A water pollutant directional enrichment tracking system and method

Abstract

The application discloses a water body pollutant directional enrichment tracking system and method, and relates to the field of water body pollutant purification. The system comprises a carrier platform, a three-dimensional root field gradient purification array, a biomass sponge dynamic adsorption-desorption circulation system, a pollutant two-way electrode directional migration system, a root exudate-pollutant multi-parameter integrated sensing array, an intelligent control center and a solar power supply power system. The three-dimensional root field gradient purification array is used to remove pollutants by using aquatic plant roots. The biomass sponge dynamic adsorption-desorption circulation system is used to adsorb pollutants by using biomass sponges, and when a desorption instruction is received, the desorption device compresses the biomass sponge. When a reset instruction is received, the desorption device resets and releases the biomass sponge. The pollutant two-way electrode directional migration system is used to drive the directional migration of charged pollutants by using a micro electric field. The application can efficiently remove pollutants and has excellent purification effect on small and micro contaminated water bodies.

Description

Technical Field

[0001] This application belongs to the field of water ecological restoration technology, specifically relating to a system and method for directional enrichment and tracking of water pollutants. Background Technology

[0002] Traditional ecological carrier platform technology relies on plants to passively absorb pollutants, which has the following drawbacks: the carrier platform is fixed and cannot dynamically track the pollution diffusion path, resulting in insufficient treatment of local pollution-rich areas; it relies on natural diffusion and lacks technical means to actively increase the concentration of local pollutants; existing sensors are only used for data collection and do not form a closed loop with the motion control of the carrier platform; and the integration technology is not coordinated enough to achieve targeted tracking of pollutants.

[0003] Chinese patent CN221988326U discloses a micro-polluted water ecological purification device and treatment system, which uses a fixed adsorption layer and cannot adapt to dynamic pollution scenarios. Chinese patent CN222082583U proposes an assemblable biological floating bed, but it does not integrate intelligent navigation and pollutant tracking functions.

[0004] Therefore, in order to address the issue of pollutants in small water bodies being unable to move, accumulate, and dynamically adjust, a system is needed that can intelligently track and remove pollutants from small water bodies, be highly efficient, not generate secondary pollution, and be flexible in use. Summary of the Invention

[0005] The purpose of this application is to provide a system and method for targeted enrichment and tracking of pollutants in water bodies. This application achieves efficient removal of pollutants in water bodies through multi-dimensional synergy of a three-dimensional root domain gradient purification array, biomass sponge, and micro-electric field, and is also applicable to the removal of pollutants in small water bodies.

[0006] This application provides a system for targeted enrichment and tracking of pollutants in water bodies, including:

[0007] The carrier platform is a mobile carrier platform driven by a propulsion device installed on it;

[0008] A three-dimensional root zone gradient purification array, which is deployed on a carrier platform, is used to remove pollutants using the roots of aquatic plants.

[0009] A biomass sponge dynamic adsorption-desorption cycle system is installed at the center of the bottom of a carrier platform and includes a biomass sponge and a desorption device. The biomass sponge dynamic adsorption-desorption cycle system is used to adsorb pollutants using the biomass sponge, and when a desorption command is received, the desorption device compresses the biomass sponge; and when a reset command is received, the desorption device resets and releases the biomass sponge.

[0010] A bidirectional electrode-directed migration system for pollutants establishes a micro-electric field between the cathode and anode plates contained in the cathode and anode plates by means of a pair of anode and cathode plates arranged below the carrier platform.

[0011] A multi-parameter integrated sensor array for root exudates and pollutants is used to monitor water quality parameters and root exudate data of biomass sponges and water bodies near cathode and anode plates, and transmit the data to the intelligent control center.

[0012] The intelligent control center is used to control the propulsion device, desorption device, and bidirectional electrode directional migration system for pollutants;

[0013] A solar-powered power system, used to supply power to the system.

[0014] Optionally, the carrier platform is a mobile carrier platform, that is, a propulsion device is installed on the carrier platform to drive the carrier platform to move in the water.

[0015] Optionally, the three-dimensional root zone gradient purification array is configured such that the aquatic plant roots are in a concentric circle structure with the root length increasing from the inside to the outside; the concentric circle structure of aquatic plant roots has three concentric circles of aquatic plants, wherein the root length of the inner circle of aquatic plants is 10cm~20cm, the root length of the middle circle of aquatic plants is 20cm~40cm, and the root length of the outer circle of aquatic plants is 40cm~80cm.

[0016] Optionally, the biomass sponge dynamic adsorption-desorption cycle system further includes a cylindrical grid, which is fixed to the center of the bottom of the carrier platform, and the biomass sponge is disposed within the cylindrical grid; the desorption device is located below the biomass sponge and is configured to compress the biomass sponge.

[0017] When the biomass sponge becomes saturated with adsorption, the desorption device compresses the biomass sponge, thereby squeezing out the pollutants accumulated in the biomass sponge. Then, the desorption device keeps the biomass sponge compressed, and the accumulated pollutants migrate to the root area of ​​aquatic plants. After the migration is completed, the desorption device resets, the biomass sponge is decompressed, and due to the local negative pressure, it is drawn into the surrounding water, re-accumulating low-concentration pollutants, thus completing the adsorption-desorption cycle.

[0018] Optionally, the bidirectional electrode directional migration system for pollutants includes two sets of electrode plates, which are evenly distributed in the region between the middle and outer layers of the root system.

[0019] Optionally, the root exudate-pollutant multi-parameter integrated sensor array includes several integrated probes, which are arranged as follows: an integrated probe is installed at the upper and lower edges of the outer side of each cathode plate and each anode plate, and an integrated probe is installed at the upper and lower edges of the biomass sponge, thus forming a sensor array.

[0020] This application also provides a method for targeted enrichment and tracking of pollutants in water bodies, employing the aforementioned targeted enrichment and tracking system for water pollutants, including the following steps:

[0021] S100: Root exudate-pollutant multi-parameter integrated sensor array collects water quality parameters and root exudate data, and transmits them to the intelligent control center;

[0022] S200: The intelligent control center establishes a pollutant distribution model for the target water body based on water quality parameters and root exudate data, and controls the operation based on a multimodal control strategy;

[0023] S300: When the biomass sponge is saturated with adsorption, the intelligent control center sends a desorption command to the desorption device. The desorption device compresses the biomass sponge and maintains the compressed state until it receives a reset command from the intelligent control center. The desorption device then resets and releases the biomass sponge.

[0024] Optionally, the pollutant distribution model can be established as follows: Since the root exudate-pollutant multi-parameter integrated sensing array includes several integrated probes distributed in the horizontal and vertical directions, the longitudinal distribution of pollutants in the vertical dimension and the lateral distribution of pollutants in the horizontal dimension can be obtained based on the pollutant concentration data collected by these integrated probes.

[0025] Optionally, the multimodal control strategy during operation includes directional tracking mode, passive capture mode, and specific mode;

[0026] In the directional tracking mode, the pollutant diffusion direction is obtained from the pollutant distribution model. The intelligent control center controls the propulsion device to drive the carrier platform to move along the diffusion direction. During the movement, step S300 is executed. The pollutant diffusion direction is calculated by calculating the growth rate of the pollutant concentration collected this time relative to the pollutant concentration collected last time at preset intervals. The direction of the maximum growth rate is the pollutant diffusion path.

[0027] In passive capture mode, the intelligent control center controls the propulsion device to keep the carrier platform stationed in the target area, and continues to execute step S300 during the process.

[0028] In a specific mode, when the pollutant concentration is higher than a certain value, the intelligent control center controls the desorption device to compress the biomass sponge.

[0029] Optionally, the saturation of biomass sponges can be determined using the following method:

[0030] The intelligent control center collects pollutant concentrations in the water near the biomass sponge at preset intervals and compares the pollutant concentrations before and after the two collections. If the change in the pollutant concentration collected this time is lower than the preset change threshold, it is judged that the adsorption is saturated. When adsorption is judged to be saturated, the intelligent control center sends a desorption command to the desorption device.

[0031] Furthermore, when the biomass sponge is compressed by the desorption device, if the compression time reaches the preset time or the concentration of pollutants in the water near the biomass sponge drops to a specific value, the intelligent control center sends a reset command to the desorption device.

[0032] The technical solution provided in this application may include the following beneficial effects:

[0033] The system in this application achieves efficient removal of pollutants through the synergy of a three-dimensional root domain gradient purification array, a biomass sponge dynamic adsorption-desorption cycle system, and a pollutant bidirectional electrode directional migration system.

[0034] In this application system, the intelligent control center constructs a pollutant distribution model in the water body based on water quality parameter data collected by a multi-parameter integrated sensor array of root exudates and pollutants. Based on the pollutant distribution model, pollutants are tracked in a targeted manner, which can avoid the local enrichment of pollutants in the water body, thereby achieving comprehensive removal of pollutants from the water body.

[0035] This application has low maintenance costs, high efficiency in removing pollutants, and is environmentally friendly. It also has excellent purification effects on small and slightly polluted water bodies.

[0036] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0037] The above and other objects, features and advantages of this application will become more apparent from the following description of exemplary embodiments of this application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of this application.

[0038] Figure 1 This is a schematic diagram of a specific structure of the system in this application;

[0039] Figure 2 This is a functional block diagram of the system in an embodiment of this application.

[0040] Reference numerals: Carrier platform 100, propeller 110, three-dimensional root zone gradient purification array 200, aquatic plant 210, root system 211, root container 220, biomass sponge dynamic adsorption-desorption circulation system 300, biomass sponge 310, desorption device 320, grid sleeve 330, pollutant bidirectional electrode directional migration system 400, anode plate 410, cathode plate 420, root exudate-pollutant multi-parameter integrated sensor array 500, integrated probe 510, intelligent control center 600, solar power system 700, first solar panel 710, second solar panel 720, capacitor 730. Detailed Implementation

[0041] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. While specific embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited to the specific embodiments set forth herein. Rather, these specific embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0042] like Figure 1 As shown in the embodiment of this application, a water pollutant targeted enrichment and tracking system includes a carrier platform 100, a three-dimensional root domain gradient purification array 200, a biomass sponge dynamic adsorption-desorption cycle system 300, a pollutant bidirectional electrode targeted migration system 400, a root exudate-pollutant multi-parameter integrated sensor array 500, an intelligent control center 600, and a solar power system 700.

[0043] In this embodiment, the carrier platform 100 is circular, typically with a diameter of 2m to 3m. The diameter is adjusted according to the actual size of the water body and the degree of water pollution. In this embodiment, the diameter of the carrier platform 100 is 3m to ensure sufficient installation space for the system it supports. The carrier platform 100 is primarily made of high-density polyethylene, which is lightweight and suitable for filling. Combined with a small number of stainless steel supports, it can achieve both high buoyancy and high load-bearing capacity.

[0044] Furthermore, the carrier platform 100 is a mobile carrier platform, meaning that a propulsion device is installed on the carrier platform 100. This propulsion device is a propeller-based device powered by a solar-powered power system 700. Specifically, a three-phase propeller 110 is arranged below the biomass sponge dynamic adsorption-desorption cycle system 300. The three-phase propeller 110 consists of three propellers arranged in an equilateral triangle, with each adjacent propeller forming a 120° angle with the line connecting it to the center of the equilateral triangle. Each propeller has a speed range of 0-300 rpm and can be independently frequency-controlled. The three-phase propeller 110 is mounted on a metal bracket connected to the carrier platform 100. Driving the carrier platform 100 through the three-phase propeller 110 ensures its flexibility in stopping, moving forward, and turning.

[0045] The three-dimensional root zone gradient purification array 200 utilizes the aquatic plant root system located within the water body to remove pollutants through absorption, enrichment, and degradation, thereby achieving water purification. The three-dimensional root zone gradient purification array 200 is configured such that the aquatic plant root system forms a concentric circle structure with increasing root length from the inside out, allowing the plant roots to fully cover different depths of the water body for multi-level water purification.

[0046] In this embodiment, three concentric layers of aquatic plants with root lengths of different types are arranged according to the root growth characteristics of different aquatic plants. The three concentric layers of aquatic plants have a concentric circle structure, with the root length of each layer increasing from the inside out. These are designated as the inner, middle, and outer layers. The root length of the inner layer aquatic plants is 10cm~20cm, and the aquatic plants can be selected from, but are not limited to, rush, canna lily, and pickerelweed. The root length of the middle layer aquatic plants is 20cm~40cm, and the aquatic plants can be selected from, but are not limited to, calamus, loosestrife, and yellow iris. The root length of the outer layer aquatic plants is 40cm~80cm, and the aquatic plants can be selected from, but are not limited to, reed, cattail, and water onion. Through the three layers of the three-dimensional root domain gradient purification array 200, pollutants are effectively concentrated and purified layer by layer, maximizing the purification efficiency of pollutants around the plant roots.

[0047] Specifically, aquatic plants 210 are planted in root containers 220, which are placed on the carrier platform 100, with the roots 211 of the aquatic plants 210 located in the water. The root containers 220 are filled with a planting substrate, which can be lightweight expanded clay pebbles with good permeability, drainage, and water retention. For environmental reasons, non-toxic plastic is used for the root containers 220. Furthermore, the inner, middle, and outer layers are spaced 20m apart, with 10, 15, and 20 root containers 220 respectively, each with a bottom diameter of 20cm.

[0048] The 300-type biomass sponge dynamic adsorption-desorption circulation system removes pollutants from water using the powerful adsorption properties of sponge materials. The biomass sponge utilizes highly porous adsorption materials, primarily made from biomass materials such as wood pulp, chitosan, seaweed polysaccharides, rice husk straw fiber, and coconut shell activated carbon. Cellulose sponges possess a rich microporous structure, chitosan sponges have a special affinity for metal ions, and alginate sponges have excellent ion exchange capabilities. The combination of various biomass sponges effectively adsorbs pollutants such as organic matter, heavy metals, and phosphates in water, thereby achieving efficient water remediation.

[0049] Biomass sponges are generally cylindrical. In this embodiment, three sheet-like sponges with a diameter of 40cm and a height of 20cm are stacked to form a biomass sponge 310 with a height of 60cm. Of course, the size of the biomass sponge 310 and the number of sheet-like sponges it contains are not limited to this. The size of the biomass sponge 310 and the number of sheet-like sponges it contains can be flexibly adjusted according to the size of the water body and the degree of water pollution.

[0050] The biomass sponge 310 is fixed to the center of the bottom of the carrier platform 100 by a cylindrical mesh 320 made of stainless steel. The cylindrical mesh 320 is used to ensure the stability of the biomass sponge 310 in the water and to ensure full contact between the water and the biomass sponge 310, thereby enhancing the adsorption efficiency of the biomass sponge 310. The desorption device 330 is located below the biomass sponge 310 and is configured to compress the biomass sponge 310. The main body of the desorption device 330 is made of aluminum alloy and is configured to directly act on the desorption process of the biomass sponge 310. It is fixed by a metal bracket connected to the bottom of the carrier platform 100.

[0051] In this embodiment, the desorption device includes a hydraulic cylinder and an extrusion member connected to the outer end of the piston rod of the hydraulic cylinder; when a desorption command is received, the piston rod drives the extrusion member to compress the biomass sponge; and when a reset command is received, the piston rod drives the extrusion member to reset and release the biomass sponge.

[0052] When water flows through the biomass sponge 310, pollutants are adsorbed into the pores of the biomass sponge 310, especially in water bodies with low concentrations of pollutants, where the adsorption and enrichment effect of the biomass sponge 310 is particularly prominent. When the biomass sponge 310 becomes saturated with adsorption, the desorption device 330, upon receiving a desorption command, compresses the biomass sponge 310, reducing its porosity by 60% to 70%, thus promoting the separation of adsorbed ionic pollutants from the biomass sponge 310. After a suitable compression time, the desorption device 330 returns to its original state, releasing the pressure on the compressed biomass sponge 310. The compressed biomass sponge 310 expands back to its original shape, creating a local negative pressure that draws in fresh water and re-adsorbs pollutants. During this process, the compressed biomass sponge 310 will reach a compression rate of 60%.

[0053] The bidirectional electrode-guided migration system 400 for pollutants is used to drive charged pollutants in water to migrate to a specific area through an electric field. An electric field is generated by arranging an anode plate 410 and a cathode plate 420 opposite each other in the water and energizing them. The voltage ranges from 1V to 10V. In this embodiment, the distance between the anode and cathode plates is 2m, resulting in a maximum electric field strength of 5V / m. The anode plate is typically made of titanium-based ruthenium-iridium, and the cathode plate is typically made of stainless steel. The electrode plates are positioned between the middle and outer layers of the root system, and are located below the middle layer of the root system. Therefore, the activation of the electric field does not disturb the root system, thus not affecting plant growth. Simultaneously, it can also direct charged pollutants in the water (such as ammonia nitrogen, heavy metal ions, phosphates, etc.) to the biomass sponge 310 and / or the plant root area, reducing the diffusion and transfer of pollutants and allowing them to migrate to a specific area, thereby improving the removal efficiency of pollutants in that specific area.

[0054] In this embodiment, the bidirectional electrode-directed migration system 400 for pollutants includes two sets of electrode plates. Each set of electrode plates includes a cathode plate and an anode plate arranged opposite each other, with the two sets of electrode plates at a 90-degree angle. The number of sets of electrode plates, the installation angle, the distance between the electrode plates, and the electric field voltage can be adjusted according to actual conditions (such as the type and concentration of pollutants) to precisely control the electric field strength and direction, thereby achieving bidirectional migration of pollutants.

[0055] The root exudate-pollutant multi-parameter integrated sensor array 500 uses various probes rationally arranged according to the size of the carrier platform 100 and the density of aquatic plant roots. These probes monitor multiple indicators in the water, including dissolved oxygen, pH, temperature, phosphate concentration, turbidity, and root exudates, ensuring the system can sense water quality changes in real time and make adjustments accordingly. The pH sensor monitors changes in the water's acidity and alkalinity; the temperature sensor monitors changes in water temperature; the phosphate sensor specifically monitors phosphate concentration in the water to help assess the degree of eutrophication; the turbidity sensor monitors the turbidity of the water; and the root exudate probe utilizes root exudates as an organic carbon source, which is recognized and reacted by the probe sensor, generating heat changes that can be converted into electrical signals. All these probes are combined into an integrated probe 510, which transmits data to the intelligent control center 600 via a data cable.

[0056] In this embodiment, the integrated probes 510 are installed on the outer side of each electrode plate and near the biomass sponge 310. Specifically, one integrated probe 510 is installed at the upper and lower edges of the outer side of each electrode plate, and one integrated probe 510 is installed at the upper and lower edges of the cylindrical grid 320, for a total of 10 integrated probes 510, forming a sensing array.

[0057] The solar-powered power system 700 provides continuous power to the micro-electric field, desorption device 330, integrated probe 510, intelligent control center 600, etc. In this embodiment, the solar-powered power system 700 includes a first solar panel 710, a second solar panel 720, and a high-density capacitor 730; the first solar panel 710 and the second solar panel 720 are mounted on the surface of the carrier platform 100 to ensure maximum sunlight reception and conversion of the received light energy into electrical energy; the use of two solar panels ensures continuous operation and withstands uncontrollable factors, such as the failure of one panel while the other continues to function normally; the high-density capacitor 730 stores electrical energy and ensures normal operation of the system in extreme weather and at night.

[0058] Furthermore, the frames of the first solar panel 710 and the second solar panel 720 are made of aluminum alloy, which has good corrosion resistance and strength, and can remain stable in long-term aquatic environments. The first solar panel 710 and the second solar panel 720 are installed using adjustable brackets, allowing the angle of the first solar panel 710 and the second solar panel 720 to be adjusted according to seasonal changes or geographical location, ensuring that the first solar panel 710 and the second solar panel 720 capture the optimal angle of sunlight. The power cables of all modules requiring power are protected by hollow tubes of the unfilled substrate of the carrier platform 100.

[0059] The intelligent control center 600 is used to control the propulsion device, the desorption device 330, and the bidirectional electrode directional migration system for pollutants 400.

[0060] In this application, water purification is achieved through the synergy of a three-dimensional root zone gradient purification array 200, a biomass sponge dynamic adsorption-desorption circulation system 300, and a pollutant bidirectional electrode directional migration system 400. In this embodiment, the positional relationship among the three components is as follows: the biomass sponge dynamic adsorption-desorption circulation system 300 is located in the center, the three-dimensional root zone gradient purification array 200 surrounds the biomass sponge dynamic adsorption-desorption circulation system 300, and the electrode plates in the pollutant bidirectional electrode directional migration system 400 are disposed in the region between the middle and outer layers of the root system, and the resulting electric field can cover the biomass sponge 310 and most of the root system region.

[0061] The synergy of the three-dimensional root domain gradient purification array 200, the biomass sponge dynamic adsorption-desorption cycle system 300, and the pollutant bidirectional electrode directional migration system 400 includes:

[0062] First, pollutants are enriched. The micro-electric field directs pollutants from the water to the biomass sponge 310, where it adsorbs low-concentration pollutants, thus enriching them within the sponge. Second, pollutants are desorbed. When the biomass sponge 310 is desorbed, the micro-electric field evenly migrates high-concentration pollutants from its surrounding area to the plant root zone. Finally, pollutants are removed. Under the influence of the micro-electric field, pollutants migrate directionally from the biomass sponge 310 to the plant root zone. The layered arrangement of the three-dimensional root zone gradient purification array 200 reduces or even prevents pollutant diffusion, thereby efficiently removing pollutants. During this process, the pollutant concentration continuously decreases, and the absorption efficiency of the plant roots gradually decreases. At this point, under the influence of the micro-electric field, the pollutants are again migrated to the biomass sponge 310, forming a new synergistic cycle.

[0063] Furthermore, during the pollutant removal process, if the plant roots on one side are not growing well and the biomass is insufficient, the direction of the electric field can be controlled to allow more pollutants to migrate to that side.

[0064] This application embodiment also provides an operation method based on the above system. Before operation, the following preparatory work is required: Based on the initial pollution status of the water body, suitable aquatic plants are selected and transplanted into the planting substrate of the carrier platform 100 to construct a three-dimensional root zone gradient purification array. Then, the system is started and operated according to the following steps:

[0065] S100: Root exudate-pollutant multi-parameter integrated sensor array 500 collects water quality parameters and root exudate data, and transmits them to the intelligent control center 600;

[0066] S200: The intelligent control center 600 establishes a pollutant distribution model for the target water body based on water quality parameters and root exudate data, and determines the initial operating conditions of the device based on a multimodal control strategy;

[0067] S300: When operating under predetermined conditions, the biomass sponge 310 adsorbs pollutants in the water. When the biomass sponge 310 becomes saturated, the intelligent control center 600 sends a desorption command to the desorption device 330. The desorption device 330 compresses and maintains the compression of the biomass sponge 310, causing the pollutants adsorbed by the biomass sponge 310 to separate from the biomass sponge 310. The separated pollutants migrate directionally to the plant root zone under the drive of the electric field. The pollutants that have migrated to the plant root zone are removed by the roots through absorption, enrichment, and degradation, thereby completing the water purification.

[0068] The desorption device 330 keeps the biomass sponge 310 compressed until it receives a reset command from the intelligent control center 600. The desorption device 330 resets and releases the biomass sponge 310. The biomass sponge 310 expands and recovers due to the pressure release. This process creates a local negative pressure and automatically draws in the surrounding water to prepare for the next round of adsorption.

[0069] Through the adsorption-desorption cycle of biomass sponge 310, pollutants are efficiently enriched and removed.

[0070] During operation, since an integrated probe 510 is installed near the biomass sponge 310, the intelligent control center 600 collects water quality parameter data near the biomass sponge 310 every preset time interval (e.g., 1 hour to 2 hours) and determines whether the biomass sponge 310 is saturated by comparing the water quality parameter data from the previous two collections. Specifically, if the change in pollutant concentration from the previous collection is less than a preset change threshold, it is determined that the biomass sponge is saturated. In this embodiment, the change threshold is set to 10%. Once adsorption saturation is determined, the intelligent control center 600 sends a desorption command to the desorption device 330.

[0071] When the desorption device 330 compresses the biomass sponge 310, the intelligent control center 600 sends a reset command to the desorption device 330 when the compression time reaches a preset duration, ensuring that the pollutants accumulated in the biomass sponge 310 have completely migrated to the plant root zone; or, when the pollutant concentration in the water near the biomass sponge 310 drops to a specific value, indicating that the pollutants accumulated in the biomass sponge 310 have completely migrated, the intelligent control center 600 sends a reset command to the desorption device 330. The specific value is preset.

[0072] In step S200, the intelligent control center 600 uses the root exudate-pollutant multi-parameter integrated sensor array 500 to achieve three-dimensional acquisition of pollutant concentration data in the water body. As mentioned above, the root exudate-pollutant multi-parameter integrated sensor array 500 includes several integrated probes 510 distributed in the horizontal and vertical directions. Based on the pollutant concentration data collected by these integrated probes 510, a pollutant distribution model is constructed. This pollutant distribution model can reflect the distribution trend of pollutants in the horizontal and vertical directions. Based on the pollutant distribution model, regression model algorithm and other intelligent algorithms, different operating parameters are optimized and adjusted to generate a multimodal response strategy.

[0073] Specifically, in the vertical dimension, the longitudinal distribution of pollutants is obtained based on the data from the integrated probe 510 in the surface / middle layer; here, the integrated probe 510 in the surface / middle layer refers to the integrated probes deployed in the upper and lower layers as submitted above; in the horizontal dimension, the lateral distribution of pollutants is obtained based on the data from the integrated probe 510 in the center / edge; in the time dimension, the source is traced by associating changes in root exudates with temperature.

[0074] In this embodiment, the multimodal response strategy includes three types, as follows:

[0075] (1) Directional tracking mode: the pollutant diffusion path is obtained from the pollutant distribution model, and the intelligent control center 600 drives the carrier platform 100 to move along the pollutant diffusion path, while maintaining the execution step S300 during the movement; this mode can remove pollutants at the current location and along the way.

[0076] The driving method for the above pollutant diffusion path is as follows: calculate the growth rate of the pollutant concentration collected this time relative to the pollutant concentration collected last time at preset time intervals, and the direction of the maximum growth rate is the pollutant diffusion path.

[0077] (2) Passive capture mode, the carrier platform 100 stays in the target area and continues to execute step S300 during the process;

[0078] (3) In specific water environments, the concentration of pollutants in the water is high and the concentration of pollutants enriched and desorbed by the biomass sponge is not much different. Only a micro electric field is needed to achieve high-efficiency removal. At this time, the biomass sponge is in a compressed state, which protects the service life of the biomass sponge.

[0079] The intelligent control center 600 uses a multi-source probe of a pollutant sensor array to achieve three-dimensional acquisition of pollutant data in water, processes the data and establishes a pollutant distribution model, then determines the operating conditions and makes corresponding decisions, issues control commands, and each module receives the commands and works together to track and remove pollutants in a targeted manner. After the multi-source probe detects that the removal effect has reached the standard, each module makes adjustments and moves to the next pollution source according to the pollutant distribution model.

[0080] In this application, the intelligent control center 600 includes a data receiving and analysis module, a GPS positioning module, and a command issuing module. Its core module is the data receiving and analysis module, which receives sensor data, processes and analyzes it in real time, and makes decisions. The intelligent control center utilizes a multi-source probe array of pollutants to achieve three-dimensional acquisition of pollutant data in the water body, processes the data, establishes a pollutant distribution model, then determines the operating conditions and makes corresponding decisions, issuing control commands. Each module receives the commands and coordinates to directionally track and remove pollutants. After the multi-source probes detect that the removal effect has reached the standard, each module adjusts and moves to the next pollution source according to the pollutant distribution model. The GPS positioning module is used to locate the system's position in the water body, ensuring that the system does not operate in the same area repeatedly. The command issuing module issues commands based on the data analysis results, controlling the electric field strength of the micro-electric field, the movement direction of the carrier platform, and the start and stop of the desorption device, etc.

[0081] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A targeted enrichment and tracking system for water pollutants, characterized in that, include: The carrier platform is a mobile carrier platform driven by a propulsion device installed on it; A three-dimensional root zone gradient purification array, which is deployed on a carrier platform, is used to remove pollutants using the roots of aquatic plants. A biomass sponge dynamic adsorption-desorption cycle system is installed at the center of the bottom of a carrier platform and includes a biomass sponge and a desorption device. The biomass sponge dynamic adsorption-desorption cycle system is used to adsorb pollutants using the biomass sponge, and when a desorption command is received, the desorption device compresses the biomass sponge; and when a reset command is received, the desorption device resets and releases the biomass sponge. A bidirectional electrode-directed migration system for pollutants establishes a micro-electric field between the cathode and anode plates contained in the cathode and anode plates by means of a pair of anode and cathode plates arranged below the carrier platform. A multi-parameter integrated sensor array for root exudates and pollutants is used to monitor water quality parameters and root exudate data of biomass sponges and water bodies near cathode and anode plates, and transmit the data to the intelligent control center. The intelligent control center is used to control the propulsion device, desorption device, and bidirectional electrode directional migration system for pollutants; A solar-powered power system, used to supply power to the system; The positional relationship among the three-dimensional root domain gradient purification array, the biomass sponge dynamic adsorption-desorption cycle system, and the pollutant bidirectional electrode directional migration system is as follows: the biomass sponge dynamic adsorption-desorption cycle system is located in the center, the three-dimensional root domain gradient purification array surrounds the biomass sponge dynamic adsorption-desorption cycle system, and the electrode plates in the pollutant bidirectional electrode directional migration system are set in the area between the middle and outer layers of the root system, and the electric field formed can cover the biomass sponge and most of the root system area. In the dynamic adsorption-desorption cycle system of biomass sponges, when the biomass sponge is saturated with adsorption, the desorption device compresses the biomass sponge, thereby squeezing out the pollutants accumulated in the biomass sponge; then the desorption device keeps the biomass sponge compressed, and the accumulated pollutants migrate to the root area of ​​aquatic plants; after the migration is completed, the desorption device resets, the biomass sponge is decompressed, and due to the local negative pressure, it is drawn into the surrounding water, re-accumulating low-concentration pollutants, thus completing the adsorption-desorption cycle.

2. The water pollutant targeted enrichment and tracking system as described in claim 1, characterized in that: The carrier platform is a mobile carrier platform, that is, a propulsion device is installed on the carrier platform to drive the carrier platform to move in the water.

3. The water pollutant targeted enrichment and tracking system as described in claim 1, characterized in that: The three-dimensional root zone gradient purification array is configured such that the aquatic plant roots are in a concentric circle structure with the root length increasing from the inside to the outside. The concentric circle structure of the aquatic plant roots has three concentric circles of aquatic plants, wherein the root length of the inner circle of aquatic plants is 10cm~20cm, the root length of the middle circle of aquatic plants is 20cm~40cm, and the root length of the outer circle of aquatic plants is 40cm~80cm.

4. The water pollutant targeted enrichment and tracking system as described in claim 1, characterized in that: The biomass sponge dynamic adsorption-desorption cycle system also includes a cylindrical grid, which is fixed at the center of the bottom of the carrier platform, and the biomass sponge is placed inside the cylindrical grid; the desorption device is located below the biomass sponge and is configured to compress the biomass sponge.

5. The water pollutant targeted enrichment and tracking system as described in claim 1, characterized in that: The bidirectional electrode directional migration system for pollutants includes two sets of electrode plates, which are evenly distributed in the region between the middle and outer layers of the root system.

6. The water pollutant targeted enrichment and tracking system as described in claim 1, characterized in that: The root exudate-pollutant multi-parameter integrated sensing array includes several integrated probes. The arrangement of the integrated probes is as follows: an integrated probe is installed at the upper and lower edges of the outer side of each cathode plate and each anode plate, and an integrated probe is installed at the upper and lower edges of the biomass sponge, thus forming a sensing array.

7. A method for targeted enrichment and tracking of pollutants in water bodies, characterized by: The water pollutant targeted enrichment and tracking system according to any one of claims 1 to 6 includes the following steps: S100: Root exudate-pollutant multi-parameter integrated sensor array collects water quality parameters and root exudate data, and transmits them to the intelligent control center; S200: The intelligent control center establishes a pollutant distribution model for the target water body based on water quality parameters and root exudate data, and controls the operation based on a multimodal control strategy; S300: When the biomass sponge is saturated with adsorption, the intelligent control center sends a desorption command to the desorption device. The desorption device compresses the biomass sponge and maintains the compressed state until it receives a reset command from the intelligent control center. The desorption device then resets and releases the biomass sponge.

8. The method for targeted enrichment and tracking of water pollutants as described in claim 7, characterized in that: The pollutant distribution model is established as follows: Since the root exudate-pollutant multi-parameter integrated sensor array includes several integrated probes distributed in the horizontal and vertical directions, the longitudinal distribution of pollutants in the vertical dimension and the lateral distribution of pollutants in the horizontal dimension can be obtained based on the pollutant concentration data collected by these integrated probes.

9. The method for targeted enrichment and tracking of water pollutants as described in claim 7, characterized in that: The multimodal control strategy used in the operation includes directional tracking mode, passive capture mode, and specific mode. In the directional tracking mode, the pollutant diffusion direction is obtained from the pollutant distribution model. The intelligent control center controls the propulsion device to drive the carrier platform to move along the diffusion direction. During the movement, step S300 is executed. The pollutant diffusion direction is calculated by calculating the growth rate of the pollutant concentration collected this time relative to the pollutant concentration collected last time at preset intervals. The direction of the maximum growth rate is the pollutant diffusion path. In passive capture mode, the intelligent control center controls the propulsion device to keep the carrier platform stationed in the target area, and continues to execute step S300 during the process. In a specific mode, when the pollutant concentration is higher than a certain value, the intelligent control center controls the desorption device to compress the biomass sponge.

10. The method for targeted enrichment and tracking of water pollutants as described in claim 7, characterized in that: The saturation of the biomass sponge was determined using the following method: The intelligent control center collects pollutant concentrations in the water near the biomass sponge at preset intervals and compares the pollutant concentrations before and after the two collections. If the change in the pollutant concentration collected this time is lower than the preset change threshold, it is judged that the adsorption is saturated. When adsorption is judged to be saturated, the intelligent control center sends a desorption command to the desorption device. Furthermore, when the biomass sponge is compressed by the desorption device, if the compression time reaches the preset time or the concentration of pollutants in the water near the biomass sponge drops to a specific value, the intelligent control center sends a reset command to the desorption device.

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