AU2021105901A4 - Device for synchronously treating eutrophic water body and sestons in water body - Google Patents

Abstract

OF THE DISCLOSURE Disclosed is a device for synchronously treating a eutrophic water body and sestons in the water body. The device comprises a collection system, a diffusion silicon pressure transmitter, a separation system, a purification system, a kinetic energy system and a floating platform, wherein the collection system comprises an automatic ferry opening, a ferry door and a cutter knife, the ferry door is arranged at the automatic ferry opening, the automatic ferry opening communicates with the diffusion silicon pressure transmitter, and the cutter knife is arranged in the automatic ferry opening; the separation system comprises a solid-liquid filter screen, a nitrogen and phosphorus synchronous adsorbent steel filter screen and a rotating disc, and the kinetic energy system drives the rotating disc to drive a centrifugal barrel to rotate; the purification system comprises a lower pore plate, a composite filling layer and an upper pore plate, the water body is conveyed to the lower pore plate through a submersible pump, and the purified water body flows out of the upper pore plate; and the kinetic energy system comprises a solar power generation mechanism arranged on the floating platform, and a device body is connected to the bottom of the floating platform. According to the device, the eutrophic water body can be treated, so that the purified water quality reaches the water quality standard in a natural state, and the waste of water resources is avoided. ABSTRACT DRAWING 12 3 4 21 21 20 6 23-- 9 14 11, 12 17 16 FIG. 1 1

Description

DEVICE FOR SYNCHRONOUSLY TREATING EUTROPHIC WATER BODY AND SESTONS IN WATER BODY TECHNICAL FIELD

[01] The present disclosure relates to the field of water body treatment technology, in particular to a device for synchronously treating a eutrophic water body and sestons in the water body.

BACKGROUND ART

[02] Due to the fact that a large amount of chemical fertilizer is used in human life and various kinds of sewage are discharged, serious nitrogen and phosphorus pollution of water bodies of lakes and rivers is caused, the pollution causes eutrophication of the water bodies, and water quality deterioration is caused. The eutrophication of water bodies is one of the major environmental problems faced by the society nowadays and has become an important influence factor for economic and social development, and the economic and effective control of the eutrophication of water bodies has become an urgent environmental problem to be solved at present. The eutrophication of water bodies is just like a chronic disease of lakes, and complete "cure" is very difficult. At present, no effective treatment means exists to completely prevent and treat water eutrophication.

SUMMARY

[03] The present disclosure aims to provide a device for synchronously treating a eutrophic water body and sestons in the water body so as to solve the problems in the prior art, and the eutrophic water body monitored by the remote sensing technology can be put at fixed points and put in a multi-machine combined manner, so that the purified water quality reaches the water quality standard in a natural state, and the waste of water resources is avoided.

[04] In order to achieve the above-mentioned purpose, the present disclosure provides the following scheme: the device for synchronously treating a eutrophic water body and sestons in the water body provided by the present disclosure comprises a collection system, a diffusion silicon pressure transmitter, a separation system, a purification system, a kinetic energy system and a floating platform, wherein the collection system and the separation system are sequentially arranged in an inner cavity of a device body from top to bottom, and the purification system is located in an outer cavity of the device body; the collection system comprises an automatic ferry opening, a ferry door and a cutter knife, the ferry door is arranged at the automatic ferry opening and is used for the opening or closing of the automatic ferry opening, the automatic ferry opening communicates with the diffusion silicon pressure transmitter, the diffusion silicon pressure transmitter is used for controlling the opening and closing of the ferry door, and the cutter knife is arranged in the automatic ferry opening;

[05] the separation system comprises a solid-liquid filter screen, a nitrogen and phosphorus synchronous adsorbent steel filter screen and a rotating disc which are sequentially arranged in a centrifugal barrel, the diffusion silicon pressure transmitter is arranged below the solid-liquid filter screen, the kinetic energy system drives the rotating disc to drive the centrifugal barrel to rotate, and the separated water body is connected with the purification system through a submersible pump in the kinetic energy system;

[061 the purification system comprises a lower pore plate, a composite filling layer and an upper pore plate, the water body is conveyed to the lower pore plate through the submersible pump, and then the purified water body flows out of the upper pore plate through the composite filling layer; and the kinetic energy system comprises a solar power generation mechanism arranged on the floating platform, and the device body is connected to the bottom of the floating platform.

[071 Preferably, the cutter knife comprises a fixed rod, a transmission rod, a tablet press, a gasket, a blade protector, a movable blade and a cutter bar. The cutter bar and the blade protector are fixed on the fixed rod through the tablet press and the gasket, the cutter bar is provided with the movable blade, and the cutter knife works under the action of the transmission rod. The cutter knife is a reciprocating type cutter knife, and the principle is that the space motion of the transmission rod is changed into the rotation of the fixed rod of a shifting fork, so that the reciprocating motion is achieved. The blade protector of the reciprocating type cutter knife divides the target sestons into a plurality of parts to be transferred to the movable blade, and the movable blade pushes the target sestons to a fixed part of the blade protector for cutting in the reciprocating motion.

[08] Preferably, the diffusion silicon pressure transmitter is manufactured by packaging a silicon piezoresistive pressure sensitive element with isolation in a stainless steel shell.

[09] Preferably, the composite filling layer comprises a lower fiber medium, ceramsite, a diatomite-zeolite complexing agent, a bamboo filament filler and an upper fiber medium.

[10] Preferably, anti-backflow equipment is arranged at a water inlet of the purification system. The anti-backflow equipment is a DSBP741X type low-resistance backflow preventer. When a medium flows through a water inlet valve, pressure is reduced due to mechanical resistance and overflowing water head loss, the inlet pressure is higher than the pressure of a cavity of a water drain valve, and the pressure difference controls the water drain valve to be closed, so that normal work of the backflow preventer is guaranteed.

[11] Preferably, plants are planted on the floating platform, and a plant root system purifies and filters the water body again after the water body flows out of an upper pore plate outlet of the purification system.

[12] Preferably, the solar power generation mechanism comprises a monocrystalline silicon solar cell power generation panel and an electric power storage cabin, the monocrystalline silicon solar cell power generation panel is installed above the floating platform, direct current generated by the monocrystalline silicon solar cell power generation panel enters the electric power storage cabin to be stored, and the direct current of the electric power storage cabin is inverted into alternating current through an inverter during use; and the submersible pump is electrically connected with the solar power generation mechanism.

[131 Preferably, the direct current generated by the monocrystalline silicon solar cell power generation panel passes through a circuitron and then triggers a switch in a controller charging loop through an anti-reverse charging diode, the switch is turned on, the direct current enters the electric power storage cabin at the lower end of the equipment for electric power storage, an anti-reverse connection diode and a fuse are installed at the two ends of the electric power storage cabin, and a storage battery discharge switch installed in the electric power storage cabin is connected with the submersible pump and the cutter knife through load.

[14] Preferably, the device further comprises a GPS position finder, and the GPS position finder is arranged at the bottom of the floating platform.

[15] Compared with the prior art, the present disclosure has the following beneficial technical effects:

[161 According to the device, solar energy is used for providing all electric energy for the device, energy is saved, and environmental protection is achieved; and by utilizing the characteristic of high maneuvering performance of an ecological floating island model, eutrophication of a lake water body can be effectively treated in a large range, and the water quality of a closed water body is treated. The device is not affected by seasonal climate, and the working efficiency is high; multiple instruments can be spliced to work together, a large-area working area can be formed, the processing capacity is high, and the processing range is wide; and disassembly and maintenance are convenient and simple.

BRIEF DESCRIPTION OF THE DRAWINGS

[171 To more clearly illustrate the embodiment of the present disclosure or the technical scheme in the prior art, the following briefly introduces the attached figures to be used in the embodiment. Apparently, the attached figures in the following description show merely some embodiments of the present disclosure, and those skilled in the art may still derive other drawings from these attached figures without creative efforts.

[18] FIG. 1 is a structural schematic diagram of a device provided in the present disclosure;

[19] FIG. 2 is a schematic diagram of a cutter knife of a ferry opening;

[20] FIG. 3 is a schematic diagram of a composite filling layer device; and

[21] FIG. 4 is a schematic diagram of a solar power generation electric power storage system.

[22] Reference signs: 1, plant; 2, monocrystalline silicon solar cell power generation panel; 3, automatic ferry opening; 4, cutter knife; 5, floating platform; 6, ferry door; 8, composite filling layer; 9, circuitron; 10, water pump outlet; 11, water pipe; 12, thruster; 13, water inlet; 14, nitrogen and phosphorus synchronous adsorbent steel filter screen; 15, solid-liquid filter screen; 16, electric power storage cabin; 17, submersible pump; 18, rotating disc; 20, centrifugal barrel; 21, GPS position finder; 22, seston; 23, diffusion silicon pressure sensor; 24, fixed rod; 25, transmission rod; 26, tablet press; 27, gasket; 28, blade protector; 29, movable blade; 30, cutter bar; 31, anti-backflow equipment; 32, lower pore plate; 33, lower fiber medium; 34, ceramsite;

, diatomite-zeolite complexing agent; 36, bamboo filament filler; 37, upper fiber medium; 38, upper pore plate; 39, plant root system; 40, outlet; 41, fixed device; 42, anti-reverse charging diode; 43, anti-reverse connection diode; 44, switch in controller charging loop; 45, storage battery discharge switch; 46, fuse; and 47, load shielding load.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[23] The following clearly and completely describes the technical scheme in the embodiments of the present disclosure with reference to the attached figures in the embodiments of the present disclosure. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[24] The present disclosure aims to provide a device for synchronously treating a eutrophic water body and sestons in the water body so as to solve the problems in the prior art, and the eutrophic water body monitored by the remote sensing technology can be put at fixed points and put in a multi-machine combined manner, so that the purified water quality reaches the water quality standard in a natural state, and the waste of water resources is avoided.

[25] To make the foregoing objective, features and advantages of the present disclosure clearer and more comprehensible, the present disclosure is further described in detail below with reference to the attachedfigures and specific embodiments.

[26] As shown in FIG. 1, the embodiment provides a device for synchronously treating a eutrophic water body and sestons in the water body, comprising a collection system. The device is placed in the water body affected by eutrophication and the sestons, the water body and the sestons 22 spontaneously flow into a collection system in the device due to gravity, and the collection system comprises an automatic ferry opening 3, a cutter knife 4, a ferry door 6 and a diffusion silicon pressure transmitter 23. The water body and the sestons 22 spontaneously flow in due to gravity, the automatic ferry opening 3 communicates with the diffusion silicon pressure transmitter 23, sensed liquid and solid pressure is converted into standard electric signals to be output outwards, the opening and closing of the ferry door 6 are controlled by collecting the electric signals, the collection condition of the device is monitored, and the collected sestons 22 are treated in time.

[271 The cutter knife 4 is arranged in the automatic ferry opening 3 to prevent the ferry opening from being blocked due to the fact that the sizes of the sestons 22 are too large. FIG. 2 is a schematic diagram of the cutter knife, and the cutter knife is mainly composed of a fixed rod 24, a transmission rod 25, a tablet press 26, a gasket 27, a blade protector 28, a movable blade 29 and a cutter bar 30. The cutter bar 30 and the blade protector 28 are fixed on the fixed rod 24 through the tablet press 26 and the gasket 27, the cutter bar 30 is provided with the movable blade, and the cutter knife 4 works under the action of the transmission rod 25. The cutter knife 4 is a reciprocating type cutter knife, and the principle is that the space motion of the transmission rod 25 is changed into the rotation of the fixed rod 24 of a shifting fork, so that the reciprocating motion is achieved. The blade protector 28 of the reciprocating type cutter knife divides the target sestons 22 into a plurality of parts to be transferred to the movable blade 29, and the movable blade 29 pushes the target sestons to a fixed part of the blade protector 28 for cutting in the reciprocating motion.

[28] The eutrophic water body and the sestons can reach the separation system after being primarily treated by the collection system. The separation system comprises a solid-liquid filter screen 15, a DATA-52 series diffusion silicon pressure transmitter 23, a nitrogen and phosphorus synchronous adsorbent steel filter screen 14, a rotating disc 18 and a centrifugal barrel 20. The diffusion silicon pressure transmitter 23 is arranged below the solid-liquid filter screen 15. After the water body is filtered by the solid-liquid filter screen 15, the sestons 22 in the water body remain in the centrifugal barrel 20, when the gravity reaches the standard, the diffusion silicon pressure sensor 23 transmits the signals to the automatic ferry opening 3, the ferry opening receives the transmitted electric signals, and the ferry door 6 is closed.

[29] The DATA-52 series diffusion silicon pressure transmitter 23 is manufactured by packaging a silicon piezoresistive pressure sensitive element with isolation in a stainless steel shell. According to the piezoresistive effect principle, the pressure of a measured medium directly acts on stainless steel or ceramic on a diaphragm of the sensor, so that the diaphragm generates tiny displacement in direct proportion to the pressure of the medium, the resistance value of the sensor changes, the change is detected through an electronic circuit, and a standard measurement signal corresponding to the pressure is converted and output. The sensed liquid or gas pressure is converted into standard electric signals to be output outwards, the opening and closing of the ferry door 6 are controlled by collecting the electric signals, the collection condition of the device is monitored, and the collected sestons 22 are treated in time.

[30] After the water body is filtered by the solid-liquid filter screen 15, large sestons 22 in the water are effectively treated. Then, centrifugal force is generated through high-speed rotation of the rotating disc 18, water and the wall of the centrifugal barrel 20, the sestons 22 and water, and the sestons 22 and the wall of the centrifugal barrel 20 rub with each other, and water in the water body flows downwards through the nitrogen and phosphorus synchronous adsorbent steel filter screen 14 of a second-layer filter screen under the action of the centrifugal force to be subjected to secondary filtration, so that the water in the water body is further separated from the sestons 22. The nitrogen and phosphorus synchronous adsorbent steel filter screen 14 is used for adsorbing N and P elements once and controlling the release of nitrogen and phosphorus while filtering the sestons 22, and can effectively prevent the system from being blocked.

[31] The sestons 22 are in the water body is completely filtered after secondary filtration of the water body through the solid-liquid filter screen 15 and the nitrogen and phosphorus synchronous adsorbent steel filter screen 14, and the sestons 22 reach the standard that the sestons 22 are discharged into the composite filling layer 8 to be treated in the next step.

[32] The water body passes to the purification system from the centrifugal barrel by needing the action of the submersible pump 17. The water body enters from a water inlet 13 of the submersible pump 17 in the middle of the rotating disc 18 in a concentrated mode, and the water body is conveyed to a water pump outlet 10 through a water pipe 11 under the conveying effect of the submersible pump 17 and then flows into the composite filling layer 8. The purification system comprises the nitrogen and phosphorus synchronous adsorbent steel filter screen 14, the composite filling layer 8 and plants 1.

[33] FIG. 3 is a schematic diagram of a composite filling layer 8 device. The composite filling layer is mainly composed of anti-backflow equipment 31, a water pipe 11, a lower pore plate 32, a lowerfiber medium 33, ceramsite 34, a diatomite-zeolite complexing agent 35, a bamboo filament filler 36, an upper fiber medium 37, an upper pore plate 38, a plant root system 39, an outlet 40 and afixed device 41. The water body reaches the anti-backflow equipment 31 in the composite filling layer 8 device through the submersible pump 17 and then is conveyed to the lower pore plate 32 through the water pipe 11. After power is provided by the submersible pump 17, the water body passes through the lower fiber medium 33, and then passes through the ceramsite 34, the diatomite-zeolite complexing agent 35 and the bamboo filament filler 36 for water body purification.

[34] Hydrophilic functional groups in a composite adsorbent rapidly and massively adsorb pollutants in the eutrophic water body. Thefine honeycomb-shaped micropores in the ceramsite 34 can well adsorb the pollutants, and the micropores are closed instead of communicated, and are formed due to the fact that gas is wrapped in a shell, which is a main reason for light weight and good adsorbability of the ceramsite. Diatomite is of a unique nano-microporous structure and has good exchangeability and selective adsorbability, and the zeolite is a water-containing frame-shaped aluminosilicate mineral, can remove ammonia, nitrogen and phosphorus in sewage, and also has a certain removal capacity for other pollutants. The diatomite-zeolite complexing agent has a more remarkable adsorption effect on nitrogen and phosphorus, so that the device is selected as one part of the composite filling layer. The bamboo filament filler 36 can form some scattered bamboo filament fibers and biological membrane structures, and the net capturing effect on macromolecular organic particles and inorganic particles is enhanced. The purified water body passing through the ceramsite 34, the diatomite-zeolite complexing agent 35 and the bamboo filament filler 36 passes through the upper fiber medium 37 and the upper pore plate 38, and nitrogen and phosphorus pollutants in the water are finally purified by combining multiple plants with the plant root system 39 on the upper pore plate. Finally, the water body is discharged out of the device through the outlet 40. The removal effect of the combination of the multiple plants on the nitrogen and phosphorus pollutants in water is superior to that of a single plant. By applying a biological floating island technology principle, on one hand, a large amount of N and P elements in the water body are adsorbed by utilizing a dense root system net with a large surface area of plants, and on the other hand, the device inhibits photosynthesis of algae by shielding sunlight and prevents overgrowth of phytoplankton. Meanwhile, dense aquatic plants are planted above the device, and the aquatic plants can be selected according to the local natural environment. The aquatic plants generally include emergent aquatic plants such as water fennel, eichhornia crassipes, iris tectorum, Thalia dealbata and Iris pseudacorus as well as submerged plants such as myriophyllum spicatum, Elodea nuttallii and Ceratophyllum demersum.

[35] The working principle of the floating island refers to the principle of a soilless culture technology, and the chemical oxygen transfer amount of the water body is reduced by utilizing direct contact between the plant root system 39 and the water body to absorb eutrophic substances such as nitrogen, phosphorus and organic pollutants in the water body; the growth of algae is inhibited by shielding sunlight through the plants and the bed body; and the transparency of the water body is increased by enhancing the precipitation of suspended substances in water through the combined action of the filler and animal and plant microorganisms.

[361 The device takes full advantage of solar energy for power generation. The kinetic energy system of the device comprises a monocrystalline silicon solar cell power generation panel 2, an electric power storage cabin 16, a submersible pump 17 and a thruster 12. The monocrystalline silicon solar cell power generation panel 2 is installed above the floating platform 5, the monocrystalline silicon solar cell power generation panel 2 generates power; and electric power is collected through a photovoltaic effect, a monocrystalline silicon solar cell is mainly utilized, the construction and production process of the monocrystalline silicon solar cell power generation panel 2 are shaped, and the product has widely used in space and ground. The photoelectric conversion efficiency of the monocrystalline silicon solar cell power generation panel 2 is about %, the laboratory achievement is more than 20%, the photoelectric conversion efficiency is the highest in the solar cell, and enough kinetic energy can be provided for the device. The direct current generated by the monocrystalline silicon solar cell power generation panel 2 firstly enters the electric power storage cabin 16 at the lower end of the equipment to be stored, and the direct current in the electric power storage cabin 16 is inverted into alternating current through an inverter during use, so that the normal operation of the device in different environments is ensured. The solar cell panel charges the electric power storage cabin 16 through a 12V/20A solar charging controller.

[371 FIG. 4 is a schematic diagram of a solar power generation electric power storage system. The solar power generation electric power storage system comprises a monocrystalline silicon solar cell power generation panel 2, an anti-reverse charging diode 42, an anti-reverse connection diode 43, a switch in a controller charging loop 44, a storage battery discharge switch 45, a fuse 46, and a loading shielding load 47. The direct current generated by the monocrystalline silicon solar cell power generation panel 2 passes through a circuitron and then triggers a switch 44 in a controller charging loop through an anti-reverse charging diode 42, the switch is turned on, the direct current enters the electric power storage cabin 16 at the lower end of the equipment for electric power storage. The anti-reverse connection diode 43 and the fuse 46 are installed at the two ends of the electric power storage cabin 16. And the storage battery discharge switch 45 is installed, and the electric power storage cabin 16 is connected with the loads such as the submersible pump 17 and the cutter knife 4. A load shedding load 47 is connected in series at the switch 44 in the controller charging loop to detect the control circuit. The load shedding load 47 is used for monitoring the voltage at the two ends of the battery.

[381 The submersible pump 17 is an all-in-one machine, a motor is waterproof and sealed, and the submersible pump can submerge into water for a long time to operate. The equipment can transport water from the separation system to the purification system and discharge the purified water into a raw water body. The floating platform 5 is a combined modular buoy which is formed by processing high-molecular polyethylene HDPE through a blow molding process, can be freely combined into floating platforms with different shapes, and has the characteristics of being easy to install, convenient to detach, low in manufacturing cost, durable and the like.

[39] The GPS position finder 21 is a GPS satellite positioning and tracking terminal based on a GPRS (data flow) and SMS (short message) communication mode, and a GSM public network with high stability guarantee is adopted, so that all of the communication modes are high in access response speed, always online and capable of monitoring the position of the system in real time. A moving target can be tracked and monitored in real time through the platform, the current speed, direction, driving distance, driving time and the like are monitored, a driving track is automatically recorded, and a user can play a historical moving track. Water purification can be effectively carried out on the water area at a fixed point.

[40] The device has strong mobility, can circularly treat the eutrophic water body and floating solids, and can effectively treat the eutrophic water body and sestons in the water body, so that the purpose of purifying the water body is achieved. Solar power generation is fully utilized, water and the sestons in the water body are separated through the separation system, and then the water is subjected to multi-stage purification through the combined action of a composite adsorption technology, the composite filling layer and the aquatic plants, so that the eutrophic lake water is treated and repaired. However, the collected sestons still need to be recycled, thrown, treated and cleaned manually and frequently.

[41] It needs to be noted that for those skilled in the art, obviously the present disclosure is not limited to the details of the exemplary embodiment, and the present disclosure can be achieved in other specific forms without departing from the spirit or essential characteristics of the present disclosure. Therefore, for every point, the embodiments should be regarded as exemplary embodiments and are unrestrictive, the scope of the present disclosure is restricted by the claims appended hereto, therefore, all changes, including the meanings and scopes of equivalent elements, of the claims are aimed to be included in the present disclosure, and any mark of attached figures in the claims should not be regarded as limitation to the involved claims.

[42] Specific examples are used for illustration of the principles and implementation methods of the present disclosure. The description of the above-mentioned embodiments is used to help illustrate the method and its core principles of the present disclosure. In addition, those skilled in the art can make various modifications in terms of specific embodiments and scope of application in accordance with the teachings of the present disclosure. In conclusion, the content of this specification shall not be construed as a limitation to the present disclosure.

Claims (5)

WHAT IS CLAIMED IS:

1. A device for synchronously treating a eutrophic water body and sestons in the water body, comprising a collection system, a diffusion silicon pressure transmitter, a separation system, a purification system, a kinetic energy system and a floating platform, wherein the collection system and the separation system are sequentially arranged in an inner cavity of a device body from top to bottom, and the purification system is located in an outer cavity of the device body; the collection system comprises an automatic ferry opening, a ferry door and a cutter knife, the ferry door is arranged at the automatic ferry opening and is used for the opening or closing of the automatic ferry opening, the automatic ferry opening communicates with the diffusion silicon pressure transmitter, the diffusion silicon pressure transmitter is used for controlling the opening and closing of the ferry door, and the cutter knife is arranged in the automatic ferry opening; the separation system comprises a solid-liquid filter screen, a nitrogen and phosphorus synchronous adsorbent steel filter screen and a rotating disc which are sequentially arranged in a centrifugal barrel, the diffusion silicon pressure transmitter is arranged below the solid-liquid filter screen, the kinetic energy system drives the rotating disc to drive the centrifugal barrel to rotate, and the separated water body is connected with the purification system through a submersible pump in the kinetic energy system; the purification system comprises a lower pore plate, a composite filling layer and an upper pore plate, the water body is conveyed to the lower pore plate through the submersible pump, and then the purified water body flows out of the upper pore plate through the composite filling layer; and the kinetic energy system comprises a solar power generation mechanism arranged on the floating platform, and the device body is connected to the bottom of the floating platform.

2. The device for synchronously treating a eutrophic water body and sestons in the water body according to claim 1, wherein the cutter knife comprises a fixed rod, a transmission rod, a tablet press, a gasket, a blade protector, a movable blade and a cutter bar; the cutter bar and the blade protector are fixed on the fixed rod through the tablet press and the gasket, the cutter bar is provided with the movable blade, the transmission rod is used for driving the cutter knife to work, and the cutter knife is a reciprocating type cutter knife.

3. The device for synchronously treating a eutrophic water body and sestons in the water body according to claim 1, wherein the diffusion silicon pressure transmitter is manufactured by packaging a silicon piezoresistive pressure sensitive element with isolation in a stainless steel shell; wherein the composite filling layer comprises a lower fiber medium, ceramsite, a diatomite-zeolite complexing agent, a bamboo filament filler and an upper fiber medium; wherein anti-backflow equipment is arranged at a water inlet of the purification system and is a DSBP741X type low-resistance backflow preventer; wherein plants are planted on the floating platform, and a plant root system purifies and filters the water body again after the water body flows out of an upper pore plate outlet of the purification system.

4. The device for synchronously treating a eutrophic water body and sestons in the water body according to claim 1, wherein the solar power generation mechanism comprises a monocrystalline silicon solar cell power generation panel and an electric power storage cabin, the monocrystalline silicon solar cell power generation panel is installed above the floating platform, direct current generated by the monocrystalline silicon solar cell power generation panel enters the electric power storage cabin to be stored, and the direct current of the electric power storage cabin is inverted into alternating current through an inverter during use; and the submersible pump is electrically connected with the solar power generation mechanism; wherein the direct current generated by the monocrystalline silicon solar cell power generation panel passes through a circuitron and then triggers a switch in a controller charging loop through an anti-reverse charging diode, the switch is turned on, the direct current enters the electric power storage cabin at the lower end of the equipment for electric power storage, an anti-reverse connection diode and a fuse are installed at the two ends of the electric power storage cabin, and a storage battery discharge switch installed in the electric power storage cabin is connected with the submersible pump and the cutter knife through load.

5. The device for synchronously treating a eutrophic water body and sestons in the water body according to claim 1, further comprising a GPS position finder, wherein the GPS position finder is arranged at the bottom of the floating platform.

FIG. 1 －1/3－

DRAWINGS

FIG. 3 FIG. 2 －2/3－

FIG. 4 －3/3－