KR101913152B1 - Solid-liquid separator and apparatus for producing liquid fertilizer including thereof - Google Patents

Abstract

A solid-liquid separator and an apparatus for producing the liquid containing the same are disclosed. The solid-liquid separator according to an embodiment of the present invention includes a first space communicating with a first moving hole through which a first state wastewater as a pre-filtering state is introduced by a partition wall having a communication hole, a first space communicating with the first space, A filter housing communicating with a second moving hole through which state wastewater is discharged and being divided into a second space in which the second state wastewater in which the solid component is filtered in the first space is accommodated, Wherein the second state wastewater, in which the first state wastewater in the form of a slurry passes through the filtration hole and in which the solid component is separated, is formed in the form of a porous tube having a plurality of filtration holes, 2 space and a second liquid waste filter for discharging the second state wastewater or the second state wastewater discharged to the outside of the filter housing through a liquid production process Taein the manure comprises a material injection pipe for the passage to move into the interior of the filter housing.

Description

TECHNICAL FIELD [0001] The present invention relates to a solid-liquid separator and a liquid-

The present invention relates to a solid-liquid separator and an apparatus for producing the same, and more particularly, to a solid-liquid separator capable of producing a liquid component from a liquid component filtered by a solid component in organic wastewater, and an apparatus for producing the liquid.

In general, organic wastewater such as livestock wastewater, manure, and food wastewater is stored in a collecting tank by a conveyance vehicle, and after a relatively large dirt or foreign matter is filtered out by a screen separation or a liquid centrifuge, the collected wastewater is transferred to a storage tank, (Hereinafter referred to as "pretreatment"), the precipitate is mixed with the sludge containing the solid suspension through a dehydration step, composted, and the supernatant of the pretreated sedimentation tank And is fermented in a reactor (reaction tank) for producing liquid through a flow rate adjusting tank to produce a liquid fertilizer (liquid fertilizer).

Here, in the process of separating the solid component from the sludge containing fine suspended solids, the organic wastewater in the form of sludge is passed through the porous filter. As the use time becomes longer, the solid component adheres to the filter, Lt; / RTI > If the performance of the filter deteriorates, the filter must be cleaned or replaced.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is as follows.

The present invention is to provide a solid-liquid separator and an apparatus for manufacturing the same, which can increase the period of washing or replacing the filter by utilizing liquid fertilizer in which organic wastewater or solid organic wastewater filtered by solid-liquid separation filter is fermented.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a solid-liquid separator including a filter housing, a solid-liquid separation filter, and a re-injection pipe.

The filter housing is divided into a first space communicating with a first moving hole through which the first state wastewater as a pre-filtering state is introduced by the partition wall having the communication hole, and a second space communicated with the first space after the second state wastewater And a second space in which the second state wastewater in which the solid component is filtered in the first space is communicated with the second moving hole.

The solid-liquid separation filter is disposed in the first space so as to communicate with the communication hole, and is formed into a porous tubular shape having a plurality of filtration holes. When the first state wastewater in the form of slurry passes through the filtration hole The second state wastewater from which the solid component is separated moves to the second space through the communication hole.

The re-injection pipe is a passage through which the second state wastewater discharged to the outside of the filter housing or the second state wastewater passes through the liquid production process, into the interior of the filter housing.

Further, the solid-liquid separator of the present embodiment may include a branch pipe for moving the second state wastewater in the second space to the reservoir or moving it to the re-injection pipe.

Meanwhile, the re-injection pipe injects the second state wastewater or the liquid mixture into the second space, and the second state wastewater or the liquid mixture flows into the solid-liquid separation filter through the communication hole and passes through the filtration hole So that the solid component sandwiched in the filtration hole or attached to the outside of the solid-liquid separation filter can be separated from the solid-liquid separation filter.

Alternatively, the re-injection pipe is in communication with the first space, and the second state wastewater injected into the first space or the liquid waste is adhered to the solid-liquid separation filter by forming a vortex in the filter housing The solid component can be separated from the solid-liquid separation filter.

Here, the re-injection pipe may be formed to inject the second state wastewater or the liquid ratio in an oblique direction.

Wherein the re-injection pipe is provided with a valve that is closed during the first wastewater flows through the first transfer hole or the second wastewater is discharged through the second transfer hole, And can be selectively opened only while the inflow of the state wastewater or the discharge of the second state wastewater is stopped.

On the other hand, an installation member for installing the solid-liquid separation filter on the partition wall is provided between the partition wall and the solid-liquid separation filter, and the lower end of the solid-liquid separation filter can be separated from the partition wall by the installation member .

Here, the diameter of the attachment member may be smaller than the diameter of the solid-liquid separation filter.

Alternatively, the solid-liquid separation filter may be installed such that an upper end thereof abuts against the partition wall and a lower end thereof is spaced apart from the filter housing.

Here, a support member may be provided between the lower end of the solid-liquid separation filter and the filter housing to separate the solid-liquid separation filter from the filter housing and support the solid-liquid separation filter.

In this case, a guide member having a curvature may be installed in the first space so that the first state wastewater flowing through the first moving hole may form a swirling flow.

Meanwhile, the liquid recovery apparatus according to an embodiment of the present invention includes a first reservoir, a first solid-liquid separator, a second reservoir, and a third reservoir.

In the first adjustment tank, organic wastewater in the form of slurry in which a solid component and a liquid component transported from a plurality of transport means are mixed is stored.

The first solid-liquid separator is the same as the solid-liquid separator described above, and separates organic wastewater introduced from the first storage tank into a solid component and treated water.

In the second reservoir, treated water filtered by the solid-liquid separator is stored.

In the third reservoir, a treated liquid stored in the second reservoir through the liquid production process is stored.

The re-injection pipe can re-inject the treated water in the second space back into the second space.

Alternatively, the re-injection pipe connects the second reservoir and the filter housing of the first solid-liquid separator so that the treated water stored in the second reservoir can be injected into the filter housing of the first solid-liquid separator.

Alternatively, the re-injection pipe may connect the third reservoir and the filter housing of the first solid-liquid separator to inject the liquid stored in the third reservoir into the filter housing of the first solid-liquid separator.

Meanwhile, a second solid-liquid separator is disposed between the second reservoir and the third reservoir to filter the liquid once again through the liquid production process, and the second solid-liquid separator may be constructed in the same manner as the solid- have.

In the second solid-liquid separator, the re-injection pipe may re-inject the liquid pot filtered in the second space back into the second space.

Alternatively, in the second solid-liquid separator, the re-injection pipe connects the filter housing of the third solid-liquid separator with the third reservoir, and the liquid filtrate stored in the third reservoir is introduced into the filter housing of the second solid- Lt; / RTI >

On the other hand, a plurality of the first solid-liquid separators may be connected in series.

The effects of the present invention will be described below.

The solid-liquid separator according to the embodiments of the present invention and the liquid-liquid production device including the liquid-liquid separator according to embodiments of the present invention can be used as a solid-liquid separation filter or a filter housing in which the liquid wastewater in which the organic wastewater or organic wastewater, By injecting and separating the solid component adhered to the solid-liquid separation filter, the period of washing or replacement of the filter can be increased.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

The foregoing summary, as well as the detailed description of the preferred embodiments of the present application set forth below, may be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown preferred embodiments in the figures. It should be understood, however, that this application is not limited to the precise arrangements and instrumentalities shown.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an example of a liquid making device of the present invention;
2 and 3 are views showing an example of the solid-liquid separator of the present invention;
4 is a view showing another example of the solid-liquid separator of the present invention;
5 is a view showing still another example of the solid-liquid separator of the present invention;
6 is a view showing an example in which the second treated water or the liquid is re-injected into the solid-liquid separator of the present invention;
7 is an enlarged view of the solid-liquid separation filter of FIG. 5;
8 is a view showing another example in which the second treated water or the liquid is re-injected into the solid-liquid separator of the present invention;
9 is an enlarged view of the solid-liquid separation filter of Fig. 7;
10 is an enlarged view of the solid-liquid separator of FIG. 1;
11 is a view showing another example of the liquid making device of the present invention; And
12 is a view showing still another example of the liquid production apparatus of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

In describing the embodiments of the present invention, it is to be noted that elements having the same function are denoted by the same names and numerals, but are substantially not identical to elements of the prior art.

Also, the terms used in the present application are used only to describe certain embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, an apparatus for manufacturing a slurry including a solid-liquid separator according to an embodiment of the present invention will be described with reference to the drawings.

1 is a view showing an example of an apparatus for producing a liquid fertilizer according to the present invention.

1, an apparatus for manufacturing an accessory 30 according to an embodiment of the present invention includes a first reservoir 100, a first solid-liquid separator 202, a second reservoir 300, a second solid- 204 and a third reservoir 400.

The first storage tank 100 is configured to collect organic wastewater 10 such as livestock wastewater, manure, food wastewater, etc. from a plurality of transportation means and collect the collected organic wastewater into a first solid-liquid separator 202 to be described later .

Generally, the first reservoir 100 is configured to temporarily store the organic waste water generated in a house or the like, and may have one large tank form.

The first solid-liquid separator 202 is configured to separate the organic wastewater 10 introduced from the first storage tank 100 into the solid component 12 and the treated water 20, Will be described later in detail.

The second storage tank 300 is connected to the second moving hole 218 of the first solid-liquid separator 202 and the second storage tank 300 is connected to the treatment water 20 filtered by the first solid-liquid separator 202, (See FIG. 1).

The third storage tank 400 stores the liquid 30 that is produced through the liquid production process of the treated water 20 stored in the second storage tank 300.

In addition, a liquid production module 500 may be provided between the second storage tank 300 and the third storage tank 400. The liquid production module 500 can convert the treated water 20 separated into liquid components into liquid 30 by adjusting the fermentation and concentration. The liquid 30 having undergone the fermentation and concentration control process may have a lower concentration than the treated water 20.

Although not shown in the drawing, for example, the liquid production module 500 may include a reaction tank in which the treatment water 20 is contained, a treatment water circulation unit that circulates the treatment water 20 contained in the reaction tank, An air supply unit for supplying oxygen or air to the circulating process water 20 and mixing them, a mixed flow unit for refining the oxygen or air particles dissolved in the process water 20 to promote fermentation, And a bubble removing unit for removing bubbles.

The second solid-liquid separator 204 may be disposed between the second storage tank 300 and the third storage tank 400, and more particularly, may be disposed between the liquid production module 500 and the third storage tank 400. have.

The second solid-liquid separator 204 is configured to filter the liquid 30 produced by the liquid production module 500 once again, that is, the liquid 30 having been filtered may be stored in the third storage tank 400 . The second solid-liquid separator 204 is constructed in the same manner as the first solid-liquid separator 202 described above, and will be described in detail later with the first solid-liquid separator 202.

Hereinafter, the solid-liquid separator 200 of the present embodiment will be described in more detail with reference to the drawings.

The first solid-liquid separator 202 and the second solid-liquid separator 204 in the apparatus for producing the liquid 30 of the present embodiment may be configured in the same manner. Therefore, hereinafter, the first solid-liquid separator 202 and the second solid-liquid separator 204 are collectively referred to as a solid-liquid separator 200.

2 and 3 are views showing an example of the solid-liquid separator of the present invention.

As shown in FIGS. 2 and 3, the solid-liquid separator 200 of the present embodiment filters the first wastewater, which is wastewater in a pre-filtration state, into a second wastewater that is a wastewater in a state of filtration with the solid component 12 And includes a filter housing 210, a solid-liquid separation filter 220, and a re-injection pipe 240 as shown in FIG.

The filter housing 210 is partitioned into a first space 212 and a second space 216 by a partition wall 230 having a communication hole 232 formed therein.

The first space 212 communicates with the first moving hole 214 through which the first state wastewater flows. The second space 216 communicates with the first space 212 and the second moving hole 218 through which the filtered second state wastewater is discharged so that the filtration of the solid component 12 in the first space 212 The second state wastewater that has been made remains.

A guide member 280 having a curvature may be installed in the first space 212 so that the first state wastewater flowing through the first movement hole 214 may form a swirling flow. In this embodiment, the guide member 280 may be a curved wall that is installed perpendicularly to the partition wall 230 as shown in the drawing.

The first state wastewater is introduced into the first space 212 by the guide member 280 to form a vortex in the first space 212 to separate the solid component 12 adhering to the solid-liquid separation filter 220 described later Can be advantageous.

However, the guide member 280 is not limited to that described above, and may be formed in any form as long as it induces the first-state wastewater to be introduced into the wastewater flow.

On the other hand, a plurality of solid-liquid separation filters 220 are arranged in the first space 212 so as to communicate with the communication holes 232. Although the solid-liquid separating filter 220 is shown as an example in the longitudinal direction, the installation direction of the solid-liquid separating filter 220 is not limited to that shown in the drawing, but may be provided in the horizontal direction or in the diagonal direction .

The solid-liquid separation filter 220 of this embodiment is formed into a porous tubular shape in which a plurality of filtration holes 222 are formed. Thus, as the slurry organic wastewater 10 passes through the filtration hole 222, the solid component 12 is filtered by the filtration hole 222, and only the treated water 20, which is a liquid component, And is discharged to the hole 218 (see FIGS. 7 and 9).

The solid-liquid separation filter 220 may include an auxiliary filter member 224 provided outside the solid-liquid separation filter 220. The auxiliary filter member 224 is wound around the solid-liquid separation filter 220 such as a thread or a cord and the filtration rate of the organic wastewater 10 can be improved by the auxiliary filter member 224 9).

In addition, since the solid component 12 is first attached to the outside of the auxiliary filter member 224 rather than the solid-liquid separation filter 220, only the auxiliary filter member 224 needs to be replaced without replacing the solid-liquid separation filter 220 It may be more economical than replacing the entire solid-liquid separation filter 220.

Various types of installation of the solid-liquid separation filter 220 will be described below with reference to Figs. 3 to 5. Fig.

3, the solid-liquid separation filter 220 may be installed so that the lower end of the solid-liquid separation filter 220 is in contact with the upper surface of the partition wall 230. That is, in this case, the first space 212 may be located above the second space 216.

4 is a view showing another example of the solid-liquid separator of the present invention.

4, the solid-liquid separation filter 220 is located above the partition wall 230, and the solid-liquid separation filter 220 is disposed between the partition wall 230 and the solid-liquid separation filter 220, A mounting member 250 may be separately provided. The lower end of the solid-liquid separation filter 220 may be separated from the partition wall 230 by the installation member 250.

In this case, the solid component 12 contained in the first state wastewater or the solid component 12 separated by the solid-liquid separation filter 220 sinks and accumulates in the space between the partition wall 230 and the solid-liquid separation filter 220 .

This makes it possible to prevent the filter hole 222 in the lower portion of the solid-liquid separation filter 220 from being clogged by the solidified solid component 12 and to prevent the solid-liquid separation filter 220 from being separated from the partition wall 230 It is possible to prevent the accumulated solid component 12 from flowing into the second space 216 through the filtration hole 222 even when separated.

Particularly, the diameter of the fitting member 250 is formed to be smaller than the diameter of the solid-liquid separation filter 220, so that the space in which the solid component 12 is filled can be widened.

5 is a view showing still another example of the solid-liquid separator of the present invention.

5, the solid-liquid separation filter 220 may be installed such that the upper end of the solid-liquid separation filter 220 abuts against the partition wall 230. That is, the first space 212 may be located below the second space 216, and the solid-liquid separation filter 220 may be suspended from the lower portion of the partition wall 230.

At this time, the lower end of the solid-liquid separation filter 220 can be separated from the filter housing 210 to secure a space in which the solid component 12 is accumulated. A support member 260 for separating the solid-liquid separation filter 220 from the filter housing 210 and supporting the solid-liquid separation filter 220 is provided between the lower end of the solid-liquid separation filter 220 and the filter housing 210 .

The first solid-liquid separator 202 may be advantageously implemented in the form shown in FIG. 5, and the second solid-liquid separator 204 may be advantageously implemented in the form shown in FIG. This is because the organic wastewater 10 as the first state wastewater in the first solid-liquid separator 202 has a relatively large amount of solid components (as compared with the liquid wastewater before filtration 30 as the first state wastewater to the second solid- 12).

Various configurations of the solid-liquid separation filter 220 have been described above.

The re-injection pipe 240 is connected to the filter housing 210 through the second state wastewater or the second state wastewater discharged from the filter housing 210, It becomes a passage for moving to the inside.

The re-injection pipe 240 is provided with a valve 242 which is closed during the first wastewater flows through the first moving hole 214 or the second state wastewater is discharged through the second moving hole 218 And can be selectively opened only while the inflow of the first state wastewater or the discharge of the second state wastewater is stopped.

Hereinafter, with reference to FIGS. 6 to 9, let us consider various cases in which the second state wastewater or the liquid 30 is re-injected through the re-injection pipe 240.

6 is a view showing an example in which the second treated water or liquid is re-injected into the solid-liquid separator of the present invention, and Fig. 7 is an enlarged view of the solid-liquid separation filter in Fig.

First, as shown in FIGS. 6 and 7, the re-injection pipe 240 can inject the waste water or the liquid 30 in the second state into the second space 216. The wastewater of the second state injected into the second space 216 by the injected pressure flows into the solid-liquid separation filter 220 through the communication hole 232, passes through the filtration hole 222, Liquid separating filter 220 while being separated from the solid-liquid separating filter 220 by moving to the side of the solid-

FIG. 8 is a view showing another example in which the second treated water or liquid is re-injected into the solid-liquid separator of the present invention, and FIG. 9 is an enlarged view of the solid-liquid separation filter of FIG.

Alternatively, as shown in FIGS. 8 and 9, the re-injection pipe 240 may communicate with the first space 212 to inject the wastewater or the liquid 30 in the second state into the first space 212 . That is, the second state wastewater or the liquid 30, which flows into the first space 212 through the re-injection pipe 240, may be introduced into the space between the solid-liquid separation filter 220 and the filter housing 210.

Therefore, a vortex is formed in the first space 212 by the second state wastewater or the liquid 30 injected into the first space 212, so that the solid component ( 12 can be separated from the solid-liquid separation filter 220.

Here, the re-injection pipe 240 may be connected so that the second state wastewater or the liquid 30 may flow in a direction perpendicular to the solid-liquid separation filter 220.

Alternatively, although not shown in the drawing, the re-injection pipe 240 may be connected to the first space 212 so that the second state wastewater or the liquid 30 is injected in the diagonal direction of the solid-liquid separation filter 220. The second state wastewater or the liquid 30 is injected in the diagonal direction so that the area of the second state wastewater or the liquid 30 in contact with the solid-liquid separation filter 220 is widened and the solid component 12 can be separated more effectively .

The second state wastewater or liquid mixture 30 having a lower concentration than the first state wastewater is re-injected into the solid-liquid separation filter 220 or outside the solid-liquid separation filter 220 to adhere to the solid-liquid separation filter 220 Separation of the solid component 12 is advantageous in that the period of washing and replacement of the filter can be increased.

In addition, in order to clean using water, the cleaning operation may be troublesome because the filter housing 210 must be opened in a state in which supply and movement of the first-state wastewater are all blocked. However, This situation can be reduced by re-injecting the two-state wastewater or the liquid 30.

Thus, for various forms of separating the solid component 12 adhered to the solid-liquid separation filter 220 by injecting the second state wastewater or the liquid 30 into the filter housing 210 through the re-injection pipe 240, I looked at it.

In this embodiment, the first solid-liquid separator 202 is configured to separate the organic wastewater 10 introduced from the first storage tank 100 into the solid component 12 and the treated water 20, And the second-state wastewater may be treated water 20. Although not shown in the figure, the first solid-liquid separator 202 may be arranged so that a plurality of first solid-liquid separators 202 are connected in series.

The second solid-liquid separator 204 is configured to filter the liquid 30 produced from the liquid production module 500 once again. In the second solid-liquid separator 204, the first state wastewater flows through the liquid 30 before filtration, And the second state wastewater can be the liquid pot 30 after filtration.

10 is an enlarged view of the solid-liquid separator of FIG.

10, the first solid-liquid separator 202 of the present embodiment moves the treated water 20 in the second space 216 to the second storage tank 300, or moves the re-injection pipe 240, (Not shown).

That is, the branch pipe 270 is connected to the re-injection pipe 240 so that the treated water 20 located in the second space 216 flows into the filter housing 210 without passing through the second storage tank 300 Can be injected.

11 is a view showing another example of the liquid making device of the present invention.

11, the re-injection pipe 240 connects the second reservoir 300 and the second space 216 so that the treated water 20 stored in the second reservoir 300 flows into the filter housing 210 ). ≪ / RTI >

That is, in the solid-liquid separation filter 220, the treated water 20 filtered by the solid component 12 is stored in the second storage tank 300, and the treated water 20 stored in the second storage tank 300 is again stored in the filter housing (Not shown).

12 is a view showing still another example of the liquid production apparatus of the present invention.

12, the re-injection pipe 240 connects the third reservoir 400 and the filter housing 210 to connect the liquid reservoir 30 stored in the third reservoir 400 to the filter housing 210, As shown in FIG.

As described above, since the liquid 30 has a lower concentration than the treated water 20, it can be most advantageous to separate the solid component 12 adhering to the solid-liquid separation filter 220.

In this case, although the organic wastewater 10 and the liquid 30 may be partially mixed in the first solid-liquid separator 202, since the liquid production module 500 performs the fermentation and concentration control process again, the quality of the liquid 30 And the concentration can be kept constant.

Although not shown in the drawing, the second solid-liquid separator 204 of the present embodiment may also be configured to move the liquid 30, which has been filtered in the second space 216, to the third storage tank 400, 240 to the branch pipe 270.

In other words, the branch pipe 270 is connected to the re-injection pipe 240 so that the filtrate 30, which is located in the second space 216, passes through the third reservoir 400 without passing through the filter housing 210 As shown in FIG.

Alternatively, the re-infusion pipe 240 connects the third reservoirs 400 and 300 to the second space 216 to connect the filtrate 30 stored in the third reservoirs 400 and 300 to the filter housing 210).

That is, the liquid pot 30 in which the solid component 12 is filtered by the solid-liquid separation filter 220 is stored in the third reservoirs 400 and 300 and the liquid stored in the third reservoirs 400 and 300 The number 20 can be injected back into the filter housing 210.

10, only the re-injection pipe 240 is shown connected to the second space 216. However, as described above, in each case, the re-injection pipe 240 is connected to the first space 212 ).

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

10: organic wastewater 12: solid component
20: treated water 30:
100: first storage tank 200: solid-liquid separator
210: filter housing 212: first space
214: first moving hole 216: second space
218: second moving hole 220: solid-liquid separation filter
222: Filtration hole 224: Ancillary filtration member
230: partition wall 232: communication hole
240: re-injection piping 242: valve
250: mounting member 260: supporting member
270: branch pipe 280: guide member
300: second storage tank 400: third storage tank
500: Liquid production module

Claims (19)

The first space communicating with the first moving hole through which the first state wastewater which has not been filtrated flows into the first space and the second moving hole through which the second state wastewater after filtration is discharged, And a second space in which the second state wastewater, in which the solid component is filtered in the first space, is accommodated;
The first state wastewater in the form of a slurry is passed through the filtration hole to separate the solid component from the first state wastewater, A solid-liquid separation filter in which the second-state wastewater flows into the second space through the communication hole; And
And a re-injection pipe through which the liquid waste having the form of the second state wastewater discharged from the filter housing or the second state wastewater passed through the liquid production process moves into the interior of the filter housing,
Wherein the re-injection pipe injects the second state wastewater or the liquid mixture into the second space so that the second state wastewater or the liquid mixture flows into the solid-liquid separation filter through the communication hole, passes through the filtration hole, Liquid separation filter which separates from the solid-liquid separation filter a solid component that is sandwiched by the filtration hole and adhered to the outside of the solid-liquid separation filter while moving toward the filter housing. The method according to claim 1,
And a branch pipe for moving the second state wastewater in the second space to the reservoir or to the re-injection pipe. delete The method according to claim 1,
The re-injection pipe communicates with the first space, and a vortex is formed in the filter housing by the second state wastewater or the liquid that is injected into the first space, thereby forming a solid component Is separated from the solid-liquid separation filter. 5. The method of claim 4,
The re-
And the second state wastewater or the liquid ratio is injected in an oblique direction. The method according to claim 1,
Wherein the re-injection pipe is provided with a valve, the valve is closed while the first state wastewater flows through the first moving hole or the second state wastewater is discharged through the second moving hole, 1 state wastewater or the second state wastewater is discontinued. The method according to claim 1,
Liquid separation filter is provided between the partition wall and the solid-liquid separation filter, and a lower end of the solid-liquid separation filter is separated from the partition wall by the installation member. 8. The method of claim 7,
Wherein the diameter of the attachment member is smaller than the diameter of the solid-liquid separation filter. The method according to claim 1,
Wherein the solid-liquid separation filter is installed such that an upper end thereof abuts against the partition wall and a lower end thereof is spaced apart from the filter housing. 10. The method of claim 9,
And a support member for separating the solid-liquid separation filter from the filter housing and supporting the solid-liquid separation filter is provided between the lower end of the solid-liquid separation filter and the filter housing. The method according to claim 1,
In the first space,
Wherein a guide member having a curvature is provided so that the first state wastewater flowing through the first moving hole can form a swirling flow. A first storage tank for storing organic wastewater in the form of slurry in which a solid component and a liquid component transported from a plurality of transportation means are mixed;
A first solid-liquid separator according to any one of claims 1, 2, and 4 to 11 for separating organic wastewater introduced from the first storage tank into a solid component and treated water;
A second storage tank for storing the treated water filtered in the first solid-liquid separator; And
And a third reservoir for storing the liquid produced through the liquid production process of the treated water stored in the second reservoir,
Wherein the re-injection pipe connects the third reservoir and the filter housing of the first solid-liquid separator to inject the liquid stored in the third reservoir into the filter housing of the first solid-liquid separator. 13. The method of claim 12,
And the re-injection pipe re-injects the treated water in the second space back into the second space. 13. The method of claim 12,
Wherein the re-infusion pipe connects the second reservoir and the filter housing of the first solid-liquid separator such that the treated water stored in the second reservoir is injected into the filter housing of the first solid-liquid separator. delete 13. The method of claim 12,
A second solid-liquid separator is disposed between the second reservoir and the third reservoir for once filtering the liquid bypassed through the liquid production process, and the second solid-liquid separator is disposed between the second reservoir and the third reservoir, Device. 17. The method of claim 16,
Wherein the re-injection pipe re-injects the liquid mixture filtered in the second space back into the second space. 17. The method of claim 16,
Wherein the re-injection pipe connects the filter housing of the third solid-liquid separator to the third reservoir, and the liquid pot filtered by the third reservoir is injected into the filter housing of the second solid- . 13. The method of claim 12,
Wherein the plurality of first solid-liquid separators are connected in series.

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