filtered by the screen is sent to the obstacle processing unit 232a at the lower end of the inclined screen, , The lower end portion is connected to the city gutter through the connection pipe 232 of the city gutter to discharge the habitat of the insect caused by the continuous maintenance and the water gutter phenomenon. In other words, it is possible to process the contaminants at the same time as the manhole of the city gutter. Reference numeral 226 denotes a settling tank of the first filtration unit 220.

6 and 7, which are defined by the rainwater purifying section partition plate 225, are directed to the filtration tank 230 including the second filtration unit 240 A central inflow space 231a defined by the rainwater purification section partition plate 225 and the second filtration unit 230 and a second inflow space 231b defined by the rainwater purification section partition plate 225 and the second filtration unit 230, And an outflow space 231b located on the right side of Fig. 6 and Fig.

The second filtration unit 240 includes a filter media box 241 designed to selectively apply the filter media and the type and amount of filter media according to the degree of contamination of the applied space as described above do. That is, in order to apply various filter media, the aluminum filter 242 is fitted to the space dividing slider groove 241a (filter inserting frame) in the filter box 241 so as not to be mixed in the filter media, And screening of greasy and contaminants. That is, the filter media partition filter in the filter box functions to partition the space in order to selectively use the filter media according to the pollution degree and characteristics of the effluent to be treated, and also has a screen function by itself. That is, the filter 242 and the filtering material form a second filtering part corresponding to the first filtering part.

Finally, the filtration tank 230 has a flow-out space 231b and a flow-over pipe 231 as a ridge portion on the right side on the side of the outflow portion, and the inflow water processed in the variable- The treated water stagnated in the runner is discharged to the infiltration and storage facility or to the outside through the sidewall 231 formed on the side surface.

Now, referring to FIG. 9, a method of processing the road surface number will be described.

The non-point pollution abatement device 200 of the present invention has a fixed frame 250 and an upper grating 210 as concrete rain storm receiving structures to structurally solve an upper load of a road, Accelerated by the inclined guide plates 222 and 222 'for guiding to the first filtration unit 220 which is a pretreatment rainwater reservoir, and accelerated rainwater has a structure for separating contaminants and large granular materials Separates the rainwater and the contaminants by the inclined contaminant separation screen (221).

At this time, the separated contaminants are directly sent to the city gutters through the city gutters connecting section 232 located at the lower end of the side part, and the rainwater collected separately passes through the second filtration unit 240 including the filter box, Handles pollution.

The finally treated water is passed to the infiltration and storage facility through the overflow pipe 231 located on the side of the overflowing effluent space 231b.

At this time, the filter box can be selectively applied to correspond to the pollution degree by region or section, and is configured to be variable so that the pollution degree can be efficiently removed.

Therefore, according to the non-point pollution reduction apparatus of the second embodiment, the pollutants are allowed to escape into the urban stormwater conduit entirely, compared with the first embodiment, and the pollutants are more easily separated, And it is possible to supply clean rainwater to underground soil or sewage pipes.

As a result, according to the basic nonpoint pollution reduction apparatus of the present invention, since the initial rainwater is effectively filtered three times or more in order from the upper grating, the first filtration member, and the second filtration member in order of size, It is possible to prevent the phenomenon of blocking the overflow pipe, and it is possible to supply clean rainwater to the underground soil or the sewage pipe.

In addition, the first inclined portion 122 and the second inclined portion 123 'are formed so that the initial clearance can be more effectively guided toward the first filtration portion 121, It is possible to reduce the size of the display unit 121 (221).

The first filtration unit 221 is installed so as to be inclined and the contaminants filtered by the first filtration unit 221 are separated by the contaminant treatment unit 232a so that the treatment of the contaminants is easy and the contaminants treatment unit 232a Is connected to the city gutter through the city grate pipe connecting part 232, the processing of the grate can be further facilitated.

Particularly, the impurity treating section 232a and the inflow space 231a are distinguished by the rainwater purifying section partition plate 225. The rainwater purifying section partition plate 225 and the first filtering section 221 are opposed to each other The first inclined portion 222 is inclined at 5 to 15 degrees with respect to the horizontal direction and the first filtering portion 221 is inclined at an angle of 5 to 15 degrees with respect to the horizontal direction, And the rainwater purifying section partition plate 225 has an inclination of 120 to 150 degrees with respect to the horizontal direction, which is optimal for the treatment and management of the contaminants.

When the second filtration unit has a height lower than the height of the filtration tank and separates the inflow space and the outflow space of the filtration tank, it is preferable that the second filtration unit completely separates the before and after treatment from each other, In the case of very high storms, the additional effect is that flood water can be prevented from stagnating.

Furthermore, when the overflow pipe is provided on one side of the bottom surface of the outflow space, the clogging of the overflow pipe due to accumulation of fine dust passing through the second filtering apparatus can be minimized.

And a fixed frame (150; 250) provided between the first filtration unit and the filtration tank for receiving the upper grating and the flange portion of the first filtration unit and fixing the flange to the filtration tank, Device is possible.

In order to remove contaminants that have not passed through the second filtration unit of the filtration tank, when the filtration tank further includes a sedimentation tank 160 (226) provided at the bottom of the inflow space of the filtration tank, only the sedimentation tank is filtered to remove the deposited contaminants There is an additional effect that it is possible to easily remove the deposited contaminants by filtration.

Finally, the second filtration unit 240 may be configured to have a variable shape, so that the filtration member can be changed in accordance with the prosperity.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

(Embodiment 1)
100: Nonpoint pollution abatement device 110: Upper grating
120: first filtration unit 121: first mesh part
122: guiding inclined surface 123: tapered surface
124: flange portion 130: filtration tank
131: Wetting pipe 140: Second filtration unit
141: second mesh portion 150: fixed frame
160: settling tank
(Second Embodiment)
200: Nonpoint pollution abatement device 210: Upper grating
220: first filtration unit 221: first filtration unit
222, 222 ': Rainwater guide plate 224:
225: Rainwater purifying compartment partition plate 226: Settling tank
230: Filtration tank 231:
132: Excellent connector connection 240: Second filtration unit
241: Filter box 242: Filter space filter

Claims (12)

An upper grating (110; 210) exposed to the ground to introduce initial storms;
A first filtration unit (120; 220) provided below the upper grating and having a first filtration unit (121; 221) formed to primarily filter the introduced initial rainwater;
A filtration tank (130; 230) provided below the first filtration unit and containing an initial storm filtered by the first filtration unit;
The inside of the filtration tank is divided into an inflow space 131a (231a) for temporarily storing inflow water primarily filtered by the first filtration unit and an outflow space (131b; 231b) A second filtration unit (140; 240) formed to primarily filter the initial storm upon movement from the inflow space to the outflow space; And
And a drain pipe (131; 231) provided at one side of the outlet space for discharging the filtered initials to the outside of the filtration tank,
Wherein the mesh of the first filtration unit (120; 220) is larger than the mesh of the second filtration unit (140; 240). The method according to claim 1,
Wherein the first filtration unit has a first slope part for guiding an initial slope toward the first filtration part and a second slope part for guiding the initial slope toward the first filtration part. The method according to claim 1,
The non-point pollution reduction device according to claim 1, wherein the first filtration part (221) is installed so as to be inclined, and the contaminants filtered by the first filtration part (221) are separated into the impurity treatment part (232a). 3. The method of claim 2,
The second inclined portions 123 and 222 'are formed on the other surfaces of the first inclined portions 122 and 222 so that initial voids are more effectively guided toward the first filtering portions 121 and 221, Wherein the non-point pollution abatement device comprises: The method according to claim 1,
Wherein the second filtration unit has a height lower than the height of the filtration tank and divides the inflow space and the outflow space of the filtration tank. The method according to claim 1,
Wherein the drain pipe is provided on one side of the bottom surface of the outlet space spaced apart from the bottom surface by a predetermined distance. The method according to claim 1,
Further comprising a fixture (150; 250) provided between the first filtration unit and the filtration tank, for receiving the upper grating and the flange of the first filtration unit and fixing the flange to the filtration tank. The method of claim 3,
Wherein the contaminant processing unit (232a) is connected to the city gas pipeline through the city gas pipeline connection unit (232). The method according to claim 1,
Further comprising a sedimentation tank (160; 226) provided at the bottom of the inflow space of the filtration tank to remove contaminants that have not passed through the second filtration section of the filtration tank. The method of claim 3,
The contaminant treatment unit 232a and the inflow space 231a are distinguished by the rainwater purifying unit partition plate 225. The rainwater purifying unit partition plate 225 and the first filtering unit 221 are disposed in opposite directions Wherein the inclined surface is inclined. 11. The method of claim 10,
The first inclined portion 222 has an inclination of 5 to 15 degrees with respect to the horizontal direction and the first filtering portion 221 has an inclination of 30 to 60 degrees with respect to the horizontal direction, Wherein the partition plate (225) has an inclination of 120 to 150 degrees with respect to the horizontal direction. The method according to claim 1,
The second filtration unit (240)
A filter box 241 in which at least two slider grooves 241a are formed,
Two or more filter media separating filters 242 which are detachably fitted to the slider grooves 241a,
The filter media 242 filled between the filter media
Wherein the non-point pollution reduction device comprises:

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