CN111847807A

CN111847807A - Cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality repairing device

Info

Publication number: CN111847807A
Application number: CN202010872099.XA
Authority: CN
Inventors: 俞晟; 庄昊
Original assignee: Houpu Environmental Protection Technology Suzhou Co Ltd
Current assignee: Houpu Environmental Protection Technology Suzhou Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-10-30

Abstract

The invention discloses a cruising type micro/eutrophic river and lake bottom mud surface layer dredging and water quality repairing device, which comprises: the device comprises a ship body, a bottom-sinking type sludge-absorbing water-taking unit, a full-mixing aerobic aeration unit and a biochemical precipitation separation reaction unit, wherein the biochemical precipitation separation reaction unit comprises a sedimentation tank, the sedimentation tank comprises an aerobic plug flow solid-liquid separation zone and an activated sludge biochemical filtering zone, a plurality of inclined plates are arranged in the aerobic plug flow solid-liquid separation zone, the activated sludge biochemical filtering zone is positioned below the aerobic plug flow solid-liquid separation zone, the aerobic plug flow solid-liquid separation zone in the sedimentation tank is communicated with the aerobic aeration treatment tank from front to back, the upper edge of the sedimentation tank forms a clear water buffering zone, a clear water outlet pump is connected with the clear water buffering zone through a pipeline, and a sludge lifting pump is connected with the activated sludge biochemical filtering zone through a pipeline.

Description

Cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality repairing device

Technical Field

The invention relates to the field of dredging and water quality restoration of a bottom mud surface layer of a river or a lake, in particular to a cruise type micro/eutrophic dredging and water quality restoration device for the bottom mud surface layer of the river or the lake.

Background

Due to the thin environmental protection consciousness and the lagging treatment technology, the eutrophication pollution of surface water bodies such as rivers and lakes is serious, algae and other plankton are caused to be rapidly propagated, the ecological environment of the water body is evolved to the direction which is not beneficial to human beings, and the development of people's life and society is finally influenced, so that the eutrophication problem is increasingly concerned by the masses, and the water pollution cause and the pollution treatment become one of the main hotspots at the present stage.

At present, the problem of surface water micro/eutrophication in China is caused by the fact that a large amount of nutrient substances such as organic pollutants (BOD) and nitrogen and phosphorus enter slow-flow water bodies such as rivers and lakes, and the eutrophication treatment of the water bodies in the rivers and lakes is mainly prevented, controlled and restored by adopting different physical, chemical and biological methods: 1) the physical treatment method comprises sediment dredging, water diversion flushing, mechanical aeration and the like, on one hand, the engineering quantity is large, the operation cost is high, on the other hand, sediment at the bottom layer is easy to suspend and diffuse when the sediment is dredged for rivers and lakes with serious pollution, the release of nitrogen and phosphorus nutrient salts in the sediment is promoted, and therefore the water body environment is exposed to the risk of secondary pollution of the nitrogen and phosphorus nutrient salts; 2) the chemical method comprises coagulant addition, algaecide addition and the like, and can achieve certain effect in a short time, but has the problems of incomplete treatment and high cost, particularly generates secondary pollution to cause new ecological problems; 3) biological and ecological restoration, ammonia nitrogen in water is reduced by means of microbial degradation and absorption and transfer of aquatic plants or filtration and adsorption of an ecological floating bed and a filter bed, and the like, so that the problem of secondary pollution can be avoided, but the biological and ecological restoration method is greatly influenced by the environment, has strict requirements, and has the defects of long period and slow effect. Therefore, the treatment of micro/eutrophic river and lake water is a complex systematic engineering, and the development of water treatment process and equipment suitable for the national conditions of China is urgently needed.

Disclosure of Invention

Aiming at the problems and defects of the surface water pollution treatment and restoration technology, the invention aims to provide a cruise type micro/eutrophic river and lake bottom sludge surface layer dredging and water quality restoration device, which can effectively remove BOD, TN/TP and SS particle pollutants in micro/eutrophic water, slow down sedimentation rate of the river and lake bottom sludge, improve water transparency, DO, ORP and the like, improve water quality of the river and lake water and ensure sustainable development of river and lake ecology.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality repairing device comprises:

a hull adapted to move over a water surface;

the submerged sludge-sucking and water-taking unit comprises at least one sludge pump arranged on the ship body, a sludge inlet pipe and a horn suction port, wherein one end part of the sludge inlet pipe is communicated with an inlet of the corresponding sludge pump and can be submerged into the river bottom from the upper part of the river surface to be treated, and the horn suction port is arranged at the other end part of the sludge inlet pipe;

the full-hybrid aerobic aeration unit comprises a liquid inlet pipe, an aerobic aeration treatment tank, at least one blast aerator and an aerator, wherein one end part of the liquid inlet pipe is connected with an outlet of the sludge pump, the aerobic aeration treatment tank is positioned on the inner side of the ship body, the blast aerator is used for providing compressed air, the aerator is arranged in the aerobic aeration treatment tank, the other end of the liquid inlet pipe is communicated with the aerobic aeration treatment tank, and an air outlet of the blast aerator is communicated with the aerator in a gas mode;

the biochemical precipitation separation reaction unit is positioned at the downstream of the full-mixed aerobic aeration unit and comprises a precipitation tank positioned at the inner side of the ship body, a solid-liquid separation assembly consisting of a plurality of inclined plate units is arranged in the precipitation tank, a flow channel which is communicated up and down is limited between every two adjacent inclined plate units, each inclined plate unit consists of a plurality of S-shaped shifting plates which are sequentially arranged along the up-down direction, a gap is arranged between every two adjacent S-shaped shifting plates, and the gap is communicated with the two adjacent flow channels.

In the above technical solution, preferably, the sedimentation tank includes an aerobic plug flow solid-liquid separation zone and an activated sludge biochemical filtering zone, the plurality of inclined plate units are located in the aerobic plug flow solid-liquid separation zone, the activated sludge biochemical filtering zone is located below the aerobic plug flow solid-liquid separation zone, the aerobic plug flow solid-liquid separation zone in the sedimentation tank is communicated with the aerobic aeration treatment tank in front and back, a clear water buffer zone is formed at the upper edge of the sedimentation tank, the clear water buffer zone is connected with at least one clear water outlet pump pipeline, and the activated sludge biochemical filtering zone is connected with at least one sludge lifting pump pipeline.

In the above technical solution, preferably, the width of the flow channel is 30-150mm, and the distance of the gap is 5-20 mm.

In the above technical solution, preferably, each of the swash plate units is composed of 10 to 50S-shaped shift plates.

In the above technical scheme, preferably, the horn suction port is provided with a grid. Further preferably, the grid size on the grid is 5mm × 5 mm.

In the above technical solution, preferably, the installation angle of each inclined plate unit is 30 ° to 65 ° with respect to the horizontal plane, and the height from the bottommost part of each inclined plate unit to the bottom in the sedimentation tank is 10 cm to 50 cm.

In the above technical solution, preferably, the inner side of the bow portion has a front cavity, the inner side of the stern portion has a rear cavity, the rear cavity is in gas communication with the front cavity, the aerobic aeration treatment tank is located at the inner upper side of the front cavity, the air outlet of the at least one air blast aerator is in gas communication with an air outlet pipe arranged at the inner side of the front cavity, the air outlet pipe is located at the lower side of the aerobic aeration treatment tank, and the aerator is located at the inner bottom of the aerobic aeration treatment tank and is in gas communication with the inner cavity of the front cavity.

In the above technical solution, preferably, the hull is provided with a control and signal conversion platform for controlling the hull to automatically cruise and move on the water surface, and the control and signal conversion platform includes a signal communication module and a positioning module.

In the above technical solution, preferably, the ship body is provided with a battery pack for powering the device.

The device can realize the high-efficiency removal of BOD, TN/TP and SS particle pollutants in the micro/eutrophic water body, slow down the sedimentation rate of river and lake bottom mud, improve the water quality transparency, DO, ORP and the like, and greatly improve the surface water quality.

Drawings

FIG. 1 is a schematic front view of a cruise-type micro/eutrophic river and lake sediment surface layer dredging and water quality repairing device according to an embodiment of the present invention;

fig. 2 is a schematic top view of a cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality repairing device according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a plurality of swash plate units according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an S-shaped pick according to one embodiment of the present invention;

fig. 5 is an enlarged cross-sectional view at C-C of fig. 4.

Wherein, 100, the device; 1. a hull; 11. a bow portion; 12. a stern part; 13. a front cavity; 14. a rear cavity; 15. a control and signal conversion platform; 16. a structural support. 2. A bottom sinking type mud absorbing and water taking unit; 21. a sludge pump; 22. sludge enters the pipe; 23. a horn suction port; 3. a fully-mixed aerobic aeration unit; 31. a liquid inlet pipe; 32. an aerobic aeration treatment tank; 33. a blast aerator; 34. an aerator; 35. an air outlet pipe; 4. a biochemical precipitation separation reaction unit; 41. a sedimentation tank; 42. aerobic plug flow solid-liquid separation zone; 43. an activated sludge biochemical filtering area; 400 solid-liquid separation assembly; 44. a swash plate unit; 441. a flow channel; 442. an S-shaped plectrum; 443. a gap; 45. a clear water buffer zone; 5. clear water is discharged from a water pump; 6. a sludge lift pump.

Detailed Description

For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings.

Fig. 1-2 show a cruise-type micro/eutrophic river and lake bottom sediment surface layer dredging and water quality remediation device 100, the device 100 can optimize river and lake bottom sediment and water by using each unit on the device 100 according to the demand of field micro/eutrophic river and lake bottom sediment and water quality, so that 'background' microorganisms in the original micro/eutrophic river and lake are gathered to form high-density flocculent/granular activated sludge after aerobic acclimation, and the river and lake bottom sediment is effectively controlled to be deposited again under the precondition of reducing the concentrations of BOD, TN/TP and SS in the water body and improving the DO, ORP and transparency of the water body, thereby improving the added value of the water body.

Continuing with fig. 1-2, the apparatus 100 mainly comprises a hull 1, a submersible sludge-absorbing water intake unit 2, a fully-mixed aerobic aeration unit 3, and a set of biochemical precipitation-separation reaction units 4.

The hull 1 comprises a bow 11, a stern 12 and a front cavity 13 inside the bow 11 and a rear cavity 14 inside the stern 12. A structural support 16 is provided within the hull 11 and the forward and

aft cavities

13, 14 are also in gaseous communication via the structural support 16. The structural support 16 functions to support the respective components of the fully mixed aerobic aeration unit 3 and the biochemical precipitation-separation reaction unit 4. The hull 1 is adapted to move over the water surface. The hull 1 of the present invention is an auto-cruise hull, and a control and signal conversion platform 15 is arranged on the hull. The control and signal conversion platform 15 is provided with a signal communication module (such as communication modules of 4G, 5G or WIFI, and the like, and a 4G module is preferred at the present stage), a positioning module (such as a GPS or a Beidou, and a GPS module is preferred at the present stage), a ship propeller, a direction control system, a battery pack and the like. The user can remotely set a river and lake water body cruising route (a 'return' shape cruising route or a snake-shaped cruising route can be set, the snake-shaped cruising route is preferentially considered) and time (the time control for single cruising in a control restoration area is 3-12h, the time can be preferentially controlled by 4-8h by combining the power supply time of the battery pack and the water body restoration condition optimization time) through the signal communication module and the positioning module, the battery pack provides power for the ship propeller during cruising of the device, meanwhile, electric energy is provided for other energy consumption components on the device 100, and the battery pack is in shore when the electric quantity is lower than 15%, namely, the battery pack is moved to a work station with a signal transmission point to replace the battery or charge the battery.

A bottom-sinking sludge-sucking and water-taking unit 2 capable of extracting sludge and water from the bottom of rivers and lakes for remediation and water quality treatment. In this example, the submerged sludge-sucking water-taking unit 2 includes a pair of sludge pumps 21 installed side by side at the bow portion 11, a pair of sludge intake pipes 22 each having one end portion communicating with an inlet of the corresponding sludge pump 21 and capable of sinking from above the river surface to be treated to the river surface, and a trumpet-shaped suction port 23 installed at the other end portion of each sludge intake pipe 22. The pipe length of the sludge inlet pipe 22 is not greater than the cavitation height of the sludge pump 21. The height of the horn suction port 23 may be finely adjusted to be 5 to 15cm, preferably 5 to 8cm, from the bed base. The horn mouth 23 is provided with a grid (not shown) with a grid size of 5mm × 5mm, and the grid is used for intercepting large granular solids such as grass roots, masonry and the like in the mud-sucking and water-taking process.

The fully mixed aerobic aeration unit 3 comprises a liquid inlet pipe 31 with one end connected with the outlet of the sludge pump 21, an aerobic aeration treatment tank 32 positioned inside the ship body 1, a pair of blast aerators 33 for providing compressed air and an aerator 34 arranged in the aerobic aeration treatment tank 32. The other end of the liquid inlet pipe 31 is communicated with the aerobic aeration treatment tank 32, and the compressed air provided by a pair of blast aerators 33 can provide enough compressed air for the aerator 34. In this embodiment, the aerobic aeration treatment tank 32 is located at the upper inner side of the front cavity 13, an air outlet pipe 35 communicating with the air outlets of the pair of blast aerators 33 is further provided at the inner side of the front cavity 13, compressed air is fed into the front cavity 13 through the air outlet pipe 35, when the front cavity 13 is in a positive pressure state greater than the atmospheric pressure, the aerator 34 is opened, and the compressed air in the front cavity 13 is fed into the aerobic aeration treatment tank 32 through the aerator 34.

The fully-mixed aerobic aeration unit 3 is mainly used for increasing the DO concentration in the unit, supplying oxygen for the aerobic biochemical reaction process of the subsequent biochemical precipitation separation reaction unit, and controlling the DO concentration to be 4.0-6.5 mg/L, preferably 5.5-6.5 mg/L; simultaneously, the original 'background' anaerobic/facultative microorganisms can be acclimatized into facultative/aerobic microorganisms, and the aeration time is designed to be 5-20min, preferably 10-15 min; complete the full mixing of the 'background' microorganisms and pollutants in water, and realize the activated sludge process of the sewage treatment plant.

The compressed air provided by the blast aerator 33 can not only provide aeration power for the air outlet part of the aerator 34, but also maintain the positive pressure of the hull cavity to avoid the infiltration of river and lake water. When the blast aerator 33 is abnormal, the air can also keep the ship body cavity watertight, and sufficient time is provided for abutting against the shore; the pressure of the air supplied from the air blower aerator 33 is 1.3 to 2.2atm, preferably 1.5 to 1.7 atm.

And the biochemical precipitation separation reaction unit 4 is positioned at the downstream of the full-mixed aerobic aeration unit 3. The biochemical precipitation separation reaction unit 4 of the embodiment comprises a precipitation tank 41 positioned at the inner side of the ship body 11, wherein the precipitation tank 41 comprises an aerobic plug-flow solid-liquid separation zone 42 and an activated sludge biochemical filtering zone 43. The aerobic plug-flow solid-liquid separation zone 42 is provided with a solid-liquid separation component 400. The activated sludge biochemical filtering area 43 is positioned below the aerobic plug flow solid-liquid separation area 42. in the present example, the aerobic plug flow solid-liquid separation area 42 in the sedimentation tank 41 is communicated with the aerobic aeration treatment tank 32 in front and back, a clear water buffer area 45 is formed at the upper edge of the sedimentation tank 41, a pair of clear water outlet pumps 5 are connected with the clear water buffer area 45 by pipelines, and a pair of sludge lifting pumps 6 are connected with the activated sludge biochemical filtering area 43 by pipelines.

The clear water buffer zone 43 can further precipitate the non-polar/organic solid particles in the water body to reduce the SS value of the water body and improve the transparency. The clear water outlet pump 5 mainly balances the water volume of the full-mixing aerobic aeration unit 3 and the biochemical precipitation separation reaction unit 4 in the device, and prevents the device 100 from sinking due to excessive water volume. The sludge lifting pump 6 is used for discharging residual sludge to reach a designed sludge level line and maintain the sludge concentration in the activated sludge biochemical filtering area.

As shown in fig. 3, the solid-liquid separation module 400 is composed of a plurality of inclined plate units 44 arranged in series. In the example shown in the drawings, there are 20 swash plate units 44 in total, and the horizontal installation angle α of each swash plate unit 44 may be controlled between 30 ° and 65 °, preferably between 45 ° and 60 °. A flow channel 441, which may have a distance of 30 to 150mm, is formed between the adjacent two swash plate units 44, and the distance is preferably 50 to 100 mm. In this example, each swash plate unit 44 is formed by 10 to 50 (preferably 15 to 25) S-shaped lugs 442 arranged one above the other, and the installation angle of each S-shaped lug 442 on the same swash plate unit 44 is identical to the horizontal installation angle α of the entire swash plate unit 44. A gap 443 with the size of 5-20mm is reserved between the upper and lower adjacent poking sheets 441, the size of the gap 443 is preferably 5-10 mm, and the gaps 443 are communicated with the adjacent two flow channels 442. The structural configuration of single S-shaped paddle 441 is shown in fig. 4-5, which has an S-shaped cross-section. Both ends of each S-shaped shifting piece 441 of the present example are supported on opposite sides of the hull, and the height of the bottommost portion (i.e., the S-shaped shifting piece at the bottommost position) of each inclined plate unit 44 from the bottom wall in the sedimentation tank 41 is 10-50 cm

Thus, when the polluted river or lake water flows through the solid-liquid separation module 400, the water flows through the flow channels 441 and the gaps 443. By adjusting the number of the S-shaped plectrum 442 and the distance between two adjacent sloping plate units 44 (i.e., the size of the flow channel 441), the original turbulent flow can be reduced to the laminar flow; when the water flow flows through the flow channel 441 and the gap 443 in a laminar flow state, the formed granular sludge aggregates are deposited at the bottom of the aerobic plug flow solid-liquid separation zone 42 and enter the activated sludge biochemical filtering zone 43 at the lower part thereof under the action of water pressure.

The solid-liquid separation module 400 constituted by the plurality of inclined plate units 44 described above operates in the following principle: when water current is laminar, namely the middle flow velocity is higher than the flow velocities of the two side edges, because of the existence of relative velocity, internal friction can be generated, so that vortex flow is easily generated at the edge of an interface, and the vortex flow disturbs the rotation of flocculent sludge in a hydraulic field to be mutually wound and agglomerated to form small-particle sludge aggregates; the water flow is interfered by the S-shaped shifting piece 442, and because the S-shaped shifting piece has an inclined angle alpha, in the water flow flowing process, the tail end of the S-shaped shifting piece 442 rises to generate a throwing-off inertia force, namely, the formed small-particle sludge aggregate leaves a micro-area interface, so that the collision probability and efficiency of the small-particle sludge aggregate formed by other processes are increased, and the small-particle sludge aggregate which collides at the moment enters a central flow field, and the extrusion probability and efficiency are further increased under the action of the rapid water flow force, so that the large-particle sludge aggregate is formed. Under the action of the throwing-off inertia force, large-particle sludge aggregates which are extruded and formed mutually leave the central flow field and fall into the front end of the S-shaped shifting sheet 442 at a plurality of rates, so that the static pressure is increased due to the reduction of the speed, the large-particle sludge aggregates are solidified under the holding of the boundary vortex field and fall along the water flow direction, the large-particle sludge aggregates can move back and forth between the inclined plates to be continuously solidified and compacted into particle sludge aggregates with any shape and size, and the large-particle sludge aggregates can shuttle in gaps 443 between the S-shaped shifting sheets 442 to form ellipsoidal-shaped particle sludge aggregates with relatively uniform shapes.

The solid-liquid separation unit 400 of the present example has the following technical effects in the apparatus 100: when the polluted water flows in the gap 453 between the flow channel 442 and the S-shaped shifting piece 441, the activated sludge is continuously contacted with pollutants in water to generate adsorption on biodegradation, and meanwhile, due to the existence of granular sludge aggregates, organisms form a divided and dominant population in the microcosm, so that the pollutants are further removed. In addition, the water flow direction and the sludge precipitation direction are in the same direction, so that the sludge precipitation speed is accelerated, and the reduction of the concentration of granular sludge in the water body is facilitated; the granular sludge aggregate is pushed to enter the activated sludge biochemical filtering area 43 at the lower part, and under the action of gravity, sludge in the activated sludge biochemical filtering area 43 is further compressed and compacted, so that the inter-particle stacking pore diameter is reduced, water flow is cut into countless micro flows, the contact area is increased, and meanwhile, the actual water flow flowing path is increased in the complicated pore flow, so that pollutants can be degraded again and screened. In addition, the water flow in the activated sludge biochemical filtering area 43 moves from bottom to top due to the effect of the sludge lifting pump 6, and the direction of the water flow is opposite to the direction of sedimentation, so that the effects of biological self-filtration and flocculation are enhanced, and the removal of pollutants is facilitated.

The following table shows the comparative results of the treatment effect of the device 100 on the river and lake bottom mud control and water quality restoration treatment

TABLE 1 comparison of the effects of conventional techniques and cruise devices on river and lake sediment control and water quality remediation

The process device has the following advantages: (1) according to the actual water quality requirement of the micro/eutrophic water body, a cruise device of a communication-positioning module is adopted, a cruise route and time are designed, and on the premise that the effluent reaches the IV standard in GB3838-2002, the surface layer dredging and water quality restoration efficiency of the device is effectively improved; (2) the optimization device comprises a bottom-sinking type sludge-sucking water taking unit for sucking sludge/river and lake water, an aeration biochemical treatment unit for supplying oxygen required by aerobic biochemical treatment, an aerobic plug flow biochemical/solid-liquid separation zone, an activated sludge biochemical filtering zone and other water treatment process technical units, and a cruising type complete technical device is used for throwing target tested river and lake water bodies, so that BOD, TN/TP and SS particle pollutants in micro/eutrophic water bodies are effectively reduced, the sedimentation rate of the bottom sludge of the river and lake is slowed down, and the transparency of discharged water, DO and ORP are obviously improved; (3) after biochemical reactions of water treatment process technical units such as an aeration biochemical treatment unit, an aerobic plug flow biochemical/solid-liquid separation unit, an activated sludge biochemical filtering unit and the like which supply oxygen for aerobic biochemical treatment, the water quality of surface water is effectively improved in the adsorption and degradation processes of microorganisms by pollutants in the water body of a polluted river; (4) the boat body cavity, the sludge pump, the clean water pump, the blast aerator (including a conveying air outlet pipe), the equipment control and signal conversion platform and the like are assisted, so that the high-efficiency removal of BOD, TN/TP and SS particle pollutants in the micro/eutrophic water body in a cruising state is realized, the sedimentation rate of the river and lake bottom sludge is slowed down, the water quality transparency, DO, ORP and the like are improved, and the surface water quality is greatly improved.

Compared with the traditional treatment process scheme, the cruising type mobile operation can greatly save the device cost and the labor cost, change the cruising route and time of the device according to the actual water quality, and effectively improve the surface layer dredging and water quality restoration efficiency of the device, the effluent treated by the technique of the patent reaches the IV-class water quality requirement in the surface water environment quality standard of the people's republic of China (GB 3838-2002), the BOD, TN/TP and SS of water bodies are obviously reduced, the sedimentation rate of bottom mud of rivers and lakes is slowed down, and the DO, ORP and transparency indexes are obviously improved. In terms of the current key time node for controlling and restoring surface water pollution, the technical equipment represents the development trend of novel micro/eutrophic water quality index restoring treatment technical equipment, and meets the clear requirements of water pollution prevention and restoring action schemes in China at the present stage.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a cruising formula is declining/eutrophic river lake bed mud top layer desilting and quality of water prosthetic devices which characterized in that, the device includes:

a hull adapted to move over a water surface;

2. The cruising type micro/eutrophic river and lake bottom mud surface layer dredging and water quality restoration device as claimed in claim 1, wherein the sedimentation tank comprises an aerobic plug flow solid-liquid separation zone and an activated sludge biochemical filtering zone, the plurality of inclined plate units are located in the aerobic plug flow solid-liquid separation zone, the activated sludge biochemical filtering zone is located below the aerobic plug flow solid-liquid separation zone, the aerobic plug flow solid-liquid separation zone in the sedimentation tank is communicated with the aerobic aeration treatment tank in front and at the back, a clear water buffering zone is formed at the upper edge of the sedimentation tank, the clear water buffering zone is connected with at least one clear water outlet pump pipeline, and the activated sludge biochemical filtering zone is connected with at least one sludge lifting pump pipeline.

3. The cruise type micro/eutrophic river and lake bottom sediment surface dredging and water quality remediation device of claim 1, wherein the width of the flow channel is 30-150mm, and the distance of the gap is 5-20 mm.

4. The cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality restoration device according to claim 1, wherein each inclined plate unit is composed of 10-50S-shaped shifting plates.

5. The cruising type micro/eutrophic river and lake sediment surface layer dredging and water quality restoration device as claimed in claim 1, wherein a mesh grid is arranged on the horn suction port.

6. The cruise type micro/eutrophic river and lake sediment surface layer dredging and water quality restoration device according to claim 5, wherein the grid size on the grid is 5mm x 5 mm.

7. The cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality restoration device according to claim 1, wherein the installation angle of each inclined plate unit is 30-65 degrees relative to the horizontal plane, and the height of the bottommost part of each inclined plate unit from the bottom of the sedimentation tank is 10-50 cm.

8. The cruise type micro/eutrophic river and lake bottom mud surface dredging and water remediation device of claim 1, wherein the inner side of the bow portion has a front cavity, the inner side of the stern portion has a rear cavity, the rear cavity is in gas communication with the front cavity, the aerobic aeration treatment tank is located at the inner upper side of the front cavity, the air outlet of the at least one blast aerator is communicated with an air outlet pipe arranged at the inner side of the front cavity, the air outlet pipe is located at the lower side of the aerobic aeration treatment tank, and the aerator is located at the inner bottom of the aerobic aeration treatment tank and is in gas communication with the inner cavity of the front cavity.

9. The cruising type micro/eutrophic river and lake bottom sediment surface layer dredging and water quality restoration device as claimed in claim 1, wherein a control and signal conversion platform for controlling the automatic cruising movement of the ship body on the water surface is arranged on the ship body, and the control and signal conversion platform comprises a signal communication module and a positioning module.

10. The cruise type micro/eutrophic river and lake bottom mud surface layer dredging and water quality restoration device as claimed in claim 1, wherein a battery pack for powering the device is arranged on the hull.