850 results about "Microplastics" patented technology

The invention discloses a microplastic transport simulation and risk identification method based on multi-factor coupling, which comprises the following steps: by coupling a hydrodynamic model and a microplastic transport model, comprehensively considering multiple environmental factors such as tide, water level, runoff, wind speed, wind direction and the like, constructing a wave flow coupling microplastic migration and diffusion model suitable for complex hydrodynamic conditions of a Pearl River estuary; the model is calibrated and verified through measured data, and the precision of the model is evaluated by using indexes such as a Nash efficiency coefficient and a root-mean-square error; in combination with the simulation result and the spatial distribution characteristics of the typical sensitive area, representative sections and stations are selected, and annual-scale micro-plastic concentration change analysis is carried out; and further introducing an ecological risk index to carry out regional ecological risk grade identification, and determining a micro-plastic high-risk area and influence main control factors. The method has high regional adaptability and expansibility, and scientific support and technical reference can be provided for prevention and control of microplastic pollution of estuary and coastal water.

The invention relates to the technical field of regeneration of waste polyester, in particular to a polyester micro-plastic recycling and impurity removing method and equipment. According to the method, the irradiation technology is adopted for treating the polyester micro-plastic, the polyvinyl chloride is removed by combining electron beam irradiation with the specific gravity method, the radiation dosage and time are accurately controlled, the polyvinyl chloride in the polyester micro-plastic can be effectively removed, the color of the polyester micro-plastic is not affected, and the treated polyester micro-plastic can meet the spinning requirement. The equipment is used for realizing the impurity removal method and comprises irradiation treatment equipment, a separation tank, a cleaning tank, a dehydrator and a drying tower. The equipment is simple in structure and convenient to operate, the radiation dosage and time can be accurately controlled in the impurity removal process, the surface temperature of the polyester micro-plastic is effectively controlled, and production and popularization are easy.

A system for detecting plastics, macro-plastics, micro-plastics and nano-plastics in a maritime, estuary or river environment includes multiple detection devices and a data processing device. The detection devices detect the plastics, macro-plastics, micro-plastics, and nano-plastics using different detection wavelengths. The data processing device includes a communication interface and a processor. The communication interface receives detection signals from the detection devices and the processor determines locations of the plastics, the macro-plastics, the micro-plastics and the nano-plastics in the environment based at least in part on the received detection signals within a common coordinate system.

The invention discloses a biodegradable plastic and a preparation method thereof, belongs to the field of bioplastic preparation, and aims to solve the problem that the existing plastic is slow in degradation rate in a marine environment. The biodegradable plastic is prepared from the following components in percentage by weight: 50-80% of a biomass-based high polymer material; 10 to 35% of a degradable toughening agent; 1-5% of a photosensitizer; 2-10% of a microbial inducer; 1-5% of a processing aid; after the biomass degradable plastic is subjected to ultraviolet radiation for 7-15 days in a marine environment, initial cracks with the density being larger than or equal to 20 pieces / cm < 2 > appear on the surface, the initial cracks are broken into degradation units with the particle size being 5-20 mm after being subjected to mechanical impact of sea waves for 30-60 days, and the biological decomposition rate of the degradation units is larger than or equal to 90% within 6-12 months under the action of marine microorganisms; and no micro-plastic particles with the particle size of less than or equal to 1mm exist in the residual product. Through the synergistic effect of the photosensitizer and the microbial inducer, the degradation period in the marine environment is shortened, the degradation efficiency is improved, and the method is remarkably superior to the prior art.

The invention provides a method for detecting influence of microplastics and antibiotics on a sediment microbial community structure and an ecological function. The method comprises the following steps: acquiring a sediment sample at a sampling point; adding the micro-plastic particles and the antibiotic solution into the sediment sample, and incubating; dNA of the microorganisms is extracted, and 16S rRNA sequencing is carried out; and on the basis of a sequencing result, microbial community diversity and characteristic bacterial class group identification and ecological function evaluation are carried out. According to the invention, the comprehensive effect of micro-plastic and antibiotic combined pollution on the structure and ecological function of the microbial community in the sediment is comprehensively analyzed for the first time, and the detection speed and accuracy of the microbial community in the sediment are improved by applying a 16S rRNA detection technology; and a solid support is provided for formulating an environment protection strategy, optimizing pollution control and implementing an ecological restoration project.

The invention provides a method for simultaneously detecting various micro-plastics in water, and belongs to the technical field of micro-plastic detection. The method comprises the steps of sample pretreatment, thermal cracking-gas chromatography-mass spectrometer measurement, qualitative analysis and quantitative analysis. The method comprises the following steps: taking a water sample, uniformly shaking, filtering with a filter membrane, taking the filtered filter membrane, adding acetone, carrying out ultrasonic elution, washing the filter membrane, and collecting an eluent; adding acetone into the eluted filter membrane, carrying out ultrasonic elution again, washing the filter membrane, collecting the eluent, combining the two eluents, heating and concentrating in a water bath, adding acetone, ultrasonically mixing, transferring into a cracking cup, heating and volatilizing, and determining by a thermal cracking-gas chromatography-mass spectrometer. Carrying out qualitative analysis through analysis of cracking products with different types of micro-plastic characteristics, and then carrying out quantification through an external standard method; the method provided by the invention can accurately quantify the six microplastics in the effluent, and has the advantages of simple pretreatment, small sampling amount, high accuracy and lowest detection limit of 0.012 [mu] g / L.

The invention discloses a microplastic transportation path prediction method, device and equipment based on a complex hydrodynamic environment and a medium, and relates to the technical field of environment monitoring and water pollution governance, and the method comprises the steps: integrating a watershed digital elevation model, a river channel vector diagram, microplastic attributes and real-time hydrological data; a dynamic adjacency matrix is used for capturing water flow direction changes, multi-modal feature fusion is combined for modeling micro-plastic physical attributes and topographic resistance, the problem of monitoring data scarcity is solved through a cross-basin transfer learning strategy, a micro-plastic transfer path is accurately predicted, high-precision simulation of micro-plastic transfer in a complex hydrodynamic environment is achieved, and high-precision simulation of micro-plastic transfer in a complex hydrodynamic environment is achieved. The pollution prevention and control efficiency is improved.

The invention relates to the field of soil substance detection, and discloses a soil plastic detection method and system based on multi-modal fusion and deep learning, and the method comprises the following steps: obtaining one-dimensional hyperspectral data of a to-be-detected soil sample; converting the one-dimensional hyperspectral data based on an image conversion algorithm to obtain two-dimensional image representation; performing feature extraction on the one-dimensional hyperspectral data based on a first preset algorithm to obtain spectral features; performing feature extraction on the two-dimensional image representation based on a second preset algorithm to obtain image features; performing multi-view probability fusion on the spectral features and the image features to obtain fusion features; and inputting the fusion features into a pre-trained double-path attention residual convolutional network model for classification to obtain a detection result of the micro-plastics in the to-be-detected soil sample. According to the method, the detection accuracy is improved, the model robustness is enhanced, and low-concentration detection is realized.

The invention discloses a micro-plastic integrated intelligent detection device, which comprises: a sample pretreatment module, which comprises a sample mixing module, a filtering separation module, an enrichment concentration module and a surface modification and marking module which are communicated in sequence and is used for mixing, filtering, enriching, modifying and marking a sample in sequence; the immunoreaction module is used for performing immunoreaction on the sample and the anti-polystyrene monoclonal antibody freeze-dried product marked by the quantum dot fluorescent microspheres; the fluorescence detection module is used for carrying out fluorescence detection on the test strip subjected to the immune reaction; the automatic control module is electrically connected with the sample pretreatment module, the immunoreaction module and the fluorescence detection module and is used for controlling the operation of each module. According to the invention, the sample processing module, the reaction module, the detection module and the control module are in close cooperation, the sample enters each module in sequence after simple pretreatment, detection and result output are semi-automatically completed, frequent manual operation of different instruments is not needed, the operation steps and time are reduced, and the operation difficulty is reduced.

The invention provides a composite pollution repairing agent as well as a preparation method and application thereof, and belongs to the technical field of environmental functional materials. The composite pollution repairing agent comprises biochar, nano zero-valent iron (nZVI) loaded on the biochar, cyclodextrin and heteroatoms, and at least part of the nZVI is wrapped in the cyclodextrin. According to the prepared composite pollution repairing agent, solid waste resource utilization can be effectively achieved, the removal rate of micro-plastics reaches 90% or above, and the removal rate of heavy metal is 100%. The composite pollution repairing agent has excellent performance and good application prospect, provides a feasible solution for micro-plastic and heavy metal composite pollution treatment, and shows remarkable practical application value.

The invention relates to a method for separating micro-plastics from sediment rich in organic matters in mangrove forest, which comprises the following steps: sediment pretreatment: freeze-drying a sample, sieving, and oscillating and dispersing by using an alkaline buffer solution with the pH value of 9.0-10.0; performing density gradient centrifugation: sequentially performing step-by-step centrifugation by using a NaI solution with the concentration of 1.1-1.3 g / cm < 3 > and a ZnCl2 solution with the concentration of 1.5-1.7 g / cm < 3 >; enzymatic hydrolysis purification: digesting a centrifugal product with a compound enzyme solution at 35-40 DEG C for 4-8 hours; and vacuum filtration: collecting the micro-plastics by using a filter membrane with the aperture of 0.2-0.8 mu m. According to the method for separating the micro-plastics from the sediments rich in the organic matters in the mangrove forest, the density range of all common plastics is accurately covered by dual-density gradient centrifugation, the average recovery rate of 0.1-5mm micro-plastics in the sediments in the mangrove forest reaches 90.2 + / -3.5%, the degradation efficiency of typical organic matters in the mangrove forest by adopting organic matter interference elimination and cellulase and protease combination reaches 92.4%, and the degradation rate of the typical organic matters in the mangrove forest reaches 92.4%. Therefore, the separation efficiency is effectively improved, the contact ratio of particle size distribution curves of 1 mu m-5 mm before and after treatment reaches 98.2%, and the integrity of the micro-plastic can be effectively guaranteed.

The present invention relates to a process for the quantification and analysis of microplastics contained in aqueous matrices, comprising the magnetic separation of microplastics by the interaction of said microplastics with magnetic iron material particles, forming microplastic / magnetic iron material aggregates, the selective oxidation of the particles of a non-plastic organic nature, and the quantification and / of the separated microplastics.

The invention discloses a river micro-plastic spatial distribution simulation method and system. Comprising the following steps: firstly, determining a small watershed range covered by each tributary according to geographic space data of a monitoring area, and performing grid division on the small watershed range of each tributary to obtain a corresponding grid division layer; then, assigning each grid in the grid division layer according to the human activity data of the monitoring area, and determining the human activity data of each grid; and then, respectively carrying out statistical analysis on the human activity data of all grids in the small watershed range of each branch, determining an average value of the human activity data of the grids in the small watershed range of each branch, and calculating a micro-plastic abundance simulation value of each branch through a micro-plastic distribution simulation model according to the average value of the human activity data of the grids in the small watershed range of each branch. And finally, according to the micro-plastic abundance simulation values of all branches in the monitoring area, determining a micro-plastic spatial distribution result of the monitoring area by adopting a spatial interpolation algorithm. And large-range and low-cost rapid monitoring of micro-plastic distribution is realized.

The invention provides a method for detecting micron and nano plastics in soil or sediments and related application. The detection method comprises the following steps: providing a soil or sediment sample to be detected; the method comprises the following steps: pretreating a to-be-detected soil or sediment sample to obtain a to-be-detected solution; performing multi-stage filtration treatment on the solution to be detected to obtain micro-plastic particles in a plurality of particle size intervals; wherein the plurality of particle size intervals comprise a first particle size interval, a second particle size interval and a third particle size interval; the particle size of the first particle size interval is 1-5000 [mu] m; the particle size of the second particle size interval is 220-1000 nm; the particle size of the third particle size interval is 10-220nm; and performing quantitative analysis on the micro-plastic particles in the plurality of particle size intervals through pyrolysis-gas chromatography / mass spectrometry to obtain the mass concentration of the micro-plastic particles in the plurality of particle size intervals. The problem that the risk assessment of micron and nano plastics is not accurate enough at present can be solved to a certain extent.

The present invention relates to a process which allows the removal of microplastics present in aqueous streams by means of the immediate formation of microplastic / magnetic iron material aggregates by means of a Venturi device and the subsequent separation of the formed aggregates by applying a magnetic filter.

The invention provides a water body micro-plastic identification method and system based on a hyperspectral sensor, and relates to the technical field of micro-plastic identification. Hyperspectral data of a water body to be analyzed are obtained based on the hyperspectral sensor and preprocessed, and a local water body component end member library is obtained; matching pixels in the effective wave band spectral data with end members in a water body component end member library, and forming a two-dimensional end member matrix by the successfully matched pixels; forming a two-dimensional hyperspectral matrix by using the effective wave band spectral data; constructing a reconstruction cost function based on the abundance matrix and the two-dimensional end member matrix, and performing optimization solution on the reconstruction cost function to determine an optimal abundance matrix; k-means clustering is carried out based on the row vector of the abundance matrix; and completing the recognition of the water body micro-plastics based on the pixels of the clustering center and the abundance matrix.

The invention relates to the technical field of micro-plastic identification, in particular to a drainage basin water body micro-plastic identification method and system, which comprises a data acquisition and preprocessing module, a principal component analysis dimension reduction module, a K-means clustering optimization module, a micro-plastic classification and identification module and a result visualization module, the dimension reduction module is used for performing dimension reduction on a high-dimensional spectral data matrix and retaining key spectral features; the K-means clustering optimization module is used for carrying out clustering optimization based on the data after dimension reduction; according to the method, dimension reduction and noise and redundant information removal are carried out by means of principal component analysis to reduce calculation complexity, then efficient clustering optimization is carried out based on data after dimension reduction to reveal an internal structure of micro-plastic spectrum data, finally, classification and identification are carried out on various micro-plastics based on a clustering result, and the structure is visually displayed. The observation convenience of workers is greatly improved, and the micro-plastic identification efficiency and accuracy are also remarkably improved.

Methods, apparatus, and systems are provided for detecting and removing microplastics from wastewater effluent. Both, automatic / remote and manual monitoring and sampling components are included to detect the presence of microplastics. The automatic monitoring and sampling component includes a TSS sensor and associated apparatus calibrated to account for non-plastic solids present in the wastewater and, thereby, more accurately determine the presence of microplastics. Efficient separation and removal of microplastics from wastewater effluent is performed by a specialized capture net apparatus having multiple sized mesh components and optional diffuser devices which perform size exclusion filtration of microplastics from the water. In an exemplary embodiment, the methods generally include diverting treated wastewater effluent from a wastewater treatment facility's main line into a wastewater sampling mechanism via an intake pipe, and then into a solids monitoring and separation mechanism which includes the specialized capture net apparatus.

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm / sec or greater than 100 cm / sec.

The invention discloses a method for efficiently degrading sludge containing a large amount of microplastics through sodium hydroxide hydrothermal pretreatment. The method comprises the following steps: injecting sodium hydroxide and activated sludge containing micro-plastics into a reaction kettle together, continuing for 30 minutes under the condition of 170 DEG C, taking out the reaction kettle after the reaction is finished, and naturally cooling. The obtained sludge is fed into a sludge anaerobic reactor in a daily feeding form, all the reactors operate in a water bath at 37 DEG C under the stirring condition of 120 rpm, and various pollutant indexes, methane production amount changes and the like in an anaerobic system are monitored every day. The method can effectively improve the degradation efficiency of the sludge containing a large amount of micro-plastics, improve the stability and resource utilization efficiency of the sludge, obviously reduce the content of the micro-plastics in a sludge system and reduce environmental pollution.

Systems and methods involving filtration are disclosed. A filtration device includes a first opening, a second opening, and a vortical filter, the vortical filter comprising a rib. The rib may be configured to generate vortices to keep the filtered particles in suspension and to provide a flow path extending from the first opening to the second opening. The filtration device may filter particle from the fluid by cross-flow filtration along the flow path across a filter media surrounding at least a portion of the circumference of the vortical filter. The filtration device may be effective at filters greater than 90% of microplastics by mass when post-filtered to 10 microns when measured using the method of either of Example 1 or Example 2. The filtration device may be effective at filtering particles from the fluid at high flow speeds, such as flow speeds greater than 50 cm / sec or greater than 100 cm / sec.

The invention relates to the technical field of soil treatment, and particularly discloses a soil micro-plastic electrostatic separation device and method.The soil micro-plastic electrostatic separation device comprises a sample pool, an electrostatic adsorption mechanism is arranged on one side of the sample pool, and the electrostatic adsorption mechanism is connected with an electrostatic discharge generator through a wire; the electrostatic adsorption mechanism comprises an adsorption plate and a connecting handle; the bottom box and the heightening frame bodies are made of wood, the height of the sample pool can be adjusted by installing the heightening frame bodies in an assembling mode, a nylon coating is arranged on the outer side of an adsorption plate and used for adsorbing micro-plastics and eradicating the risk of high-voltage electric leakage, and the height of the adsorption plate can be adjusted through an arranged supporting assembly; the particle size range of the micro-plastic covered by electrostatic adsorption is wide, compared with a traditional method, the recovery rate is remarkably improved, and the original form of the micro-plastic and the natural structure of soil are protected through normal-temperature physical separation and no reagent addition.

The invention discloses a composite fiber woven net active microbial carrier for treating nitrogen-containing wastewater as well as a preparation method and application of the composite fiber woven net active microbial carrier. The active microbial carrier is formed by weaving titanium wires, rock wool wires, iron-carbon twisted wires and PLA wires, has high biocompatibility and high specific surface area, keeps high mechanical strength, can promote efficient biofilm formation of denitrification sludge, and can promote quick start of a reactor and improve the denitrification effect after successful biofilm formation. According to the application, the requirements of'plastic reduction and plastic forbidding 'are met, the traditional plastic biological filler is replaced, the technical problem that micro-plastic particles are released due to degradation in the use process of the filler is solved, the requirement of green development is met, and remarkable economic and ecological environment values are achieved. Iron wires and carbon fibers in the iron-carbon stranded wires form a primary battery in the reactor, controllable dissolution of iron ions is spontaneously accelerated, driving is not dependent on external potential, and the concept of low carbon and environmental protection is met; additional carbon source adding is reduced through the PLA filaments, and the PLA filaments are further matched with the low-carbon and environment-friendly concept.

The invention discloses a paper base-PHA double-sided composite soil biodegradable agricultural mulching film as well as a preparation method and application thereof, and belongs to the technical field of agricultural mulching materials and green high polymer materials. The mulching film comprises a paper base layer and a homologous polyhydroxyalkanoate covering layer arranged on the surface of the paper base layer. Through double-sided synergy of the water-based PHA coating on the soil sticking surface and the thermoplastic PHA extrusion film layer on the windward and rainy surface, and in combination with a'wet-to-heat 'integrated composite process and trace anhydride grafting, super-strong combination of a paper-plastic interface fiber tearing level is realized, and the problem that traditional paper-plastic is easy to layer is solved. Compared with a traditional fluorine-containing product, on the premise that total organic fluorine is not detected, the excellent barrier and moisture conservation performance is achieved with the thinner coating thickness by means of double barriers. The product has excellent mechanical laying adaptability and long-season weather resistance, is fully biodegradable, thoroughly solves the hidden dangers of micro-plastic residues and persistent organic pollutants, and is an ideal green agricultural covering material.

The invention provides a sampling device for collecting micro-plastics in a water body, and relates to the technical field of micro-plastic collection, the sampling device comprises a detection case, an inner case body is arranged in the detection case, a space is reserved between the inner wall of the detection case and the outer wall of the inner case body, and an internal pressure balance mechanism is arranged. And the pressure intensities inside and outside the detection case body are close. According to the sampling device for collecting the micro-plastics in the water body, equipment can sample a large number of samples in water at a time and sample in different depths and different environments, meanwhile, a filter box, a blade and the like can be automatically cleaned in the sampling completion process, the sampling quality is accurate, the sampling efficiency is improved, and the input of manpower and material resources is saved.

The invention relates to the technical field of organic solid waste resourceful treatment, in particular to a method for enhancing degradation of biodegradable plastic compost based on white-rot fungi and manganese modified charcoal. According to the method, manganese modified charcoal and white-rot fungi are subjected to synergistic treatment, and the efficient method for intensively degrading the biodegradable plastic through aerobic composting is constructed. The method effectively overcomes the technical bottlenecks of slow degradation starting, long degradation period and easy generation of micro-plastic residues of the biodegradable plastic in traditional compost, and realizes rapid and thorough degradation of the biodegradable plastic. Besides, the method also promotes the conversion of humus precursor substances in the compost material and accelerates and stabilizes the synthesis of humus, so that the decomposition degree of the compost product is remarkably improved, and the quality and environmental safety of the final compost product are synchronously improved while the biodegradable plastic is efficiently degraded. And an efficient and reliable solution is provided for recycling of organic solid wastes and degradation of biodegradable plastic compost.

The invention provides functional super-hydrophobic quartz sand with an MOF structure as well as a preparation method and application of the functional super-hydrophobic quartz sand. The functional quartz sand is formed by assembling hexadecyl trimethoxy silane, ZIF-8 and polydopamine layer by layer. The preparation method comprises the steps of pretreatment of quartz sand, preparation of PDA (at) QS, preparation of ZIF-8 (at) PDA (at) QS and preparation of HDTMS (at) ZIF-8 (at) PDA (at) QS. When the prepared functional super-hydrophobic quartz sand with the MOF structure is used for removing microplastics in rainwater runoff, the removal rate of the HDTMS (at) ZIF-8 (at) PDA (at) QS on PP microplastics reaches 98.3%, and the adsorption capacity reaches 66.7 mg / g. The removal rates of PE and PET respectively reach 97.1% and 85.5%, and the adsorbent shows wide adsorption adaptability. The functional super-hydrophobic quartz sand with the MOF structure prepared by the invention is feasible to be used as an adsorbent or applied to a bioretention facility as a filler to remove micro-plastics in rainwater runoff.

The invention provides a soil micro-plastic mobility evaluation system and method, and relates to the technical field of micro-plastic mobility evaluation, and the method comprises the steps: uniformly dividing target monitoring soil into a plurality of three-dimensional grid units, taking the center of each unit as a monitoring point position, collecting endogenous parameters and exogenous parameters, generating a comprehensive soil micro-plastic data set, and calculating the micro-plastic mobility of the soil according to the comprehensive soil micro-plastic data set; performing exception identification on the data set, identifying exceptional migration data points, setting a neighborhood search radius, and filling and correcting exceptional data by using a spatial distance attenuation rule to obtain normal micro-plastic migration data; determining a migration potential index of each monitoring site, constructing an ecological mirror image simulation model by adopting a quantum inspiration algorithm, predicting a dynamic path of the microplastics in the soil, obtaining a migration trajectory prediction result, displaying the migration trajectory prediction result by utilizing a visualization technology, and highlighting a high-risk area in a thermodynamic analysis chart. According to the method, the understanding of decision makers on micro-plastic migration is enhanced, and powerful support is provided for environment management.

The invention discloses a machine vision-based micro-plastic intelligent identification and measurement method, which comprises the following steps: filtering a water sample containing micro-plastic or not containing micro-plastic, and acquiring images under a uniform amplification factor by using a microscope to obtain a micro-plastic image to be detected and a contrast image; calculating the absolute value of the color centroid value of the contrast image and the color difference value of the micro-plastic image, generating a difference image, and carrying out denoising, graying and binarization processing on the difference image to obtain a binary image with highlighted micro-plastic; extracting pixel coordinates of the micro-plastics, setting a threshold value to carry out connected clustering, and distinguishing the micro-plastics and image impurities in combination with a preset micro-plastic recognition threshold value to realize micro-plastic recognition and quantity statistics; and further shooting a standard objective lens micrometer image, calculating the actual physical size represented by a single pixel, and automatically calculating the area and the length of the micro-plastic by combining each clustering enclosing rectangle and the number of the pixels. The method is accurate in recognition and high in operation automation degree, and can be widely applied to intelligent recognition and analysis of water body micro-plastics.

The invention relates to the technical field of monitoring analysis, and discloses a microplastic degradation process monitoring system based on microbiological treatment, which comprises the following modules: a microbiological culture module for culturing microorganisms in a microplastic degradation process and adjusting a plurality of parameters through an environmental reactor to maintain the activity of the microorganisms; the data monitoring and processing module is used for monitoring and acquiring a plurality of key indexes of the micro-plastics in the degradation liquid in the degradation process through a plurality of sensors, removing and supplementing abnormal data, and finally synchronously uploading non-abnormal data to the cloud through the Internet of Things node; and the intelligent analysis platform comprises a degradation prediction unit and a reporting unit. Through one-way comparison and relevance comparison, abnormal data monitored by the sensor are removed, the microplastic degradation efficiency is predicted by using the living environment of microorganisms, the concentration of the microorganisms and a degradation kinetic model, and the microplastic degradation efficiency can be comprehensively analyzed in combination with multiple parameters during microplastic degradation analysis.