KR101691114B1 - Rainwater Treatment System - Google Patents

Abstract

The present invention relates to a rainwater treatment system capable of removing foreign matters and contaminants contained in rainwater through secondarily collecting, depositing, and filtering / disinfecting foreign matter. More specifically, the present invention relates to a rainwater treatment system for removing relatively large foreign matter A second foreign material collecting device for removing fine foreign materials that can not be removed from the first foreign material collecting device, a second foreign material collecting device for storing rainwater discharged from the second foreign material collecting device and depositing foreign matter remaining in the rainwater A precipitation storage tank and a UV filter for filtering and sterilizing the supernatant of the precipitation storage tank.

Description

[0001] Rainwater Treatment System [

The present invention relates to a rainwater treatment system capable of removing foreign matters and contaminants contained in rainwater through secondarily collecting, depositing, and filtering / disinfecting foreign matter. More specifically, the present invention relates to a rainwater treatment system for removing relatively large foreign matter A second foreign material collecting device for removing fine foreign materials that can not be removed from the first foreign material collecting device, a second foreign material collecting device for storing rainwater discharged from the second foreign material collecting device and depositing foreign matter remaining in the rainwater A precipitation storage tank and a UV filter for filtering and sterilizing the supernatant of the precipitation storage tank.

At present, global climate change due to environmental pollution and global warming is causing drought and flooding in each country and region. In particular, due to the increase in impervious surface due to economic development and urban development, the phenomenon such as gun stream and urban flood damage are increasing, and it is necessary to recover to a healthy water circulation condition.

In Korea, too, the population density is higher than the average annual precipitation, so the water available per capita is low and it is evaluated as a water shortage country. Accordingly, the government promulgated and promulgated the Water Reuse Promotion and Support Act in 2010, (Such as a gymnasium), a private facility with more than a certain area (a public housing with a building area of 10,000 square meters or more, a school with more than 5,000 square meters, a large-scale store with a total area of more than 3,000 square meters, Or more golf courses).

In addition to the rainy season, which is concentrated during the period from June to September, rainfall in Korea is characterized by heavy rainfall due to typhoons and local rainfall due to geographical characteristics. Accordingly, the characteristics and distribution of various pollutants such as garbage, soil, dirt, and other harmful substances contained in rainwater falling down at the beginning of rainfall vary greatly depending on rainfall characteristics. Therefore, it is desirable to select the roof surface of the rainwater for the roof or the roof which is not exposed to the human activity relatively.

In addition, techniques for treating contaminants contained in rainwater can be divided into physical methods and chemical methods. Physical methods include various methods such as sedimentation, gravity filtration, pressure filtration, and membrane filtration. However, It can mainly be divided into precipitation and filtration. Chemical methods can be classified into chlorine disinfection, disinfection with ultraviolet lamp, ozone treatment with ozone, and disinfection with other disinfection chemicals.

In the treatment of the pollutants of rainwater by applying the above various techniques, various factors such as the area required for using the apparatus and the machine, required power, processing efficiency, construction cost, .

Korean Laid-Open Publication No. 2014-0113625 (published on September 24, 2014) Korean Laid-Open Publication No. 2011-0085129 (Published on July 27, 2011)

In order to solve the above-mentioned problems, the present invention provides a method and apparatus for continuously performing a rainwater treatment method such as precipitation, filtration, sterilization and disinfection to cope with precipitation with a large variation width such as rainy season or heavy rainfall, And an object of the present invention is to provide a rainwater treatment system.

In addition, the present invention can store stormwater in a state in which water treatment is completed, such as filtration, disinfection and disinfection, so that rainwater can be safely stored even in the absence of rainfall, filtration and sterilization can be simultaneously performed in a single device, It is an object of the present invention to provide a rainwater treatment system that can be easily managed.

In order to accomplish the above object, an embodiment of the rainwater treatment system of the present invention includes a primary foreign matter collecting apparatus 100 for removing foreign matter from collected rainwater, a rainwater collecting apparatus 100 for collecting rainwater discharged from the primary foreign matter collecting apparatus 100, A sediment storage tank 300 for accumulating rainwater discharged from the secondary particle collecting apparatus 200 to deposit residual foreign matter in the lower part, 300) for filtering and sterilizing the supernatant.

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The second foreign material collecting apparatus 200 may be located at the upper part of the sediment storage tank 300 and rainwater overflowing without passing through the second foreign material collecting apparatus 200 may be supplied to the sediment storage tank 300 Can be introduced directly.

A sludge collector 310 for collecting the precipitated foreign substances may be installed in the lower part of the sediment storage tank 300.

The UV filter 400 includes an outer housing 410 formed with a raw water inlet 411 at one side thereof and a filter space A formed at an outer portion of the outer housing 410 with an interval therebetween, A filter medium 412 for filtering impurities of raw water is filled in the filtration space A and an inner housing 420 having a treated water discharge port 423 formed at one side thereof forms a sterilization space B, And an ultraviolet lamp 422 is disposed in the sterilization space B to sterilize filtered water from which impurities have been removed.

At this time, a filtering material loss preventing porous plate 421 for communicating the filtration space A and the sterilizing space B is formed in the lower portion of the inner housing 420, and the filtered water passing through the filter material 412, The inner housing 420 may be configured to be detachable from the outer housing 410. The inner housing 420 may be detachably attached to the sterilizing space B through the loss preventing perforated plate 421. [

In addition, the raw water introduced from the raw water inlet 411 preferably forms a vortex that rotates along the inner wall of the outer housing 410 while descending.

A guide vane 424 may be formed on the inner wall of the inner housing 420 so as to form a vortex in the filtered water that has passed through the filtering medium loss preventing porous plate 421. The vortexed filtered water may be irradiated with ultraviolet rays It is preferable to swing the ultraviolet lamp 422 about the central axis to increase the time. At this time, the direction of the vortex formed in the sterilizing space B through the guide vane 424 may be opposite to the direction of the vortex formed in the filtration space A, but the present invention is not limited thereto.

In addition, the ultraviolet lamp 422 ultimately does not need a separate cleaning facility due to the cleaning of the lamp by the vortex. However, if necessary, an electric lamp cleaning facility is installed, and contaminants stick to the outer surface of the ultraviolet lamp, Can be prevented.

A bubble generator 425 for discharging air bubbles may be formed in the lower portion of the sterilizing space B, and the air bubbles may have various sizes, but may be micro bubbles having a diameter of 10 to 100 μm .

In addition, the UV filter 400 may further include a pump for introducing washing water into the treated water outlet 423 during backwashing, and the washing water introduced from the treated water outlet 423 may have a cleaning effect It is preferable to form a swirling vortex along the inner wall of the inner housing 420 while rotating.

At this time, in order to improve the back washing efficiency of the UV filter 400, air washing and water washing may be applied together. In this case, a blower for injecting air may be additionally included. In addition, the rainwater treatment system of the present invention may further include a treatment water tank 500 for storing the treatment water discharged from the UV filter 400.

Meanwhile, another embodiment of the rainwater treatment system of the present invention includes a primary foreign matter collecting part 100 'for removing foreign matter from the collected rainwater; A secondary foreign matter collecting part 200 'for removing fine foreign substances in the rainwater flowing from the primary foreign matter collecting part 100'; A sediment storage section 300 'for storing the rainwater introduced from the secondary particle collector 200' and precipitating the residual foreign matter at the bottom; And a UV filtering unit 400 'for filtering and sterilizing the rainwater introduced from the upper part of the sediment storage unit 300'.

At this time, a screen screen 110 'for collecting foreign matter in rainwater is installed on the partition between the primary foreign matter collecting part 100' and the secondary foreign matter collecting part 200 ', and the secondary foreign matter collecting part 200' It is preferable that a partition screen 210 'for collecting fine foreign substances in the rainwater is installed on the partition between the storage pool 100' and the precipitation storage unit 300 '.

A ware 330 for introducing the supernatant in the precipitation storage part 300 'to the UV filtering part 400' is formed on the upper part of the partition between the precipitation storage part 300 'and the UV filtering part 400' .

The lower part of the primary foreign matter collecting part 100 ', the secondary foreign matter collecting part 200' and the sediment storing part 300 'is connected to a pipe line for discharging the foreign substances precipitated in each part to the outside V / v3, v / v4, v / v5) for controlling whether or not the foreign substances precipitated in the respective portions are discharged is formed in the pipe.

In this case, the valves may be opened or closed depending on the situation. In an exemplary embodiment, in order to lower the level of the sediment storage portion 300 'in the backwashing operation to a level lower than the UV filtering portion 400', the sediment storage portion 300 ' (V / v5) connected to the valve (v / v) is opened.

In order to minimize the installation space, the lower part of the primary foreign substance collecting part 100 ', the secondary foreign substance collecting part 200', the precipitation storing part 300 'and the UV filtering part 400' It is preferable that the treatment water storage part 500 'for storing the treated water discharged from the filtration part 400' is located. In this case, the first foreign matter collecting part 100 ', the second foreign matter collecting part 200' At least one support member 600 may be formed in the empty space between at least one of the sediment storage section 300 'and the UV filtration section 400' and the treated water storage section 500 '.

INDUSTRIAL APPLICABILITY The rainwater treatment system according to the present invention is capable of coping with rainfall with a large variation width such as rainy season or heavy rainfall by continuously performing individual rainwater treatment methods such as precipitation, filtration, sterilization and disinfection, The rainwater can be safely stored even in a period of no rainfall.

In addition, the rainwater treatment system of the present invention can improve the quality of the final treated water by improving the layer stability of the filter material and increasing the ultraviolet ray irradiation time as well as enabling the filter device and the sterilizing device to be integrally formed, .

1 is a flow chart showing a rainwater treatment system according to an embodiment of the present invention;
FIGS. 2 and 3 are longitudinal and transverse cross-sectional views illustrating a UV filter arrangement and a water treatment flow according to an embodiment of the present invention.
4 and 5 are a longitudinal sectional view and a transverse sectional view showing a UV filter structure and a water treatment flow according to another embodiment of the present invention
Figures 6 and 7 are longitudinal and transverse cross-sectional views showing the water treatment flow in the UV filter during backwashing
8 is a sectional view showing a rainwater treatment system according to another embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to illustrate the present invention in a manner that allows a person skilled in the art to easily carry out the invention. The present invention is not limited thereto.

Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

1, the rainwater treatment system of the present invention includes a primary foreign matter collecting apparatus 100 for removing foreign matter from rainwater collected as shown in FIG. 1, a fine particle removing apparatus 100 for removing fine foreign matter from rainwater discharged from the primary foreign matter collecting apparatus 100 A sediment storage tank 300 for accumulating rainwater discharged from the secondary particle collecting apparatus 200 to sediment residual foreign matter at a lower portion of the sediment storage tank 200, And a UV filter 400 for sterilization. Let's take a closer look at each configuration below.

First, it is desirable that rainwater is collected from roofs or rooftops that are relatively unexposed to human activities. The collected rainwater passes through the primary foreign matter collecting apparatus 100 to remove foreign particles having large specific gravity, which are contained in the initial rainwater, such as soil, solid materials, large particle contaminants and various kinds of waste.

At this time, in order to minimize the impurities, an initial rainwater exclusion device may be separately installed before the primary foreign matter collecting apparatus 100 to exclude the initial rainwater from the rainwater flowing into the primary foreign matter collecting apparatus 100. The rainwater exclusion apparatus may be a variety of apparatuses that exclude the initial rainwater. In one embodiment, a 3way valve may be used.

The rainwater, which is primarily removed from the first foreign material collecting apparatus 100, is introduced into the second foreign material collecting apparatus 200 in order to remove finer foreign materials. The second foreign material collecting apparatus 200 is for removing small foreign particles that can not be removed from the first foreign material collecting apparatus 100. In one embodiment, A small collection network can be used.

As shown in FIG. 1, the secondary particle collecting apparatus 200 may be disposed at various positions, but it may be located at an upper portion of the sediment storage tank 300, as shown in FIG. When the flow rate suddenly increases as in the case of heavy rain by placing the second foreign material collecting apparatus 200 on the upper part of the inside of the sediment storage tank 300, the rainwater that can not pass through the second foreign material collecting apparatus 200, And may be directly introduced into the sediment storage tank 300.

The rainwater from which fine particles are removed from the secondary particle collecting apparatus 200 flows into the precipitation storage tank 300 and the rainwater flowing into the precipitation storage tank 300 is deposited and removed. At this time, a sludge collector 310 for collecting the precipitated foreign substances may be installed in the lower part of the sediment storage tank 300. The sludge collected by the sludge collector 310 is transferred to the sludge storage tank 320 by the sludge transfer pump Can be transferred and stored.

On the other hand, the supernatant of the sediment storage tank 300 remaining after the residual foreign matter is settled is ultimately introduced into the UV filter 400 by a pump or the like. The UV filter 400 of the present invention, as shown in FIG. 2, And the sterilizing device are integrally formed, filtration and sterilization are simultaneously performed in one apparatus, and the washing process is also performed simultaneously by backwashing.

Specifically, the UV filter 400 of the present invention comprises an outer housing 410 having a raw water inlet 411 formed on one side thereof and an internal housing 420 having a treated water outlet 423 formed on one side thereof, as shown in FIG. The inner housing 420 is inserted into the outer housing 410 with a space therebetween to form a filtering space A to the outside and a sterilizing space B to form an inner space.

At this time, a filter medium 412 for filtering impurities of raw water is filled in the filtration space A, and an ultraviolet lamp 422 for sterilizing filtered water with impurities removed is installed in the sterilization space B . As the filter medium 412, various particulate media such as sand, anthracite, and activated carbon may be used.

The filter housing 412 is provided at a lower portion of the inner housing 420 with a filtration membrane 411 for communicating the filtration space A and the sterilizing space B, And is introduced into the sterilization space B from the filtration space A through the barrier ribs 421. The filtering material 412 may be made of any material that can pass only filtered water passing through the filter material 412 without passing through the filtering material 412. For example, A perforated plate having a shape or a mesh shape may be used.

Meanwhile, the inner housing 420 may be fixed to the outer housing 410, but may be detachable from the outer housing 410. The UV filter of the present invention can be easily constructed by simply inserting the inner housing 420 into the various types of filtration apparatuses that have been used in the past by easily detachably installing the inner housing 420. As a result, Can be minimized.

3, the raw water introduced from the raw water inlet 411 may be lowered while being rotated along the inner wall of the outer housing 410 It may have a cylindrical shape so as to form a vortex.

At this time, the inlet direction of the raw water inlet 411 is preferably a tangential direction of a cross section of the outer housing 410 or a tangential direction of a vortex to be formed, rather than an inner center of the outer housing 410 to facilitate vortex formation.

When the raw water flows into the filter medium 412 while forming the vortex, the layer stability of the filter medium is improved and the filtration efficiency is improved.

4, a guide vane 424 may be separately formed in the lower portion of the sterilization space B to form a vortex in the filtered water having passed through the filtering medium loss prevention porous plate 421 as shown in FIG. The filtered water having the vortex is raised by pivoting around the ultraviolet lamp 422. This not only increases the ultraviolet irradiation time for the filtered water but also causes the filtered water passing through the filter medium 412 to flow into the sterilization space B It can be a driving force.

At this time, the direction of the vortex formed in the sterilization space B may coincide with the direction of the vortex formed in the filtration space A of the outer housing 410, but the time required for the filtered water to stay in the sterilization space B is maximized The direction of the vortex formed in the filtration space A may be adjusted by adjusting the installation direction of the guide vane 424 provided on the inner wall of the inner housing 420. [

In addition, a bubble generator 425 for discharging air bubbles may be additionally installed in the sterilization space B to increase the sterilizing power. The air bubbles are supplied to the inner housing 420 provided with the ultraviolet lamp 422, so that ultraviolet ray transmittance is increased by ultraviolet scattering due to air bubbles, and the sterilizing power can be further improved.

At this time, the air bubbles may have various sizes, but they are preferably micro bubbles having a diameter of 10 to 100 μm in order to increase the sterilizing power. Unlike nano bubbles that do not change in size over time, the microbubbles float at a high speed, increasing the lifting speed and diameter gradually as they float, increasing the residence time and diffusivity in the treated water of the bubbles .

In addition, microbubbles have an effect of improving water quality by themselves because of high oxygen transfer efficiency in water.

In the meantime, the present invention is characterized in that the filtration device and the sterilizing device are integrally formed, and the cleaning process is performed simultaneously with backwashing as shown in FIGS. The washing water introduced into the inner housing 420 through the treated water outlet 423 is firstly cleaned in the sterilizing space B and then passed through the filtering medium loss preventing plate 421 to the filtration space A The filter medium 412 is washed and finally discharged to the outside through the raw water inlet 411.

At this time, it is preferable that the washing water flowing into the treated water outlet 423 forms a swirling vortex along the inner wall of the inner housing 420. By forming the vortex in this manner, it is possible to increase the contact time of the ultraviolet lamp by the washing water, thereby enabling stable washing.

In addition, when backwashing, a pump for injecting washing water into the treated water outlet 423 may be further connected and used. If necessary, an electric lamp washing facility may be installed to cause contaminants to adhere to the outer surface of the ultraviolet lamp, It is possible to prevent the efficiency from being lowered.

In order to improve the backwashing efficiency of the UV filter, it is possible to apply the air cleaning and the water cleaning together, in which a blower for injecting air can be additionally connected.

The treated water discharged from the UV filter 400 may be stored and stored in a separate treatment tank 500. The rainwater stored in the treatment tank 500 is in a state in which water treatment such as filtration, You can also safely store rainwater. The stored rainwater can be used in a variety of fields such as landscape water, clean water and the like as needed.

Meanwhile, the rainwater treatment system of the present invention may be realized through a series of different apparatuses as described above, but may be configured to be continuously performed in one apparatus.

In detail, the rainwater disposal system of the present invention includes a primary foreign matter collecting part 100 'for removing foreign matter from collected rainwater as shown in FIG. 8; A secondary foreign matter collecting part 200 'for removing fine foreign substances in the rainwater flowing from the primary foreign matter collecting part 100'; A sediment storage section 300 'for storing the rainwater introduced from the secondary particle collector 200' and precipitating the residual foreign matter at the bottom; And a UV filtering unit 400 'for filtering and sterilizing the rainwater introduced from the upper part of the sediment storage unit 300'.

At this time, a screen screen 110 for collecting foreign substances in rainwater is installed on the partition between the primary foreign matter collecting part 100 'and the secondary foreign matter collecting part 200', and the secondary foreign matter collecting part 100 ' ') And the sediment storage section 300', a detailed screen 210 for collecting fine foreign substances in the rainwater is installed.

The collected rainwater may be directly introduced into the primary foreign matter collecting unit 100 ', but a separate bypass pipe may be formed in order to separate and discharge the initial rainwater through a gutter or a sewage pipe. At this time, it is preferable to form the valves v / v1 and v / v2 in the piping and the bypass piping flowing into the primary foreign matter collecting part 100 ', respectively, to control the flow path of the rainwater.

That is, the valve (v / v2) of the inlet pipe of the primary foreign matter collecting unit 100 'is closed and the valve (v / v1) of the bypass pipe connected to the outlet pipe (V / v2) of the inlet pipe of the primary foreign matter collecting part 100 'is opened and the valve (v / v2) of the bypass pipe connected to the exhaust pipe or the water pipe is opened, v1 are closed to allow the rainwater to flow into the primary foreign matter collecting part 100 '.

8, when the flow rate of the rainwater is suddenly increased as in the case of heavy rainfall, in order to prevent rainwater from being properly treated due to excess inflow water, the upper part of the primary foreign matter collecting part 100 ' The excess inflow water bypass pipe may be connected to the excess inflow water bypass pipe to allow the excess inflow water to be naturally discharged through the excess inflow water bypass pipe to the excellent pipe or the sewage pipe.

Meanwhile, the rainwater flowing into the primary particle collecting unit 100 'flows into the secondary particle collecting unit 200' through the coarse screen 110. In this process, the primary foreign matter Is screened by the screen screen 100.

The rainwater flowing into the second foreign matter collecting part 200 'flows into the precipitation storing part 300' through the detailed screen 210 again. In this process, Secondary foreign matters are filtered by the screen 100.

The rainwater from which the foreign substances have been removed while passing through the primary foreign matter collecting part 100 'and the secondary foreign matter collecting part 200' flows into the precipitation storing part 300 'to remove residual foreign matter and is subjected to a precipitation process At this time, a sludge collector 310 for collecting the precipitated foreign substances may be installed in the lower part of the sediment storage part 300 '.

The lower part of the first foreign matter collecting part 100 ', the second foreign matter collecting part 200' and the sediment storing part 300 'is connected to a pipe line for discharging the sludge settled in each part to the outside V / v3, v / v4, v / v5) for controlling whether or not the sludge settled in each part is discharged is formed in the pipe.

At this time, the discharge of the sludge may be performed by a natural descent method through opening and closing of a valve, but a sludge may be discharged by installing a pump if necessary.

The supernatant having residual foreign matter removed through the precipitation process in the precipitation storage part 300 'is passed through the UV filtering part 330 through the ware 330 located above the partitions between the precipitation storage part 300' and the UV filtering part 400 ' (400 ') to be subjected to a filtration and sterilization process.

The shape of the filtration unit 400 'may be various, for example, a rectangular shape or a cylindrical filter may be installed.

8, the UV filtering unit 400 'includes an inner housing 420 having a treated water outlet formed therein at one side thereof to form a filtering space A, and a sterilizing space B, A filter medium 412 for filtering impurities of raw water is filled in the filtration space A and an ultraviolet lamp 422 for sterilizing filtration water in which impurities are removed is disposed in the sterilization space B, .

At this time, a filtering material loss preventing porous plate 421 for communicating the filtration space A and the sterilizing space B is formed in the lower portion of the inner housing 420, and the filtered water passing through the filter material 412, The inner housing 420 may be configured to be detachable from the outer housing 410. The inner housing 420 may be detachably attached to the sterilizing space B through the loss preventing perforated plate 421. [

A guide vane 424 may be formed on the inner wall of the inner housing 420 so as to form a vortex in the filtered water that has passed through the filtering medium loss preventing porous plate 421. The vortexed filtered water may be irradiated with ultraviolet rays It is preferable to swing the ultraviolet lamp 422 about the central axis to increase the time. In addition, a bubble generator 425 for discharging air bubbles may be formed below the sterilizing space B as described above. The specific details are as described above.

The sterilized water that has passed through the filtration unit 400 'flows into the separate treatment water storage unit 500' and is stored. To minimize the installation space, the treated water storage unit 500 ' It is preferably located below the collecting part 100 ', the second foreign substance collecting part 200', the precipitation storing part 300 'and the UV filtering part 400'.

At this time, at least one of the primary foreign matter collecting part 100 ', the secondary foreign material collecting part 200', the precipitation storing part 300 'and the UV filtering part 400' ', One or more support members 600 may be formed as shown in FIG.

Meanwhile, sterilized water passing through the UV filtering unit 400 'flows into the treated water storage unit 500' located at the lower part through the sterilized water discharge pipe, and the sterilized water passing through the UV filtered unit 400 ' The treated water is supplied to the external need through the treatment water discharge pipe.

8, the sterilizing water discharge pipe and the process water discharge pipe may be connected to each other through a backwash pipe. In this case, as shown in FIG. 8, V 6, v 7, v 8, and v 9, respectively, depending on the situation.

(V / v8, v / v9) of the treated water discharge pipe and the valve (v / v8, v / v9) of the backwash pipe are opened first, / v7 to close the sterilization water to be stored in the process water storage unit 500 '.

When the UV filtration unit 400 'is backwashed, the sterilized water discharge pipe v / v6 and the valve v / v9 of the process water discharge pipe are closed and the valves v / v7 and v / The valve v / v8 of the process water discharge pipe may be opened to allow the process water stored in the process water storage unit 500 'to flow into the UV filtering unit 400' as wash water. The washing water flowing into the UV filtering unit 400 'preferably forms a vortex that rotates along the inner wall of the inner housing 420 to increase the washing effect.

Further, a backwash pump may be additionally installed in the backwash pipe or the process water discharge pipe, and an air blower may be additionally installed to perform backwashing to improve backwash efficiency, if necessary.

At this time, the valve (v / v5) connected to the precipitation storage part 300 'is opened to allow the washing water having passed through the UV filtering part 400' to smoothly flow into the precipitation storage part 300 ' It is desirable to lower the level of the sediment storage section 300 'by withdrawing the sludge.

When the treated water stored in the treated water storage unit 500 'is supplied to a necessary site for reuse, the valve v / v7 of the backwash pipe is closed and the valves v / v8 and v / v9 to open the treated water stored in the treated water storage unit 500 'to be discharged to the outside.

8, the upper part of the primary foreign substance collecting part 100 ', the secondary foreign substance collecting part 200', the sediment storing part 300 'and the UV filtering part 400' An inspection port 700 for maintenance can be separately formed.

The present invention is not limited to the above-described specific embodiments and descriptions, and various modifications can be made to those skilled in the art without departing from the gist of the present invention claimed in the claims. And such modifications are within the scope of protection of the present invention.

100: primary foreign matter collecting apparatus 100 ': primary foreign matter collecting unit
200: Secondary foreign matter collecting apparatus 200 ': Secondary foreign matter collecting unit
300: Precipitation reservoir 300 ': Precipitation reservoir
400: UV filter 400 ': UV filter
500: treated water tank 500 ': treated water storage unit
110: coarse screen 120: coarse screen
310: sludge collector 320: sludge storage tank
330: Wear 410: outer housing
411: raw water inlet 412: filter medium
420: inner housing 421: filter medium prevention plate
422: ultraviolet lamp 423: treated water outlet
424: guide vane 425: bubble generator
600: support member 700: maintenance check port
A: Filtration space B: Sterilization space

Claims (15)

A primary foreign matter collecting apparatus (100) for removing foreign matter from the collected rainwater;
A second foreign matter collecting apparatus 200 for removing fine foreign matter from rainwater discharged from the primary foreign matter collecting apparatus 100;
A sediment storage tank 300 for accumulating rainwater discharged from the secondary particle collecting apparatus 200 and precipitating residual foreign matter in the lower portion; And
And a UV filter (400) for filtering and sterilizing the supernatant of the sediment storage tank (300)
The UV filter (400)
An outer housing 410 having a raw water inlet 411 formed at one side thereof; A sterilizing space B is formed in the inside of the filtration space A and an inner housing 420 formed with a treated water outlet 423 at one side is inserted into the outer housing 410 with a space therebetween, ), ≪ / RTI >
A filter medium 412 for filtering impurities of raw water is filled in the filtration space A and an ultraviolet lamp 422 for sterilizing filtered water with impurities removed is installed in the sterilization space B,
A filtering material loss preventing porous plate 421 for communicating the filtration space A and the sterilizing space B is formed at a lower portion of the inner housing 420,
The filtered water having passed through the filter medium 412 flows into the sterilizing space B through the filter medium loss preventing porous plate 421,
A guide vane 424 for forming a vortex in the filtered water having passed through the filtering medium loss prevention porous plate 421 in the lower part of the sterilizing space B is formed to surround the ultraviolet lamp 422, The ultraviolet lamp 422 rotates about the center axis,
Wherein a bubble generator (425) for discharging air bubbles for increasing sterilizing power is formed in a lower part of the ultraviolet lamp (422) installed in the sterilizing space (B). delete The method according to claim 1,
The second foreign material collecting apparatus 200 is positioned above the sediment storage tank 300 and the rainwater overflowing without passing through the second foreign material collecting apparatus 200 flows directly into the sediment storage tank 300 . The method according to claim 1,
And a sludge collector (310) for collecting foreign substances precipitated in the lower part of the sediment storage tank (300). delete delete The method according to claim 1,
Wherein the inner housing (420) is removable from the outer housing (410). The method according to claim 1,
Wherein the raw water introduced from the raw water inlet (411) forms a vortex that descends and rotates along the inner wall of the outer housing (410). delete delete The method according to claim 1,
Wherein the air bubble is a micro bubble having a diameter of 10 to 100 占 퐉. A primary foreign matter collecting unit 100 'for removing foreign matter from the collected rainwater; A secondary foreign matter collecting part 200 'for removing fine foreign substances in the rainwater flowing from the primary foreign matter collecting part 100'; A sediment storage section 300 'for storing the rainwater introduced from the secondary particle collector 200' and precipitating the residual foreign matter at the bottom; And a UV filtering unit 400 'for filtering and sterilizing the rainwater introduced from the upper part of the sediment storage unit 300'
A screen screen 110 for collecting foreign matter in rainwater is installed on the partition between the primary foreign matter collecting unit 100 'and the secondary foreign matter collecting unit 200', and the secondary foreign matter collecting unit 100 ' And a sediment screen 210 for collecting fine foreign substances in the rainwater is installed on the partition between the sediment storage section 300 '
A ware 330 for introducing the supernatant in the sediment storage unit 300 'to the UV filtering unit 400' is formed on the upper part of the partition between the sediment storage unit 300 'and the UV filtering unit 400'
The UV filter 400 '
An outer housing 410 having a raw water inlet 411 formed at one side thereof; A sterilizing space B is formed in the inside of the filtration space A and an inner housing 420 formed with a treated water outlet 423 at one side is inserted into the outer housing 410 with a space therebetween, ), ≪ / RTI >
A filter medium 412 for filtering impurities of raw water is filled in the filtration space A and an ultraviolet lamp 422 for sterilizing filtered water with impurities removed is installed in the sterilization space B,
A filtering material loss preventing porous plate 421 for communicating the filtration space A and the sterilizing space B is formed at a lower portion of the inner housing 420,
The filtered water having passed through the filter medium 412 flows into the sterilizing space B through the filter medium loss preventing porous plate 421,
A guide vane 424 for forming a vortex in the filtered water having passed through the filtering medium loss preventing plate 421 is formed in a lower part of the sterilizing space B so as to surround the ultraviolet lamp 422, The ultraviolet lamp 422 rotates about the center axis,
Wherein a bubble generator (425) for discharging air bubbles for increasing sterilizing power is formed in a lower part of the ultraviolet lamp (422) installed in the sterilizing space (B). 13. The method of claim 12,
The lower part of the primary foreign matter collecting part 100 ', the secondary foreign matter collecting part 200' and the sediment storing part 300 'is connected to a pipe line for discharging the foreign substances precipitated in each part to the outside Features rainwater treatment system. 14. The method of claim 13,
V / v3, v / v4, and v / v5 for controlling whether or not the foreign substances precipitated in the respective portions are discharged,
Wherein the valve (v / v5) connected to the precipitation storage part (300 ') is opened to lower the water level of the sediment storage part (300') when the backwash is lower than the UV filtering part (400 '). 15. The method of claim 14,
The waste water is discharged from the UV filtering unit 400 'to the lower part of the primary foreign substance collecting unit 100', the secondary foreign substance collecting unit 200 ', the sediment storing unit 300' and the UV filtering unit 400 ' And a process water storage unit (500 ') for storing the process water.

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