River and lake sediment resource utilization treatment device

Abstract

The utility model discloses a river and lake sediment resource utilization treatment device. Comprising the steps that a horizontal drainage body and a vertical drainage body or drainage bodies in any direction and a connecting pipeline thereof are arranged in a treatment pond, a multi-dimensional space drainage structure is formed, and the end of the connecting pipeline is connected with an external negative pressure vacuum pump; the negative pressure vacuum pump performs negative pressure vacuumizing on the space drainage structure through the connecting pipeline, and free water and weakly bound water in the bottom mud permeate into the drainage body closest to the seepage path under the action of vacuum negative pressure and are finally discharged through the vacuum pump through the connecting pipeline. According to the method, the seepage path of free water and weakly bound water in the bottom mud is reduced, so that the drainage efficiency is quickly improved, the purpose of efficiently treating the bottom mud is achieved, and meanwhile, the treatment pond can be repeatedly utilized, so that the occupied area is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of river and lake sediment resource utilization technology, specifically to a treatment device for river and lake sediment resource utilization. Background Technology

[0002] River and lake sediments are the product of long-term deposition of fine particles in still or slow-flowing water environments. They can easily cause river siltation, reduction of lake area, encroachment on reservoir capacity, and uplift of waterway bottoms, leading to changes in river morphology, affecting water storage and flood control, and navigation. At the same time, river and lake sediments are also an endogenous source of pollution for polluted water bodies such as black and odorous water bodies.

[0003] With the increasing demands of the people for aquatic environments, the comprehensive management of bottom sediment has become an urgent task. The common method is to use engineering vessels to extract the bottom sediment through sluice or dredging, and then transfer it by hydraulic pumping. However, the amount of bottom sediment work in rivers and lakes is often huge, forming a large-scale mud-water mixture. On the one hand, it requires a large amount of space for placement or landfill, and at the same time, it pollutes the surrounding ecological environment. On the other hand, it also causes a huge waste of resources. How to treat this kind of bottom sediment for subsequent resource utilization is an urgent problem that needs to be solved.

[0004] River and lake sediments are characterized by high water content, low strength, fluidity, and difficulty in transportation. Therefore, the primary task for their resource utilization is solidification treatment. Currently, commonly used solidification methods include natural dehydration and drying, geotextile bags, and mechanical dehydration, but these are expensive and inefficient.

[0005] The current conventional method for solidifying sludge involves first setting up a cofferdam at the sludge dumping site, then laying drainage pipes at the bottom and side walls of the cofferdam. The sludge's own gravity transports the water in the sludge into the drainage pipes. A negative pressure vacuum pump is then connected to one end of the drainage pipes. By applying a negative pressure vacuum to the drainage pipes, the water in the sludge within the cofferdam is discharged along the drainage pipes, thus reducing the water content in the sludge.

[0006] The most representative example of the above-mentioned solutions in actual operation is the utility model patent technology solution with patent application number 201811095041.8 and patent name "Sludge Solidification System". However, this technology solution still has several problems in actual use. First, when designing the size of the cofferdam, since the drainage pipes are laid directly on the bottom and sides of the cofferdam, when the length and width of the cofferdam are designed to be large, the drainage effect is relatively good in the area of ​​the sludge located on the side wall and bottom of the cofferdam near the drainage pipe when sludge is accumulated inside the cofferdam. However, the water in the sludge in the central area of ​​the cofferdam cannot be discharged. This means that the area of ​​the cofferdam must be very small in actual use. According to the physical properties of the bottom mud, the width of the area formed by the cofferdam should not exceed 2 meters. That is, it is necessary to form a strip treatment area with a width of no more than 2 meters and a very large length. Vacuum negative pressure pumping is inefficient and energy-intensive.

[0007] Furthermore, if a large amount of silt needs to be treated, in most areas the conditions are not suitable for forming a long strip of silt. Even using several relatively short strip-shaped cofferdams side-by-side would require a large land area. Therefore, this solution requires a significant amount of land for actual implementation, resulting in high actual operating costs.

[0008] In summary, this solidification system requires the formation of numerous cofferdams, occupies a large amount of land, and its solidification of silt is inefficient and energy-intensive, inevitably leading to high actual usage costs. Consequently, this solution lacks universal applicability and will be gradually phased out.

[0009] In view of the problems encountered in the current process of solidifying river and lake sediment, it is necessary to optimize the solidification method of river and lake sediment in order to facilitate the efficient and convenient treatment of silt for resource utilization. Utility Model Content

[0010] To address the aforementioned technical problems, this utility model provides a treatment device for the resource utilization of river and lake sediment. It features a multi-dimensional spatial drainage system that rapidly improves the drainage efficiency of the silt and facilitates the reuse of drainage components. It is characterized by high treatment efficiency, low energy consumption, and low cost.

[0011] To achieve the above objectives, this utility model provides the following technical solution: a treatment device for the resource utilization of river and lake sediment, including a treatment pool, a waterproof sealing membrane, a vertical drainage body, a horizontal drainage body, a drainage connection pipeline, a negative pressure power system, and other loading facilities;

[0012] A waterproof sealing membrane is laid on the inner wall of the treatment tank. Multiple sets of horizontal drainage bodies are evenly arranged at different heights inside the treatment tank. Several vertical drainage bodies are also evenly arranged inside the treatment tank. Pipes are used to connect the ends of the horizontal and vertical drainage bodies and to the negative pressure power system to form a multi-dimensional spatial drainage structure.

[0013] The negative pressure power system includes a vacuum pump, which provides the pressure difference to create a negative pressure environment and generate the power for water flow.

[0014] The bottom sludge to be treated is poured into the treatment tank, sealed, and then the vacuum pump is turned on to create a vacuum, which drains the water from the bottom sludge and allows it to solidify before reuse.

[0015] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the treatment pool can be excavated in a designated site and its shape can be circular or square. Alternatively, the treatment pool can be formed on the ground by assembly method. The size of the treatment pool is determined according to the amount of bottom sediment to be treated and the site conditions.

[0016] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the waterproof sealing membrane has the function of sealing to isolate water and air, and is laid in the treatment pool and / or on the top of the silt inside the treatment pool to seal the bottom sediment to be treated.

[0017] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the material of the vertical drainage body can be a plastic drainage board or a tubular bagged sand filter pipe. A fixed support is also erected above the treatment pool. The two ends of the fixed support are respectively erected on the ground outside the treatment pool. The drainage body is connected to the fixed position of the fixed support by a traction rope in order to maintain the distance between each drainage body.

[0018] The fixed support is a temporary structure and can be made of low-cost materials with a certain strength, such as bamboo poles.

[0019] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the material of the horizontal drainage body can be plastic drainage board or filter pipe and / or sand layer. The sand layer is only used as the horizontal drainage body at the bottom and top of the treatment pool. The other horizontal drainage bodies in the treatment pool are spatially positioned according to the treatment needs, and the drainage bodies and connecting pipes are pre-assembled and laid according to the determined spatial positions during the bottom sediment filling process.

[0020] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the drainage connection pipeline is used to connect the upper and lower ends of the horizontal drainage body and the left and right ends of the vertical drainage body in series to form two complete water flow channels, and is connected to a vacuum pump to form a multi-dimensional spatial drainage system.

[0021] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, the vacuum pump is the external power for bottom sediment treatment and drainage, which is used to provide vacuum negative pressure to the bottom sediment to be treated, thereby ensuring the discharge of water inside the bottom sediment.

[0022] The other loading facilities may be liquid or solid loads, such as water bags or fill, used to provide additional external force to accelerate the drainage of water from the sediment.

[0023] As a preferred technical solution for the resource utilization and treatment device of river and lake bottom sediment of this utility model, the multi-layer horizontal drainage and multi-column vertical drainage bodies are arranged in a spatially staggered manner to form a multi-dimensional spatial drainage system, which enables the gravity water and weak free water in the bottom sediment to be discharged along the shortest path, greatly improving the drainage efficiency and achieving a significant solidification effect.

[0024] As a preferred technical solution of the river and lake bottom sediment resource utilization and treatment device of this utility model, it includes the following steps:

[0025] Step 1: Form a bottom sediment treatment tank, lay a sealing membrane at the bottom and around the bottom sediment treatment tank, and then install a vertical drainage body fixing bracket in the treatment tank;

[0026] Step 2: Set up the first set of horizontal drainage bodies, connect the horizontal drainage bodies to the drainage pipes, and connect the pipes to the negative pressure vacuum pump;

[0027] Step 3: Set up a vertical drainage body and fix it to the drainage body support using a traction rope;

[0028] Step 4: Fill or pour in a layer of bottom mud, the thickness of which is determined by the drainage calculations done beforehand;

[0029] Step 5: Lay a pre-assembled horizontal drainage system and drainage connection pipes;

[0030] Step Six: Repeat Steps Four and Five until the treatment tank is filled with bottom sediment in this manner;

[0031] Step 7: Remove the vertical drainage support, cover the top of the treatment tank with a sealing membrane to form a complete seal with the sealing membrane from Step 1;

[0032] Step 8: Turn on the vacuum pump to drain the water from the bottom sediment;

[0033] Step 9: Based on the calculation results of the required efficiency of sediment treatment, additional loads, including water bags or fill, can be applied to the sealed treatment tank to accelerate the drainage of water from the sediment.

[0034] Step 10: After the water in the sludge is drained, the treated bottom sludge in the treatment pool can be excavated in stages and transferred to a place or storage site where it needs to be reused. The drainage body and connecting pipes are dismantled while the solidified bottom sludge is being excavated, and can be reused after simple treatment.

[0035] As a preferred construction process for a river and lake sediment resource utilization and treatment device of this utility model, the spatial distance between the horizontal and vertical drainage bodies and the number of drainage bodies are determined by calculation based on the physical and mechanical characteristics of the sediment to be treated, combined with the requirements of treatment efficiency and treatment cost.

[0036] As a preferred technical solution for the construction process of a river and lake sediment resource utilization and treatment device of this utility model, the horizontal drainage body may further include a horizontally arranged main drainage filter pipe and a number of drainage baffles evenly connected on both sides of the main drainage filter pipe. The end of the main drainage filter pipe is connected to an external negative pressure vacuum pump. Several sets of branch drainage filter pipes are evenly arranged on both sides of each main drainage filter pipe. The branch drainage filter pipes and the evenly arranged drainage baffles are arranged in a crisscross pattern.

[0037] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0038] 1. In actual use, this technical solution involves arranging multiple drainage bodies in the horizontal and vertical directions of the sediment treatment tank. A negative pressure vacuum pump is used to pump water from the drainage bodies through the drainage body connection pipes. Free water and weakly bound water inside the sludge permeate into the drainage bodies under external force, converge into the drainage body connection pipes, and are discharged by the vacuum pump. This solution significantly improves the water discharge efficiency in the sediment through the multi-dimensional space drainage pipes, increases the sediment solidification effect, effectively reduces the footprint, and lowers the treatment cost.

[0039] 2. In this technical solution, the drainage bodies other than the sand layer are recyclable. The recyclable drainage bodies include vertical drainage bodies and horizontal drainage bodies. The vertical drainage bodies are pre-positioned and arranged. The horizontal drainage bodies are gradually placed into the treatment tank in layers during the process of filling and accumulating silt in the bottom mud. After the water in the bottom mud is drained, the solidified bottom mud is removed while the corresponding drainage bodies are recycled. After simple treatment, they can be reused. For damaged drainage bodies, new drainage bodies can be added to supplement them.

[0040] 3. By separating the drainage body from the sludge treatment tank, staff can easily inspect and repair the drainage components without having to clean the site before maintenance, resulting in low labor costs and minimal investment. Attached Figure Description

[0041] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the cross-sectional structure of the drainage structure of this utility model;

[0043] Figure 2This is a schematic diagram of the drainage structure of this utility model;

[0044] Figure 3 This is a schematic diagram of the drainage body structure according to another embodiment of the present invention;

[0045] Figure 4 In this utility model Figure 3 A top view of the drainage system in a loosely configured configuration.

[0046] Figure 5 In this utility model Figure 3 A top view of the compact drainage system in the middle;

[0047] Figure 6 In this utility model Figure 3 A schematic diagram of the cross-sectional structure when the drainage system is compactly arranged.

[0048] Figure 7 In this utility model Figure 3 A schematic diagram of the cross-sectional structure when the drainage system is compactly arranged.

[0049] In the diagram: 1. Treatment tank; 2. Sealing membrane; 3. Fixing bracket; 4. Vertical drainage; 5. Horizontal drainage body; 6. Drainage connection pipe; 7. Vacuum pump;

[0050] 51. Main drain filter pipe; 52. Drainage baffle; 53. Branch drain filter pipe; 54. Capillary filter pipe; 55. Capillary filter pipe support; 56. Auxiliary traction rope. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] Example 1

[0053] like Figures 1-2 As shown, the present invention provides a device for the resource utilization and disposal of river and lake bottom sediment, including a treatment tank 1, a waterproof sealing membrane 2, a vertical drainage body 4, a horizontal drainage body 5, a drainage connection pipe 6, a vacuum pump 7, and other loading facilities.

[0054] A waterproof sealing membrane 2 is laid on the inner wall of the treatment tank 1. Multiple sets of horizontal drainage bodies 5 are evenly arranged at different heights inside the treatment tank 1. Several vertical drainage bodies 4 are also evenly arranged inside the treatment tank 1. The ends of the horizontal drainage bodies 5 and the vertical drainage bodies 4 are connected by pipes and connected to the vacuum pump 7 to form a multi-dimensional spatial drainage structure.

[0055] Pour the bottom sludge to be treated into the treatment tank 1, seal it, and then turn on the vacuum pump 7 to draw a vacuum under negative pressure, so that the water inside the bottom sludge is discharged, and the bottom sludge can be solidified and reused.

[0056] Specifically, treatment pool 1 can be formed by excavation at a designated site. Its shape can be circular or square. Alternatively, treatment pool 1 can be formed on the ground by assembly. The size of treatment pool 1 is determined according to the amount of bottom sediment to be treated and the site conditions.

[0057] Specifically, the waterproof sealing membrane 2 serves as a seal to isolate water and air, and is laid inside the treatment tank 1 and / or on top of the sludge inside the treatment tank 1 to seal the bottom sludge to be treated.

[0058] Specifically, the material of the vertical drainage body 4 can be a plastic drainage board or a tubular bagged sand filter pipe. A fixed support 3 is also erected above the treatment tank 1. The two ends of the fixed support 3 are respectively erected on the ground outside the treatment tank 1. The drainage body is connected to the fixed position of the fixed support 3 by a traction rope in order to maintain the distance between each drainage body.

[0059] The fixed support 3 is a temporary structure, and low-cost materials with a certain strength, such as bamboo poles, can be selected.

[0060] Specifically, the material of the horizontal drainage body 5 can be plastic drainage board or filter pipe and / or sand layer. The sand layer is only used for the horizontal drainage body at the bottom and top of the treatment tank. The spatial position of other horizontal drainage bodies in the treatment tank is determined according to the treatment needs, and the drainage bodies and connecting pipes are pre-assembled and laid according to the determined spatial position during the filling of bottom mud.

[0061] Specifically, the drainage connection pipe 6 is used to connect the upper and lower ends of the horizontal drainage body 5 and the left and right ends of the vertical drainage body 4 in series to form two complete water flow channels, and is connected to the vacuum pump 7 to form a multi-dimensional spatial drainage system.

[0062] Specifically, vacuum pump 7 is the external power source for the drainage of bottom sediment treatment, used to provide vacuum negative pressure to the bottom sediment to be treated, thereby ensuring the drainage of water inside the bottom sediment;

[0063] Other loading devices can be liquid or solid loads, such as water bags or fill, to provide additional external force to accelerate the drainage of water from the sediment.

[0064] Specifically, this technical solution includes the following steps: Step 1: Form a bottom sediment treatment tank 1, lay a sealing membrane 2 at the bottom and around the bottom sediment treatment tank 1, and then set a fixing bracket 3 in the treatment tank 1 for fixing the vertical drainage body 4.

[0065] Step 2: Set up the first set of horizontal drainage bodies 5, connect the horizontal drainage bodies 5 to the drainage connection pipe 6, and connect the pipe to the negative pressure vacuum pump 7;

[0066] Step 3: Install the vertical drainage body 4 and fix it to the fixed bracket 3 with a traction rope;

[0067] Step 4: Fill or pour in a layer of bottom mud, the thickness of which is determined by the drainage calculations done beforehand;

[0068] Step 5: Lay a set of pre-assembled horizontal drainage bodies 5 and drainage connection pipes 6;

[0069] Step Six: Repeat Steps Four and Five until the treatment tank 1 is filled with bottom sludge in this manner;

[0070] Step 7: Remove the support of the vertical drainage body 5, and seal the top of the treatment tank with the waterproof sealing membrane 2, forming an overall seal with the waterproof sealing membrane 1 in Step 1.

[0071] Step 8: Turn on vacuum pump 7 to pump out the water from the bottom mud;

[0072] Step 9: Based on the calculation results of the required efficiency of sediment treatment, additional loads, including water bags or fill soil, can be applied to the sealed treatment tank 1 to accelerate the discharge of water from the sediment.

[0073] Step 10: After the water in the sludge is drained, the treated bottom sludge in treatment pool 1 can be excavated in stages and transferred to a place or storage site where it needs to be reused. The drainage body and connecting pipes are dismantled while the solidified bottom sludge is being excavated, and can be reused after simple treatment.

[0074] The spatial distance between the horizontal drainage body 5 and the vertical drainage body 4, as well as the number of drainage bodies, are determined by calculation based on the physical and mechanical characteristics of the sediment being treated, combined with the requirements for treatment efficiency and cost.

[0075] Example 2

[0076] like Figures 3-7As shown, in the river and lake bottom sediment resource utilization and treatment device disclosed in this utility model, the horizontal drainage body 5 may further include a horizontally arranged main drainage filter pipe 51 and several drainage baffles 52 evenly connected on both sides of the main drainage filter pipe 51. The end of the main drainage filter pipe 51 is connected to an external negative pressure vacuum pump 7. Several sets of branch drainage filter pipes 53 are evenly arranged on both sides of each main drainage filter pipe 51. The branch drainage filter pipes 53 and the evenly arranged drainage baffles 52 are arranged in a crisscross pattern, and the drainage baffles 52 are connected and fixed to the branch drainage filter pipes 53 to maintain the structural stability of the branch drainage filter pipes 53. The function of the drainage baffles 52 is to improve the structural strength of the drainage body while guiding the drainage, so that when the drainage body is separated from the silt, the remaining components can be carried away and separated from the silt together.

[0077] The branch drainage filter pipe 53 can be connected to an external negative pressure vacuum pump; the drainage body can be evenly arranged in multiple layers in the vertical direction inside the sludge treatment tank. In this technical solution, the drainage body is arranged in layers with a spacing of 0.5M, which makes it easier for the drainage body to be separated from the sludge.

[0078] Specifically, the drainage baffles 52 on both sides of the main drainage filter pipe 51 form a V-shaped angle. The main drainage filter pipe 51 is set at the bottom of the V-shaped angle for drainage. Several groups of drainage bodies are evenly arranged in the horizontal direction inside the sludge treatment tank. Multiple groups of drainage bodies can be combined and connected in the horizontal direction to form an integrated structure. They are compactly arranged inside the sludge treatment tank. In this embodiment, the staff can set the density of the drainage bodies according to their own needs.

[0079] Specifically, the top of the drainage baffle 52 is also connected to a traction auxiliary rope 56. The traction auxiliary rope 56 is used to keep the spacing of each group of drainage baffles 52 consistent, and to pull each drainage baffle 52 when it is separated from the silt. In this embodiment, when it is necessary to separate the drainage body from the silt, it is only necessary to use the excavator arm to hook the traction auxiliary rope 56 and pull out the remaining components together.

[0080] Specifically, capillary filter tube supports 55 are arranged in parallel between several drainage baffles 52. The capillary filter tube supports 55 are also arranged in a V-shape in the drainage body. Several sets of capillary filter tubes 54 are also laid horizontally between the V-shaped capillary filter tube supports 55. In this embodiment, the capillary filter tubes 54 are used to further divide the sludge, so that the sludge in each section can be drained quickly.

[0081] Specifically, the drainage baffles 52 on both sides of the main drainage filter pipe 51 can be set on the same plane. In this embodiment, the staff can adjust the included angle of the drainage baffles 52 according to their own needs to facilitate the laying of the drainage body.

[0082] Specifically, the laying of the horizontal drainage body 5 can be carried out in the following steps: Step 1: First, set a sealing membrane at the bottom and around the sludge treatment tank, lay a layer of drainage body in the treatment tank, connect the end of the main drainage filter pipe 51 to the negative pressure vacuum pump through the pipe, and then pile up a layer of sludge.

[0083] Step 2: Pull the auxiliary traction rope 56 to make the included angle of the drainage baffle 52 in the drainage body set in a V-shaped structure, maintain the tension on the auxiliary traction rope 56, then install the capillary filter tube support 55, and evenly set several capillary filter tubes 54 on the capillary filter tube support 55 to continue to accumulate silt, so that the silt submerges the drainage body.

[0084] Step 3: Repeat steps 1 and 2, setting up multiple sets of drainage bodies in the vertical sludge to fill the treatment tank with sludge.

[0085] Step 4: Lay a sealing membrane on top of the silt as a sealing layer. External forces, including vacuum negative pressure, water pressure on the membrane, and soil pressure, can be applied to the slurry.

[0086] Step 5: During vacuum pump operation, free water and some weakly bound water in the sludge are discharged;

[0087] Step Six: After the water in the sludge is drained, external force is applied to pull the auxiliary pull rope 56. The auxiliary pull rope 56 drives the drainage baffle 52, the main drainage filter pipe 51, the branch drainage filter pipe 53, and the capillary filter pipe support 55 to move synchronously, so that the drainage body is pulled out of the sludge treatment pool. Then, the sludge is transferred and transported by excavation equipment.

[0088] Specifically, the drainage baffle 52 is made of permeable porous rigid plastic or corrosion-resistant metal. The drainage baffle 52 is tied to the traction rope 56 and simultaneously tied to various components in the drainage body to further improve structural stability.

[0089] The above description is only a preferred embodiment of the present utility model and is not intended to further limit the present utility model. All equivalent changes made based on the description and drawings of the present utility model are within the protection scope of the present utility model.

Claims

1. A device for the resource utilization and treatment of river and lake bottom sediment, characterized in that, It includes a treatment tank (1), a waterproof sealing membrane (2), a vertical drainage body (4), a horizontal drainage body (5), drainage connection pipes (6), a negative pressure power system, and other loading facilities; A waterproof sealing membrane (2) is laid on the inner wall of the treatment tank (1). Multiple sets of horizontal drainage bodies (5) are uniformly arranged at different heights inside the treatment tank (1). Several vertical drainage bodies (4) are also uniformly arranged inside the treatment tank (1). The ends of the horizontal drainage bodies (5) and the vertical drainage bodies (4) are connected by pipes and connected to the negative pressure power system to form a multi-dimensional spatial drainage structure. The negative pressure power system includes a vacuum pump (7) to provide a pressure difference in a negative pressure environment, thereby generating the power for water flow; Pour the bottom mud to be treated into the treatment tank (1), seal it, and turn on the vacuum pump (7) to draw a vacuum under negative pressure, so that the water inside the bottom mud can be discharged and the bottom mud can be solidified and reused.

2. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The treatment pool (1) can be formed by excavation at a designated site. Its shape can be circular or square. Alternatively, the treatment pool (1) can be formed on the ground by assembly. The size of the treatment pool (1) is determined according to the amount of bottom sediment to be treated and the site conditions.

3. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The waterproof sealing membrane (2) is a sealing function that isolates water and air. It is laid inside the treatment tank (1) and / or on top of the sludge inside the treatment tank (1) to seal the bottom mud to be treated.

4. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The material of the vertical drainage body (4) can be a plastic drainage board or a tubular bagged sand filter pipe. A fixed support (3) is also erected above the treatment tank (1). The two ends of the fixed support (3) are respectively erected on the ground outside the treatment tank (1). The drainage body is connected to the fixed position of the fixed support (3) by a traction rope in order to maintain the distance between each drainage body. The fixed support (3) is a temporary structure and can be made of low-cost materials with a certain strength, such as bamboo poles.

5. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The material of the horizontal drainage body (5) can be plastic drainage board or filter pipe and / or sand layer. The sand layer is only used for the horizontal drainage body at the bottom and top of the treatment tank. The other horizontal drainage bodies in the treatment tank are located according to the treatment needs. The drainage bodies and connecting pipes are assembled in advance and laid in the determined spatial position during the filling of bottom mud.

6. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The drainage connection pipe (6) is used to connect the upper and lower ends of the horizontal drainage body (5) and the left and right ends of the vertical drainage body (4) in series to form two complete water flow channels, and is connected to the vacuum pump (7) to form a multi-dimensional spatial drainage system.

7. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The vacuum pump (7) is the external power source for the drainage of the treated sediment. It is used to provide vacuum negative pressure to the treated sediment, thereby ensuring the discharge of water from the sediment. The other loading facilities may be liquid or solid loads, such as water bags or fill, used to provide additional external force to accelerate the drainage of water from the sediment.

8. The device for resource utilization and treatment of river and lake sediment according to claim 1, characterized in that: The horizontal drainage body (5) may also include a horizontally arranged main drainage filter pipe (51) and several drainage baffles (52) evenly connected on both sides of the main drainage filter pipe (51). The end of the main drainage filter pipe (51) is connected to an external negative pressure vacuum pump (7). Several sets of branch drainage filter pipes (53) are evenly arranged on both sides of each main drainage filter pipe (51). The branch drainage filter pipes (53) and the evenly arranged drainage baffles (52) are arranged in a crisscross pattern.

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