WO2012044106A2

WO2012044106A2 - Media for water purification and variable filter using same

Info

Publication number: WO2012044106A2
Application number: PCT/KR2011/007223
Authority: WO
Inventors: 조현철
Original assignee: 주식회사 조은환경
Priority date: 2010-09-30
Filing date: 2011-09-30
Publication date: 2012-04-05
Also published as: WO2012044106A3; KR20120033496A

Abstract

The present invention provides a media for water purification, in which a filtering process and a back washing process are repeatedly performed or the media is transferred to perform the back washing process and then perform the filtering process again, and a variable filter using same. The media (10) for water purification according to the present invention includes a warp (12) and a weft (14). The weft (14) is spaced from the warp (12) by a predetermined length (L) in a length direction of the warp (12) and coupled to the warp (12). When the back washing process is performed, the warp (12) may be moved between the wefts (14). According to the present invention, since contaminants may be effectively separated from the media (10) when the back washing process is performed, stable filtering efficiency may be maintained for a long time through the effective back washing process. Also, the media may be automatically wound around a chamber (32) of a filter unit (30) to adjust a thickness of a media layer, thereby performing the filtering process. Also, since the back washing process is performed when a pore is closed, a filtered degree may be constantly maintained. Thus, when a quality of inflow water is changed, the media for water purification may effectively cope with water purification equipment having environments different from each other.

Description

Water treatment media and variable filtration device using the same

The present invention relates to a media for water treatment and a variable filtration apparatus using the same, and more particularly, in a filtration apparatus which performs the filtration process again after performing the backwashing process by repeatedly performing the filtration process and the backwashing process. The present invention relates to a medium for water treatment and a variable filtration device using the same, in which backwashing is effectively performed so that the efficiency of the filtration process is stably maintained.

Among various environmental problems caused by the development of industrial society and the expansion of urban areas, water pollution problem is emerging as one of the important factors that can threaten the future of mankind. In order to solve this problem, contaminant emission standards are being strengthened, and biological or physicochemical advanced treatment facilities are being expanded. In particular, various types of filtration devices are proposed to improve the quality of the final effluent in advanced waste treatment facilities. It is used.

On the other hand, the present inventor has proposed a technique for improving the problem of the filtration device according to the prior art through the Republic of Korea Patent Publication No. 10-0937111 "variable filtration device".

1 is a view for explaining a variable filtration device proposed by the inventor through the prior application.

Referring to FIG. 1, the variable filtration apparatus 100 proposed by the present inventors through a prior application includes a filtration tank 110, a filter cloth 120, a filtration unit 130, a winding unit 140, and a (secondary) washing unit 150. It is provided with. At this time, the filtration unit 130 is provided with a chamber 132 is formed in the cavities of the filtration tank 110 is formed around the filtration hole so that the internal filtration channel communicates with the outside, by the external driving force The chamber 132 is rotatable in a predetermined direction. In addition, the winding unit 140 has a roller disposed to correspond to the chamber 132 of the filtration unit 130 in the cavity of the filtration tank 110, and the filtration tank (such that the roller can be rotated in a predetermined direction by an external driving force) It is installed in 110).

Through such a configuration, the variable filtration apparatus 100 adjusts the number of times of winding of the filter cloth 120 wound around the chamber 132 of the filtration unit 130 to change the thickness of the filtrate, thereby allowing the inside of the cavity of the filtration tank 110. The inflow water received is filtered by the filter cloth 120, and the filtered water is discharged to the outside through the discharge shaft 134 extending to the outside. In addition, the variable filtration apparatus 100 as described above undergoes a filtration process, and when the filtration efficiency is lowered by contaminants blocking the filtration pores, the washing unit 150 is wound while the filter cloth 120 is wound in the winding unit 140 direction. By using to wash the filter cloth 120, the pores of the filter cloth 120 is blocked by the contaminants to solve the problem that the filtration efficiency is lowered.

As described above, the present invention proposes a variable filtration device 100 by controlling the number of windings of the filter cloth 120, so that the degree of filtration can be controlled by changing the thickness of the filtrate, unlike in the prior art. It is characterized in that it is possible to easily cope with the fluctuations, and to increase the filtration time while improving the degree of filtration.

However, although the technique according to the present application proposed by the present inventors has a feature of controlling the degree of filtration, it has been found that there is a difficulty in maintaining stable filtration efficiency even in long-term operation through effective backwashing. That is, as shown in Figure 2, the filter cloth 120 that can be easily applied to the variable filtering device according to such a prior application has a horizontal fiber yarn 122 (weft) and a vertical fiber yarn 124 in the characteristics of the structure; Since it has a structure formed by weaving a slope), it is difficult to maintain a high cleaning effect. For example, the washing unit 150 is usually made by spraying water or air (hereinafter, referred to as 'washing water') at a high pressure, and the washing water is filtered by the weaving structure of the weft 122 and the warp 124. When sprayed into the contaminant is pressed to the filter cloth 120 will cause the phenomenon of blocking the voids.

Therefore, the present invention has been proposed to solve the problems of the prior art, and the backwashing is effectively performed in the filtration apparatus which performs the filtration process again after performing the backwashing process by repeatedly performing the filtration process and the backwashing process or transferring the filter medium. It is an object of the present invention to provide a new type of media for water treatment, which can be achieved to ensure that the efficiency of the filtration process is stably maintained.

In particular, the present invention further develops the technology proposed by the inventor through the Republic of Korea Patent Publication No. 10-0937111 "variable filtration apparatus" to enable the adjustment of the filtration thickness and the control of the filter pores and effective It is an object of the present invention to provide a variable filtration device using a new type of water treatment media that can maintain stable filtration efficiency even after long-term operation through backwashing.

According to a feature of the present invention for achieving the above object, the present invention, in the filter medium for water treatment for the filtration device to perform the filtration process again using the filter after washing the filter medium through a backwashing process, the longitudinal direction Weft yarn 12 is formed to a predetermined length and; A warp yarn (14) disposed across the weft yarns (12), the weft yarns (12) being interlocked and fixed; The warp yarns 14 are spaced apart by a predetermined distance L in the longitudinal direction of the weft yarns 12 and are coupled to the weft yarns 12, so that the weft yarns 12 between the warp yarns 14 during the backwashing process. Make it flowable.

In such a water treatment media, the inclined 14 may be arranged in a row in a predetermined number of fibers.

According to another feature of the present invention for achieving the above object, the present invention includes a filtration tank 22 to form a cavity 21 in which the influent is accommodated; It has a chamber 32 is formed around the filtration hole 33 to allow the internal filtration channel 31 to communicate with the outside, the chamber 32 is installed in the cavity 21 of the filtration tank 22 A filtration unit (30) installed in the filtration tank (22) so that the chamber (32) is rotatable in a predetermined direction by an external driving force; In the cavity 21 of the said filtration tank 22, it has the roller 52 arrange | positioned so that it may correspond with the chamber 32 of the said filtration unit 30, and the said roller 52 rotates to a predetermined direction by the external drive force. A winding unit 50 installed in the filtration tank 22 so as to be possible; One end is coupled to the chamber 32 of the filtration unit 30, the other end is coupled to the roller 52 of the take-up unit 50, the chamber 32 in a state wound on the roller 52 to a predetermined length Media (10) wound and unrolled in the chamber (32) by the rotation of the roller and (52); It is installed between the chamber 32 of the filtration unit 30 and the roller 52 of the winding unit 50 so as to be close to the filter medium 10 so that the backwash water supplied from the outside is injected into the filter medium 10. Including a cleaning unit 70; The filter medium 10 has a weft yarn 12 formed in a predetermined length in the longitudinal direction, and a warp yarn 14 that is disposed across the weft yarns 12 and woven with the weft yarns 12 to be fixed. 14 is spaced apart by a predetermined distance L in the longitudinal direction of the weft yarn 12 is coupled to the weft yarn 12.

The variable filtration device using the water treatment medium according to the present invention forms an auxiliary cavity 21 ′ in communication with the cavity 21 of the filtration tank 22 to be installed on the upper portion of the filtration tank 22 to accommodate inflow water. Auxiliary filtration tank 22 'for increasing capacity; A sensor (80) installed in the auxiliary filtration tank (22 ') for measuring the level of influent water; The controller 90 may further include a controller 90 for controlling the winding and unwinding of the filter medium 10 by receiving the water level of the filtration tank 22 measured by the sensor 80.

According to the filter medium for water treatment according to the present invention, since the inclination 14 is installed at regular intervals, the quality of the filter medium 10 can be produced uniformly and at the same time to allow the flow of the weft yarn 12 during the backwashing process. Therefore, since the separation effect of the contaminants from the filter medium 10 can be further enhanced during the backwashing process, a stable filtration effect can be maintained for a long time through an effective backwashing process. In addition, the variable filtration device using the filter medium for water treatment according to the present invention automatically winds the filter medium (10) in the chamber 32 of the filtration unit 30 to adjust the thickness of the filter bed to proceed the filtration process, As the backwashing process proceeds according to the blockage, it is possible to effectively cope with the case where the inflow water quality fluctuates while maintaining the degree of filtration constant or in the water treatment facilities of different environments. In particular, since the number of turns of the filter medium 10 can be varied according to the capacity and the number of times of inflow water through the use of the auxiliary filtration tank 22 ', it provides an advantage of more convenient backwash control.

1 is a view for explaining a variable filtration device proposed by the inventor through the prior application;

2 is a view for explaining a problem of the filter cloth mainly applied to the variable filter device according to FIG.

3 and 4 are a perspective view and a plan view for explaining the media for water treatment according to the technical idea of the present invention;

5 is a view for explaining the backwashing action of the water treatment medium according to the present invention;

6 is a view for explaining a water treatment medium according to a preferred embodiment of the present invention;

7 and 8 are views for explaining a variable filtration device using a water treatment medium according to a preferred embodiment of the present invention;

9 is a view for explaining a variable filtration device using a media for water treatment according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 6 to 9, and like reference numerals refer to like elements in FIGS. 3 to 9. Meanwhile, the drawings and detailed descriptions of the constructions, the operations and the effects thereof, which are easily understood from related arts in the art, from the filtration apparatus proposed by the inventors in each application in each drawing are briefly or omitted, and parts related to the present invention are omitted. Shown in the center.

6 is a view for explaining the media for water treatment according to a preferred embodiment of the present invention.

Referring to Figure 6, the filter medium for water treatment 10 according to a preferred embodiment of the present invention is provided with a weft 12 and a warp 14 to wash through a backwashing process, to perform the filtration process using the same again Adaptable to filtration equipment.

The water treatment media 10 according to the present embodiment is composed of a weft yarn 12 and a warp yarn 12, the weft yarn 12 is formed to a predetermined length in the longitudinal direction, the warp yarn 14 is a weft yarn 12 It is disposed across and intertwined with the weft 12 is fixed. At this time, the warp yarns 14 are spaced apart by a predetermined distance L in the longitudinal direction of the weft yarns 12 and are coupled to the weft yarns 12 so that the weft yarns 12 may flow between the warp yarns 14 during the backwashing process. do.

In particular, in the present embodiment, the warp yarn 14 is arranged so that a predetermined number of fiber yarns are arranged in succession so that the weft yarns 12 are more stably fixed. Of course, the number of fiber yarns constituting such warp 14 is set to a limited number (preferably 1 to 5) so that the area is not as wide as possible. And, the interval (L) between the inclination 14 is about 1cm to 20cm to prevent the remaining of the contaminants generated by the interval is too short, and to prevent the wefts 12 generated by the interval is too long.

At this time, in the present embodiment, the fiber yarn used for the weft yarn 12 and the warp yarn 14 is a propeller yarn (aty yarn) having a capillary structure made of polypropylene (PP). The fiber yarn for 14 can be applied to various materials used in this field.

The filter medium for water treatment according to the preferred embodiment of the present invention is most preferably applied to the filtration device proposed by the inventor through the Republic of Korea Patent Publication No. 10-0937111 "variable filtration device". Can be.

7 and 8 are views for explaining a variable filtration device using a water treatment medium according to a preferred embodiment of the present invention.

7 and 8, the variable filtration device 20 using the media for water treatment according to the preferred embodiment of the present invention uses the media 10 described above, and the media in the chamber 32 for forming the filtered water. By controlling the number of windings (10), it is possible to control the filtration conditions (thickness).

The variable filtration device 20 according to the present embodiment is provided with a filter medium 10, a filtration tank 22, a filtration unit 30, a winding unit 50, a washing unit 70, and a filtration unit 30. By adjusting the media 10 wound around the chamber 32, the inflow water contained in the cavity 21 of the filtration tank 22 is filtered by the media 10 and flows into the filtration channel 31 of the chamber 32. Allow the filtered water to drain out.

More specifically, in the present embodiment, the filtration tank 22 forms a cavity 21 in which influent is accommodated. The filtration unit 30 has a chamber 32 in which a filtration hole 33 is formed so as to allow the internal filtration channel 31 to communicate with the outside. Such a filtration unit 30 is installed so that the chamber 32 is located in the cavity 21 of the filtration tank 22. And although not shown, the filtration unit 30 is coupled to the filtration tank 22 so that the chamber 32 can be rotated to a predetermined direction by the drive force of the actuator (motor) provided in the outer side of the filtration tank 22. That is, in the present embodiment, the rotating shaft 36 is installed in the filtration unit 30 so that the rotating shaft 36 is coupled to one side of the chamber 32 and extends to the outside of the filtration tank 22 so as to be outside the cavity 21. It may be configured to be connected to the actuator installed in the. Then, the discharge is coupled to the other side of the chamber 32 on the opposite side of the rotation shaft 36 and extends outside the filtration tank 22, and communicates with the filtration channel 31 of the chamber 32 to form a discharge passage of the filtration water. It has an axis 34. Of course, such a rotating shaft 36 and the discharge shaft 34 is configured to rotate the chamber 32 through a relatively simple structure, and to allow the filtered water to be discharged to the outside, which is applicable to other configurations known in the art. It could be.

Moreover, the winding unit 50 has the roller 52 arrange | positioned so that it may correspond with the chamber 32 of the filtration unit 30 in the cavity 21 of the filtration tank 22, and the roller 52 by an external drive force. Is installed in the filtration tank 22 to be rotatable in a predetermined direction. The winding unit 50 is coupled to one side of the roller 52 and extends to the outside of the filtration tank 22, so that the winding unit 50 has a rotation shaft 56 connected to an actuator provided outside the cavity 21.

On the other hand, the variable filtration device 20 according to a preferred embodiment of the present invention is provided with a washing unit 70 for backwashing the filter medium (10). The cleaning unit 70 is disposed between the chamber 32 of the filtration unit 30 and the roller 52 of the winding unit 50 so as to be close to the filter medium 10, and the backwash water supplied from the outside is filtered. (10) to be sprayed.

Referring to FIG. 9, the variable filtration device 20 using the water treatment medium according to the present embodiment is proposed to more actively backwash the filter medium 10 in the above-described embodiment, and the auxiliary filtration tank 22 ′ is provided. By using), the number of turns of the filter medium 10 can be varied according to the capacity and the number of influent, so that more convenient backwash control is possible.

More specifically, the variable filtration device 20 using the water treatment medium according to the present embodiment further includes an auxiliary filtration tank 22 ′, a sensor 80, and a controller 90. At this time, the auxiliary filtration tank 22 'forms an auxiliary cavity 21' which communicates with the cavity 21 of the filtration tank 22 and is installed on the upper part of the filtration tank 22 to increase the receiving capacity of the influent. Such auxiliary filtration tank 22 'is manufactured integrally with the above-described filtration tank 22, or in a state where the upper side of the filtration tank 22 is opened so that the auxiliary filtration tank 22' is coupled to the upper side of the filtration tank 22. The cavity 21 and the auxiliary cavity 21 'of the auxiliary filtration tank 22' may be configured to communicate with each other. In addition, the sensor 80 which is installed in the auxiliary filtration tank 22 ′ and measures the level of the inflow water may use a water level sensor that is variously used in this field. The sensor 80 generates a detection signal when the inflow reaches a predetermined level so that the controller 80 has the next control function. In addition, the sensor 80 detects not only the high water level of the influent but also the low water level so as to enable overall control flow. Of course, the present embodiment described the sensor 80 by focusing on controlling the inflow of the influent and counting the number of filtration, in practice, the variable filtration device 20 using the water treatment medium according to the present embodiment Sensors of the type will be installed.

On the other hand, the controller 90 receives the water level (finally refers to the water level of the auxiliary filtration tank 22 ') measured by the sensor 80 to control the winding and unwinding of the filter medium 10 To control the process. Of course, this controller 90 is applicable to a control unit for controlling the overall variable filtration device 20 using the water treatment medium.

Through the application of the controller 90 as described above, the variable filtration device 20 according to the present embodiment has a predetermined filtration capacity (one-time filtration volume 22 and the auxiliary filtration tank 22 predetermined to be detected by the sensor 80). Will be made up of the sum of the capacities (of course, the volume of the other elements installed therein will be excluded)}. Through this, the filtration process time and efficiency can be managed more effectively. In other words, if the filtration process is repeated, various foreign substances in the influent water will reduce the filtration efficiency by blocking the pores of the filter medium 10, according to the present embodiment, the filter medium as much as the number of times having a certain level of filtration efficiency in the chamber 32 ) Is wound around, while filtration work while releasing the media (10) wound in the chamber 32 of the filtration unit 30 according to the number of filtration according to a constant filtration capacity. Then, if the loosening of the filter medium (10) is made as much as possible, go through the backwashing process to be back to the initial state.

Accordingly, the variable filtration device 20 using the water treatment media according to the present embodiment may vary the number of turns of the media 10 according to the capacity and the number of times of inflow through the use of the auxiliary filtration tank 22 ′. Enable convenient backwash control.

As described above, the media for water treatment and the variable filtration apparatus using the same according to the preferred embodiment of the present invention have been shown in accordance with the above description and drawings, but this is only an example and is not limited to the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope.

3 and 4 are a perspective view and a plan view for explaining the media for water treatment according to the technical idea of the present invention.

3 and 4, the water treatment medium 10 according to the present invention is provided with a weft 12 and a warp (14). At this time, the filter medium for water treatment 10 according to the present invention is provided for a filtration apparatus for washing through a backwashing process, and then performing a filtration process using it again. That is, the filter medium for water treatment 10 according to the present invention can be usefully applied to any type of filtration apparatus configured to perform the filtration process again using the filter medium after washing the filter medium through backwashing. .

More specifically, the water treatment media 10 according to the present invention is composed of a weft yarn 12 and a warp yarn 12, the weft yarn 12 is formed in a length determined in the longitudinal direction, the warp yarn 14 is a weft yarn It is arrange | positioned across 12 and it is interlocked with the weft thread 12, and is fixed. At this time, the warp yarns 14 are spaced apart by a predetermined distance L in the longitudinal direction of the weft yarns 12 and are coupled to the weft yarns 12 so that the weft yarns 12 may flow between the warp yarns 14 during the backwashing process. Characterized in that. Here, the inclination 14 is to maintain the basic size and shape of the filter medium 10 with the action according to the present invention, to facilitate the manufacture, to provide convenience of transportation and storage, and to facilitate the installation. For example, when the filter medium 10 is made of only the weft 12, it is difficult to maintain a certain size (width) and shape, making it difficult to manufacture, transport and storage, and difficult to install in a flat form during installation.

As the material of the weft 12 and the warp 14 in the water treatment media 10 according to the present invention as described above may be applied to the fiber yarn of a variety of materials already applied as a filter medium in this field.

On the other hand, the longitudinal direction in the present invention refers to the direction of the weft yarn 12, such a longitudinal direction is a direction between both ends of the filter medium (10). That is, both ends of the filtration device 20 as in the preferred embodiment of the present invention of FIGS. 7 and 8 are fixed to the chamber 32 of the filtration unit 30 and the roller 52 of the winding unit 50, respectively. It is wound or unwound in the chamber 32 in the longitudinal direction.

5 is a view for explaining the backwashing action of the water treatment medium according to the present invention.

The media for water treatment 10 according to the present invention is characterized in that the inclination 14 with respect to the longitudinal direction of the entire media is installed at regular intervals to enable the movement of the weft yarn 12, unlike the conventional weaving structure. That is, as shown in Figure 5, the filter medium for water treatment 10 according to the present invention is the washing water sprayed through the nozzle 152 of the washing unit 150 backwashing flow of the weft 12 (as shown in Figure 5) Likewise, it becomes possible to flow in the direction perpendicular to the longitudinal direction}, so that the contaminants are effectively detached from the filter medium (10).

According to the filter medium for water treatment according to the present invention, since the inclination 14 is installed at regular intervals, the quality of the filter medium 10 can be produced uniformly and at the same time to allow the flow of the weft yarn 12 during the backwashing process. Therefore, since the separation effect of the contaminants from the filter medium 10 can be further enhanced during the backwashing process, a stable filtration effect can be maintained for a long time through an effective backwashing process. In addition, the variable filtration device using the filter medium for water treatment according to the present invention automatically winds the filter medium (10) in the chamber 32 of the filtration unit 30 to adjust the thickness of the filter bed to proceed the filtration process, As the backwashing process proceeds according to the blockage, it is possible to effectively cope with the case where the inflow water quality fluctuates while maintaining the degree of filtration constant or in the water treatment facilities of different environments.

Claims

In the filter medium for water treatment for the filtration apparatus for washing the filter medium through a backwashing process, and performing the filtration process again using the filter medium,

A weft yarn 12 formed in a length determined in the longitudinal direction;

A warp yarn (14) disposed across the weft yarns (12), the weft yarns (12) being interlocked and fixed;

The warp yarns 14 are spaced apart by a predetermined distance L in the longitudinal direction of the weft yarns 12 and are coupled to the weft yarns 12, so that the weft yarns 12 between the warp yarns 14 during the backwashing process. The media for water treatment, characterized in that to make the flow.
The method of claim 1,

The inclination (14) is a media for water treatment, characterized in that a predetermined number of fibers are arranged in succession at one location.
A filtration tank 22 forming a cavity 21 in which inflow water is received;

It has a chamber 32 is formed around the filtration hole 33 to allow the internal filtration channel 31 to communicate with the outside, the chamber 32 is installed in the cavity 21 of the filtration tank 22 A filtration unit (30) installed in the filtration tank (22) so that the chamber (32) is rotatable in a predetermined direction by an external driving force;

In the cavity 21 of the said filtration tank 22, it has the roller 52 arrange | positioned so that it may correspond with the chamber 32 of the said filtration unit 30, and the said roller 52 rotates to a predetermined direction by the external drive force. A winding unit 50 installed in the filtration tank 22 so as to be possible;

One end is coupled to the chamber 32 of the filtration unit 30, the other end is coupled to the roller 52 of the take-up unit 50, the chamber 32 in a state wound on the roller 52 to a predetermined length Media (10) wound and unrolled in the chamber (32) by the rotation of the roller and (52);

It is installed between the chamber 32 of the filtration unit 30 and the roller 52 of the winding unit 50 so as to be close to the filter medium 10 so that the backwash water supplied from the outside is injected into the filter medium 10. Including a cleaning unit 70;

The filter medium 10 is a weft yarn 12 formed in a predetermined length in the longitudinal direction,

It is disposed across the weft yarn 12 and has a warp yarn 14 which is interlocked with the weft yarn 12, the warp yarn 14 is spaced apart by a distance (L) determined in the longitudinal direction of the weft yarn 12. And arranged to be coupled to the weft yarn 12, the variable filtration device using the media for water treatment.
The method of claim 3, wherein

An auxiliary filtration tank 22 'which forms an auxiliary cavity 21' in communication with the cavity 21 of the filtration tank 22 and is installed on the upper part of the filtration tank 22 to increase the receiving capacity of the influent;

A sensor (80) installed in the auxiliary filtration tank (22 ') for measuring the level of influent water;

Variable filtration using the filter medium for water treatment, characterized in that it further comprises a controller 90 for receiving the water level of the filtration tank 22 measured from the sensor 80 to control the winding and unwinding of the filter medium (10) Device.