A fecal sludge classification and treatment system

Abstract

This invention discloses a fecal sludge sorting and treatment system in the field of sludge treatment technology, including a sludge collection tank, a grit chamber, a sludge sorting and treatment tank, an anaerobic fermentation treatment tank, a biogas slurry concentration treatment tank, and a composting fermentation treatment tank, all connected by pipelines. The sludge sorting and treatment tank includes a tank body, with a first partition, a second partition, and a third partition on the inner side wall of the tank. A first motor is installed at the center of the first partition, and a turntable is installed on the output shaft of the first motor. Electromagnetic strips are fixedly installed on both sides of the inner side wall of the tank above the first partition. A rotating shaft is connected to the side of the first motor away from the turntable, and several stirring rods are installed on the rotating shaft. A filter bucket is installed on the upper surface of the third partition, and a water pump is located at the center of the inner side wall of the bottom of the filter bucket. Several water spray holes are opened on the inner side wall of the bottom plate of the filter bucket. A second motor is fixedly installed at the center of the bottom of the tank body, and a dewatering bucket is coaxially installed on the output shaft of the second motor. This invention solves the problem of sorting and treating fecal sludge.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, specifically a fecal sludge classification and treatment system. Background Technology

[0002] With economic and social development and the gradual expansion of urban populations, the amount of sludge generated by urban sewage treatment plants is increasing. Sludge from sewage treatment plants differs from municipal sludge in several ways: it contains more coarse debris and sand; it has a stronger odor; the supernatant has a very high concentration of pollutants; and it contains a large number of pathogens. Currently, most urban sewage treatment plants have not established a stable, resource-based, and harmless sludge treatment model. Sludge is commonly treated on-site through landfilling and incineration, which easily causes secondary pollution to the environment.

[0003] To address the aforementioned problems, for example, Chinese Patent Publication No. CN108862966B discloses a fecal sludge treatment system, including a septic tank, a flocculation box, a storage tank, and a dewatering machine. The flocculation box has a first inlet at its top, a chemical inlet on one side of the first inlet, and an outlet on one side of the flocculation box connected to the storage tank. An aeration assembly is installed inside the flocculation box. The dewatering machine includes a box body, a pressing device inside the box body, and a receiving device below the pressing device. A second inlet is located at the top of the box body, and a water storage chamber is located at the bottom of the box body. An outlet is located on one side of the water storage chamber. The aeration assembly includes an aeration head with a one-way flow component inside. A booster device is located on one side of the flocculation box. The aeration assembly enhances the flocculation effect of the sludge, enabling better flocculation. Sludge deposited at the bottom of the flocculation box is effectively discharged from the bottom of the flocculation box via the booster device, improving sludge treatment efficiency.

[0004] However, in practical use, the above-mentioned invention still has the following drawbacks: fecal sludge contains many impurities, and not all fecal sludge can be processed and reused. It is necessary to classify the fecal sludge before processing it. Therefore, this invention proposes a fecal sludge classification and treatment system to solve the above problems. Summary of the Invention

[0005] This invention proposes a fecal sludge classification and treatment system to solve the problem of classifying and treating fecal sludge.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A fecal sludge sorting and treatment system includes a sludge collection tank, a grit chamber, a sludge sorting and treatment tank, an anaerobic fermentation treatment tank, a biogas slurry concentration treatment tank, and a composting fermentation treatment tank. The sludge sorting and treatment tank, the anaerobic fermentation treatment tank, the biogas slurry concentration treatment tank, and the composting fermentation treatment tank are all connected by pipes. The sludge sorting and treatment tank includes a tank body. A first partition, a second partition, and a third partition are sequentially arranged on the inner side wall of the tank body from top to bottom. One side of the first partition, the second partition, and the third partition are fixedly connected to the tank body. The first partition, the top wall of the tank body, and the side wall of the tank body form a first chamber. The first partition, the second partition, and the side wall of the tank body form a second chamber. The second partition, the third partition, and the side wall of the tank body form a third chamber. The third partition, the solid bottom wall, and the tank side wall form a fourth chamber. A first motor is fixedly installed at the center of the first partition, and a turntable is installed on the output shaft of the first motor. Electromagnetic strips are fixedly installed on both sides of the inner side wall of the tank above the first partition. The first motor is a double-headed motor. A rotating shaft is fixedly connected to the output shaft of the first motor on the side away from the turntable. Several stirring rods are fixedly installed on the rotating shaft. A filter bucket is fixedly connected to the upper surface of the third partition. A water pump is set at the center of the inner side wall of the bottom of the filter bucket. The bottom plate of the filter bucket is a hollow structure and is connected to the water pump. Several water spray holes are opened on the inner side wall of the bottom plate of the filter bucket. A second motor is fixedly installed at the center of the bottom of the tank. A dehydration bucket is coaxially installed on the output shaft of the second motor. Several water outlet holes are opened on the side wall of the dehydration bucket.

[0007] The above scheme achieves the following beneficial effects: During operation, the septic tank collects fecal sludge, which then flows through pipes to the grit chamber. The grit chamber removes large debris from the sludge, thus performing preliminary treatment and preventing excessive large debris from affecting subsequent sludge treatment operations. The pre-treated sludge is then transported to the sludge sorting tank, where it is sorted. The pre-treated sludge is then fed into the first chamber from the top of the sorting tank. The electromagnetic strip is activated, starting the first motor, which drives the turntable to rotate. The motion causes the fecal sludge to rotate. During this motion, metal debris in the fecal sludge is attracted to the electromagnetic strip. After attraction, the first partition opens, allowing the treated fecal sludge to flow into the second chamber. The rotating shaft in the second chamber moves with the first motor, driving the stirring rod. As the stirring rod rotates, it comes into contact with suspended household plastic waste in the fecal sludge, which adheres to it. The second partition then opens, allowing the secondary-treated fecal sludge to flow into the filter bucket. The water pump is activated, drawing water to the bottom of the filter bucket. The water is sprayed out from the spray nozzles, using the principle of anti-gravity to leave small stones and glass in the fecal sludge at the bottom of the filter bucket. The remaining fecal sludge... Overflowing from the top of the sludge flushing filter, the third baffle is opened, and the sludge from the third treatment flows into the dewatering tank. The second motor is started, driving the dewatering tank to rotate at high speed, causing the liquid in the sludge to flow out through the outlet. Too many impurities will affect the fermentation effect in the next step. Then, the liquid separated from the sludge classification tank is transported to the anaerobic fermentation treatment tank. The anaerobic fermentation treatment tank uses anaerobic bacteria and an anaerobic environment to further decompose the organic matter in the separated liquid, producing biogas. The biogas generated can be recycled, thus achieving the initial recycling and resource conversion of manure. After anaerobic fermentation, biogas is produced during the reaction process. This process will also generate a certain amount of biogas slurry, which will then be transported to a biogas slurry concentration treatment tank. The biogas slurry concentration treatment tank mainly uses membrane concentration or other separation equipment to concentrate the nutrients in the low-concentration biogas slurry, achieving a concentration ratio of at least 10 times or more. This reduces the organic matter or pollutants in the concentrated liquid and effectively collects the nutrients in the biogas slurry. The high-concentration concentrated nutrients are added to solid fertilizer for utilization, while the low-concentration concentrated liquid can be directly returned to the field or used as irrigation water or discharged after water treatment in compliance with standards. The solids finally separated from the sludge classification treatment tank are transported to the composting fermentation treatment tank to ferment the solids into compost, thus achieving the initial recovery and resource conversion and utilization of manure.

[0008] Furthermore, the grit chamber is connected to a waste collection tank via a connecting pipe.

[0009] Beneficial effects: The grit chamber will perform preliminary treatment on large waste contained in the sewage. The treated large waste will be transported to the waste pool, where it can store the waste separated from the sewage in a timely manner. According to subsequent needs, the separated waste can be further processed to maximize the utilization of waste. At the same time, the waste storage pool can collect the waste separated from the sewage in a timely manner, which can prevent the excessive amount of large waste separated from the sewage from affecting subsequent sewage treatment operations.

[0010] Furthermore, a filter cover is fitted on the outside of the water pump, and the filter cover is fixedly connected to the filter barrel.

[0011] Beneficial effects: The filter cover is installed on the outside of the water pump to filter out all solids in the fecal sludge, and the water pump draws the liquid from the fecal sludge and delivers it to the bottom plate of the filter bucket.

[0012] Furthermore, several hydraulic cylinders are fixedly installed on both sides of the lower inner wall of the tank. Telescopic shafts are fixedly connected to the hydraulic cylinders, and pressure plates are fixedly connected to the end of the telescopic shafts away from the hydraulic cylinders.

[0013] Beneficial effects: When the dehydration drum rotates and dehydrates, the hydraulic cylinder is activated, and the telescopic shaft on the hydraulic cylinder begins to extend and retract, causing the pressure plate to squeeze the dehydration drum, resulting in more thorough solid-liquid separation.

[0014] Furthermore, the first partition, the second partition, and the third partition are all telescopic structures.

[0015] Beneficial effects: The first, second, and third partitions are all telescopic structures. When the first partition contracts, the treated fecal sludge flows into the second chamber. When the first partition returns to its original position, the metal waste in the fecal sludge remains in the first chamber. When the second partition contracts, the secondary treated fecal sludge flows into the filter bucket. When the second partition returns to its original position, the household plastic waste in the fecal sludge remains in the second chamber. When the third partition contracts, the tertiary treated fecal sludge flows into the dewatering bucket.

[0016] Furthermore, the first, second, and third partitions are all provided with inclined blocks that are fixedly connected to the inner wall of the tank on the side below which they are not connected to the tank body.

[0017] Beneficial effects: The inclined blocks are used to support the first, second, and third partitions, increasing the load-bearing capacity of the partitions, and can also guide the flow of fecal matter.

[0018] Furthermore, the sludge sorting and treatment tank is connected to the anaerobic fermentation treatment tank and the composting fermentation treatment tank respectively through connecting pipes.

[0019] Beneficial effects: After the sludge is treated in the sludge sorting tank, the liquid separated from the sludge sorting tank is transported to the anaerobic fermentation tank. The anaerobic fermentation tank uses anaerobic bacteria and an anaerobic environment to further decompose the organic matter in the separated sludge, producing biogas and biogas slurry. The solids are transported to the composting fermentation tank and fermented into compost. This not only reduces the space occupied by the solids of the sludge and reduces environmental pollution, but also realizes the resource utilization of sludge.

[0020] Furthermore, the anaerobic fermentation treatment pond is connected to a biogas storage tank and a biogas slurry concentration treatment pond via connecting pipes.

[0021] Beneficial effects: Anaerobic fermentation treatment ponds use anaerobic bacteria and an anaerobic environment to decompose the organic matter in the separated liquid to produce biogas. The biogas produced is transported to a biogas storage tank for collection and storage, and can be used for people's daily life and production, such as boiling water and cooking. This can save humans a lot of natural resources such as coal and wood, and the biogas produced after combustion will not pollute the environment, thus achieving the initial recycling and resource conversion and utilization of manure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the fecal sludge classification and treatment system of the present invention.

[0023] Figure 2 This is a cross-sectional view of the sludge sorting and treatment tank of the present invention. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings include: tank body 1, first partition 2, second partition 3, third partition 4, first motor 5, turntable 6, electromagnetic strip 7, rotating shaft 8, stirring rod 9, filter barrel 10, water pump 11, filter cover 12, dehydration barrel 13, second motor 14, hydraulic cylinder 15, telescopic shaft 16, pressure plate 17, inclined block 18.

[0029] Example

[0030] The basics are as follows: Figure 1 and Figure 2 As shown: A fecal sludge sorting and treatment system includes a sludge collection tank, a grit chamber, a sludge sorting and treatment tank, an anaerobic fermentation treatment tank, a biogas slurry concentration treatment tank, and a composting fermentation treatment tank. The sludge sorting and treatment tank, the anaerobic fermentation treatment tank, the biogas slurry concentration treatment tank, and the composting fermentation treatment tank are all connected by pipelines.

[0031] The sludge sorting and treatment tank includes a tank body 1. A first partition 2, a second partition 3, and a third partition 4 are sequentially arranged from top to bottom on the inner wall of the tank body 1. All three partitions (the first, second, and third partitions) are telescopic structures (the first, second, and third partitions of this invention are referenced in the patent: Telescopic Device, Publication No. CN114131650A). One side of each partition is fixedly connected to the tank body 1. The side of each partition that is not connected to the tank body 1 is provided with an inclined block 18 fixedly connected to the inner wall of the tank body 1. The first partition 2, the top wall of the tank body, and the side wall of the tank body 1 form a first chamber; the first partition 2, the second partition 3, and the side wall of the tank body 1 form a second chamber; the second partition 3, the third partition 4, and the side wall of the tank body 1 form a third chamber; and the third partition 4, the solid bottom wall, and the side wall of the tank body 1 form a fourth chamber.

[0032] A first motor 5 is fixedly installed on the fixing plate of the first partition 2. A turntable 6 is coaxially fixedly installed on the output shaft of the first motor 5. Electromagnetic strips 7 are fixedly installed on both sides of the inner wall of the tank 1 above the first partition 2. The first motor 5 is a double-headed motor. The model of the first motor 5 selected in this invention is DSM-82. A rotating shaft 8 is fixedly connected to the output shaft of the first motor 5 on the side away from the turntable 6. Several stirring rods 9 are fixedly installed on the rotating shaft 8. A filter bucket 10 is fixedly connected to the upper surface of the third partition 4. A water pump 11 is set in the center of the inner wall of the bottom of the filter bucket 10. The model of the water pump selected in this invention is QDX1.5-32-0.75. A filter cover 12 is sleeved on the outside of the water pump 11. The filter cover 12 is fixedly connected to the filter bucket 10. The bottom plate of the filter bucket 10 is a hollow structure. The bottom plate of the filter bucket 10 is connected to the water pump 11. Several water spray holes are opened on the inner wall of the bottom plate of the filter bucket 10.

[0033] A second motor 14 is fixedly installed at the center of the bottom of the tank body 1. The model of the second motor 14 selected in this invention is D110M-040030B-E. A dehydration tank 13 is coaxially installed on the output shaft of the second motor 14. Several water outlet holes are opened on the side wall of the dehydration tank 13. Several hydraulic cylinders 15 are fixedly installed on both sides of the lower inner side wall of the tank body 1. The model of the hydraulic cylinder selected in this invention is CX-SD. A telescopic shaft 16 is fixedly connected to the hydraulic cylinder 15. A pressure plate 17 is fixedly connected to the end of the telescopic shaft 16 away from the hydraulic cylinder 15.

[0034] The specific implementation process is as follows: During operation, the septic tank collects fecal sludge. The fecal sludge then flows through pipes to the grit chamber, which removes large debris from the fecal sludge to perform preliminary treatment. This prevents excessive large debris from affecting subsequent fecal sludge treatment operations. The pre-treated fecal sludge is then fed into the first chamber from the top of the sludge sorting tank. The electromagnetic strip 7 is turned on, and the first motor 5 is started. The first motor 5 drives the turntable 6 to rotate, causing the fecal sludge to rotate. During this rotation, metal debris in the fecal sludge is adsorbed onto the electromagnetic strip 7. After adsorption is complete, the first partition 2 retracts, allowing the treated fecal sludge to flow into the second chamber. The first partition 2 returns to its original position, leaving the metal debris in the first chamber.

[0035] The rotating shaft 8 in the second chamber moves with the first motor 5, driving the stirring rod 9 to move. When the stirring rod 9 rotates, it comes into contact with the household plastic waste suspended in the fecal sludge. The household plastic waste will adhere to the stirring rod 9. The second partition 3 retracts, and the secondary-treated fecal sludge flows into the filter bucket 10. The second partition 3 returns to its original position, and the household plastic waste in the fecal sludge remains in the second chamber. The filter cover 12 is fitted outside the water pump 11, filtering out most of the solids in the fecal sludge. The water pump 11 draws the liquid in the fecal sludge and delivers it to the bottom plate of the filter bucket 10. The water pump 11 is started, and the water pump 11 draws water into the bottom of the filter bucket 10. The water sprays out from the spray hole. Using the principle of gravity, the small stones and glass in the fecal sludge remain at the bottom of the filter bucket 10. The remaining fecal sludge overflows from the top of the filter bucket 10. The third partition 4 retracts, and the fecal sludge treated for the third time flows into the dewatering bucket 13.

[0036] The second motor 14 and hydraulic cylinder 15 are started. The second motor 14 drives the dewatering tank 13. The dewatering tank 13 rotates at high speed, causing the liquid in the fecal sludge to flow out from the water outlet. At the same time, the telescopic shaft 16 on the hydraulic cylinder 15 begins to extend and retract, causing the pressure plate 17 to squeeze the dewatering tank 13, making the solid-liquid separation more thorough. After solid-liquid separation, the liquid is transported from the pipe connected to the lower side wall of the tank 1 to the anaerobic fermentation treatment tank, and the solid is transported to the composting fermentation treatment tank.

[0037] The liquid separated from the sludge sorting tank is then transported to an anaerobic fermentation tank. The anaerobic fermentation tank, through anaerobic bacteria and an anaerobic environment, further decomposes the organic matter in the separated sludge, producing biogas. This biogas can be recycled, thus achieving preliminary recovery and resource conversion of manure. During anaerobic fermentation, a certain amount of biogas slurry is also produced. This biogas slurry is then transported to a biogas slurry concentration tank. The concentration tank uses membrane thickening or other separation equipment to concentrate the nutrients in the low-concentration biogas slurry, achieving a concentration ratio of at least 10 times. This reduces the organic matter or pollutants in the concentrated liquid, effectively collecting nutrients. The high-concentration concentrated nutrients are added to solid fertilizer for use, while the low-concentration concentrated liquid can be directly returned to the field or used as irrigation water or discharged after water treatment. The solids finally separated from the sludge sorting tank are transported to a composting fermentation tank, where they are fermented into compost, thus achieving preliminary recovery and resource conversion of manure.

[0038] Example 2 differs from the above examples in that the grit chamber is connected to a garbage pit via a connecting pipe.

[0039] The specific implementation process is as follows: The grit chamber will perform preliminary treatment on the large waste contained in the sewage. The treated large waste will be transported to the waste pit, where the waste separated from the sewage can be stored in a timely manner. According to subsequent needs, the separated waste can be further processed to maximize the utilization of waste. At the same time, the timely collection of waste separated from the sewage by the waste pit can prevent the excessive amount of separated large waste from affecting subsequent sewage treatment operations.

[0040] Example 3 differs from the above examples in that the sludge sorting and treatment tank is connected to an anaerobic fermentation treatment tank via a connecting pipe.

[0041] The specific implementation process is as follows: The liquid flows into the anaerobic fermentation treatment tank. The anaerobic fermentation treatment tank decomposes the organic matter in the separated liquid again through anaerobic bacteria and anaerobic environment to produce biogas. The biogas generated can be recycled and reused, thus realizing the initial recycling and resource conversion of manure. After anaerobic fermentation treatment, a certain amount of biogas slurry will also be produced during the reaction process. The biogas slurry is then transported to the biogas slurry concentration treatment tank. The biogas slurry concentration treatment tank mainly uses membrane concentration or other separation equipment to concentrate the nutrients in the low-concentration biogas slurry, which can reach a concentration ratio of at least 10 times or more, reducing the organic matter or pollutants in the concentrated liquid and effectively collecting the nutrients in the biogas slurry. The high-concentration concentrated nutrients are added to solid fertilizer for use, and the low-concentration concentrated liquid can be directly returned to the field or used as irrigation water or discharged after water treatment to meet standards.

[0042] Example 4 differs from the above examples in that the anaerobic fermentation treatment tank is connected to a biogas storage tank via a connecting pipe.

[0043] The specific implementation process is as follows: The anaerobic fermentation treatment tank decomposes the organic matter in the separated liquid again to produce biogas through anaerobic bacteria and anaerobic environment. The biogas produced is transported to the biogas storage tank, where it is collected and stored for use in people's daily life and production, such as boiling water and cooking. This can save humans a lot of natural resources such as coal and wood, and the biogas produced after combustion will not pollute the environment, thus realizing the initial recycling and resource conversion and utilization of manure.

[0044] Example 5 differs from the above examples in that the sludge sorting and treatment tank is connected to a composting fermentation treatment tank via a connecting pipe.

[0045] The specific implementation process is as follows: Solids are transported to the composting fermentation tank. During the composting fermentation process, environmental parameters such as temperature, humidity and oxygen content in each area of ​​the fermentation tank are monitored and controlled in real time to ensure uniform composting quality and significantly improve the effective components of the fertilizer produced. This not only reduces the space occupied by fecal sludge solids and reduces environmental pollution, but also realizes the resource utilization of fecal sludge.

[0046] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific structures and / or characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A feces sludge classification treatment system comprising a feces collection tank, a grid tank, and a sludge classification treatment tank, characterized by: The sludge sorting and treatment tank is connected to an anaerobic fermentation treatment tank and a composting fermentation treatment tank via connecting pipes. The anaerobic fermentation treatment tank is connected to a biogas storage tank and a biogas slurry concentration treatment tank via connecting pipes. The sludge sorting and treatment tank includes a tank body. A first partition, a second partition, and a third partition are arranged sequentially from top to bottom on the inner side wall of the tank body. The first partition, the second partition, and the third partition are all telescopic structures. One side of the first partition, the second partition, and the third partition is fixedly connected to the tank body. The first partition, the top wall of the tank body, and the side wall of the tank body form a first chamber. The first partition, the second partition, and the side wall of the tank body form a second chamber. The second partition, the third partition, and the side wall of the tank body form a third chamber. The third partition, the bottom wall of the tank body, and the side wall of the tank body form a fourth chamber. A first motor is fixedly installed on the fixed plate of the first partition. A turntable is coaxially fixedly installed on the output shaft of the first motor in the first chamber. Electromagnetic strips are fixedly installed on both sides of the inner wall of the tank above the first partition. The first motor is a double-headed motor. A rotating shaft is fixedly connected to the output shaft of the first motor on the side away from the turntable. Several stirring rods are fixedly installed on the rotating shaft. A filter barrel is fixedly connected to the upper surface of the third partition. A water pump is set in the center of the inner wall of the bottom of the filter barrel. The bottom plate of the filter barrel is a hollow structure and is connected to the water pump. Several water spray holes are opened on the inner wall of the bottom plate of the filter barrel. A second motor is fixedly installed in the center of the bottom of the tank. A dehydration barrel is coaxially installed on the output shaft of the second motor. Several water outlet holes are opened on the side wall of the dehydration barrel.

2. A system for the separate treatment of faecal sludge according to claim 1 characterised in that: The grit chamber is connected to the garbage pit via a connecting pipe.

3. A system for the separate treatment of faecal sludge according to claim 1 characterised in that: A filter cover is fitted on the outside of the water pump, and the filter cover is fixedly connected to the filter barrel.

4. A system for the separate treatment of faecal sludge according to claim 1 characterised in that: Several hydraulic cylinders are fixedly installed on both sides of the inner wall of the fourth chamber at the bottom of the tank. Telescopic shafts are fixedly connected to the hydraulic cylinders, and pressure plates are fixedly connected to the end of the telescopic shaft away from the hydraulic cylinder.

5. A system for the separate treatment of faecal sludge according to claim 1 characterised in that: The first, second, and third partitions each have an inclined block below the side of the tank that is not connected to the tank body, which is fixedly connected to the inner wall of the tank.

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