Black and odorous water body sediment in-situ remediation device and remediation system

Abstract

The invention discloses a black and odorous water body bottom mud in-situ remediation device and remediation system, and relates to the technical field of sludge treatment equipment.The black and odorous water body bottom mud in-situ remediation device comprises a remediation assembly and a remediation body, the remediation assembly comprises multiple sections of splicing pieces, the multiple sections of splicing pieces are detachably connected, and the remediation body comprises a bag body and a reactant arranged in the bag body; the bag body is detachably arranged on at least one splicing piece, and the reactant can be in contact with the bottom mud when the splicing pieces are inserted into the bottom mud. Due to the fact that the multiple splicing pieces are detachably connected, the bag bodies can be installed on the corresponding splicing pieces according to the depth of the bottom mud to be treated, the bag bodies can reach the position of the bottom mud to be treated after the multiple splicing pieces are inserted into sewage, and the accuracy of repairing the bottom mud can be improved. In addition, the bag bodies can be installed on the multiple splicing pieces at the same time, and the same or different reactants can be installed in each bag body, so that bottom mud with different depths can be repaired at the same time, and the repairing efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment equipment, and particularly relates to an in-situ remediation device and a remediation system for the sediment of black and odorous water bodies. Background Art

[0002] At present, the common sediment remediation technologies at home and abroad include two major categories: "ex-situ remediation technology" and "in-situ remediation technology". Ex-situ remediation refers to a technical means of removing sediment from a river or lake reservoir by physical machinery and performing solidification landfill or physical, chemical, and biological re-treatment. In-situ remediation is a remediation method that directly treats the polluted river sediment in-situ through physical, chemical, or biological technologies.

[0003] Currently, the sediment remediation usually first measures the depth of the sediment to be remediated, then installs the bacteria for sediment remediation at a suitable height in the sediment remediation device, and inserts the sediment remediation device into the sewage so that the bacteria reach the position of the sediment to be remediated to remediate the sediment. However, the sediment remediation device can only install the bacteria at a fixed position and can only remediate the sediment at a certain specific depth at a time, resulting in low remediation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, and propose an in-situ remediation device and a remediation system for the sediment of black and odorous water bodies, so as to solve the technical problem that in the prior art, the sediment remediation device can only install the bacteria at a fixed position and can only remediate the sediment at a certain specific depth at a time, resulting in low remediation efficiency.

[0005] To achieve the above technical purpose, the present invention adopts the following technical solutions: In a first aspect, the present invention provides an in-situ remediation device for the sediment of black and odorous water bodies, including: A remediation component, including multiple splicing members, and the multiple splicing members are detachably connected; and A remediation body, including a capsule body and a reactant provided on the capsule body, the capsule body is detachably provided on at least one of the splicing members, and the reactant can contact the sediment when the splicing member is inserted into the sediment.

[0006] In some embodiments, one end of the splicing member protrudes with a stud, the stud has an external thread, and the inner wall of the other end of the splicing member has an internal thread, and two adjacent splicing members are connected by the external thread and the internal thread.

[0007] In some embodiments, the remediation component further includes a guiding plug, one end of the guiding plug is detachably connected to the splicing member, and the other end is tapered.

[0008] In some embodiments, the repair component further includes an aeration pipe. The splicing member is hollow with openings at both ends. Aeration holes are formed in the side wall of the splicing member. The aeration pipe is connected to the splicing member and can perform aeration through the aeration holes.

[0009] In some embodiments, there are multiple aeration holes. The multiple aeration holes are arranged at intervals along the length extension direction of the splicing member. In the direction from the aeration pipe to the splicing member, the apertures of the multiple aeration holes increase in sequence.

[0010] In some embodiments, there are multiple repair bodies. The multiple repair bodies and the multiple aeration holes are arranged on the same straight line and alternately at intervals.

[0011] In some embodiments, a receiving groove is formed in the outer wall of the splicing member. The wall of the receiving groove has a clamping flange. A clamping groove is formed in the outer wall of the bladder. The clamping groove and the clamping flange are detachably clamped.

[0012] In some embodiments, the repair component further includes a protective film. The protective film is hermetically connected to the splicing member and covers the bladder.

[0013] In a second aspect, the present invention further provides a repair system, which is characterized by including a connecting member and multiple above-mentioned in-situ black-odor water body sediment repair devices. The connecting member connects the multiple in-situ black-odor water body sediment repair devices.

[0014] In some embodiments, the repair system further includes an aerator. The splicing member is hollow with openings at both ends and aeration holes are formed in its outer wall. The connecting member communicates with all the splicing members. The aerator is connected to the connecting member and can perform aeration on all the aeration holes through the connecting member.

[0015] Compared with the prior art, the in-situ black-odor water body sediment repair device provided by the present invention has a bladder that can be installed on the splicing member. When the splicing member is inserted into the sediment, the reactants on the bladder can contact the sediment and react to degrade the sediment. Since the multiple splicing members are detachably connected, the bladder can be installed on the corresponding splicing member according to the depth of the sediment to be treated, so that after the multiple splicing members are inserted into the sewage, the bladder can reach the position of the sediment to be treated, and the reactants inside the bladder contact the sediment, which is beneficial to improving the accuracy of sediment repair. In addition, bladders can be installed on multiple splicing members at the same time, and each bladder can be installed with the same or different reactants, so as to facilitate the simultaneous repair of sediments at different depths with high repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the in-situ black-odor water body sediment repair device according to an embodiment of the present invention; Figure 2 is a schematic structural view of the in-situ sediment remediation device for black and odorous water bodies according to another embodiment of the present invention; Figure 3 is a schematic structural view of the in-situ sediment remediation device for black and odorous water bodies according to another embodiment of the present invention; Figure 4 is a disassembled schematic view of the in-situ sediment remediation device for black and odorous water bodies according to an embodiment of the present invention; Figure 5 is a schematic structural view of the repair body provided by an embodiment of the present invention; Figure 6 is a schematic structural view of the installation of the repair body on the splicing member provided by an embodiment of the present invention; Figure 7 is a schematic structural view of the fixing of the repair system in the sediment according to an embodiment of the present invention; Figure 8 is a schematic structural view of the repair system according to another embodiment of the present invention; Figure 9 is a schematic structural view of the repair system according to another embodiment of the present invention. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In order to solve the technical problem in the prior art that the sediment remediation device can only install strains at a fixed position and can only remediate the sediment at a certain specific depth at a time, resulting in low remediation efficiency, the present invention provides an in-situ sediment remediation device for black and odorous water bodies, which can achieve the remediation of the sediment at a preset depth, has high precision in sediment remediation, and can install capsules on multiple splicing members at the same time to remediate the sediment at different depths simultaneously, with high remediation efficiency.

[0019] It should be noted that the in-situ sediment remediation device for black and odorous water bodies described in the present invention is used for but not limited to remediating sediment, etc. For the convenience of description, in the present invention, only the case where the in-situ sediment remediation device for black and odorous water bodies is applied to remediate sediment is taken as an example for description, and the principle of the in-situ sediment remediation device for black and odorous water bodies applied to other types of equipment is essentially the same as that applied to remediate sediment, which will not be elaborated here one by one.

[0020] Please refer to Figure 1 , Figure 1The figure is a schematic structural diagram of the in-situ sediment remediation device for black and odorous water bodies in an embodiment of the present invention. The in-situ sediment remediation device 100 for black and odorous water bodies includes a remediation component 1 and a remediation body 2. The remediation component 1 includes multiple sections of splicing members 11, and the multiple sections of splicing members 11 are detachably connected. The remediation body 2 includes a bladder 21 and a reactant 22 provided on the bladder 21. The bladder 21 is detachably provided on at least one splicing member 11. The reactant 22 can come into contact with the sediment when the splicing member 11 is inserted into the sediment and react with the sediment to degrade harmful substances in the sediment.

[0021] In this embodiment, the splicing member 11 mainly acts as a carrier to carry the remediation body 2, so that when the splicing member 11 is inserted into the sediment, it can transport the remediation body 2 to the position of the sediment to be treated. The remediation body 2 releases the reactant 22, and the reactant 22 comes into contact with and reacts with the sediment to degrade the sediment.

[0022] The reactant 22 can be customized according to the sediment to be remediated. Commonly used reactants 22 mainly include photosynthetic bacteria, spore bacteria, or denitrifying bacteria, etc. Photosynthetic bacteria can degrade toxic substances such as nitrite and sulfide in the sediment, can also utilize a large amount of ammonia nitrogen in the sewage, effectively avoid the occurrence of "water blooms", can also tolerate high-concentration organic wastewater, and have a certain tolerance and decomposition ability for poisons such as phenol and cyanide, and have a strong decomposition and transformation ability. In the remediation of river sediment, it can reduce harmful substances in the water body, improve the ecological environment of the sediment, and promote the restoration of the sediment ecosystem. Spore bacteria have strong resistance to external harmful factors and are widely distributed. They can treat industrial wastewater and degrade toxic substances in the environment; the extracellular polysaccharides and extracellular proteins produced can be used as flocculants to treat sewage. Spore bacteria can be used to remediate contaminated sediment, and by degrading toxic substances and flocculation, improve the physical and chemical properties of the sediment and enhance the stability of the sediment.

[0023] Therefore, the corresponding reactant 22 can be selectively used according to the characteristics of the sediment, and the reactant 22 is sent into the sediment through the splicing member 11 to remediate the sediment. The depth of the sediment can be measured in advance, and then the length of each section of the splicing member 11 is calculated. By connecting the multiple sections of splicing members 11 end to end in sequence and installing the remediation body 2 on the corresponding splicing member 11, when the multiple sections of splicing members 11 are inserted into the sewage, the remediation body 2 can reach the sediment to be remediated, which is beneficial to improving the accuracy of sediment remediation. For example, Figure 1 in the shown embodiment, the number of splicing members 11 is one, Figure 2 in the shown embodiment, the number of splicing members 11 is two, Figure 3In the illustrated embodiment, the number of the splicing members 11 is three. In other embodiments, the number of the splicing members 11 can also be four or more. When the number of the splicing members 11 is multiple, the repair body 2 can be selectively installed on one or more of the splicing members 11, so that the splicing members 11 can bring the repair body 2 into the sediment to be repaired. The splicing members 11 without the repair body 2 installed can play a bridging role, so as to facilitate the insertion of the splicing members 11 with the repair body 2 into the sediment to be repaired.

[0024] In addition, the repair body 2 can also be installed on multiple sections of the splicing members 11 at the same time. The reactants 22 included in the repair bodies 2 on multiple sections of the splicing members 11 can be the same or different. The pollution degree of the sediment at different heights can be detected in advance, and different reactants 22 can be installed on multiple sections of the splicing members 11. When multiple splicing members 11 are inserted into the sediment, multiple reactants 22 can repair the sediment at different depths at the same time, which is beneficial to improving the repair efficiency of the sediment and the targeted repair of the sediment with different pollution degrees.

[0025] In one of the embodiments, please refer to Figure 4 , a stud 111 is convexly provided at one end of the splicing member 11. The stud 111 has an external thread, and the inner wall of the other end of the splicing member 11 has an internal thread (not shown in the figure). Two adjacent splicing members 11 are connected by the external thread and the internal thread. In this embodiment, two adjacent splicing members 11 are detachably connected through the thread fit of the external thread and the internal thread, which can not only improve the sealing performance between adjacent splicing members 11, but also improve the connection stability between adjacent splicing members 11. In addition, after two adjacent splicing members 11 are threadedly connected, the outer walls of the two splicing members 11 are flush, so that when multiple splicing members 11 are inserted into the sediment, the sediment can be evenly stressed, and multiple splicing members 11 can be inserted into the sediment more smoothly. In other embodiments, two adjacent splicing members 11 can also be connected by other detachable methods such as snap connection.

[0026] In one of the embodiments, please refer to Figures 1 to 4 , the repair assembly 1 further includes a guiding plug 12. One end of the guiding plug 12 is detachably connected to the splicing member 11, and the other end is tapered. In this embodiment, during the process of inserting into the sediment, with the tapered end of the guiding plug 12 facing the sediment and the repair assembly 1 moving towards the sediment, the guiding plug 12 enters the sediment first, and can smoothly insert into the sediment, improving the efficiency of the repair assembly 1 entering the sediment.

[0027] In one of the embodiments, please refer to Figures 1 to 4, the repair component 1 further includes an aeration pipe 13. The splicing part 11 is hollow with openings at both ends. An aeration hole 112 is formed in the side wall of the splicing part 11. The aeration pipe 13 is connected to the splicing part 11 and can aerate through the aeration hole 112. In this embodiment, the inside of the splicing part 11 is hollow, and the aeration hole 112 penetrates the side wall of the splicing part 11 so that the gas inside the splicing part 11 can be discharged through the aeration hole 112. The end of the aeration pipe 13 away from the splicing part 11 has an air inlet 131 for connecting an aerator. When the aeration pipe 13 is connected to the aerator through the air inlet 131, the splicing part 11 is inserted into the bottom mud, the aeration hole 112 is located in the bottom mud, and the aerator aerates through the aeration pipe 13 and the aeration hole 112. The gas combines with the reactant 22, which is beneficial to improving the reaction efficiency of the bottom mud.

[0028] In one embodiment, please refer to Figures 1 to 4 , there are multiple aeration holes 112, and the multiple aeration holes 112 are arranged at intervals along the length extension direction of the splicing part 11. In the direction from the aeration pipe 13 to the splicing part 11, the apertures of the multiple aeration holes 112 increase in sequence. In this embodiment, by arranging multiple aeration holes 112 on the splicing part 11, it is beneficial to improve the aeration efficiency and the degradation efficiency of the bottom mud. In addition to being arranged at intervals along the length extension direction of the splicing part 11, the multiple aeration holes 112 can also be arranged along the circumferential direction of the splicing part 11 at the same time, so as to further increase the number of aeration holes 112 and further improve the aeration efficiency.

[0029] In addition, the aeration hole 112 with a larger aperture is closer to the bottom mud. The aperture of the aeration hole 112 is smaller, and the corresponding aeration volume is also smaller, which can effectively prevent the top sludge from turning over and reducing the water body landscape effect; the aperture of the aeration hole 112 in the middle part of the splicing part 11 is moderate, and the aeration volume is moderate, which can effectively transition the difference in the aeration volume up and down. The aperture of the aeration hole 112 in the lower section of the splicing part 11 is larger, and the aeration volume is larger, which can effectively improve the aeration effect of the bottom sludge and increase the dissolved oxygen content.

[0030] In one embodiment, please refer to Figures 1 to 4 , there are multiple repair bodies 2, and the multiple repair bodies 2 and the multiple aeration holes 112 are arranged on the same straight line and alternately at intervals. In this embodiment, the reactant 22 released by the repair body 2 can combine with the gas discharged from the aeration hole 112, which is beneficial to improving the degradation efficiency of the reactant 22 on the bottom mud. In this embodiment, the multiple repair bodies 2 and the multiple aeration holes 112 are arranged on the same straight line and alternately at intervals, so that the reactant 22 can fully and evenly combine with the gas discharged from the aeration hole 112, and the reactant 22 can react with the bottom mud more fully and degrade the bottom mud.

[0031] In one embodiment, please refer to Figure 6, a receiving groove 113 is formed on the outer wall of the splicing member 11, and a clamping flange 114 is provided on the groove wall of the receiving groove 113. A clamping groove 211 is formed on the outer wall of the capsule 21, and the clamping groove 211 is detachably clamped with the clamping flange 114. In this embodiment, the capsule 21 is mainly used to wrap the reactant 22 to prevent the reactant 22 from overflowing before contacting the bottom mud. The capsule 21 is clamped to the clamping flange 114 of the receiving groove 113 through the clamping groove 211, so as to facilitate the fixation of the capsule 21. The detachable clamping method also facilitates the disassembly and assembly of the capsule 21, which is convenient to use. In other embodiments, a clamping flange may also be provided on the side wall of the capsule 21, and a clamping groove may be formed on the groove wall of the receiving groove 113, and the capsule 21 can also be clamped and fixed to the receiving groove 113.

[0032] In addition, the capsule 21 is generally spherical and is mainly made of materials such as ceramsite and zeolite, making the surface of the capsule 21 relatively rough. The capsule 21 is provided with clamping grooves 211 on both sides to facilitate the installation and disassembly of the capsule 21 on the surface of the splicing member 11. The capsule 21 needs to be pre-coated with a film and inoculated before inlay installation. The specific operation method is to go to the corresponding structure of the sewage treatment plant where the required bacteria are located according to the type of bacteria required, and put the capsule 21 into the structure. Since the surface of the capsule 21 is relatively rough, it can provide a suitable attachment site for the bacteria. It can be successfully coated with a film and inoculated in about fifteen days. At this time, the capsule 21 is smoother than before the film coating and can move smoothly in the bottom mud and come into full contact with the bottom mud 8. With the cooperation of aeration, the spherical capsule 21 can rotate in the clamping groove 211 so that the reactant 22 on the surface of the capsule 21 can come into full contact with the bottom mud, and the reactant 22 on the entire capsule 21 can play a role, and basically there will be no dead corners.

[0033] In one of the embodiments, please refer to Figure 6 , the repair assembly 2 further includes a protective film 23, and the protective film 23 is hermetically connected to the splicing member 11 and covers the capsule 21. In this embodiment, the main material of the protective film 23 is a polyvinyl alcohol (PVA) water-soluble plastic film. This film does not dissolve or leak in a normal temperature and anhydrous environment, and does not break in a dry environment. However, it can dissolve in water within a certain time (about ten minutes). After the protective film 23 dissolves, the capsule 21 contacts the bottom mud, and the bacteria on the surface of the capsule 21 react with the bottom mud to degrade the bottom mud. In addition, as a new type of environmental protection material, the PVA material can be quickly degraded into carbon dioxide and water after dissolving in water, and will not cause secondary pollution to the environment.

[0034] In the second aspect, please refer to Figure 7The present invention also provides a repair system 200, including a connector 3 and a plurality of the above-mentioned black and odorous water body sludge in-situ repair devices 100, wherein the connector 3 connects the plurality of repair devices 100. The connector 3 in this embodiment can be used to connect the plurality of repair devices 100 to fix the plurality of repair devices 100, so that the plurality of repair devices 100 can be inserted into the sludge at the same time to degrade the sludge, thereby effectively improving the degradation efficiency of the sludge. Figures 1 to 3 It can be seen that the end of the aeration pipe 13 of the repair device 100 away from the splicing piece 11 is provided with a plurality of connecting holes 132 along its circumference, and each connecting hole 132 can be detachably plugged into the connecting piece 3, so the repair device 100 can be plugged into the plurality of connecting pieces 3 along its circumference through the plurality of connecting holes 132, and then plugged into other repair devices 100 through the plurality of connecting pieces 3, so that the plurality of repair devices 100 are connected through the connecting pieces 3, thereby expanding the number of repair devices 100 and improving the efficiency of repairing the bottom mud.

[0035] The multiple repair devices 100 are connected by the connecting piece 3, and the number of the splicing pieces 11 included in each repair device 100 can be inconsistent, that is, the heights of the multiple repair devices 100 can be inconsistent, so that the multiple repair devices 100 are suitable for repairing the bottom mud 8 at different terrain heights, and are flexible to use and highly compatible. In addition, the splicing piece 11 is cylindrical and can be connected with the guide plug 12 and the aeration pipe 13 to form a standard prefabricated part, which is convenient for storage and management.

[0036] In one embodiment, see Figure 8 and Figure 9 The repair system 200 also includes an aerator 4 and an air pipe 7. The splicing piece 11 of the repair device 100 is hollow with openings at both ends and an aeration hole 112 is provided on its outer wall. The air pipe 7 of this embodiment is connected to multiple repair devices 100 at the same time. The aerator 4 is connected to the air inlet of the air pipe 7 and can aerate the aeration holes 112 of all the repair devices 100 through the air pipe 7. In addition, the air pipe 7 of this embodiment is connected to the air inlet 131 of multiple repair devices 100 at the same time. The air pipe can not only transport gas to all the repair devices 100, but also support all the repair devices 100, so that the multiple repair devices 100 remain relatively fixed, are stably installed in the bottom mud 8, and are not easy to tip over. The multiple repair devices 100 can stably repair the bottom mud.

[0037] In one embodiment, see Figure 8 and Figure 9, the repair system 200 further includes a floating boat 5 and a solar panel 6. The solar panel 6 and the above-mentioned aerator 4 are both provided on the floating boat 5. The solar panel 6 is connected to the aerator 4 and is used to supply power to the aerator 4 through solar energy so that the aerator 4 can work properly. The floating boat 5 can be used to carry the repair device 100 and move the repair device 100 to the position of the sediment to be treated. During the day, the solar panel 6 supplies power to the aerator 4 by absorbing solar energy, and the aerator 4 can be used for aeration to supply oxygen to the reactant 22 on the surface of the bladder 21 to perform aerobic treatment. At night, the aerator 4 stops working and stops supplying oxygen to the reactant 22 so that the reactant 22 can perform anaerobic treatment.

[0038] For a better understanding of the present invention, the following will be combined with Figures 1 to 9 to describe the technical solution of the present invention in detail: The bladder 21 of the in-situ sediment repair device 100 provided by the present invention can be installed on the splicing member 11. When the splicing member 11 is inserted into the sediment, the reactant 22 inside the bladder 21 can contact the sediment and react to degrade the sediment. Since the plurality of splicing members 11 are detachably connected, the bladder 21 can be installed on the corresponding splicing member 11 according to the depth of the sediment to be treated, so that after the plurality of splicing members 11 are inserted into the sewage, the bladder 21 can reach the position of the sediment to be treated, and the reactant 22 inside the bladder 21 contacts the sediment, which is beneficial to improving the accuracy of sediment repair. In addition, the bladder 21 can also be installed on a plurality of splicing members 11 at the same time, and the same or different reactants can be installed inside each bladder 21, so as to facilitate the simultaneous repair of sediments at different depths and with high repair efficiency.

[0039] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An in-situ remediation device for black and odorous water body sediment, characterized in that, Comprising: A repair component, including multiple spliced parts, and the multiple spliced parts are detachably connected; And A repair body, including a capsule and a reactant provided in the capsule, the capsule is detachably provided on at least one of the spliced parts, and the reactant can contact the bottom mud when the spliced part is inserted into the bottom mud.

2. The in-situ remediation device for black and odorous water body sediment according to claim 1, characterized in that, One end of the spliced part protrudes with a stud, the stud has an external thread, and the inner wall of the other end of the spliced part has an internal thread, and two adjacent spliced parts are connected by the external thread and the internal thread.

3. The in-situ remediation device for black and odorous water body sediment according to claim 1, wherein The repair component further includes a guiding plug, one end of the guiding plug is detachably connected to the spliced part, and the other end is conical.

4. The in-situ remediation device for black and odorous water body sediment according to claim 1, characterized in that The repair component further includes an aeration pipe, the spliced part is hollow with openings at both ends, and the side wall of the spliced part is provided with aeration holes, and the aeration pipe is connected to the spliced part and can aerate through the aeration holes.

5. The in-situ remediation device for black and odorous water body sediment according to claim 4, wherein, There are multiple aeration holes, and the multiple aeration holes are arranged at intervals along the length extension direction of the spliced part. In the direction from the aeration pipe to the spliced part, the diameters of the multiple aeration holes increase in sequence.

6. The in-situ remediation device for black and odorous water body sediment according to claim 5, characterized in that, There are multiple repair bodies, and the multiple repair bodies and the multiple aeration holes are arranged on the same straight line and alternately at intervals.

7. The in-situ remediation device for black and odorous water body sediment according to claim 1, characterized in that, The outer wall of the spliced part is provided with a receiving groove, the groove wall of the receiving groove has a clamping flange, and the outer wall of the capsule is provided with a clamping groove, and the clamping groove and the clamping flange are detachably clamped.

8. The in-situ remediation device for black and odorous water body sediment according to claim 7, characterized in that, The repair component further includes a protective film, and the protective film is hermetically connected to the spliced part and covers the capsule.

9. A repair system, characterized in that, Comprising a connecting piece and multiple in-situ black-odor water body bottom mud repair devices as described in any one of claims 1-8, and the connecting piece connects the multiple in-situ black-odor water body bottom mud repair devices.

10. The repair system according to claim 9, wherein The repair system further includes an aerator, the spliced part is hollow with openings at both ends and its outer wall is provided with aeration holes, the connecting piece communicates with all the spliced parts, and the aerator is connected to the connecting piece and can aerate all the aeration holes through the connecting piece.

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