KR100949388B1 - Purification equipment for a city and draining system using thereof - Google Patents

Abstract

PURPOSE: A rain water filtration device and a drain system using the same are provided to easily purity waste, particulate pollutants, heavy metals, T-N, bacteria etc included in rain water by pre-processing the rain water through a screening tank. CONSTITUTION: A rain water filtration device includes the following: a screening tank with a screen, a filter bag and a media filter; a filtering tank(120) with a soil medium layer used for purifying rainwater transferred from the screening tank; and a discharge tank(130) discharging the rainwater purified from the filtering tank. The screening tank includes two or more rainwater inlets(111) and a rainwater outlet. The filtering tank includes a porous supply pipe, a porous discharge pipe and a bypass pipe.

Description

Urban stormwater purification system and drainage system using the same {PURIFICATION EQUIPMENT FOR A CITY AND DRAINING SYSTEM USING THEREOF}

The present invention relates to a device for purifying rainwater and a system for draining rainwater.

Rainwater purifying apparatus is a device for purifying rainwater introduced from the outside, and discharges the purified rainwater to the outside.

In general, rainwater that has fallen to the ground is drained to public waters through drainage systems, where it is mixed with dust and garbage.

In particular, in urban areas, since pollutants accumulated on roads are mixed with rainwater, there is a problem that seriously causes pollution of public waters by rainwater.

As a technique for purifying contaminated rainwater, Korean Patent No. 0869140 (Inventive name: Pollution Purification Device) proposed by the present applicant is known.

Korea Registered Patent No. 0869140 is a chamber in which a discharge port is formed so that contaminated water can be discharged, a chamber cover seated in an upper portion of the chamber and a passage hole formed so that contaminated water can pass therethrough, and disposed in the chamber and contaminated from contaminated water flowing into the chamber. The present invention discloses a technology capable of effectively purifying nonpoint source by providing a filter bag for filtering a substance and a fixing device for fixing the filter bag to a chamber.

On the other hand, in addition to the Korean Patent Registration No. 0869140 proposed by the present applicant has been proposed through the Korean Patent Registration 0668479 (name: non-point pollutant treatment system) to purify the rainwater using the soil layer.

The cited technology provides a natural friendly non-point pollutant treatment system for purifying rainwater using a planted soil layer.

However, the cited technology has a structure in which rainwater immediately flows through the inlet of the stormwater purification device, and waste mixed with rainwater flows into the stormwater purification device and accumulates in the soil layer.

In addition, the cited technology has a structure in which rainwater introduced into the rainwater purifier does not stay in the soil layer and is discharged immediately, so that the purification capacity of the rainwater purifier may not be efficiently controlled according to rainfall.

The present invention is to provide a rainwater purifier to prevent the inflow of waste, etc. to the rainwater purifier, and to effectively control the purification capacity of the rainwater purifier according to rainfall by adjusting the discharge rate of rainwater.

Rain water purifying apparatus according to the present invention for achieving the above object, the screen tank having a screen for filtering rainwater; A filtration tank communicating with the screen tank and having a soil media layer for purifying rainwater transferred from the screen tank; Characterized in that it comprises a.

In addition, the screen tank, rainwater inlet through which rainwater is introduced; And rainwater outlet for discharging the rainwater flows into the filter tank; It includes, characterized in that the screen is installed in the rainwater inlet.

In addition, the screen tank is provided with a filter bag having 5 to 20 mesh, and a media filter having micropores having a diameter of 0.1 to 0.5 micrometers.

The screen tank may further include a heavy water inlet through which gray water is introduced.

In addition, the filtration tank, the hole supply pipe for receiving rainwater from the screen tank side; A pore discharge pipe for discharging rainwater that has passed through the soil media layer to the outside; And a bypass pipe installed across the inside, wherein the hole supply pipe, the hole discharge pipe, and the bypass pipe have a plurality of fluid access holes formed on an outer circumferential surface thereof.

The apparatus may further include a discharge tank communicating with the filtration tank and discharging the rainwater purified from the filtration tank, wherein the air hole discharge pipe is installed over the filter tank and the discharge tank, and inside the filter tank of the hole discharge pipe. The fluid access hole is formed in a portion located in the, characterized in that the flow control valve for adjusting the flow rate of rainwater supplied to the discharge tank in the portion located inside the discharge tank of the hole discharge pipe.

The rainwater discharger may further include a rainwater resupply device for resupplying rainwater discharged from the filtration tank to the filtration tank, and the rainwater resupply device may include a pump tank storing rainwater discharged from the filtration tank; A resupply pipe for transferring rainwater stored in the pump tank to the filtration tank; And a pump providing power to transfer rainwater stored in the pump tank. Characterized in that it comprises a.

In addition, the filtration tank is formed with an opening in the lower side, the opening is characterized in that the permeable fiber for passing the rainwater or the degree of fiber for blocking the entry of rainwater is installed.

In addition, the drainage system according to the present invention, the boundary stone is installed on the boundary between the driveway and sidewalk; A filtering tank having a screen tank having a screen for filtering rainwater and a soil filter layer for communicating with the screen tank and purifying the rainwater transferred from the screen tank; It includes, The boundary stone is characterized in that the guide flow path for guiding the rainwater flowing in the side of the road to the screen tank side.

The rainwater purifying apparatus according to the present invention includes a screen tank for pretreatment of rainwater flowing into the filtration tank, and the screen tank has a screen, a filter bag, and a media filter. Soluble substances such as heavy metals, TN (total nitrogen), bacteria and the like can be easily purified.

In addition, through the flow control valve installed in the hole discharge pipe it is possible to adjust the time the rainwater stays in the filtration tank according to the rainfall.

Accordingly, when the rainfall is small, the rainwater stays inside the filtration tank to increase the purification capacity of the filtration tank, and when the rainfall is heavy, the rainwater stays within the filtration tank so that the rainwater can be filtered quickly. This has the effect of optimizing the purification performance.

In addition, the structure in which the gray water flows in through the heavy water inlet and the structure of re-supplying the purified rainwater to the stormwater purification device are inhabited in the pores of the plant and the soil media, which are planted in the soil media regardless of precipitation. By preserving the microorganisms there is an effect that can uniformly maintain the performance of the stormwater purifier.

In addition, it is possible to change and set the function of the rainwater purifier by selectively installing the degree of fiber or permeable fiber in the opening formed on the lower side of the rainwater purifier. In other words, when the permeable fiber is installed in the opening, the groundwater of the soil may be recharged.

In addition, the drainage system according to the present invention is to install the storm water purifying device on the side of the side, and by replacing the boundary stone installed on the existing road with the boundary stone of the present invention can be drained after purifying rainwater falling on the roadway and India It works.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings, for the sake of brevity of description, overlapping descriptions will be omitted or compressed as much as possible.

1 is a perspective view showing a rainwater purifying apparatus according to a first embodiment of the present invention. 2 is a side cross-sectional view of the stormwater purification device of FIG. 1, FIG. 3 is a planar cross-sectional view of the stormwater purification device of FIG. 1, and FIG. 4 illustrates a part of the X-X 'cross section of the stormwater purification device of FIG. It is a cross section.

1 to 4, the storm water purifying apparatus 100 according to the present embodiment includes a screen tank 110, a filtration tank 120, and a discharge tank 130.

Here, the screen tank 110, the filtration tank 120, and the discharge tank 130 may be provided in combination after each independently manufactured, or may be provided by partitioning the inside of a single chamber using a partition wall. .

The screen tank 110 has a rainwater inlet 111 for introducing rainwater, a rainwater outlet 112 for discharging rainwater to the filtering tank 120, and a heavy water inlet 113 for introducing gray water. Equipped.

Rainwater inlet 111 is preferably formed on the upper side of the screen tank 110, the rainwater inlet 111 is provided with a screen 114 for filtering waste of rainwater.

Rainwater outlet 112 is preferably formed on the opposite surface to the filter tank 120 may be provided in plurality in accordance with the embodiment.

The heavy water inlet 113 is for introducing heavy water, where heavy water refers to purified water by a septic tank (not shown) and an advanced treatment tank (not shown) embedded in the ground.

The screen tank 110 is formed so that the upper portion is opened, and the cover 115 is provided with at least one through hole 115a and the handle portion 115b for introducing rainwater.

In addition, the screen tank 110 is provided with a filter bag 116 and the media filter (media filter) 117 for filtering the rainwater again.

The filter bag 116 is disposed on the top of the screen tank 110 to perform the function of filtering the fine particulate contaminants flowing into the screen tank 110.

The filter bag 116 is fixed to the screen tank 110 by a bolt or a fixing pin, or as close to the inner wall surface of the chamber to the filter bag 116 as disclosed in the Korean Patent No. 0869140 proposed by the applicant The close contact part and the close contact part may be fixed to the screen tank 110 by using a fixing part which fixes the position.

The filter bag 116 is formed of a fiber material such as natural fiber, synthetic fiber, permeable fiber, nonwoven fabric, and is preferably formed to have 5 to 20 mesh to filter particulate contaminants of a predetermined size.

In addition, the filter bag 116 may be additionally installed on the inside or the outside of the filter bag 116 to remove the oil component of the rain oil, the filter bag 116 in the lower portion of the filter bag 116 Filter bag support 118 may be installed.

The media filter 117 is used to adsorb and filter soluble materials, and is manufactured by mixing ferrite, pearlite, zeolite, activated carbon, and the like.

The median filter 117 is provided with micropores having a diameter of 0.1 to 0.5 micrometers to filter and adsorb not only soluble substances such as heavy metals such as copper, lead, zinc and mercury, but also TN (total nitrogen) and bacteria. It has the function and improves the water quality of rainwater so that the water purification effect can be visually confirmed.

The media filter 117 is spaced apart from the side wall of the screen tank 110 by a predetermined distance and disposed along the side wall. In this case, the media filter 117 may be provided in a form in which a plurality of blocks are stacked, and the media filter 117 may be easily installed through the stacking method of the blocks.

In addition, the median filter 117 further includes a bypass hole 117a for bypassing the rainwater when the rainwater exceeding the processing capacity of the screen tank 110 is introduced.

The rainwater flowing into the rainwater inlet 111 of the screen tank 110 through such a configuration is first filtered by the screen 114, and the like, and the particulate contaminants of the rainwater are filtered while passing through the filter bag 116. . In addition, the rainwater that has passed through the filter bag 116 passes through the media filter 117, and soluble substances such as heavy metals, T-N (total nitrogen), bacteria, and the like contained in the rainwater are further filtered.

The filtration tank 120 includes rainwater inlet hole 121 provided in communication with the rainwater outlet 112 of the screen tank 110, and rainwater outlet hole 122 for discharging rainwater inside the filtration tank 120 to the outside. In the filtration tank 120, a soil filter layer 123 for filtering rainwater through a biological action is provided.

Here, the rainwater outlet 112 of the screen tank 110 and the rainwater inlet 121 of the filtration tank 120 is connected through the hole supply pipe 124, the hole supply pipe 124 is a plurality of fluid access holes (124a) ).

The pore supply pipe 124 preferably has a U-shape in order to increase the surface area in contact with the soil filter layer 123, it may be provided in plurality in order to increase the transport amount of rainwater.

In addition, the rainwater outlet hole 122 is provided in communication with the rainwater supply hole 131 of the discharge tank 130, which will be described later, rainwater outlet hole 122 and rainwater supply hole 131 through the hole discharge pipe 125 Connected.

The hole discharge pipe 125 has a plurality of fluid access holes 125a like the hole supply pipe 124, and is preferably provided to have a U shape.

Soil filter layer 123 is filled in the interior of the filter tank 120, it is preferable that the soil layer so that the plant (t) can be planted, the opening portion of the upper portion of the filter tank 120 to the plant (t) A cover 126 having a mounting hole 126a and a handle 126b for planting is installed.

The soil media layer 123 performs the function of physically and biologically purifying rainwater through the pores and microorganisms, and the plant (gray water) introduced through the heavy water inlet 113 of the screen tank 110 ( t) can be prevented from being killed.

On the other hand, the filtration tank 120 is further provided with a bypass pipe 127 across the interior, such a bypass pipe 127 by directly connecting the screen tank 110 and the discharge tank 130 of the excellent over A function of preventing flow may be performed, and a plurality of fluid access holes 127a may be formed on the outer circumferential surface thereof.

Discharge tank 130 has a rainwater supply hole 131 for receiving rainwater from the filtration tank 120 side, rainwater discharge hole 132 for discharging rainwater to the outside of the discharge tank 130, the filtration tank 120 Rainwater outlet hole 122 and the rainwater supply hole 131 of the discharge tank 130 is connected through the oil hole discharge pipe (125).

The hole discharge pipe 125 is installed over the filtration tank 120 and the discharge tank 130, the fluid access hole (125a) is formed in the portion located inside the filtration tank 120 of the hole discharge pipe 125, the hole discharge pipe ( A flow rate control valve 133 is installed at a portion located inside the discharge tank 130 of 125 to adjust a feed amount of rainwater.

Through such a configuration, when the rainfall is small by adjusting the flow control valve 133 according to the rainfall, the rainwater stays inside the filtration tank 120 to increase the purification capacity of the filtration tank 120, and the rainfall is high In this case, it is possible to optimize the purification performance of the filtration tank 120 by shortening the time that rainwater stays inside the filtration tank 120 so that the rainwater can be quickly filtered.

5 is an exploded perspective view showing a second embodiment of the stormwater purifying apparatus according to the present invention.

Referring to FIG. 5, the rainwater purifying apparatus 500 according to the present exemplary embodiment is formed such that the lower side of at least one of the screen tank 510, the filtration tank 520, and the discharge tank 530 is opened, and the opening ( 540 may be provided with a permeable fiber 550 to pass the rainwater.

Through the permeable fiber 550 it is possible to recharge the groundwater of the soil by discharging the rainwater inside the rainwater purifier 500 to the downward direction.

On the other hand, instead of the permeable fiber 550, the opening 540 may be provided with a degree of fiber (not shown) to block the passage of rainwater, and the permeable fiber 550 or the degree of fiber selectively installed in the opening 540 As a result, the function of the rainwater purifying apparatus 500 can be changed and set.

6 is a schematic diagram schematically showing a third embodiment of the stormwater purifying apparatus according to the present invention.

As shown in FIG. 6, the rainwater purifying apparatus 600 according to the present embodiment includes a screen tank 610, a filtration tank 620, a discharge tank 630, and a rainwater re-supply device 640.

The configuration of the screen tank 610, the filtration tank 620, the discharge tank 630 according to the present embodiment is the screen tank 110, filtration tank 120 of the storm water purifier 100 according to the first embodiment of the present invention , Substantially the same as the configuration of the discharge tank 130, the detailed description thereof will be omitted.

The rainwater resupply device 640 includes a pump tank 641, a resupply pipe 642, and a pump 643.

The pump tank 641 is for storing the rainwater discharged through the discharge tank 630 via the filtration tank 620, the resupply pipe 642 to transfer the rainwater stored in the pump tank 641 to the filtration tank 620. Perform the function.

The pump 643 is installed in the resupply pipe 642 to provide power for conveying rainwater.

Meanwhile, branch pipes 644 and 645 may be additionally connected to the resupply pipe 642, and the branch pipes 644 and 645 may be transferred to the toilet of the building, or may be connected to a separate drainage facility. Rainwater can be transferred to public waters. At this time, the resupply pipe (642) and branch pipes (644, 645) are provided with discharge control valves (v1 to v3) to control the discharge of rainwater, respectively.

In addition, one side of the pump tank 641 may be installed with a penetration tank 650 connected through the penetration tank line 651.

The permeation tank 650 accommodates the purified rainwater as much as its own capacity allows, and performs the function of discharging rainwater received through the rainwater passage into the ground.

Through such a rainwater resupply device 640 it is possible to uniformly maintain the performance of the rainwater purifier 600 by preserving the microorganisms inhabiting the pores of the plant and the soil filter media regardless of precipitation. .

Next, a drainage system using the stormwater purifying apparatus according to the present invention will be described with reference to FIG. 7.

As shown in FIG. 7, the drainage system 700 includes a stormwater purifier 710 and a boundary stone 740 installed at a boundary between the sidewalk 720 and the driveway 730.

The stormwater purification device 710 is substantially the same as the stormwater purification device 100 according to the first embodiment of the present invention and its detailed description is omitted.

The boundary stone 740 is provided with a guide flow passage 741 for guiding the rainwater flowing on the roadway 730 side to the screen tank 711 side, and the guide flow passage 741 has a comb tooth shape to filter wastewater of rainwater. The screen member 742 is installed.

The drainage system 700 may be implemented by installing the storm water purifying apparatus 710 on the side of the sidewalk 720 and exchanging the boundary stone installed on the existing road with the boundary stone 740 of the present invention. As well as the rainwater flowing in the driveway 730 can be purified and drained.

In addition, the drainage system 700 according to the present invention may be installed in a plaza, a parking lot, etc. At this time, the rainwater flowing through the plaza or the parking lot is a through hole 712a of the cover 712 provided on the upper surface of the screen tank 711. It may be introduced into the screen tank 711 through.

As described above, the detailed description of the present invention has been made by way of the embodiments, but the above-described embodiments have only been described with reference to preferred examples of the present invention, and therefore, the present invention is not to be understood as being limited to the above embodiments. The scope of the present invention will be understood by the claims and equivalent concepts described below.

1 is a perspective view showing a rainwater purifying apparatus according to a first embodiment of the present invention.

2 is a side cross-sectional view of the stormwater purification device of FIG.

3 is a plan cross-sectional view of the stormwater purification device of FIG.

4 is a cross-sectional view taken along the line X-X 'of the stormwater purifying apparatus of FIG.

5 is an exploded perspective view showing a stormwater purifying apparatus according to a second embodiment of the present invention.

6 is a schematic diagram schematically showing a stormwater purifying apparatus according to a third embodiment of the present invention.

7 is a schematic diagram schematically showing a drainage system using the stormwater purifying apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: storm water purification device 110: screen tank

111: rainwater outlet 112: rainwater outlet

113: heavy water inlet 114: screen

116: filter bag 117: media filter

120: filtration tank 123: soil media layer

124: hole supply pipe 125: hole discharge pipe

127: bypass pipe 124a, 125a, 127a: fluid access hole

130: discharge tank 133: flow control valve

540: opening 550: permeable fiber

640: rainwater resupply device 641: pump tank

642: resupply pipe 643: pump

700: Drainage system 720: India

730: driveway 740: boundary stone

741: guide euro

Claims (9)

delete A screen tank having a screen for filtering rainwater; A filtration tank communicating with the screen tank and having a soil media layer for purifying rainwater transferred from the screen tank; And A discharge tank communicating with the filtration tank and discharging the rainwater purified by the filtration tank; Including, The screen tank, Two or more rainwater inlet in which the screen is installed, the rainwater is introduced; And Rainfall outlet for discharging introduced rainwater to the filter tank; Including; The filtration tank, A plurality of fluid access holes are formed on an outer circumferential surface thereof, and a hole supply pipe for receiving rainwater from the screen tank side; It is installed over the filtration tank and the discharge tank, a plurality of fluid access holes are formed on the outer peripheral surface of the portion located inside the filtration tank, the flow control valve for controlling the flow rate of rainwater is installed in the portion located in the discharge tank is the soil A pore discharge pipe for discharging rainwater that has passed through the filter bed to the outside; And A plurality of fluid access holes are formed on the outer circumferential surface, the bypass pipe is installed across the interior; Including, One of the two or more rainwater inlet is characterized in that the rainwater is formed so that rainwater flows from the side of the boundary stone installed at the boundary of the sidewalk and the sidewalk (step) is formed Storm purifier The method of claim 2, The screen tank is provided with a filter bag having 5 to 20 mesh, and a media filter having fine pores having a diameter of 0.1 to 0.5 micrometers. Storm purifier The method of claim 2, The boundary stone is formed with a guide passage connected to the side of the driveway side of the boundary stone so that the rainwater flowing on the side of the roadway flows into any one of the two or more rain inlet. Storm purifier delete delete The method of claim 2, Rainfall resupply device for resupply rainwater discharged from the filtration tank to the filtration tank; More, The rainwater resupply device, A pump tank in which rainwater discharged from the filtration tank is stored; A resupply pipe for transferring rainwater stored in the pump tank to the filtration tank; And A pump providing power to transfer rainwater stored in the pump tank; Characterized in that it comprises Storm purifier The method of claim 2, The filtration tank is formed with an opening in the lower side, The opening is characterized in that the permeable fiber for passing the rainwater or the degree of fiber for blocking the access of rainwater is installed Storm purifier delete

Images