KR101615356B1 - Non-point source contaminant treatment system - Google Patents

Abstract

According to an aspect of the present invention, provided is a non-point source pollutant treatment system including: a settling tank receives rainwater from a settling tank inflow pipe during rain; a plurality of filters which are supplied with the rainwater by being connected to the settling tank through a filter tank inflow pipe, and are connected and arranged horizontally, and can be connected in a separable type; a filter tank which comprises an air diffuser installed at a lower part of each filter to purify a filter medium accommodated in the filters and supplying air, and purifies the rainwater supplied from the settling tank by making the rainwater flow from the bottom to the top; a back washing water tank which is connected to the filter tank through a filter tank outflow pipe, is supplied with the rainwater purified in the filter tank, and is formed to perform back washing of the filter medium by supplying the purified rainwater to an upper part of the filters; and a recycling water tank which is connected to the back washing water tank through a back washing water tank outflow pipe, and sterilizes the purified rainwater supplied from the back washing water tank and then keeps the sterilized rainwater for recycling. The objective of the present invention is to provide a non-point source pollutant treatment system which can remove non-point source pollutants in the initial rainwater.

Description

[0001] NONPOINT SOURCE CONTAMINANT TREATMENT SYSTEM [0002]

The present invention relates to a non-point pollutant treatment system, and more particularly, to a non-point pollutant treatment system capable of removing non-point pollutants in the initial rainwater and capable of cleaning filter media, disinfecting the discharged water, To a possible non-point pollutant treatment system.

As is well known, pollutants can be generated from point pollutants discharged from distinct and limited point pollution sources such as domestic sewage, industrial wastewater and livestock wastewater, and agricultural products such as agricultural land, grassland, forest, construction site, mine, Non-point pollutants can be categorized into non-point pollutants, such as clippings, waste disposal sites, landfills, urban areas, roads, and industrial sites, where emissions are unspecified and emitted from a wide range of nonpoint pollution sources.

However, in the case of point pollutants, separate purification devices and wastewater treatment devices are installed in households, factories, and livestock farmers to purify pollutants to some extent. However, in the case of non-point pollutants, the discharge area is wide and remains mostly on the surface of the earth, and it becomes the main cause of water pollution due to the inflow of rainwater into public water or groundwater such as river.

On the other hand, Non-point pollutants can be classified into precipitable non-point pollutants, floating non-point pollutants, and soluble non-point pollutants. Precipitable non-point pollutants have a larger specific gravity than rainwater and settle. On the other hand, suspended non-point pollutants refer to such things as oil streaks and trees that are smaller in specific gravity than rainwater and float on top of it without being mixed with rainwater. Soluble non-point pollutants may be dissolved in rainwater. Since such non-point pollutants may enter the public waters such as rivers and groundwater as well as rainwater in the event of rain, it is important to prevent the initial rainwater from being directly introduced into public water bodies such as rivers and groundwater .

A related prior art is Korean Utility Model Registration No. 20-413946 (published on Apr. 26, 2006), which discloses a technique for a non-point pollutant treatment system.

It is an object of the present invention to provide a non-point pollutant treatment system capable of removing non-point pollutants in initial rain.

It is another object of the present invention to provide an air conditioner that can attenuate the flow rate into the sedimentation tank during the inflow of initial stormwater, separate and collect clogged matters, facilitate separation and installation of the filter, So that the backwashing efficiency can be further improved.

It is a further object of the present invention to provide a process for removing fine untreated contaminants from a filter, adsorbing and removing oil from the filtrate, disinfecting the treated water at the discharge of final treated water, System.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and other problems not mentioned here will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a non-point pollutant treatment system including: a sedimentation tank that receives rainwater through a sedimentation tank inflow pipe; A plurality of filters connected to the sedimentation tank through a filtration tank inlet pipe and supplied with stormwater from the sedimentation tank, horizontally connected and detachably connectable to the plurality of filters, A filtration tank having a diffuser installed separately at a lower portion thereof for supplying air and purifying the impurities supplied from the settling tank by flowing upward from below; A backwash water tank connected to the filtration tank through a filtrate outlet pipe to receive the purified rainwater from the filtration tank and to backwash the filter media by supplying clean water to the upper portions of the plurality of filters; And a recycling water tank connected to the backwash water tank through a backwash water tank outlet pipe and sterilizing the purified water supplied from the backwash water tank for storage for reuse.

At this time, it is preferable that the filtration tank inflow pipe is formed at a relatively lower position than the sedimentation tank inflow pipe, the filtrate tank outflow pipe, and the backwash water tank outflow pipe.

The sedimentation tank may further include a sedimentation tank drain pump installed at the bottom of the sedimentation tank; A stagnant water drain line for discharging the stagnant storm into the settling tank according to the operation of the settling tank drain pump; An inflow water collection pump installed at an interval from the sedimentation tank drainage pump, the inflow water collection pump being controlled to operate after a predetermined time elapses after stormwater flows into the sedimentation tank; And an influent water conveyance line for conveying the stormwater introduced into the sedimentation tank to the collection chamber inside the control panel by operation of the influent water collection pump.

The backwash water tank is installed on the bottom of the backwash water tank and is controlled to operate when the supply of air through the air diffuser is completed. A reverse water supply line in which an outlet is installed toward an upper portion of the plurality of filters to supply purified water stored in the backwash water tank to the upper portions of the plurality of filters according to an operation of the backwash pump; An effluent water collection pump installed at an interval from the backwash pump and controlled so as to operate after a set time has elapsed after the purified effluent flows into the backwash water tank; And an effluent conveyance line for conveying the purified storm stored in the backwash water tank to the collection room inside the control panel by operation of the effluent water collection pump.

The apparatus further includes a sedimentation tank flow rate attenuator installed to face the outlet of the sedimentation tank inflow pipe to attenuate the velocity of the stormwater flowing into the sedimentation tank.

The sedimentation tank flow rate damping device has a trapezoidal shape having a trapezoidal shape in which the upper end of the sedimentation tank flow-in pipe is disposed higher than the inner center of the sedimentation tank inflow pipe and is inclined so as to block at least half of the outlet of the sedimentation tank inflow pipe, Attenuator; A screen screen unit detachably coupled to a lower end of the flow velocity reduction unit; And a concave screen unit connected to the bottom screen of the weft screen unit to have the same width as the weft screen unit and having relatively small pores as compared with the weft screen unit, The contaminants contained in the storm can be collected through the detail screen unit, and when the detail screen unit is closed, the stormwater can be supplied to the settling tank through the screen screen unit.

Wherein the detail screen unit includes a door body having one side formed to be openable and closable by a hinge and having a locking means on the opposite side of the hinge; And a collection body housed inside the door body and coupled to the outside when the door body is opened, the upper surface being open and the bottom surface being hermetically sealed.

Wherein the plurality of filters are installed upright at a predetermined height from the bottom of the filtration tank and include a main body portion accommodating the filter material through an inner housing space and having a predetermined empty space at an upper portion of the housing space; A lower mesh member detachably coupled to a lower portion of the main body; An upper mesh member detachably coupled to the upper portion of the main body; And a gap holding member coupled to the bottom of the main body and connected to the bottom of the main body to adjust the height of the main body. Here, the filter material can be an artificial expanded clay made by heating and expanding ceramic filter media and natural clay at a high temperature. The inside of this filter material is porous structure and the exterior has a hard skin shape. This is excellent in durability, so it is excellent in filtration because it is spherical with less wear on backwashing.

In addition, the lower mesh member may be horizontally disposed inside the lower protrusion protruding from the lower end of the main body, and an inclined groove for introducing air may be formed between the lower end of the lower mesh member and the lower protrusion, The mesh member may be horizontally disposed inside the upper protrusion protruding from the upper edge of the main body, and a sloped groove for introducing water may be provided between the upper mesh member and the inner end of the upper protrusion.

The backwashing tank adsorbing device is provided at an inlet of the backwashing tank outlet pipe and adsorbs contaminants or oil that have not been treated in the cleaned wells. The backwashing tank adsorbing device is arranged to face the inlet of the backwashing tank outlet pipe An inclined expansion type adsorption member disposed at an upper end of the drainage pipe and having an upper end than an inner center of the drainage pipe and being inclined at an inlet of the drainage pipe; And side members connected to both sides of the inclined expansion type adsorption member and screwed to the backwash water tank.

The inclined expansion type adsorption member may include a first adsorption network for removing the contaminants in the purified water supplied to the reusing water tank through the backwash water outflow pipe; An oil adsorption foam which is laminated on the inside of the first adsorption net and adsorbs oil in the purified oil which has passed through the first adsorption net; And a second adsorption net disposed on the inside of the oil adsorbing cloth and having pores smaller in size than the first adsorption net to remove the final suspended particulate matter remaining in the purified outflow, The side wall member has a pore having the same size as that of the first adsorption net, and the inclined expansion type adsorbing member is disposed between the side wall member and the side wall member, So that it can be mounted in a sliding manner.

According to the present invention, there is an advantage that the non-point pollutants in the initial pore can be removed.

Furthermore, it is advantageous to attenuate the flow rate into the sedimentation tank during the inflow of the initial storm and to separate and collect impurities.

Further, it is possible to separate and mount the filter, thereby facilitating maintenance, and it is possible to uniformly supply air from the air diffuser to further improve the backwashing efficiency.

Furthermore, it is possible to remove untreated microbubbles from the filter as well as to remove oil, and disinfect the treated water at the discharge of the final treated water, thereby being reusable as landscaping water or cleaning water, thus being environmentally friendly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of a non-point pollutant treatment system according to an embodiment of the present invention; FIG.
FIGS. 2 to 4 are diagrams for explaining a settler flux damping apparatus according to an embodiment of the present invention.
5 and 6 are views illustrating a filter according to an embodiment of the present invention.
7 to 11 are views illustrating a backwash water tank adsorption apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

In the drawings, FIG. 1 is an overall structural view of a non-point pollutant treatment system according to an embodiment of the present invention, FIGS. 2 to 4 are views for explaining a settler flow decay screen according to an embodiment of the present invention, FIGS. 5 and 6 are views for explaining a filter according to an embodiment of the present invention, and FIGS. 7 to 11 are views illustrating a backwash water tank adsorption screen according to an embodiment of the present invention.

Hereinafter, a non-point pollutant treatment system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a non-point pollutant treatment system 100 according to an embodiment of the present invention includes a settling tank 110, a filtration tank 130, a backwash water tank 150, and a reusing water tank 170.

The sedimentation tank 110 receives the rainwater through the sedimentation tank inflow pipe 111 shown in FIG.

The filtration tank 130 is connected to the sedimentation tank 110 through a filtration tank inflow pipe 131 and can receive supernatant from the sedimentation tank 110.

The filtration unit 130 includes a plurality of filters 300 connected horizontally and detachably connectable to each other and a plurality of filter units 300 connected to the lower portions of the plurality of filters 300 to clean the filter media accommodated in the plurality of filters 300. And an air diffuser 133 installed to supply air. Accordingly, the storm supplied from the sedimentation tank 110 can be flowed from below to purify.

The backwash water tank (150) is connected to the filtration tank (130) through the filtrate outflow pipe (151). Accordingly, the backwash water tank 150 can receive the purified water from the filtration tank 130. Specifically, after the air is supplied by the air diffuser 133, the plurality of the filters 300, The plurality of filters 300 can be cleaned.

The recycling water tank 170 may be connected to the backwash water tank 150 through the backwash water tank outlet pipe 171. The sanitizing water supplied from the backwash water tank 150 may be sterilized through the chlorination device 500. The sterilized water may be sterilized water, And the like. For this purpose, a discharge pump 173 may be installed in the reusable water tank 170, and the water disinfected by the operation of the discharge pump 173 may be supplied to a required place through a discharge drain line 175 .

1, the filtration tank inflow pipe 131 is located at a relatively low position relative to the sedimentation tank inflow pipe 111, the filtrate tank outflow pipe 151 and the backwash water tank outflow pipe 171 As shown in FIG.

The sedimentation tank 110 includes a sedimentation tank drainage pump 113 installed at the bottom of the sedimentation tank 110 and a drainage pump 112 installed at the bottom of the sedimentation tank 110 in accordance with the operation of the sedimentation tank drainage pump 113. [ And a stagnant water drain line 114 for discharging the stagnant water.

The sedimentation tank 110 may include an inflow water collection pump 115 and an inflow water transfer line 116.

For example, the inflow water collection pump 115 may be spaced apart from the sedimentation tank drain pump 113, and may be controlled to operate after a set time has elapsed after stormwater has flowed into the sedimentation tank 110. Here, the set time means a time required to fill the height of the sedimentation tank 110 by a predetermined height from the bottom, and is not limited to a specific time.

The inflow water transfer line 116 transfers the storm introduced into the sedimentation tank 110 to the collection chamber in the control panel 190 by operation of the inflow water collection pump 115. The control panel 190 ) Allows automatic control of the internal system.

The backwash water tank 150 includes a backwash pump 153 and a backwash water supply line 154.

The backwash pump 153 is installed on the bottom of the backwash water tank 150 and is controlled to be operated when the supply of air through the air diffuser 133 is completed. This is because air is supplied from the air diffuser 133 to clean the filter media, and then purified water (ie, reverse water) is supplied from the backwash water tank 150 to improve filtration efficiency.

The backwash water supply line 154 is connected to the upper portion of the plurality of filters 300 so that the purified water storages stored in the backwash water tank 150 are supplied to the upper portions of the plurality of the filters 300 according to the operation of the backwash pump 153. And may be branched toward the top of the filter 300.

The backwash water tank 150 may further include an effluent water collection pump 155 and an effluent water transfer line 156.

The effluent water collection pump 155 is spaced apart from the backwash pump 153 and may be controlled to operate after a set time has elapsed after the purified effluent has flowed into the backwash water tank 150. Here, the set time means a time required to fill the height from the bottom of the backwash water tank 150 by a predetermined height, and is not limited to a specific time.

The effluent transfer line 156 serves to transfer the purified effluent stored in the backwash water tank 150 to the collection tank in the control panel 190 by the operation of the effluent water collection pump 155.

The non-point pollutant treatment system 100 according to an embodiment of the present invention further includes a settler flow attenuator 200 installed in the settling tank 110. The sedimentation tank flow rate reduction device 200 is provided facing the outlet of the sedimentation tank inflow pipe 111 and serves to attenuate the flow rate of stormwater introduced into the sedimentation tank 100. In addition, it provides a function that allows you to collect the contamination primarily.

Referring to FIGS. 2 to 4, the apparatus for attenuating sedimentation flow 200 includes a flow velocity reducing unit 210 disposed at an upper end thereof, a weft screen unit 220 disposed at a lower portion thereof, And a screen unit 230.

Specifically, the flow rate attenuator 210 is inclined so that the upper end of the flow velocity attenuation unit 210 is positioned higher than the center of the inner wall of the sedimentation tank inflow pipe 111 to block the outlet of the sedimentation tank inflow pipe 111 by more than half, It is preferable to have a trapezoidal shape in which the lateral width decreases as the distance increases.

2) is formed to be larger than the lower end 200b (see FIG. 2), and the upper end 200a (see FIG. 2) The length L1 of the left and right widths has an expanded shape compared to the length L2 of the bottom left and right widths. As shown in FIG. 4, the longitudinal length L3 of the upper end of the flow velocity reducer 210 may be formed to be longer than the longitudinal length L4 of the lower end and be inclined. However, the present invention is not limited thereto.

The flow velocity attenuator 210 is provided in a trapezoidal shape with an upper end positioned higher than the center of the inner wall of the sedimentation tank inflow pipe 111 and blocking the outlet of the sedimentation tank inflow pipe 111 by more than half. (111), and it is possible to reduce the flow rate by dispersing the flow of the storm. The flow rate reduction phenomenon of this excellent can minimize the loss head and can maximize the sedimentation effect.

The screen screen unit 220 may be detachably coupled to the lower end of the flow velocity reduction unit 210. The screen screen unit 230 may be installed at a lower end of the screen screen unit 220, The left and right widths can be connected to each other.

Specifically, the weft screen unit 220 and the detail screen unit 230 may be formed of a member having a flat surface formed on the flat surface, unlike the flow velocity reducing unit 210. Preferably, the flat screen 230, May be formed in a smaller size than the screen screen unit 220.

Accordingly, when the rainwater flows through the flow velocity attenuation unit 210 in a state where the flow velocity is attenuated, the contaminants contained in the rainwater can be collected through the refractory screen unit 230. If the hole of the detail screen 230 is blocked by the obstacle, the hole of the block screen 220 may be larger than the hole of the detail screen 230 so that the flow of the storm can be continuously maintained. .

For example, the detailed screen 230 may include a door body 231 having one side connected to the hinge 235 to be opened and closed and a locking means 237 provided on the opposite side of the hinge 235, And a collection body 233 housed in the door body 231 and coupled to the exterior of the door body 231 when the door body 231 is opened, the upper surface of the door body 231 being open and the bottom surface of the door body 231 being hermetically sealed. .

Further, a hole may be formed in the door body 231, and a pore may be formed in the collection body 233 except for the bottom surface. When the collection body is accumulated in the collection body 233, The door body 231 may be opened to discharge the contaminants accumulated in the collection body 233 to the outside so as to be separated and collected.

5 and 6, the filter 300 according to the embodiment of the present invention can confirm a specific shape.

5 and 6, the plurality of filters 300 include a main body 310, a lower mesh member 320, an upper mesh member 330, and a gap holding member 350.

The main body 310 may be installed upright at a predetermined height from the bottom of the filtration tank 130 at an interval. That is, the plurality of body portions 310 may be installed on the bottom of the filtration tank 130 (see FIG. 1) with the lower space of the same height. In addition, each of them can accommodate the filter material through the inner housing space, and it is preferable that a certain empty space having a predetermined height is provided on the upper part of the housing space in which the filter material is accommodated.

Here, the filter material can be an artificial expanded clay made by heating and expanding ceramic filter media and natural clay at a high temperature. The inside of this filter material is porous structure and the exterior has a hard skin shape. This is excellent in durability, so it is excellent in filtration because it is spherical with less wear on backwashing.

The reason for providing a certain empty space in the upper part of the accommodation space in which the filter material is accommodated is that when the air is supplied from the air diffuser 133, .

The lower mesh member 320 may be detachably coupled to the lower portion of the main body 310 and the upper mesh member 330 may be detachably coupled to the upper portion of the main body 310.

The gap holding member 350 may be coupled with a connection screw 355 at a lower portion of the main body 310. Preferably, the gap holding member 350 may include a connection screw 355 that can adjust the height of the main body 310, And a height adjusting support portion 353 coupled to the bottom of the filtration tank 130 and seated on the bottom of the filtration tank 130.

Specifically, the lower mesh member 320 may be horizontally disposed inside the lower protrusion 313 protruding from the lower end of the body 310. At this time, the lower mesh member 320, The lower end projecting portion 313 may be further provided with an inclined groove forming portion 314 for introducing air into between the inner end portions thereof. The air supplied from the air diffuser 133 due to the inclination of the air inlet inclined groove forming part 314 flows to the inside of the main body part 310 to maximize the air cleaning efficiency. Although the illustrated bar is shown as having an inclined groove, it may be formed as a round groove.

The upper mesh member 330 may be installed horizontally from the inside of the upper protrusion 311 protruding from the upper edge of the main body 310. The upper mesh member 330 and the upper protrusion 311 may be further provided with an inclined groove forming part 312 for introducing water.

The water supplied from the backwash water tank 150 (see FIG. 1) is smoothly flowed inward from the upper end of the main body 310 by the inclination of the water inlet inclined groove forming portion 312, thereby maximizing the water washing efficiency .

Meanwhile, according to an embodiment of the present invention, the backwash water tank absorbing device 400 may include a backwash water outflow pipe 171 to absorb the untreated contaminants or oil in the purified water.

Referring to FIGS. 7 to 10, the backwashing tank adsorption apparatus 400 includes an inclined expansion type adsorption member 410 and a side member 420.

The inclined expansion type adsorption member 410 may be installed to face the inlet of the backwash water tank. Further, the upper end of the outlet pipe 171 (see FIG. 1) may be disposed higher than the inner center of the outlet pipe 171 (see FIG. 1) so that the outlet of the backwash water tank outlet pipe 171 (see FIG. 1) may be obliquely intercepted. The inclined shape may have an effect of increasing the specific surface area, and the effect of removing contaminants and oil remaining in the cleaned storages stored in the backwash water tank 150 may be improved.

The side member 420 may be connected to both sides of the inclined expansion type adsorption member 410 and may be screwed to the backwash water tank 150 (see FIG. 1). Specifically, a wall fixing bracket 430 may be further formed along both sides of the side member 420, and a wall fixing screw 450 may be fastened to the wall of the backwash water tank 150 through the wall fixing bracket 430 .

More specifically, as shown in FIG. 8, the inclined expansion type adsorption member 410 includes a first adsorption net 411, a second adsorption net 413, and an oil adsorption bubble 415 having different functions And the like.

The first adsorption net 411 may be configured to remove the contaminants in the purified air supplied to the reusing water tank 170 through the backwash water outlet pipe 170 and to remove the contaminants in the purified air, So that the oil can be smoothly introduced into the oil adsorbing cloth 415.

The oil adsorbing batt 415 is stacked on the inner side of the first adsorption net 411 and adsorbs and removes the oil in the purified net which has passed through the first adsorption net 411. This can be in the form of a replaceable sheet, but is not limited to a specific material.

The second adsorption net 413 is stacked on the opposite side of the first adsorption net 411 with the oil adsorbing batt 415 interposed therebetween, To remove the remaining suspended solids remaining in the cleaned rainwater. The oil adsorbing bubble 415 may be fixed together with the first adsorption net 411 so that the oil adsorbing bubble 415 may be maintained in a well-opened state.

Fig. 11A is an enlarged view of the first adsorption net 411 in an exemplary form. Fig. 11B is an oil adsorption bubble 415, Fig. 11C is a second adsorption net 413, . As can be seen from this, it can be seen that the first adsorption net 411 has a larger pore than the second adsorption net 413.

More preferably, the first adsorption net 411 and the second adsorption net 413 are detachable, so that the oil adsorption can 415 can be replaced.

In addition, the side member 420 may have pores having the same size as the first adsorption net 411, but the present invention is not limited thereto.

The inclined expandable adsorbing member 410 may be slidably coupled in an inclined direction through an end of the side member 420. Accordingly, the replacement can be simplified and the cleaning and maintenance can be facilitated.

As described above, according to the structure and function of the present invention, there is an advantage that the non-point pollutants in the initial pore can be removed.

Further, when the initial storm is introduced, the flow velocity entering the settling tank is attenuated, and the impurities can be separated and collected.

Furthermore, it is possible to separate and mount the filter, which facilitates maintenance, and can even improve the backwashing efficiency by supplying air evenly from the air diffuser.

Furthermore, it is possible to remove minute untreated contaminants from the filter as well as to remove oil, and disinfect the treated water at the time of discharge of the final treated water, so that it can be reused as landscape water or cleaning water.

Although the present invention has been described with respect to specific embodiments of the non-point pollutant treatment system, it is apparent that various modifications may be made without departing from the scope of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are not to be construed in a limiting sense, and the scope of the present invention is indicated by the appended claims rather than by the foregoing description, All changes and modifications that come within the spirit and scope of the appended claims are intended to be embraced therein.

100: Non-point pollutant treatment system
110: settling tank 111: settling tank inflow pipe
113: Settling tank drainage pump 114: Congestion drainage line
115: Influent water collection pump 116: Influent water transfer line
130: Filtration tank 131: Filtration tank inflow pipe
133: Difficulty device 150: Backwaters water tank
151: Filtration tank outlet pipe 153: Backwash pump
154: Reverse osmosis water supply line 155: Effluent water collection pump
156: Effluent transfer line 170: Reuse tank
171: backwash tank outlet pipe 173: discharge pump
175: discharge drain line 190: control panel
191: Collection
200: Settling tank flow rate attenuator
210: flow velocity reduction unit 211: inclined wall fixing bracket
220: knitting screen portion 213: connecting screw
221: Straight wall fixing bracket 230: Detail screen part
231: Door body 233: Collection body
235: Hinge 237: Locking means
250: Wall fixing screw
300: filter
310: main body 311: upper protrusion
312: inclined groove forming part for water inflow 313: bottom protrusion
314: air inlet inclined groove forming part 315:
320: lower mesh member 330: upper mesh member
350: spacing member 351: connecting screw
353: height adjusting base portion 355: connecting screw
400: Backwash water tank adsorption unit
410: an inclined expansion type adsorption member 411: a first adsorption network
413: second adsorption net 415: oil adsorption bag
420: side member 430: wall fixing bracket
450: Wall fixing screw

Claims (10)

A sedimentation tank that receives rainwater through the sedimentation tank inflow pipe; A plurality of filters connected to the sedimentation tank through a filtration tank inlet pipe and supplied with stormwater from the sedimentation tank, horizontally connected and detachably connectable to the plurality of filters, A filtration tank having a diffuser installed separately at a lower portion thereof for supplying air and purifying the impurities supplied from the settling tank by flowing upward from below; A backwash water tank connected to the filtration tank through a filtrate outlet pipe to receive purified water from the filtration tank and to supply purified water to the upper portion of the plurality of filters to backwash the filter material; And a recycling water tank connected to the backwash water tank through a backwash water tank outlet pipe and sterilizing purified water supplied from the backwash water tank for storage and reuse,
The filtration tank inflow pipe is formed at a relatively lower position than the sedimentation tank inflow pipe, the filtrate tank outflow pipe, and the backwash water tank outflow pipe,
The settling tank includes a settler tank drain pump installed at the bottom of the settling tank; A stagnant water drain line for discharging the stagnant storm into the settling tank according to the operation of the settling tank drain pump; An inflow water collection pump installed at an interval from the sedimentation tank drainage pump, the inflow water collection pump being controlled to operate after a predetermined time elapses after stormwater flows into the sedimentation tank; And an inflow water transfer line for transferring the stormwater introduced into the sedimentation tank to the collection tank inside the control panel by operation of the inflow water collection pump, wherein the backwash water tank is installed on the bottom of the backwash water tank, A backwash pump controlled to operate when the air supply is completed; A reverse water supply line in which an outlet is installed toward an upper portion of the plurality of filters to supply purified water stored in the backwash water tank to the upper portions of the plurality of filters according to an operation of the backwash pump; An effluent water collection pump installed at an interval from the backwash pump and controlled so as to operate after a set time has elapsed after the purified effluent flows into the backwash water tank; And an effluent conveyance line for conveying the purified storm stored in the backwash water tank to the collection room inside the control panel by the operation of the effluent water collection pump,
And a backwash water tank adsorption device installed at an inlet of the backwash water tank and adapted to adsorb contaminants or oil that have not been treated in the cleaned wells, wherein the backwash water tank adsorption device is installed facing the inlet of the backwash water tank, An inclined expansion type adsorption member having an upper end positioned higher than an inner center of the backwash water tank outflow pipe and being sloped at an inlet of the backwash water tank outflow pipe; And a side member connected to both sides of the inclined expandable adsorption member and screwed to the backwash water tank, wherein the inclined expansion type adsorption member is disposed in the cleaned up well, A first adsorption net for preliminary removal of the adsorbent; An oil adsorption foam which is laminated on the inside of the first adsorption net and adsorbs oil in the purified oil which has passed through the first adsorption net; And a second adsorption net disposed on the inside of the oil adsorbing cloth and having pores smaller in size than the first adsorption net to remove the final suspended particulate matter remaining in the purified outflow, The side wall member has a pore having the same size as that of the first adsorption net, and the inclined expansion type adsorbing member is disposed between the side wall member and the side wall member, And a structure capable of being mounted in a sliding manner through an end portion of the non-point pollutant processing system.
delete delete The method according to claim 1,
And a sedimentation tank flow rate attenuating device installed to face the outlet of the sedimentation tank inflow pipe to attenuate the flow rate of the stormwater flowing into the sedimentation tank.
5. The method of claim 4,
The settler flow rate attenuation apparatus comprises:
A flow attenuator having a trapezoidal shape in which an upper end of the sedimentation tank inflow pipe is disposed higher than an inner center of the sedimentation tank inflow pipe so that the sedimentation tank inflow pipe is inclined so as to block at least an outlet of the sedimentation tank inflow pipe,
A screen screen unit detachably coupled to a lower end of the flow velocity reduction unit; And
And a detailed screen unit connected to the bottom screen of the weft screen unit to have the same width as the weft screen unit and having a relatively small perforation compared to the weft screen unit,
When the flow rate is attenuated through the flow rate attenuating unit and the storm is introduced, the contaminants contained in the storm are collected through the detailed screen unit, and when the detailed screen unit is blocked, the stormwater is supplied to the settling tank through the screen unit Characterized by a nonpoint pollutant treatment system.
6. The method of claim 5,
The above-
A door body having one side connected to the hinge and openable and closable, and a locking means provided on the opposite side of the hinge; And
A non-point pollutant treatment system which is housed inside the door body and is pulled out to the outside when the door body is opened, the upper surface of the door body being opened and the bottom surface being closed;
The method according to claim 1,
The plurality of filters may include:
A main body installed upright at a predetermined height from the bottom of the filtration tank and accommodating the filter material through the inner housing space and having a predetermined empty space at an upper portion of the housing space;
A lower mesh member detachably coupled to a lower portion of the main body;
An upper mesh member detachably coupled to the upper portion of the main body; And
And a gap holding member coupled to the bottom of the main body and connected to the bottom of the main body to adjust the height of the main body.
8. The method of claim 7,
Wherein the lower mesh member is horizontally disposed inside the lower protruding portion protruding from the lower end of the main body portion and between the lower end of the lower mesh member and the inner end of the lower protruding portion,
Wherein the upper mesh member is horizontally installed inside the upper projection protruding from the upper edge of the main body portion and between the upper mesh member and the inner end of the upper projection, .
delete delete

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