KR20170024624A

KR20170024624A - Fat removing filter and apparatus for purifying waste water using said filter

Info

Publication number: KR20170024624A
Application number: KR1020150119385A
Authority: KR
Inventors: 함윤경; 이상현; 정형채; 김주환; 조상래
Original assignee: 삼영기술주식회사; 신우산업주식회사
Priority date: 2015-08-25
Filing date: 2015-08-25
Publication date: 2017-03-08

Abstract

The present invention relates to a maintenance elimination filter and a sewage purifying apparatus using the same. This is a wastewater purification apparatus (10) comprising an inlet pipe (11) into which wastewater flows; A plurality of filter cartridges (31, 33, 35, 37, 39, 40) having an upper end lower than the inflow pipe (11) A holding and removing tank (17) for removing the holding component through the formed maintenance and removal filter (30); And a discharge tank (19) for discharging the wastewater that has passed through the holding and removing tank (17) to a discharge pipe (21) positioned lower than the upper end of the holding and removing filter (30).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retentive filter,

The present invention relates to a sewage purifier, and more particularly, to a sewage purifier that is structurally simple, cost-effective, and easy to maintain while maintaining a constant flow rate of wastewater containing a large amount of a maintenance component, And a sewage purifying apparatus using the same.

Generally, sewage discharged from restaurants, dry cleaners, vehicle garages, car washes, gas stations, and industrial complexes contains a large amount of FOG (Fat, Oil and Grease) components. Such a FOG is adsorbed on a filter medium that filters the wastewater in a sewage purifier, thereby deteriorating the performance of the filter medium. In addition, when FOG is discharged to a sewer pipe as it is, various problems such as environmental pollution and various odors are generated. Therefore, there was a demand that the FOG in the wastewater should be properly treated.

In order to meet such a demand, there has been known a cooling method in which, for example, a wastewater is cooled to float the surface of the FOG so as to be easily removed. However, such a cooling method has a problem in that it is not economically efficient because energy for cooling the sewage must be input.

As another example, there is known a floating method in which FOG is floated to the surface of a wastewater using a specific gravity difference, and then the FOG floating on the surface is sucked and removed. However, such a floatation method requires ultrasonic waves to keep the mixed oil component in the wastewater separated from the water, to maintain the stagnation state of the wastewater, or to continuously remove the adsorbed oil in the suction pipe sucking the floated FOG There is a disadvantage in that the device of the present invention is not required.

Korean Patent No. 10-0870568 (Registered on November 19, 2008)

Korean Registered Patent No. 10-0308485 (registered on Aug. 29, 2001)

Korean Registered Patent No. 10-1462726 (Registered on November 11, 2014)

Korean Registered Patent No. 10-1463659 (Registered on November 13, 2014)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for manufacturing a wastewater treatment apparatus, particularly a wastewater treatment apparatus, The present invention aims to provide a new maintenance elimination filter which is structurally simple, which is cost-effective and easy to maintain, and a sewage purifying apparatus using the same.

Specifically, the present invention includes a water-repellent coating non-woven-type sustained-adsorption filter material prepared by coating the surface of a ceramic fiber with a water-repellent component and pressing the same, By configuring the filter cartridge, it is possible to form a flow path in which the wastewater vertically moves up and down alternately using a plurality of filter cartridges, so that while the wastewater flows in the flow path formed by the plurality of filter cartridges, Removing filter that can be removed from the housing.

Further, according to the present invention, there is provided a flow path formed so that wastewater can vertically move up and down alternately using a plurality of filter cartridges while discharging wastewater through an upstream inlet pipe and then discharging the wastewater to a downstream outlet pipe having a step The present invention aims to provide a new sewage purging device of a non-operating power-free method by discharging and discharging a holding component while passing through a sewer pipe.

Further, according to the present invention, while the wastewater flows into the downstream discharge pipe having a step with the inflow pipe after flowing the wastewater through the upstream inflow pipe, the sludge is firstly removed from the continuously flowing wastewater, The present invention aims at providing a new sewage purging device of a non-operating power-free type by removing waste water components while passing through a flow path formed so that wastewater can vertically move vertically using the sewer pipe.

This object is achieved by the maintenance-eliminating filter provided according to the present invention and the sewage purifying apparatus using the same.

According to an aspect of the present invention, there is provided a holding and removing filter comprising a plurality of filter cartridges, each of the filter cartridges having a water filter portion and an opening portion into which a holding absorbent material for absorbing a holding component in the wastewater is inserted, The filter cartridges are arranged in parallel with each other at regular intervals so that the order filter portions and the openings are alternately interchanged.

The holding absorbent material of the water filter portion may include a nonwoven fabric member in which ceramic fibers coated with a water repellent agent are compressed, and a filter net provided outside the nonwoven fabric member.

According to another aspect of the present invention, there is provided an apparatus for purifying wastewater using a maintenance elimination filter, comprising: an inlet pipe through which wastewater flows; A holding and removing tank that removes the maintenance component through a maintenance elimination filter formed of a plurality of filter cartridges each having an upper end lower than the inflow pipe and configured to allow the wastewater to vertically move up and down alternately; And a discharge tank for discharging the wastewater which has passed through the holding and removing tank to a discharge pipe positioned lower than the upper end of the holding and removing filter.

And a rectifying tank for removing the solid sludge from the wastewater flowing into the inflow pipe between the inflow pipe and the holding and removing tank.

A rectifying wall may be provided between the rectifying tank and the holding and removing tank in which a plurality of rectifying holes through which waste water passes are disposed at a position higher than the installation position of the discharge pipe.

And a sedimentation tank for additionally removing sludge from the wastewater flowing through the rectifying holes of the rectifying wall, between the rectifying wall and the holding and removing tank.

And a flow wall lower than an upper end of the retention / removal filter provided in the retention / removal tank, between the sedimentation tank and the retention / removal tank.

Wherein each of the plurality of filter cartridges of the holding and removing filter has a water filter portion and an opening portion in which a holding absorbent material for absorbing a holding component in the wastewater is inserted into a plate-shaped case, The plurality of filter cartridges may be arranged in parallel with a certain interval so that the order filter portion and the openings are alternated with each other.

And a flow wall lower than an upper end of the oil removing filter provided in the oil removing tank, between the oil removing tank and the oil circulating tank.

According to the present invention, it is possible to provide a new maintenance elimination filter which is structurally simple, low in cost, and easy to maintain, by constructing the wastewater containing a large amount of the maintenance component at a constant rate, It is possible to provide a used sewage purifying apparatus.

Specifically, according to the present invention, for example, by constituting a filter cartridge including an order filter portion that does not allow wastewater to pass through and an opening portion through which wastewater passes, a plurality of filter cartridges are used to form a flow path in which wastewater vertically moves up and down alternately So that the wastewater can be adsorbed and removed from the wastewater by the maintenance water absorbing material in the form of a water-repellent coated nonwoven fabric contained in the water filter section while flowing in the flow path formed by the plurality of filter cartridges .

Further, according to the present invention, there is provided a flow path formed so that wastewater can vertically move up and down alternately using a plurality of filter cartridges while discharging wastewater through an upstream inlet pipe and then discharging the wastewater to a downstream outlet pipe having a step It is possible to provide a new wastewater purification apparatus of the non-operating power-free system by discharging and discharging the holding component while passing.

Further, according to the present invention, while the wastewater flows into the downstream discharge pipe having a step with the inflow pipe after flowing the wastewater through the upstream inflow pipe, the sludge is firstly removed from the continuously flowing wastewater, The present invention can provide a remarkable effect such as providing a new sewage purging device of a non-operating power-free type by discharging and discharging the maintenance component while passing through the flow path formed so that the wastewater vertically moves up and down alternately.

1 is a schematic plan view showing a structure of a sewage purifying apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic side sectional view showing an AA sectional structure of the sewage purifying apparatus of FIG. 1; FIG.
3 is a schematic side cross-sectional view showing the retention filter of the waste water purification apparatus shown in the side sectional view of FIG. 2 in more detail;
FIG. 4A is a detailed view showing the structure of the filter cartridge constituting the maintenance elimination filter of FIG. 3; FIG.
FIG. 4B is an exploded view showing in detail the structure of a filter cartridge constituting the maintenance elimination filter of FIG. 3; FIG.
Fig. 4c is a detailed view of another aspect of the filter cartridge constituting the maintenance elimination filter of Fig. 3; Fig.
5 is a view schematically showing a BB cross-section of the waste water purification apparatus of FIG. 1;
6 is a view schematically showing a CC section of the waste water purification apparatus of FIG. 1;
FIG. 7 is a schematic view showing a DD section of the sewage purifying apparatus of FIG. 1; FIG.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following description and drawings are only for illustrative purposes and are not intended to limit the scope of the invention. In other words, it is to be understood that the embodiments described below can be modified in various ways when they are implemented in the field, and if they are within the technical idea of the present invention, they should belong to the present invention. To be readily understood by those skilled in the art of marine technology.

FIG. 1 is a schematic plan view showing a structure of a sewage purifying apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic side sectional view showing an A-A cross-sectional structure of the sewage purifying apparatus of FIG.

1 and 2, a sewage purifier 10 according to an embodiment of the present invention is illustrated. In the illustrated example, the waste water purification apparatus 10 has an inlet pipe 11 on one side of a generally rectangular parallelepiped case 20 and a discharge pipe 21 on the other side, and a rectifying tank 13, A rectifying wall 14, a settling tank 15, a flow wall 16, a holding and removing tank 17, a flow wall 18, and a discharge tank 19. Manholes 131, 171, and 191 can be provided at the upper end of the case 20 for user's maintenance. Ladders 133 and 193 may be provided on the inner wall of the case 20.

The wastewater purification apparatus 10 is installed such that the height of the inflow pipe 11 and the height of the discharge pipe 21 have a step difference in order to obtain an effect that the wastewater flows naturally through the step in the case 20, By this step difference, wastewater is naturally flowed by gravity, and the sludge and / or oil is removed and purified.

The inlet pipe (11) is a passage through which the wastewater flows into the case (20) of the wastewater purification apparatus (10) from the outside. The inlet pipe 11 is installed at one side of the case 20 at a relatively high position relative to the bottom surface of the case 20. [

The rectifying tank 13 is a part for removing the solid sludge from the wastewater flowing in from the inflow pipe 11. The rectifying tank 13 may be configured to discharge the outside of the rectifying tank 13 after changing the direction or speed of the wastewater flowing through the inlet pipe 11. [ Accordingly, the flow rate and flow direction of the wastewater are changed in the rectifying tank 13, so that the solid content contained in the wastewater can be more easily accumulated at the bottom of the rectifying tank 13 to form the sludge 135. The sludge 135 can be removed periodically by the maintenance personnel working through the manhole 131.

The rectifying wall 14 is a wall for preventing sewage in the rectifying tank 13 from stagnating at a predetermined height or higher, and discharging it at a speed lower than the inflow speed at a height above a certain height. 5, a blocking wall 141 is formed at a lower portion of the rectifying wall 14 so that water does not pass therethrough, and a plurality of small holes, that is, a rectifying hole 143, . In the illustrated example, the rectifying hole 143 is formed as a circular hole, but the rectifying hole 143 is sufficient to perform the function of passing the sewage, and therefore the shape of the rectifying hole 143 need not be limited to the circular shape shown. Therefore, the rectifying hole 143 can be a rectangular, slit-like, or other irregular shape.

2, it is preferable that the position at which the rectifying hole 143 is formed is higher than the installation position of the discharge tube 21. [ This is to allow the wastewater discharged through the rectifying hole 143 to flow toward the discharge pipe 21 naturally by having a step with the discharge pipe 21.

The settling tank 15 is a portion for additionally removing sludge from the wastewater flowing through the rectifying hole 143 of the rectifying wall 14. [

The first flow wall 16 is a boundary wall for discharging the wastewater from which the sludge has been removed in the settling tank 15 to the holding and removing tank 17. 6, the flow wall 16 has a lower height than the upper end of the retention and removal filter 175 provided in the retention removal bath 17, and the wastewater flows from the upper end face of the first flow wall 16 160 to the holding and removing tank 17.

The holding and removing tank 17 is a portion for adsorbing and removing the holding component in the wastewater. For this purpose, the holding and removing tank 17 includes a holding and removing filter 175.

The maintenance removing filter 175 is formed by arranging a plurality of filter cartridges in parallel with a predetermined interval by a corresponding guide member 173 fixed to the inner wall of the case 20. [ A flow path 177 in which the wastewater is vertically alternately moved upward and downward by the plurality of filter cartridges and the openings formed in the respective filter cartridges can be formed. The height or upper end of the oil removing filter 175 is preferably lower than the position of the inflow pipe 11 and higher than the position of the discharge pipe 21.

In the illustrated example, the retention and removal filter 175 includes a vertically disposed retention filter 175, which is vertically installed with a corresponding guide member 173 fixed to the inner wall of the case 20 The guide member 173 may be inclined with respect to the inner wall of the case 20 so that the maintenance and removal filter 175 installed therein may be inclined so that the plurality of filter cartridges are arranged in parallel at regular intervals You may.

The detailed structure of the maintenance elimination filter 175 is further described below with reference to Fig.

The second flow wall 18 is a boundary wall through which the wastewater that has passed through the holding and removing tank 17 flows toward the discharge pipe 21. 7, the second flow wall 18 has a lower height than the upper end of the retention removal filter 175 provided in the retention removal tank 17, and the wastewater flows from the upper end of the second flow wall 18 And flow to the discharge tank 19 over the surface 180.

The discharge tank 19 is a buffering space for discharging the wastewater flowing over the second flow wall 18 to the discharge pipe 21.

Unlike the purification technique for removing the maintenance component using the conventional specific gravity, the wastewater purification device according to an embodiment of the present invention as described above installs a maintenance elimination filter in the flowing wastewater, adsorbs the maintenance component, can do.

Furthermore, the maintenance / removal filter of the wastewater purification apparatus is configured in the form of a cartridge that is easy to mount and detach, thereby providing an advantage that maintenance is easy.

Furthermore, in the sewage purifying apparatus of the present invention, the flow of the sewage water is constructed so as to be able to continue the natural flow by using the step difference, thereby providing the advantage that the additional energy such as driving the pump or inputting the electric energy is not required, .

FIG. 3 is a schematic side cross-sectional view showing the retention filter 175 of the waste water purification apparatus shown in the side sectional view of FIG. 2 in more detail.

In the illustrated example, the maintenance elimination filter 30 corresponds to the maintenance elimination filter 175 of Fig. 2, and a plurality of filter cartridges 31, 33, 35, 37, 39 are arranged in parallel.

Although the illustrated example illustrates a retention filter including five filter cartridges, the number of filter cartridges constituting one retention filter in the present invention is not limited and may be reduced to a smaller or greater number Can be configured. Further, in the illustrated example, the filter cartridges are arranged in one row in parallel, but the present invention is not limited thereto, and the filter cartridges may be arranged in two rows or three rows in parallel depending on the scale.

Each of the filter cartridges 31, 33, 35, 37 and 39 has a water filter portion 311, 331, 351, 371 and 391 in which a holding absorbent material for absorbing a holding component in the wastewater is inserted, 333, 353, 373, 393).

The filter cartridges 31, 33, 35, 37 and 39 are connected to the order filter portions 311, 331, 351 and 371 (see FIG. 3) so that the wastewater flows vertically alternately up and down 391 and 41 and the openings 313, 333, 353, 373 and 393 are arranged in parallel at regular intervals so as to be alternated with each other.

The wastewater flowing over the first flow wall 16 flows down along the water filter portion 311 of the first filter cartridge 31 and passes through the opening portion 313 of the first filter cartridge 31 at the lower end do. The wastewater then rises up along the path between the first filter cartridge 31 and the second filter cartridge 33 and passes through the opening 333 of the upper second filter cartridge 33. The wastewater then falls down along the path between the second filter cartridge 33 and the third filter cartridge 35 and then advances through the opening 353 of the third filter cartridge 35 at the lower end. In the same manner, the wastewater flows through the fourth filter cartridge 37 and the fifth filter cartridge 39, finally flows over the upper end of the second flow wall 18, and can flow out to the discharge tank.

The surface of the water filter portions 311, 331, 351, 371, and 391 of the filter cartridges 31, 33, 35, 37, and 39 is brought into contact with the surfaces of the filter cartridges 31, . The order filter portions 311, 331, 351, 371, and 391 include a holding absorbent material that adsorbs only the holding component in the wastewater. Accordingly, the wastewater filter sections 311, 331, 351, 371, and 391 are separated from the wastewater by the wastewater for a sufficiently long time and / or a sufficiently large area So that the holding component in the wastewater can be sufficiently adsorbed.

Fig. 4A is a detailed view showing the structure of the filter cartridge constituting the maintenance elimination filter of Fig. 3, Fig. 4B is an exploded view showing the construction of the filter cartridge constituting the maintenance elimination filter of Fig. 3 in more detail, Fig. 2 is a view showing in detail another aspect of the filter cartridge constituting the maintenance elimination filter of Fig.

Referring to Figs. 4A-4C, a filter cartridge 40 corresponding to each filter cartridge 31, 33, 35, 37, 39 constituting the retention filter 30 of Fig. 3 is shown. The filter cartridge 40 has a water filter portion 41 and an opening portion 43. The order filter portion 41 includes a holding absorbent material for adsorbing the oil, and the opening portion 43 is a hole through which water passes.

As shown in the illustrated example, the filter cartridge 40 may be configured to include a filter case 401, a nonwoven member 403, a filter net 405, and a fixed frame 407.

The filter case 401 is a frame member having a structure that defines the order filter portion 41 and the opening portion 43.

The nonwoven fabric member 403 is a filter member for adsorbing the retained component in the form of a nonwoven fabric obtained by compressing ceramic fibers coated with a water repellent agent on the surface. BACKGROUND OF THE INVENTION [0002] Retention absorbent fibers, which repell water and adsorb only a retaining component by coating a water repellent or a hydrophobic material on ceramic fibers such as carbon nanofibers, are well known in the art. In the present invention, the water repellent coated ceramic The fibers can be used without limitation.

The filter net 405 is a mesh, net, or netting member having a plurality of openings to allow the wastewater to contact the nonwoven fabric member 403 while protecting the outer surface of the nonwoven fabric member 403.

The fixed frame 407 is a member that can be attached to the filter case 401 by bolts or the like so that the nonwoven fabric member 403 and the filter net 405 are fixed in the filter case 401.

In the illustrated example, although the filter cartridge 40 is illustrated as a quadrilateral, it is not necessary that the filter cartridge of the present invention be limited to a quadrangular plate, and that circular, elliptical or other irregular forms are also possible Those skilled in the art will readily understand.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course, fall within the scope of the present invention.

Claims

As the holding and removing filter 30,
A plurality of filter cartridges (31, 33, 35, 37, 39, 40)
Each of the filter cartridges has a water filter portion 311, 331, 351, 371, 391, 41 and openings 313, 333, 353, 373, 393, 43 in which a holding absorbent material for adsorbing a holding component in the wastewater is inserted. Respectively,
The plurality of filter cartridges 31, 33, 35, 37, 39, 40 are connected to the order filter portions 311, 331, 351, 371, 391, 41 and The openings 313, 333, 353, 373, 393, and 43 are arranged in parallel with each other at regular intervals
Wherein the filter is a filter.

The method according to claim 1,
The maintenance adsorbent of the order filter portion (41)
And a filter net (405) provided on the outer side of the nonwoven fabric member (403), wherein the filter net (405) comprises a nonwoven fabric member (403) in which ceramic fibers coated with a water repellent agent are compressed.

As the waste water purification apparatus (10)
An inlet pipe (11) through which wastewater flows;
A plurality of filter cartridges (31, 33, 35, 37, 39, 40) having an upper end lower than the inflow pipe (11) Removing filter (17) for removing the oil retaining component through the oil removing filter (30) forming the filter (177); And
A discharge tank 19 for discharging the wastewater that has passed through the holding and removing tank 17 to the discharge pipe 21 positioned lower than the upper ends of the holding and removing filters 175 and 30
And a control unit for controlling the waste water purifier.

The method of claim 3,
Between the inlet pipe (11) and the holding and removing tank (17)
And a rectifying tank (13) for removing solid sludge from the wastewater flowing into the inflow pipe (11).

5. The method of claim 4,
Between the rectifying tank (13) and the holding and removing tank (17)
Wherein a rectifying wall (14) having a plurality of rectifying holes (143) through which waste water passes is provided at a position higher than an installation position of the discharge pipe (21).

6. The method of claim 5,
Between the rectifying wall (14) and the holding and removing tank (17)
Further comprising a settling tank (15) for additionally removing sludge from the wastewater flowing through the rectifying hole (143) of the rectifying wall (14).

The method according to claim 6,
Between the settling tank (15) and the holding and removing tank (17)
Further comprising a flow wall (16) lower than an upper end of the holding and removing filter (30) provided in the holding and removing tank (17).

The method of claim 3,
Each of the plurality of filter cartridges (31, 33, 35, 37, 39, 40) of the maintenance and removal filter (30)
(311, 331, 351, 371, 391, 41) and openings (313, 333, 353, 373, 393, 43) into which a holding absorbent material for adsorbing the holding component in the wastewater is inserted,
The plurality of filter cartridges 31, 33, 35, 37, 39, 40 are connected to the order filter portions 311, 331, 351, 371, 391, 41 and The openings 313, 333, 353, 373, 393, and 43 are arranged in parallel with each other at regular intervals
Wherein the waste water purification device comprises:

9. The method of claim 8,
The maintenance adsorbent of the order filter portion (41)
And a filter net (405) provided on the outer side of the nonwoven fabric member (403), wherein the filter fabric (405) comprises a nonwoven fabric member (403) in which ceramic fibers coated with a water repellent agent are compressed.

The method of claim 3,
Between the holding and removing tank 17 and the discharge tank 19,
Further comprising a flow wall (18) lower than an upper end of the retention and removal filter (30) provided in the holding and removing tank (17).