KR101002809B1 - Treating device of early rainwater - Google Patents

Abstract

PURPOSE: An initial rainwater treatment apparatus and a method thereof are provided to remove precipitating foreign substances and floating foreign substances from initial rainwater at the same time. CONSTITUTION: An initial rainwater treatment apparatus comprises a main body(10), a foreign substance collector(20), a settling tank(30), a swirl screen(40), and a filter tub(50). The main body includes inlet(11) and an outlet(12) connected to the inside, and comprises the settling tank and the filter tub in the inside. The foreign substance collector collects precipitating foreign substances and floating foreign substances from the initial rainwater inserted through the inlet.

Description

Initial excellent treatment device and method {TREATING DEVICE OF EARLY RAINWATER}

The present invention relates to an initial excellent treatment apparatus and method, and more particularly to an initial excellent treatment apparatus and method that can efficiently remove various contaminants contained in the initial excellent.

In general, pollutants that generate water pollution include factory wastewater, livestock wastewater, and domestic wastewater, and these pollutants are point sources that can specify the source of pollution, and boiling points that are difficult to accurately define or cause the contamination. It is classified as a pollution source.

In particular, nonpoint sources such as snow and rain contaminate water quality when directly introduced into rivers or rivers without going through a specific purification facility, and an initial excellent treatment facility is intended to solve these problems.

Early treatment facilities are classified into storage type, infiltration type, vegetation type and device type according to their treatment method.

The storage type removes particulate contaminants in the initial rainwater by sedimentation, while the infiltration type reduces the runoff of rainwater by increasing the underground penetration capacity of rainfall runoff, and also removes contaminants during the underground penetration process. And to remove contaminants through vegetation filtration, etc., the device type is mainly used for the purpose of removing various suspended solids and the like.

Among them, the device-type initial excellent treatment facility is not only excellent in pollution treatment efficiency but also easy to maintain and use thereof.

Conventional device-type initial excellent treatment facility, as disclosed in Korean Patent No. 10-0904177, the tea house manhole 100, the screen tank 110, the screen tank inlet 111, filtration tank 120, activated carbon filtration It is configured to include a filter 122, the discharge tank 130 and the rainwater outlet 131. And the bottom surface of the screen tank 110 and the filtration tank 120 is formed with an inclined surface along the flow direction of the initial excellent water in order to induce a rapid transfer rate of the initial excellent, the screen tank 110, the wood screen 112 and The fine screen 113 is sequentially mounted along the flow direction of the initial rainwater, and the overflow wall that separates the teahouse manhole 100 and the discharge tank 130 from the teahouse manhole 100 to the discharge tank 130. It is formed lower than the height of the partition wall to flow directly.

However, since the initial excellent treatment device as described above is configured to sequentially pass through the tea manhole 100, the screen tank 110, the filtration tank 120 and the discharge tank 130, the parts included in the initial excellent water There is a problem that a mixture of oily contaminants, soluble contaminants and fine contaminants may accumulate in a specific zone.

That is, when sedimentary contaminants accumulate in the initial excellent house manhole 100, the water level is increased compared to the initial excellent amount introduced. Accordingly, the water level of the secondary manhole 100 reaches a limit even with a small amount of initial excellent inflow. There is a problem that the initial excellent discharged directly to the discharge tank 130 without filtration of contaminants. In order to solve this problem, it is necessary to clean the accumulated sediment contaminants periodically.

In addition, there is a limit to completely remove the various contaminants contained in the initial excellent, in particular, there is a disadvantage that the removal efficiency for soluble contaminants is considerably lowered.

An object of the present invention is to provide an initial excellent treatment apparatus and method capable of easily and efficiently removing various contaminants and fine contaminants contained in the initial excellent.

An initial excellent treatment apparatus according to the present invention, the inlet pipe and the discharge pipe communicating with each inside is formed, the interior space is partitioned and the main body is provided with a precipitation tank and a filtration tank; It is provided inside the main body, and collects the trap of suspended matter and water-soluble impurities in the initial excellent water flowing through the inlet pipe; A sedimentation tank installed at the lower part of the contaminant collecting part and storing sedimentary contaminants in the initial excellent water and the initial excellent water; A swirl screen installed on an upper side of the settling tank to filter out the sedimentary contaminants in the stored initial rainfall and to re-extract the filtered settling contaminants into the settling tank to settle; A flow path is connected to supply the initial excellent water passing through the swirl screen, and comprises a filtration tank which removes the fine contaminants in the initial initial water supplied and discharges the initial excellent water to the outside through the discharge pipe; The swirl screen may include: an outer container having an inlet through which initial rainwater is introduced and an outlet through which sediments are discharged; A spaced inside the outer container, the lower part of which is open to communicate with the outer container, and an inner container having a flow path tube for supplying initial excellent water to the filtration tank; Due to the difference in the water level of the settling tank and the filtration tank is achieved by allowing the initial rainwater flows naturally from the settling tank to the filtration tank.

It is preferable that the contaminant collecting part is made of a collecting net, and the collecting net is supported by the steel grating installed on the main body.

The inlet is preferably formed around the top and outer circumferential surface of the outer container.

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It is preferable that the inside of the main body is provided with a side wall for separating the settling tank and the filtration tank, the side wall is formed in the upper and lower openings in communication with the filtration tank, the flow path tube is in communication with the flow path.

The filtration tank includes a fluidized bed filter for collecting particulate contaminants; A fixed mesh network installed on upper and lower portions of the fluidized bed medium; A porous fine aggregate supported by the fixed mesh network installed on the upper portion of the fluidized bed medium and preventing outflow of contaminants collected in the fluidized bed medium; Located above the porous fine aggregate, it is preferable that a fiber yarn filter for adsorbing and filtering fine contaminants is provided.

It may further include a bypass pipe for directly discharging the initial excellent water supplied to the settling tank or the filtration tank to the discharge port.

Of course, it may further include a trickle extraction pipe for taking out the impurities sedimented in the settling tank, a discharge pipe for discharging the initial excellent water stored in the settling tank.

And the initial excellent treatment method according to the present invention, the initial excellent supply step of supplying a controlled initial inflow amount; A fines collecting step for collecting the floating fines and the soluble fines in the initial excellent water supplied through the initial excellent supplying step; A sediment sedimentation step of sedimenting sedimented contaminants in the initial excellent water after the sediment capture step; A fine contaminant removing step of removing fine contaminants in the initial excellent rainwater that passed through the sediment settling step; There is a technical feature that comprises an initial excellent discharge step of discharging the initial excellent water after the fine contaminant removal step.

The fine contaminant removing step is the first filtration step using the fluidized bed medium; A second filtration step of filtering the initial excellent water passing through the first filtration step using a porous fine aggregate; It is preferable that the initial superiority passing through the secondary filtration step is composed of a third filtration step of filtration using a fiber yarn filter.

According to the present invention, the sedimentary contaminants and the floating contaminants in the initial excellent water can be removed together, and the soluble contaminants can be effectively prevented from being dissolved in the initial excellent water.

In addition, fine contaminants in the initial excellent from which the contaminants have been removed are completely removed while passing through a filtration tank equipped with a fluidized bed filter medium, a porous fine aggregate, and a fiber yarn filter, thereby maximizing initial purification efficiency.

By providing a bypass pipe, it is possible to easily eliminate the initial excellent reverse flow phenomenon.

1 is a perspective view showing a conventional initial excellent treatment device,
2 is a flow chart showing an initial excellent treatment method according to the present invention,
3 is a perspective view showing an initial excellent treatment device according to the present invention,
4 is a cross-sectional view of FIG.
5 is a perspective view showing a swirl screen of the initial excellent treatment device according to the present invention,
6 is a cross-sectional view showing a swirl screen use state of the initial excellent treatment device according to the present invention,
7 is a cross-sectional view showing the interior of the filtration tank of the initial excellent treatment device according to the present invention,
8 is a state diagram used in the initial excellent treatment apparatus according to the present invention.

Hereinafter will be described in more detail with reference to the accompanying drawings showing an embodiment of the present invention.

The present invention relates to an initial excellent treatment apparatus and method for completely removing various contaminants and fine contaminants in the initial excellent, the initial excellent treatment method as shown in FIG. Supply step (S100); A fines collecting step (S200) for collecting the floating fines and the soluble fines in the initial excellent water supplied through the initial excellent supplying step (S100); A sediment sedimentation step (S300) for filtering and sedimenting sediment contaminants in the initial rainwater after the sediment trapping step (S200); Fine contaminant removing step (S400) of removing fine contaminants in the initial rainwater having passed through the fine matter precipitation step (S300); It consists of an initial excellent discharge step (S500) for discharging the initial excellent water through the fine contaminant removal step (S400) to the outside.

An initial excellent treatment step will be described in more detail with reference to FIGS. 2 and 8 as follows.

① Initial excellent supply stage (S100)

Initial excellent supply step (S100) is a step of supplying a predetermined amount of the initial excellent water to the inlet pipe 11 formed in the main body 10, if the supply amount of the initial excellent water supplied is flooded the entire interior of the main body 10 Since the pollutant purification operation may not be performed smoothly, it is a step of properly adjusting the initial supply amount according to the discharge rate through the discharge pipe 12 formed in the main body 10.

② Collection of trash (S200)

Collecting the contaminants (S200) is a step of removing the large particles of large particles in the initial excellent water supplied to the inside of the body 10, such as floating impurities and soluble impurities.

Particularly, soluble contaminants are a kind of contaminants that can be dissolved in water if they are immersed in water for a long time. If such soluble contaminants are introduced intact, water pollution may deteriorate. Do.

③ sediment sedimentation step (S300)

Sediment sedimentation step (S300) is a step of precipitating the sedimentary suspended solids in the initial rainwater through the sediment collecting step (S200), the sedimentary sediments are accumulated and accumulated as the initial rainfall in the sedimentation tank 30 to the appropriate level, The initial rainwater filtered as the precipitated sediment is passed through the swirl screen 40, and the precipitated sediment is regenerated and is filtered.

At this time, the flow rate of the initial rainwater flowing into the sedimentation tank 30 is large, and if the flow rate is fast, the sedimentary contaminants that float in the initial rainwater may not be precipitated because the initial rainwater fluctuates rapidly and reaches an appropriate level. In this case, the swirl screen 40 suppresses fluctuations of the initial excellent rainfall to precipitate the sedimentary contaminants floating in the initial rainfall, and discharges the filtered sedimentary contaminants to the sedimentation tank 30 to settle in the sedimentation tank 30.

④ fine contaminant removal step (S400)

Fine contaminant removal step (S400) is the primary filtration step (S410) using the fluidized bed medium 51; A second filtration step (S420) of filtering the initial excellent water passing through the first filtration step (S410) using the porous fine aggregate 53; It consists of a tertiary filtration step (S430) for filtering the initial excellent water passing through the secondary filtration step (S420) using the fiber yarn filter 54, through which the fine contaminants remaining in the initial excellent water are completely removed.

The fluidized bed media 51, the porous fine aggregate 53, and the fiber yarn filter 54 are sequentially stacked inside the filtration tank 50, so that the initial excellent water level from the bottom of the filtration tank 50 rises naturally. Pass through the bonus material 51 and the porous fine aggregate 53 and the fiber yarn filter 54.

⑤ Initial excellent discharge stage (S500)

The initial excellent discharge step (S500) is a step of discharging the initial excellent water in the state in which the fine contaminants have been removed through the fine contaminant removing step (S400) to the outside through the discharge pipe 12 of the main body 10 to discharge to the river or river. .

In the initial excellent treatment apparatus according to the present invention, as shown in Figure 3 and 4, the inlet pipe 11 and the discharge pipe 12 to communicate with each other is formed, the internal space is partitioned and settling tank 30 and A main body 10 provided with a filtration tank 50; A trap collecting part 20 provided inside the main body 10 to collect floating fines and water soluble fines in the initial rainwater flowing through the inlet pipe 11; A sedimentation tank 30 installed at the lower portion of the contaminant collecting part 20 to store the sedimentary contaminants in the initial excellent water and the initial excellent water; A swirl screen (40) installed on one side of the settling tank (30) to filter out the sedimentary contaminants in the stored initial rainfall, and to re-extract the filtered sedimentary contaminants into the settling tank (30); A flow path 61 is connected to supply initial rainwater that has passed through the swirl screen 40, and removes fine contaminants in the supplied initial rainwater and discharges initial rainwater to the outside through the discharge pipe 12. Consisting of; The swirl screen 40 includes: an outer container 41 having an inlet opening 41A and 41B through which initial rainwater is introduced and an outlet opening 44 through which sediments are discharged; The inner container is spaced apart in the outer container 41, the lower part is opened to communicate with the outer container 41, and the inner container has a flow path tube 43 for supplying the initial excellent water to the filtration tank 50 on the side. (42); Due to the difference in water level between the settling tank 30 and the filtration tank 50, the initial excellent water flows naturally from the settling tank 30 to the filtration tank 50 to be discharged.

The main body 10 has a rectangular box shape, and the side wall 60 for isolating the settling tank 30 and the filtration tank 50 is formed therein.

The side wall 60 is formed with an upper and lower open flow path 61 communicating with the filtration tank 50, and an opening hole 62 is formed at the lower end of the flow path 61, so that the initial excellent difference from the lower portion of the filtration tank 50 is different. Will rise.

The initial excellent water flowing through the inlet pipe 11 of the main body 10 passes through the settling tank 30 and the filtration tank 50 in order to remove various contaminants and fine contaminants contained therein, thereby discharging the exhaust pipe of the main body 10. It is discharged to the outside through 12.

The contaminant collecting unit 20 and the inlet pipe 11 of the main body 10 to remove bulky contaminants or floating and soluble contaminants in the initial excellent water flowing through the inlet pipe 11 of the main body 10 and the like. It is installed adjacently.

The contaminant collecting unit 20 is composed of a collecting net 21, and the collecting net 21 is stably supported by a steel grating 22 connected to the main body 10.

On the other hand, the reason for supporting the collection network 21 by using the steel grating 22 is to prevent the collection network 21 is submerged in the initial excellent water stored in the settling tank 30 so that soluble impurities contained in the initial excellent precipitation tank ( This is to prevent contamination by melting in water stored in 30).

The sedimentation tank 30 is a place where the initial rainwater stored in the sedimentation tank 30 is stored in the initial rainwater, which is located inside the main body 10 and passes through the contaminant collecting unit 20. 11) the fluctuations are severely caused by the initial rainwater introduced into the sedimentation tank 30 through the sedimentary contaminants in the initial rainwater, so that the precipitation of the sedimentary contaminants is not easy. Accordingly, the settling tank 30 is provided with a swirl screen 40 for efficiently settling sedimentary contaminants.

On the other hand, the sedimentation tank 30 is set so that the level of the initial excellent water stored therein is always higher than the installation height of the discharge pipe 12 of the main body 10, which is higher than the lowest level of the initial excellent water stored in the sedimentation tank 30 By setting the highest water level of the initial excellent water passing through the low), the initial rainfall of the sedimentation tank 30 naturally flows to the filtration tank 50 due to the high and low difference of the initial excellent water level stored in each of the sedimentation tank 30 and the filtration tank 50. 12) to be discharged. Due to such a constitutional feature, the present invention does not need to install a separate mechanical device such as a motor and a pump for transferring the initial excellent water, thereby supplying and discharging the initial excellent water without the use of electric energy, Fine contaminants can be removed easily and efficiently.

And the inside of the main body 10 is provided with a contaminant extraction pipe 31 for removing and removing the contaminants settled on the bottom of the settling tank 30 to the outside, and there is a fear that the water quality deteriorates if the stored initial rain is left for a long time. Therefore, when the supply of the initial excellent water is stopped, the discharge pipe 32 for discharging the initial excellent water in the settling tank 30 to the outside is installed.

Swirl screen 40 is a device for suppressing the fluctuations of the initial rainwater to precipitate the sedimentary contaminants in the initial rainwater discharged to the sedimentation tank 30, the initial rainwater in the state in which the sediment is removed is sent to the filtration tank (50).

5 and 6, the swirl screen 40, the outer container 41 is formed with an inlet (41A, 41B) for the initial rainwater is introduced, the outlet 44 for the discharge of sediment; The inner container 42 is spaced in the outer container 41, the lower part is opened to communicate with the outer container 41, and the flow path tube 43 for supplying initial excellent water to the filtration tank 50 is formed at the side. It consists of.

The outer container 41 has a hopper shape in which the lower portion is inclined, and is firmly supported by the steel grating 22. The inlets 41A and 41B are formed in plural at regular intervals around the upper end and the outer circumferential surface of the outer container 41.

The outlet 44 is located below the outer container 41, and the precipitate discharged through the outlet 44 is precipitated in the settling tank 30.

The inner container 42 has a dual structure in which the diameter is smaller than that of the outer container 41 and is inserted into the outer container 41.

The inner container 42 is filled with an appropriate level as the lower surface of the inner container 42 is opened and initial rainwater introduced through the inlets 41A and 41B of the outer container 41 flows into the open portion of the bottom surface of the inner container 42. It is configured to.

The flow path tube 43 passes through the outer container 41 and communicates with the flow path 61 of the side wall 60, so that the initial excellent water in the inner container 42 passes through the flow path tube 43 of the side wall 60. It flows into the flow path 61.

Swirl screen 40 as described above can be calmed to the initial excellent water to prevent the inlet precipitates from flowing into the filter tank (50).

The filtration tank 50 includes a fluidized bed filter 51 for collecting particulate contaminants; Fixed mesh nets 52A and 52B respectively installed on the upper and lower portions of the fluidized bed medium 51; A porous fine aggregate 53 supported by a fixed mesh network 52A installed on the upper portion of the fluidized bed medium 51 and preventing the outflow of contaminants collected in the fluidized bed medium 51; Located on top of the porous fine aggregate 53, a fiber yarn filter 54 for adsorbing and filtering fine contaminants is provided.

The fixed mesh nets 52A and 52B stably support the fluidized bed media 51 and the porous fine aggregate 53 and prevent them from escaping to the outside.

The fluidized bed filter 51, the porous fine aggregate 53, and the fiber yarn filter 54 are used to remove microcontaminants remaining in the initial excellent water. The fluidized bed filter 51 is used to remove contaminants through aerobic and anaerobic microorganisms. Decomposing structure, porous fine aggregate 53 is a configuration to remove and remove the soluble material and fine particles by using the porous, the fiber yarn filter 54 is through the pipe through which the suspended solid material using a flexible fiber yarn It is a configuration to filter.

On the other hand, the initial excellent water passing through the fluidized bed filter 51 located in the lower portion of the filtration tank 50 passes through the porous fine aggregate 53 and the fiber yarn filter 54 in order due to the water level rise, the fiber yarn filter ( The initial excellent water rising to the upper surface of 54 is discharged to the outside through the discharge pipe 12 of the main body 10.

As such, the level of the filtration tank 50 rises is related to the initial water level stored in the precipitation tank 30. Since the water levels in the precipitation tank 30 and the filtration tank 50 communicating with each other are about to remain the same, the filtration tank ( The water level of 50) passes through the fluidized bed filter 51, the porous fine aggregate 53, and the fiber yarn filter 54 in order in the process of increasing in accordance with the level of the settling tank 30.

The fluidized bed media 51, the porous fine aggregate 53, and the fiber yarn filter 54 are each used independently in a filtration facility for improving water quality, and a detailed description thereof will be omitted.

The bypass pipe 70 is a hollow pipe installed vertically through the filtration tank 50. When the initial rainwater is supercharged into the main body 10, the initial rainwater supercharged through the bypass pipe 70 is bypassed and discharged. By immediately discharging to the outside through the (12), it is possible to prevent the configuration in the main body 10 is submerged by the initial excellent.

In addition, even if the normal flow rate is supplied into the main body 10, when the water level of the bypass pipe 70 rises and overflows, it means that the filtration components in the filtration tank 50 are blocked by foreign matter, thereby cleaning the filtration tank 50. And replacement cycles can be determined easily and accurately.

On the other hand, in addition to the bypass pipe 70 installed inside the filtration tank 50, the upper surface of the contaminant collecting unit 20 and the side wall 60 can be opened to form an additional bypass pipe.

The initial excellent treatment device configured as described above can efficiently remove floating impurities and soluble impurities present in the initial rainfall, and also can easily remove sedimentary foreign substances and fine contaminants such as earth and sand to clean the initial excellent. Efficiency can be further enhanced.

10: main body 11: inlet pipe
12: discharge pipe 20: contaminant collecting unit
21: collection network 22: steel grating
30: sedimentation tank 31: contaminant extraction pipe
32: discharge pipe 40: swirl screen
41: outer container 41A, 41B: inlet
42: inner container 43: flow path tube
44 outlet 50 filtration tank
51: fluidized bed media 52A, 52B: fixed mesh network
53: porous fine aggregate 54: fiber yarn filter
60 side wall 61 flow path
62: opening hole 70: bypass pipe

Claims (10)

An inlet pipe 11 and an outlet pipe 12 communicating therein, respectively, and having a space therein, the main body 10 having a settling tank 30 and a filtration tank 50;
A trap collecting part 20 provided inside the main body 10 to collect floating fines and water soluble fines in the initial rainwater flowing through the inlet pipe 11;
A sedimentation tank 30 installed at the lower portion of the contaminant collecting part 20 to store the sedimentary contaminants in the initial excellent water and the initial excellent water;
A swirl screen (40) installed on one side of the settling tank (30) to filter out the sedimentary contaminants in the stored initial rainfall, and to re-extract the filtered sedimentary contaminants into the settling tank (30);
A flow path 61 is connected to supply initial rainwater that has passed through the swirl screen 40, and removes fine contaminants in the supplied initial rainwater and discharges initial rainwater to the outside through the discharge pipe 12. Consisting of;
The swirl screen 40 includes: an outer container 41 having an inlet opening 41A and 41B through which initial rainwater is introduced and an outlet opening 44 through which sediments are discharged; The inner container is spaced apart in the outer container 41, the lower part is opened to communicate with the outer container 41, and the inner container has a flow path tube 43 for supplying the initial excellent water to the filtration tank 50 on the side. (42);
Initial excellent water treatment apparatus characterized in that the initial excellent water flows naturally from the settling tank 30 to the filtration tank 50 due to the difference in the water level of the settling tank (30) and the filtration tank (50).
The method according to claim 1,
The clutter collecting unit 20 is made of a collecting network 21,
The collection network 21 is an initial excellent treatment apparatus, characterized in that supported by the steel grating 22 is installed in the main body (10).
delete The method according to claim 1,
The inlet (41A, 41B) is the initial excellent treatment device, characterized in that formed around the top and outer peripheral surface of the outer container (41).
The method according to claim 1 or 4,
The main body 10 is provided with a side wall 60 that isolates the settling tank 30 and the filtration tank 50, and the side wall 60 has an upper and lower open flow path 61 communicating with the filtration tank 50. ) Is formed,
The flow path tube 43 is in communication with the flow path 61, the initial excellent treatment device.
The method according to claim 1,
In the filtration tank 50,
Fluidized bed media 51 for collecting particulate contaminants; Fixed mesh nets 52A and 52B respectively installed on the upper and lower portions of the fluidized bed medium 51; A porous fine aggregate 53 supported by the fixed mesh network 52A installed on the fluidized bed media 51 and preventing the outflow of contaminants collected in the fluidized bed media 51; Located at the top of the porous fine aggregate 53, the initial excellent treatment apparatus, characterized in that the fiber yarn filter 54 for adsorbing and filtering fine contaminants.
The method according to claim 1,
Initial excellent water treatment apparatus further comprises a bypass pipe (70) for directly discharging the initial excellent water supplied to the settling tank (30) or the filtration tank (50) to the discharge pipe (12).
The method according to claim 1,
Initial excellent treatment, characterized in that it further comprises a discharge pipe (32) for discharging the initial excellent water stored in the sedimentation tank 30, for taking out the contaminant precipitated in the sedimentation tank (30) Device.
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