226results about How to "Efficient repair" patented technology

The invention discloses a bad traffic monitoring method and system based on an LSTM and a clustering algorithm, belongs to the technical field of network security, and efficiently converges network traffic by using a BPF technology. The method comprises the following steps: accurately identifying fragmented traffic through an LSTM network, and capturing a complex dependency relationship by using a special memory unit structure of the LSTM network; performing session recombination by adopting an FCM clustering algorithm, restoring a complete network session, and quickly identifying malicious traffic through feature matching; and finally, timely treatment measures are taken for the confirmed malicious traffic. According to the method, rapid and accurate detection and identification of bad website traffic fragmentation behaviors are realized, and the technical problem that a traditional method is difficult to deal with is solved; through efficient caching and recombination mechanisms, the efficiency and accuracy of malicious traffic processing are improved; intelligent disposal measures are adopted, and it is ensured that malicious traffic is effectively restrained in time; the overall protection capability of network security is improved, and enterprise network resources and user data security are protected.

The invention discloses a waste lithium iron phosphate positive electrode material recycling method and a lithium iron phosphate material, and the method comprises the following steps: calcining a waste lithium iron phosphate positive electrode material to obtain a lithium iron phosphate / carbon powder material; the element content of the lithium iron phosphate / carbon powder is obtained, and the amount of lithium, iron and phosphorus needing to be supplemented is determined; lithium, iron and phosphorus are supplemented to the lithium iron phosphate / carbon powder, then a reducing agent is added and mixed, a mixture is obtained, and the reducing agent comprises at least one of a non-amino acid reducing agent and an amino acid reducing agent; and calcining the mixture to obtain the recycled and regenerated lithium iron phosphate material. According to the method, elements missing in the waste lithium iron phosphate material are analyzed and supplemented, and the type of the reducing agent is adjusted, so that efficient repair of the waste lithium iron phosphate material is realized. The repairing efficiency of the waste lithium iron phosphate material is high, and the battery assembled by the repaired lithium iron phosphate material has excellent rate capability and cycle performance.

The invention discloses a tool wear monitoring and repairing method based on artificial intelligence. The method comprises the following steps that a terminal layer collects original machining data and uploads the original machining data to a cloud computing layer; the cloud computing layer trains a power increment diagnosis model; the terminal layer collects processing data in the processing process in real time as monitoring data; the cloud computing layer selects a deep learning algorithm or a transfer learning algorithm to train a final processing precision fault diagnosis model; constructing an edge calculation distribution optimization algorithm and performing task scheduling; and based on the machining precision fault diagnosis result, a laser surface strengthening path is constructed, and the abraded tool is repaired through laser surface strengthening treatment. The numerical control machining process can be diagnosed in real time based on the transfer learning mechanism, the laser surface strengthening path is planned based on the diagnosis result, the laser surface strengthening operation is guided in real time, the abnormal state of the tool is repaired in time through the laser surface strengthening technology, and the machining precision is ensured.

The invention, which relates to the technical field of image processing, discloses a method for converting a 2D image into a 3D image, comprising the following steps: step 1, obtaining a 2D image; step 2, monocular depth estimation is carried out on the 2D image to obtain a relative depth map; 3, determining the longitudinal depth and the zero parallax surface of the scene according to the content of the 2D image; 4, carrying out value domain transformation on the depth map; 5, calculating the parallax of each pixel of the 2D image according to the transformed depth map, and then rendering an image of a virtual viewpoint according to the parallax; and step 6, repairing the cavity. According to the method for converting the 2D image into the 3D image, the watching experience is improved, the stereoscopic impression is enhanced, the ghosting phenomenon is reduced, and the proper proportion scale is kept; the conversion efficiency and the automation degree are improved, and manual intervention is reduced; meanwhile, the generalization ability is enhanced; in addition, the hole repairing effect is optimized, so that the converted 3D image is more natural and perfect.

The invention discloses a preparation method of a fly ash-Al-MOF material loaded with sodium percarbonate and acid-containing ferrous sulfate, which comprises the following steps: carrying out heat treatment on fly ash, cooling, adding into a sulfuric acid solution, stirring and mixing, carrying out solid-liquid separation, adding sodium hydroxide into a liquid product to adjust the pH value to 4.5-6 to obtain an aluminum hydroxide precipitate, washing and roasting to obtain aluminum oxide, and drying to obtain the fly ash-Al-MOF material loaded with sodium percarbonate and acid-containing ferrous sulfate. The preparation method comprises the following steps: mixing fly ash-Al-MOF with a sulfuric acid solution to obtain an aluminum sulfate solution, uniformly mixing the aluminum sulfate solution with a phthalic acid solution, carrying out solid-liquid separation, washing a solid product, carrying out freeze drying to obtain fly ash-Al-MOF, and respectively loading sodium percarbonate and acid-containing ferrous sulfate on the fly ash-Al-MOF to obtain fly ash-Al-MOF loaded with sodium percarbonate and fly ash-Al-MOF loaded with acid-containing ferrous sulfate; and uniformly mixing the two components to obtain a finished product. Compared with the existing method, the material prepared by the invention can realize long-term, stable, effective and environment-friendly remediation of the organic polluted soil, and the remediation efficiency is high.

The invention relates to the technical field of geographic information, and discloses a three-dimensional geographic information collection system and method, and the system comprises a data collection module which is used for collecting three-dimensional geographic image data; the data processing module is used for processing the three-dimensional geographic image data and repairing and reconstructing damaged image data, the data processing module comprises a generative adversarial network (GAN), the generative adversarial network comprises a generator and a discriminator, and the generator carries out image reconstruction based on an image damaged area; the data storage module is used for storing the repaired image data; and the output module is used for outputting the reconstructed image data. High-precision restoration of image data is achieved through the generative adversarial network, the precision and detail integrity of three-dimensional geographic information collection are improved, the system has the automatic processing capacity and is suitable for various geographic scenes, and the collection efficiency and the data quality are improved.

The invention belongs to the technical field of environmental rock soil, and particularly relates to a preparation method of zeolite-magnetic iron oxide and application of the zeolite-magnetic iron oxide in catalyzing sodium percarbonate to repair petroleum hydrocarbon polluted soil. The specific method comprises the following steps: carrying out alkali treatment on zeolite, and then carrying out heat treatment to obtain alkali-heat combined modified zeolite; extracting an iron element in the iron-containing by-product with acid and preparing ferric hydroxide colloid; and uniformly mixing the alkali-heat combined modified zeolite with the ferric hydroxide colloid, carrying out solid-liquid separation, and then carrying out heat treatment and hydrogen reduction treatment to obtain the zeolite-magnetic iron oxide, the application specifically comprises the following steps: uniformly mixing sodium percarbonate, tween-80, silica sol and water to prepare a turbid solution A; uniformly mixing zeolite-magnetic iron oxide, organic acid, silica sol and water to prepare a turbid solution B; and uniformly mixing the turbid liquid B with the petroleum hydrocarbon polluted soil, then adding the turbid liquid A, uniformly mixing, and maintaining for 12-15 days to finish the remediation.

The invention discloses a magnetic control silicon-based adhesive as well as a preparation method and application thereof. The magnetic control silicon-based adhesive is prepared from the following components in parts by weight: 60 to 70 parts of silane modified polyurethane, 15 to 25 parts of a silane coupling agent, 40 to 60 parts of a magnetic nano material, 15 to 45 parts of microcrystalline silicon, 25 to 40 parts of nano calcium carbonate, 5 to 15 parts of titanium dioxide, 5 to 10 parts of talcum powder, 10 to 15 parts of amino silane, 3 to 8 parts of color paste and 1 to 4 parts of a catalyst. The silane modified polyurethane, the magnetic nano material and the microcrystalline silicon are reasonably compounded, so that the obtained adhesive not only has good adhesive force, but also has excellent water resistance and aging resistance, the introduction of the magnetic nano material not only can be matched with electromagnetic equipment to realize remote repair, but also can improve the curing capacity of the adhesive, so that the adhesive has a good application prospect. And the microcrystalline silicon enables the chemical properties of the adhesive to be more stable, and can meet the building repair requirements in various complex environments.

The invention discloses an indoor visual positioning method and positioning system based on an occlusion clearing algorithm, and belongs to the technical field of occlusion image processing, image restoration and indoor positioning. The method is characterized by comprising the following steps: step 1, querying an image in a database, extracting feature information of the image in the database, and storing the feature information; step 2, shielding object detection is carried out, and shielding objects in all query images are removed; 3, performing image restoration by adopting the image restoration model, and restoring a query image; and step 4, indoor positioning is carried out. According to the indoor vision positioning method and positioning system based on the occlusion clearing algorithm, target detection, image restoration and feature matching technologies are combined, and the positioning accuracy and robustness are improved. According to the method and the device, the blocking objects in all the query images are detected and removed, so that the pixels of the blocking objects do not interfere with subsequent processing, and meanwhile, a clear target area is provided for an image recovery process.

The utility model discloses an in-situ groundwater heavy metal pollution remediation device. Comprising two permeable reactive barriers arranged at intervals in the groundwater pollution plume runoff direction. A filling cavity is formed between the two permeable reactive barriers, and filling materials are arranged in the filling cavity. According to the utility model, a double-unit permeable reactive barrier is adopted to carry out an in-situ remediation method, the first unit is filled with a zeolite and volcanic rock composite filter material to adsorb and capture heavy metal pollutants, and the second unit is filled with an active charcoal composite filler to further efficiently adsorb residual heavy metals. In addition, a plant planting zone is constructed for planting heavy metal hyperaccumulation herbaceous plants, pollutants such as heavy metal in underground water are thoroughly removed through the absorption and stabilization effect of plants, and the underground water is purified. The device adopts stable, economic, efficient and safe active filler to adsorb and remove heavy metals in underground water, and has the advantages of efficient restoration, strong applicability, ecological environmental protection and the like.

The invention discloses a soil in-situ detection jet grouting remediation device and system.The soil in-situ detection jet grouting remediation device comprises a fluorescence spectrum analysis detection system which comprises a drill rod, an optical processing module, a signal module, a control module and a power module, and the optical processing module, the signal module, the control module and the power module are installed in a conical drill bit of the drill rod; and a high-pressure rotary jet grouting system is mounted in the drill rod. The detection system rapidly detects the physical and chemical properties of the polluted soil and transmits the physical and chemical properties to the control system through a data line of the control module, and the control system regulates the dosage according to the data and accurately injects and adds the drugs in real time.

The invention belongs to the technical field of water treatment, and particularly relates to an iron-carbon composite material, a preparation method of the iron-carbon composite material and application of the iron-carbon composite material to synchronous removal of perfluoro and polyfluoroalkyl compounds. According to the iron-carbon composite material provided by the invention, the iron metal element is anchored on the carbon carrier material in a nanocluster form, so that the problem of new pollution caused by iron dissolution is avoided, and the iron-carbon composite material is high in adsorption rate, large in adsorption capacity, recyclable and good in long-term stability. According to the invention, the PFAS is captured through hydrophobic interaction and electrostatic attraction by utilizing the coding characteristics, excellent adsorption performance is shown in treatment of various pollutants, rapid, efficient and synchronous removal of the PFAS is realized, and meanwhile, the high utilization rate of the iron-carbon composite material is ensured. As an adsorbent, the iron-carbon composite material provided by the invention is particularly suitable for repairing a perfluorooctanoic acid and / or perfluorooctane sulfonic acid combined polluted water body, the repairing is efficient, the cost is low, the removal condition of pollutants can be accurately judged, and the iron-carbon composite material is suitable for underground water or surface water.

The invention relates to the technical field of power line communication, in particular to a distributed power line communication data management system based on a block chain, in the invention, through innovative application of a convolutional neural network in an error repair module, accurate coding correction and rapid repair of error bits are realized, the integrity and effectiveness of data transmission are ensured, and the data transmission efficiency is improved. The method provides higher accuracy and adaptive capacity when reading and repairing bit streams bit by bit, deals with various error types in a complex communication environment, efficiently repairs error data packets in communication, and dynamically monitors and analyzes the signal-to-noise ratio and the error rate of a channel through the use of a finite-state machine, so that the error rate of the channel is effectively reduced, and the error rate of the channel is effectively reduced. The transmission strategy is adjusted in time when the channel state changes, so that the communication process is kept stable and efficient, the efficient transmission strategy is automatically generated according to the change of the channel state, the waste of channel resources is reduced, the bandwidth utilization rate is improved, and the data transmission failure caused by the unstable channel is avoided.

The invention discloses an adaptive restoration method and system for a blurred image, a terminal and a storage medium, and the method comprises the steps: obtaining a to-be-processed blurred image, carrying out the image analysis of the to-be-processed blurred image, obtaining an image blurring type and an image blurring degree, performing scheme matching according to the image blurring type and the image blurring degree to obtain a target deblurring scheme; and performing deblurring processing on the blurred image to be processed according to the target deblurring scheme to obtain a deblurred image, and performing optimization processing on the deblurred image to obtain a target image. According to the method, the blurred image can be self-adaptively repaired, and the optimal blurring processing scheme is selected according to the type and degree of the blurred image, so that the imaging quality of the image is greatly improved while the blurred image is effectively repaired.

The invention discloses a preparation method of a three-dimensional flower-cluster-shaped CdS QDs (at) ZnS / ZnO composite photocatalyst, belongs to the field of preparation of photocatalytic materials, and aims to solve the problem of relatively low photocatalytic efficiency. The preparation method comprises the following steps: 1, preparing zinc oxide: dissolving Zn (CH3COO) 2.2 H2O in deionized water, stirring until Zn (CH3COO) 2.2 H2O is completely dissolved, adding NaOH, stirring to form an emulsion, transferring the mixed emulsion into a polytetrafluoroethylene reaction kettle, and treating at 160 DEG C for 10 hours; 2, preparation of cadmium sulfide quantum dots (CdS QDs): dropwise adding thioacetamide (TAA) into a Cd (NO3) 2.4 H2O aqueous solution, continuously stirring and dropwise adding a NaOH solution, adjusting the pH value of the solution to 10.5, then adding a Na2S solution, stirring at 65 DEG C for 1 h, cooling to room temperature, and aging for 24 h; and 3, dissolving Zn (CH3COO) 2.2 H2O and TAA in deionized water, adding ZnO powder, adding CdS QDs, and carrying out rapid stirring. Putting into a microwave reaction instrument, reacting at 160 DEG C for 45 minutes, washing and drying. The three-dimensional flower-cluster-shaped CdS QDs (at) ZnS / ZnO composite photocatalyst is prepared through a microwave-assisted hydrothermal method, and the photocatalytic oxidation performance is effectively improved.

The invention discloses an enterprise management system based on big data analysis, and the system is characterized in that the system comprises a data collection module, a data preprocessing module, a data storage module, a data analysis module, a management decision module, a risk early warning module, and an intelligent cooperation module; the data acquisition module comprises an internal business data acquisition unit and an external market data acquisition unit, and the internal business data acquisition unit has a function of monitoring staff workflow data in real time; according to the invention, through an innovative data acquisition mode, the internal business data acquisition unit monitors the work flow of employees in real time, and the external market data acquisition unit captures multi-source data such as social media, data sources are comprehensively enriched, so that enterprises can know their own operation and market dynamics in multiple dimensions, and the enterprise management efficiency is improved. And a powerful basis is provided for accurate decision making.

The utility model discloses a device for synchronously removing multi-target pollutants of underground water, and relates to the technical field of underground water pollution remediation. The device for synchronously removing the underground water multi-target pollutants comprises a permeable reactive barrier, a first unit is arranged on the right side of the permeable reactive barrier, a permeable grid is arranged on the right side of the first unit, an automatic sample detection and analysis device is arranged above the permeable grid, and a second unit is arranged on the right side of the permeable grid. According to the device for synchronously removing the multi-target pollutants in the underground water, the pollutants are subjected to multi-stage enhanced treatment based on the synergistic effect of adsorption, electrochemistry, plant enrichment and microbial degradation through an electrodynamic force combined physical-chemical-phytoremediation technology, so that the efficient and lasting removal of the composite pollutants such as heavy metals, inorganic matters and organic matters in the underground water is realized; the method solves the problem of difficult cooperative treatment of multiple pollutants, and has the advantages of simple construction, low installation cost, efficient restoration, strong applicability, ecological environmental protection and the like.

The invention provides an embankment anti-seepage treatment method based on water conservancy construction, and relates to the field of water conservancy projects, and the method comprises the following steps: A, excavating at an embankment position needing to be implemented according to a construction drawing to form an embankment foundation, constructing on the embankment foundation to form anti-seepage geotechnical cloth, and compacting the anti-seepage geotechnical cloth; b, an anti-seepage panel is constructed on the anti-seepage geotechnical cloth, and the anti-seepage panel is compacted; c, paving a cushion layer and a transition layer on the anti-seepage panel according to construction requirements; d, burying different intelligent sensors at different parts of the constructed dike, and constructing a real-time monitoring network; and E, transmitting the data acquired by the sensor to a remote monitoring platform through the Internet of Things technology, and analyzing and processing the data. A traditional water conservancy construction dike anti-seepage method is improved, a physical anti-seepage structure and an intelligent monitoring technology are combined, leakage problem early warning can be timely and accurately carried out, effective repairing measures are rapidly taken after early warning, and the dike anti-seepage treatment performance is greatly improved.

The invention discloses a software code bug repairing system based on feature extraction and rule analysis, which is characterized in that a feature extraction module sequentially performs feature extraction on software codes to be analyzed according to code blocks to obtain code features; the codebase code library is an open source code library set and is used for storing standard software codes; the rule analysis engine is used for storing software code matching analysis rules, matching the code features obtained by the feature extraction module with standard software codes based on the rules in the rule analysis engine, and taking the software codes corresponding to the code features with the matching degree lower than a threshold value as software code vulnerabilities; the MISRA C code rule base is used for storing repair suggestions of various software code vulnerabilities, the software code vulnerabilities are matched with the software code vulnerabilities stored in the MISRA C code rule base, the repair suggestions corresponding to the software code vulnerabilities are found, and the software code vulnerabilities are repaired. According to the method, the software code vulnerabilities can be quickly positioned and repaired.

The invention relates to a method for repairing circumferential welds of a sulfur-containing gas field long-term service low-alloy steel gathering and transportation pipeline, and belongs to the technical field of metal pipe repairing. The repairing method comprises the following steps that dehydrogenation heat treatment and destressing annealing heat treatment are sequentially conducted on the low-alloy steel gathering and transportation pipeline circumferential weld to be repaired, and then the low-alloy steel gathering and transportation pipeline circumferential weld to be repaired is repaired through carbon fiber cloth. According to the repairing method disclosed by the invention, the circumferential weld is repaired from two aspects of material and stress aiming at the situation that the sulfur resistance of the circumferential weld of the low-alloy steel gathering and transportation pipeline serving in the sulfur-containing gas field for a long time is reduced and the stress cracking risk of sulfide is improved; according to the method, the sulfur resistance of the circumferential weld can be effectively repaired quickly and conveniently, the stress cracking risk of sulfide is reduced, the problem that an existing pipeline circumferential weld repairing method only aims at the defects of corrosion and the like is solved, and powerful technical support is provided for guaranteeing long-term service safety of a sulfur-containing gas field low-alloy steel gathering and transportation pipeline.

The invention discloses zero-valent iron shell reinforced microbial immobilized particles as well as preparation and application thereof, and belongs to the technical field of wastewater treatment. According to the preparation method, anaerobic digestion bacteria and a zero-valent iron reinforced material are embedded in porous organic gel formed by cross-linking polymerization of polyvinyl alcohol or sodium alginate in a layered manner, so that stress of an external poor water quality environment and the zero-valent iron material on microorganisms is reduced; in the prepared zero-valent iron shell reinforced microbial immobilized particle, the shell containing the zero-valent iron can protect microorganisms from being disturbed by external adverse environmental conditions, the environmental adaptability of the microorganisms is improved, and meanwhile the biological activity of the microorganisms in the porous inner core is reinforced; on the other hand, the biological toxicity of the zero-valent iron material to microorganisms is reduced, and the broad-spectrum applicability of the zero-valent iron is improved.

The invention relates to the field of water conservancy construction, and particularly discloses channel or river concrete lining plate construction repairing equipment and a repairing method thereof in a running water state, and the equipment comprises a truss, an operation module, an underwater non-dispersive concrete regeneration mixing module, a power system and an automatic control system, wherein the operation module comprises a cutting module, a grabbing module, a geomembrane repairing module and an underwater non-dispersive concrete printing module, and the cutting module, the grabbing module, the geomembrane repairing module and the underwater non-dispersive concrete printing module are selectively arranged on the crane beam according to operation content; and the automatic control system is respectively in electric signal connection with the power system, the underwater non-dispersible concrete regeneration mixing module and the operation module. The scheme can adapt to different channel bank slope surface or river channel slope surface conditions, and concrete lining plates at different damaged positions can be subjected to automatic cutting, dismantling, regeneration mixing, geomembrane repairing and underwater non-dispersive concrete printing operation.

The invention provides a brittle material appearance grinding and polishing device which comprises a machine frame, a grinding device and a polishing device. The clamping module is used for clamping and fixing the aluminum bar; the number of the clamping modules is two. The two clamping modules are installed on the upper portion of the operation table in parallel in a spaced mode. The number of the polishing modules is two; the two polishing modules correspond to the two clamping modules respectively and are installed on the operation table. The clamping modules and the polishing modules are arranged at intervals; the polishing module comprises a driving assembly and a grinding disc. The grinding disc repairing module is located above the grinding disc, fixedly connected with the rack and used for grinding and repairing the grinding disc; a control cabinet; according to the shape grinding and polishing device for the fragile materials, clamping, grinding and polishing and grinding disc repairing of the materials are achieved through the coordination effect of the multiple modules.

The invention discloses injectable and degradable composite drug-loading hydrogel as well as a preparation method and application thereof. The injectable and degradable composite drug-loading hydrogel comprises sodium alginate hydrogel, piezoelectric nanofibers and triamcinolone acetonide and / or ropivacaine, wherein the piezoelectric nanofibers and the triamcinolone acetonide and / or the ropivacaine are loaded on the sodium alginate hydrogel; the piezoelectric nanofibers are poly-L-lactic acid nanofibers. Through the synergistic effect of controllable release of the medicine and piezoelectric stimulation, the dual effects of continuous analgesia and neural restoration are achieved in the PHN treatment process, more effective treatment selection is provided for a PHN patient, complications caused by a traditional implantable electrode can be avoided, a more minimally invasive, convenient and safe treatment mode can be provided for the patient, and the treatment effect is good. And a theoretical basis is provided for future clinical practice.

The utility model discloses a petroleum pipeline crack plugging device which comprises a fixing pipe, a through groove, a plugging plate, a first pressing mechanism and a second pressing mechanism. The through groove is formed in the front end of the fixing pipe, the blocking plate capable of blocking and repairing the pipeline crack is arranged in the through groove, and the first pressing mechanism and the second pressing mechanism are arranged at the upper end, the lower end and the middle end of the through groove respectively, so that pressing on the blocking plate can be achieved under mutual cooperation, and the blocking plate is tightly attached to the petroleum pipeline crack; the crack can be effectively blocked and repaired, the filling groove, the filling block and other assemblies are arranged in the blocking plate, the blocking area of the blocking plate can be adjusted according to the size of the crack under mutual cooperation, waste is avoided, and the crack blocking device is easy to use, high in flexibility and high in practicability.

The invention discloses a remediation device for groundwater pollution abatement, and relates to the technical field of groundwater pollution abatement, the remediation device comprises a supporting base, a supporting column is fixedly mounted on the upper surface of the supporting base, a remediation treatment pond for remediating groundwater is arranged on the supporting column, and a first water suction pump is arranged on the remediation treatment pond; the output end of the first water suction pump is connected with a water outlet pipe, the water outlet end of the water outlet pipe extends into the remediation treatment pond, the input end of the first water suction pump is connected with a water inlet pipe, and the water inlet end of the water inlet pipe extends into underground water and is connected with a water taking device; the water taking device comprises a balance disc, a sealing sleeve is arranged in the center of the bottom of the balance disc, a connecting sleeve is arranged in the sealing sleeve, and the water inlet end of the water inlet pipe penetrates through the balance disc and is communicated with the connecting sleeve. The device has the effect of effectively converging and guiding underground water from different directions, so that the water collection efficiency is improved.

The utility model discloses mobile indigenous bacterium restoration and treatment coupling equipment which comprises a microorganism culture system, a high-pressure jet grouting injection system, an extraction and recovery system, a temperature control system, a protection monitoring system and the like. According to the utility model, a systematic integral remediation technology is adopted, the process measure is economical and feasible, the construction period is shorter, the environmental influence is small, the operability is strong, the invasion of external strains and the risk of secondary pollution are avoided, and the device is a movable, efficient and reproducible microbial ecological remediation device for polluted soil and underground water. The device can be used for solving the problems in the aspects of site repair project technical methods, repair efficiency, construction cost and the like, and finally the concentration of organic pollutants in a site is rapidly reduced to be below a repair target value. The device has the advantages of being simple in structure, convenient to use and capable of efficiently repairing contaminated soil and underground water in the low-permeability soil layer of the organic contaminated site.

The invention discloses a method for restoring arsenic and halogenated hydrocarbon combined contaminated soil through oxidation enhanced leaching and a leaching agent. The leaching agent is composed of a first-stage leaching solution and a second-stage leaching solution. The first-stage leacheate eluting agent is composed of persulfate and strong base; the second-stage leacheate eluting agent is composed of organic acid and alcohol. According to the method, a two-stage leaching mode is adopted for the arsenic and halogenated hydrocarbon combined contaminated soil, synchronous removal of arsenic and halogenated hydrocarbon in the contaminated soil can be achieved through the oxidation strengthening synergistic interaction effect of the leaching agent, the toxicity of arsenic can be reduced, potential safety hazards in the subsequent waste liquid treatment process can be reduced, and the method is mild in condition and easy to implement. The method has the advantages of high removal rate, low cost and the like.

The present invention relates to the field of photovoltaic module coating technology, and specifically discloses a coating robot and coating method for repairing photovoltaic modules, including: a trailer body, an automatic coating liquid replenishing mechanism, a controller, a spraying robot, a coating liquid storage box and a pump body; the coating liquid automatic replenishing mechanism is embedded on the left side of the top of the trailer body; the controller is arranged on the front side of the coating liquid automatic replenishing mechanism; the spraying robot is arranged on the outside of the trailer body; the coating liquid storage box is arranged on the top of the trailer body and located on the right side of the coating liquid automatic replenishing mechanism; the pump body is arranged on the top of the trailer body and located on the right side of the coating liquid storage box. The present invention can realize the automatic filling and feeding of the coating liquid inside the spraying robot, reduce the manual operation items of the staff, reduce the contact between the staff and the coating liquid, improve safety, and realize the automatic storage of the spraying robot after the operation is completed.

The invention belongs to the technical field of coal mine water-resisting layer reconstruction, and particularly relates to a device and method for repairing and reconstructing a coal mine water-resisting layer. On the basis of the MICP technology, the coal mine water-resisting layer is repaired and reconstructed by grouting the water-resisting layer through the ground, a microorganism solution and a cementing solution are efficiently, accurately and conveniently injected, rock mass fine pores can be injected, the device is environmentally friendly, reactants of different layers of the water-resisting layer are monitored in real time, injection parameters are regulated and controlled, and the water-resisting layer is repaired and reconstructed. The reaction efficiency of the microbial solution and the cementing liquid is improved, water guiding cracks of the water-resisting layer are blocked, efficient repairing of the water-resisting layer is achieved, and then water resource loss of the water-bearing layer is prevented. In addition, the method provided by the invention is low in cost and remarkable in economic benefit and ecological benefit, and has the potential of large-scale application.