KR100865253B1 - First flush stormwater treatment apparatus - Google Patents

Abstract

A nonpoint source pollutant reducing apparatus capable of automatically controlling the flow rate of first flush without using power is provided to prevent the deterioration of treatment efficiency or the generation of a backflow phenomenon by preventing problems due to overload of a first flush treatment tank and preventing floating adulterations from flowing into the treatment tank. A nonpoint source pollutant reducing apparatus capable of automatically controlling the flow rate of first flush without using power comprises: a flow equalization tank(100) for pre-treating the first flush by guiding first flush through an inlet(110) communicating with a canal; a first flush treatment tank(200) into which the first flush of the flow equalization tank flows via a communication path(210), and in which a filter screen(220) is installed to remove nonpoint source pollutants contained in the first flush; and a flow equalization unit(300) installed on the communication path to block first flush of a planned treatment quantity or more flowing into the first flush treatment tank or allowing the first flush to flow into the first flush treatment tank constantly, wherein a filter screen is formed in the center of the first flush treatment tank, the first flush flown in from the communication path flows from an outer part of the filter screen to an inner part thereof, and an outlet side of the filter screen has perforated holes larger than those of an inlet side of the filter screen. The flow equalization unit is comprised of a floating type automatic cutout valve(310).

Description

Non-point pollution reduction device which can adjust flow rate automatically without power {FIRST FLUSH STORMWATER TREATMENT APPARATUS}

The present invention relates to a non-point pollution reduction device capable of automatically adjusting the flow rate without power, and more particularly, the amount of initial rainwater flowing into the initial excellent treatment tank through the flow rate adjustment tank from the waterway to the flow rate beyond the treatment plan. It prevents the problems caused by the overload phenomenon of the initial excellent treatment tank in advance and prevents floating impurities from entering the treatment tank to prevent the degradation of treatment efficiency or reverse flow phenomenon. It relates to a non-point pollution reduction device capable of automatically adjusting the flow rate.

In general, pollutants include point pollutants and agricultural land, grassland, forest land, construction sites, mines, logging sites, waste disposal sites, landfills, etc., which are discharged from defined and limited point sources such as domestic sewage, industrial waste and livestock waste. Areas of discharge can be divided into nonpoint pollutants emitted from a wide range of nonpoint sources, such as urban, urban, road and industrial sites.

In case of contaminants with clear discharge points among the above pollutants, there are separate purification devices or wastewater treatment facilities installed at homes, factories, and livestock farms, but some of the pollutants are purified. Not only is the area wide, but most of it remains on the earth's surface, and it is the main cause of water pollution by entering the public water or groundwater such as rivers with initial rainwater.

In order to solve the above problems, a lot of purification facilities have been developed to purify the rainwater containing non-point pollutants so that only the purified rainwater flows into the river.

As a conventional example of the early excellent treatment apparatus as described above, it can be found in the "initial excellent treatment apparatus including a cartridge spiral screen" of the patent application No. 0800559 registered and filed by the applicant.

1 and 2 is a view showing an example of the conventional initial excellent treatment apparatus.

As shown in the prior art initial excellent treatment device, a water channel (1), flow control tank (2) and the initial excellent treatment tank (3),

The waterway 1 is a passage where rainwater is guided to a river, and a variable wear 1a capable of height adjustment is provided.

The flow rate adjusting tank 2 is a space in which the initial rainwater collected by the variable wear 1a is induced and stored and collected by the inlet port 2a inside the variable wear 1a of the water channel 1, An outlet 2b is formed to guide the initial rainwater containing the non-point pollutant to the sewage treatment plant, and a buoy-type automatic shutoff valve 2c is installed at the outlet 2b to automatically shut off when a predetermined amount of initial rainwater is supplied. It is done.

The initial excellent treatment tank 3 induces an initial excellent through an excellent induction path communicated with a water channel, and can be treated according to the properties of nonpoint pollutants included in the initial excellent by a cartridge spiral screen 3a installed therein. However, the cartridge spiral screen (3a) is composed of the inner surface and the outer surface, each through hole is formed, the filling is filled between the inner, outer surface, the inner surface is made of spiral to induce the initial excellent flow, the cartridge spiral At the bottom of the screen 3a, a deposit stack 3b is formed.

In the conventional initial excellent treatment device configured as described above, the initial excellent water containing a large number of non-point pollutants among the rainwater flowing along the waterway (1) is collected in the variable wear (1a) formed in the waterway (1) to the inlet (2a) Inflow into the flow control tank (2).

The initial excellent water introduced into the flow control tank 2 includes a large amount of soil, and the soil is accumulated in one space of the flow control tank 2 by the soil separation wall 2d, and the dredging pipe 4 Dredging periodically from the top to dredging cars.

The rainwater that overflowed the soil separation wall 2d is removed from the floating contaminants by the screen 2e, and is collected in a sewage treatment plant through an auto-labeled automatic shutoff valve 2c, and contains a high concentration of nonpoint pollutants included in the initial rainwater. Will purify.

On the other hand, if the flow rate increases due to the sustained rainfall, the buoy-type shutoff valve 2c is closed, thereby leading to low concentration rainwater to the initial excellent treatment tank 3, where rainwater flows into the rainwater induction furnace 3c. It is introduced into the cartridge spiral screen 3c while forming a vortex through it.

In addition, the cartridge spiral screen 3c has a plurality of through-holes formed on the inner surface and the outer surface so that the sedimentary contaminants other than the suspended matter are precipitated in the sediment storage unit 3b, which is dredged from the top by the dredging pipe 4. Dredging is periodically performed to remove soluble or soluble contaminants depending on the type of fillings installed between the inner and outer surfaces.

Rainwater treated in the initial excellent treatment tank 3 as described above is to flow back to the water channel 1 to be discharged to the river.

In addition, when the rain stops and the water level of the initial excellent treatment tank (3) and the flow control tank (2) is lowered, the buoy-type shut-off valve (2c) installed on the flow control tank (2) side is opened and the initial excellent treatment tank ( The rainwater mixed with the sedimentary contaminants in 3) is bypassed to the flow control tank 2 to prevent contamination of the water remaining in the initial excellent treatment tank 3.

However, the conventional initial excellent treatment device, because the flow rate flowing into the initial excellent treatment tank (3) can not block or adjust the rainwater flows into the initial excellent treatment tank (3) or more than the planned treatment amount, the problem caused by the overload phenomenon It can not be prevented in advance, there is a problem such as processing efficiency is lowered or a backflow phenomenon occurs.

That is, in the classification type conduits in which sewage and sewage flow into each conduit, when there is no need to discharge high concentration of initial rainwater to the sewage treatment plant, a device for adjusting the initial rainwater flowing into the initial rainwater treatment tank 3 is provided. It is not.

In addition, due to the centrifugal force, floating contaminants narrow the filtration surface of the screen and increase the sphere size of the treatment tank due to centrifugal force inside the cartridge spiral screen 3a installed in the initial excellent treatment tank 3, and the timing of occlusion soon arrives. There is a problem.

In addition, there is a problem that the inlet flow path (3c) is formed in the initial excellent treatment tank 3, and as a result, the civil engineering structure is large, thereby increasing the volume of the initial excellent treatment tank (3).

In addition, since the manpower or separate equipment is used to process the contaminants blocked by the screen 2e inside the flow control tank 2, maintenance is difficult.

The present invention has been made to solve such a conventional problem, the object is to constantly block or control the initial rainwater flowing into the initial rainwater treatment tank through the flow rate adjustment tank in the waterway more than the planned water treatment, constant It prevents problems caused by the overload of the initial excellent treatment tank in advance, and prevents non-floating contaminants from flowing into the treatment tank to reduce non-contamination of non-point pollution, which can be adjusted automatically without flow to prevent treatment efficiency or reverse flow. In providing a device.

In addition, another object of the present invention is to widen the filter screen filtration surface of the initial excellent treatment tank and thereby the size of the sphere can be miniaturized, to extend the time of occlusion of the filter surface, and also to the outflow side of the filter screen The filter surface of the non-pollution non-pollution pollution reduction device that can control the flow rate automatically to reduce the volume of the initial excellent treatment tank by eliminating the inflow inflow by making the perforation larger than the inflow side. In providing.

In addition, another object of the present invention is to prevent the flow of floating contaminants into the treatment tank by a rectifying pipe inside the flow control tank to prevent the blockage phenomenon on the surface of the filter layer inside the treatment tank automatic flow rate adjustable boiling point To provide a pollution reduction device.

The present invention for achieving the above object, the initial control by the flow control tank for guiding the initial excellent water through the inlet communicated with the waterway and pre-treatment of the initial flow of the flow control tank is introduced through the communication path and installed inside the initial screen An initial excellent treatment tank for treating non-point pollutants included in the flow rate, and the flow rate adjusting means for blocking or uniformly entering the initial excellent or more than the treatment plan quantity flowing into the initial excellent treatment tank on the communication path, the initial excellent In the treatment tank, a filter screen is formed at the center, and the initial rainwater flowing from the communication path flows from the outside of the filter screen to the inside, and the filtration surface of the outflow side of the filter screen has a larger perforation than the inflow side.

In addition, the flow control means is made of a buoy-type shut-off valve.

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In addition, by installing a variable baffle on the inner wall of the sphere of the initial excellent treatment tank is to prevent the re-injury to be settled rapidly by the heavy foreign matter or rather large volume foreign matter contained in the initial rainwater.

In addition, the at least one through hole is drilled on the variable baffle to prevent vortex from occurring at the rear of the variable baffle.

In addition, the rainwater introduced into the flow control tank is the soil prevention jaw is formed in the lower portion of the control tank, the earth and sand inflow is blocked, the oil contained in the rainwater is adsorbed by the oil removal unit formed on the rectification pipe, the floating impurities are rectified by the rectification pipe Since it does not flow into the treatment tank and ascends above the flow control tank, only rainwater flows to the initial excellent treatment tank through the flow control means.

In the non-powered non-pollution apparatus capable of automatically adjusting the flow rate of the present invention as described in detail above, the floating contaminants in the flow control tank are elevated to the upper side of the flow control tank by the rectifying pipe and thus do not flow into the treatment tank. In order to prevent the initial rainwater flowing into the initial rainwater treatment tank from exceeding the water treatment plan quantity or to adjust the power automatically, the flow rate adjusting means is installed at the front end of the initial water treatment tank, so that the water treatment plan quantity is constantly introduced or adjusted. It is possible to prevent the treatment efficiency of the rainwater treatment tank from decreasing.

In addition, the initial rainwater treatment device of the present invention, the initial rainwater flowing into the initial rainwater treatment tank flows from the outside of the filter screen to the inside, and the variable baffle is installed on the wall inside the sphere of the initial rainwater treatment tank to settle the contaminant or somewhat Prevents re-injuries by allowing large volumes of foreign matter to settle rapidly, and extends the time of occlusion by utilizing the filter screen filtration surface of the initial excellent treatment tank, and the filter surface on the outflow side of the filter screen is more perforated than the inflow side. This is to prevent the stagnation of the filtered effluent to occur, it is possible to reduce the volume of the initial excellent treatment tank by deleting the conventional inflow.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 to 10 is a view showing a first embodiment of a non-point pollution reducing device capable of automatically adjusting the flow rate according to the present invention.

As shown, the initial excellent treatment apparatus according to the present invention includes a flow control tank 100 and the initial excellent treatment tank 200.

The flow control tank 100 is a space for guiding and storing the initial excellent water through the inlet 110 communicated with a water channel (not shown).

In addition, the rectification pipe 130 is formed in front of the flow control means 300, the oil removal unit 131 for removing oil is formed on the top of the rectifying pipe 130, the lower wall of the rectifying pipe 130 The anti-sewing projections 120 are formed from.

That is, rainwater introduced into the flow control tank 100 is blocked by the earth and sand barrier 120, the oil contained in the rainwater is adsorbed by the oil removal unit 131 on the top of the rectification pipe 130, floating The contaminants do not flow into the rectifying pipe 130, and ascends above the flow regulating tank 100, only the rainwater flows to the initial excellent treatment tank 200 through the flow regulating means 300.

The initial excellent treatment tank 200, the initial excellent flow of the flow control tank 100 is introduced through the communication path 210 to process the non-point pollutants contained in the initial excellent by the filter screen 220 installed therein. It is.

In addition, the initial excellent treatment tank by installing a flow rate control means 300 for blocking the initial excellent or more than the planned water flow inflow into the initial excellent treatment tank 200 on the communication path (210) or to adjust the flow rate automatically without power. It satisfies the treatment capacity of (200) to maintain the treatment efficiency, and can prevent the backflow of the treatment tank when the rainfall increases, and the filter surface on the outlet side of the filter screen 220 is filtered by making the perforation larger than the inlet side This is to prevent congestion of the effluent.

In addition, it is possible to extend the life of the filter screen 220 filter medium installed in the initial excellent treatment tank (200).

In addition, the flow rate control means 300 is most preferably made of a buoy-type shut-off valve 310, the buoy-type shut-off valve 310 is disclosed in the patent registration No. 0618594, etc., it is a sub-ball 311 By the opening and closing of the disk 312 by the initial plan of the treatment plan quantity is transferred to the initial excellent treatment tank for processing, and if the rainwater increase is increased, the ball 311 rises to close the disk 312 or a certain position By fixing to, it is to block the inlet of the initial excellent treatment tank 200 or to control that the excellent rainwater to the initial excellent treatment tank 200 more than the treatment plan quantity.

On the other hand, the flow rate adjusting means 300 of the present invention is not limited to the buoy-type shut-off valve 310, it is possible to open and close the flow path using the buoys, and the water gate, valves, etc. You can install it properly.

In addition, the initial excellent treatment tank 200 has a filter screen 220 is formed in the center, and the initial rain introduced from the communication path 210 to allow the internal flow from the outside of the filter screen 220 and the conventional As such, the inlet flow path formed in the upper part of the treatment tank can be deleted, so that the civil engineering structure can be reduced. Also, the filtration surface of the outflow side of the filter screen is larger than the inflow side so as to prevent congestion of the filtered outflow water. Since floating contaminants are pivoted along the inner wall surface of the initial excellent treatment tank 200, it is possible to minimize or delay the blockage of the filter screen 220 as compared with the related art.

In addition, by installing a variable baffle 230 on the inner wall of the sphere of the initial excellent treatment tank 200 so that the heavy foreign matter or large volume of foreign matter contained in the initial excellent water to settle rapidly, the settled contaminants are re-injured It is possible to control the turning speed of the initial excellent rain.

In addition, the variable baffle 230 may be made to drill at least one through hole 231 to minimize resistance and eddy currents applied to the initial excellent, anchor bolts, etc. on the wall of the initial excellent treatment tank 200. It is fixed to the installation, it is preferable to adjust and install according to the position of the treatment tank inlet, to form a coupling hole 232 in the form of a long hole on the mating surface, and also the control means that can be variable according to the influent turning position It is preferred to be included.

In addition, the upper surface of the filter screen 220 of the initial excellent treatment tank 200 is preferably formed so that the oil removal net 240 to be able to absorb and remove the oil floating to the top.

Non-point pollution reducing device capable of automatically adjusting the flow rate, which is configured as described above, is installed in a sewage sewer pipe where sewage and sewage are classified and collected, or installed at a place to handle overflow water of a conduit, and has a boiling point among rainwater flowing along a water channel. Although the initial excellent water containing a lot of contaminants is not shown in the drawing is collected in the variable wear formed in the water channel flows into the flow control tank 100 through the inlet 110.

The initial excellent water flowing into the flow control tank 100 includes a large amount of soil, oil, and floating impurities, the soil is blocked by the soil prevention jaw 120, the oil contained in the rain is made of oil on the top of the rectifying pipe Adsorbed by the rejection 131, the suspended contaminants are not flowed into the flow rate control means 300 by the rectifying pipe 130, but are lifted upward of the flow rate adjustment tank 100.

In addition, the earth and sand blocked by the soil prevention jaw 120 is periodically dredged by the dredging car from the top by the dredging pipe 400.

Then, the initial excellent water passing through the flow rate control means 300 of the flow rate adjustment tank 100 is introduced into the interior of the initial excellent treatment tank 200 through the communication path 210, the initial excellent water flow path 210 Through the spherical inner wall surface of the initial excellent treatment tank 200 through the variable baffle 230 installed on the inner wall surface of the initial excellent treatment tank 200 to precipitate the pollutant or large volume of contaminants It will settle rapidly to the bottom.

In addition, the initial excellent flow through the through-hole 231 formed in the variable baffle 230 can reduce the resistance and the vortex phenomenon.

On the other hand, if the flow rate is increased due to the continued rainfall, the buoy-type shut-off valve 310, the flow rate control means 300 is activated to control or block the initial inflow into the initial excellent treatment tank 200, the treatment plan Rainwater over the water is discharged directly into the sea or rivers through waterways.

This protects the filter screen 220 inside the initial excellent treatment tank 200 by adjusting or blocking the rainwater flowing in exceeding the treatment plan quantity of the initial excellent treatment tank 200, and maintains the treatment efficiency, The filter surface on the outflow side of 220 may have a larger perforation than the inflow side to prevent congestion of the filtered outflow water and prevent backflow in the treatment tank to extend the life of the filter screen 220 media.

1 is a plan view on the initial excellent treatment apparatus according to the prior art.

Figure 2 is a cross-sectional view of the initial excellent water treatment apparatus according to the prior art.

Figure 3 is a perspective view of a non-point pollution reduction device capable of automatically adjusting the flow rate without power in accordance with the present invention.

Figure 4 is a perspective view of the main portion of the non-point pollution reducing apparatus capable of automatically adjusting the flow rate without power in accordance with the present invention

Figure 5 is a cross-sectional view of a non-point pollution reducing device capable of automatically adjusting the flow rate without power in accordance with the present invention.

Figure 6 is a plan view of a non-point pollution reducing device capable of automatically adjusting the flow rate without power in accordance with the present invention.

Figure 7 is a cross-sectional view of one embodiment of the flow rate control means installed in the non-point pollution reducing device capable of automatically adjusting the flow rate in accordance with the present invention.

Figure 8 is a cross-sectional view showing a variable baffle installed in a non-point pollution reducing device capable of automatically adjusting the flow rate in accordance with the present invention.

9 is a front view showing a variable baffle installed in a non-point pollution reducing device capable of automatically adjusting the flow rate according to the present invention.

(Explanation of symbols for the main parts of the drawing)

100: flow control tank 110: inlet

120: anti-soil barrier 130: rectifier tube

131: oil removal unit 200: initial excellent treatment tank

210: communication path 220: filter screen

230: variable baffle 231: through hole

300: flow control means 310: buoy type shut-off valve

311: float 312: disk

Claims (6)

Flow control tank for pre-treatment by guiding the initial excellent water through the inlet communicated with the water channel, and the initial rain of the flow control tank is introduced through the communication path to process the non-point pollutants contained in the initial rain by the filter screen installed inside And an initial excellent treatment tank and a flow rate adjusting means for blocking or uniformly introducing an initial excellent or higher treatment quantity inflow into the initial excellent treatment tank on the communication path. The initial excellent treatment tank is formed with a filter screen in the center, the initial rain flowing in the communication path to flow from the outside of the filter screen to the inside, the filter surface on the outflow side of the filter screen is larger than the inlet side Initial excellent non-point pollution reduction device capable of automatically adjusting the flow rate, characterized in that no power. The method according to claim 1, The flow rate control means is a non-powered automatic non-pollution pollution reduction device, characterized in that consisting of a buoy-type shut-off valve. delete The method according to claim 1, Variable baffle is installed on the wall of the sphere of the initial excellent treatment tank non-point pollution reducing device capable of automatically adjusting the flow rate, characterized in that the sedimentary contaminants contained in the initial rainwater or foreign matter of a large volume to settle rapidly . The method according to claim 4, Non-powered automatic non-pollution pollution reduction device, characterized in that for drilling at least one through hole on the variable baffle. The method according to claim 1, A rectifier tube is formed at the front of the flow regulating means, and an oil removing unit is formed at the top of the rectifying tube to remove oil, and the initial excellent flow is formed from the lower part of the rectifying tube to the flow regulating means. Non-point pollution reduction device with adjustable flow rate.

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