KR101555447B1 - Rainwater treatment and utilizing equipment - Google Patents

Rainwater treatment and utilizing equipment Download PDF

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Publication number
KR101555447B1
KR101555447B1 KR1020140179611A KR20140179611A KR101555447B1 KR 101555447 B1 KR101555447 B1 KR 101555447B1 KR 1020140179611 A KR1020140179611 A KR 1020140179611A KR 20140179611 A KR20140179611 A KR 20140179611A KR 101555447 B1 KR101555447 B1 KR 101555447B1
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South Korea
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rainwater
water
supply pipe
tap water
pipe
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KR1020140179611A
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Korean (ko)
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이승진
신민용
허태준
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신민용
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    • 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
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rainwater treatment and utilization apparatus using rainwater, and more particularly, to a rainwater treatment and utilization apparatus that can remove pollutants from rainwater collected from roofs and legs of a building and use the same as recycled water for domestic water and landscape water .

Figure R1020140179611

Description

Technical Field [0001] The present invention relates to rainwater treatment and utilization equipment,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rainwater treatment and utilization apparatus using rainwater, and more particularly, to a rainwater treatment and utilization apparatus that can remove pollutants from rainwater collected from roofs and legs of a building and use the same as recycled water for domestic water and landscape water .

In Korea, due to the change of climate, about 65% of rainfall is concentrated in summer, and the possibility of flood is increased during rainfall. In the case of local environment, the increase of pavement surface due to urbanization, And the amount of evapotranspiration and groundwater are decreased, thereby increasing the water treatment load of the sewage treatment plant.

Therefore, in Korea, it is required to designate and install facilities using rainwater in an athletic field, an indoor gymnasium, a public office, and a school.

However, since the pollutants in the air and the ground surface are mixed and moved by the rainwater, there is a problem that the pollutants are removed in order to use the rainwater.

In order to solve such a problem, Korean Patent Registration No. 1366083 (Feb. 21, 2014) has been proposed as a conventionally known technique.

However, conventionally known techniques have been used to remove contaminants and contaminants through the use of water purifiers, but there is a problem that it is inconvenient to replace and check the inside after a certain period of time has elapsed.

In addition, since the period of use is reduced according to the concentration of rainwater, the rainwater can not be used smoothly and the accumulated accumulated pollutants can not be treated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a rainwater collecting apparatus and a rainwater collecting method, Processing and use apparatuses.

The present invention also relates to a rainwater treatment and utilization device capable of easily cleaning a storage portion contaminated with contaminants introduced together with rainwater and discharging contaminants to the outside.

The present invention also relates to a rainwater treatment and utilization device capable of controlling the amount of stormwater discharged by discharging rainwater that has flowed in due to heavy rain or the like.

The present invention relates to a rainwater treatment and utilization device that can be used at all times by supplying tap water introduced from the outside when the last stored rainwater is exhausted.

In order to accomplish the above object, there is provided a rainwater treatment and utilization apparatus according to the present invention, comprising: a water collecting unit for discharging initial rainwater from rainwater collected and collecting rainwater; A storage unit that receives the stormwater collected in the storeroom and precipitates foreign matter contained in stormwater; A recycle water pipe configured to receive and discharge the stormwater by the first pump in the storage unit; A control unit for opening / closing the recycling water pipe so that the storages stored in the storage unit can be recycled; And a tap water supply pipe connected to the recycling water pipe and supplying tap water to the recycling water pipe opened and closed by the control unit, wherein the water collecting unit senses rainwater by the built-in rainwater sensing means, And a first valve which is opened and closed by a control unit for discriminating storms, wherein the storage unit comprises: a partition plate having a plurality of through holes formed therein for partitioning the rainwater inflow section and the rainwater discharge section so that rainwater can be circulated; And a second valve that is opened and closed through the control unit for discharging the sediment and the foreign substance detected by the water quality sensing unit, Wherein the connecting portion between the recycling water pipe and the tap water supply pipe is provided with a water tank Directional valve that is controlled through the control unit to supply tap water or storm water.

The water collecting part includes a rainwater collecting pipe in which a filter is installed and the rainwater sensing means is formed to detect rainwater flowing in, an overflow pipe for discharging rainwater to the outside when excessive rainwater flows in, And a buoyancy member for preventing reverse flow of the rainwater introduced by opening and closing the first discharge pipe.

The storage unit may further include a second drain pipe for discharging sediments, foreign matter, and stormwater through the water quality sensing unit connected to the controller.

And a cleaning unit that receives tap water from the tap water supply pipe and removes foreign matter adsorbed on the inside of the storage unit.

The washing means includes a supply pipe that is supplied with tap water from the tap water supply pipe, a discharge pipe inserted into the storage portion, a spray portion coupled to an end of the supply pipe to spray the tap water in all directions, And a second pump for increasing the flow rate of the fluid.

The supply pipe may further include a third valve that is opened and closed through the control unit to supply tap water to the supply pipe according to the turbidity of the storage unit.

Wherein the spraying unit comprises a housing which is rotated by receiving tap water from an end of the supply pipe by water pressure of tap water and an injection nozzle which is formed at a predetermined angle in the housing and is capable of spraying tap water in all directions of the storage unit desirable.

And a supply unit coupled to the cleaning unit to supply a disinfectant, a cleanser, and the like.

According to the rainwater treatment and use apparatus of the present invention, it is possible to remove sediment, foreign matter, and initial rainwater from the inflowed rainwater, easily remove sediments and foreign matter from the stored rainwater and use it as a reusable water for restrooms, It is effective.

In addition, when the stored stormwater is used, the tap water can be conveniently supplied, and the water can be used for a long period of time.

Also, sediments and foreign substances precipitated in the storage portion can be easily discharged, and deposits and foreign substances adsorbed in the storage portion can be easily removed.

Finally, bacteria and odors generated in the sealed storage portion can be easily removed, and the water quality of the stored excellent long-term can be maintained.

1 is a sectional view showing a rainwater treatment and utilization apparatus according to the present invention,
2 is a cross-sectional view illustrating a nozzle unit according to the present invention,
3 is a block diagram showing a control state by the control unit according to the present invention;
Fig. 4 is a sectional view showing a state of discharging an initial storm according to the present invention, Fig.
FIG. 5 is a cross-sectional view showing the state of purification of the storm in the storage unit according to the present invention,
FIG. 6 is a sectional view showing a supply state of tap water according to the present invention,
FIG. 7 is a cross-sectional view illustrating a state of a precipitate and foreign matter being absorbed in a storage portion according to the present invention.

Hereinafter, a rainwater treatment and utilization apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view illustrating a nozzle unit according to the present invention. FIG. 3 is a block diagram showing a control state by a control unit according to the present invention, and FIG. FIG. 4 is a cross-sectional view showing a state in which the initial stormwater is discharged according to the present invention, FIG. 5 is a cross-sectional view showing the state of purification of stormwater in the storage unit according to the present invention, FIG. 7 is a cross-sectional view showing the state of the sediment and foreign matter being absorbed in the storage portion according to the present invention. FIG.

As shown in FIGS. 1 to 3, the present invention relates to a rainwater treatment and utilization apparatus using rainwater, and can remove pollutants from rainwater collected from roofs and legs of a building and can be used as recycled water such as domestic water and landscape water To a rainwater treatment and utilization apparatus.

A storage unit 20, a recycling water pipe 30, a control unit 50, and a tap water supply pipe 40 so that rainwater can be collected and used after removing contaminants.

The water collecting part 10 discharges the initial rainwater and collects rainwater.

The storage unit 20 is configured to receive sediment collected in the sump unit 10 and to sediment sediments and foreign substances contained in the sludge.

The recycle water supply pipe 30 is connected to the storage unit 20 so that the first pump 31 can supply and discharge the storm water.

The control unit 50 opens and closes the recycle water pipe 30 so that the storages stored in the storage unit 20 can be recycled.

The tap water supply pipe 40 is connected to the recycle water supply pipe 30 and is configured to supply tap water to the recycle water supply pipe 30 opened and closed by the control unit 50.

As a result, rainwater is collected, and it is supplied to homes, playgrounds, and gardens so as to remove sediments and foreign matter mixed in the collected rainwater and use them as reusing water.

In addition, the tap water supply pipe 40 is preferably configured to supply water such as ground water that can be used as reusing water to playgrounds, gardens, etc., other than tap water.

Therefore, the water collecting part 10 includes a rainwater collecting pipe 11 in which the filter 11a is installed and the rainwater sensing unit 51 is formed to detect rainwater flowing in, An overflow pipe 15 for discharging the first valve 13, and a first discharge pipe 12 equipped with the first valve 13.

In addition, the water collecting part 10 may have a lower end in a cyclone shape so that the rainwater can be easily guided so that the rainwater can be easily discharged.

The rainwater collecting pipe (11) is formed by the filter (11a) formed on the inlet side so as to remove voluminous foreign substances such as leaves, garbage and the like so that the rainwater can flow in. And the rainwater sensing means 51 is formed on the inner side to allow rainwater to be easily sensed.

In addition, the rainwater collecting pipe 11 is preferably introduced by introducing relatively clean rainwater before passing through the ground such as a building or a playground, and rainwater introduced from other bridges, drainage can be used.

The overflow pipe 15 is formed on the upper surface of the water collecting part 10 so that the storages of the storing part 20 and the water collecting part 10 can be backflowed and discharged to the outside, And a protection net 15a is formed at the discharge end to prevent insects such as mosquitoes and flies from entering.

At this time, it is preferable that the end portion through which the rainwater is discharged through the overflow pipe 15 is connected to the sewage, the sewage pipe, and the like so that the rainwater can be discharged smoothly.

The first discharge pipe 12 is formed in a lower part of the water collecting part 10 and the first valve 13 is formed therein and the first valve 13 is connected to the rainwater sensing unit 51 And is opened / closed by the control unit 50 which discriminates the initial storm and storm according to the elapse of time.

Here, the rainwater sensing means 51 preferably comprises a sensor or the like for identifying rainwater flowing in.

In addition, the first discharge pipe (12) is provided with a buoyancy member (20) for preventing the backflow of the rainwater flowing into the first discharge pipe (12) due to the level of the rainwater collected by the first valve (13) 14 are formed.

Here, the buoyancy member 14 is formed on the first valve 13 so as to move up and down by a water level within a predetermined interval to open / close the upper portion, .

The buoyancy member (14) is preferably configured to prevent the buoyancy member (14) from being detached at the same time by a guide member protruding upward.

Accordingly, the water collecting part 10 can remove relatively bulky foreign matter and initial rainwater from the incoming rainwater, and can be easily discharged when the stored rainwater is exceeded.

The storage unit 20 includes a partition plate 23 partitioning the rainwater inflow section 21 and the rainwater discharge section 22 and having a plurality of through holes 23a through which rainwater can flow, A water level measuring means 52 for measuring a degree of turbidity of stored rainwater, a water level detecting means 53 for detecting a degree of turbidity of stored rainwater, a controller 50 for discharging sediments and foreign substances detected by the water quality detecting means 53 And a second valve (25) controlled through the second valve (25).

Therefore, the storage unit 20 is provided with a rainwater inflow section 21 for receiving rainwater through the inflow pipe 21a connected to the water collecting section 10 and a rainwater inflow section 21 for separating the sediment and foreign matter from the rainwater inflow section 22 And a rainwater discharge area 22 for receiving and discharging rainwater.

Here, the rainwater inflow section 21 and the rainwater discharge section 22 are formed in the same shape and are partitioned by the partition plate 23 having the plurality of through holes 23a.

The water level measuring means 52 for measuring the water level in the rainwater inflow section 21 or the rainwater discharge section 22 to measure the level and turbidity of the stored rainwater and the water quality sensing means 53 are formed.

Here, the water level measuring means 52 may measure the stored water level through a sensor, buoyancy or the like, and the water quality sensing means may be capable of checking the degree of turbidity through a sensor, a filter, or the like.

It is preferable that the water level measuring means 52 and the water quality sensing means 53 are formed in the partitioned rainwater discharge area 22 and can measure the discharged rainwater.

When the degree of turbidity of the rainwater is detected by the water quality sensing means 53 to a predetermined value or more, the control unit 50 opens and closes the sediment, 2 valve 25 is formed.

Therefore, the second discharge pipe 24 is formed so as to move the sediment, foreign matter, and rainwater discharged through the second valve 25 to the excellent, sewage, and the like.

The second valve 25 may be formed in the lower part of the rainwater inflow section 21 and the rainwater discharge section 22 and may be formed in the second discharge pipe 24 .

The lower part of the rainwater inflow area 21 and the rainwater discharge area 22 are formed to be inclined downward toward the second valve 25 so that sediment and foreign matter can be easily discharged through the second valve 25 .

Accordingly, sediments and foreign substances stored in the storage unit 20 can be easily removed, and the stored quality of the stormwater can be maintained at all times.

A three-way valve (not shown), which is controlled through the control unit 50, is provided at the connection between the recycle water supply pipe 30 and the tap water supply pipe 40 to supply tap water or storm water according to the level and the degree of turbidity of the storage unit 20. [ (Not shown).

The three-way valve 32 is adapted to selectively supply tap water or storm water. The three-way valve 32 can be replaced with a two-way valve separately formed in the recycle water supply pipe 30 and the tap water supply pipe 40, The third directional valve 32 is preferably used.

In addition, the recycling water pipe 30 is discharged to a place where reusable water such as toilet, garden water, industrial water, and cleaning water can be utilized.

Therefore, the rainwater stored in the storage unit 20 can be measured by the water level and the degree of turbidity and discharged by the first pump 31. If the water level and turbidity degree is detected to be a certain value or more, Way valve 32 is controlled by the control unit 50 so that the three-way valve 32 is controlled.

Accordingly, it is environmentally friendly and can save tap water because the rainwater stored in the storage unit 20 can be used in a variety of places where reuse water is needed, and the rainwater can not be stored due to drought or the like, It can be easily used by tap water even if it can not be used.

And a cleaning means 60 for receiving tap water by the tap water supply pipe 40 and removing foreign substances adsorbed in the storage portion 20 is formed.

The cleaning means 60 is connected to the tap water supply pipe 40 and is supplied with tap water and includes a supply pipe 61 inserted into the storage portion 20, And a second pump 63 connected to the supply pipe 61 to increase the water pressure of the tap water.

Here, the jetting unit 62 receives tap water from the supply pipe 61 so as to be sprayed in all directions of the storage unit 20 while rotating at the end of the supply pipe 61 by water pressure of the tap water, And a plurality of injection nozzles 62b formed at a predetermined angle in the housing 62a.

In addition, the injection nozzle 62b is supplied with the water pressure of the tap water by the second pump 63 through the supply pipe 61, and the injection nozzle 62b is connected to the supply pipe 61 by the increased water pressure, And the water is sprayed.

Accordingly, the injection nozzle 62b is formed at an upper portion and a lower portion at a predetermined angle and removes the foreign matter adsorbed on the inner surface from the upper surface to the lower surface of the storage portion 20 by water pressure, In order to be able to discharge it.

The third valve 64 is opened and closed through the control unit 50 to supply the tap water to the supply pipe 61 according to the degree of turbidity of the storage unit 20.

The supply pipe (61) is formed with a supply part (70) formed on the outside and capable of supplying a disinfectant, a cleaning agent and the like to the supply pipe (61).

The supply unit 70 may be connected to the supply pipe 61 and may include a fourth valve 71 controlled by the control unit 50 to control the flow of the supply gas into the supply pipe 61 .

Accordingly, the sealed storage unit 20 can be easily cleaned and disinfected, and the deposited sediment and foreign matter can be easily discharged.

Accordingly, the operation state will be described below as shown in FIGS.

When the rainwater removed from the rainwater collector pipe 11 flows into the water collecting part 10, the rainwater is rotated inside the water collecting part 10, so that the initial rainwater together with the discharge pipe precipitate and the foreign matter, And then discharged to the discharge pipe 12, and the first valve 13 is closed when a predetermined time elapses to store the storm.

At this time, the buoyancy member (14) prevents the backflow of storm stored in the first discharge pipe (12), prevents the flow of the introduced oil, and prevents sediment and foreign matter from mixing.

The storm having the initial storm removed is moved to the storage unit 20 and stored, and the sediment and foreign matter are precipitated downward by the specific gravity.

At this time, a plurality of through-holes 23a are formed in the partition plate 23 partitioning the rainwater inflow section 21 and the rainwater discharge section 22 so as to lower the flow rate of the inflow, thereby facilitating precipitation of sediment and foreign matter can do.

It also prevents sediment and foreign matter precipitated in the bottom from floating by the flow velocity.

The rainwater from which the precipitate and the foreign matter are removed can be sucked through the recycle water pipe 30 and used as reused water such as toilet, garden water, industrial water, and the like.

When the storages exceed the storage capacity of the storage unit 20, the storages are discharged to the outside through the overflow pipe 15 formed in the upper part of the collection unit 10. The overflow pipe 15 Is desirably discharged to a sewer pipe, a sewage pipe or the like so that the introduced storm can be easily discharged.

Therefore, the storm that the initial storm has been removed from the incoming rainwater can be used to remove sediments and foreign matter.

When the water level of the stormwater stored in the storage unit 20 is measured through the water level measuring means 52 and the water quality sensing means 53 at a certain level and the degree of turbidity is below a predetermined value, And the tap water is supplied through the tap water supply pipe (40) so that the tap water can be used.

Therefore, when stored rainwater can not be used, tap water is supplied and made available at all times.

If the stored sediment and foreign matter can not be used in the lower part of the storage part 20, the water is detected through the water quality sensing part 53 and the second valve 25 are opened to discharge sediments, foreign matter, and stormwater to the outside through the second discharge pipe (24) to remove sediments and foreign matter.

At this time, it is preferable that the discharged sediment, foreign matter, and rainwater are connected to the drain pipe 24 through the second drain pipe 24 so as to easily transfer the discharged storm water.

Accordingly, when the storm can not be used as reusing water and the storage unit 20 is contaminated, the sediment, foreign matter, and storm can be discharged to store the clean storm in the storage unit 20.

As shown in FIG. 7, the cleaning means 60 removes sediments and foreign substances adsorbed on the inner surface of the storage unit and discharges or deposits them.

It is preferable that the cleaning means 60 is operated so as to remove the foreign substances and sediments adsorbed therein while discharging the sediment, foreign matter and stormwater when the water quality measured by the water quality sensing means 53 is a certain value or less .

Therefore, tap water is supplied to the control unit 50, and the water is sprayed on the inner surface to remove the adsorbed foreign substances and sediments, and is discharged to the outside through the second valve 25 formed at the bottom or precipitated downward.

It is also preferable that a disinfectant, a detergent or the like for facilitating the removal of germs, odors, and foreign substances propagating in the interior of the storage unit 20 sealed through the supply unit 70 is provided.

In order to prevent the inner surface of the storage part 20 from being contaminated by sediments and foreign substances due to storms stored in the storage part 20 and to prevent the quality of the storm water from being degraded, The inner surface can be easily cleaned.

A variety of medicines such as a cleaning agent and a disinfectant can be added to easily clean and disinfect the inner surface of the storage unit, thereby preventing deterioration of water quality for a long time.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. It is obvious that you can do it.

10: Collecting house 11: Rainwater house
11a: filter 12: first discharge pipe
13: first valve 14: buoyancy member
15: overflow pipe 15a: protection net
20: storage part 21: rainwater inflow zone
21a: Inflow pipe 22: Rainwater discharge area
23: partition partition plate 23a: through hole
24: second outlet pipe 25: second valve
30: recycle water supply pipe 31: first pump
32: 3-way valve 40: Tap water supply pipe
50: control unit 51: rainwater sensing means
52: water level measuring means 53: water quality sensing means
60: cleaning means 61: supply pipe
62: jetting section 62a: housing
62b: injection nozzle 63: second pump
64: third valve 70:
71: fourth valve

Claims (8)

A collecting part (10) for discharging the initial rainwater and collecting rainwater from the collected rainwater;
A storage unit 20 that receives the stormwater collected in the stormwater collecting unit 10 and deposits foreign matter contained in stormwater;
A recycle water supply pipe (30) for supplying and discharging the stormwater by the first pump (31) in the storage unit (20);
A control unit 50 for opening / closing the recycling water pipe 30 so that the storages stored in the storage unit 20 can be recycled;
And a tap water supply pipe (40) connected to the recycle water supply pipe (30) and supplying tap water to the recycle water supply pipe (30) opened and closed by the control unit (50)
The water collecting part 10 further includes a first valve 13 which is opened and closed by the controller 50 which senses rainwater by the built-in rainwater sensing means 51 and discriminates the initial rainwater and the rainwater over time and,
The storage unit 20 includes a partition plate 23 partitioning the rainwater inflow section 21 and the rainwater discharge section 22 and having a plurality of through holes 23a through which rainwater can flow, A water level detecting means 53 for detecting the degree of turbidity of stored rainwater, a water level detecting means 53 for detecting a degree of turbidity of stored rainwater, a control means 50 for discharging sediments and foreign substances detected by the water quality sensing means 53, Further comprising a second valve (25) opened and closed,
A three-way valve (not shown) is connected to the connection part between the recycling water pipe (30) and the tap water supply pipe (40) through the controller (50) to supply tap water or storm water according to the level and turbidity of the storage part 32)
The water collecting part 10 includes a rainwater collecting pipe 11 to which the filter 11a is installed and in which the rainwater sensing means 51 is formed so as to detect the inflow of rainwater, A first discharge pipe 12 to which the first valve 13 is mounted and a buoyancy member for preventing the backflow of the inflow introduced by opening and closing the first discharge pipe 12 14)
The tap water supply pipe 40 is connected to the tap water supply pipe 40 so as to remove foreign matter adsorbed on the inside of the storage unit 20 by receiving tap water from the tap water supply pipe 40, A spraying part 62 coupled to an end of the supply pipe 61 for spraying tap water in all directions and a spray nozzle 62 connected to the supply pipe 61 for increasing the water pressure of the tap water, Further comprising a cleaning means 60 comprised of a pump 63 ,
The dispenser 62 includes a housing 62a that receives water supplied from the end of the supply pipe 61 by the water pressure of the tap water and rotates and a plurality of openings formed at the housing 62a at a predetermined angle, And a spray nozzle (62b) capable of spraying tap water in the direction of the water spray.
delete The method according to claim 1,
The storage unit 20 further includes a second discharge pipe 24 for discharging sediments, foreign matter, and rainwater through the water quality sensing unit 53 connected to the controller 50. Processing and utilization apparatus.
delete delete The method according to claim 1,
The supply pipe 61 may further include a third valve 64 opened and closed through the control unit 50 to supply tap water to the supply pipe 61 according to the degree of turbidity of the storage unit 20. [ Rainwater treatment and utilization apparatus.
delete The method according to claim 1,
Further comprising a supply unit (70) connected to the cleaning unit (60) and capable of supplying powder and liquid phase composed of a disinfectant, a cleaning agent, and the like.
KR1020140179611A 2014-12-12 2014-12-12 Rainwater treatment and utilizing equipment KR101555447B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101905810B1 (en) * 2018-02-27 2018-10-08 (주)경림엔지니어링 Road structure with water drain of road surface
KR20190046574A (en) * 2017-10-26 2019-05-07 이종환 Living sewage recycling device for toilet bowl
KR102078752B1 (en) 2019-06-18 2020-02-18 주식회사 코리아모바일 Environment-friendly restroom using reprocessed toilet water using hollow fiber membranes and rainwater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005013779A (en) * 2003-06-23 2005-01-20 Daido Steel Co Ltd Filter
KR101096768B1 (en) * 2011-02-15 2011-12-21 (주) 삼진정밀 Rainwater utility system
KR101243415B1 (en) * 2012-07-04 2013-03-13 최중철 Rainwater purification apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005013779A (en) * 2003-06-23 2005-01-20 Daido Steel Co Ltd Filter
KR101096768B1 (en) * 2011-02-15 2011-12-21 (주) 삼진정밀 Rainwater utility system
KR101243415B1 (en) * 2012-07-04 2013-03-13 최중철 Rainwater purification apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190046574A (en) * 2017-10-26 2019-05-07 이종환 Living sewage recycling device for toilet bowl
KR102002160B1 (en) * 2017-10-26 2019-07-19 이종환 Living sewage recycling device for toilet bowl
KR101905810B1 (en) * 2018-02-27 2018-10-08 (주)경림엔지니어링 Road structure with water drain of road surface
KR102078752B1 (en) 2019-06-18 2020-02-18 주식회사 코리아모바일 Environment-friendly restroom using reprocessed toilet water using hollow fiber membranes and rainwater

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