Movable device and method for improving water quality of water source in situ

Abstract

The invention relates to the field of water purification and the field of water quality monitoring / ecological environmental protection, and discloses a movable water source water quality in-situ improvement device and method, and the device comprises an advancing and rotating unit, an in-situ water quality purification unit, a power supply and wireless control unit, a backwashing and aged biological membrane falling and collecting unit and a control handle. The device body is composed of a floating body base and a double-layer cylindrical wall, and the opening state of water inlet and outlet holes is adjusted by rotating the outer wall to adapt to different water qualities. The purification unit is used for treating pollutants by utilizing a biological filler and an aeration system. The device has a backwashing function, air-water washing and ultrasonic wave are used for assisting a biological membrane to fall off in a closed state, and the biological membrane is collected to a storage device through a pumping system. Solar hybrid power supply is adopted, and the system can be quickly deployed, is eco-friendly and has no secondary pollution risk.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water body purification and water quality monitoring / eco-environmental protection, in particular to a mobile water source water quality in-situ improvement device and method. BACKGROUND

[0002] Surface water sources dominated by rivers, lakes and reservoirs are the core resources for social operation, but in recent years, agricultural non-point source pollution, domestic sewage and industrial emissions have led to serious water eutrophication. In the face of these challenges, in-situ remediation of water source water quality has become a key measure. However, chemical agents that can produce side effects cannot be used in water sources, large-scale mechanical cleaning is costly and difficult to respond in time, and manual cleaning is low in efficiency. At the same time, environmental protection regulations require to improve the emergency response capability, and the industry is developing towards modular equipment that is mobile and can be quickly deployed. The existing water surface treatment equipment has many defects in structural design: First, the existing water treatment device inlet structure is mostly fixed hole or grid, which cannot adaptively adjust the hydraulic load according to the pollution degree. When the water quality is poor, the water flow is too fast, resulting in insufficient residence time and substandard treatment; Second, the existing biofilm carrier equipment lacks in-situ self-cleaning structure, and the detached aged biofilm is easy to be carried away by water flow, causing secondary pollution of the water source, and the traditional backwashing structure often causes filler entanglement and waterway blockage, which is troublesome to maintain; Third, the traditional device highly depends on shore power access, lacks renewable energy utilization and intelligent navigation control structure, and cannot meet the requirements of flexible cruising and long-term garrison treatment in complex water areas, deep water areas or power grid-free areas. SUMMARY

[0003] To improve the deficiencies of the prior art, the present application discloses a mobile water source water quality in-situ improvement device, comprising: A mobile carrier platform comprising a floating base capable of floating on the water surface and a propulsion assembly arranged on the floating base; A flow regulating and purifying cabin connected below the floating base, comprising an inner wall and an outer wall arranged coaxially; the side walls of the inner wall and the outer wall are both provided with water inlet and outlet holes; the outer wall is connected with a regulating driving mechanism, which is configured to drive the outer wall to produce rotary motion relative to the inner wall, so as to adjust the coincidence degree of the water inlet and outlet holes on the inner and outer walls, thereby switching between the open purification state and the closed regeneration state; An in-situ purification unit arranged in the internal space defined by the inner wall, comprising a filler assembly for attaching biofilm and an aeration assembly; The regeneration and collection system comprises a flushing desorption assembly arranged in the flow regulating and purifying cabin and a negative pressure collection assembly in communication with the headspace of the flow regulating and purifying cabin; the flushing desorption assembly is configured to promote biofilm shedding in the closed regeneration state, and the negative pressure collection assembly is configured to remove the shed and floated biofilm out of the internal space; The control and power supply unit is used for providing energy for the device and controlling the cooperative operation of the units.

[0004] Further, a flow guide connection area is formed between the top of the inner wall and the floating body base, and the flow guide connection area is configured as a top-contracted cavity structure; the negative pressure collection assembly comprises an extraction pump, a biofilm separator and a storage device, and the suction inlet of the extraction pump is arranged at the top of the flow guide connection area and is configured to extract the shed biofilm gathered due to buoyancy.

[0005] Further, the flow guide connection area is in the shape of an inverted funnel; the inner wall and the outer wall are both cylindrical barrels, and a sealing element is arranged between the inner wall and the outer wall.

[0006] Further, the adjusting driving mechanism comprises a power source and a transmission member arranged on the floating body base; the upper end of the outer wall is provided with a driven part, and the power source drives the driven part through the transmission member; the transmission member is any one of a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism.

[0007] Further, the filler assembly comprises a fixed net rack, a suspension member and a soft filler fixed at intervals, and the soft filler is configured to have a density greater than water after the biofilm is attached; The flushing desorption assembly comprises a flushing pipeline connected to the bottom of the inner wall and configured to provide a gas flushing, water flushing or gas-water dual flushing mode.

[0008] Further, the regeneration and collection system further comprises an auxiliary excitation device arranged on the inner surface of the inner wall and configured to generate ultrasonic waves or mechanical vibrations to assist biofilm shedding.

[0009] Further, the control and power supply unit comprises a central controller, a positioning module, an environment sensing module and a solar power supply system; The environment sensing module comprises a water quality sensor arranged in the inner wall and a flow direction detection module, an obstacle avoidance radar and a depth measurement module arranged on the floating body base; the central controller is configured to control the adjusting driving mechanism to adjust the flow according to the feedback data of the water quality sensor.

[0010] When the water quality data sent by the water quality sensor shows that the water quality of the inlet and outlet water changes greatly and the outlet water quality reaches a certain standard, the coincidence degree of the inlet and outlet water holes of the inner wall and the outer wall reaches the maximum, realizing the maximum water inflow; when the outlet water quality does not reach a certain standard, the coincidence degree of the inlet and outlet water holes of the inner wall and the outer wall will gradually decrease until the outlet water quality reaches the expectation, realizing partial water inflow; when the difference between the inlet and outlet water quality is small, the inlet and outlet water holes of the inner wall and the outer wall will be completely staggered, realizing the closure of the device, and the subsequent backwashing program is started.

[0011] Further, a remote interaction terminal is further included, which is in wireless communication connection with the central controller and is configured to display the device state and send control instructions; When the storage amount in the negative pressure collection assembly reaches a preset threshold, the central controller sends a maintenance signal to the remote interaction terminal.

[0012] Further, the aeration assembly includes a microporous aerator and a bottom aeration disc; the microporous aerator is installed on the floating body base and is in communication with the bottom aeration disc through an aeration pipeline penetrating into the internal space.

[0013] The application further discloses a water source water quality improvement method, which applies the movable water source water quality in-situ improvement device, and includes the following steps: According to the monitored water quality data, the overlapping area of the inlet and outlet water holes of the inner wall and the outer wall is adjusted by controlling the driving mechanism to adjust the water inflow; In the open state of the water inlet hole, the aeration assembly is started to degrade pollutants by using the biological membrane on the filler assembly; The outer wall is controlled to rotate to the closed state in which the inlet and outlet water holes are completely staggered, forming a closed cleaning space; In the closed cleaning space, the flushing and desorption assembly is started to make the biological membrane fall off and float to the top, and the biological membrane that floats up is extracted and separated and stored by using the negative pressure collection assembly.

[0014] Compared with the prior art, the application has the following advantages: The application sets the double-layer cylindrical structure of the inner wall and the outer wall, the outer wall is driven to rotate by the outer wall rotation control motor, and the coincidence degree of the inlet and outlet water holes of the inner wall and the outer wall can be dynamically adjusted. The mechanical design enables the device to adjust the water inflow according to the water quality: when the pollution is heavy, the water inflow rate is reduced to prolong the purification time, when the water quality is good, the opening degree of the water inlet hole is increased to increase the water treatment capacity, and the problem that the flow rate of the traditional equipment is constant and difficult to self-adaptively adjust is solved.

[0015] The top of the inner wall and the floating body are connected by an inverted funnel-shaped connection structure, which, in combination with the sealing design of the completely closed hole of the outer wall, forms an independent backwashing space. In cooperation with the air-water backwashing of the bottom, the physical action of the soft filler cutting bubbles and the ultrasonic resonance demolding technology, the aged biofilm will float and collect at the top of the inverted funnel after falling off, and will be pumped out by the internal water pump and stored in the device. This structure avoids the return of the falling sludge to the water source, reduces the difficulty of sludge disposal and operation and maintenance cost.

[0016] The present application has the advantages of rapid deployment and mobility, uses a solar cell hybrid power supply system, supports continuous off-grid operation for more than 48 hours, combines an Internet of Things central control system, various detection modules (flow direction, obstacle avoidance, depth measurement), and a multi-directional propeller at the bottom, so that the entire mechanical device can autonomously seek direction, prevent grounding, and accurately reach the contaminated area for targeted treatment. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 It is a whole external front view schematic diagram of the present application when normal water is entered; Figure 2 It is a whole internal schematic diagram of the present application; Figure 3 It is a schematic diagram of the inner and outer barrels and rotating parts in the present application; Figure 4 It is a whole external front view schematic diagram of the present application when washing and demolding; Figure 5 It is a schematic diagram of the control handle in the present application.

[0019] In the figure: 1. Mobile carrier platform; 101. Float base; 102. Propulsion assembly; 103. Power source; 104. Transmission; 105. Inner wall; 106. Outer wall; 107. Water inlet and outlet hole; 2. In-situ purification unit; 201. Fixed net rack; 202. Suspension; 203. Soft filler; 204. Microporous aerator; 205. Aeration main pipe; 206. Aeration pipe branch; 207. Bottom aeration disc; 3. Control and power supply unit; 301. Solar panel; 302. Lithium iron phosphate battery pack; 303. Positioning module; 304. Obstacle avoidance radar; 305. Depth measurement module; 306. Flow direction detection module; 307. Water quality sensor; 308. Central controller; 4. Regeneration and collection system; 401. Flushing water pump; 402. Flushing main pipe; 403. One-way valve; 404. Auxiliary excitation device; 405. Extraction pump; 406. Biofilm separator; 407. Storage device. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Embodiment: As Figures 1-5 , the present application proposes a mobile water source water quality in-situ improvement device, which comprises: a mobile carrier platform 1, a flow regulating purification cabin, an in-situ purification unit 2, a control and power supply unit 3, and a regeneration and collection system 4.

[0022] The mobile carrier platform 1 comprises: a float base 101 and a propulsion assembly 102. The propulsion assembly 102 is a propeller type thruster. The float base 101 is the basic support part of the unit, mainly used to provide a certain residual buoyancy to keep the entire control platform floating on the water surface and stably running. The float base 101 is in the shape of an inverted funnel and is made of high-strength, corrosion-resistant polyethylene (PE) material or glass steel material, which ensures its resistance to high humidity environment and good wind and wave resistance. The propeller type thruster is arranged below the float base 101 and distributed in four directions, a total of four. The propeller type thruster is characterized by variable rotation direction of the propeller. The propeller type thruster is connected with the flow direction detection module 306 and the central controller 308, and can be manually or automatically controlled and adjusted in motion direction and speed by a wireless control unit, so as to realize the water quality improvement operation of the mobile water source water quality in-situ improvement device in the water source.

[0023] The flow regulating purification cabin comprises an inner wall 105, an outer wall 106, and water inlet and outlet holes 107 on the inner and outer walls. The inner wall 105 is fixed on the floating body base 101. An elastic rubber sealing layer is arranged on the outer side of the inner wall to achieve water sealing, and water inlet and outlet holes 107 are arranged on the inner and outer walls. The outer periphery of the inner wall 105 is provided with an annular sealing groove, and a V-shaped sealing ring is embedded in the groove. The lip of the V-shaped sealing ring faces the direction in which the water pressure increases. The inner wall surface of the outer wall 106 is subjected to hardening and polishing treatment to maintain dynamic sealing and scrape off small particles attached during rotation. During rotation of the outer wall 106, the water inlet and outlet holes 107 arranged on the inner and outer walls will appear in states of partial opening, full opening, and full closing.

[0024] The regulating driving mechanism comprises a power source 103 and a transmission member 104. The power source 103 is a water inlet and outlet outer wall rotation control motor, and the transmission member 104 is a water inlet and outlet outer wall rotation control gear. The outer wall 106 is rotated by the water inlet and outlet outer wall rotation control motor driving the outer wall rotation control gear. During rotation of the outer wall 106, the water inlet and outlet holes 107 arranged on the inner and outer walls will appear in states of partial opening, full opening, and full closing. When the water inlet and outlet holes 107 on the inner and outer walls are fully opened and coincide, the maximum water inlet and outlet amount can be achieved. When the outer wall 106 fully blocks the water inlet and outlet holes of the inner wall 105, the device is closed, and backwashing and demolding operations can be performed without affecting the water quality of the water source during this period. The device is relatively flexible in operation. For different water qualities, when the pollution degree exceeds the design load of the device, the opening degree of the water inlet and outlet holes can be adjusted. When the water quality is poor, the device is operated with small opening degree to improve the purification efficiency. When the water quality is good, the opening degree can be increased to increase the purified water amount.

[0025] The in-situ purification unit 2 comprises a filler assembly and an aeration assembly. The filler assembly comprises a fixed net rack 201, a suspension member 202, and soft fillers 203. The suspension member 202 is a connecting rope, and the soft fillers 203 are biological fillers. The fixed net rack 201 is made of 316L stainless steel, has high strength, excellent corrosion resistance, and good forming and welding performance. The fixed net rack 201 is connected to the upper opening of the inner wall 105 and can be detached and replaced. The grid space is large, facilitating the passage of the detached biofilm after washing. One end of the connecting rope is connected to the lower part of the inner wall 105, and the other end is tied to the grid of the fixed net 201. The number of connecting ropes can be adjusted as needed. The connecting rope is made of high-strength nylon rope to ensure that it is not easily broken during operation. The soft fillers 203 are uniformly fixed on the connecting rope. The soft fillers have a large specific surface area and are used to accommodate a large number of microorganisms, significantly improving the biomass concentration in the movable water source in-situ improvement device and thus improving the treatment capacity. The density of the soft fillers is slightly greater than water when the biological membrane is attached. An aerobic biological environment is created.

[0026] The aeration assembly comprises: a microporous aerator 204, a bottom aeration disc 207, an aeration pipeline; the aeration pipeline comprises an aeration main pipe 205 and an aeration branch pipe 206. The microporous aerator 204 is fixed on the floating body base 101, and the oxygen-rich air is delivered to the bottom aeration disc 207 through the aeration main pipe 205 and the aeration branch pipe 206. In normal operation, the microporous aerator 204 is started, small bubbles are released from the aeration disc 207, and the mass transfer of dissolved oxygen is completed during the upward movement. At the same time, the soft filler 203 with biological membrane has a cutting effect on the bubbles, which promotes the mass transfer of dissolved oxygen and the shedding of aged biological membrane, and ensures that the movable water source water quality in-situ improvement device has good water quality purification efficiency.

[0027] The regeneration and collection system 4 comprises: a flushing desorption assembly, a negative pressure collection assembly, and an auxiliary excitation device 404; the auxiliary excitation device 404 is an ultrasonic and resonance device; the flushing desorption assembly comprises: a flushing pipeline; the flushing pipeline mainly comprises a flushing water pump 401, a flushing main pipe 402, and a one-way valve 403; the negative pressure collection assembly mainly comprises an extraction pump 405, a biological membrane separator 406, and a storage device 407; the storage device 407 is used for storing biological membrane. When the central controller 308 monitors that the difference between the inlet and outlet water quality is small (the specific standard can be set through the control handle), the backwashing program will be automatically started. At this time, the flushing water pump 401 and the microporous aerator 204 can realize air flushing, water flushing, and air-water double flushing of the soft filler 203 by extracting raw water and generating compressed air through the respective one-way valves 403 into the bottom aeration disc 207 located on the inner wall 105, and the specific mode can be set through the control handle. At the same time, the shedding of the aged biological membrane on the surface of the soft filler 203 can be intensified by the auxiliary ultrasonic and resonance device, and the biological membrane will float on the liquid surface after shedding and be extracted by the extraction pump 405 in the middle of the inverted funnel-shaped outer wall 106 to the biological membrane separator 406, and the liquid and the biological membrane are separated and the biological membrane is transported and stored in the storage device 407. The central controller 308 will real-time statistics and send the device operation condition and the storage amount of the biological membrane in the storage device 407 to the control handle, and the control handle will automatically notify when the storage amount of the biological membrane in the storage device 407 exceeds 80%. At this time, the device can automatically return to the set target point one key, and wait for the operator to recover the aged biological membrane in the storage device 407. After the recovery is completed, the device will continue to operate.

[0028] The control and power supply unit 3 comprises a central controller 308, a positioning module 303, an environment sensing module, a solar power supply system; the solar power supply system comprises a solar panel 301 and a lithium iron phosphate battery pack 302; the positioning module 303 is a GPS positioning and wireless remote transmission module. The environment sensing module mainly comprises an obstacle avoidance radar 304, a depth measuring module 305, a flow direction detection module 306 and a water quality sensor 307. Each module is fixed on the floating body base 101 by a stainless steel screw rod, has good waterproof performance, and can stably operate in rainy and snowy weather or in a strong wave environment. All the electric power of the movable water source water quality in-situ improvement device is collected by the solar panel 301 and stored in the lithium iron phosphate battery pack 302. When the sunlight is sufficient, the solar panel 301 can directly supply power, the remaining electric power is stored in the lithium iron phosphate battery pack 302, and when the weather is not good, the lithium iron phosphate battery pack 302 supplies power. The GPS positioning and wireless remote transmission module can provide accurate positioning of the device and remotely transmit relevant position information, water quality information and operation conditions. The obstacle avoidance radar 304 and the depth measuring module 305 can avoid collision of the device with ships during operation and avoid the device running aground in low water level areas during operation, thereby ensuring the safety of the device operation.

[0029] The GPS positioning and wireless remote transmission module, the obstacle avoidance radar 304, the depth measuring module 305, the flow direction detection module 306 and the water quality sensor 307 can all transmit relevant information to the central controller 308. The central controller 308 is in wireless communication connection with a remote interaction terminal, and the remote interaction terminal is a control handle. The device can be controlled to run according to the running path, automatically avoid obstacles and shallow water areas, and avoid grounding. The flow direction detection module 306 is fixed below the floating body base 101 by a stainless steel screw rod, can monitor the water flow direction in real time and feed back data to the central controller 308, and automatically adjusts the movement direction of the device according to the flow direction, so that the water inlet is opposite to the water flow direction. The water quality sensor 307 has two parts, one of which is fixed below the water inlet, and the other of which is fixed below the water outlet. The water quality sensor 307 can record and transmit the key indicators such as the conductivity, pH value, dissolved oxygen, chlorophyll, ammonia nitrogen and COD of the inlet and outlet water to the central controller 308 in real time. The central controller 308 is located at the center of the floating body base, is connected with each unit by an actuator, and controls the start, stop, speed adjustment and direction adjustment of the propeller, the rotation control motor, the microporous aerator and the water pump, so as to ensure the coordinated operation of each functional unit of the platform.

[0030] The working principle of the present application is as follows: The movement and rotation of the mobile water source water quality in-situ improvement device, in-situ water quality purification, power supply and wireless control, backwashing and aging biological membrane shedding collection all the actions and related water quality data can be transmitted to the control handle in real time, and the specific conditions of each unit and water quality can be viewed through the touch screen of the control handle. When human control is needed to control the device running route, the control module of the control handle can send relevant instructions to the central controller 308, and then the device can automatically cruise according to the route or hover in a fixed position through the GPS positioning and wireless remote transmission module 303. When the continuous rainy weather causes the lithium iron phosphate battery pack 302 to be insufficient in power, the central controller 308 can automatically determine whether it needs to be charged, and send the power condition to the control handle. When the power is lower than the threshold value, the device can automatically return, and the operator can also manually charge the device returning, thereby ensuring the use ability of the device in rainy weather.

[0031] The application further discloses a water source water quality improvement method, which applies the mobile water source water quality in-situ improvement device. According to the monitored water quality data, the driving mechanism is controlled and adjusted to adjust the overlapping area of the inner wall 105 and the outer wall 106 with the water inlet hole 107, and the water inlet flow is set. In the water inlet hole opening state, the aeration assembly is started, and the biological membrane on the filler assembly is used to degrade pollutants. The outer wall 106 is controlled to rotate to the closed state in which the water inlet hole 107 and the water outlet hole 107 are completely misaligned, so as to form a closed cleaning space. In the closed cleaning space, the flushing desorption assembly is started to make the biological membrane fall off and float to the top, and the negative pressure collection assembly is used to extract and separate and store the floating biological membrane.

[0032] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A portable in-situ water quality improvement device, characterized in that, include: The mobile carrier platform (1) includes a floating base (101) capable of floating on the water surface and a propulsion assembly (102) disposed on the floating base (101). A flow-regulating purification chamber is connected below the floating base (101) and includes an inner wall (105) and an outer wall (106) arranged coaxially. Water inlet and outlet holes (107) are provided on the side walls of both the inner wall (105) and the outer wall (106). An adjustment drive mechanism is connected to the outer wall (106), which is configured to drive the outer wall (106) to rotate relative to the inner wall (105) to adjust the overlap of the water inlet and outlet holes (107) on the inner and outer walls, thereby switching between the open purification state and the closed regeneration state. The in-situ purification unit (2) is disposed in the internal space defined by the inner wall (105) and includes a packing assembly for attaching biofilm and an aeration assembly. The regeneration and collection system (4) includes a flushing and desorption assembly disposed in the flow regulating purification chamber and a negative pressure collection assembly communicating with the top space of the flow regulating purification chamber; the flushing and desorption assembly is configured to cause the biofilm to detach in the closed regeneration state, and the negative pressure collection assembly is configured to remove the detached and floating biofilm from the internal space. The control and power supply unit (3) is used to provide energy to the device and control the coordinated operation of the above units.

2. The portable in-situ water quality improvement device according to claim 1, characterized in that, A flow-guiding connection area is formed between the top of the inner wall (105) and the floating body base (101), and the flow-guiding connection area is constructed as a cavity structure with a top contraction; the negative pressure collection assembly includes an extraction pump (405), a biofilm separator (406) and a storage device (407), and the suction port of the extraction pump (405) is located at the top of the flow-guiding connection area and is configured to extract the detached biofilm that has gathered there due to buoyancy.

3. A portable in-situ water quality improvement device according to claim 2, characterized in that, The flow guiding connection area is in the shape of an inverted funnel; the inner wall (105) and the outer wall (106) are both cylindrical bodies, and a sealing element is provided between them.

4. A portable in-situ water quality improvement device according to claim 1, characterized in that, The adjustment drive mechanism includes a power source (103) and a transmission component (104) disposed on the floating body base (101); the upper end of the outer wall (106) is provided with a driven part, and the power source (103) drives the driven part through the transmission component (104); the transmission component (104) is any one of a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism.

5. A portable in-situ water quality improvement device according to claim 1, characterized in that, The packing assembly includes a fixed mesh frame (201), a suspension member (202), and spaced-fixed soft packing material (203), wherein the soft packing material (203) is configured to have a density greater than that of water after the biofilm is attached; The flushing and desorption assembly includes a flushing conduit connected to the bottom of the inner wall (105) and is configured to provide air flushing, water flushing, or air-water dual flushing modes.

6. A portable in-situ water quality improvement device according to claim 5, characterized in that, The regeneration and collection system (4) further includes an auxiliary excitation device (404), which is disposed on the inner surface of the inner wall (105) and configured to generate ultrasonic or mechanical vibrations to assist in the shedding of the biofilm.

7. A portable in-situ water quality improvement device according to claim 1, characterized in that, The control and power supply unit (3) includes a central controller (308), a positioning module (303), an environmental sensing module, and a solar power supply system; The environmental sensing module includes a water quality sensor (307) disposed in the inner wall (105) and a flow direction detection module (306), an obstacle avoidance radar (304) and a depth measurement module (305) disposed on the floating body base (101); the central controller (308) is configured to control the regulating drive mechanism to adjust the flow rate according to the feedback data of the water quality sensor (307).

8. A portable in-situ water quality improvement device according to claim 7, characterized in that, It also includes a remote interactive terminal, which is wirelessly connected to the central controller (308) and configured to display device status and send control commands; When the storage amount in the negative pressure collection component reaches a preset threshold, the central controller (308) sends a maintenance signal to the remote interactive terminal.

9. A portable in-situ water quality improvement device according to claim 1, characterized in that: The aeration assembly includes a microporous aerator (204) and a bottom aeration disc (207); the microporous aerator (204) is installed on the floating body base (101) and is connected to the bottom aeration disc (207) through an aeration pipe that extends into the internal space.

10. A method for improving the quality of a water source, comprising using a portable in-situ water source quality improvement device as described in any one of claims 1-9, characterized in that, Includes the following steps: Based on the monitored water quality data, control and adjust the action of the drive mechanism, adjust the overlapping area of ​​the inlet and outlet holes (107) of the inner wall (105) and the outer wall (106), and set the inlet flow rate; With the inlet hole open, start the aeration assembly to degrade pollutants using the biofilm on the packing assembly; Control the outer wall (106) to rotate to a closed state where the inlet and outlet holes (107) are completely offset, forming a closed cleaning space; In the enclosed cleaning space, the flushing and desorption unit is activated to detach the biofilm and make it float to the top. The negative pressure collection unit is then used to extract the floating biofilm and separate it for storage.

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