48 results about "Contaminated Substance" patented technology

The invention relates to the technical field of atmospheric pollutant removal, in particular to an atmospheric pollutant removal device which comprises a removal tank and an impurity removal plate arranged on the inner side of the removal tank, one side of the removal tank is provided with an air inlet pipe, one end of the air inlet pipe is provided with a pressurizing pipe, the pressurizing pipe is connected with the removal tank, and the impurity removal plate is arranged on the inner side of the removal tank. And a preliminary filtering plate is arranged on the inner side of the air inlet pipe. Through the arrangement of the preliminary filter plate, preliminary impurity filtration can be performed on atmosphere conveyed into the removal tank, so that the replacement time of the impurity removal plate can be prolonged, the use cost of the device is reduced, the disassembly and assembly steps between the preliminary filter plate and the removal tank are simplified through the arrangement of the connecting assembly, the replacement efficiency of the preliminary filter plate is improved, and the use cost of the device is reduced. By arranging the filter plate cleaning assembly, dust impurities filtered on the preliminary filter plate can be cleaned, so that the replacement time of the preliminary filter plate can be prolonged, and the removal cost of atmospheric pollutants is reduced.

The invention discloses a toilet excrement low-temperature composting complex microbial inoculant and a preparation method thereof, and relates to the technical field of microorganisms. In order to solve the problem that the composting process is difficult to start under the low-temperature condition (less than or equal to 15 DEG C), and the toilet excrement treatment effect is seriously influenced, the toilet excrement low-temperature composting complex microbial inoculant disclosed by the invention is prepared from stenotrophomonas pavanii (Stennotrophomonas pavanii) R3, pseudomonas pseudomonas (Massiella pseudomonas R4 and pseudomonas kackmussii) R6. The invention further discloses a preparation method of the toilet excrement low-temperature composting complex microbial inoculant, and the preparation method of the toilet excrement low-temperature composting complex microbial inoculant disclosed by the invention has the advantages that the problem that the toilet excrement treatment effect is seriously influenced is solved; the complex microbial inoculant can promote smooth temperature rise starting of the toilet manure compost at low temperature, can accelerate and thoroughly biodegrade pollutants in the toilet manure compost, accelerates the fermentation process of the toilet manure compost at low temperature, improves the quality of compost products, and is applied to the field of low-temperature compost.

The application discloses a method for recovering nickel and phosphorus from electroless nickel plating waste liquid, and the method comprises the following steps: preparing nickel sulfate through extraction and stripping, and preparing iron phosphate through Fenton oxidation and precipitation; compared with the prior art, the method is characterized in that the waste liquid is pretreated, insoluble solid particles in the waste liquid are removed, emulsification of an extractant caused by particles in a subsequent extraction process is prevented, damage to extraction oil is avoided, and the extraction efficiency is ensured; in addition, the extractant used in the method can be recycled, secondary pollution is avoided, and the method is economical and practical; in the method, main pollutants in waste water are all converted into important chemical raw materials, recycling is realized, sulfuric acid and Fenton reagents used are all converted into terminal products, difficulty of end waste water treatment is not increased, clean production is met, the treatment cost is low, the product has high added value, and the method has strong practicability.

The invention relates to an air passage structure of an atomizing device, which comprises a shell and an atomizing core, and is characterized in that the shell is provided with at least one substance storage passage and at least one air passage; and the at least one substance storage channel and the at least one gas channel are mutually independent. According to the atomization device, the substance storage channel and the air channel are independent of each other, so that the atomized substance flowing out of the atomization device is separated from the substance storage channel, a user can suck the atomized substance after atomization, the atomized substance to be atomized cannot be sucked in, and the atomization device is safe and sanitary. In addition, when atomized substances are injected into the substance storage channel, the channel opening of the substance storage channel may be polluted. In addition, due to the fact that the substance storage channel and the air channel are independent of each other, a user can avoid a channel opening of the polluted substance storage channel and cannot make contact with the channel opening of the polluted substance storage channel, and safety and sanitation of the atomization device are further guaranteed.

The invention discloses an intelligent monitoring method, system and device for wet-process multi-stage internal circulation purification of the Internet of Things, and relates to the technical field of wet-process purification monitoring, and the method comprises the following steps: 1, collecting multi-dimensional circulation purification data in real time, carrying out the data preprocessing, and carrying out the preliminary evaluation of the removal efficiency of pollutants; 2, constructing a cyclic purification directed flow graph, constructing a cyclic purification time sequence prediction model on the basis of the cyclic purification directed flow graph, and judging local pollutant mass accumulation and amplification according to prediction output; 3, based on the real-time local judgment result, risk assessment is conducted on the whole cycle purification process, and grading early warning measures are taken; step 4, performing intelligent visual data governance through multi-dimensional cyclic purification data and a risk assessment result; the problem that pollutants are repeatedly accumulated in subsequent circulation to form local abnormal sources due to the fact that the efficiency of part of treatment units is reduced in the purification process is solved.

The application discloses a preparation method of a specific adsorption material for solving heavy metal endogenous pollution in water bodies. The specific ecological adsorption material is mainly made of ecological materials such as chitosan, natural clinoptilolite and specific adsorption material for specific pollutants in specific areas, and has the function of treating various endogenous pollutants in river channels. The specific ecological adsorption material uses natural clinoptilolite to enhance the mechanical strength of the chitosan hydrogel material, so that it can still maintain a stable cross-linked network structure under the action of a certain hydraulic intensity and external force, and provides a loading site for the specific adsorption material for specific pollution. The chitosan and natural clinoptilolite in the specific ecological adsorption material have strong fixing capacity for heavy metal pollution, and in addition, the natural clinoptilolite also has strong adsorption performance for organic pollutants such as ammonia and nitrogen; and the loading of the specific adsorption material can realize targeted removal of certain pollutants in the environment.

The invention relates to the technical field of underground environmental pollution prevention and control of refuse landfills, in particular to a method for evaluating vertical difference of performance of blocking pollutants by a clay separating wall, which comprises the following steps: S1, measuring physical characteristic parameters of a separating wall material and migration parameters of the pollutants in the separating wall material; s2, performing stress distribution analysis on the isolation wall, and establishing a relational expression based on the physical characteristic parameters of the isolation wall material, the effective stress of the isolation wall and the depth of the wall body; s3, on the basis of the relational expression and the pollutant transport law, constructing a pollutant transport model in the depth direction of the wall body of the isolation wall; and S4, predicting the migration time of the pollutants in the clay separating wall through the pollutant migration model, and evaluating the vertical difference of the blocking performance of the separating wall to the pollutants based on the migration time difference at different depths. According to the evaluation method, accurate evaluation of the vertical difference of the antifouling performance of the isolation wall is realized, and the reliability of the evaluation result and the engineering guidance value are improved.

The application discloses a kind of quantitative tidal river section pollutant flux analysis method, comprising the following steps: S1, the equation of concentration variation of pollutant is established;S2, the water flux equation of river section at the time period to be studied is established;S3, based on water flux equation and the equation of concentration variation of pollutant at the section, the pollutant flux equation of river section at the time period to be studied is established;According to the pollutant flux equation, the hourly flux of pollutant at the section at the time period to be studied is calculated.The application can calculate the hourly variation process of pollutant concentration which sufficiently reflects the concentration oscillation caused by reciprocating flow by inputting tidal level and limited concentration data into the equation of concentration variation of pollutant, and based on the hourly variation data of pollutant concentration, the pollutant flux at the section at a certain time period in the future can be calculated hourly according to the pollutant flux equation, and finally the total pollutant flux at the section per day can be counted, which provides scientific support for water safety decision-making of city managers.

The application discloses a mineral adsorbent and a preparation method thereof. The prepared mineral adsorbent is composed of illite powder, zeolite powder, fly ash, coal gangue powder, dolomite powder and calcium carbonate. The preparation method comprises the following steps: S1, crushing illite, zeolite, coal gangue and dolomite to obtain illite powder, zeolite powder, coal gangue powder and dolomite powder; S2, putting the illite powder, zeolite powder, fly ash, coal gangue powder, dolomite powder and calcium carbonate into a mixer to wet grind to obtain mixed wet materials; and S3, putting the mixed wet materials into a calciner to calcine to obtain the powder-shaped mineral adsorbent. The application has a high removal rate for pollutants in waste gas, can effectively reduce the concentration of dioxin, particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, mercury, cadmium, thallium and compounds thereof, antimony, arsenic, lead, chromium, copper, cobalt, manganese and nickel compounds in incineration waste gas.

The invention relates to the technical field of sewage treatment, in particular to a chemical dosing device and method for pollutant removal for water quality monitoring, the chemical dosing device comprises a water quality monitor, the water quality monitor comprises a sensing head and further comprises a bearing main body assembly, the water quality monitor is installed on the bearing main body assembly, and the bearing main body assembly comprises a bearing plate; a chemical adding assembly is arranged on the upper side of the bearing plate, a uniform mixing assembly and a water flowing assembly are sequentially arranged on one side of the chemical adding assembly, the uniform mixing assembly comprises an inserting and mixing assembly and an aeration assembly, the water flowing assembly is used for driving the uniform mixing assembly, and the aeration assembly is used for driving the chemical adding assembly to conduct automatic chemical adding. By arranging the bearing main body assembly, the chemical adding assembly, the inserting and mixing assembly, the aeration assembly and the water flowing assembly, the device has the functions of automatic chemical adding, automatic uniform mixing, automatic aeration, stable chemical adding, circular treatment and combined driving.

The present invention to is directed to a piezoelectric mechanochemical decontamination system. The system includes a piezoelectric material, impact medium, and dynamic impact device having a receiving chamber that receives the piezoelectric material, impact medium, and a PFAS-contaminated substance having a solid-and / or semi-solid-state PFAS. The dynamic impact device causes the impact medium to collide with the piezoelectric material to thereby cause a piezoelectric reaction that converts one-hundred percent of fluorine included in the PFAS-contaminated substance to fluoride and thereby converts the PFAS-contaminated substance to a decontaminated substance that is environmentally safe for disposal. The piezoelectric material is present at a molar ratio of at least 5:1 compared to the fluorine. The piezoelectric material includes boron nitride. The impact medium includes stainless steel or zirconium. The dynamic impact device is a planetary ball mill device, tumbler mill device, attritor mill device, or vibratory ball mill device.

The present invention to is directed to a piezoelectric mechanochemical decontamination system. The system includes a piezoelectric material, impact medium, and dynamic impact device having a receiving chamber that receives the piezoelectric material, impact medium, and a PFAS-contaminated substance having a solid-and / or semi-solid-state PFAS. The dynamic impact device causes the impact medium to collide with the piezoelectric material to thereby cause a piezoelectric reaction that converts one-hundred percent of fluorine included in the PFAS-contaminated substance to fluoride and thereby converts the PFAS-contaminated substance to a decontaminated substance that is environmentally safe for disposal. The piezoelectric material is present at a molar ratio of at least 5:1 compared to the fluorine. The piezoelectric material includes boron nitride. The impact medium includes stainless steel or zirconium. The dynamic impact device is a planetary ball mill device, tumbler mill device, attritor mill device, or vibratory ball mill device.

Provided are a water quality measurement system and a water quality measurement method, which suppress the generation of pollutants from a device structure such as a switching valve and can measure the water quality of treated water of a measurement object with high precision. The water quality measurement system (10) comprises: a first pipe (11) for circulating first treated water; a first branch pipe (11a) branching from the first pipe (11) and having a first valve (V11); a second pipe (12) for circulating second treated water; a second branch pipe (12a) branching from the second pipe (12) and having a second valve (V12); a third pipe (13) connected to the first pipe (11) and the second pipe (12) for circulating the first treated water and the second treated water; and a water quality measurement device (14) for measuring the water quality of the treated water circulating in the third pipe (13).

A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.

The invention relates to the technical field of data processing, and provides a pollution analysis method, device and equipment and a storage medium, and the method comprises the steps: obtaining the pollutant content, the pollutant type and environmental parameters of a specific environmental region; performing time sequence sorting on the pollutant content, generating a time sequence chart, performing correlation analysis on the time sequence chart and the environmental parameters to obtain a quantitative pollution degree, and analyzing the preliminary inspection result and the quantitative pollution degree to obtain a preliminary pollution analysis report; performing time sequence analysis on the preliminary pollution analysis report to obtain a corrected checking result; and analyzing the corrected checking result and the quantitative pollution degree to obtain a target pollution analysis report. Through the above scheme, the accuracy of pollution trend prediction is improved, the accurate identification of the pollution source is realized, and the problems of low data processing efficiency and insufficient prediction precision during long-time trend prediction and accurate identification of the pollution source are improved.

The present invention provides a floating pollutant recovery device and a floating pollutant recovery system that can efficiently recover floating pollutants from environmental water taken into a ship. In the present invention, a floating pollutant recovery device (40) installed on a ship (2) and recovering floating pollutants contained in environmental water taken into the ship (2) includes: a recovery filter (41) disposed in a backwash drain line (L4) through which backwash drain water flows after backwashing a filter (120) of a filter device (12) that filters environmental water; and a clean water supply mechanism (50) that supplies clean water to the recovery filter (41).

This application relates to the field of ecological environment restoration technology, and in particular to a wetland ecological restoration and environmental management device, comprising a floating mechanism, an aeration mechanism, a material throwing mechanism, and a control mechanism. The floating body carries the aeration and material throwing mechanisms and floats on the water surface. The aeration mechanism is used to introduce oxygen into the water, and the material throwing mechanism is used to release oxygen-releasing elements into the water. The oxygen-releasing elements fall into the silt layer at the bottom of the water body, and dissolve and release oxygen in the water to increase the oxygen content. The control mechanism is used to control the operation of the aeration and material throwing mechanisms. In this application, through the coordinated operation of the aeration and material throwing mechanisms, the wetland water body can maintain a high oxygen content for a longer period of time, thereby restoring and enhancing the vitality of aerobic microorganisms in the water, purifying pollutants in the water, improving the water quality of the wetland, eliminating black and odorous water, and thus achieving the purpose of wetland ecological restoration and environmental management.

The present application relates to river management technical field, especially a kind of river water quality purification collaborative management system.Its technical scheme includes body, crushing structure, aeration structure and conveying structure, crushing structure, including crushing chamber, crushing roller distributed in crushing chamber interior, shaft located at the both ends of crushing roller, motor one located at the side of body;Conveying structure, including installation pipe, motor two located at the one end of installation pipe, auger located at the output end of motor two and installed in the inside of installation pipe;Aeration structure, including intermittent gear, installation frame sleeved on the outside of intermittent gear, guide rod located at the both ends of installation frame, air cylinder located at the side of body, aeration box located in the inside of body, piston located at the one end of guide rod.The present application solves the problem that it is laborious and inefficient to clean floating foreign matter by workers through the cooperation between crushing structure and conveying structure, cooperates with aeration structure and purification container, reduces the pollution of nitrogen, phosphorus and other pollutants to water source.

The utility model relates to a sewage treatment integrated device based on an AAO principle. The sewage treatment integrated device comprises a deslagging and sand setting unit, an A-A-O biological treatment unit, a precipitation unit, a coagulation filtering unit and a disinfection water outlet unit which are sequentially communicated along the water flow direction, the deslagging and sand setting unit is used for removing scum and sand grains in the sewage and introducing the sewage into the A-A-O biological treatment unit; the A-A-O biological treatment unit is used for removing pollutants such as carbon, nitrogen and phosphorus in the sewage treated by the deslagging and sand setting unit through activated sludge; the precipitation unit is used for separating gas and cement in the mud-water mixed liquid treated by the A-A-O biological treatment unit; the coagulation and filtration unit is used for further removing suspended matters and soluble pollutants in the supernate precipitated and separated by the precipitation unit; and the disinfection water outlet unit is used for disinfecting and sterilizing the outlet water filtered by the coagulation filtering unit, and storing and discharging the outlet water. The utility model has the advantages of compact structure, improved working efficiency, saved engineering investment and land occupation, low operation cost and good treatment effect.

The invention discloses a semiconductor device processing device with a detection function, which belongs to the technical field of semiconductor device processing and comprises a machine body and an ultrasonic cleaning tank arranged at the top in the machine body. Leaking holes are uniformly formed in the positions, corresponding to the lower portions of the wafers in the flower basket, of the bottom of the ultrasonic cleaning tank, all the wafers are independently separated in cooperation with the separating mechanism on the cover plate, and high-purity water precise flushing after ultrasonic cleaning is achieved in combination with the spraying mechanism; the sample extraction mechanism and the sample conveying mechanism can extract a cleaning liquid sample on line, detection of pollutants such as metal ions is directly completed through the inductively coupled plasma mass spectrometer, pollution detection can be completed without taking out a wafer, the necessary air drying step and the wafer transfer link in a traditional process are thoroughly omitted, and the detection efficiency is improved. The whole process period from cleaning to detection is greatly shortened, the risk of secondary pollution is eliminated from the source, and the accuracy and reliability of a detection result are ensured.

This method for measuring a pollution degree comprises: a step (S11) for collecting a polluting substance on the surface of an electric facility by using a planar polluting-substance capturing part which is disposed on a surface of a resin member on one side and which contains certain amounts of a solvent and a solvent absorbent polymer per certain area; a step (S12) for sealing the polluting-substance capturing part after having collected the polluting substance; a step (S13) for unsealing the sealed polluting-substance capturing part and extracting the polluting substance from the polluting-substance capturing part; and a step (S14) for analyzing the extracted polluting substance by using a measurement device.

The invention discloses a purification treatment method for clean discharge of kitchen garbage sewage, and relates to the technical field of kitchen garbage sewage treatment, and the purification treatment method comprises the following steps: separation and concentration of kitchen garbage sewage: before sewage in kitchen garbage is treated, the sewage is separated from solid garbage in an extrusion manner, and the separation manner mainly comprises extrusion and centrifugation. In the treatment process, precipitation, filtration, oxygen deficit, flocculation and biological treatment react with various substances in sewage to generate sludge, the sewage and the sludge are separated, and then the sewage is filtered through a glass fiber filter screen, a plant fiber filter screen, an activated carbon layer, a non-woven fabric layer and a ceramsite layer, so that impurities and sludge in the sewage are removed as much as possible, and the sewage treatment efficiency is improved. According to the method, the sewage is treated more carefully, various pollutants in the sewage are removed as much as possible through multiple working procedures, deep purification of the sewage is achieved, and pollution of the sewage to the environment is reduced to the maximum extent.

The present invention relates to the field of underground environmental pollution prevention and control in landfills, and specifically to a comprehensive evaluation method for the long-term anti-fouling performance of clay-based isolation walls in landfills, comprising the following steps: S1, preparing multiple proportions of clay-based isolation wall materials; S2, designing a test based on the long-term anti-fouling performance of the clay-based isolation wall, and obtaining the physicochemical parameters of the clay-based isolation wall materials through the test; S3, setting screening conditions based on the physicochemical parameters, and using the screening conditions to evaluate and screen the multiple proportions of clay-based isolation wall materials to obtain clay-based isolation wall materials with long-term effective anti-fouling performance. The comprehensive evaluation method provided by the present invention comprehensively considers the permeability of the clay-based isolation wall, its chemical compatibility with pollutants, and the blocking time of the isolation wall for pollutants, and more comprehensively judges the long-term anti-fouling performance of the clay-based isolation wall in the landfill, ensuring that the screened materials can meet the long-term anti-fouling requirements, thereby greatly improving the accuracy and reliability of the evaluation.

Methods and co-cultures for biodegrading contaminants are described. A method can include contacting a contaminated substance with a microbial mixture under anaerobic conditions and causing degradation of contaminants by metabolism of the microbes in the microbial mixture. The co-culture can include aerobic microbes like Pseudonocardia and related genera along with anaerobic microbes of Dehalococcoides and related genera.

The invention relates to the technical field of biomedical treatment, and discloses a porous hollow microneedle capable of dynamically collecting interstitial fluid, which comprises an inner core layer, a hollow layer and a filter layer which are sequentially sleeved from inside to outside and are of conical structures, the inner core layer is made of a material with adsorption performance and is used for adsorbing and collecting interstitial fluid; the hollow-out layer is used for supporting the hardness of the microneedle and realizing a puncturing function, a plurality of hollow-out holes are formed in the hollow-out layer, a plurality of filtering holes are formed in the filtering layer, the filtering area of each filtering hole is smaller than the hollow-out area of each hollow-out hole, and the filtering layer is used for filtering interfering substances or pollutants in interstitial fluid. The micromolecular target substances in the microneedle are enabled to enter the microneedle. In practical application, the porous hollow microneedle effectively solves the problem that the body of a patient feels uncomfortable and painful due to the fact that frequent sampling is needed in traditional biological monitoring, and painless sampling is achieved.

The present invention provides a substrate processing apparatus capable of effectively removing contaminant substances from an edge region of a substrate. The substrate processing apparatus includes a support stage that rotates a substrate; a first tank disposed around the support stage, storing a cleaning liquid and having a first opening portion formed on an upper surface; and a first ultrasonic oscillator disposed in the first tank and providing ultrasonic waves toward a surface of the cleaning liquid exposed by the first opening portion to form a first water film protruding from the surface of the cleaning liquid, the substrate not being immersed in the first tank, the edge region of the substrate being cleaned by the protruding first water film during rotation of the substrate by the support stage.

The invention relates to a method for separating and recycling rare earth and a leaching agent in rare earth-containing bioleaching liquid, which is characterized by comprising the following steps: 1) obtaining the bioleaching liquid rich in rare earth; 2) removing impurities; 3) activating a coordination chemical bond; 4) activating the transformation material; (5) fracture and reconstruction of coordinate bonds; and 6) cyclic utilization. Based on the principles of activation, fracture, reconstruction and the like of a bioleaching agent-rare earth coordination chemical bond, rare earth elements in the bioleaching agent can be efficiently separated and recovered (the rare earth recovery rate is close to 100%) in a transformation separation mode; in the rare earth separation and recovery link, a bioleaching agent-rare earth coordination chemical bond is broken, transformation of a rare earth bioleaching agent and selective separation of rare earth elements are achieved, the bioleaching agent is reserved in a solution and can be used for subsequent leaching of rare earth raw materials, and recycling of the bioleaching agent is achieved (the regeneration rate is close to 100%); chemical reagents do not need to be added, so that introduction of environmental pollution substances is avoided; the method is simple in equipment and operation, good in effect, low in cost, environment-friendly and convenient for large-scale industrial application.

This invention relates to the field of electronic technology and discloses a method, apparatus, and equipment for quantitatively evaluating the degree of groundwater intrusion in a single section of sewage pipeline. The method uses a first water quality concentration, a third water quality concentration, and a second water quality concentration to solve a pre-constructed first mass balance equation, obtaining a first ratio between the groundwater intrusion amount of the pipeline section to be evaluated and the pipeline inlet flow rate. It then uses a first water quality concentration, a fourth water quality concentration, and a fifth water quality concentration to solve a pre-constructed second mass balance equation, obtaining a second ratio between the groundwater intrusion amount in the upstream sewage area of ​​the pipeline section to be evaluated and the sewage volume in that area. Based on the first ratio, the second ratio, and a preset ratio, the groundwater infiltration rate is calculated. Based on the groundwater infiltration rate, the degree of groundwater intrusion in the pipeline section to be evaluated is quantitatively evaluated, yielding an evaluation result. Based on the principle of pollutant mass balance, this method enables the analysis of groundwater intrusion in high-full-water-level sewage pipelines under conditions without flow monitoring.

The invention discloses a UPLC (Ultra Performance Liquid Chromatography)-Q-Orbitrap (Quantitative Orbitrap) screening method for multi-structure type new pollutants in sediments or soil. The method comprises the following steps: firstly, determining UPLC-Q-Orbitrap-HRMS instrument analysis conditions aiming at the multi-structure type new pollutants, optimizing a pretreatment method of a sample, then constructing a mass spectrum database of the multi-structure type new pollutants, carrying out analysis and data acquisition on an actual sediment or soil sample on the basis of the determined UPLC-Q-Orbitrap-HRMS instrument analysis conditions and the pretreatment method, and finally determining a mass spectrum of the multi-structure type new pollutants. And determining the matched multi-structure type new pollutants by using the determined screening standard. Based on the UPLC-Q-Orbitrap-HRMS technology, a broad-spectrum analysis method for qualitative screening before quantification is established, and the method is based on the high-resolution mass spectrum, adopts a unified instrument analysis and extraction process, and can be used for rapidly identifying various types of new pollutants with different structures in environmental sediments and soil at the same time.

This invention discloses an ecological ditch system for improving the treatment of non-point source pollution in receiving water bodies. The system includes a housing with an inlet and a filter box located below the inlet. A main shaft is rotatably connected inside the housing, and a support base is fixedly connected to the main shaft. The support base has several grooves, within which splined sleeves are movably mounted. A splined shaft is slidably connected within the splined sleeves, and the splined shaft is fixedly connected to the filter box and rotatably connected to the support base. This device removes some pollutants through multi-stage filtration and the metabolic activity of plant roots, achieving high purification efficiency and effectively managing non-point source pollution in water bodies.