WO2014061884A1

WO2014061884A1 - Combined water treatment and filtering apparatus with simple backwashing

Info

Publication number: WO2014061884A1
Application number: PCT/KR2013/002986
Authority: WO
Inventors: 김억조
Original assignee: (주)영동엔지니어링
Priority date: 2012-10-19
Filing date: 2013-04-10
Publication date: 2014-04-24
Also published as: KR20140050430A; KR101470985B1

Abstract

The present invention relates to a combined water treatment and filtering apparatus with simple backwashing, and more particularly, to a combined water treatment and filtering apparatus with simple backwashing, comprising: an inner container in which a first filtering member for filtering out floating material from contaminated water is provided therein; and an external container provided to have a treated water storage space for temporarily storing treated water filtered on the outside of the inner container and having a second filtering member provided therein for filtering out dissolved matter from the contaminated water. Additionally, a first backwash means and a second backwash means are respectively provided to the inner underbody of the external container and the underbody of the inner container for backwashing the first filtering member and the second filtering member by pumping the treated water stored in the treated water storage space through the flow of compressed air respectively supplied from the outside thereby enabling the filtering out of all of the floating materials and the dissolved matter and the backwashing of the filtering members without a backwash pump and a backwash water tank such that filtering efficiency for the contaminated water is enhanced and the filtering members can be easily backwashed.

Description

Complex water treatment filtration system for easy backwashing

The present invention relates to a complex water treatment filtration device that is easy to backwash, and more particularly, an inner passage provided with a first filtration member for filtering suspended solids of contaminated water therein, and the treated water filtered from the inner cylinder outside the inner cylinder is temporarily suspended. The second filter member is installed to be provided with the storage water storage space to be stored, and the second filtration member for filtering the dissolved substances of the contaminated water is configured in the outer cylinder, and the compression is supplied from the outside to the inner lower portion of the outer cylinder as well as the inner cylinder. A first backwashing means and a second backwashing means are provided to pressurize the treated water stored in the treated water storage space through the flow of air to backwash the first and second filtration members, respectively. As well as filtration of both dissolved and dissolved substances, backwashing of the filtration member without backwash pump and backwash bath can improve the filtration efficiency for contaminated water and facilitate the filtration member. The present invention relates to a complex water treatment filtration apparatus which is easy to backwash.

In general, water treatment refers to a series of treatment operations for filtering and removing substances that are pollutants included in contaminated water, such as sewage and wastewater discharged from homes and factories.

The pollutant contained in the contaminated water can be largely classified into suspended solids and dissolved solids. Therefore, the water treatment filtration device for the water treatment operation for the contaminated water should have the ability to filter all suspended substances and dissolved substances as the pollutant.

However, the above-mentioned conventional water treatment filtration apparatus is mostly constituted by continuously arranging a plurality of filtration apparatuses that filter only suspended or dissolved substances.

Therefore, the conventional water treatment filtration device has to be configured to operate a plurality of filtration devices uniformly, so not only the structure is complicated but also occupy a lot of installation space, there are many problems in accordance with the space.

In addition, the conventional water treatment filtration device requires a separate backwash water tank and backwash pump to separately backwash the filtration member for filtering the suspended or dissolved substances in each filtration device, thereby making the structure more complicated and not easy to maintain. There is also a problem.

The present invention has been invented to solve the above problems, it is possible to simultaneously filter the suspended solids and dissolved substances contained in the contaminated water through one filtration device, separate the filtering member for filtering the suspended solids and dissolved substances It is an object of the present invention to provide a complex water treatment filtration device having a structure that can be easily backwashed without a backwash tank and a backwash pump.

In order to achieve the above object, the backwashing complex water treatment filtration apparatus according to the present invention is installed such that the contaminated water inlet pipe is exposed to the outside, and a first filtration member is installed therein to filter the suspended solids of the contaminated water. The lower portion is an open inner cylinder; Outside the inner cylinder is provided with a treated water reservoir space for temporarily storing the treated water filtered out suspended matter, a second filtration member for filtering the dissolved material of the treated water is installed therein, the outer cylinder is installed in the treatment water discharge pipe ; A first backwash water transport box installed to communicate with the inner cylinder and the outer cylinder at a lower portion of the inner cylinder, a first compressed air supply pipe installed to penetrate the outer cylinder at one side of the first backwash container, and an outer cylinder through the upper one side of the inner cylinder A first back washing means configured to backwash the treated water from the lower portion of the inner cylinder to the upper portion so as to backwash the first filtering member; And a second backwash water transport box provided at an inner lower side of the outer cylinder, a second compressed air supply pipe installed at one side of the second backwash water transport box, and a second backwash water discharge pipe installed at an upper side of the inner cylinder. And a second backwashing means for backwashing the treated water upward from the lower portion of the outer cylinder to backwash the second filtration member.

The first backwash water transport box and the second backwash water transport box are configured in a cylindrical shape having a predetermined height having a plurality of backwash water outlet holes and a backwash water inlet hole respectively formed on an upper surface and a bottom surface thereof, It is characterized in that the three backwash water pipes are formed in a cylindrical shape vertically penetrated.

An upper portion of the inner cylinder, an air discharge pipe through which the internal air of the inner cylinder is discharged, and a first air injection tube through which the external air is injected into the inner cylinder; A second air injection pipe is installed at an upper portion of the outer cylinder to inject external air into the outer cylinder; The upper one side of the inner cylinder, characterized in that the pressure gauge for measuring the internal pressure of the inner cylinder is installed to be exposed to the outside.

The first filtration member and the second filtration member are each configured in the form of a plurality of cartridges, the upper portion of the inner cylinder and the outer cylinder is configured to open and close, one side of the outer cylinder is installed to open and close the door, the contamination The water inlet pipe, the first compressed air supply pipe and the first backwash water discharge pipe are installed to be separated from the outer cylinder, and the first air injection pipe and the pressure gauge are installed to be separated from the outer cylinder. The filter member and the second filtration member can be replaced.

The first filtration member is provided with a predetermined space in the upper portion of the inner cylinder, it is configured in the form of shrinkage and expansion, during filtration by the flow rate and pressure of the contaminated water, and the air pressure of the first air injection pipe The suspended solids of the contaminated water in the contracted state is filtered and backwashed in the expanded state by the flow rate and pressure of the treated water.

In the present invention by the above configuration, the filter member for filtering the suspended solids and the dissolved material is respectively installed in the inner cylinder and the outer cylinder, respectively, and the contamination by removing the suspended substances and dissolved substances contained in the contaminated water at the same time There is an effect that can greatly increase the filtration efficiency for water.

In addition, the treated water temporarily stored in the treated water storage space is pumped in the reverse direction according to the inflow of the outside air to simultaneously backwash the filtration members installed in the inner and outer cylinders, thereby making it easier to backwash the filtration members. .

In addition, the filtering member is installed in the cartridge in the interior of the outer cylinder and the inner cylinder to be detachable and the outer cylinder and the inner cylinder is configured to be opened and closed from the outside more convenient for maintenance work such as replacing the filtering member or checking the outer and inner cylinder. It can work.

1 is an overall configuration diagram according to a preferred embodiment of the present invention.

Figure 2 is a block diagram for the inner cylinder according to a preferred embodiment of the present invention.

Figure 3 is a block diagram for the outer cylinder according to a preferred embodiment of the present invention.

4 and 5 is a block diagram of a first backwashing means according to a preferred embodiment of the present invention.

6 and 7 is a block diagram of a second backwashing means according to a preferred embodiment of the present invention.

8 is a process chart for a general water treatment filtration apparatus.

9 is a process flow chart according to a preferred embodiment of the present invention.

The complex water treatment filtration apparatus for easy backwashing according to the present invention is a filtration apparatus that can be used with water above an environmental standard by filtration treatment of contaminants contained in contaminated water in a physical manner.

In particular, the complex water treatment filtration apparatus for easy backwashing according to the present invention, not only the suspended substances contained in the contaminated water, but also dissolved substances such as organic and inorganic substances can be filtered by the first filtration member and the second filtration member. And, the first filtration member and the second filtration member can be backwashed without a separate backwash tank and backwash pump.

This feature is characterized in that the inner cylinder and the outer cylinder are respectively installed inside and outside with the treated water reservoir space therebetween, and the first filtration member for filtering the suspended solids and the second filtration for filtering the dissolved substances in the inner and outer cylinders, respectively. A first backwashing means for backwashing the treated water temporarily stored in the treated water storage space by the air forced to flow from the outside into the inner cylinder and the outer cylinder, respectively, and backwashing the first filtration member and the second filtration member; It is achieved by the structure in which the second backwashing means is installed.

Therefore, through the simple structure described above, the suspended solids and dissolved substances contained in the contaminated water can be effectively filtered through the first filtration member and the second filtration member, and attached to the first filtration member and the second filtration member. Suspended and dissolved substances can be simply backwashed through the first and second backwashing means.

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

1 is an overall configuration diagram according to a preferred embodiment of the present invention, Figure 2 is a configuration diagram for the inner cylinder according to a preferred embodiment of the present invention, Figure 3 is a configuration diagram for the outer cylinder according to a preferred embodiment of the present invention 4 and 5 are configuration diagrams of the first backwashing means according to the preferred embodiment of the present invention, and FIGS. 6 and 7 are configuration diagrams of the second backwashing means according to the preferred embodiment of the present invention. 8 is a process flow chart for a general water treatment filtration apparatus, Figure 9 is a process flow chart according to a preferred embodiment of the present invention.

The present invention is easy to backwash complex water treatment apparatus 100 according to a preferred embodiment, the inner cylinder 10, the outer cylinder 20, the first backwashing means 30, and the second large as shown in FIG. It consists of backwashing means 40.

First, the inner cylinder 10 serves to perform a primary filtration process for the contaminated water introduced from the outside, which is installed so that the contaminated water inflow pipe 11 is exposed to the outside as shown in FIG. 2. The first filtration member 12 is installed inside, and the lower portion is configured in an open cylindrical shape.

In other words, the inner cylinder 10 is first filtered through the first filtration member 12 for the suspended solids contained in the contaminated water introduced from the outside through the contaminated water inflow pipe 11 to the lower portion opened. To let it out.

At this time, the first filtration member 12 may be composed of a single media or a plurality of media having a variety of shapes and structures, consisting of a single or a plurality of media that can filter the suspended solids contained in the contaminated water in a physical manner. Most preferably.

In addition, the upper part of the inner cylinder 10 includes a first air injection in which outside air is injected into the interior of the inner cylinder 10 in order to quickly compress the first filtration member 12 after the backwashing process of the first filtration member 12. It is preferable that the pipe 14 is further installed, and the first air injection pipe 14 is provided with an opening / closing valve 14V for controlling the injection of external air.

Here, the first filtration member 12 is configured to be capable of contraction and expansion, and is preferably installed with a predetermined space at an upper portion of the inner cylinder 10. Therefore, during filtration, the suspended solids in the contaminated water are effectively filtered in the contracted state due to the flow rate and pressure of the contaminated water and the air pressure of the first air inlet pipe 14, and expanded during the backwashing. In this state, suspended solids in the contaminated water filtered back naturally.

In addition, the first filtration member 12 is preferably installed detachably in the form of a cartridge in the interior of the inner cylinder 10 to be replaced when the end of the service life, the contaminated water inlet pipe 11 inflow of contaminated water On / off valve 11V is provided.

At this time, the upper portion of the inner cylinder 10 is preferably further provided with an air discharge pipe 13 for discharging the internal air of the inner cylinder 10 to the outside so that the contaminated water smoothly flows into the inside through the contaminated water inlet pipe 11, The air discharge pipe 13 is provided with an opening / closing valve 13V for controlling the outflow of the internal air of the inner cylinder 10.

Next, the outer cylinder 20 serves to perform a secondary filtration treatment by introducing the treated water from which the suspended solids are removed through the first filtration member 12 of the inner cylinder 10 to the inside, which is illustrated in FIG. 3. As shown, it is preferable that the treatment water reservoir space 21 is installed outside the inner cylinder 10, and the second filtration member 22 is installed inside the treatment water discharge pipe 23.

That is, the outer cylinder 20 performs the second filtering member through the second filtration member 22 to filter the residual suspended solids and dissolved substances contained in the treated water temporarily stored in the treated water storage space 21, and the treated water discharge pipe. It is to be discharged to the outside through (23).

Here, the second filtration member 22 may be a single media or a plurality of media having various shapes and structures, and the media alone or plural media capable of filtering and treating suspended solids and dissolved substances in the treated water in a physical manner. It is preferable that it consists of.

In addition, the second filtration member 22 may be detachably installed in the form of a plurality of cartridges inside the outer cylinder 20 such that the second filtration member 22 may be replaced when the service life of the first filtration member 12 ends.

The treatment water discharge pipe 23 is provided with an on-off valve 23V to control the discharge of the treatment water. In addition, the lower portion of the outer cylinder 20 is preferably further provided with a residual water discharge pipe 27 for discharging the treated water remaining in the treated water storage space 21 to the outside, the residual water discharge pipe (27) An on-off valve 27V for intermitting the discharge of the treated water is provided.

Next, the first backwashing means 30 serves to backwash the suspended solids attached to the first filtration member 12 of the inner cylinder 10, as shown in FIGS. 1 and 2. On the upper side of the first compressed air supply pipe (31), the first compressed air supply pipe (32) installed on one side of the first backwash container (31) installed on the lower side of the inner cylinder (10), and the inner cylinder (10) It is preferable that the first backwash water discharge pipe 33 is provided.

That is, the externally compressed air is supplied to the first backwash container 31 through the first compressed air supply pipe 32 to temporarily store the treated water in the treated water storage space 21 of the outer cylinder 20. The first filtration member 12 is backwashed by backflowing from the lower portion of the inner cylinder 10 to the upper side for use as backwashing water.

Therefore, the treated water temporarily stored in the treated water storage space 21 of the outer cylinder 20 flows back from the lower portion of the inner cylinder 10 to the upper portion with a strong pressure by the inflow of compressed air, and acts as backwashing water, thereby filtering the first filtration member ( 12) after backwashing the suspended solids attached to the discharge through the first backwash water discharge pipe (33). Accordingly, the first filtration member 12 can be quickly and easily backwashed without a separate backwash pump or backwash tank.

The first compressed air supply pipe 32 is provided with an open / close valve 32V for intermitting supply of compressed air, and the first backwash water discharge pipe 33 has an open / close valve 33V for intermitting discharge of backwash water. Is installed.

At this time, the first backwash water transport box 31 has a plurality of backwash water outlet holes 31a and backwash water inlet holes 31b formed on the upper and lower surfaces thereof, respectively, so that the treated water flows back to a strong pressure as shown in FIG. 4. It may be configured in a cylindrical shape having a certain height.

In addition, the first backwash water transport box 31 may have a cylindrical shape in which a plurality of backwash water transport pipes 31d are vertically penetrated with a predetermined height so that the treated water flows back to a stronger pressure as shown in FIG. 5. have.

In addition, it is preferable that the second air injection pipe 24 is further installed on the upper portion of the outer cylinder 20, which allows external air to be injected into the outer cylinder 20, thereby preventing the vacuum of the outer cylinder 20 and processing water. In order to smoothly flow back the treated water in the water space 21, the second air injection pipe 24 is provided with an on-off valve (24V) for intermittent injection of external air.

Here, the upper one side of the inner cylinder 10 is preferably provided with a pressure gauge 25 to penetrate the outer cylinder 20, the pressure gauge 25 measures the internal pressure of the inner cylinder 10, the first back washing means 30 This is to make it work automatically.

That is, when a large amount of suspended solids is attached to the first filtration member 12, the pressure of the inner cylinder 10 is increased while the flow of the contaminated water is not smooth, and the pressure gauge 25 measures and detects the pressure change in real time. By automatically opening the first compressed air supply pipe 32, the first backwash water discharge pipe 33, and the second air injection pipe 24, the automatic operation of the first backwashing means 30 is possible.

Next, the second backwashing means 40 serves to backwash the suspended solids and dissolved substances attached to the second filtration member 22 of the outer cylinder 20, which is illustrated in FIGS. 1 and 3. As described above, the second backwash water transport box 41 installed at the lower portion of the outer cylinder 20, the second compressed air supply pipe 42 installed at one side of the second backwash water transport box 41, and the upper one side of the outer cylinder 20. It is preferred that the second backwash water discharge pipe 43 is installed in.

That is, the externally compressed air is supplied to the second backwash water transport box 41 through the second compressed air supply pipe 42 to temporarily store the treated water in the treated water storage space 21 of the outer cylinder 20. It is to backwash the second filtration member 22 by forcing it from the lower portion of the outer cylinder 20 to the upper side for use as backwashing water.

Therefore, the treated water temporarily stored in the treated water storage space 21 of the outer cylinder 20 is pressurized from the lower portion of the outer cylinder 20 to the upper portion by a strong pressure by the inflow of compressed air, and acts as backwashing water to form the second filtration member ( After the suspended solids and dissolved substances attached to the back 22 are backwashed, they are discharged to the outside through the second backwash water discharge pipe 43. Accordingly, the second filtration member 22 can be quickly and easily backwashed without a separate backwash pump or backwash tank.

The second compressed air supply pipe 42 is provided with an open / close valve 42V for intermitting supply of compressed air, and the second backwash water discharge pipe 43 has an open / close valve 43V for intercepting discharge of backwash water. Is installed.

In this case, as shown in FIG. 6, the second backwash water transport box 41 includes a plurality of backwash water outlet holes 41a and a backwash water inlet hole 41b on the upper and lower surfaces thereof, respectively, to allow the treated water to flow upward with a strong pressure. It may be configured in a cylindrical shape having a predetermined height formed.

In addition, the second backwash water transport box 41 is configured as a cylindrical shape in which a plurality of backwash water transport pipes 41d are vertically penetrated with a predetermined height so that the treated water is flowed upward with a stronger pressure as shown in FIG. 7. Can be.

Here, the first filtration member 12 and the second filtration member 22 are configured to be separated into a plurality of cartridge types, respectively, and the upper portion of the inner cylinder 10 is configured to be separated by a coupling means 10C. The upper portion of the outer cylinder 20 is also configured to be detachable by the coupling means 20C. On one side of the outer cylinder 20, the check door 26 is installed to open and close. The pressure gauge 25 is detachably installed by the coupling means 25C with the outer cylinder 20 as a boundary.

And the contaminated water inlet pipe 11 is installed detachably by the coupling means (11C) with the outer cylinder 20 as a boundary. The first compressed air supply pipe 32 is detachably installed by the coupling means 32C around the outer cylinder 20.

In addition, the first backwash water discharge pipe 33 is detachably installed by the coupling means 33C with the outer cylinder 20 as a boundary. The air discharge pipe 13 is detachably installed by the coupling means 13C with the outer cylinder 20 as a boundary. The first air injection pipe 14 is detachably installed by the coupling means 14C around the outer cylinder 20.

Hereinafter, the filtration process and the backwashing process for the complex water treatment filtration apparatus 100 for easy backwashing according to a preferred embodiment of the present invention will be described in detail.

First, the filtration process is a process for filtering the suspended substances and dissolved substances contained in the contaminated water, for this purpose, the contaminated water inflow pipe 11, the treated water discharge pipe 23 and the air discharge pipe 13 is opened, the first air Inlet pipe 14, second air injection pipe 24, residual water discharge pipe 27, first backwash water discharge pipe 33, second backwash water discharge pipe 43, first compressed air supply pipe 32, and first The two compressed air supply pipes 42 are closed.

Then, the contaminated water is introduced into the upper portion of the inner cylinder 10 through the contaminated water inflow pipe 11. The contaminated water passes through the first filtration member 12 of the outer cylinder 20 as it is during the free fall, while the suspended solids contained therein are first filtered and the outer cylinder 20 through the lower portion of the inner cylinder 10. The water is temporarily stored in the treated water storage space 21.

As described above, the treated water temporarily stored in the treated water storage space 21 flows from the lower portion of the outer cylinder 20 to the upper portion and passes through the second filtration member 22 of the outer cylinder 20 as it is. After the second filtration treatment is discharged to the outside through the treated water discharge pipe 23 of the outer cylinder (20).

Therefore, the filtration treatment process is continuously performed so that the contaminated water is discharged to the outside through the treated water discharge pipe 23 in the state of treated water from which suspended matter and dissolved substances are removed, thereby enabling use of water above the environmental standard value.

Next, the backwashing process is a process of backwashing the first filtration member 12 and the second filtration member 22 to which the suspended substances and dissolved substances contained in the contaminated water are attached. For this purpose, the contaminated water inflow pipe 11 and air The discharge pipe 13, the first air injection pipe 14, the treated water discharge pipe 23 and the residual water discharge pipe 27 are closed.

In order to backwash only the first filtration member 12, the first backwash water discharge pipe 33, the first compressed air supply pipe 32, and the second air injection pipe 24 are opened, and the second filtration member 22 is opened. When backwashing the bay, the second backwash water discharge pipe 43 and the second compressed air supply pipe 42 are opened, and when the first backwashing member 12 and the second filtration member 22 are to be backwashed at the same time, the first station The wash water discharge pipe 33, the first compressed air supply pipe 32, the second backwash water discharge pipe 43, and the second compressed air supply pipe 42 are opened.

In the above state, the compressed air is supplied at a predetermined pressure from the outside through the first compressed air supply pipe 32, the second compressed air supply pipe 42, or the first compressed air supply pipe 32 and the second compressed air supply pipe 42. do.

The compressed air is then provided with a first backwash box 31 or a second backwash box 41 or a first station installed under the inner cylinder 10 or the outer cylinder 20 or the inner cylinder 10 and the outer cylinder 20. After passing through the wash water transport box 31 and the second backwash water transport box 41 is introduced into the upper portion from the lower portion of the inner cylinder 10 or the outer cylinder 20 or the inner cylinder 10 and the outer cylinder 20.

At the same time, the treated water stored in the treated water storage space 21 of the outer cylinder 20 is formed at the lower portion of the inner cylinder 10 or the outer cylinder 20 or the inner cylinder 10 and the outer cylinder 20 together with the flow of the compressed air. The first filtration member 12 of the inner cylinder 10 or the second filtration member 22 of the outer cylinder 20 or the first filtration member 12 of the inner cylinder 10 and the second of the outer cylinder 20 while flowing back upward. After removing the suspended substances or dissolved substances or the suspended substances and dissolved substances attached to the filtration member 22, together with the suspended substances or dissolved substances or the suspended substances and dissolved substances, the first backwash water discharge pipe 33 or the second backwash water discharge pipe ( 43) or is discharged to the outside through the first backwash water discharge pipe 33 and the second backwash water discharge pipe 43.

Therefore, the first filtration member 12 and the second filtration member 22 by using the treated water temporarily stored in the treated water storage space 21 of the outer cylinder 20 as backwash water through a flow of compressed air supplied from the outside. The backwashing process can be carried out quickly and simply by backwashing the suspended solids and dissolved substances attached to them.

As shown in FIG. 9, unlike the conventional water treatment filtration apparatus having the treatment process of FIG. 8, the complex water treatment filtration apparatus according to the present invention as described above is self-first without a separate backwash tank and backwash pump. Not only backwashing of the filtering member and the second filtration member is possible, but also filtering the suspended solids and dissolved substances contained in the contaminated water at once, not only completely eliminating the space constraint, but also greatly increasing the filtration efficiency for the contaminated water.

The above embodiments are merely exemplary, and those having ordinary skill in the art may have other embodiments modified in various ways.

Therefore, the true technical protection scope of the present invention should include not only the above embodiment but also various other embodiments modified by the technical spirit of the invention described in the claims below.

The present invention relates to a complex water treatment filtration device that is easy to backwash, and more particularly, an inner passage provided with a first filtration member for filtering suspended solids of contaminated water therein, and the treated water filtered from the inner cylinder outside the inner cylinder is temporarily suspended. The second filter member is installed to be provided with the storage water storage space to be stored, and the second filtration member for filtering the dissolved substances of the contaminated water is configured in the outer cylinder, and the compression is supplied from the outside to the inner lower portion of the outer cylinder as well as the lower portion of the inner cylinder. A first backwashing means and a second backwashing means are provided to pressurize the treated water stored in the treated water storage space through the flow of air to backwash the first and second filtration members, respectively. As well as filtration of both dissolved and dissolved substances, backwashing of the filtration member without backwash pump and backwash bath can improve the filtration efficiency for contaminated water and facilitate the filtration member. It can be used in the field of backwashing complex water treatment filtration apparatus.

Claims

Contaminated water inlet pipe 11 is installed on the upper side to be exposed to the outside, the first filtration member 12 for filtering the suspended solids of the contaminated water is installed therein, the lower portion of the inner cylinder 10;

Outside the inner cylinder 10 is provided with a treated water storage space 21 to temporarily store the treated water in which the suspended solids are filtered, and a second filtration member 22 is installed therein to filter dissolved substances of the treated water. , The outer cylinder 20 in which the treated water discharge pipe 23 is installed;

The first back washing water transport box 31 and the first back washing water transport box 31 installed to communicate with the inner cylinder 10 and the outer cylinder 20 at the lower portion of the inner cylinder 10, the outer cylinder 20 The first compressed air supply pipe (32) installed to penetrate and the first backwash water discharge pipe (33) installed to penetrate the outer cylinder (20) on an upper side of the inner cylinder (10), the treated water to the inner cylinder (10) A first backwashing means (30) for backwashing the first filtration member (12) by flowing back from the bottom to the top; And

A second backwash water transport box 41 installed at an inner lower side of the outer cylinder 20, a second compressed air supply pipe 42 installed at one side of the second backwash water transport box 41, and the outer cylinder 20 A second backwashing means (40) configured to backwash the treated water upward from the lower portion of the outer cylinder (20), the backwashing means (40) being installed on one side of the upper backwashing means (40); Easy backwashing composite water treatment filtration device, characterized in that configured to include.
The method of claim 1,

The first backwash water transport box 31 and the second backwash water transport box 41 are:

It consists of a cylindrical shape having a predetermined height formed with a plurality of backwash water outlet holes 31a, 41a and backwash water inlet holes 31b, 41b on the upper and lower surfaces, respectively, or a plurality of backwash water pressure pipes having a predetermined height. An easy backwashing composite water treatment filtration device, characterized in that (31d) (41d) is formed in a cylindrical shape which is vertically penetrated.
The method of claim 1,

In the upper portion of the inner cylinder 10,

An air discharge pipe 13 through which the internal air of the inner cylinder 10 is discharged, and a first air injection pipe 14 through which external air is injected into the inner cylinder 10;

On the upper portion of the outer cylinder 20,

A second air inlet pipe 24 through which external air is injected into the outer cylinder 20 is installed;

On the upper one side of the inner cylinder 10,

Backwash easy composite water treatment filtration device, characterized in that the pressure gauge 25 for measuring the internal pressure of the inner cylinder 10 is installed to be exposed to the outside.
The method of claim 3,

The first filtration member 12 and the second filtration member 22 is composed of a plurality of cartridges,

The upper portion of the inner cylinder 10 and the outer cylinder 20 is configured to open and close,

On one side of the outer cylinder 20, the check door 26 is installed to open and close,

The contaminated water inlet pipe 11, the first compressed air supply pipe 32 and the first backwash water discharge pipe 33 are installed to be separated from the outer cylinder 20 as a boundary.

The first air injection pipe 14 and the pressure gauge 25 is installed to be separated from the outer cylinder 20 as a boundary,

The backwash easy composite water treatment filtration device, characterized in that configured to enable replacement of the first filtration member (12) and the second filtration member (22).
The method of claim 1,

The first filtration member 12,

Installed in the upper portion of the inner cylinder 10 with a predetermined space, it is configured in the form of shrinkage and expansion, during filtration shrinkage by the flow rate and pressure of the contaminated water, and the air pressure of the first air injection pipe (14) And backwashing the contaminated water in the contaminated water in the pre-set state and backwashing in the expanded state by the flow rate and pressure of the treated water.