WO2017146463A1

WO2017146463A1 - Sludge treating apparatus

Info

Publication number: WO2017146463A1
Application number: PCT/KR2017/001950
Authority: WO
Inventors: 최상진; 이태우; 김운섭
Original assignee: 주식회사 이엔텍
Priority date: 2016-02-23
Filing date: 2017-02-22
Publication date: 2017-08-31
Also published as: KR101807199B1; KR20170099217A

Abstract

The present invention relates to a sludge treating apparatus for treating sludge generated in a wastewater or sewage treatment plant. The sludge treating apparatus comprises: a frame; a pressing roller installed in the frame; a driving roller installed in the frame and disposed below the pressing roller; a driving motor for supplying power to rotate the driving roller; a filter belt passing between the pressing roller and the driving roller, the filter belt being connected with the driving roller to rotate in the clockwise or counterclockwise direction by rotation of the driving roller; and a wastewater feeding port through which wastewater can be fed to the filter belt, the wastewater feeding port being installed above the filter belt, wherein the pressing roller and the driving roller have the same diameter and rotate at the same speed.

Description

Sludge treatment equipment

The present invention is a sludge treatment apparatus for treating sludge generated in wastewater or sewage treatment plant, more specifically, by introducing wastewater into a filter belt consisting of a fine filter network, the solid sludge filtered by the fine filter network is dewatered and compressed into a compression roller. A sludge treatment apparatus for removing a sludge cake attached to a roller.

Due to the development of industry and improvement of living standard, various kinds of wastewater are generated and the water quality standards are gradually strengthened, and the sludge treatment apparatus of sewage or wastewater treatment plant treating this is also various.

Conventional sludge treatment apparatus is a centrifugal separation, screw press, filter press, belt press and the like. However, such a conventional sludge treatment apparatus has the following problems.

Centrifugal separation of gravity in the rotating cylinder by centrifugal force and the dehydration cake discharged by the screw with the rotation difference requires a large amount of power, requires regular screw replacement, and attention to operation management by high-speed rotation. There is this. The screw press has a problem in that a small amount of processing is applied in a manner of separating and discharging the solid solution by applying pressure to the screw surrounded by a cylindrical filter network having a hole, so that it can be combined with other equipment. Filler presses have a problem in that the mechanical structure is complicated and the life of the filter cloth does not last long by filtering the wastewater through the filter cloth attached to the filter plate by injecting the waste water into the pump.

Belt press is the most commonly used sludge treatment device. 1 shows a conventional belt press apparatus. Conventional belt presses basically require two belts. The belt press includes an upper belt 11, a lower belt 12, a plurality of rollers 20, and a frame 30. Conventional belt presses introduce wastewater at point A to treat sludge. Water in the wastewater introduced at point A passes through the belt to be treated water, and the solid sludge remaining on the belt is dewatered by compression between the belts. That is, sludge flows between the upper belt 11 and the lower belt 12, and the upper belt 11 and the lower belt 12 are compressed through the plurality of rollers 20 to treat the sludge.

Such a belt press may cause the following problems in the process of treating sludge. First, the conventional belt presses require a large number of rollers 20 because they pressurize using a plurality of rollers 20 to dewater the sludge, and the length of the

belts

11 and 12 is also long. . In addition, the meandering of the belts 11 and 12 (a phenomenon in which the belt is pulled to one side according to the driving of the belt) occurs, and there is a problem that a separate auxiliary device is required to prevent this.

In addition, the belt press must go through the process of flocculating the sludge with chemicals (coagulant and flocculent aid) in order to increase the dewatering efficiency of the waste water, and the dewatered sludge cake must be removed from the belt (11, 12) through the washing water. In this process, a large amount of washing water is required, and secondary sludge may occur because the sludge cake is not completely removed from the

belts

11 and 12. The contaminated

belts

11 and 12 should be replaced periodically, which may increase the cost of the sludge treatment apparatus and may cause difficulties in maintenance.

The present invention is to solve the above problems, more specifically, the wastewater is introduced into the filter belt consisting of a fine filter net to dewater the solid sludge filtered by the fine filter net with a compacting roller and remove the sludge cake attached to the compacting roller. It relates to a sludge treatment apparatus.

The sludge treatment apparatus of the present invention for achieving the above object is a frame; A pressing roller installed on the frame; A driving roller installed on the frame and disposed under the pressing roller; A drive motor for providing power to rotate the drive roller; A filter belt passing between the pressing roller and the driving roller and connected to the driving roller and rotatable in a clockwise or counterclockwise direction by the rotation of the driving roller; And a waste water inlet installed on the filter belt and into which the waste water can be introduced into the filter belt, wherein the compression roller and the driving roller have the same diameter and rotate at the same speed.

The filter belt of the sludge treatment apparatus of the present invention for achieving the above object is preferably made of a fine filter net and a support filter net that can support the fine filter net, the fine filter net is made of a mesh form with pores, The pore size is preferably 60 μm to 130 μm.

It is preferable that the compression roller of the sludge treatment apparatus of the present invention for achieving the above object is made of an elastic material, the compression roller is provided with a compression gear, the drive roller is provided with a drive gear, the compression gear and the It is preferable that the ratio of the drive gear is 1: 1.

The sludge treatment apparatus of the present invention for achieving the above object is further provided with a guide roller disposed on the lower portion of the filter belt and a guide support for supporting the guide roller, the compression support The roller, the drive roller, the filter belt is preferably provided with a plurality.

In the present invention, the wastewater is introduced into the filter belt consisting of a fine filtering network to filter the wastewater by the fine filtering network. The present invention has the advantage of not having to use a chemical (coagulant or flocculent aid) for flocculating the wastewater because of the use of a fine filtration network.

The sludge treatment apparatus of the present invention has the advantage that the number of rollers used is short and the length of the belt is simple, so that the structure is simple, no meandering of the belt occurs, easy maintenance, and low operating cost. In addition, the sludge treatment apparatus of the present invention has the advantage that the number of rollers used is small and the length of the belt is short to minimize the use power.

The sludge treatment apparatus of the present invention does not need a separate cleaning device for cleaning the belt by removing the sludge cake through the pressing roller, it is possible to prevent the contamination of the belt has the advantage of reducing the replacement cost of the belt .

1 is a view showing a conventional belt press.

2 is a perspective view of a sludge treatment apparatus according to an embodiment of the present invention.

3 is a side view of the sludge treatment apparatus according to the embodiment of the present invention.

4 is a view showing a fine filter net and a support filter net of the filter belt according to an embodiment of the present invention.

5 is a front view of a sludge treatment apparatus according to an embodiment of the present invention.

6 is a view showing the inclined filter belt of the sludge treatment apparatus according to an embodiment of the present invention.

7 is a view showing a scraper of the sludge treatment apparatus according to an embodiment of the present invention.

8 is a view showing a guide roller of the sludge treatment apparatus according to an embodiment of the present invention.

9 is a view showing that the sludge is attached to the pressing roller of the sludge treatment apparatus according to an embodiment of the present invention.

The present invention is a sludge treatment apparatus 100 for treating sludge generated in a wastewater or sewage treatment plant, the waste water is introduced into the filter belt 150 consisting of a fine filtration network 151, the solidity filtered by the fine filtration network 151 It relates to a sludge treatment apparatus 100 for dewatering the sludge with the pressing roller 120 and removing the sludge cake attached to the pressing roller 120.

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

2 and 3, the sludge treatment apparatus 100 of the present invention is the frame 110, the pressing roller 120, the drive roller 130, the drive motor 140, the filter belt 150, waste water inlet And 160.

The frame 110 serves to support the sludge treatment apparatus 100 as a configuration of the sludge treatment apparatus 100 of the present invention can be installed. The frame 110 may have various shapes as long as it can support the sludge treatment apparatus 100. In general, the frame 110 is formed of a rectangular parallelepiped shape, the configuration of the present invention may be installed inside the rectangular parallelepiped.

The pressing roller 120 is installed in the frame 110. The pressing roller 120 may be installed at one end of the frame 110. The pressing roller 120 is composed of a rotating shaft and a roller rotating along the rotating shaft. The rotating shaft is installed in the frame 110, the roller is rotated about the rotating shaft. Since the rotating shaft and the roller are well known technologies, detailed descriptions thereof will be omitted. The pressing roller 120 may be made of a variety of materials, the pressing roller 120 is preferably made of an elastic material having elasticity. In particular, the pressing roller 120 is preferably made of a rubber or urethane material having elasticity. When the pressing roller 120 is made of a rubber or urethane material, the sludge can be attached to the pressing roller 120 better.

The driving roller 130 is installed in the frame 110, it is disposed under the compression roller 120. The driving roller 130 is also made of a rotating shaft and a roller like the compression roller 120. The rotating shaft is installed in the frame 110, the roller is rotated about the rotating shaft. Since the rotating shaft and the roller are well known technologies, detailed descriptions thereof will be omitted.

The drive motor 140 is to provide power to rotate the drive roller 130. The drive roller 130 may rotate through the rotational power of the drive motor 140. The drive chain 132 may be used to transfer the rotational power of the drive motor 140 to the drive roller 130. The drive chain 132 is connected to the drive motor 140 and the drive roller 130 to provide a rotational power of the drive motor 140 to the drive roller 130. The method of providing the rotational power from the driving motor 140 to the driving roller 130 is not limited thereto, and may provide the rotational power in various ways.

The drive motor 140 may be installed on the upper portion of the frame 110. However, the installation position of the driving motor 140 is not limited thereto, and if the driving power is provided to the driving roller 130, it may be installed at various positions.

The filter belt 150 passes between the pressing roller 120 and the driving roller 130 and is connected to the driving roller 130 in a clockwise or counterclockwise direction by the rotation of the driving roller 130. It is rotatable. That is, the filter belt 150 may be compressed by the pressing roller 120 and the driving roller 130 while passing between the pressing roller 120 and the driving roller 130.

The filter belt 150 is a belt of an annular shape, one end of the filter belt 150 is connected to the drive roller 130. The filter belt 150 is formed to surround the drive roller 130, the filter belt 150 is also rotatable by the rotation of the drive roller 130.

A tension roller 111 may be provided at the other end of the filter belt 150. The tension roller 111 may be installed on the frame 110 to support the filter belt 150 and to adjust the tension of the filter belt 150.

That is, the filter belt 150 is a belt made of an annular shape, the driving roller 130 is provided at one end of the annular shape, and the tension roller 111 is provided at the other end. The filter belt 150 moves from the tension roller 111 to the driving roller 130 by the power of the driving roller 130 (or from the driving roller 130 to the tension roller 111). Can be rotated clockwise or counterclockwise. The tension of the filter belt 150 can be adjusted through the position of the tension roller 111.

Referring to FIG. 4, the filter belt 150 may have a dual structure of a fine filter net 151 and a support filter net 152. The fine filtration net 151 is made of a mesh form with pores, the support filtration net 152 is coupled to the fine filtration net 151 can support the fine filtration net 151. The support filtration net 152 is also made of a mesh form in which pores are formed, and the pores of the support filtration net 152 are larger than the pores of the fine filtration net 151.

The pore size of the fine filtration net 151 may be made of 60μm to 130μm, preferably 70μm to 110μm. To treat the sludge, water must be removed from the wastewater and the sludge from which the water has been removed must be compressed and dewatered. At this time, if the size of the pores of the microfiltration network 151 is too small (less than 60μm), the filtration function is reduced. In addition, when the size of the pores of the microfiltration network 151 is too large (130 μm or more), a large amount of wastewater passes through the microfiltration network 151 and thus, sludge cannot be efficiently processed.

In particular, when the pore size of the fine filtration network 151 is 70 μm to 110 μm, it is easy to process palm oil (palm waste water). The size of the filter net can be determined by the size of the solids in the waste water and the environmental conditions (temperature, pH, concentration, oil content in the waste water) of the waste water. The size of the solids was investigated through the particle size analysis of palm wastewater (the size of the particle size was 35 μm to 101 μm in the case of palm waste water), and the size of the pores of the micro filter network 151 was analyzed as a result of analyzing the environmental conditions of the palm waste water. In the case of 70 μm to 110 μm, the sludge cake was found to be most efficiently produced. The support filtration net 152 may be combined with the micro filtration net 151 to prevent damage to the micro filtration net 151, which may be weak in durability.

The waste water inlet 160 is installed on the filter belt 150 and is capable of injecting waste water into the filter belt 150. Wastewater is introduced into the filter belt 150 through the wastewater inlet 160, and the wastewater introduced into the filter belt 150 is drained through the filter belt 150. Water is left out and the remaining sludge is moved to the pressing roller 120 and the driving roller 130 along the filter belt 150, is compressed by the pressing roller 120 and the driving roller 130 to be dewatered do.

The wastewater inlet 160 may be formed in various shapes as long as it can inject wastewater into the filter belt 150, and may be formed in various positions if wastewater can be introduced into the filter belt 150. However, the wastewater inlet 160 is to be installed far away from the pressing roller 120 and the driving roller 130 because the water must be discharged before being compressed by the pressing roller 120 and the driving roller 130. desirable.

Referring to FIG. 5, the compression roller 120 and the driving roller 130 have the same diameter and may rotate at the same speed. When the pressing roller 120 and the driving roller 130 have the same diameter and rotate at the same speed, the sludge moved to the pressing roller 120 and the driving roller 130 through the filter belt 150 Only the pressing roller 120 is to be attached. That is, the sludge which has been drained of water from the wastewater on the filter belt 150 is compressed by the pressing roller 120 and the driving roller 130 to be dewatered, and then remains on the filtering belt 150 without being depressed. All of them will be attached to 120.

Through this, the filter belt 150 can be prevented from being contaminated by sludge. 9 is a view showing that the pressing roller 120 and the driving roller 130 have the same diameter, the sludge is attached only to the pressing roller 120 by rotating at the same speed.

In order to rotate the pressing roller 120 and the driving roller 130 at the same speed, the pressing roller 120 may be provided with a pressing gear 121 and the driving roller 130 may be provided with a driving gear 131. . The gear ratio of the compression gear 121 and the drive gear 131 is 1: 1, and thus the compression roller 120 and the driving roller 130 can rotate at the same speed. If the pressing roller 120 and the driving roller 130 can be rotated at the same speed, it is a matter of course that a variety of devices in addition to the pressing gear 121, the drive gear 131 can be used.

Referring to FIG. 6, the filter belt 150 may be inclined from one end of the frame 110 to the other end. Specifically, the filter belt 150 may be inclined downward from the place where the compression roller 120 and the drive roller 130 is located to the waste water inlet 160.

As the filter belt 150 is disposed to be inclined, water of the wastewater introduced from the wastewater inlet 160 may be more easily filtered. In addition, referring to Figure 6, while the wastewater is introduced into the filter belt 150 in the wastewater inlet 160, water pressure is formed at the water level of about 3 ~ 5cm, whereby water from the wastewater sludge is discharged by the water pressure Can be consolidated. Through this consolidation it is possible to continuously filter the water in the sludge, the sludge filtered water is moved to the pressing roller 120 and the driving roller 130.

Referring to Figure 7, the sludge treatment apparatus 100 of the present invention is installed on the filter belt 150, and further comprises a scraper 153 that can be turned over by scraping the waste water introduced over the filter belt 150. Can be. The scraper 153 may be in contact with the filter belt 150 to scrape over the waste water introduced on the filter belt 150. (The scraper 153 may be in full contact with the filter belt 150, and may be partially separated.) The scraper 153 may be formed in various shapes as long as the scraper can be scraped upside down. It may be formed in the concave-convex shape. (The concave-convex shape may be made of a shape consisting of a protrusion and a groove repeatedly.)

The scraper 153 may be fixed to the frame 110, and the scraper 153 may be inverted by scraping the waste water by the movement of the filter belt 150. The scraper 153 may filter the remaining water on the sludge surface as the wastewater is scraped and flipped over. When the wastewater is introduced into the filter belt 150, water in the lower portion of the wastewater is filtered, but water on the surface may not be filtered by the solid sludge. The scraper 153 scrapes the waste water and flips it over, thereby further filtering the water remaining on the surface of the solid sludge.

Referring to FIG. 8, the sludge treatment apparatus 100 of the present invention is installed on the guide roller 170 and the frame 110 disposed under the filter belt 150 to support the guide roller 170. The guide support 171 may be further included. The guide roller 170 may prevent the filter belt 150 from sagging due to the load of the wastewater introduced into the filter belt 150, and keep the filter belt 150 flat.

In addition, the guide roller 170 may serve to drop the water passing through the filter belt 150 to the drip tray. Water passing through the filter belt 150 is moved along the filter belt 150 by the movement of the filter belt 150. Due to such a phenomenon, it may be difficult to collect water moving along the filter belt 150. However, when the guide roller 170 is installed below the filter belt 150, the water moving along the filter belt 150 does not move any more at the point where the guide roller 170 is installed and falls to the upper drip tray. do. Through this, there is an advantage that can more easily collect the water passing through the filter belt 150.

The guide support 171 may support the guide roller 170. The guide support 171 is installed on both sides of the filter belt 150, the groove is provided that can be inserted into the shaft of the guide roller 170. The guide support 171 may be provided with a plurality of grooves to support the plurality of guide rollers 170. The material of the guide support 171 may be made of polypropylene or the like.

1, the sludge treatment apparatus 100 of the present invention is disposed on the pressing roller 120, the cake drag 112, which can remove the sludge attached to the pressing roller 120, the frame It is installed on the 110 and the cake receiver 113, the sludge removed by the cake drag 112 is arranged in the lower portion of the filter belt 150, the water filtered by the filter belt 150 A lower drip tray (not shown), which is disposed under the driving roller 130 and receives the dewatered water by being compressed by the pressing roller 120 and the driving roller 130 (not shown). ) May be further included.

The cake drag 112 is to remove the sludge to be attached to the compression roller 120. The cake drag 112 may be formed in various shapes if the sludge attached to the pressing roller 120 can be removed. In general, the cake drag 112 is installed on the pressing roller 120 and may have a plate shape having a blade. The cake drag 112 having a blade shape is disposed on an upper portion of the pressing roller 120 to contact the pressing roller 120, and the pressing roller 120 is rotated by the pressing roller 120. Sludge is removed.

The cake receiving 113 is installed in the frame 110, it is possible to collect the sludge formed by the cake drag 112. The cake receiver 113 may be installed at various positions in various shapes if the sludge formed in the cake drag 112 can be collected. In general, the sludge formed by the cake drag 112 is preferably located below the cake drag 112 so as not to be scattered.

The upper drip tray 114 is disposed below the filter belt 150 to receive the water filtered by the filter belt 150. The lower drip tray (not shown) is disposed below the driving roller 130 and receives the dewatered water by the pressing roller 120 and the driving roller 130. The upper drip tray 114 and the lower drip tray (not shown) may be formed in a variety of shapes if it can receive water, the water filtered by the filter belt 150 and the pressing roller 120 and the driving roller ( If the dewatered water by the compression of 130) can be installed in a variety of positions, of course.

Looking at the operation method of the sludge treatment apparatus 100 of the present invention described above are as follows.

One end of the filter belt 150, the drive roller 130, the other end of the filter belt 150 is provided with the tension roller 111. That is, the filter belt 150 is formed in a ring shape, and the driving roller 130 and the tension roller 111 are installed at one end and the other end of the inside of the ring shape so that the driving roller 130 and the tension roller are installed. The filter belt 150 is to rotate between the (111). The upper portion of the filter belt 150 in the direction of the tension roller 111 in the drive roller 130, the lower portion of the filter belt 150 in the direction of the drive roller 130 in the direction of the tension roller 111. The filter belt 150 is moved.

Wastewater is introduced into the filter belt 150 through the wastewater inlet 160. The introduced wastewater is collected through the filter belt 150 and collected in the upper drip tray 114. At this time, since the filter belt 150 is composed of a dual structure of the fine filter net 151 and the support filter net 152, a separate chemical (coagulant or flocculent aid) is not required.

The wastewater introduced into the upper portion of the filter belt 150 is scraped upside down by the scraper 153 and the wastewater is filtered once more. Sludge is drained from the waste water is moved to the pressing roller 120 and the driving roller 130 along the filter belt 150. Sludge is dewatered while being compressed by the pressing roller 120 and the driving roller 130. Water is dehydrated and the remaining sludge is attached to the pressing roller 120. 9, the press roller 120 and the driving roller 130 have the same diameter, and all the sludge is attached to the press roller 120 because the press roller 120 rotates at the same speed. The sludge attached to the pressing roller 120 is removed by the cake drag 112 is collected in the cake receiving 113.

The sludge treatment apparatus 100 of the present invention described above has the following effects.

Conventional belt presses may have difficulty in using a fine filtering network due to belt durability problems, belt meandering problems, and the like. The belt using the micro filter network has a filter press, but the filter press has a small sludge treatment capacity and difficult operation management of the equipment.

However, the filter belt 150 of the sludge treatment apparatus 100 of the present invention uses a double structure as the fine filter net 151 and the support filter net 152. The support filter net 152 can solve the durability problem of the belt, it is possible to process the sludge using the fine filter net 151. By treating the sludge with the fine filtration net 151, there is no need to use a chemical (coagulant or flocculent aid), thereby reducing the sludge treatment cost and easy operation of the sludge treatment.

In addition, the sludge treatment apparatus 100 of the present invention has a smaller number of rollers and a shorter belt length than the conventional belt press. Accordingly, the meandering of the belt does not occur, and there is an advantage in that maintenance is easy and operation cost is low.

In addition, the structure is simple, it is possible to simply manufacture the equipment, there is no need for additional equipment for the use of chemicals, the length of the belt is short and the number of rollers used has the advantage of treating the sludge with a small driving power.

Conventionally, washing water should be used to remove sludge remaining in the belt, and secondary pollution of the belt may occur due to sludge not removed by the washing water. The belt is damaged by the secondary contamination of the belt, and there is a problem in that the belt needs to be replaced periodically. However, the sludge treatment apparatus 100 of the present invention removes sludge by attaching sludge only to the pressing roller 120 as the pressing roller 120 and the driving roller 130 rotate at the same diameter and at the same speed. can do. Therefore, the sludge does not remain in the filter belt 150 so that a separate cleaning device and washing water for cleaning the belt are not required, and secondary contamination of the filter belt 150 may be prevented. This can reduce the replacement cost of the belt, has the advantage of increasing the service life of the belt.

The sludge treatment apparatus 100 of the present invention described above may be modified and used as follows.

The pressing roller 120, the driving roller 130, the filter belt 150 of the sludge treatment apparatus 100 of the present invention may be provided with a plurality. That is, the sludge treatment apparatus 100 of the present invention may have a multi-layered structure by installing a plurality of the pressing rollers 120, the driving rollers 130, and the filtering belts 150 on one frame 110. have. Preferably a two-layer structure can be used, it may be used in a three-layer, four-layer, five-layer structure.

In order to operate the sludge treatment apparatus having a multi-layer structure, one driving motor 140 may be provided and driving power may be provided to each layer by using the driving chain 132. That is, the driving motor 140 and the driving roller 130 in the first layer are connected to the driving chain 132 to provide power to the first layer, and the driving roller 130 of the first layer and the second layer The drive roller 130 can be connected to the drive chain 132 to provide power to the second floor. (In the same way, power can be transmitted to the third and fourth floors.) It is possible to reduce the power of the sludge treatment apparatus by providing power to a plurality of layers through the drive motor 140 of the, and there is an advantage to increase the sludge treatment capacity by using a multi-layer structure.

While the present invention has been described with reference to various embodiments, it is not limited thereto, and any thing that can be reasonably interpreted from the scope of the present invention will naturally belong to the scope of the present invention.

Claims

As sludge treatment device,

frame;

A pressing roller installed on the frame;

A driving roller installed on the frame and disposed under the pressing roller;

A drive motor for providing power to rotate the drive roller;

A filter belt passing between the pressing roller and the driving roller and connected to the driving roller and rotatable in a clockwise or counterclockwise direction by the rotation of the driving roller; And

It is installed on the filter belt, the waste water inlet for injecting waste water into the filter belt; includes;

The pressing roller and the driving roller has the same diameter, the sludge processing apparatus, characterized in that for rotating at the same speed.
The method of claim 1,

The filter belt is a sludge processing apparatus, characterized in that consisting of a fine filter net and a support filter net that can support the fine filter net.
The method of claim 2,

The fine filtration network is made of a mesh form with pores,

Sludge treatment apparatus, characterized in that the pore size is 60μm to 130μm.
The method of claim 1,

The pressing roller is a sludge treatment apparatus, characterized in that made of an elastic material having elasticity.
The method of claim 1,

The compression roller is provided with a compression gear, the drive roller is provided with a drive gear,

Sludge treatment apparatus characterized in that the ratio of the compression gear and the drive gear is 1: 1.
The method of claim 1,

A guide roller disposed below the filter belt;

Sludge treatment apparatus installed on the frame, further comprising a guide support for supporting the guide roller.
The method of claim 1,

Sludge treatment apparatus, characterized in that the plurality of the compression roller, the drive roller, the filter belt is provided.