KR101738952B1 - Polymer poly ethylene filter treatment apparatus of rainwater - Google Patents

Polymer poly ethylene filter treatment apparatus of rainwater Download PDF

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Publication number
KR101738952B1
KR101738952B1 KR1020150185943A KR20150185943A KR101738952B1 KR 101738952 B1 KR101738952 B1 KR 101738952B1 KR 1020150185943 A KR1020150185943 A KR 1020150185943A KR 20150185943 A KR20150185943 A KR 20150185943A KR 101738952 B1 KR101738952 B1 KR 101738952B1
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KR
South Korea
Prior art keywords
rainwater
water
filter
pipe
tank
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Application number
KR1020150185943A
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Korean (ko)
Inventor
조인구
장인환
Original Assignee
주식회사 레인솔루션
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Priority to KR1020150185943A priority Critical patent/KR101738952B1/en
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Publication of KR101738952B1 publication Critical patent/KR101738952B1/en

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4807Handling the filter cake for purposes other than regenerating
    • B01D24/4815Handling the filter cake for purposes other than regenerating for washing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/105Accessories, e.g. flow regulators or cleaning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2221/00Applications of separation devices
    • B01D2221/12Separation devices for treating rain or storm water
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30Flood prevention; Flood or storm water management, e.g. using flood barriers

Abstract

The present invention relates to a rainwater treatment device, capable of improving filtering performance of a filter tank with a polymer polyethylene (PE) filter by enabling rainwater in which foreign substances of large particles are filtered to flow into the filter tank with the PE filter after filtering the foreign substances of the large particles, which are contained in the rainwater flowing from the ground and the rainwater flowing inside by being discharged from a rainwater drainpipe of a building roof and a rooftop. The rainwater treatment device includes: the filter tank with the polymer PE filter, which filters the rainwater flowing inside from a rainwater intake pipe by enabling the rainwater to pass through a polymer PE filter unit and discharges the filtered rainwater through a first grade water discharge pipe by locating the filtered rainwater in the upper part, wherein the filter tank with the polymer PE filter enables backwash water passing through the polymer PE filter unit to be collected in the lower part; a rainwater aeration tank; a water supply pump connected to a rainwater discharge pipe and supplying water through a water supply pipe; a backwash water transfer unit connected to the outside of the filter tank with the polymer PE filter to be connected to the lower part of the filter tank with the polymer PE filter and transferring the backwash water collected in the lower part of the filter tank with the polymer PE filter to a soil pipe; and a control unit controlling a ring blower, a precipitate discharge pump, the water supply pump, and the backwash water transfer unit. The rainwater aeration tank includes: the first grade water discharge pipe of the filter tank with the polymer PE filter, which is connected to the upper part; a diffuser unit installed in the lower part of the inside and generating air bubble by being connected to the ring blower in the outside and enabling air to flow inside; the rainwater discharge pipe formed in the lower part; and the precipitate discharge pump formed in the lower part of the inside and connected to a soil pipe connection pipe discharging a precipitate containing moisture to the soil pipe.

Description

TECHNICAL FIELD [0001] The present invention relates to a rainwater treatment apparatus using a polymeric PE filter,

The present invention relates to a rainwater treatment apparatus using a polymeric PE filter, and more particularly, to a rainwater treatment apparatus using a polymer PE filter. More particularly, the present invention relates to a rainwater treatment apparatus using a polymer PE filter, To a rainwater treatment apparatus which can improve the filtration performance of a polymer PE filter filtration tank by introducing rainwater filtered with large particles into a polymer PE filter filtration tank.

In Korea, due to the nature of rainfall, the rain is gathering as much rain as it is in the summer, and a dam is being constructed for use in winter and spring drought. Although construction of such dams is inevitable, there are problems such as money and time, environmental problems, occurrence of flooded areas, and the like.

In order to solve this problem, there has been known a rainwater treatment reuse apparatus in which rainwater tanks are made in schools, public facilities and apartment houses to collect rainwater, store the rainwater in a rainwater tank, and use the stored water as toilet water or landscape water.

Accordingly, the present invention relates to a rainwater treatment and recycling apparatus, which is an improvement of the conventional rainwater treatment and recycling apparatus. First, as an example of a conventional rainwater treatment and recycling apparatus, Korean Patent Registration No. 1555447 entitled "Rainwater Treatment and Utilization Device" Device ") is as follows.

The conventional rainwater treatment and use device includes a water collecting part for discharging initial rainwater and collecting rainwater from the rainwater to be collected, a storage part for receiving the rainwater collected in the water collecting part and precipitating foreign substances contained in the rainwater, A control unit for opening and closing the recycling water pipe so that the rainwater can be recycled and stored in the storage unit, and a recycling water pipe connected to the recycling water pipe, which is opened and closed by the control unit, And a tap water supply pipe for supplying tap water to the water supply pipe.

However, in the conventional rainwater treatment and use apparatus configured as described above, the supernatant of superior quality stored in the reservoir is used for toilet water, landscape water, etc., but the oil component, which is the non-point pollutant contained in the rainwater, is not removed.

Therefore, the conventional rainwater treatment and use apparatus has a problem that odor of the oil component is generated in the toilet due to use of the rainwater containing the oil component as toilet water, and there is a problem that pollution of the soil is caused by using the oil component- .

Korean Patent No. 1555447 entitled "Rainwater treatment and utilization device" (2015.09.07.)

Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The object of the present invention is to remove the coarse floats, oil components and precipitated solids contained in rainwater through a polymer PE filter filtration tank, and then remove the coarse floats, the oil components and the precipitated solids, And to provide a rainwater treatment apparatus using a polymeric PE filter capable of being used.

It is another object of the present invention to provide a polymer PE filter tank capable of rapidly discharging backwash water by transferring backwaters to the bottom of a filtration tank of a polymer PE filter to a civil sewer pipe to prevent backflow of rainwater to the ground And a rainwater treatment apparatus using the PE filter.

It is another object of the present invention to provide a method and apparatus for filtering fine particles contained in rainwater filtered through a polymer PE filter filtration through a rotatable fiber filter disk to remove fine particles contained in rainwater, And a rainwater treatment device using a polymeric PE filter that can be used for cleaning a toilet.

It is another object of the present invention to provide a polymer PE filter filtration apparatus for filtering a large amount of foreign matter contained in rainwater discharged from a rainwater drain pipe such as a building roof or a roof, The present invention provides a rainwater treatment apparatus using a polymer PE filter capable of improving filtration performance of a PE filter filtration tank.

Another object of the present invention is to provide a rainwater disposal apparatus using a polymer PE filter capable of being installed in a small space by having a polymer PE filter filtration tank, a rainwater aeration tank, and various devices together inside the main body.

According to an aspect of the present invention, there is provided a rainwater treatment system comprising: a rainwater inflow pipe for passing rainwater through a polymeric PE filter unit and filtering the rainwater; A polymer PE filter filtration unit for filtering the reverse water having passed through the polymer PE filter unit to the lower part; The upper portion of the polymer PE filter filtration tank communicates with an upper portion of the filtration tank. The lower portion of the polymer PE filter tank is connected to an outer ring brush to generate air bubbles. A rainwater aeration tank having a sediment discharge pump connected to a drainage pipe for discharging sediment containing water to the drainage pipe; A water supply pump connected to the rainwater discharge pipe to supply water through the water supply pipe; A water retention conveying means connected to the outside of the polymer PE filter filtration tank in communication with a lower portion of the polymer PE filter filtration tank and transferring reverse water collected at a lower portion of the polymer PE filter filtration tank to a civil sewage pipe; And an operation control unit for controlling the ring brush, the sediment discharge pump, the water supply pump, and the reverse water transfer means.

The polymer PE filter filtration tank of the "rainwater treatment apparatus" according to the present invention is provided at the upper part of the inside of the polymer PE filter filtration tank and at the center of the lower part thereof there is provided a reverse water drain pipe having an electric valve connected to the operation control unit And a small amount of foreign matter contained in the rainwater is collected and removed through the polymer PE filter unit, and the oil component contained in the rainwater is removed from the rainwater, A filtration water tank to be adsorbed and removed; And a reverse osmosis collecting tank provided at a lower portion of the inside of the washing water collecting tank and communicating with the reverse osmosis water conveying means.

In addition, the filtering water tank of the "rainwater treatment system" according to the present invention is provided on the other side of the rear side, and the rainwater flows into the upper part through the rainwater inflow pipe. On one side, Joe; A rainwater inflow tank provided at one side of the screen tank to remove a large amount of foreign matter and to receive the removed rainwater and forming a rainwater discharge hole in the lower part of the front side; The rainwater flowing from the rainwater discharge hole is passed through from the lower part to the upper part of the rainwater inflow tank, and the small particles contained in the rainwater are trapped and removed, the oil component contained in the rainwater is adsorbed and removed, A polymer PE filter unit having the reverse water discharge pipe; And a rainwater collecting tank having a supersonic water discharge pipe through which the supernatant having passed through the polymeric PE filter unit flows and the supernatant is discharged to only the supernatant to the rainwater aeration tank.

The polymer PE filter unit of the rainwater treatment apparatus according to the present invention comprises a filtering water tank provided with the reverse water drainage pipe at a lower portion thereof and a water supply pipe provided in the filtering water tank so as to be spaced apart from the lower portion, A plurality of polymer PE filter media filled in the pore chamber; and a plurality of polymer PE filter media pierced through the inside of the filtering water tank and supplied with backwash water to the outside, And a backwash water pipe for backwashing the PE filter media.

The reverse water washing conveying means of the rainwater treatment apparatus according to the present invention may further comprise a reverse water drainage pipe connected to the lower portion of the reverse ointment collection tank and connected to the operation control portion, A reverse osmosis water transfer pump, at least one reverse osmosis water transfer pipe connected to at least one reverse osmosis water transfer pump, each of which is provided with a reverse osmosis opening / closing hydraulic valve connected to the operation control unit, And a backwash water connection pipe connected to the backwash water transfer pipe.

Further, the "rainwater treatment apparatus" according to the present invention is characterized in that fine particles contained in the rainwater filtered by the polymer PE filter filtration tank provided between the above-mentioned water discharge pipes are filtered again through the rotating fiber filter disk, And a disk filter filter for moving the disk filter.

Further, the disk filter filtration tank of the " rainwater treatment system "according to the present invention includes a filtration storm water collection tank having the upper water discharge pipe for moving the upper water to the rainwater aeration tank; And a frame frame provided on the upper part of the filtering rainwater collecting water tank and having an upper portion higher than the water surface of the upper water surface, wherein a cover for preventing the upper part of the rainwater from being scattered is provided on the upper part of the frame frame, Wherein a rotating hollow tube to which an upper water discharge pipe drawn out from the polymer PE filter filtration tank is connected is rotatably supported by a motor connected to the operation control unit and the inside of the rotating hollow tube is connected to the rotating hollow tube And a disk filter portion communicating with the disk filter portion to filter the fine particles of the rainwater, the disk filter portion having a plurality of fiber filter disks arranged at front and back intervals.

Further, the filtration storm water collecting tank of the "rainwater treatment apparatus" according to the present invention further comprises at least one reverse osmosis pump connected to the operation control unit, and water is introduced into the reverse osmosis pump through the water inflow pipe, And a plurality of reverse water spray tubes for spraying the water onto the outer surface of the filter disk to backwash the fiber filter disk.

Further, the rainwater treatment apparatus of the "rainwater treatment apparatus" according to the present invention is provided between the lower part of the rainwater drain pipe provided in the building and the rainwater inlet pipe, and the rainwater drain pipe and particles contained in the rainwater flowing in from the ground And a foreign matter processing unit for filtering rainwater having a large particle size and filtering the large foreign matter into the polymer PE filter tank.

Further, the foreign matter processing means of the " rainwater treatment apparatus "according to the present invention is provided with a grating lowered at the bottom thereof, a grating having a central hole at its upper portion, A manhole to which the rainwater inflow pipe is connected so as to communicate with the rainwater inflow pipe; An enlargement extending portion formed to extend downward from a lower portion of the rainwater drain pipe and penetrating the center hole and protruding to the lower portion of the grating; A plurality of pebbles disposed in the circumference of the manhole and disposed on the periphery of the enlarged extension portion, and filled with pebbles for filtering large foreign matter contained in rainwater flowing into the grating, A chamber; A filter net provided at an upper portion of the grating to slope downward in a direction from the one side to the other side to filter out large particles contained in the rainwater discharged from the rainwater drain pipe; And an exhaust hole provided directly above the other side of the filter net to discharge rainwater containing large foreign particles remaining on the upper portion of the filter net to an upper portion of the grating.

The chlorine supply pipe is connected to the chlorine storage tank. The chlorine supply pipe is connected to the chlorine storage tank. The chlorine supply pipe is connected to the operation control unit at the upper part of the rainwater aeration tank of the " .

Further, the rainwater aeration tank of the "rainwater treatment apparatus" according to the present invention is further provided with a constant supply pipe connected to the water supply.

The air diffuser of the rainwater treatment apparatus according to the present invention further includes a main supply pipe connected to the ring brush and drawn into a lower portion of one side of the aeration tank and a main branch pipe arranged long in the longitudinal direction at the lower end of the main supply pipe, And a plurality of branch pipes arranged in the left and right direction at a predetermined interval in the main branch pipe and having a plurality of air injection nozzles at the upper portions thereof.

Further, a "rainwater treatment apparatus" according to the present invention includes a main body having a rectangular parallelepiped shape; The rainwater inflow pipe is installed at an upper portion of the one side wall and the water supply pipe is formed at a lower portion of the front wall. A partition wall in which the polymer PE filter unit is provided at the rear of the inside and a ring brush, a reverse water transfer pump, and a water supply pump are installed at a lower portion of the partition; And a rainwater aeration tank formed on the other side of the main body and having a manhole at an upper portion thereof.

According to the present invention constructed as described above, the coarse float, the oil component and the precipitated solids are removed through the polymer PE filter filtration tank, and the coarse float, the oil component and the precipitated solids are removed, and the rainwater is aerated to be used as water for landscape, So that the soil can be prevented from being contaminated when used as landscaping water, and the smell of oil can be prevented from occurring in the water when it is used as toilet water or cleaning water.

In addition, the present invention is capable of promptly discharging backwash water by transferring backwater water filled in the lower part of the polymer PE filter filtration tank to the civil sewer pipe, thereby preventing instantaneous backflow of rainwater to the ground when it rains, There is also an effect of providing a rainwater treatment apparatus which secures stability.

The present invention also relates to a method for filtering fine particles contained in rainwater filtered in a polymer PE filter filtration through a rotatable fiber filter disk to remove fine particles contained in rainwater by filtering again, There is also an effect that can be used.

The present invention also provides a polymer PE filter filtration apparatus for filtering a large amount of foreign matter contained in rainwater discharged from a rainwater drain pipe such as a building roof or a roof, The filtration performance of the filter can be improved.

The present invention also provides a rainwater treatment apparatus capable of achieving a high treatment effect even in a small volume by providing a polymer PE filter filtration tank, a rainwater aeration tank, and various devices together in a main body, There is also an effect.

1 is a schematic structural view showing a rainwater disposal apparatus according to the present invention.
2 is an enlarged view of a polymer PE filter tank constituting the present invention,
2A is a cross-sectional view,
2B is a perspective view showing a filtration water tank,
FIG. 2C is a cross-sectional view taken along the line AA in FIG. 2B,
FIG. 2D is a sectional view taken along line BB of FIG. 2B.
3 is an enlarged cross-sectional view of a foreign matter processing means constituting the present invention.
4 is a plan view showing a rainwater disposal apparatus according to the present invention.
5 is a sectional view taken along line CC of Fig.
FIG. 6 is a block diagram of a disc filter filtration tank constituting the present invention,
6A is a perspective view showing the diaphragm filter unit,
6B is a cross-sectional view taken along line DD of Fig. 6A.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a schematic configuration diagram showing a rainwater disposal apparatus according to the present invention. 2B is a perspective view showing a filtration water tank, FIG. 2C is a sectional view taken along the line AA in FIG. 2B, FIG. 2D is a sectional view taken along the line AA in FIG. 2B is a sectional view taken along line BB of Fig. 4 is a plan view showing a rainwater disposal apparatus according to the present invention, and Fig. 5 is a cross-sectional view taken along the line C-C of Fig. 4. As shown in Fig.

As shown in the drawing, the rainwater treatment apparatus according to the present invention includes a polymer PE filter filtration tank 2 for collecting and removing foreign matters which are nonpoint pollutants contained in rainwater flowing into a rainwater inflow pipe 21, A rainwater aeration tank 3 for allowing the rainwater filtered in the polymer PE filter filtration tank 2 to flow and aeration; a water supply pump 5 for supplying rainwater discharged from the rainwater aeration tank 3 to landscaping water, toilet water or cleaning water; (6) for transferring backwaters collected at the lower portion of the polymer PE filter filtration tank (2) to the civil sewer pipe (20), and an operation control unit (not shown) for controlling the apparatus.

The polymer PE filter filtration tank 2 filters the rainwater introduced from the rainwater inflow pipe 21 through the polymer PE filter unit 233 and performs filtration processing so that the filtered rainwater is positioned on the upper side, And the backwash water passing through the polymer PE filter unit 233 is collected to the lower part.

The polymer PE filter filtration tank 2 having such a function includes a filtration water tank 23 provided at the upper part of the interior and a reverse water collection tank 24 provided at the lower part of the interior.

And a reverse water discharge pipe 233c having an electric valve 233d connected to the operation control unit is provided at the center of the lower portion of the filtration water tank 23. In the inside of the filtration water tank 23, a large foreign matter contained in the rainwater is filtered on the screen 231a, and a small foreign matter contained in the rainwater is collected and removed through the polymer PE filter unit 233 The oil component contained in the rainwater is adsorbed and removed. In addition, the electric valve 233d is opened when rainwater having a large amount of rainwater is discharged, and is kept closed when the rainwater is purified.

More specifically, the filtration water tank 23 is provided on the other side of the rear side of the filtration water tank 23 so as to remove large foreign substances, small foreign substances, and oil components contained in the rainwater, and the rainwater flows into the upper part through the rainwater inflow pipe 21 A screen tank 231 provided with a screen 231a for filtering out large particles contained in rainwater on one side of the screen tank 231 and a rainwater disposed on one side of the screen tank 231, A rainwater inflow tank 232 in which a rainwater discharge hole 232a is formed at a lower portion and a rainwater inflow hole 232a provided in front of the rainwater inflow tank 232 and passing through the rainwater discharge hole 232a, A polymer PE filter unit 233 for collecting and removing small particles contained in rainwater, an oil component contained in rainwater being adsorbed and removed, and a reverse water discharge pipe 233c provided at a lower part thereof; ) Receiving the excessive influx supernatant above, it is most preferably composed of only the discharged supernatant to rainwater collecting tank 234, in which the supernatant discharge pipe 22 is provided for moving to the rain water aeration tank 3.

The polymer PE filter unit 233 includes a filtering water tank F provided with a water discharge pipe 233c at a lower portion thereof and a filtering water tank F disposed around the filtering water tank F so as to be spaced apart from the lower portion, A plurality of polymer PE filter media 233b filled in the pore chamber 233a and a plurality of polymer PE filter media 233b filled in the pore chamber 233a, And a backwash water pipe P for backwashing the polymer PE filter filter media 233b. The polymer PE filter filter material 233b collects and removes small particles, which are nonpoint pollutants contained in rainwater, and adsorbs and removes oil components contained in the rainwater. The polymer PE filter filter material 233b Various kinds of pipes are known in the form of pipe or sphere. In order to improve the filtration performance, it is preferable that the applicant uses the polymer filter of Korean Patent Registration No. 1135968, which is a registrant.

In addition, the reverse segregation collecting tank 24 serves to collect backwash water while the electromotive valve 233d is opened. The reverse segregation water collecting tank 24 is provided in the lower part of the inside of the polymer PE filter filtration tank 2, (6).

Meanwhile, the rainwater inflow pipe 21 is provided at its middle with an inflow / outflow control valve 211 connected to the operation control unit.

1 and 4 and 5, the rainwater aeration tank 3 constituting the present invention is constructed such that air is introduced into a rainwater aeration tank 3 to augment the rainwater, It is a role to play.

The rainwater aeration tank 3 having such a function is provided in such a manner that the upper water discharge pipe 22 of the polymer PE filter filtration tank 2 communicates with the upper portion thereof and is connected to the outer ring brush 4 at the lower portion thereof, A rainwater discharge pipe 36 is provided at a lower portion to be led out to the outside and a drain pipe connection pipe 321 for discharging a sediment containing moisture to a drain pipe at an inner lower portion thereof, It is preferable that the connected sediment discharge pump 32 is provided.

The air diffuser 31 includes a main supply pipe 311 connected to the ring brush 4 to be supplied to the lower portion of one side of the aeration tank so as to supply air to the inside of the rainwater aeration tank 3 as a whole, A plurality of air injection nozzles 314 are arranged in the left and right direction in the left and right direction at an interval in the main branch pipe 312, It is most preferable that the branch pipes 313 are provided.

A chlorine supply pipe 33 provided with a metering pump 331 connected to the operation control unit in the middle so as to sterilize the rainwater by inputting chlorine into the rainwater aeration tank 3 at the upper part of the rainwater aeration tank 3, And the chlorine supply pipe 33 is preferably connected to the chlorine storage tank 34. [ The rainwater aeration tank 3 may further include a water supply pipe 35 connected to the water supply unit so as to supply a constant water to the rainwater aeration tank 3 if necessary.

On the other hand, the water supply pump 5 is connected to the outside portion of the rainwater discharge pipe 36 so that the purified water filled in the rainwater aeration tank 3 can be used as landscaping water, toilet water or cleaning water. The water supply pump 5 is preferably connected to the water supply pipe 51 so as to transfer the purified water to a required place.

1 and FIGS. 4 and 5, the reverse water washing means 6 constituting the present invention comprises a lower portion of the polymer PE filter filtration tank 2 and a lower portion of the polymer PE filter filtration tank 2, And serves to transfer the circulating water collected at the lower portion of the polymer PE filter filtration tank 2 to the civil sewage pipe 20 in communication therewith.

The reverse water washing means 6 has a reverse water discharge pipe 61 connected to a lower portion of the reverse ointment collection tank 24 and connected to the reverse water discharge pipe 61, And a reverse osmosis opening / closing valve (631) connected to the at least one reverse osmosis conveying pump (62) and connected to the operation control unit, the at least one reverse osmosis conveying pump And a reverse water connection pipe (64) connected to at least one reverse oily water conveying pipe (63) and connected to the civil sewer pipe (20).

Therefore, the present invention is capable of rapidly discharging the reverse wastewater by transferring the reverse water filled in the lower portion of the polymer PE filter filtration tank 2 to the civil sewage pipe 20 through the reverse water transfer means 6. Therefore, the present invention is capable of rapidly discharging the reverse water through the reverse water transfer means 6, thereby preventing instantaneous backflow of the rainwater on the ground during the heavy rain.

The operation control unit serves to entirely control the rainwater disposal apparatus according to the present invention. The operation of the ring brush 4, the sediment discharge pump 32, the water supply pump 5, And so on.

1 and 3, the rainwater treatment apparatus according to the present invention includes a rainwater drainage pipe 10 and a rainwater drainage pipe 20 disposed between a lower portion of the rainwater drainage pipe 10 provided in a building and the rainwater inflow pipe 21, And a foreign matter treatment means 7 for filtering rainwater into which the particles contained in the rainwater flowing from the ground are filtered to introduce large amounts of foreign matter into the polymer PE filter filtration tank 2.

The foreign matter treatment unit 7 includes a grating 711 having a lower portion recessed downwardly from a lower portion of the rainwater drainage pipe 10 provided in the building and between the rainwater inflow pipe 21 and having a central hole at an upper portion thereof And a manhole 71 is formed at a side portion thereof to be connected to the rainwater inflow pipe 21 so as to communicate with each other.

The foreign matter processing unit 7 includes an enlargement extension unit 72 extending downward from the lower part of the rainwater drainage pipe 10 and extending through the center hole and protruding to the lower portion of the grating 711, A circumferential gravel net chamber 73 which is seated in the circumferential extension groove 712 of the upper portion of the manhole 71 and is disposed around the enlarged extension 72 and is filled with gravel and is made of net, A filter network 74 provided on the upper part of the grating 711 inside the extension part 72 so as to be inclined downward from one side to the other side; 74) for discharging rainwater containing large foreign matter remaining on the upper part of the grating (711).

The pebbles filled in the circumferential gravel netting chamber 73 serve to filter large foreign particles contained in the rainwater flowing into the grating 711. The filter net 74 provided in the extension pipe 72 serves to filter large particles contained in the rainwater discharged from the drain pipe.

Therefore, the foreign matter processing means 7 removes foreign matter having a large particle size while the rainwater discharged from the rainwater drain pipe 10 such as a building roof or a roof passes through the filter net 74. When the amount of the rainwater discharged from the rainwater drainage pipe 10 is large, the rainwater passes through the discharge hole 75 formed in the expansion pipe extension 72 through the grating 711, The rainwater flowing into the inside of the grating 711 is passed through gaps (gaps) formed between the gravels, and foreign matter having large particles contained in the rainwater is filtered by the gaps. In addition, foreign matter having a large particle size included in the rainwater flowing into the grating 711 from the ground is also filtered while passing through the peripheral gravel net chamber 73.

Therefore, in the present invention, after a large foreign matter contained in rainwater discharged from a rainwater drain pipe (10) such as a building roof or a roof is first filtered through the foreign matter treatment means (7) Can be introduced into the polymer PE filter filtration tank (2). Therefore, according to the present invention, the filtration performance of the polymer PE filter filtration tank 2 can be further improved by introducing the rainwater filtered by the foreign matter processing means 7 into the polymer PE filter filtration tank 2 There is also an advantage.

4 and 5, the rainwater treatment apparatus according to the present invention includes a main body 1 having a rectangular parallelepiped shape so as to be installed even in a small space such as the ground or the ground, And a rainwater aeration tank 3 formed on the other side of the main body 1.

The compartment 11 is formed at one side of the main body 1 through a partition wall and has a manhole at an upper portion thereof. The rainwater inflow pipe 21 is installed at an upper portion of the side wall, It is preferable that the water supply pipe 51 is formed to be drawn out from the lower part of the body. The polymer PE filter filtration tank 2 is provided at the rear of the inside of the division room 11 and the ring brush 4, the reverse water transfer pump 62, the water supply pump 5, . In addition, the rainwater aeration tank 3 is formed on the other side of the main body 1, and a manhole is preferably provided on the upper side.

Therefore, according to the present invention, the polymeric PE filter filtration tank 2, the rainwater aeration tank 3, and various devices are provided in the body 1 formed of a rectangular parallelepiped, so that the rainwater treatment apparatus according to the present invention can be installed in a small It is possible to provide a rainwater treatment apparatus capable of achieving a high treatment effect even in a small volume.

Hereinafter, the operation of the rainwater disposal apparatus according to the present invention will be described.

1 to 5, the operation of the rainwater treatment apparatus according to the present invention will be described. First, the rainwater discharged from the rainwater drain pipe 10 installed in the building is supplied to the foreign matter treatment unit 7 And passes through the filter net 74 to filter out foreign matter having large particles contained in the rainwater through the filter net 74. In the course of the rainwater discharged to the rainwater drainage pipe 10 passing through the expansion pipe extension 72, a part of the rainwater passes through the discharge hole 75 formed on the other side of the expansion pipe extension 72, Through the grating 711 covering the upper part of the manhole 71. In addition, rainwater on the surface of the ground also flows through the grating 711.

The rainwater flowing through the grating 711 passes through the peripheral gravel netting chamber 73 constituting the foreign matter processing means 7 and the rainwater passes through a manhole 71 And foreign matter having large particles contained in the rainwater is filtered by the surrounding gravel netting chamber 73. Therefore, rainwater flowing into the inside of the manhole 71 constituting the foreign matter disposal means 7 has foreign substances with large particles removed.

The rainwater having a large particle-removed foreign matter introduced into the manhole 71 flows into the screen tank 231 of the polymer PE filter filtration tank 2 through the rainwater inflow pipe 21, 231a, and then flows into the rainwater inflow bath 232. The rainwater flowing into the rainwater inflow tank 232 passes through the rainwater discharge hole 232a, flows into the lower portion of the polymeric PE filter portion 233, and passes in the upper direction from the lower portion of the polymeric PE filter portion 233 . The rainwater flowing into the polymer PE filter unit 233 passes through the inside of the polymer PE filter unit 233 and the oil component contained in the rainwater is adsorbed and removed by the polymer PE filter filter media 233, Small solids are collected and removed in the polymeric PE filter media 233. The rainwater passing through the polymer PE filter unit 233 and having the oil component and the small solid particles removed is moved to the upper portion of the filtration water tank 23 and the reverse water is discharged to the lower portion of the filtration water tank 23 And collected in the reverse segregation collection tank 24.

The filtered supernatant passing through the polymer PE filter unit 233 is collected by the rainwater collecting tank 234 and the upper water level of the rainwater collecting tank 234 is supplied to the rainwater aeration tank 3 through the upper water discharge pipe 22. [ And the rainwater flowing into the rainwater aeration tank 3 is aerated by the air injected through the air injection nozzles 314 provided in the lower part of the rainwater aeration tank 3 so that decomposition of the organic matter of the rainwater contained in the rainwater .

The water supply pump 5 connected to the lower portion of the rainwater aeration tank 3 is operated to use the purified rainwater in the rainwater aeration tank 3 as a landscape water, a toilet water or a cleaning water.

Therefore, the present invention is to remove the oil component contained in the rainwater and the solid matter having a small particle size through the polymer PE filter filtration tank (2), and then the rainwater having the oil component and the small particle- It can be used as water. Therefore, the present invention can prevent soil pollution when purified rainwater is used as a landscape water, and is useful for preventing smell of oil in water when used as toilet water or cleaning water.

delete

FIG. 6 is a perspective view of a disk filter filtration tank constituting the present invention, FIG. 6A is a perspective view showing a disposing filter unit, and FIG. 6B is a sectional view taken along line D-D in FIG. 6A.

1 and 6, the rainwater treatment apparatus according to the present invention includes fine particles contained in the rainwater filtered by the polymer PE filter filtration tank 2 disposed between the supersonic water discharge pipe 22 And a disk filter filtration tank 8 for re-filtering through a rotating fiber filter disk 823 to the rainwater aeration tank 3.

The disk filter filtration tank 8 includes a filtration stormwater collecting tank 81 provided with the supersonic water discharge pipe 22 for moving supersonic water to the upper portion of the stormwater aeration tank 3, And a disk filter unit 82 for filtering the fine particles again and moving the fine particles to the rainwater aeration tank 3.

The disk filter unit 82 includes a frame frame 821 provided at the upper part of the filtering rainwater collecting water tank 91 and having an upper portion higher than the water surface of the upper portion.
The disk filter unit 82 includes a cover 821a for preventing the upper part of the frame frame 821 from scattering on the upper side of the frame frame 821 and a cover 821a for covering the inside of the frame frame 821, A configuration in which a rotating hollow pipe 822 to which a supersonic water discharge pipe 22 drawn out from the polymer PE filter filtration tank 2 is connected is rotated by a motor 822a connected to the operation control unit and a structure in which the rotating hollow pipe 822 And a plurality of fiber filter discs 823 which communicate with the rotating hollow pipe 822 to filter the fine particles of rainwater are provided at a distance in the front-to-rear direction.

The filtration rainwater collecting water tank 81 further includes at least one reverse osmosis pump 83 connected to the operation control unit for backwashing the fiber filter disk 823, It is preferable to further include a plurality of reverse water spray tubes 831 for introducing water through the water inlet tube and spraying the water on the outer surface of the fiber filter disk 823 to backwash the fiber filter disk 823.

Therefore, according to the present invention, fine particles contained in the rainwater filtered in the polymer PE filter filtration tank 2 are passed through the rotatable fiber filter disk 823 through the disk filter filtration tank and are filtered again, It is a useful invention that can purify rainwater by removing particles to be used for cleaning the toilet.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the invention defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: Body
11: Compartment
2: Polymer PE filter filtration tank
21: Rainwater inflow pipe
211: Flow-in shut-off valve
22:
23: Filtration tank
231: Screen tank, 231a: Screen, 232: Rainwater inflow tank,
232a: Rainwater discharge hole, 233: Polymer PE filter part,
F: filtering water tank, 233a: pore chamber,
233b: Polymer PE filter filter material, 233c: Reverse osmosis water pipe,
233d: electric valve, 234: rainwater collecting tank
24: Reverse sea water collection tank
P: Filter backwash water pipe
3: Rainwater aeration tank
31:
311: main supply pipe, 312: main branch pipe, 313: branch pipe,
314: Air injection nozzle
32: Sediment discharge pump
321: Sewer pipe connector
33: Chlorine supply pipe
331: metering pump
34: Chlorine storage tank
35: Constant supply pipe
36: Rainwater discharge pipe
4: Ringblower
5: Water supply pump
51: Water supply pipe
6: Reverse transfer
61: Reverse water drainage pipe
62: Reverse transfer pump
63: Station for transferring sewage water
631: Stationary switch valve
64: Reverse transfer line connection pipe
7: Foreign matter processing means
71: Manhole
711: Grating, 712: Perpendicular expansion groove
72: extension extension part
73: perimeter gravel net chamber
74: filter network
75: discharge hole
8: Disc filter filtration tank
81: Filtration rainwater collection tank
82: Disk filter section
821: frame frame, 821a: cover, 822: rotating hollow tube,
822a: motor, 823: fiber filter disk
83: Reverse water pump
831: station taxi breaker
10: Rainwater drainage pipe
20: Excellence in civil engineering

Claims (14)

The rainwater flowing from the rainwater inflow pipe 21 is passed through the polymeric PE filter unit 233 and filtered to allow the filtered rainwater to be positioned on the upper side and discharged through the upper water discharge pipe 22, 233) to be collected at the lower part of the filtration tank (2);
An upper outlet pipe 22 of the polymer PE filter filtration tank 2 communicates with an upper portion of the filtration tank 2 and an outlet pipe portion 31 connected to the outer ring brush 4 to generate air bubbles, A rainwater discharge pipe 36 is provided at a lower portion thereof and a drainage pump 32 connected to a drainage pipe 321 for discharging sediment containing moisture to the drainage pipe is connected to the lower portion of the rainwater discharge pipe 36, An aeration tank 3;
A water supply pump 5 connected to the rainwater discharge pipe 36 for supplying water through the water supply pipe 51;
A polymer PE filter filtration tank 2 is connected to the outside of the polymer PE filter filtration tank 2 so as to communicate with the lower part of the polymer PE filter filtration tank 2 to transfer backwaters collected at the lower part of the polymer PE filter filtration tank 2 to a civil sewage pipe 20 Conveying means (6);
An operation control unit for controlling the ring brush 4, the sediment discharge pump 32, the water supply pump 5, and the reverse water transfer means 6;
/ RTI >
The polymer PE filter filtration tank (2)
And a reverse water discharge pipe 233c provided at an upper portion of the inside of the polymer PE filter filtration tank 2 and having a motorized valve 233d connected to the operation control unit at the center of the lower part thereof. A small foreign matter contained in the rainwater is collected and removed through the polymer PE filter portion 233 and the oil component contained in the rainwater is adsorbed and removed A filtration water tank 23;
A reverse osmosis collection tank 24 provided at a lower portion of the circulation water collection means and connected to the reverse osmosis water transfer means 6;
And a rainwater collecting device for collecting rainwater.
delete The method according to claim 1,
The filtration water tank (23)
A screen tank (231) provided on the other side of the rear and having a screen (231a) through which rainwater flows into the upper part through the rainwater inflow pipe (21) and one side of which is screened with foreign particles of large particles contained in rainwater;
A rainwater inflow tank 232 provided at one side of the screen tank 231 and through which a large amount of foreign matter is filtered to introduce removed rainwater and a rainwater discharge hole 232a is formed at a lower portion of the screen tank 231;
The rainwater introduced from the rainwater discharge hole 232a passes through the upper part of the rainwater inflow vessel 232 and is collected from the lower part of the rainwater inflow hole 232a. A polymer PE filter unit 233 having a reverse water discharge pipe 233c at a lower portion thereof;
A rainwater collecting tank 234 having a supersonic water discharge pipe 22 through which the supernatant having passed through the polymer PE filter unit 233 flows and the supernatant is discharged to the rainwater aeration tank 3 only at an upper portion thereof;
And a rainwater collecting device for collecting rainwater.
The method of claim 3,
The polymeric PE filter unit 233,
A filtering water tank F having a reverse water discharge pipe 233c at a lower portion thereof,
A pouring chamber 233a which is provided inside the filtering water tank F so as to be spaced apart from the lower part and is surrounded by a perforated plate to allow rainwater to pass therethrough,
A plurality of polymeric PE filter media 233b filled in the pore chamber 233a,
A backwash water pipe P which passes through the inside of the filtering water tank F and is supplied with backwash water from the outside to backwash the polymer PE filter filter media 233b,
And a rainwater collecting device for collecting rainwater.
The method according to claim 1,
The reverse water transfer means (6)
A reverse water drain pipe (61) drawn out to communicate with the lower portion of the reverse oily water collecting tank (24)
One or more reverse osmosis transfer pumps (62) connected to the reverse water discharge pipe (61) and connected to the operation control unit,
One or more reverse oily water conveyance pipes 63 connected to the at least one reverse oily water conveyance pump 62 and each having a reverse oily opening / closing valve 631 connected to the operation control unit,
A reverse water connection pipe 64 connected to at least one reverse oily water conveyance pipe 63 and connected to the civil sewage pipe 20,
And a rainwater collecting device for collecting rainwater.
The method according to any one of claims 1, 3, 4, and 5,
The rainwater treatment apparatus includes:
A disk filter disposed between the supersonic water discharge pipes to filter fine particles contained in the rainwater filtered by the polymer PE filter filtration tank 2 through a rotatable fiber filter disk 823 and to transfer the fine particles to the rainwater aeration tank 3 A filtration tank 8;
Further comprising: a rainwater collecting device for collecting rainwater from the rainwater collecting device.
The method according to claim 6,
The disk filter filtration tank (8)
A filtering rain water collecting water tank (81) having the upper water discharge pipe (22) for moving the upper water to the rain water aeration tank (3);
And a frame frame 821 provided at an upper portion of the filtering rainwater collecting water tank 91 and having an upper portion higher than the water surface of an upper water level. The upper portion of the frame frame 821 is provided with a cover And a rotary hollow pipe 822 to which an upper water discharge pipe 22 connected to the polymer PE filter filtration tank 2 is connected is connected to the inside of the frame frame 821, And a fiber filter disk 823 for filtering the fine particles of rainwater is connected to the rotary hollow pipe 822 around the rotary hollow pipe 822 to be rotated by the motor 822a connected to the front and rear A disk filter portion 82 provided at a plurality of intervals with an interval;
And a rainwater collecting device for collecting rainwater.
8. The method of claim 7,
The filtering rainwater collecting water tank 81 further includes at least one reverse osmosis pump 83 connected to the operation control unit,
The reverse osmosis pump 83 is provided with a plurality of reverse water discharge tubes 831 for introducing water through the water inlet pipe and injecting water onto the outer surface of the fiber filter disk 823 to backwash the fiber filter disk 823 And a rainwater collecting device for collecting rainwater.
The method according to any one of claims 1, 3, 4, and 5,
The rainwater treatment apparatus includes:
And is installed between the lower part of the rainwater drainage pipe 10 provided in the building and the rainwater inflow pipe 21 and filters large foreign particles contained in the rainwater flowing into the rainwater drainage pipe 10 from the ground, A foreign matter processing means (7) for introducing rainwater filtered by the foreign matter into the polymer PE filter filtration tank (2);
Further comprising:
10. The method of claim 9,
The foreign matter processing means (7)
A grating 711 having a center hole is covered at its upper portion and a circumferential expansion groove 712 extending outwardly is formed around the upper portion of the grill 711. The rainwater inflow pipe 21 A manhole 71 communicably connected thereto;
An enlargement extension part 72 formed to extend downward from the lower part of the rainwater drainage pipe 10 and penetrate through the center hole and protrude to the lower part of the grating 711;
Is disposed in the circumferential enlargement groove 712 of the upper portion of the manhole 71 and is disposed around the enlargement extension portion 72 and filters large foreign particles contained in the rainwater flowing into the grating 711 A circumferential gravel net chamber 73 made of net and filled with gravel;
A filter network (not shown) provided on the upper part of the grating 711 inside the enlarged pipe extension part 72 so as to be inclined downwardly from one side in the other direction to filter out large particles contained in the rainwater discharged from the rainwater drainage pipe 10 74);
A discharge hole 75 provided immediately above the other side of the filter net 74 and discharging rainwater containing large foreign particles remaining on the filter net 74 to the upper portion of the grating 711;
And a rainwater collecting device for collecting rainwater.
The method according to any one of claims 1, 3, 4, and 5,
A chlorine supply pipe 33 having a metering pump 331 connected to the operation control unit is provided at an upper portion of the rainwater aeration tank 3,
And the chlorine feed pipe (33) is connected to the chlorine storage tank (34).
The method according to any one of claims 1, 3, 4, and 5,
And a water supply pipe (35) connected to the water supply is further provided on the upper part of the rainwater aeration tank (3).
The method according to any one of claims 1, 3, 4, and 5,
In the above-described embodiment,
A main supply pipe 311 connected to the ring brush 4 and drawn into a lower portion of one side of the aeration tank,
A main branch pipe 312 extending in the longitudinal direction at the lower end of the main supply pipe 311,
A plurality of branch pipes 313 disposed in the main branch pipe 312 in the left-right direction at a predetermined distance in the longitudinal direction and having a plurality of air injection nozzles 314 at their upper portions,
And a rainwater collecting device for collecting rainwater.
6. The method of claim 5,
The rainwater treatment apparatus includes:
A main body 1 having a rectangular parallelepiped shape;
The rainwater inflow pipe (21) is installed in the upper part of the one side wall and penetrates the rainwater inflow pipe (21) through the partition wall. The polymer PE filter filtration tank 2 is provided at the rear of the interior of the filtration tank 51 and the ring brush 4, the reverse water transfer pump 62, the water supply pump 5 A partitioning chamber 11 in which a partition wall 11 is installed;
A rainwater aeration tank 3 formed at the other side of the main body 1 and having a manhole at an upper portion thereof;
And a rainwater collecting device for collecting rainwater.
KR1020150185943A 2015-12-24 2015-12-24 Polymer poly ethylene filter treatment apparatus of rainwater KR101738952B1 (en)

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KR101866474B1 (en) * 2018-01-25 2018-06-11 환경시설관리 주식회사 Non-point pollution treatment device with improved water quality
KR101866475B1 (en) * 2018-01-25 2018-06-11 환경시설관리 주식회사 Non-point polution reducing system for preventing load
KR20190001032A (en) * 2017-06-26 2019-01-04 박지운 Collecting well for back flow and bad smell protection and nonpoint pollution fitering
KR102136957B1 (en) * 2019-12-31 2020-07-22 주식회사 지이테크 Backwash type non-point pollution reduction apparatus with multi-stage stacked filter

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KR101151242B1 (en) * 2011-10-28 2012-06-07 주식회사 동호엔지니어링 Rainwater treatment apparatus
KR101249012B1 (en) * 2012-12-28 2013-04-03 (주)대성그린테크 Lckl-1 system
KR101412530B1 (en) * 2013-12-17 2014-07-02 (주)지원이엔에스 Underground rainwater utilization facilities

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KR20190001032A (en) * 2017-06-26 2019-01-04 박지운 Collecting well for back flow and bad smell protection and nonpoint pollution fitering
KR101956452B1 (en) * 2017-06-26 2019-06-24 박지운 Collecting well for back flow and bad smell protection and nonpoint pollution fitering
KR101866474B1 (en) * 2018-01-25 2018-06-11 환경시설관리 주식회사 Non-point pollution treatment device with improved water quality
KR101866475B1 (en) * 2018-01-25 2018-06-11 환경시설관리 주식회사 Non-point polution reducing system for preventing load
KR102136957B1 (en) * 2019-12-31 2020-07-22 주식회사 지이테크 Backwash type non-point pollution reduction apparatus with multi-stage stacked filter

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