KR100605358B1 - A Pollutant purification filter - Google Patents

Abstract

The present invention relates to a contaminated water purification filter.

According to the present invention, an inlet canal formed with at least one inlet through which contaminated water can be introduced, and a filter material provided inside the inlet to purify contaminants of contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged is formed, the discharge pipe is provided to extend from the inner side to the outer side of the inlet, an upper cover covering the upper portion of the inlet, and the lower portion of the inlet By covering the lower cover and the opening and closing device for opening the lower cover to be opened and closed, various kinds of contaminants can be removed from the contaminated water by using various types of filter material according to the use, filter Disclosed is a technique in which ash is easily replaced.

Purification, filter, pollution

Description

A pollutant purification filter

1 is a front sectional view of a pollution correction filter according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the pollutant purification filter of FIG.

3 is a cross-sectional view of the pollution purification filter according to the application of the pollution purification filter of FIG.

4 is an operation state diagram of the pollution purification filter of FIG.

FIG. 5 and FIG. 6 are state diagrams used for the pollutant purification filter of FIG.

7, 8, 9 and 10 are exploded perspective views of the pollution purification filter according to the application example of the pollution purification filter of FIG.

11 is an exploded perspective view of the pollution correction filter according to the second embodiment of the present invention.

12 and 13 are state diagrams used for the pollutant purification filter of FIG.

* Description of the main components of the drawings *

100, 200: water purification filter 10, 201: drawing tube

10a: hole 10b: threshold

10c: hinge 10d: protrusion

10d-1: protrusion 20: filter material

30, 203: discharge pipe 30a: discharge hole

40, 204: top cover 40a: outlet

40b, 204b: filter re-entry 40c, 10b-1, 10d-1: through hole

40d, 204c: Insertion cap 40e: Handle

50, 205: lower cover 50a, 50b / 205a, 205b: cover piece

50c: hinge axis 60, 206: switchgear

60a, 206a: handle 60b: extended end

60c: opening and closing end 70, 207: casing

206b: wow 206c: wire rod

The present invention relates to a purification filter for removing contaminants from contaminated water.

Water pollution sources are divided into point sources and nonpoint sources for the convenience of prevention and management. Point sources refer to pollutants from which wastewater containing contaminants are discharged from sewers or ditches at specific locations, such as sewage plants, wastewater treatment plants, power plants, waste mines, oil tanks, oil wells, etc., and nonpoint sources are large areas scattered all over the place. Pollutants are emitted from the forest, and rainwater from deforestation areas, urban areas, construction sites, parking lots, and roads causes pollution by inflowing pollutants accumulated on the surface to rivers or the sea.

In general, there are various kinds of pollutants depending on the type of pollutant. Examples of such pollutants include particulate matter that is simply mixed with water and moves, oils or fats and oils that do not dissolve in water but float with water, Soluble substance which dissolves in water or becomes colloidal and moves with water.

Therefore, where a purifier for purifying contaminated water is to be installed, a purifier must be installed with a contaminant purification filter for purifying specific contaminants depending on the type of contaminant.

However, the conventional pollutant purification device has a problem that it is difficult to regenerate the filter when the pollutant purification filter reaches its end of life.

In addition, since only the pollutant purification filter configured for a specific pollutant has a meaning, it cannot be used for purifying pollutants of other pollutants depending on the purpose (for example, a filter for purifying sand purifies oil). Recall that it can't be substituted), which led to an increase in product cost due to small-scale production.

The present invention has been made to solve the conventional problems as described above, the present invention is, first, easy to replace the filter at the end of life, and second, the object of providing a technology that can be effectively applied to the removal of various contaminants. It is done.

Contaminated water purification filter according to the present invention for achieving the above object, the inlet tube is formed with at least one orifice that can be introduced into the contaminated water; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the drawing tube; A lower cover provided to cover the lower portion of the inlet and open and close; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The upper cover is further characterized in that at least one filter material inlet is formed so that the filter material can be introduced into the inlet.

The lower cover is further characterized in that at least one inlet is formed to allow the contaminated water to be drawn into the inlet, in this case, the outer cover of the inlet at a predetermined distance from the outer circumference of the inlet It is another feature to further include a casing provided.

In addition, the contaminated water purification filter according to the present invention for achieving the above object, the inlet tube is formed with at least one inlet through which the contaminated water can be introduced; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed, and an upper cover covering an upper portion of the drawing tube; A lower cover provided to cover the lower portion of the inlet and open and close; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The upper cover is further characterized in that at least one filter material inlet is formed so that the filter material can be introduced into the inlet.

The lower cover is further characterized in that at least one inlet is formed to allow the contaminated water to be drawn into the inlet, in this case, the outer cover of the inlet at a predetermined distance from the outer circumference of the inlet It is another feature to further include a casing provided.

In addition, the pollutant purification filter according to the present invention for achieving the above object, the tubular casing; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The upper cover is further characterized in that at least one filter material inlet is formed so that the filter material can be introduced into the inlet.

In addition, the pollutant purification filter according to the present invention for achieving the above object, the tubular casing; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged, and an upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The upper cover is further characterized in that at least one filter material inlet is formed so that the filter material can be introduced into the inlet.

In addition, in the contaminated water purification filter according to the present invention for achieving the above object, at least one or more inlet hole is formed in the side can be introduced into the contaminated water, the top surface is at least one filter that can be introduced into the filter material A re-entry opening is formed and the lower opening is opened; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; A lower cover provided to cover the lower portion of the inlet and open and close; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The lower cover is further characterized in that at least one inlet is formed to allow the contaminated water to be drawn into the inlet, in this case, the outer side of the inlet at a predetermined distance from the outer peripheral surface of the inlet It is another feature that further includes a casing provided in the.

In addition, in the contaminated water purification filter according to the present invention for achieving the above object, at least one or more inlet hole is formed in the side can be introduced into the contaminated water, the upper surface of the at least one filter that can be injected filter material At least one outlet hole through which the purified water purified by the re-inlet and the filter material is discharged, and a lower part of the inlet container; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; A lower cover provided to cover the lower portion of the inlet and open and close; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

The lower cover is further characterized in that at least one inlet is formed to allow the contaminated water to be drawn into the inlet, in this case, the outer cover of the inlet at a predetermined distance from the outer circumference of the inlet It is another feature to further include a casing provided.

In addition, the pollutant purification filter according to the present invention for achieving the above object, at least one filter inlet for inserting the filter material on the upper surface is formed, the lower casing; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And opening and closing device for opening and closing the lower cover; Characterized in that it comprises a.

In addition, the contaminated water purification filter according to the present invention for achieving the above object, at least one or more filter material inlet through which the filter material can be injected into the upper surface and at least one or more purified water discharged by the filter material is discharged A discharge hole is formed, the lower casing open; A filter material provided inside the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And opening and closing device for opening the lower cover; Characterized in that it comprises a.

In addition, in the above-described pollutant purification filter, the lower cover includes a left and right cover pieces folded downward about the diameter, and the opening and closing device, respectively, on the upper left and right sides of the upper cover to open and close the lower cover. A handle provided; An extension end extending downward from the handle and configured to rotate forward or reverse according to manipulation of the handle; And an opening and closing end that opens or locks an outer end of the left and right cover pieces while rotating in conjunction with a forward rotation or a reverse rotation of the extension end at the end of the extension end. It is characterized by including more specific.

In addition, in the above-described pollutant purification filter, the lower cover includes a left and right cover pieces folded downward about the diameter, and the opening and closing device, respectively, on the upper left and right sides of the upper cover to open and close the lower cover. A handle provided; An erlet which rotates forward or reverse according to the manipulation of the handle; And a wire wound and unwinded on one side of the bobbin, and the other side is fixedly connected to an outer end of the cover piece to open or lock the cover piece according to an operation of the handle. It includes a more specific feature to include.

Hereinafter, with reference to the accompanying drawings with respect to preferred embodiments of the present invention will be described in detail with respect to the present invention, overlapping description in the description of the various embodiments will be omitted or compressed as possible.

First Embodiment

1 is a cutaway view of a pollution correction filter according to a first embodiment of the present invention, Figure 2 is an exploded perspective view of the pollution purification filter of FIG.

1 and 2, the contaminated water purification filter 100 according to the present embodiment, the cylindrical inlet 10 is formed with the inlet hole (10a) through which the contaminated water is introduced, purifying the contaminants from the contaminated water A filter material 20, a discharge pipe 30 through which the purified water purified by the filter material 20 is discharged, an upper cover 40 and a lower cover 50 covering the upper and lower portions of the inlet 10, and the Opening and closing device 60 for opening the lower cover 50 and the casing 70 is provided on the outside of the inlet cylinder 10 at a predetermined distance from the outer peripheral surface of the inlet cylinder 10.

Each configuration described above is as follows.

The retracting tube 10, the top of the casing 70 is formed on the top rim of the stepped jaw (10b) is formed, the stepped jaw (10b) is an extended end of the opening and closing device 60 to be described later Passing holes 10b-1 to pass through are formed to correspond. In addition, a pair of hinge holes 10c to which the lower cover 50 is hinged may be formed at a lower end thereof, and a plurality of inlet holes 10a through which contaminated water may be introduced are formed at the side thereof. Inlet hole (10a) is preferably any shape if contaminated water is drawn in but configured so that the internal filter material 20 is not discharged. In addition, a pair of protruding ends 10d having a passing hole 10d-1 through which the extended end of the opening and closing device 60 passes is formed at the lower end of the drawing tube 10.

 The filter material 20 is provided inside the drawing tube 10, and any contaminants (eg, sediment-particulate matter, oil or oils, soluble metals, organic matter, phosphorus, soluble, total nitrogen). , Soluble ammonia) may be provided in different kinds depending on whether it has the purpose of purifying. The filter material may be a particulate activated carbon (GAC), filtration sand (Sand), ferrite (Perite), zeolite, Pleated Fabric (wrinkled fabric fabric) and the like. On the other hand, such a filter material 20 may lose its function by repetition of use, in which case it is preferable to replace the existing filter material with a new filter material.

The discharge pipe 30 has a cylindrical shape and extends inwardly downward from the center of the upper cover 40 to the inlet 10 and discharge holes 30a for purifying the purified water by the filter material 20. ) Are formed in large numbers. The discharge pipe 30 does not have to be configured to be fixed from the upper cover 40 to extend downward so as to discharge the purified water to the upper side as in the present embodiment, and the discharge pipe 30 'is drawn in as shown in FIG. It may be provided in the form which can discharge purified water to the side of 10 '. In addition, likewise, the discharge hole (30a) is preferably any shape as long as it is configured to discharge the purified water but not to discharge the internal filter material (20).

 The upper cover 40 covers the upper portion of the inlet 10, the outlet 40a corresponding to the discharge pipe 30 is formed in the center, the filter material inlet for introducing the filter material 20 ( 40b) is formed, and through holes 40c through which the extended end of the opening and closing device 60 passes. In addition, the inlet stopper 40d for opening and closing the filter refilling opening 40b, and the handle 40e for lifting the upper cover 40 is further configured. Here, the inlet stopper 40d is also preferably screwed to the filter refilling inlet 40b like a normal cap. Of course, the inlet stopper 40d for opening and closing the filter re-insertion opening 40b may not be an essential component depending on the application. If the purified water is discharged to the upper side of the upper cover 40, as shown in Figures 1 and 2, but the inlet stopper (40d) need to be configured as necessary, but as shown in Figure 3 If it is configured to be discharged to the side of 10 ') it is not necessary to be configured as a stopper.

The lower cover 50 covers the lower portion of the inlet 10, the left and right cover pieces (50a, 50b) and the left and right cover pieces (50a, 50b) folded in a downward direction with respect to the diameter of the lower direction It includes a hinge shaft (50c) and the like hinged to a pair of hinge spheres (10c) formed on the lower end of the inlet 10 while connecting to fold. In addition, a plurality of inlets 50d through which the contaminated water can be introduced are formed in the lower cover 50. On the other hand, depending on the application may be configured so that the lower cover is hinged to the casing.

The opening and closing device 60, the handle 60a is provided on the upper left and right sides of the upper cover 40 to open and close the lower cover 50, and the upper portion while extending downward from the handle 60a After passing through the through hole (40c) of the cover 40 and the through holes (10b-1, 10d-1) of the inlet 10 and the extension end (60b) extending to the lower cover 50, and the extension It comprises an opening and closing end (60c) for opening or locking the outer end of the left and right cover pieces (50a, 50b) while rotating in conjunction with the forward or reverse rotation of the extension (60b) at the end of the end (60b) do. Here, the opening and closing end 60c is formed to be substantially perpendicular to the extension end 60b at the end of the extension end 60b.

The casing 70 is provided in a cylindrical shape on the outer side of the drawing tube 10. If gravel is mixed with contaminated water due to flooding or the like, the gravel may be damaged by hitting an introduction tube or the like, thereby protecting the configuration of the casing 70 by the casing 70. Therefore, if there is no concern about the damage of such a drawer (10), the casing may be an unnecessary configuration. Therefore, in the present invention, the casing 70 that is configured together with the introduction barrel is not an essential element.

The contaminated water purification filter 100 may be used to purify contaminated water containing contaminants generated from a point source, or may be used to purify contaminated water containing various kinds of contaminants generated from a nonpoint source. When used for nonpoint source, it can be preferably applied as one component which is constituted in the purification device for separating and removing various kinds of contaminants.

The operation of the pollutant purification filter 100 configured as described above will be described with reference to FIG. As shown by the arrow of FIG. 4, the external contaminated water passes through the inlet port 50d formed in the lower cover 50, and then a part is directly introduced into the inlet box 10, and a part of the inlet box 10 is provided. Through the inlet hole (10a) formed on the side of the inlet flows into the inlet 10. The contaminated water introduced into the inlet 10 is purified while passing through the filter material 20, and the purified water is purified through the discharge hole 30a of the discharge pipe 30 and the discharge hole 40a of the upper cover 40. Through the outside.

On the other hand, if the function of the filter material is lost due to long use, the manager must maintain the purification function by replacing the existing filter material with a new filter material.

5 and 6 are diagrams illustrating a state of use in accordance with the replacement work of the filter material 20.

The manager rotates the handle 60a as shown in FIG. 5 so that the opening and closing end 60c faces the outside of the drawer. When the opening / closing end 60c faces the outside of the inlet 10, both cover pieces 50a and 50b of the lower cover 50 are bent downward by the weight of the filter material 20 therein. The filter material 20 is poured out.

6, when the inside of the filter material 20 is poured out, the manager closes both the cover pieces (50a, 50b) upward again, then turn the opening and closing end (60c) both cover pieces (50a, 50b) After supporting the new filter material is introduced through the filter input hole (40b). When the new filter material is properly introduced, the filter refilling inlet 40b is closed by the inlet plug 40d.

Of course, depending on the type of filter material 20 may be inappropriate to be introduced through the filter material inlet 40b, in this case, the filter material may be added after lifting the upper cover 40.

<First application example of the first embodiment>

Fig. 7 is an exploded perspective view of the pollution correction filter according to the first application example of the first embodiment.

As shown in FIG. 7, the pollutant purification filter 700 according to the present application includes a discharge hole 40-7a through which the purified water is discharged to the upper cover 40-7 instead of configuring a separate discharge pipe. It is forming.

Second Application Example of First Embodiment

Fig. 8 is an exploded perspective view of the pollution correction filter 800 according to the second application of the first embodiment.

As shown in Fig. 8, the pollution purification filter 800 according to the present application includes only the casing 70-8 without forming a drawing tube as in the first embodiment. In this case, the contaminated water flowing into the casing 70-8 is introduced into the filter material only through the inlet 50-8d of the lower cover 50-8.

<Third Application Example of First Embodiment>

Fig. 9 is an exploded perspective view of the pollution correction filter 900 according to the third application of the first embodiment.

As shown in FIG. 9, the pollutant purification filter 900 according to the present application includes only the casing 70-9 without constructing an inlet container as in the first embodiment, and also a separate discharge pipe. Instead of forming a plurality of discharge holes (40-9a) in the upper cover (40-9).

<Fourth application example of the first embodiment>

Fig. 10 is an exploded perspective view of the pollution correction filter 1000 according to the fourth application of the first embodiment.

As shown in FIG. 10, the pollutant purification filter 1000 according to the present application forms an inlet 10-10 which is opened only to the lower side instead of the upper cover, and contaminated water may be introduced into the side surface thereof. A plurality of inlet holes 10-10a are formed, and the upper surface is formed with a filter material inlet 10-10b through which filter material can be introduced. Of course, the injection plug 10-10c for opening and closing the filter refilling opening 10-10b is configured together.

Since the filter material may vary in kind depending on the purpose, a filter material having a large particle size may be used, or a filter material having a small particle size may be used. If the purpose of using a filter material having a small particle size is to insert the filter material through the filter material inlet, the upper cover is not configured to be detachable as in the first embodiment, and only the lower opening is opened as in this application. 10) may be preferable.

Second Embodiment

11 is an exploded perspective view of a pollution correction filter 200 according to a second embodiment of the present invention.

Referring to FIG. 11, the pollutant purification filter 200 according to the present embodiment includes a cylindrical inlet 201 having a drawing hole for introducing contaminated water, a filter material (not shown) for purifying contaminants from contaminated water, A discharge pipe 203 through which the purified water filtered by the filter material is discharged, an upper cover 204 and a lower cover 205 covering the upper and lower portions of the inlet 201, and the lower cover 205 for opening and closing the The opening and closing device 206 and the casing 207 provided on the outer side of the drawing tube 201 at predetermined intervals from the outer circumferential surface of the drawing tube 201 are comprised.

Here, the lower cover 205 is configured to include the left and right cover pieces (205a, 205b) and the like folded in a downward direction about the diameter as in the first embodiment, the opening and closing device 206, the lower cover ( The handle 206a is provided on the upper left and right sides of the upper cover 204 to open and close the 205, and the wheel 206b for forward or reverse rotation according to the manipulation of the handle, and the wheel 206b. The side is wound or unwound and the other side is configured to include a wire rod 206c or the like connected to and fixed to the outer ends of the cover pieces 205a and 205b. Wherein the oleb 206b is rotatably supported by an ole support end 204a which protrudes upward from the upper cover 204 and rotatably supports the ole 206b.

12 and 13 are diagrams illustrating the use state of the filter material during the replacement operation.

The manager rotates the handle 206a as shown in FIG. 12 to allow the wire rod 206c to be released from the bobbin 206b. When the wire rod 206c is released from the scoop 206b, the inner cover member pours out while both cover pieces 205a and 205b of the lower cover 205 are turned down by the weight of the inner filter member.

When the internal filter material is poured out, as shown in FIG. 13, the manager rotates the handle 206a again so that the wire rod 206c is wound on the bobbin 206b and moves both cover pieces 2065a and 205b upward. After closing the lower part of the drawing-out cylinder 201, a new filter material is thrown in through the filter material inlet 204b. When the new filter material is properly introduced, the filter refilling inlet 204b is closed with the inlet plug 204c.

On the other hand, the above-described embodiments and applications are only examples of the embodiments of the present invention, and modifications in which the respective configurations of the described embodiments and applications are organically combined with each other may be within the basic technical scope of the present invention. As the invention may be practiced, the invention should not be construed as limited to the examples described above. In other words, the present invention should be construed as having a technical spirit that includes the contents described in the claims to be described later and the equivalent ranges of such contents.

According to the pollutant purification filter according to the present invention has the following effects.

First, it is easy to replace the filter at the end of its life.

Second, different filter materials can be effectively applied to the removal of various contaminants.

Third, if only the filter material having the same shape and selectively applying it can be applied to the removal of various contaminants, mass production of the product is possible, and thus the product can be produced and consumed at low cost.

Claims (13)

An introduction barrel formed with at least one inlet hole through which contaminated water can be introduced; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the drawing tube; A lower cover provided to cover the lower portion of the inlet and open and close; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. An introduction barrel formed with at least one inlet hole through which contaminated water can be introduced; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed, and an upper cover covering an upper portion of the drawing tube; A lower cover provided to cover the lower portion of the inlet and open and close; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. Cylindrical casing; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. Cylindrical casing; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged, and an upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. The method according to any one of claims 1 to 4, And the upper cover has at least one filter material inlet formed therein so as to allow the filter material to be introduced into the inlet tube. At least one inlet hole through which contaminated water may be introduced is formed, and an upper surface thereof is formed with at least one filter inlet through which filter material can be introduced, and a lower inlet tube; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; A lower cover provided to cover the lower portion of the inlet and open and close; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. At least one inlet hole through which contaminated water may be introduced is formed in the side surface, and at least one filter inlet through which the filter material may be introduced, and at least one outlet hole through which the purified water purified by the filter material is discharged. An inlet drawer with an open bottom; A filter material provided inside the inlet to purify contaminants in the contaminated water introduced through the inlet of the inlet; A lower cover provided to cover the lower portion of the inlet and open and close; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. The method according to any one of claims 1, 2, 6 or 7, The lower cover is a pollution correction filter, characterized in that at least one inlet is formed so that the contaminated water can be introduced into the inlet. The method of claim 8, And a casing provided at an outer side of the drawing tube at a predetermined interval from an outer circumferential surface of the drawing tube. At least one filter input hole through which the filter material may be injected is formed on the upper surface, and the casing is open at the bottom; A filter material provided inside the casing; At least one discharge hole through which the purified water purified by the filter material is discharged and formed to extend from the inside of the inlet to the outside; An upper cover covering an upper portion of the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And An opening and closing device for opening and closing the lower cover; Pollutant purification filter comprising a. At least one filter inlet through which the filter material may be introduced into the upper surface and at least one discharge hole through which the purified water purified by the filter material is discharged, and a lower casing; A filter material provided inside the casing; A lower cover that covers at least one lower portion of the casing and has at least one inlet through which contaminated water can be drawn in, and is provided to be opened and closed; And An opening and closing device for opening the lower cover; Pollutant purification filter comprising a. The method according to any one of claims 1, 2, 3, 4, 6, 7, 10, or 11, The lower cover, Including the left and right cover pieces folded downward about the diameter, The opening and closing device, Handles provided at left and right sides of the upper cover to open and close the lower cover; An extension end extending downward from the handle and configured to rotate forward or reverse according to manipulation of the handle; And An opening and closing end that opens or locks an outer end of the left and right cover pieces while rotating in conjunction with a forward rotation or a reverse rotation of the extension end at an end of the extension end; Pollutant purification filter comprising a. The method according to any one of claims 1, 2, 3, 4, 6, 7, 10, or 11, The lower cover, Including the left and right cover pieces folded downward about the diameter, The opening and closing device, Handles provided at left and right sides of the upper cover to open and close the lower cover; An erlet which rotates forward or reverse according to the manipulation of the handle; And A wire rod one side of which is wound or unwound on the bobbin and the other side is fixedly connected to an outer end of the cover piece to open or lock the cover piece according to the manipulation of the handle; Pollutant purification filter comprising a.

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