KR101904890B1 - Nonpoint Pollution Treatment Apparatus - Google Patents

Abstract

The present invention provides a nonpoint pollution treatment apparatus comprising: a preprocessing tank having an inlet port and an outlet port to preprocess contaminated water supplied through the inlet port, and discharge the preprocessed contaminated water through the outlet port; and a filtering tank connected to the preprocessing tank to receive the preprocessed contaminated water and having a filtering chamber, the filtering tank separating pollutants by the filtering chamber to discharge clean water. The filtering chamber has an outer pipe configured to filter the pollutants and formed with an outer hole through which the filtered fluid flows to the inside, an inner pipe installed in the outer pipe and formed with an inner hole through which the filtered fluid flows to the inside, and a filter interposed between the outer and inner pipes to separate the pollutants from the contaminated water. Therefore, the first and second screens attenuate kinetic energy of irregular pollution source.

Description

{Nonpoint Pollution Treatment Apparatus}

The present invention relates to a non-point pollution abatement apparatus, and more particularly, to a non-point pollution abatement apparatus for stabilizing a flow of water in a pretreatment tank during a non-point pollution treatment process and efficiently separating non-point pollution using a filtration chamber in a filtration tank .

Non-point source (non-point source) refers to a source of emission of water pollutants unspecified at unspecified places such as cities, roads, farmland, mountainous areas, and construction sites (Water Environment Conservation Act [Implementation 2018.1.18. ] [Law No. 14532, January 1, 2017, Partial Amendment] Article 2. (2)).

Non-point pollution sources are difficult to collect because the pollutant discharge and discharge routes are not clearly distinguished and it is difficult to design and maintain the treatment facilities because the amount of generated / discharged amount greatly depends on weather conditions such as precipitation.

The pollutants that are generated are: Sediment, Nutrients, Bacteria & Viruses, Oil & Grease, Metals, Organics, Pesticides, Gross Pollutants).

Techniques for treating such non-point pollution sources include device type, natural type, and LID (Low Impact Development), and the types of the facilities are classified according to the type of the facility or the location of the facility.

Equipment-type facilities include filtration type, vortex type, screen type, biological treatment type and the like, and the filtration type facilities include the filter material. The filter material may be a granular material such as granular material, a rope or a fibrous material However, most of them are operated using aggregate type filter media.

The filtration-type facility is operated on the basis of a treatment device for treating rainfed effluent in a pretreatment tank (or a needle bed) first and then removing contaminants in rainfall by using sedimentation, filtration, adsorption, or the like.

In the case of existing filtration facilities, a rectifier or a vortex vortex is applied to improve the stability of water flow and settling of solids in the pretreatment tank, but the efficiency of these is not large and the treatment efficiency in the filtration tank is high. There is a problem that the capacity is small and the filter material is blocked, and therefore, there is a need for improvement.

In addition, in the case of a retrofit system installed recently, it is difficult to perform effective backwash treatment. In order to accomplish this, air and water are uniformly dispersed at a constant pressure The state needs backfat.

There are various types of nozzles used for backwashing, and various types of nozzles can be applied depending on the operation mode. In particular, it is required to develop more stable and effective facilities by selecting the nozzles according to the morphological characteristics of the nonpoint source and performing backwashing under optimal conditions.

Korean Patent No. 10-1826790

It is an object of the present invention to provide an apparatus capable of delaying the problem that the treatment efficiency in the filtration tank is high and the treatment capacity is large and the filter material is blocked.

Another object of the present invention is to provide a device capable of inducing a stable flow in a pretreatment tank.

In order to solve the above problems, a non-point pollution abatement device of the present invention includes an inlet and an outlet, a pretreatment tank for receiving and pre-treating polluted water through the inlet, and allowing the pretreated polluted water to flow out to the outlet; And a filtration tank connected to the pretreatment tank to receive the pretreated polluted water and provided with a filtration chamber therein and capable of separating pollutants through the filtration chamber to discharge clean water, An outer tube having an outer hole for allowing contaminants to be filtered so as to allow the filtered fluid to flow therein; An inner tube installed inside the outer tube and having an inner hole for allowing the filtered fluid to flow therein; And a filter unit installed between the outer tube and the inner tube and separating contaminants from the contaminated water.

According to an embodiment of the present invention, the pretreatment vessel is provided with a first screen and a second screen adjacent to the inlet so as to reduce the kinetic energy of the contaminated water and to keep the direction of movement of the contaminated water constant. 2 screen is installed.

Preferably, the second screen may further include an oil removal chamber configured to filter the oil component from the contaminants.

Preferably, the filtration chamber further comprises a fiber filter provided between the inner tube and the filter member.

According to another embodiment of the present invention, the apparatus further comprises a backwash water tank connected to the filtrate water tank and provided with clean water provided from the filtration water tank back to the filtration chamber to enable backwashing of the filtration chamber, A first retrofit tube installed in the backwash water tank and capable of supplying purified water in the backwash water tank to the filtrate tank; A second reverse osmosis tube having a plurality of injection holes and connected to the first reverse osmosis tube and accommodated inside the outer tube so as to wind the outer circumference of the inner tube; And a backwash pump connected to the first retro-tubing tube so as to be capable of providing a pumping force to enable the purified water in the backwash water tank to be supplied into the filtration chamber through the injection hole.

The backwash water tank may further include a backwash blower connected to the first reverse osmosis pipe to supply backwash air to the hole of the second backwash tube through the first reverse osmosis tube.

The filtered water tank is provided with the contaminated water pretreated in the pretreatment tank through the outlet.

The outlet may be formed in an upper portion of the outer wall of the pretreatment tank, and the pretreated water supplied to the filtering water tank may flow downward in the filtration water tank.

The filtration water tank is provided with a support plate coupled to a bottom surface of the filtration chamber to support the filtration chamber, and the support plate includes a lamination part for accumulating contaminants filtered in the filtration chamber, So that the ends can be joined.

The outlet is formed in the lower part of the outer wall of the pretreatment tank, and the pretreated water supplied to the filtering water tank may flow upward in the filtration water tank.

In the present invention, the first and second screens of the pretreatment tank are installed for stable treatment of pollutants of non-point pollution sources to attenuate kinetic energy of irregular pollutants, and to stabilize the direction of kinetic energy, So that turbulence can be prevented and the sedimentation efficiency can be increased.

In addition, the present invention is advantageous in that a circular cartridge type filtration chamber delays pore clogging in a one-dimensional cross-sectional filtration system with a three-dimensional cylindrical granular structure, and has a high efficiency nozzle in backwash, Large, short separation distance can improve the efficiency of backwash.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side sectional view showing a structure of a non-point pollution abatement device of the present invention and a flow of fluid according to the first embodiment; Fig.
Fig. 2 is a perspective view showing the structure of the first and second screens and the flow of the fluid in the pretreatment tank in the apparatus of Fig. 1; Fig.
3 is a cross-sectional view illustrating the structure of the filtration chamber and the flow of fluid in the apparatus of FIG.
4A is a side cross-sectional view showing the structure of a non-point pollution reduction apparatus of the present invention and the flow of fluid according to the second embodiment.
Figure 4b is a top view of Figure 4a.
Fig. 5A is a longitudinal sectional view showing the structure of the filtration chamber in the apparatus of Fig. 4A. Fig.
Fig. 5B is a cross-sectional view showing the structure of the filtration chamber in the apparatus of Fig. 4A. Fig.
FIG. 6A is a perspective view showing an example in which backwash is performed in the filtration chamber in the apparatus of FIG. 4A. FIG.
FIG. 6B is a longitudinal sectional view of FIG. 6A. FIG.
FIG. 7A is a side cross-sectional view showing the structure of the non-point pollution reduction device of the present invention and the flow of fluid according to the third embodiment. FIG.
FIG. 7B is a plan view of FIG. 7A. FIG.
Fig. 8 is a longitudinal sectional view showing the structure of a filtration chamber in the apparatus of Fig. 7A. Fig.
9 is a perspective view showing the backwash water tank nonwoven fabric and the fixing frame in the backwash water tank in the apparatus of Fig. 7A. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and redundant description thereof will be omitted. The suffix "part" for the constituent elements used in the following description is to be given or mixed with consideration only for ease of specification, and does not have a meaning or role that distinguishes itself. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, although other elements may also be present in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The nonpoint contamination abatement apparatus (100, 200, 300) of the present invention is an apparatus for treating a nonpoint contamination source. The non-point pollution sources 100, 200, and 300 of the present invention can remove the foreign substances and oil, etc. through sedimentation, filtration, and adsorption. have.

First, referring to Figs. 1 to 3, a first embodiment of the apparatus for reducing non-point pollution (100) of the present invention will be described.

The non-point pollution abatement apparatus (100) of the present invention includes a pretreatment tank (10) and a filtration water tank (20).

The pretreatment tank 10 is provided with an inlet 13a for introducing contaminated water and an outlet 13b for discharging the contaminated water, and is adapted to receive and process the contaminated water.

Referring to FIG. 1, an inlet 13a and an outlet 13b are formed on the outer wall 13 of the pretreatment tank 10.

In the pretreatment tank 10, first and second screens 15 and 17 may be provided.

The first screen 15 may be disposed adjacent to the inlet 13a of the pretreatment bath 10 and the second screen 17 may be disposed adjacent to the outlet 13b of the pretreatment bath 10.

A plurality of holes (15b, 17b) are formed in each of the first and second screens (15, 17) so as to restrict the passage of relatively large particles of non-point contaminants. FIG. 2 shows an example in which about 90 holes are formed. A plurality of holes 15b and 17b are formed at the same positions of the first and second screens 15 and 17, But is not limited thereto.

It is preferable that the sum of the areas of the plurality of holes 15b and 17b of each of the first and second screens 15 and 17 is 30% or more of the inner diameter of the inlet 13a into which inflow water flows. Further, it is preferable to make a distance of 20 cm or more from the bottom surface of the pretreatment tank 10.

Thus, the first and second screens 15 and 17 are provided in the pretreatment tank 10 to reduce the kinetic energy of the contaminated water and to keep the moving direction of the contaminated water constant. In the non-point pollution abatement apparatus 100 of the present invention, in the pretreatment tank 10, relatively large and heavy substances are precipitated in the contaminants flowing into the apparatus, which reduces the kinetic energy and keeps the direction of motion constant, . ≪ / RTI >

FIG. 1 shows an example in which the contaminated water flows by the first and second screens 15 and 17 in the pretreatment tank 10, and contaminants are accumulated in the lower part of the pretreatment tank 10.

The second screen 17 may further include an oil removal chamber 17a configured to filter the oil component from contaminants contained in the polluted water. The oil removal chamber 17a is preferably installed on the upper portion of the second screen 17 to filter the substances of the oil component which are relatively light and float on the top of the contaminated water.

The filtration water tank 20 is connected to the pretreatment tank 10 to receive the pretreated water in the pretreatment tank 10 and the filtration chamber 21 is installed inside the filtration water tank 20. The filtration water tank 20 is provided with the contaminated water which has been pretreated through the outlet 13b of the pretreatment tank 10. As shown in FIG. 1, an outlet 13b is formed in the upper part of the pretreatment tank 10, Enabling downflow flow.

In the filtration water tank 20, the polluted water is adsorbed or filtered through the filtration chamber 21, and the separated purified water is discharged to the outside.

The filtration chamber 21 comprises an outer tube 22, an inner tube 23 and a filter element 24.

The outer tube 22 is provided with an outer hole 22a to enable the contaminant to be filtered so that the filtered fluid can be introduced therein. The outer hole 22a of the outer tube 22 is configured to filter relatively large particles out of the contaminants. The outer holes 22a may be formed in the outer tube 22 in plurality, for example.

The inner tube 23 is installed inside the outer tube 22 and has an inner hole 23a for allowing the filtered fluid to flow therein. The inner tube 23 is provided with a flow passage 23c for moving the filtered purified water around the inner periphery thereof. The inner hole 23a may be formed in plurality in the inner tube 23 as an example. In addition, the inner tube 23 may have an engagement end 23b to be engageable with a support plate 26, which will be described later.

The inner tube (23) may have a shorter length than the outer tube (22). Referring to FIG. 3, an example in which the inner tube 23 is installed inside the outer tube 22 with a shorter length than the outer tube 22 is shown.

The filter unit 24 is provided between the outer tube 22 and the inner tube 23 to enable the contaminants to be separated from the contaminated water. The filter unit 24 is preferably made of a porous material so as to separate pollutants by adsorbing or filtering pollutants. Although not clearly shown in Fig. 3, there is shown an example in which the filter unit 24 is provided between the inner tube 23 and the outer tube 22, and the contaminated water is introduced.

The filtration chamber 21 may further include a fiber filter 25 that can be installed between the inner tube 23 and the filter element 24. [ The contaminant separation performance of the filtration chamber 21 can be further improved by the fiber filter 25. [

The filtration water tank 20 may be provided with a support plate 26 coupled to the bottom surface of the filtration chamber 21 to support the filtration chamber 21. The support plate 26 has a lamination portion 26a in which the contaminants filtered in the filtration chamber 21 are accumulated. The support plate 26 is provided with a coupling hole 26b in which the coupling end 23b of the inner tube 23 is securely coupled to the coupling hole 26b so that the contaminants accumulated in the lamination portion 26a prevent. On the other hand, the flow path 23c of the inner tube 23 communicates with the lower side of the support plate 26 to allow the clean water to flow downwardly of the support plate 26 and to be discharged to the outside through the discharge tube 27.

Hereinafter, a second embodiment of the non-point pollution reduction apparatus 200 of the present invention will be described with reference to Figs. 4A to 6B. The nonpoint pollution reduction apparatus 200 of the second embodiment is different from the first embodiment in that it further includes a backwash water tank 230 to back the filtration chamber 221.

The apparatus for reducing non-point pollution (200) of the present invention includes a pretreatment tank (210) and a filtration water tank (220).

The pretreatment tank 210 is provided with an inlet 213a through which the contaminated water flows and an outlet 213b through which the contaminated water flows out.

4A, an inlet 213a and an outlet 213b are formed on the outer wall 213 of the pretreatment tank 210. As shown in FIG.

The first and second screens 215 and 217 may be installed in the pretreatment tank 210.

The first screen 215 may be disposed adjacent to the inlet 213a of the pretreatment vessel 210 and the second screen 217 may be disposed adjacent to the outlet 213b of the pretreatment vessel 210. [

A plurality of holes 215b and 217b are formed in each of the first and second screens 215 and 217 to limit the passage of relatively large particles of non-point pollutants. FIG. 2 shows an example in which about 90 holes are formed. A plurality of holes 215b and 217b are formed at the same positions of the first and second screens 215 and 217, But is not limited thereto.

The sum of the areas of the plurality of holes 215b and 217b of each of the first and second screens 215 and 217 is preferably 30% or more of the inner diameter of the inlet 213a into which inflow water flows. Further, it is preferable to make a distance of 20 cm or more from the bottom surface of the pretreatment tank 210.

Thus, the first and second screens 215 and 217 are provided in the pretreatment tank 210 to reduce the kinetic energy of the contaminated water and keep the direction of motion of the contaminated water constant. In the non-point pollution abatement apparatus 200 of the present invention, a relatively large and heavy material is precipitated in the contaminants introduced into the pretreatment tank 210. This reduces the kinetic energy and keeps the direction of motion constant, . ≪ / RTI >

FIG. 1 shows an example in which the contaminated water flows through the first and second screens 215 and 217 in the pretreatment tank 210, and contaminants are accumulated in the lower part of the pretreatment tank 210.

The second screen 217 may further include an oil removal chamber 217a configured to filter the oil component from contaminants contained in the polluted water. The oil removal chamber 217a is preferably installed on the upper portion of the second screen 217 to filter the substances of the oil component that are relatively light and float on top of the contaminated water.

The filtration water tank 220 is connected to the pretreatment tank 210 so as to receive the pretreated water in the pretreatment tank 210 and the filtration chamber 221 is installed in the filtration water tank 220. The filtration water tank 220 is provided with the contaminated water that has been pretreated through the outlet 213b of the pretreatment tank 210. An outlet 213b is formed at an upper portion of the pretreatment tank 210 as shown in FIG. Enabling downflow flow.

In the filtration water tank 220, the polluted water is sucked or filtered through the filtration chamber 221, and the clean water with the separated pollutants is discharged to the outside of the filtration water tank 220.

The filtration chamber 221 includes an outer tube 222, an inner tube 223, and a filter element 224.

The outer tube 222 has an outer hole 222a to filter the contaminant to allow the filtered fluid to flow therein. The outer hole 222a of the outer tube 222 is configured to filter relatively large particles out of the contaminants.

The inner tube 223 is installed inside the outer tube 222 and has an inner hole 223a for allowing the filtered fluid to flow therein. Further, the inner pipe 223 has a flow path 223c for moving the filtered purified water around the inner periphery thereof. In addition, the inner tube 223 may have an engaging end 223b to be engageable with a support plate 226 described later.

The inner tube 223 may have a shorter length than the outer tube 222. 5A, an inner tube 223 is installed on the lower side of the outer tube 222 with a shorter length than the outer tube 222.

The filter unit 224 is provided between the outer tube 222 and the inner tube 223 to enable the contaminants to be separated from the contaminated water. The filter unit 224 is preferably made of a porous material so as to separate pollutants by adsorbing or filtering pollutants. Referring to FIGS. 5A and 5B, a filter unit 224 is provided between the inner tube 223 and the outer tube 222 to show the inflow of the contaminated water.

The filtration chamber 221 may further include a fiber filter 225 that can be installed between the inner tube 223 and the filter unit 224. [ The contaminant separation performance of the filtration chamber 221 can be further improved by the fiber filter 225. [

The filtration water tank 220 may be provided with a support plate 226 coupled to the bottom surface of the filtration chamber 221 to support the filtration chamber 221. The support plate 226 has a lamination portion 226a in which the contaminants filtered in the filtration chamber 221 are accumulated. The support plate 226 has a coupling hole 226b in which the coupling end 223b of the inner tube 223 is securely coupled to the coupling hole 226b so that the contaminants accumulated in the lamination portion 226a prevent. The flow path 223c of the inner tube 223 communicates with the lower side of the support plate 226 to allow the clean water to flow downwardly of the support plate 226 and to be discharged to the outside through the discharge tube 227. [

The non-point pollution abatement apparatus 200 of the present invention may further include a backwash water tank 230. The backwash water tank 230 provides the purified water supplied from the filtration water tank 220 back to the filtration water tank 220 and injects it into the filtration chamber 221 to enable backwashing.

The backwash water tank 230 includes first and second backwash tubes 231 and 232 and a backwash pump 233.

The first stationary tubing 231 is installed in the backwash water tank 230 and the filtration water tank 220 so as to allow the backwash water tank 230 and the filtration water tank 220 to communicate with each other so that the clean water in the backwash water tank 230 is supplied to the filtration water tank 220 ).

The second retrofit tube 232 is connected to the first retrofit tube 231 and is accommodated inside the outer tube 222 to wind the outer tube of the inner tube 223. 5A shows a second retro-tubular tube 232 having a coil shape so as to wind the outer circumference of the inner tube 223 and a second retro-tubular tube 232 to which the second tubular tube 232 can be injected into the filter element 224 and the outer tube 222 An example in which a plurality of injection holes 232a are formed is shown.

The backwash pump 233 is connected to the first backwash tube 231 to enable the first backwash tube 231 to provide a pumping force. So that purified water in the backwash water tank 230 can be supplied into the filtration chamber 221 through the hole of the second retro-clean pipe 232. The backwash pump 233 may be, for example, an underwater pump.

4A, a first retrofit tube 231 is installed in the backwash water tank 230 and the filtration water tank 220 so as to communicate the backwash water tank 230 and the filtration water tank 220. In the filtration water tank 220, The second retro-clean tube 232 is connected to the end of the first retro-tubular tube 231 disposed in the second tubular tube 231. [ A backwash pump 233 is connected to the first reverse osmosis pipe 231 to allow the purified water in the backwash water tank 230 to be pumped to be able to flow into the filtration water tank 220.

The backwash water tank (230) may further include a backwash blower (234). The backwash blower 234 is connected to the first backwash tube 231 through the first backwash tube 231 to inject backwash air into the injection hole 232a of the second backwash tube 232. The backwash blower 234 preferably operates selectively with the backwash pump 233 so that the injection of air and water through the injection hole 232a in the filtration chamber 221 can be selectively made.

4A, the pretreatment tank 210 and the filtration water tank 220 are provided with a sludge discharge pipe 235a having a flow path for discharging contaminants and a sludge pump 235b for providing a pumping force to the sludge discharge pipe 235a. Can be installed. The sludge pump 235b may be, for example, an underwater pump.

4A shows an example in which the sludge discharge pipe 235a is connected to the lower part of the pretreatment tank 210 and the lamination part 226a in the filtration water tank 220 and extends upward in the pretreatment tank 210. [ At the end of the sludge discharge pipe 235a, a sludge pump 235b is provided to provide a pumping force so that the pollutant can be sucked in. The sludge discharge pipe 235a may be provided with a check valve 235c which prevents the contaminants flowing back into the pretreatment tank 210 and the filtration water tank 220 from moving.

The non-point pollution reduction apparatus 200 of the present invention may further include a control unit 240. The control unit 240 is electrically connected to at least one of the backwash pump 233, the backwash blower 234 and the sludge pump 235b to supply at least one of the backwash pump 233, the backwash blower 234 and the sludge pump 235b .

4A shows an example in which a backwash pump 233, a backwash blower 234, a sludge pump 235b and a control unit 240 are installed in the machine room 245. [

Hereinafter, a third embodiment of the non-point pollution reduction apparatus 300 of the present invention will be described with reference to FIGS. 7A to 9. The non-point pollution abatement device 300 of the third embodiment is characterized in that the outlet 313b of the pretreatment tank 310 is formed below the pretreatment tank 310 so that the flow of the pretreated water in the filtration water tank 320 flows below Which is different from the first embodiment and the second embodiment.

The non-point pollution abatement apparatus (300) of the present invention includes a pretreatment tank (310) and a filtration water tank (320).

The pretreatment tank 310 is provided with an inlet 313a for introducing the contaminated water and an outlet 313b for discharging the contaminated water, and is adapted to receive and process the contaminated water.

Referring to FIG. 7A, the inlet 313a is formed on the outer wall 313 of the pretreatment tank 310, and the outlet 313b is formed on the outer wall 313 of the pretreatment vessel 310. FIG.

The first and second screens 315 and 217 may be installed in the pretreatment tank 310.

The first screen 315 is disposed adjacent to the inlet 313a of the pretreatment vessel 310 and the second screen 317 is disposed adjacent to the side of the pretreatment vessel 310 on which the outlet 313b is formed have.

A plurality of holes may be formed in each of the first and second screens 315 and 317 to limit the passage of non-point contaminants of relatively large particles and may be formed in the detailed structure of the first and second screens 315 and 317 The description of the first embodiment described in Figs. 1 and 2 will be omitted.

The first and second screens 315 and 317 are installed in the pretreatment tank 310 to reduce the kinetic energy of the contaminated water and to keep the direction of movement of the contaminated water constant. In the non-point pollution abatement apparatus 300 of the present invention, relatively large and heavy substances are precipitated in the contaminants introduced into the pretreatment tank 310. This reduces the kinetic energy and keeps the direction of motion constant, . ≪ / RTI >

7A shows an example in which the contaminated water flows by the first and second screens 315 and 317 in the pretreatment tank 310 and contaminants are accumulated in the lower part of the pretreatment tank 310. [

The second screen 317 may further include an oil removal chamber 317a configured to filter the oil component from contaminants contained in the polluted water. The oil removal chamber 317a is preferably installed on the upper portion of the second screen 317 to filter the oil component of the relatively lighter water that floats above the contaminated water.

The filtration water tank 320 is connected to the pretreatment tank 310 to receive the pretreated water in the pretreatment tank 310 and the filtration chamber 321 is installed in the filtration water tank 320. The filtration water tank 320 is provided with the contaminated water that has been pretreated through the outlet 313b of the pretreatment tank 310. As shown in Figure 7a, an outlet 313b is formed in the lower portion of the pretreatment tank 310, Enabling upflow flow inside the filtration water tank 320.

In the filtration water tank 320, the polluted water is adsorbed or filtered through the filtration chamber 321, and the clean water from which the pollutant is separated is discharged to the outside of the filtration water tank 320.

The filtration chamber 321 includes an outer tube 322, an inner tube 323, and a filter element 324.

The outer tube 322 has an outer hole 322a to allow contaminants to be filtered so that the filtered fluid can be introduced therein. The outer hole 322a of the outer tube 322 is configured to filter relatively large particles out of the contaminants.

The inner tube 323 is installed inside the outer tube 322 and has an inner hole 323a for allowing the filtered fluid to flow therein. The inner pipe 323 is provided with a flow path 323c for moving the filtered purified water around the inner periphery. In addition, the inner tube 323 may have an engagement end 323b to be engageable with a support plate 326 described later.

The inner tube 323 may have a shorter length than the outer tube 322. Referring to FIG. 5A, an example in which the inner tube 323 is installed on the upper side of the outer tube 322 with a shorter length than the outer tube 322 is shown.

The filter unit 324 is disposed between the outer tube 322 and the inner tube 323 to enable the contaminants to be separated from the contaminated water. The filter unit 324 is preferably made of a porous material so as to separate pollutants by adsorbing or filtering pollutants. 8, there is shown an example of a filtration chamber 321 in which a filter medium portion 324 is provided between an inner tube 323 and an outer tube 322. As shown in Fig. 7A, an example in which contaminated water flows into the lower portion of the filtration chamber 321 is shown.

The filtration chamber 321 may further include a fiber filter 325 that can be installed between the inner tube 323 and the filter unit 324. The contaminant separation performance of the filtration chamber 321 can be further improved by the fiber filter 325. [

The filtration water tank 320 may be provided with a support plate 326 coupled to the upper portion of the filtration chamber 321 to support the filtration chamber 321. The filtration water tank 320 has a layered portion 326a for collecting the contaminants filtered in the filtration chamber 321 at the bottom of the filtration water tank 320. The support plate 326 has a coupling hole 326b in which the coupling end 323b of the inner tube 323 is securely coupled to the coupling hole 326b so that the contaminants accumulated in the lamination portion 326a prevent. On the other hand, the flow path 323c of the inner tube 323 communicates with the lower side of the support plate 326 to allow the clean water to flow downwardly of the support plate 326 and to be discharged to the outside through the discharge tube 327. [

The non-point pollution abatement device 300 of the present invention may further include a backwash water tank 330. The backwash water tank 330 provides the purified water supplied from the filtration water tank 320 back to the filtration water tank 320 and injects it into the filtration chamber 321 to enable backwashing.

The backwash water tank 330 includes first and second backwash tubes 331 and 232 and a backwash pump 333.

The first reverse osmosis pipe 331 is installed in the backwash water tank 330 and the filtration water tank 320 so as to communicate the backwash water tank 330 and the filtration water tank 320 to connect the clean water in the backwash water tank 330 to the filtration water tank 320 ).

The second retrofit tube 332 is connected to the first retrofit tube 331 and is accommodated inside the outer tube 322 so as to wind the outer tube 323. 5A shows a second retro-tubular conduit 332 formed in a coil shape so as to surround the outer circumference of the inner conduit 323 and a second retro-tubular conduit 332 in which the second tubular conduit 332 can be injected into the filter medium portion 324 and the outer tube 322 An example in which a plurality of ejection holes 332a are formed is shown.

The backwash pump 333 is connected to the first backwash pipe 331 to enable pumping power to be supplied to the first backwash pipe 331. So that clean water in the backwash water tank 330 can be supplied into the filtration chamber 321 through the hole of the second retro-clean pipe 332. The backwash pump 333 may be, for example, an underwater pump.

7A, a first retrofit tube 331 is installed in the backwash water tank 330 and the filtration water tank 320 to communicate the backwash water tank 330 and the filtration water tank 320, and the filtration water tank 320, And the second retro-clean pipe 332 is connected to the end of the first retro-tubular tube 331 disposed in the second tubular tube 331. [ A backwash pump 333 is connected to the first reverse osmosis pipe 331 so that clean water in the backwash water tank 330 can be pumped to be able to flow into the filtration water tank 320.

The backwash water tank 330 may further include a backwash blower 334. The backwash blower 334 is connected to the first backwash pipe 331 to inject backwash air into the injection hole 332a of the second backwash pipe 332 through the first backwash pipe 331. The backwash blower 334 preferably operates selectively with the backwash pump 333 to enable selective injection of air and water through the injection holes 332a in the filtration chamber 321. [

7A, the pretreatment tank 310 and the filtering water tank 320 are provided with a sludge discharge pipe 335a having a flow path capable of discharging contaminants and a sludge pump 335b providing a pumping force to the sludge discharge pipe 335a. Can be installed. The sludge pump 335b may be, for example, an underwater pump.

7A shows an example in which the sludge discharge pipe 335a is connected to the lower portion of the pretreatment tank 310 and the lamination portion formed on the bottom of the filtration water tank 320 and extends upward in the pretreatment tank 310 . At the end of the sludge discharge pipe 335a, a sludge pump 335b is provided to provide a pumping force so that the pollutant can be sucked in.

The non-point pollution reduction apparatus 300 of the present invention may further include a control unit 340. The control unit 340 is electrically connected to at least one of the backwash pump 333, the backwash blower 334 and the sludge pump 335b to supply at least one of the backwash pump 333, the backwash blower 334, and the sludge pump 335b .

7A shows an example in which a backwash pump 333, a backwash blower 334, a sludge pump 335b, and a control unit 340 are installed in a machine room 345.

9 shows a fixing frame 336 fixed to the outer wall 339 so as to accommodate the backwash water tank nonwoven fabric 336a and the backwash water tank nonwoven fabric 336a in the backwash water tank 330. [

The non-point pollution abatement apparatuses 100, 200, and 300 described above are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified such that all or some of the embodiments are selectively combined .

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: Non-point pollution abatement device
10: Pre-treatment tank 13: Outer wall 13a: Inlet port 13b: Outlet 15: First screen 17: Second screen 15b, 17b: Multiple holes 17a:
The present invention relates to a filtration apparatus for a filtration apparatus which comprises a filtration tank and a filtration chamber, wherein the filtration chamber is provided with a filtration chamber, an outer tube, an outer tube, and an inner tube. 27: discharge pipe
200: Non-point pollution abatement device
210: pretreatment tank 213: outer wall 213a: inlet 213b: outlet 215: first screen 217: second screen 215b, 217b: plurality of holes 217a: oil removal chamber
The filtration chamber may be formed of a metal or a metal or a metal or a metal or a metal or the like. : Coupling portion
230: Backwash water tank 231: First reverse osmosis tube 232: Second reverse osmosis tube 232a: Injection hole 233: Backwash pump 234: Backwash blower 235a: Sludge 235a: Discharge tube 235b: Sludge pump 235c: Check valve 239: Backwash water tank wall 239a: Hole 239b: outlet hole 236: fixed frame 236a: nonwoven fabric
240:

Claims (10)

A pretreatment tank having an inlet and an outlet and provided with polluted water through the inlet for pretreatment and allowing the pretreated water to flow out to the outlet; And
And a filtering water tank connected to the pretreatment tank so as to receive the pretreated water, having a filtration chamber disposed therein, and capable of separating contaminants through the filtration chamber to discharge purified water,
Said filtration chamber comprising:
An outer tube having an outer hole for allowing contaminants to be filtered so as to allow the filtered fluid to flow therein;
An inner tube installed inside the outer tube and having an inner hole for allowing the filtered fluid to flow therein; And
And a filter unit installed between the outer tube and the inner tube for separating contaminants from the contaminated water,
Further comprising a backwash water tank connected to the filtration water tank and supplying clean water provided from the filtration water tank back to the filtration chamber to enable backwashing of the filtration chamber,
The backwash water tank,
A first retrofit tube installed in the backwash water tank and capable of supplying purified water in the backwash water tank to the filtrate tank;
A second reverse osmosis tube having a plurality of injection holes and connected to the first reverse osmosis tube and accommodated inside the outer tube so as to wind the outer circumference of the inner tube; And
And a backwash pump connected to the first reverse osmosis pipe so as to be capable of providing a pumping force so that clean water in the backwash water tank can be supplied into the filtration chamber through the injection hole. The method according to claim 1,
Characterized in that the pretreatment vessel is provided with a first screen adjacent to the inlet and a second screen adjacent to the outlet so as to reduce the kinetic energy of the contaminated water and to maintain a constant direction of movement of the contaminated water Non - point pollution abatement device. 3. The method of claim 2,
On the second screen,
Further comprising an oil removal chamber for filtering the oil component from the pollutants. The method according to claim 1,
Said filtration chamber comprising:
And a fiber filter provided between the inner tube and the filter member. delete The method according to claim 1,
The backwash water tank,
Further comprising a backwash blower connected to the first retro-tubular tube so as to supply backwash air to the holes of the second retro-tubular duct through the first backwind tubing. The method according to claim 1,
Wherein the filtered water tank is provided with the contaminated water pretreated in the pretreatment tank through the outlet. 8. The method of claim 7,
Wherein the outlet is formed on an outer wall of the pretreatment tank and the pretreated water supplied to the filtrate tank flows downward in the filtration water tank. 9. The method of claim 8,
Wherein the filtration water tank is provided with a support plate coupled to a bottom surface of the filtration chamber to support the filtration chamber,
Wherein the support plate comprises a lamination part for accumulating contaminants filtered in the filtration chamber and is adapted to engage an end of the inner tube. 8. The method of claim 7,
Wherein the outlet is formed in a lower portion of an outer wall of the pretreatment tank and the pretreated water supplied to the filtrate tank flows upward in the filtration water tank.

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