KR101510751B1 - Separate type food waste disposal system - Google Patents

Abstract

The present invention relates to a separate type food waste disposal system including a by-product storage tank, which stores the by-products temporarily, has the low and high level sensors inside; and includes an excess sewage outlet on an internal face; a by-product hydroextractor where the by-products come from the by-product storage tank and the inflowing by-products are separated into the sludge and sewage for the separated discharge; a sludge storage tank to collect and store the sludge separately discharged from the by-product hydroextractor; a sewage storage tank to collect and store the sewage separately discharged from the by-product hydroextractor; and a control. The present invention as such improves the efficiency of sewage purification as the byproducts from a disposer is separated into the sludge and sewage before going into a sewage terminal disposal plant so that the only sewage goes to the plant while the sludge is separately discharged.

Description

Separate type food waste disposal system [0002]

The present invention relates to a detachable food garbage disposal system capable of separating and processing sludge and sewage from by-products passed through a disposer.

In general, food waste generated in homes and restaurants is collected and discharged with water removed, or disposer is installed on the sink drainage pipe to finely grind food waste and discharge it to the sewage pipe together with sewage Such disposers have already been disclosed in Korean Patent Laid-Open Publication No. 10-2012-0088193 (Published Aug. 8, 2012).

However, when the finely pulverized food waste is discharged through the disposer into the sewer together with the sewage from the kitchen, it causes many problems.

That is, if the by-product treated through the disposer is not completely decomposed and the sludge is discharged into the sewer together with the sewage in the form of pulverized sludge, the sewer pipe is easily clogged by the sludge, and when the sludge is introduced into the river, It can become corrupted and malodorous, and water quality can be contaminated.

On the other hand, the authorities that manage sewage treatment have separate sewage disposal plants to treat the sewage discharged from households and restaurants. These sewage disposal plants do not consider disposal of food waste through the disposer, It is designed for the treatment of sewage effluent. Therefore, authorities are required to regulate disposers installed in homes and restaurants for the smooth and normal treatment of sewage.

However, since households and restaurants where disposers are installed are gradually increasing and management supervision by the authorities is not being performed properly, the number of disposers installed in homes and restaurants may be increased, and food waste disposal Devices are urgently required.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a sludge treatment method and a sludge treatment method which can separate sludge and sewage from dehydrated sludge before reaching a sewage end treatment plant, The present invention provides a disposable food garbage disposal system.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

According to a preferred embodiment of the present invention, a by-product storage device for temporarily storing by-products discharged from at least one disposer and discharging the by-product to a lower part, a low level sensor for measuring a level of by- And a by-product dewatering device for selectively discharging by-products discharged from the by-product storage tank into the inside thereof, a by-product dewatering device for dewatering the by- A sludge storage tank for collecting and storing the sludge separated and discharged; a sewage storage tank for collecting and storing the sewage separated and discharged from the byproduct dewatering device; and a control device for turning off the inflow opening and closing valve when the by- The byproduct dewatering device stops operating And a control section for turning on the inlet opening / closing valve and activating the by-product dewatering device when the by-product stored in the by-product storage tank is sensed by the high level sensor, The outlet of the surplus sewage outlet is connected to the sewage reservoir, and the outlet of the surplus sewage outlet is connected to the sewage reservoir.

More preferably, the byproduct dewatering device is provided in plurality, and the byproduct dewatering device and the plurality of byproduct dewatering devices are connected to each other through the selective connection of the pipe switching valve, and the pipe switching valve is operated through control of the control part.

More preferably, the by-product dewatering device has a housing in which the bottom surface is inclined downward from one side to the other side, a sludge outlet is formed on one side, a sewage outlet is formed on the other side and a by-product inlet is formed on the other side, A partition plate that is horizontally disposed above the discharge port and is configured to have a gap between an end portion facing one side and a bottom surface of the housing; a drive shaft rotatably installed inside the housing by a drive motor; And a screw conveyor having a helical screw to maintain a constant gap with the inner surface of the housing.

More preferably, the sludge storage tank is provided with a sludge storage container capable of entering and leaving the inside and outside, and a level sensing sensor is provided in the sludge storage container so that the discharge time of the sludge filled in the sludge storage container can be determined.

More preferably, the opening and closing doors are provided on either side of the sewage storage tank, and a filter net for filtering the sludge of sewage separated and discharged from the by-product dewatering device is detachably installed inside the sewage storage tank.

The present invention is configured such that the byproduct discharged through the disposer is separated into sludge and sewage through a dehydration process before being introduced into the sewage end treatment plant, and the sludge is separately discharged and moved to the sewage end treatment plant only by the sewage, So that the processing efficiency can be further improved.

In addition, since the effect of the present invention described above is expected to be exerted by the composition of the contents regardless of whether or not the inventor perceives it, the effect described above is only some effects according to the contents described, Should not be recognized.

Further, the effect of the present invention should be grasped further by the entire description of the specification, and even if it is not stated in an explicit sentence, a person having ordinary skill in the art to which the written description belongs, It should be seen as an effect described in this specification.

1 is a configuration diagram illustrating a system for separating food waste according to an embodiment of the present invention.
2 is a perspective view illustrating a configuration of a separated food garbage disposal system according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view illustrating a main part illustrating a by-product dewatering apparatus for a discrete food garbage disposal system according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a by-product dewatering apparatus of a separated food waste disposal system according to another embodiment of the present invention.
FIG. 5 is a flowchart illustrating an important operation process of the separated food garbage disposal system according to an embodiment of the present invention.

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

It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the present invention being indicated by the appended claims rather than by the foregoing description.

In addition, the sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and the terms defined specifically in consideration of the structure and operation of the contents described may vary depending on the intention or custom of the user or the operator And the definitions of these terms should be based on the contents throughout this specification.

The separated food garbage disposal system according to the present invention includes a byproduct storage tank in which by-products discharged from the disposer are moved and temporarily stored, a by-product dewatering device for separating and discharging the by-product into sludge and sewage, A sludge storage tank for storing the sludge separated and discharged from the by-product dewatering device, and a sewage storage tank for storing the sludge separated and discharged from the by-product dewatering device. The components will be described in detail with reference to FIG. 1 and FIG. .

The byproduct storage tank (100)

And temporarily discharges the by-products containing sludge and sludge discharged from a plurality of disposers 600 installed at a home or a restaurant.

The shape of the byproduct storage tank 100 does not need to be determined to be any one, and it can be formed into a funnel shape that is wide on the upper side and narrows toward the lower side for smooth gravity discharge.

The disposer 600 and the byproduct storage tank 100 may be connected to each other through a connection pipe, and such a connection pipe is provided with a check valve for preventing backflow.

The by-product storage tank 100 is provided with water level sensing means for measuring the level of the byproducts stored therein, and one example of the water level sensing means is a low level sensor 120 and a low level sensor 120, A high level sensor 110 may be installed and the low level sensor 120 and the high level sensor 110 are connected to the control unit 500.

Therefore, when the byproducts flowing into and stored in the byproduct storage tank 100 are low water level sensed by the low level sensor 120, the controller 500 senses the byproduct and stops driving the byproduct dewatering device 200 The controller 500 senses the by-product, which is introduced into the by-product storage tank 100 and is stored in the by-product dewatering unit 200, And the by-products are treated.

When the level of the byproducts stored in the byproduct storage tank 100 reaches the high level sensor 110, the byproduct dewatering device 200, which will be described later, is operated and the byproduct is transferred to the byproduct dewatering device 200, It is necessary to design the discharge amount of the by-product to be transferred to the by-product dewatering device 200 to be equal to or larger than the inflow amount of the by-product to be introduced into the internal combustion engine 100. In case the inflow amount is larger than the discharge amount of the by- Means for preventing the overflow from being overflowed in the storage tank 100 may further be provided.

As an embodiment of the means for preventing the overflow of the byproducts, an excess sewage discharge portion 130 is formed on the inner surface of one side of the byproduct storage tank 100 so as to be positioned above the high level sensor 110, A drain line 131 is installed at the entrance of the waste water drainage unit 130 and an outlet of the waste drainage unit 130 is connected to the sewage storage tank 400 described later.

Thus, even if the byproduct entering the byproduct storage tank 100 exceeds the high level sensor 110, the excess byproduct can be transferred to the sewage storage tank 400 through the surplus sewage discharge unit 130, Only the sewage can be moved to the sewage storage tank 400 because the sludge contained therein is blocked through the sieve 131 formed at the inlet of the surplus sewage discharge unit 130.

The byproduct dewatering device 200,

The byproduct discharged from the by-product storage tank 100 is supplied through a connection pipe, separated into sludge and sewage, and discharged individually.

As shown in FIG. 3, the by-product dewatering device 200 includes a housing 210 into which a by-product flows, and a screw conveyor 213 that dewaterizes the incoming by-product to separate the sludge and sewage water .

The inner space of the housing 210 is gradually increased from one side toward the other side so that the inner bottom surface is inclined gradually from one side to the other side. The sludge outlet 211 is formed at the lower side of one side, and the sludge outlet 211 is formed at the lower side of the side. And a by-product inlet 218 is formed on the upper surface of the other side.

A partition plate 217 is installed in the housing 210 to prevent the byproducts flowing in the by-product inlet 218 from being discharged directly to the drain outlet 212.

The partition plate 217 is horizontally installed on the other side of the housing 210 above the sewage outlet 212. The other end of the partition plate 217 is connected to the other side of the interior of the housing 210 And one end portion of the partition plate 217 is maintained in a predetermined gap with the inclined bottom surface of the housing 210 so that the sewage is moved through the gap and discharged to the sewage discharge port 212.

A driving shaft 214 is installed in the longitudinal direction of the housing 210. One of the driving shaft 214 is rotated by a driving motor 215 located outside the housing 210, On the outer circumferential surface, a spiral screw 216 is formed along the longitudinal direction to form a single screw conveyor 213.

The screw 216 is configured to gradually increase in size from one side to the other side in correspondence with the inner space of the housing 210 so that the outer surface of the screw 216 and the inner surface of the housing 210 are spaced apart from each other .

When the byproduct is introduced through the byproduct inlet 218 of the housing 210, the byproduct is shaken on the partition plate 217 and the driving shaft 214 and the screw 216, which are driven by the driving motor 215, The byproduct is pushed to one side by the rotation of the screw 216 and the sludge is discharged through the squeezing with the inner surface of the housing 210. The sewage discharged from the by- The sludge discharged from the byproducts is discharged through the sludge discharge port 211. The sludge discharged from the sludge discharge port 211 is discharged through the sludge discharge port 211. [

4 illustrates another embodiment of the by-product dewatering device, which includes a housing 210 into which byproducts are introduced and a screw conveyor 213 that dewateres the incoming by-products to separate them into sludge and sewage. Which is the same as the embodiment of the by-product dewatering device.

The difference is that the drive shaft 214a is formed of a tube body having a hollow portion formed therein and a byproduct inlet 218a is formed at one side of the drive shaft 214a and a byproduct outlet 218b is formed at the other side surface of the drive shaft 214a It is a point.

The byproduct is introduced into one side by-product inlet 218a of the drive shaft 214a and then passes through the inside of the driving shaft 214a and is discharged to the side product outlet 218b of the other side, 217 are pushed to one side in accordance with the rotation of the drive shaft 214a and the screw 216 according to the driving of the driving motor 215 and the sludge is discharged to the sewage discharge port 212 through the compression with the inner surface of the housing 210. [ And the sludge can be discharged through the sludge discharging port 211.

The byproduct inlet 218a at one side of the drive shaft 214a is connected to the byproduct storage vessel 100 through a connection pipe and the byproduct inlet 218a is connected to the connection pipe through a bearing, And is prevented from being interfered by the connection pipe connected to the byproduct storage tank 100.

At least one perforation (not shown in the figure) may be formed on the surface of the screw 216, and the water content of the sewage contained in the sludge may be controlled by adjusting the size of the perforation or the number of perforations formed.

In addition, it is preferable that a plurality of guide grooves are formed in the other bottom surface of the housing 210 so that the sewage drained from the sludge is easily discharged to the drainage outlet 212.

The byproduct dewatering apparatus 200 can separate the by-product by squeezing and dewatering the sludge and the sewage water through the structure including the housing 210 and the screw conveyor 213 described above, but separating the by-product into sludge and sewage Centrifugal separator.

The by-product dewatering device 200 may be driven or turned off according to the application of power to the by-product dewatering device 200 according to the level of by-products stored in the by-product storage tank 100, Is stopped or driven through the control unit 500. [

The byproduct dewatering apparatus 200 includes an inlet opening / closing valve 220 installed at one side of the byproduct inlet 218a for opening and closing the byproducts into the byproduct inlet 218a Closing valve 220 is controlled through the control unit 500 described above.

This is because when the byproduct stored in the byproduct storage tank 100 does not reach the high level sensor 110 beyond the low level sensor 120, the byproduct dewatering device 200 is stopped by the control unit 500 When the byproducts stored in the byproduct storage tank 100 are introduced into the byproduct inflow ports 218a and 218a of the byproduct dewatering apparatus 200 by gravity, the byproducts are directly discharged from the sludge discharge port 211 and the sewage discharge port 212 ). ≪ / RTI >

The control unit 500 stops the byproduct dewatering apparatus 200 when the byproducts stored in the byproduct storage tank 100 exceed the low level sensor 120 and does not reach the high level sensor 110, The valve 220 is closed and the byproduct stored in the byproduct storage tank 100 exceeds the high level sensor 110 to open the inlet switching valve 220 and configure the byproduct dewatering device 200 will be.

Meanwhile, in the separated food waste disposal system according to the present invention, one or more by-product dewatering device 200 may be installed.

This is because the by-product dewatering device 200 has a plurality of by-products dewatering devices 200, so that when one of the by-product dewatering devices 200 fails to operate due to failure or the like, So that the treatment of the garbage can proceed continuously without interruption.

The main byproduct dewatering device 200a and the auxiliary byproduct dewatering device 200b can be divided into a main byproduct dewatering device 200a and an auxiliary byproduct dewatering device 200b in the case where there are two byproduct dewatering devices 200, And the pipeline switching valve 230 is connected to the main byproduct dewatering device 200a or the byproduct dewatering device 200a in accordance with the switching operation, Thereby connecting the dewatering device 200b.

Accordingly, the control unit 500 periodically grasps the state of the main byproduct dewatering unit 200a to which it is preferentially connected. When the abnormality occurs, the control unit 500 switches the pipe line switching valve 230 to switch the byproduct storage tank 100 and the main byproduct dewatering unit 200a And connects the by-product storage tank 100 and the auxiliary by-product dewatering device 200b.

Here, the pipe line switching valve 230 is exemplified as a function of selectively connecting the byproduct storage tank 100 to the main byproduct dewatering device 200a or the auxiliary byproduct dewatering device 200b. However, if necessary, the byproduct dewatering device 200 may include a plurality of And to simultaneously connect a plurality of the plurality of by-product dewatering apparatuses 200 to each other.

The sludge storage tank (300)

Is a device for collecting sludge separated from by-products through the above-described by-product dewatering device (200).

The sludge storage tank 300 is connected to the sludge discharge port 211 of the by-product dewatering device 200 through a connection pipe and has an internal space of a predetermined size to store sludge discharged to the sludge discharge port 211.

The sludge storage tank 300 may store the sludge directly by using the internal space, but it is preferable to form the door 310 on either the front or rear side or the both sides of the sludge storage tank 300, And a sludge storage container 311 capable of entering and exiting the inside and the outside of the sludge storage tank 300.

The sludge storage container 311 may be slid inside or outside the sludge storage tank 300 through a rail structure and may be moved in or out of the sludge storage tank 300. A rolling member may be provided on the bottom surface of the sludge storage container 311 to secure mobility of the sludge storage container 311 You may.

If the amount of the sludge to be filled in the sludge storage vessel 311 of the sludge storage tank 300 exceeds a certain amount, it is necessary to discharge the sludge to the outside and remove the sludge.

Accordingly, by providing a sensing means such as a pressure sensor and a level sensor 312 so as to measure the amount of sludge filled into the sludge storage vessel 311 inside or outside the sludge storage vessel 311, The discharge time of the sludge to be filled in the storage tank 300 can be effectively determined and easily removed.

The sewage storage tank (400)

Is a device for collecting sewage separated from by-products through the above-described by-product dewatering device (200).

The sewage storage tank 400 is connected to the sewage discharge port 212 of the byproduct dewatering apparatus 200 through a connection pipe and a check valve is provided in the connection pipe to prevent the sewage filled in the sewage storage tank 400 from flowing backward .

The sewage storage tank 400 may have a closed storage space for storing a predetermined amount of sewage therein, and a drain valve for cleaning may be opened and closed below the sewage storage tank 400.

The filtering network 410 may further include a sludge in the sewage discharged through the sewage discharge port 212 of the by-product dewatering device 200. [ It is for precisely filtering the sludge.

The opening and closing door 420 may be further spaced apart from the bottom surface of the sewage storage tank 400 by a predetermined distance. The reason why the opening and closing door 420 is spaced apart from the bottom surface of the sewage storage tank 400 is that, So as to prevent leakage of sewage filled through the opening / closing door 420.

When the filter net 410 is detachably installed in the sewage storage tank 400 through the opening and closing door 420 to remove the sludge from the filter net 410, And can be easily removed, and the cleaning and maintenance of the filter net 410 can be more effectively performed.

The sewage collected through the sewage storage tank 400 is then transferred to a sewage end treatment plant and processed.

The process of the separated food garbage disposal system according to the present invention will be described with reference to FIG.

First, in the embodiment of the present invention to be described below, a plurality of embodiments will be described in which the by-product dewatering device is composed of a main by-product dewatering device 200a and an auxiliary by-product dewatering device 200b which are not independent.

First, when a by-product is discharged from a plurality of disposers 600 installed at a residence or a shopping mall, the by-product flows into the byproduct storage tank 100 through the connection pipe.

The level of the byproducts flowing into and stored in the byproduct storage tank 100 is continuously sensed by the low level sensor 120 and the high level sensor 110 connected to the controller 500. In operation S110,

In this case, when the level of the byproduct is determined to be a small amount detected by the low level sensor 120 (S122), the controller 500 turns off the main inlet opening / closing valve 220a to prevent unnecessary power consumption (S123) The operation of the by-product dewatering device 200a is stopped (S124)

However, when the level of the by-product is determined to be a predetermined amount sensed by the high level sensor 110 (S121), the control unit 500 turns on the main inlet opening / closing valve 220a (S130) (S140)

If the operation of the main byproduct dewatering unit 200a is abnormal and the operation of the main byproduct dewatering unit 200a occurs (S150), the controller 500 checks the main byproduct dewatering unit 200a periodically The controller 500 turns off the main inflow opening / closing valve 220a (S161) and stops the operation of the main byproduct dewatering apparatus 200a (S162)

The control unit 500 operates the conduit switching valve 230 to close the conduit connecting the by-product storage tank 100 and the main by-product dewatering unit 200a, The piping of the by-product storage tank 100 and the auxiliary by-product dewatering device 200b is opened.

Then, the control unit turns on the auxiliary inflow opening / closing valve 220b together with the piping of the byproduct storage tank 100 and the auxiliary byproduct dewatering unit 200b (S181), and then activates the auxiliary byproduct dewatering unit 200b (S182).

When the auxiliary byproduct dewatering device 200b is operated in accordance with the abnormality of the main byproduct dewatering device 200a or the main byproduct dewatering device 200a, the byproduct may be supplied to the main byproduct dewatering device 200a or the auxiliary by- And is then pushed to one side by the screw 216 according to the rotation of the drive shaft 214 (214a) after being separated from the partition plate 217 inside the housing 210, And the sludge is continuously moved along the screw 216 and discharged through the sludge discharge port 211. The sewage is discharged from the housing 210 And is discharged to the sewage discharge port 212. [0050] As shown in FIG.

When the pores are formed in the screw 216, if the size of the perforation is increased or the number of pores is increased, the by-products may be squeezed and dewatered, and the sewage discharged from the sludge may be discharged through the sewage discharge port 212, If the pore size is relatively small or the number of pores is small, the by-product can be squeezed and dewatered, and the discharged sewage can be discharged through the sewage discharge port 212 in a small amount, The water content of the sewage contained in the sewage is minimized.

The sludge discharged through the sludge discharge port 211 of the byproduct dewatering apparatus 200 is accumulated in the sludge storage vessel 311 located inside the sludge storage tank 300 and the sludge is accumulated in the sludge storage vessel 311 The level sensor 312 senses this and the alarm is sent to the disaster prevention room or the security room or the management room through a notification means such as an alarm or the like so that the operator opens the door 310 of the sludge storage tank 300 and opens the sludge storage vessel 311, The sludge can be discharged to the outside.

The waste water discharged through the waste water outlet 212 of the byproduct dewatering apparatus 200 is stored in the waste water storage tank 400. At this time, The sludge contained in sewage discharged to the sewage discharge port 212 of the byproduct dewatering apparatus 200 is filtered.

The filter net 410 can be drawn out to the outside through the opening and closing door 420 formed on the front surface of the sewage storage tank 400 to easily remove the sludge filtered by the filter net 410 and to clean the contaminated filter net 410 Exchange and the like can be facilitated.

And the sewage stored in the sewage storage tank 400 is transferred to a sewage end treatment plant located outside the apparatus and treated.

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the disclosed contents should not be limited to the described embodiments, but should be determined by the appended claims and equivalents thereof.

100: Byproduct storage tank 110: High level sensor
120: Low level sensor 130: Surplus sewage discharge unit
131: Filter 200: Byproduct dewatering device
210: housing 211: sludge outlet
212: Sewer outlet 213: Screw conveyor
214: drive shaft 215: drive motor
216: screw 217:
218: Byproduct inlet 220: Inlet opening / closing valve
230: conduit switching valve 300: sludge storage tank
310: door 311: sludge storage container
312: Level sensing sensor 400: Sewage storage tank
410: filter net 420: opening / closing door
500: control unit 600:

Claims (5)

A byproduct storage tank in which a by-product discharged from at least one disposer is temporarily stored and discharged to a lower portion, and a low-level sensor and a high-level sensor for measuring the level of byproducts stored therein are installed;
A byproduct dewatering device for selectively removing the byproduct discharged from the byproduct storage tank and separating the byproduct introduced into the dewatering device into sludge and sewage;
A sludge storage tank for collecting and storing the sludge separated and discharged from the by-product dewatering device;
A sewage storage tank for collecting and storing sewage water separated and discharged from the byproduct dewatering device; And
When the by-product stored in the by-product storage tank is sensed by the low-level sensor, the on-off switching valve is turned off and the by-product dewatering device stops operating, and when the by- And a control section for operating the by-product dewatering device,
The surplus sewage discharge unit is disposed on an inner surface of one side of the byproduct storage tank, and a filter screen is installed at an inlet of the surplus sewage discharge unit. An outlet of the surplus sewage discharge unit is connected to the sewage storage tank Wherein the food garbage disposal system comprises:
The method according to claim 1,
Wherein the byproduct dewatering device is provided in plurality and the byproduct dewatering device and the plurality of byproduct dewatering devices are connected to each other through a selective connection of a pipe line switching valve and the pipe line switching valve is operated through the control of the control part Detachable food waste disposal system.
The dewatering device according to claim 1,
A housing having an inner bottom surface inclined downward from one side to the other side, a sludge outlet formed on one side, a sewage outlet on the other side, and a by-product inlet on the other side;
A partition plate installed horizontally above the sewage discharge port on the other side of the housing and configured to have a gap between an end portion facing one side and a bottom surface of the housing; And
A drive shaft rotatably installed inside the housing by a drive motor and a screw conveyor formed on an outer circumferential surface of the drive shaft to form a spiral screw which is spaced apart from the inner surface of the housing along the longitudinal direction, Food waste disposal system.
The method according to claim 1,
Wherein the sludge storage tank is provided with a sludge storage container capable of entering and leaving the inside and outside of the sludge storage tank, and a level sensing sensor is installed in the sludge storage vessel to determine a discharge time of the sludge to be filled in the sludge storage vessel. Food waste disposal system.
The method according to claim 1,
And a filter net for filtering the sludge of the sewage separated and discharged from the by-product dewatering device is detachably installed on the upper side of the sewage storage tank on one side of the sewage storage tank. system.

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