KR20170011353A - Filter cartridge and the non-point polution reducing system - Google Patents

Filter cartridge and the non-point polution reducing system Download PDF

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Publication number
KR20170011353A
KR20170011353A KR1020150103859A KR20150103859A KR20170011353A KR 20170011353 A KR20170011353 A KR 20170011353A KR 1020150103859 A KR1020150103859 A KR 1020150103859A KR 20150103859 A KR20150103859 A KR 20150103859A KR 20170011353 A KR20170011353 A KR 20170011353A
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KR
South Korea
Prior art keywords
water
cartridge
filtration
tank
hole
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Application number
KR1020150103859A
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Korean (ko)
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KR101799513B1 (en
Inventor
김병일
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주식회사 빈텍코리아
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Priority to KR1020150103859A priority Critical patent/KR101799513B1/en
Publication of KR20170011353A publication Critical patent/KR20170011353A/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/78—Handling the filter cake in the filter for purposes other than for regenerating for washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/105—Accessories, e.g. flow regulators or cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/12—Separation devices for treating rain or storm water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water

Abstract

The present invention relates to a filter cartridge, and a system to treat non-point pollution using the filter cartridge. According to the present invention, when treatment target water is not introduced into a system to treat non-point pollution, slack water remains in a slack water space (V) in a system to treat non-point pollution. The system to treat non-point pollution comprises a filter tank (300) to filter the treatment target water. A filter unit (310) includes a horizontal plate (330). The horizontal plate (330) vertically divides the filter tank (300) but passes through the filter tank (300). Filtered water remains in a filter backwashing water space (V1) which is an upper portion of the filter tank, thus the filtered water of the filter backwashing water space (V1) is used as backwashing water when the filter (310) is backwashed. Also, a backwashing tank and a filter cartridge structure are further disclosed. As such, the filter cartridge is able to efficiently perform backwashing of a biological filter in a filter cartridge; is able to automatically perform backwashing without power and also selectively apply use of backwashing water with power as necessary; is able to allow both filtered water which passes through a filter cartridge at the time of filtering and backwashing water which passes through the filter cartridge in an opposite direction at the time of backwashing to flow from a center part of the filter cartridge; and is able to store the filtered water in the backwashing water in a storage space.

Description

Technical Field [0001] The present invention relates to filtration cartridges,

FIELD OF THE INVENTION The present invention relates to filter cartridges. The present invention also relates to a non-point pollution treatment facility using the filter cartridge.

The term 'filtering part' used in the present invention corresponds to a 'filter', and it can be translated into 'filtering device', 'filtering device', or 'filtering material' in Korean. As used herein, the term " filtration part " can be applied if it is used to remove contaminants in the liquid in any form.

The filtration part can be presented in various forms, one of which is a cartridge type containing filter media (filter media, filtration material). The cartridge may also be referred to as a housing, a housing, or the like. Such a filtration technique can be applied to various technical fields.

The technical idea of the present invention can be applied to a field in which a cartridge, a filter medium, or the like is used. The present invention will be described with reference to a non-point pollutant treatment facility, which is a field to which the present invention can be applied.

Water pollution sources are classified as point pollution sources and nonpoint pollution sources depending on the nature of pollution source. Point pollution sources are pollution sources that are discharged in the form of sewer or ditch from the point of clearly recognizing pollution discharge. Which means that it is discharged from an interspersed source that is difficult to know exactly where the source is.

In general, nonpoint pollution sources are also referred to as non-specific pollution sources, surface pollution sources, mobile pollution sources, or other water pollution sources. Unlike point pollution sources having specific discharge paths, nonpoint pollution occurs through unspecified discharge paths such as urban road drainage and agricultural drainage. To indicate the place or area. Here, the non-point pollutants are pollutants that flow out along with the surface runoff when they are exposed to rain, such as fertilizers, pesticides, soil spattering plants, housing spills, traffic pollutants, dust and garbage in urban areas, Residues, and air pollutants that have fallen on the surface of the earth.

Recently, it has been difficult to confirm the exact route of leakage, and management of non-point pollutants in roads, parking lots, etc. where inflow of pollutants is non-persistent is strengthened. Specifically, dusts floating on the road surface and heavy metals contained in these dusts are deposited on the road surface and are deposited on the road surface. Further, fine particles contained in the exhaust gas accompanying the running of the vehicle, tire wear, Environmental pollutants such as asphalt abrasion are piled together. These environmental pollutants contain heavy metals such as cadmium, eutrophic salts such as nitrogen and phosphorus, and may have harmful effects on human body. In this way, various pollutants accumulated on the road surface are discharged to the river through road drainage at the time of rainfall. The total pollution concentration of the effluent discharged to the river together with the rainfall is low, In order to conserve water quality, there is a problem of dealing with road drainage originating from impervious area such as roads and parking lots.

Such non-point pollutant treatment facilities can be distinguished by natural type non-point pollution treatment facilities and non-point pollution treatment facilities.

Conventionally, the device type facility for reducing nonpoint pollution source has not been able to exert its function as a reduction facility because the design standard is simple and most of it is a non-powered system. Also, when stagnant water is generated in the facility and the number of dry days is increased, odor and mosquitoes are often the main cause of secondary pollution sources.

The local governments that need to manage these facilities have not been able to maintain the equipment-type facilities periodically due to lack of expertise, manpower, and budget difficulty. Therefore, despite the fact that many facilities have been installed to reduce nonpoint pollution sources, they have not been effective in terms of investment.

Further, although a filtration cartridge to be applied to such a device-type facility is disclosed, an improved filtration cartridge considering efficiency of filtration of the filtration cartridge and backwashing is disclosed only by storing the filter material in the cartridge and using it as filtration means . In order to utilize the backwash water, it is necessary to design the backwash water to be supplied by the power as well as the backwash water by the powerless operation. In order to more effectively backwash the backwash water by the power, There is a need for a method of spraying backwash water directly into the cartridge. It is preferable to form a flow through the center of the filter cartridge both during filtration and backwashing and it is also necessary to mechanically solve the structure of filtration and backwashing so as not to interfere with each other.

In a device-type non-point pollution treatment facility, the pretreatment tank is divided into an upflow pretreatment tank in which the influent water flows in the upward direction from below and a downflow pretreatment tank in which the influent water flows in the downward direction. However, the downward flow pretreatment tank is advantageous in blocking the rising garbage and oil components, but it is difficult to secure a sufficient residence time. There is a problem that the lifetime of the filter media is shortened due to overload of the filtration tank.

On the other hand, Korean Patent Registration No. 10-1242378 (Mar. 3, 2013) discloses a pretreatment tank having an inlet for introducing precipitation and having a space for storing precipitation therein, A first filtration tank communicating with the pretreatment tank and provided with a first filtration layer at an upper portion of the first connection port and having a first filtration tank outlet at an upper portion of the first filtration layer and a second filtration tank communicating with the first filtration tank by a second connection port And a second filtration tank provided with a second filtration layer above the second connection port and a second filtration tank discharge port above the second filtration layer; A float which moves up and down according to a water level in the pre-treatment tank; and an opening / closing means connected to the float to open / close the second connection port in accordance with the lifting / lowering of the float. And a non-point pollution abatement facility capable of automatic backwashing.

Korean Patent Registration No. 10-0894022 (Apr. 17, 2009) discloses a filtration apparatus comprising: a cartridge porous filter having a plurality of oil holes formed on an outer periphery thereof for ultimately purifying effluent; and a plurality of flow- And a filter support member connected to the fixed portion and the fixed portion to which the cartridge porous filter and the flow-out member are fixed.

The prior art as described above discloses a non-point pollution abatement facility capable of backwashing as well as discharging stagnant water having a pretreatment tank and a filtration tank, and a cartridge porous filter in which a plurality of refined oil balls are formed on the outer periphery. However, in the former, since the pretreatment tank has a downward flow, it is difficult to secure a sufficient residence time, and thus the lifetime of the filter medium is shortened due to overload of the filtration tank. The latter has a problem in that the structure of the cartridge, There is a problem that the same effect as the present invention can not be achieved for these reasons.

Korean Patent Publication No. 10-1242378 (March 3, 2013) Korean Patent Registration No. 10-0894022 (Apr. 17, 2009)

The present invention provides an improved filtration cartridge and a non-point pollution treatment facility using the same. The improved filtration cartridge should be efficient for backwashing the supernatant media in the filtration cartridge. In addition, it is possible to selectively apply the backwash water through the non-point pollution treatment facility as well as to use the backwash water by the power as well as the automatic backwash by the non- (Backwash water) passing through the filtration cartridge in the opposite direction forms a flow at the center of the filtration cartridge in common, while allowing a different flow path as required. In this paper, we propose a filtration cartridge that enhances the effect of filtration and backwashing.

In addition, recent non-point pollution treatment facilities have been designed to perform backwashing within 48 hours after the end of rainfall by changing the design standards for equipment-type facilities. Backwashing is to completely remove the solids in the filter media and return to the initial conditions of the filter media to recover the treatment efficiency and the lost head. Therefore, there is a demand for filtration (filter) of a new technology capable of simultaneously performing the conventional filtration function and backwashing. According to the present invention, it is possible to maintain the filtering linear velocity of the filter media at the time of rainfall in accordance with the design standard to ensure sufficient processing efficiency, and to effectively remove the solids in the filter media by increasing the pores of the filter media during backwash So that the filter cartridges are always kept in the best condition.

In addition, the present invention is advantageous in precipitating large contaminants, which is an advantage of upflow and / or downflow pretreatment vessels, while effectively preventing the rising of waste and oil components, as well as being a disadvantage of conventional upflow and / or downflow pre- A new type of pretreatment tank which solves the problem that the lifetime of the filter media is shortened due to the overload of the filtration tank due to the occurrence of contamination and clogging of the filter media or the difficulty in securing sufficient residence time, do.

Accordingly, it is an object of the present invention to improve the processing capability of the pretreatment tank and to reduce the treatment load of the filtration tank, thereby prolonging the service life of the filtration media and increasing the treatment efficiency.

In addition, the apparatus type facility is a semi-permanent facility, and the filtration tank should be easy to maintain, and it is intended to disclose a device type facility that is easy to manage. Another object of the present invention is to develop such a structure that achieves such a function and requires a low cost.

Above all, the present invention is capable of not only backwashing using stagnant water automatically after the end of rainfall, but also at the same time removing stagnant water, and also allowing the use of additional backwash water when necessary, And to develop it as an existing facility.

In order to solve the above-described problems, the present invention provides a non-point pollution treatment facility for discharging treated water flowing from an inflow pipe and filtered water filtered from the inflow pipe to an outflow pipe, Wherein the non-point pollution control facility includes a filtration tank for filtering the water to be treated, wherein when the treated water does not flow into the non-point pollution treatment facility, stagnation water remains in the stagnation water space in the non-point pollution treatment facility, Wherein the filtration unit includes a horizontal plate, the horizontal plate divides the filtration tank into upper and lower portions, and the stagnation water in the stagnation water space flows through the filtration tank partitioned by the horizontal plate The lower part is the object to be treated, and the filtration tank backwash water space, which is the upper part of the filtration tank divided by the horizontal plate, The filtration tank and the backwash water tank are connected to each other through the second diaphragm and the second diaphragm is connected to the first diaphragm and the backwash water tank, The filtration water filtered in the filtration tank is flowed into the backwash water tank and flows into the backwash water tank through the outlet pipe, A part of the filtered water is left and the filtered water filtered through the outflow pipe is discharged and a backwash water washing water space is formed as a space which can be partially stored in the backwash water tank before the filtered water is discharged by the outflow pipe A backwash water pump is installed below the backwash water washing water space, and the backwash water pump is disposed in the backwash water washing water space Is returned to the filtration tank, and the filtration unit is backwashed.

The filtrate water return pipe is connected to the backwash water pump and the filtrate water return pipe is connected to the filtration tank to return the filtered water filtered in the backwash water washing water space to the backwash water in the filtration unit.

In the present invention, the horizontal plate is provided with a cartridge mounting hole, and the filtration tank is divided into upper and lower portions, the upper and lower divided filtration tanks are led through the cartridge mounting hole, the cartridge mounting hole is provided with a filtration cartridge, Wherein the backwash water is backwashed in the filtration cartridge when the filtration unit is backwashed, forming a flow in a direction opposite to that during filtration.

Wherein the filter cartridge includes a cartridge housing having an inner space and an upper portion opened to form a filtration tank common-type filter medium space in which the floating filter medium is located, and a cartridge lid opening and closing an open top of the cartridge housing, The cartridge lid is provided with a water hole, and the filtered water filtered by the floating image is discharged through the water hole.

And the filter cartridge is detachably mounted on the cartridge mounting hole.

The outer periphery of the upper portion of the filtration cartridge extends outward to form an outer periphery expanding portion and the outer periphery expanding portion is caught around the cartridge abutment hole so that the filtration cartridge is detachably attached to the cartridge abutment hole .

And a cartridge socket is attached and fixed to the horizontal plate to form the cartridge mounting hole, and the cartridge housing is fitted into the cartridge socket.

And a locking recess formed in the cartridge socket to correspond to the locking hole of the cartridge receptacle so that the cartridge housing is inserted into the cartridge socket and then rotated, And the cartridge housing is detachably coupled to the cartridge socket by being inserted into the latching groove.

And a piercing pipe located inside the cartridge housing, the piercing pipe being connected to the piercing hole so as to prevent leakage of the pierced-type filtering medium and flow out the water to be treated.

And a backwash water pipe is connected to the cartridge housing to backwash the filter media in the common filter media space in the cartridge housing.

And the filtered water conveyance pipe is connected to the cartridge housing so that filtered water conveyed by the filtered water conveyance pipe backwashes the floating type filter media in the cartridge housing.

And a nozzle extension pipe connected to the filtered water return pipe and extending to the inside of the cartridge housing so as to backwash the floating type filter media in the cartridge housing with the backwash water flowing from the filtered water return pipe .

The nozzle extension pipe extends into the hole through the water hole. During the water treatment, the filtered water is discharged to the upper portion of the filter cartridge through the hole and the water hole. During backwashing, the water hole extends through the water hole and the nozzle extension pipe And the backwashing agent is backwashed in the cartridge housing.

Wherein the water through hole has a double water passage structure and the double structure water passage structure has an outer passage hole and an inner passage hole inside the outer passage hole, the inner passage hole being connected to the outer passage hole and the support piece, Wherein one of the inner through holes is connected to the nozzle extension pipe and the other is connected to the filtered water return pipe so that filtered water is discharged through the hole and the outer hole when the water treatment is performed, And the backwash water flowing from the filtered water return pipe is injected into the cartridge housing through the inner hole and the nozzle extension pipe.

Wherein the cartridge housing further includes a deformation film, wherein the deformation film flows in accordance with a flow of water, and the deformation film deforms convexly toward the inside of the cartridge housing according to the flow of water at the time of water treatment, In order to reduce the size of the image.

A buoyancy plate is installed in the cartridge housing to receive a force in the upward direction by buoyancy during water treatment to reduce the volume of the filtration tank common-use filter medium space, and when the backwashing is performed, And the volume of the filtration tank common-use filter medium is increased.

Wherein the buoyancy plate is provided with a buoyancy plate hole through which the buoyancy plate is inserted so that the buoyancy plate can move up and down, and the bottom of the buoyancy plate and the bottom of the cartridge housing are connected by a blocking membrane, And the barrier membrane is made of a material to be flowed so that it is folded when the buoyant plate is moved downward and is expanded when the buoyant plate is moved upward.

The screening device is installed in the pretreatment tank. The screening device is provided with an induction pipe for flowing the treatment object water downward so that the flow of water to be treated in the pretreatment tank can flow upward and downward, And an end of the induction pipe is inserted into the through hole.

The screen device is provided with a screen and a pretreatment filtration unit, and the number of the objects to be treated in the pretreatment tank forms a flow in the upward direction and passes through the screen and the pretreatment filtration unit. The screen is installed inside the housing and the pre-filtration unit is located on the top of the screen, and the pre-filtration unit is located at the top of the screen, Wherein the screen device comprises a screen device body and a support leg which separates the screen device body from the bottom of the pretreatment bath to fix the screen device body so that the upward flow after flowing the treated water between the bottom of the pretreatment bath and the screen device body The upper portion of the housing is opened, So that the floating contaminant of the object water in the upward flow can be moved to the upper portion of the pre-treatment tank after passing through the floating contaminant passage hole, the screen having an upper surface inclined toward the floating contaminant- So that the floating contaminants slip and move up the screen to prevent clogging of the screen.

According to an aspect of the present invention, there is provided a filter cartridge in which filtration water is filtered in a downward direction and filtration water forms a downward flow to back wash the filtration water, Characterized in that the variable means reduces the volume of the floating material space according to the flow of water during the water treatment and increases the volume of the floating material space according to the flow of water during backwashing. .

The filtration cartridge may be installed in the non-point pollution treatment facility described above.

According to the improved filtration cartridge of the present invention, backwashing of the supernatant media in the filtration cartridge is efficient. In addition, it is possible to selectively apply the backwash water through the non-point pollution treatment facility as well as to use the backwash water by the power as well as the automatic backwash by the non-powered force. All of the filtered water passing through the filtration cartridge in the opposite direction during the backwashing forms a flow at the center of the filtration cartridge, but the flow path of water during filtration and backwash is different. That is, during filtration, filtered water is not discharged through a pipe for supplying backwash water, which is efficient.

In addition to the existing non-point pollution control facilities, it has been provided with a new filtration filter that can perform both the existing filtration function and the backwashing in response to the design standard for the facility-type facility. The filtration cartridges always maintain the best conditions by allowing the contaminants in the filter media to be effectively removed by increasing the pores of the filter media during backwashing after the end of rainfall.

In addition, the filter cartridge can be detached and attached, and the non-specialist can easily clean and replace the filter media, which is easy to maintain during operation. Cartridges can be used semi-permanently, and maintenance costs can be reduced by periodically exchanging filter media only. The filter media in the cartridge can be selectively applied depending on the shape and the composition of the contaminants. The performance of the filter media is maintained at the best according to the operation during the processing of the buoyant plate in the cartridge. During backwashing, the filter material can be reduced to the initial condition, which increases the life span. Automatic backwashing and manual backwashing can be selectively applied to the cartridge structure.

The present invention is advantageous in precipitating large contaminants, which is an advantage of upflow and downflow pretreatment vessels, while effectively preventing waste and oil components floating on the flotation column, as well as preventing disadvantages of conventional upflow and downflow pre- It is difficult to secure a sufficient residence time and the life of the filter medium is shortened due to overload of the filtration tank. Thus, the present invention can improve the processing capability of the pretreatment tank and reduce the processing load of the filtration tank, thereby prolonging the lifetime of the filter media and increasing the treatment efficiency.

The device-type facility is a semi-permanent facility, and the filtration tank should be easy to maintain. The present invention is not only a device-type facility that is easy to manage, but also achieves the above- Do.

Above all, not only is it possible to perform backwashing using stagnant water automatically after the end of rainfall, but also a facility for removing stagnant water at the same time, as well as supplying backwash water by power as needed, By increasing efficiency, non-specialists can easily operate the facility while maintaining a high level of quality.

1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB of FIG. 1, and FIG. 4 is a cross- 1, and Fig. 5 is a DD sectional view of Fig. FIG. 6 shows the water treatment process and stagnant water in the non-point pollution control facility.
FIG. 7 is a view showing a part corresponding to the static water filtration water in the non-point pollution treatment facility according to an embodiment of the present invention.
8 is an enlarged view of a filtration unit of a filtration tank of a non-point pollution treatment facility according to an embodiment of the present invention.
9 to 11 show a part of a filtration unit which is one embodiment of the present invention. FIG. 9 is a conceptual view showing a combination of a horizontal plate and a filtration cartridge, FIG. 10 shows a filtration cartridge, It is an exploded view.
12 and 13 are enlarged views of a portion F of Fig. 8 showing a filtration cartridge which is an embodiment of the present invention. FIG. 12 shows that a deformation film is provided on the lower part of the filter cartridge, FIG. 13 shows the buoyancy plate as another embodiment, FIGS. 12A and 13A show the water treatment time, FIGS. It shows the flow of water.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

Treatment Facilities Overview

1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB of FIG. 1, and FIG. 4 is a cross- 1, and Fig. 5 is a DD sectional view of Fig. FIG. 6 shows the water treatment process and stagnant water in the non-point pollution control facility.

As shown in the drawings, an embodiment of the present invention relates to a non-point pollution treatment facility installed in the ground. Generally, the non-point pollution treatment facility is installed in the ground, but the technical idea of the present invention is not limited to the case where it is installed in the ground. In some cases, non-point pollution facilities may be installed on ground or surface structures. And any of the technical features of the present invention described below belong to the protection scope of the present invention. However, this embodiment shows that the present invention is installed in the ground as a representative embodiment to which the present invention is applied.

The non-point pollution treatment facility 100 is a structure in which an inner space for treating non-point pollutants is formed in the interior, and is constructed through on-site installation by concrete casting, factory building after installation, Any type of non-point pollution treatment facility to which the technical features of the present invention described below are applied is also included in the technical idea of the present invention. Generally, after the tearing, the abandoned concrete 10 having a length of about 20 cm is formed at the place where the non-point pollution treatment facility is to be constructed, and then the non-point pollution treatment facility is constructed.

The treatment system of the non-point pollution control facility 100 includes a pretreatment tank 200, a filtration tank 300, and a backwash water tank 400, which are arranged in a row in the present embodiment. The technical idea of the present invention is not limited to this design, and the pretreatment tank 200, the filtration tank 300, and the backwash water tank 400 may be disposed according to the conditions of the site.

A manhole 90 and a safety ladder 20 are installed in the pre-treatment tank 200, the filtration tank 300 and the backwash water tank 400 to manage the manhole 90 and the backwash water tank 400, respectively. In this embodiment, a pump is used to discharge the stagnant water or to spray the backwash water as described later. To this end, the distribution panel 40 is installed. If necessary, the pump power may use solar energy. In this case, the solar cell 30 is installed. In order to explain the invention more clearly, the solar cell 30 and the distribution panel 40 are omitted in FIG. 2 and subsequent drawings, and the ladder 20 is omitted in the drawings after FIG.

FIG. 6 shows a process of water treatment by a non-point pollution treatment facility, which is an embodiment of the present invention. In FIG. 6, arrows in the drawing show paths through which water to be treated flows in and flows out. 6, the 'treated water' flowing into the non-point pollution treatment facility 100 through the inlet pipe 50 is filtered through the pre-treatment tank 200 and the filtration tank 300, Filtered water ', and is discharged through the outflow pipe (60) through the backwash water tank (400). In the present specification, the inflow water before filtration is referred to as a "treatment target water", and after the object to be treated has been filtered through a filtration tank, it is referred to as "filtered water". The filtered water is filtered relatively clean water. The filtered water is recycled as backwash water as described later.

The inflow pipe and the outflow pipe may be connected in a straight line as shown in a plan view of FIG. 1 of the present embodiment, or may be disposed at a predetermined angle or in a shifted manner to match the site. However, the height of the inflow pipe and the outflow pipe should be designed so that the non-point pollution control facility can implement the function. In general, the outflow pipe is formed lower than the inflow pipe in order to operate the facility by natural descent.

Wherein the inflow pipe is collected and introduced into a road, a side wall of a building, a car park, or the like including non-point pollutants, and the non-point pollutant is treated by filtration, adsorption, etc., And is discharged to the outlet pipe 60.

In the present embodiment, the number of objects to be treated flows over the backwash water tank 400 and flows out through the outlet pipe 60, but the present invention is not limited to this. That is, the backwash water may be provided by various means different from the present embodiment. If necessary, backwash water may be supplied from a separate water source. In the case of the present embodiment, the influent water to be treated is filtered and stored in a part of the backwash water tank 400, and then recycled as backwash water.

As can be seen from the arrow in Fig. 6, the water to be treated flows into the lower portion of the filtration tank and flows out from the upper portion of the filtration tank. The pretreatment tank 200 and the filtration tank 300 are divided by a first partition wall 202. A through hole 203 is formed in a lower portion of the first partition wall, The object number is introduced into the filtration tank 300 by the difference of the head. The filtration tank 300 and the backwash water tank 400 are divided by a second partition wall 302. A through hole 303 is formed in the upper part of the second partition wall so that the filtered water filtered in the filtration tank 300 And then flows into the backwash water tank 400. The outflow pipe is connected to the backwash water tank 400 so that some filtered water remains in the backwash water tank 400 and the filtered water filtered through the outflow pipe 60 is discharged.

The water to be treated flows into the lower portion of the filtration tank 300 and the filtered water flows out from the upper portion of the filtration tank 300 so that the flow of water in the filtration tank 300 becomes a flow in the upward direction. (The flow of water in the screen device 230 of the pretreatment tank 200 will be described later in detail.)

Stagnant water space and backwash water

The stagnant water is generated when the object water does not flow into the non-point pollution control facility 100 (for example, when no rain is coming). In the non-point pollution control facility 100, (V) (Fig. 6). Generally, the stagnant water space (V) refers to a space lower than the stagnant water surface formed below the inflow pipe and the outflow pipe. When the non-point pollution control facility is in operation, as in the case of rainfall, the stagnant water does not flow. When the non-point pollution control facility is operated, However, when the non-point pollution control facility is not operated (that is, when the control object water is not supplied), stagnant water is generated in the non-point pollution control facility.

In the case of the pre-treatment tank 200 and the filtration tank 300, the stagnant water space V is formed below the overflow hole 303. In the stagnant water tank 400, Lt; RTI ID = 0.0 > connected < / RTI > The height of the outflow pipe (60) is equal to or lower than the height of the overflow hole (303). On the other hand, some of the stagnant water in the stagnant water space (V) is filtered water. FIG. 7 is a view showing a part corresponding to the static water filtration water in the non-point pollution treatment facility according to an embodiment of the present invention.

A part of the filtered water filtered in the filtration tank 300 is not discharged from the filtration tank but remains in a part of the still water space V in order to recycle the filtered water as backwash water. The backwash water space used as the backwash water is called the backwash water space. The backwash water space formed in the filtration tank among the backwash water space is called the filtration tank backwash water space (V1). On the other hand, the filtered water is also stored in the backwash water tank, and this space is called the backwash water washing water space V2. The backwash water washing water space (V2) is a space partially stored in the backwash water tank (400) before the filtered water is drained by the outlet pipe (60).

As a result, in the case of the filtration tank 300 of the present embodiment, part of the stagnant water is the 'untreated water', and a part of the water is already filtered 'filtered water'. This will be described in more detail. 8 is an enlarged view of a filtration unit of a filtration tank of a non-point pollution treatment facility according to an embodiment of the present invention.

As described above, in the present embodiment, the treatment object water is introduced from the inflow pipe 50, and the non-point pollution treatment facility 100 discharging the filtered water filtered through the inflow pipe to the outflow pipe 60 The filtration unit 300 includes a filtration unit 310 for filtering the water to be treated in a bottom-up manner, when the treated water does not flow into the non-point pollution treatment facility, The filtration unit 310 includes a water level plate 330. The water level plate 330 divides the filtration tank 300 into upper and lower portions so as to communicate with each other, The lower part of the filtration tank 300 partitioned by the horizontal plate 330 is the object to be treated and the filtrate water remains in the filtration tank backwash water space V1 which is the upper portion of the filtration tank 300 partitioned by the water level plate 330 (Not shown) And the filtered water in the filtrate backwash water space (V1) is used as backwash water during backwashing.

The backwash water tank 400 of the nonpoint pollution control facility 100 is divided into the filtration tank 300 and the second partition 302 and a rim 303 is formed in the upper part of the second partition wall The filtered water filtered in the filtration tank 300 is flowed into the backwash water tank 400 and the outlet pipe is connected to the backwash water tank 400 so that some filtered water remains in the backwash water tank 400 And the filtered water filtered through the outlet pipe 60 is discharged.

A backwash water cleaning water space (V2) is formed in the backwash water tank (40) to be partially stored in the backwash water tank (400) before the filtered water is discharged by the outlet pipe (60) A backwash water pump P3 is installed below the backwash water washing water space V2 and the backwash water pump P3 conveys the filtered water in the backwash water washing water space V2 to the filtration tank 300 The filtration unit in the filtration tank is backwashed. The filtered water return pipe 410 is connected to the backwash water pump 410. The filtered water return pipe 410 is connected to the filtration tank to return the filtered water filtered in the backwash water washing water space to the backwash water of the filtration unit 310 can do.

The horizontal plate 330 is formed of a concrete material in the present embodiment, but may be any material. In the lower part of the horizontal plate, water to be treated is present, and on the upper side of the horizontal plate, the backwash water space of the filtration tank can be formed.

The use of filtered filtrate in the filtrate backwash water space (V1) as backwash water is performed at the same time as removing the stagnant water. That is, when the filtration tank stagnant water discharge pump P2 of the filtration tank is operated to remove stagnant water, the stagnant water in the filtration tank is discharged through the stagnant water discharge pipe 70 connected to the filtration tank stagnant water discharge pump. In this case, the water level in the filtration tank 300 gradually decreases, and the filtered water in the filtration tank backwash water space V1 passes through the filtration unit 310 again as backwash water. As a result, if the stagnant water in the filtration tank is removed, backwashing is automatically performed.

According to this embodiment, it is possible to perform backwashing automatically using filtered water when removing stagnant water, and a method of using power is presented. Unlike the present embodiment, a method using a non-dynamic force is also possible. In the case of using power, it is constructed to be capable of automatic removal of stagnant water and automatic backwashing by using electric and solar batteries and rain sensor. In case of non-motorized, periodically, by suction type sweeper, . In addition, the meaning of automatic backwashing means that the filtered water filtered by the facility is not recycled but supplied to the lower part of the non-point pollution treatment facility, that is, (Not shown), which means that no additional power is needed during backwashing.

The filtration tank stagnant water discharge pump P2 and the stagnant water discharge pipe 70 for discharging the stagnant water of the filtration tank can be installed by selecting an appropriate head and flow rate and can be constructed by an underwater pump if necessary. Since the pump is for discharging the stagnant water, it is installed adjacent to the bottom of the non-point pollution control facility. This is also the case in the case of the pretreatment body water discharging pump P1 installed in the pretreatment tank.

The backwash water used in backwashing of the present invention can be summarized as follows. First, filtered water in the filtration tank backwash water space (V1) can be used as backwash water automatically without any additional power, that is, The backwash water may be introduced into the filtration tank by using a pump. In the case of this embodiment, after the filtered water remains in the separate backwash water tank 400, it is returned to the filtration tank by the backwash water pump P3 And used for backwashing. The backwash water by the backwash water pump (P3) is strongly backwashed by the pump pressure. Further, the effect can be further increased through the connection relation with the filter cartridge described later.

Double water through structure of filtration cartridges

The filtration unit 310 of the filtration tank 300 includes a horizontal plate 330 for vertically dividing the filtration tank 300. The filtration tank (300) is a bottom-up type filtration tank. The filtration cartridge (320) forms a flow horizontally and upwardly in view of the number of objects to be treated from the pretreatment tank and filters the object water. The backwashing water for backwashing the backwashing water is provided on the filter cartridge and when the stagnant water of the nonpoint pollution treatment facility is removed by the pump power, Backwashing has already been described. The filtration cartridge portion F and the filtered water conveyance pipe 410, which are separately shown in the lower portion of FIG. 8, will be described later.

9 to 11 show a part of a filtration unit which is one embodiment of the present invention. FIG. 9 is a conceptual view showing a combination of a horizontal plate and a filtration cartridge, FIG. 10 shows a filtration cartridge, It is an exploded view. The cartridge mounting hole 331 is formed in the horizontal plate and the filtration tank 300 partitioned into upper and lower portions is connected to the cartridge mounting hole 331. A filter cartridge 320 is installed in the cartridge mounting hole, In the filtration cartridge 320, the backwash water flows in a direction opposite to the filtration state during the backwashing of the filtration unit 310, Backwash the filter media. And is stored in the filtration cartridge to a size that does not go out in the filtration cartridge. Although the above-mentioned extra-ordinary type filter material is not shown in the drawing or shown in a circular pattern, the above-mentioned extra-ordinary type filter material can be applied to various types of filter media, and any shape can be applied to the present invention.

The filter cartridge 320 has a mesh-shaped cartridge housing 341 having an inner space and an open top and having an open upper portion of the cartridge housing so that the filtration tank common- And a cartridge lid 360 for opening and closing the cartridge lid 360. The cartridge lid 360 is provided with a water flow hole 361 through which the filtered water filtered out is discharged through the water flow hole 361. [

The floating filter medium of the filtration tank (the floating filter medium of the pre-filtration unit, which will be described later) is the same as that of the filtration unit of the filtration tank, and the disturbance state is elapsed when the filtered water flows downward. The cartridge housing has an outer wall and a bottom in the form of a net (or screen or sieve) and stores the superficial media therein. A cartridge lid which can be opened and closed is coupled to the upper portion of the cartridge housing, and after removing the cartridge lid, the add-on media in the cartridge housing can be taken out and replaced. A maintenance handle 363 is formed in the cartridge housing 341.

The filter cartridge 320 is detachably mounted on the cartridge mounting hole 331. The facility in which the filter material is installed in the filtration tank is excellent in workability and economical efficiency, but it is difficult to disturb and replace the filter material in operation, which is difficult to maintain and the maintenance cost is high. On the other hand, the filtration cartridge, which can be detached and attached like the present embodiment, can have a relatively high initial construction cost but can be easily maintained and minimized in maintenance cost. Also, as in the present embodiment, the lower portion of the filtration tank serves as a secondary clarifier through the horizontal up-down processing system of the filtration cartridge, thereby prolonging the service life of the filtration cartridge and improving the treatment efficiency.

The outer periphery of the filtration cartridge 320 is expanded to form the outer periphery expanding portion 343 and the outer periphery expanding portion 343 is hooked around the cartridge receiving hole 331, And is detachably mounted on the cartridge mounting hole 331. In this case, when the outer circumferential extension portion, which is the upper portion of the filtration cartridge, is hooked to the cartridge receiving hole, the filtration filter portion is located at the lower portion of the cutter receiving hole, It can also be expressed as using a food filter.

A cartridge receptacle 332 is attached and fixed to the horizontal plate 330 to form the cartridge receiving hole 331 and the cartridge housing 341 is fitted to the cartridge receptacle 332. The horizontal plate 330 may be formed of concrete. In this case, the cartridge socket 332 may be embedded in the concrete by using a stud or the like.

A portion of the upper periphery of the upper portion of the cartridge housing 341 is formed to protrude to form a locking hole 344 and the cartridge socket 332 is provided with a locking groove 344 corresponding to the locking hole 344, The cartridge housing 341 is inserted into the cartridge socket 332 and then rotated so that the locking protrusion 344 is inserted into the locking groove 333 so that the cartridge housing 341 is inserted into the cartridge socket 333. [ Detachably coupled.

The present embodiment further includes a pore tube 342 located inside the cartridge housing 341 to prevent leakage of the supernatant filter material and to discharge the water to be treated, and the pore tube is connected to the water pore hole 361.

In this structure, the object to be treated passes through the floating filter medium in the cartridge housing 341 and the filtered water moves to the upper portion of the filtration tank 300 through the oil pipe 342 and the water flow hole 361 . The pore tube is buried in the extra-ordinary filter material located outside the pore tube. The outer wall and the bottom of the cartridge housing are in the form of a screen (sieve or net), and the inner tube is located inside the cartridge housing. The inner tube is filled between the outer wall of the cartridge housing and the bottom of the cartridge housing.

Accordingly, when the backwash water flowing into the water passage hole 361 is discharged to the floating material through the pipe during the backwash, the floating water is effectively backwashed by the backwash water discharged from the pipe.

A backwash water pipe may be connected to the cartridge housing 341 to backwash the filter media in the filter media common space 350 within the cartridge housing 341. The backwash water pipe is configured to receive backwash water for backwashing from a separate backwash water supply source through a pipe.

The backwash water pipe may be the filtered water return pipe 410. That is, the filtered water conveyance pipe 410 is connected to the cartridge housing 341 so that the filtered water (backwash water) conveyed by the filtered water conveyance pipe 410 can reverse the floating type filter media in the cartridge housing 341 Can be cleaned.

The backwash water conveyed to the above-described filtrate water return pipe 410 is used as backwash water filtered through the filtration tank. In this embodiment, the filtered water in the backwash water washing water space V2 is used as the backwash water pump (P3).

The present embodiment is connected to the filtered water return pipe and extends back into the cartridge housing 341 so as to backwash the floating type filter media in the cartridge housing 341 with backwash water flowing from the filtered water return pipe And further includes a nozzle extension pipe 342a. The nozzle extension pipe 342a extends into the oil hole 342 through the oil hole 361. During the water treatment, filtered water is discharged to the upper portion of the filter cartridge through the oil hole and the water hole, And the adhering filter medium in the cartridge housing 341 is backwashed through the water hole and the nozzle extension pipe 342a.

As described above, the water flow hole 360 is formed in the cartridge lid 360. The water passage hole 360 is connected to a pipe tube 342 for discharging only the filtered water passing through the floating type filter media 341 located inside the cartridge housing 341.

The water hole 361 has a double water flow structure and the double structure water flow structure has an outer hole 361a and an inner hole 361b inside the outer hole, Is connected to the outer through hole 361a by a support body 361c, the outer through hole is connected to the hole, the inner hole is connected to the nozzle extension pipe, and the other is connected to the filtered water return pipe During backwashing, backwash water flowing in the filtered water return pipe (410) is injected into the cartridge housing through the inner hole and the nozzle extension pipe during backwashing The arrows in Fig. 11 show the direction of water flow during water treatment and backwash.

This is because the dual water flow structure including the inner through-holes supported by the outer through-holes and the supporting fins is preferable because it is effective to form a flow of water from the central portion or the central portion of the filtration cartridge both during filtration and backwash. Further, as described above, in order to recycle the filtered water as backwash water, the above-described structure is preferable in order to divide the filtered water into the backwash water space of the filtration tank by the natural water level and the backwash water washing water space by the power. That is, the feature of this embodiment resides in that the outflow and inflow paths of the filtered water are made different from each other even though the outflow and inflow of the filtered water occur at the center of the filtration cartridge.

Adjust internal volume of filtration cartridge

12 and 13 are enlarged views of a portion F of Fig. 8 showing a filtration cartridge which is an embodiment of the present invention. FIG. 12 shows that a deformation film is provided on the lower part of the filter cartridge, FIG. 13 shows the buoyancy plate as another embodiment, FIGS. 12A and 13A show the water treatment time, FIGS. It shows the flow of water.

The arrows in Figs. 12 and 13 show the flow of water. It is preferable that the density of the floating type filter media in the filter cartridge is relatively increased when water is treated and is relatively low when the filter is backwashed. This is to increase the effect of filtration during filtration and to easily remove contaminants during backwashing. The present invention can adjust the volume of the filter medium itself or adjust the gap between the filter medium particles and the particles so that the density during filtration and the backwash can be different.

The cartridge housing further includes a deformation film (345), wherein the deformation film flows in accordance with a flow of water, and the deformation film deforms convexly toward the inside of the cartridge housing according to the flow of water during water treatment, The volume of the filter material space is reduced, and when the filter is backwashed, the deformation film is deformed to the outside of the cartridge housing according to the flow of water, thereby enhancing the volume of the filter material portion of the common filter material space (in preparation for water treatment). The deformed film may be formed of, for example, a soft synthetic resin material, or a vinyl paper that flows freely. However, a material that does not allow water to pass through is preferable. It is preferable that the deformation film is formed in a larger area than the cross section of the cartridge housing. When the outer periphery of the deformable film is attached to the outer wall of the cartridge housing and the inner side of the deformable film is attached to the porosity tube portion, the deformable film is convex upward according to the flow of water during water treatment.

In another embodiment shown in FIG. 13, a buoyancy plate 346 may be installed inside the cartridge housing. In this case, during the water treatment, the force is applied upward by the buoyancy force to reduce the volume of the common filter medium space of the filtration tank, and when backwashing, the volume of the filtration tank common- The buoyancy plate is formed with a buoyancy plate hole (347) through which the buoyant plate is inserted so that the buoyant plate can move up and down.

Meanwhile, when the buoyant plate moves in the upward direction, the unfiltered filtered water can be discharged to the upper portion of the filtration cartridge through the pore tube and the outer pore hole by the pore tube exposed below the buoyancy plate. In order to solve this problem, the lower part of the buoyant plate and the bottom of the cartridge housing are connected to each other by a blocking membrane 348, which blocks the inflow of water to be treated into the lower pore of the buoyant plate And the barrier membrane is made of a material that flows, and when the buoyant plate is moved downward, it is folded, and when the buoyant plate is moved upward, the buoyant plate is expanded. For example, the barrier film may be an impervious vinyl paper or the like. A tubular vinyl paper is connected between the lower portion of the buoyancy plate and the bottom of the cartridge housing, and a pipe tube is positioned inside the tubular vinyl paper.

In summary, in the present embodiments, when the buoyancy of the buoyancy plate due to the buoyancy of the lower portion of the filter cartridge during the rainfall is deformed or deformation of the deformation film is applied, the filter material is pressed to have a constant air gap and filtration line speed, During backwashing (water washing) after the end of rainfall, sufficient space of the filter layer is ensured by the movement of the buoyancy plate or deformation of the deformation film, and disturbance and collision of the filter material are caused by water washing through the backwash nozzle, The filtration cartridges can be reduced to the initial conditions of the filter media by effectively removing the contaminants.

Such a filtration cartridge can not be applied only to a non-point pollution treatment facility. As already mentioned in the specification, the structure of the present filtration cartridges can be applied to various water treatment facilities or devices, and these are considered to be included in the protection scope of the present invention.

That is, not only a filtration cartridge installed in the above-mentioned non-point pollution treatment facility, but also a filtration cartridge in which water to be treated is filtered downwardly and the filtrate water forms a downward flow to backwash, Wherein the volume of the at least one auxiliary filter medium is varied according to the flow of the water during the water treatment and the volume of the at least one auxiliary filter medium is changed according to the flow of the water at the time of backwashing Various types of relatively large filtration cartridges are also within the scope of the present invention.

Pretreatment tank and screen device

As described above, the non-point pollution treatment facility according to the present invention includes a pretreatment tank 200. The flow of the treatment object water in the pretreatment tank 200 is a mixed type in which the upward flow and the downward flow can coexist. This is illustrated by the arrow in the pre-treatment bath of FIG. As shown in the drawing, the water to be introduced by the inflow pipe 50 forms both the upward flow and the downward flow in the pre-treatment tank. This is one of the features of the present invention in order to increase the residence time and to enhance the effect of implementing the pretreatment tank in a narrow space.

The non-point pollution treatment facility may include two or more filtration vessels as needed, or may have a separate treatment vessel for adsorbing oil and the like. The present invention can be applied regardless of the name of the non-point pollution treatment facility, regardless of the name, if it includes a pretreatment tank for entering the treatment object water into which the screen is installed and a treatment tank filtration tank It is.

14 to 16 show a screen device installed in a pretreatment tank according to an embodiment of the present invention. Fig. 14 is an isometric view of the screen device used in an embodiment of the present invention, Fig. 15 is a partially cut isometric view of a screen device showing movement of floating contaminants during water treatment, Fig. Is a partially cut isometric view of the screen device showing the path of the object number.

The pretreatment vessel is provided with a screen device (reference numeral 230 in FIG. 2 and FIG. 6). The screen device 230 is provided with a screen 210 and a pre-treatment filtration unit 220. The treatment water introduced into the pre-treatment tank through the inflow pipe passes through the screen and the pre- And flows into the filtration tank. In the pretreatment tank, a screen device to be described later is installed to treat contaminants and large floating contaminants, and organic substances and heavy metals are reduced in the filtration tank.

The number of objects to be treated in the pre-treatment tank forms a flow in the upward direction and passes through the screen and the pre-treatment filtration part. The treatment object water that has passed through the pre-treatment filtration part forms a downward flow, Wherein the screen and the pre-processing and filtering unit constitute a screen device 230, the screen device including a housing 231 with a bottom opened, the screen being installed inside the housing, and the pre- The screen is located above the screen, and the object to be processed forms a flow in the upward direction and is filtered by the pre-processing filtration unit after passing through the screen.

The screen device includes an induction pipe 232 for flowing water to be treated, which has passed through the pre-treatment filtration unit, in a downward direction and introducing the water to the filtration tank. The screen device includes a screen device body 234 integrally formed with the screen, the pre-process filtration unit, and the guide pipe, and a support leg 233 that separates the screen device body from the preprocessing bath bottom 201 The upper part of the housing is opened to form a floating contaminant passage hole (235), and the upper part of the housing is opened in the upper direction The screen is formed with an inclined surface on the upper side in the direction of the floating contaminant passing hole so that the floating contaminant of the water to be treated in the flow can move to the upper portion of the pre-treatment tank after passing through the floating contaminant passing hole, Wherein the screen is slid to the top to prevent clogging of the screen, the screen device having a modular monolithic screen An apparatus, wherein the support legs, wherein the screen device body are integrally formed and can be separated from the pre-treatment tank, the end (232a) of the guide tube is inserted into the coupling holes.

This will be described in more detail. It is possible to effectively block the wastes and oil components that float while being advantageous in depositing large scum, which is an advantage of conventional upflow and / or downflow pretreatment vessels, as well as to effectively remove floatation and oil components which are disadvantages of conventional bottom- and / The present invention solves the problem that the lifetime of the filter media is shortened due to overload of the filtration tank because it is difficult to secure sufficient residence time or to cause contamination and clogging of the filter media by passing through the filtration tank as it is. It is a mixed type pretreatment tank that combines a downflow pretreatment tank. The mixed type pretreatment tank can sufficiently treat the floating contaminants and oil components through the upward flow screen and the primary settler through the sufficient residence time. In addition, it is also possible to increase the processing capacity and lifetime of the filtration tank while minimizing the clogging of the filtration media by installing a floating filter medium having a large particle diameter and a large void on the screen.

First, a pretreatment filtration unit 220 is further installed in the pre-treatment tank, and the object to be treated in the pretreatment tank forms a flow in the upward direction, passes through the screen 210, passes through the pretreatment filtration unit, The water to be treated which has passed through the pretreatment filtration part forms a downward flow again and then flows into the lower part of the filtration tank. In the present example, the pretreatment filtration section is provided in the pretreatment tank to perform filtration in the filtration tank and to perform a partial filtration in the pretreatment tank prior to adsorption. This is economical because it has the same effect as constituting two filtration tanks. A filter medium having different particle size and characteristics from the filtration unit of the filtration tank can be selectively used. In general, a filter medium having a larger particle size than the filter medium of the filtration tank is used.

The pretreatment filtration unit 220 uses an inhomogeneous filter medium to facilitate maintenance. That is, the pretreatment filtration unit includes a pretreatment section type filtration media 221, which functions as a filtration function when the water to be treated flows upward, and when the water to be treated flows downward (as a result, (Loosened) of the pre-treatment type common filter media as compared with the flow in the upward direction. When the stagnant water in the pre-treatment tank is discharged to the stagnant water discharge pipe (70) by the pretreatment body water discharging pump (P1) of FIG. 2, the treatment target water forms a downward flow.

As described above, the filtration part in the filtration tank also uses the floating filter material. In order to use the floating filter material in the filtration part of the filtration tank, the water to be treated must flow into the lower part of the filtration tank, The flow of the water to be treated in the pretreatment tank must be such that the upward direction and the downward direction coexist. That is, the object to be treated should be flowed downwardly after being processed by the screen and the pre-treatment filtration unit in a flow state in the upward direction, and then introduced into the lower portion of the filtration tank through the through-hole. The filter material of the pre-treatment tank and the filtration tank is flotation type, and as a result, the object to be treated in the pre-treatment tank and the filtration tank has an upward flow and performs an automatic backwash function.

The screen 210 and the pre-processing filter 220 constitute a screen device 230. The screen device also functions to form a flow of water in the pretreatment tank described above. Wherein the screen device comprises a housing (231) with a bottom open, the screen is installed inwardly into the housing, the pre-filtration part is located above the screen, After passing through the screen, it is filtered by the pre-filtration section. The housing 231 is in the form of a hexahedron in the present embodiment, but may have various shapes according to the conditions of the non-point pollution control facility.

The screen device 230 further includes an induction pipe 232 for flowing the water to be treated downward through the pre-filtration unit into the filtration tank. The water to be treated, which has passed through the pre-filtration unit, Collected in the induction pipe 232b, flowed downward through the vertical induction pipe 232c, and then introduced into the filtration tank through the through hole 203. [ As described above, the pretreatment tank and the filtration tank of the non-point pollution treatment facility are separated by a partition wall 202, and a through hole 203 is formed in the partition wall. The end portion 232a of the induction pipe is inserted into the through- . The end 232a of the vertical direction induction pipe 232c is bent in the horizontal direction again and inserted into the through hole 203 to be coupled and fixed.

The screen device 230 includes a screen device body 234 from which the screen 210, the pre-filtration section 220 and the induction pipe 232 are integrally formed, And a support leg 233 for separating and fixing the screen device body. The flow of the process water in the upward direction after the water to be treated flows into the space between the bottom of the pre-treatment bath and the body of the screen device. The screen device 230 is a modular integrated screen device in which the support legs and the screen device body are integrally formed and detachable from the pre-treatment bath. It is also possible to replace only the pre-treatment filter unit of the screen device 230 or to replace only the pretreatment unit common-use filter media in the pre-treatment filter unit.

The upper portion of the housing 231 is opened to form a floating contaminant passage hole 235. The floating contaminant in the water to be treated in the upward flow passes through the floating contaminant passage hole and flows into the upper portion of the pre- To move it. That is, the floating contaminants, which are advantages of the downward flow, are smoothly separated and introduced into the filtration tank through the filtration tank. In addition, in order to prevent clogging of the screen, And the floating contaminant passage hole is formed in order to flood the pollutant to the upper portion of the pre-treatment tank.

In order to facilitate such a function, the screen 210 forms an inclined surface with its upper side formed in the direction of the floating contaminant passage hole 235, and the floating contaminant slips the upper surface of the screen, It is possible to prevent clogging. In addition, the mesh 236 of the screen is partially protruded in the inflow direction of the water to be treated, and formed in the same direction as the flow direction of the water to be treated, thereby preventing the mesh from being blocked by the floating contaminants. The mesh refers to a portion of the screen through which the object water passes, and various shapes may exist depending on the type of the screen. In particular, in the case of a screen made of a metal material, the mesh can be formed in the above-described shape by a press.

Although the present invention has been described by way of specific embodiments, the present invention is not limited thereto. It is needless to say that modifications and variations are possible within the scope of the technical idea of the present invention.

10: abandoned concrete
20: Safety ladder
30: Solar cell
40: Distribution board
50: inlet pipe
60: Outflow tube
70: stagnation water discharge pipe
90: Manhole
100: Non-point pollution treatment facility
V: Congestion water space
V1: Backwash space of filtration tank
V2: Backwash water
P1: Pretreatment regulator water discharge pump
P2: Filtration tank stagnation water discharge pump
P3: Backwash water pump
200: Pretreatment tank
201: Pre-treatment bath floor
210: Screen
220: Pretreatment filtration section
201: Pre-treatment bath floor
202: first partition
203: passage
210: Screen
220: Pretreatment filtration section
230: Screen device
231: Housing
232: induction tube
232a: end of induction tube
233: support leg
234: Screen device body
235: Injury pollutant passing hole
236: mesh
300: filtration tank
302: second partition
303:
310:
320: filtration cartridge
330: Horizontal plate
331: Cartridge mounting ball
332: cartridge socket
333:
341: cartridge housing
342:
342a: nozzle extension pipe
343:
344: stumbling exit
345:
346: Buoyancy plate
347: Buoyancy plate hole
348:
350: Filtration tank
360: Cartridge lid
361: Through hole
361a: Outer cavity
361b: Inner opening
361c:
363: Handle for maintenance
400: Backwash water tank
410: Filtration water return pipe

Claims (21)

A non-point pollution control facility (100) for discharging treated water flowing from an inflow pipe (50), filtered water filtered from the inflow pipe into an outflow pipe (60)
The number of stagnates remaining in the stagnant water space (V) in the non-point pollution control facility when the treatment target water does not flow into the non-stagnation pollution treatment facility,
The non-point pollution control facility includes a filtration tank (300) for filtering the object water,
The filtration tank 300 includes a filtration unit 310 for filtering the object water in a bottom-up manner,
The filtration unit 310 includes a horizontal plate 330. The horizontal plate 330 divides the filtration tank 300 into upper and lower portions,
The lower part of the filtration tank 300 partitioned by the horizontal plate 330 is a number to be treated and the upper part of the filtration tank 300 partitioned by the horizontal plate 330 Filtration water remains in the filtration tank backwash water space V1 and the filtered water in the filtration tank backwash water space V1 is used as backwash water during backwashing of the filtration unit 310,
The non-point pollution treatment facility 100 further includes a backwash water tank 400. The filtration tank 300 and the backwash water tank 400 are divided by a second partition 302, The filtration water filtered in the filtration tank 300 flows into the backwash water tank 400 and flows into the backwash water tank 400,
The outlet pipe is connected to the backwash water tank 400 so that some filtered water remains in the backwash water tank 400. The filtered water filtered through the outlet pipe 60 is discharged,
A backwash water cleaning water space V2 is formed in the backwash water tank 400 so that the filtered water can be partially stored in the backwash water tank 400 before being discharged by the outlet pipe 60,
A backwash water pump P3 is installed below the backwash water washing water space V2,
The backwash water pump P3 returns the filtered water in the backwash water cleaning water space V2 to the filtration tank 300 and backwashes the filtration unit
Nonpoint pollution treatment facility.
The washing machine according to claim 1, wherein the backwash water pump is connected to a filtered water return pipe (410)
And the filtered water conveyance pipe 410 is connected to the filtration tank to return the filtered water filtered in the backwash water washing water space to the backwash water of the filtration unit 310
Nonpoint pollution treatment facility.
3. The method of claim 2,
The horizontal plate is provided with a cartridge receiving hole 331, and the filtration tank is divided into upper and lower portions, and the filtration tank 300 divided by the upper and lower portions is passed by the cartridge receiving hole,
A filter cartridge 320 is installed in the cartridge mounting hole,
The filtration cartridge 320 includes an auxiliary filter medium,
The backwashing water is backwashed in the filtration cartridge 320 when the backwashing of the filtration unit 310 is performed,
Nonpoint pollution treatment facility.
The method of claim 3,
The filter cartridge 320 includes a cartridge-shaped cartridge housing 341 having an inner space and having an upper portion opened to form a filtration tank common-type filter media space 350 in which the in- And a cartridge lid (360) for opening and closing the cartridge lid (360)
A water flow hole 361 is formed in the cartridge lid 360,
And the filtered water filtered by the floating filter medium flows out through the water hole (361)
Nonpoint pollution treatment facility.
The method of claim 3,
Characterized in that the filtration cartridge (320) is detachably mounted on the cartridge mounting hole (331)
Nonpoint pollution treatment facility.
6. The method of claim 5,
The outer periphery of the upper portion of the filter cartridge 320 is expanded outward to form the outer periphery expanding portion 343,
The outer periphery expanding portion 343 is hooked around the cartridge mounting hole 331 so that the filtration cartridge 320 is detachably mounted on the cartridge mounting hole 331
Nonpoint pollution treatment facility.
6. The method of claim 5,
A cartridge socket 332 is attached and fixed to the horizontal plate 330 to form the cartridge receiving hole 331,
Characterized in that the cartridge housing (341) is fitted into the cartridge socket (332)
Nonpoint pollution treatment facility.
8. The method of claim 7,
A part of the outer periphery of the upper portion of the cartridge housing is protruded to form an obstacle exit,
Wherein the cartridge socket is formed with a locking groove corresponding to the locking hole exit,
Wherein the cartridge housing is inserted into and detached from the cartridge socket by inserting the cartridge housing into the cartridge socket and then rotating the cartridge housing so that the locking hole is fitted into the locking groove.
Nonpoint pollution treatment facility.
5. The method of claim 4,
Further comprising a porous pipe (342) located inside the cartridge housing to prevent leakage of the floating particulate matter and to discharge water to be treated, wherein the porous pipe is connected to the liquid piercing hole
Nonpoint pollution treatment facility.
5. The method of claim 4,
And a backwash water pipe is connected to the cartridge housing to backwash the filter material in the common filter medium space in the cartridge housing
Nonpoint pollution treatment facility.
5. The method of claim 4,
Wherein the filtered water return pipe is connected to the cartridge housing,
And the filtered water conveyed by the filtered water conveyance pipe backwashes the floating type filter material in the cartridge housing
Nonpoint pollution treatment facility.
10. The method of claim 9,
And a nozzle extension pipe (342a) connected to the filtered water return pipe and extending to the inside of the cartridge housing so as to backwash the floating type filter material in the cartridge housing with the backwash water flowing from the filtered water return pipe Featured
Nonpoint pollution treatment facility.
13. The method of claim 12,
Wherein the nozzle extension pipe extends into the hole through the water hole,
During the water treatment, filtered water is discharged to the upper portion of the filtration cartridge through the porous pipe and the water flow hole,
And backwashing the floating image material in the cartridge housing through the water hole and the nozzle extension pipe during backwashing
Nonpoint pollution treatment facility.
14. The method of claim 13,
The water passage hole 361 has a double water passage structure,
The dual structure water passage structure has an outer through hole 361a and an inner through hole 361b formed in the outer hole and the inner hole 361b is connected to the outer hole 361a by a support piece 361c However,
Wherein the outer through hole is connected to the pipe,
Wherein the inner through hole is connected to the nozzle extension pipe and the other is connected to the filtered water return pipe,
During the water treatment, the filtered water is discharged through the hole and the outer hole,
And the backwash water flowing from the filtered water conveyance pipe is injected into the cartridge housing through the inner hole and the nozzle extension pipe during backwashing
Nonpoint pollution treatment facility.
5. The method of claim 4,
The cartridge housing further includes a deformation film (345), wherein the deformation film is a material that flows along the water flow,
Wherein the deformation film deforms convexly toward the inside of the cartridge housing according to the flow of water during the water treatment to reduce the volume of the filtration tank common-
Nonpoint pollution treatment facility.
5. The method of claim 4,
A buoyancy plate (346) is installed in the inside of the cartridge housing to receive a force in the upward direction by buoyancy during water treatment to reduce the volume of the filtration tank common-
And when the backwash is carried out, the water is moved downward as the flow of water or the water level becomes lower, thereby increasing the volume of the filtration tank common-
Nonpoint pollution treatment facility.
17. The method of claim 16,
Further comprising a pouring pipe (342) located inside the cartridge housing to prevent leakage of the pouring filter medium and to discharge the water to be treated, wherein the pouring pipe is connected to the water pouring hole,
The buoyancy plate is formed with a buoyancy plate hole (347) through which the buoyant plate is fitted so that the buoyant plate can move up and down.
The lower portion of the buoyant plate and the bottom of the cartridge housing are connected to each other by a blocking membrane 348. The blocking membrane covers the pores and blocks inflow of water to be treated into the lower pores of the buoyancy plate,
Wherein the barrier membrane is a flowing material and is folded when the buoyant plate moves downward and is expanded when the buoyant plate moves upward.
Nonpoint pollution treatment facility.
The method according to claim 1,
A screen device is installed in the pre-treatment tank,
Wherein the screen device includes an induction pipe (232) for allowing the water to flow in a downward direction to flow into the filtration tank so that the flow of the water to be treated in the pre-treatment tank can flow upward and downward, And an end portion 232a of the through-
Nonpoint pollution treatment facility.
19. The method of claim 18,
The screen device is provided with a screen 210 and a pre-processing filtration unit 220. The object to be processed in the pre-treatment tank forms a flow in the upward direction and passes through the screen and the pre-filtration unit, The object water flows downward through the through hole after forming a downward flow,
The screen device includes a housing (231) with a bottom open, the screen is installed inside the housing, the pre-filtration part is located at the top of the screen,
The screen device includes a screen device body 234 and a support leg 233 for separating and fixing the screen device body from the preprocessing bath bottom 201,
The upper part of the housing is opened to form a floating contaminant passage hole (235), and the upper part of the housing is opened to form a floating contaminant passage hole (235)
Wherein the screen is formed with an inclined surface in an upward direction toward the floating contaminant hole so that the floating contaminant of the object to be treated in the upward flow can move to the upper portion of the pre-treatment tank after passing through the floating contaminant passage hole, Characterized in that the pollutant slides and tops the screen to prevent clogging of the screen
Nonpoint pollution treatment facility.
A filtration cartridge in which the object to be treated is filtered in a bottom-up manner and the filtered water forms a downward flow to backwash,
Wherein the volume of the floating type filter medium is changed by the variable means,
The variable means comprises:
Characterized in that the volume of the floating space is reduced according to the flow of water during the water treatment and the volume of the floating space is increased according to the flow of the water during backwashing
Filter cartridges.
Installed in the non-point pollution treatment facility of paragraph 3
Filter cartridges.
KR1020150103859A 2015-07-22 2015-07-22 Filter cartridge and the non-point polution reducing system KR101799513B1 (en)

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CN106836297A (en) * 2017-02-26 2017-06-13 陈益民 Concrete prefabricated spherical sewer pipe inspection shaft
KR101884876B1 (en) * 2017-12-08 2018-08-03 한국건설기술연구원 Non-point pollution reducing system having a modular filter apparatus
KR102141316B1 (en) * 2019-10-31 2020-08-04 박소민 Advanced sewage treatment complex carrier module and alkaline solid carrier and acidic solid carrier

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KR101242378B1 (en) 2012-11-26 2013-03-15 (주)이앤씨 Back washing type apparatus for disposing non-point pollution source using floater

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KR101384490B1 (en) * 2012-03-15 2014-04-15 (주) 한국엔피기술 Auto storm treatment
KR101243415B1 (en) * 2012-07-04 2013-03-13 최중철 Rainwater purification apparatus
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KR100894022B1 (en) 2008-09-09 2009-04-17 주식회사 한솔환경산업 Non-point source contaminant treatment apparatus
KR101242378B1 (en) 2012-11-26 2013-03-15 (주)이앤씨 Back washing type apparatus for disposing non-point pollution source using floater

Cited By (3)

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CN106836297A (en) * 2017-02-26 2017-06-13 陈益民 Concrete prefabricated spherical sewer pipe inspection shaft
KR101884876B1 (en) * 2017-12-08 2018-08-03 한국건설기술연구원 Non-point pollution reducing system having a modular filter apparatus
KR102141316B1 (en) * 2019-10-31 2020-08-04 박소민 Advanced sewage treatment complex carrier module and alkaline solid carrier and acidic solid carrier

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