66results about How to "Efficient repair" patented technology

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 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 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 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 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 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 invention discloses penicillium oxalicum TWSF1 and application thereof, and belongs to the technical field of agricultural microorganisms. The preservation number of the penicillium oxalicum TWSF1 is CGMCC (China General Microbiological Culture Collection Center) No.41553, and the penicillium oxalicum TWSF1 is preserved in China General Microbiological Culture Collection Center on October 25, 2024. The strain is separated from alpine soil in Branchiomega in the autonomous region of Tibet, can well grow under the condition of 4-35 DEG C, normally grow under the condition that the salt concentration is 5%, can grow under the condition that the salt concentration is 10% and normally grow under the condition that the pH is 10, and has high inorganic phosphorus dissolving capacity; the strain has better environmental adaptability in saline-alkali soil in northern cold regions in China, can effectively repair saline-alkali soil, and has higher application prospect and economic value.

The invention relates to the technical field of soil remediation equipment, and discloses a soil remediation device for ecological environment governance, which comprises a bearing seat which is used as a basic component of the whole device and is used for assembling and bearing each treatment mechanism and a subordinate lower structural member; the deep ploughing ventilation mechanism is arranged in the middle of the front end of the bearing seat and used for conducting deep ploughing and turning ventilation treatment on the polluted and hardened soil. By adding and arranging the hardening treatment mechanism, after deep ploughing and ventilation treatment are completed, the mechanism firstly precisely crushes turned soil hardening blocks to effectively disintegrate the compact structure of the soil hardening blocks, then multi-angle crushing rods further exert force to perform secondary crushing on the hardening blocks, the crushing degree is greatly improved, and the crushing efficiency is improved. By means of the treatment mode, stubborn soil hardened blocks can be thoroughly smashed, the soil texture is more uniform and loose, follow-up remediation operation is facilitated, plant root systems in the hardened blocks can be ingeniously separated, and interference of the plant root systems on the remediation process is avoided.

The application belongs to the technical field of groundwater aquifer organic pollution remediation, and discloses a cyclodextrin reinforced prediction model for migration distance of a pollution plume in a natural attenuation process of polycyclic aromatic hydrocarbons in a groundwater aquifer, which covers parameters influencing the natural attenuation process of polycyclic aromatic hydrocarbons, such as hydrogeological characteristics of the groundwater aquifer, pollution degree of a site, biodegradation rate, and cyclodextrin reinforcement technology, and quantitatively characterizes the influence law of changes of the above parameters on changes of the migration distance of the polycyclic aromatic hydrocarbon pollution plume. The application can be applied to optimization of a monitoring natural attenuation remediation technology for a polycyclic aromatic hydrocarbon contaminated site, and provides technical guidance for efficient remediation of the contaminated site.

The invention discloses a high-pressure roller mill roller surface wear self-adaptive repair method, and relates to the field of mine crushing, and the method comprises the following steps: S1, wear detection; step S2, performing pretreatment; s3, carrying out gradient restoration; step S4, curing and forming; and S5, performing adaptation verification. By the adoption of the self-adaptive repairing method for roller surface abrasion of the high-pressure roller mill, precise repairing and efficient repairing of roller surface abrasion are achieved, the abrasion resistance of a repairing layer and the binding force of a base body are improved, the service life of the roller surface is prolonged, the repairing cost and the operation and maintenance frequency are reduced, and meanwhile it is ensured that the repaired roller surface is matched with the crushing working condition.

The invention provides a missing data restoration method, system and equipment and a missing data restoration model construction method, system and equipment, a missing data restoration model comprises a generator and a discriminator, and the construction method comprises the steps of performing preprocessing operation on a sample missing data set to obtain a sample to-be-restored data set, and performing preprocessing operation on an initial time sequence data set to obtain a sample real data set; inputting the sample to-be-repaired data set into a generator to output a sample repair data set corresponding to the sample to-be-repaired data set, inputting the sample to-be-repaired data set and the sample real data set into a discriminator to output a discrimination result, feeding back the discrimination result to the generator, and performing mutual adversarial training on the generator and the discriminator to obtain a sample repair data set corresponding to the sample to-be-repaired data set. According to the method, the missing data restoration model is constructed, the input actual missing data set is restored through the missing data restoration model, the actual restoration data set corresponding to the actual missing data set is output, and the missing time series data is comprehensively, accurately and effectively restored.

The invention relates to a pipeline upgrading optimization method suitable for an old building, and the method is characterized in that the method comprises the following steps: S1, preprocessing and three-dimensional digital scanning diagnosis; s2, intelligent planning of a spraying path and a strategy; s3, intelligent spraying operation based on real-time feedback; and S4, rapid curing and digital acceptance.

This application relates to the field of data processing technology, and in particular to a method, apparatus, device, and storage medium for model training and 3D mesh reconstruction, used to rapidly generate high-quality 3D results. The model training method includes: obtaining an initial repair model by distilling a student model to be trained; the initial repair model is used to make the input initial sample set, after M iterative repairs, present the shape of a 3D point cloud corresponding to the initial sample set; obtaining an intermediate repair model by distilling the initial repair model; the intermediate repair model is used to make the input intermediate sample set, after N iterative repairs, present the shape of a 3D point cloud corresponding to the intermediate sample set; and obtaining a target repair model by adversarial training of the intermediate repair model based on the initial repair model, so that the error between the results obtained by repairing the same target sample set using the target repair model and the initial repair model conforms to a preset error range.

The application discloses a kind of high-cold degraded grassland's repair method, belong to degraded grassland repair technical field, the method of the application includes soil pretreatment, grass seed sowing and later management and protection etc., under the premise that grassland is not ploughed, improvement agent is handled to grassland after sowing, and then the sowing of grass seed is carried out, and then, while not destroying the original structure of soil, the good germination and growth environment of grass seed is ensured by improvement agent, and the physicochemical properties of degraded grassland are improved, and each step is combined to efficiently repair degraded grassland ecology, and the method of the application has good application prospect in high-cold degraded grassland repair.

The present invention provides a system combining an optical time domain reflectometer and an optical fiber vibration sensor, which is applied to the field of optical cable line operation and maintenance technology, and comprises: an Arm processing core, a light source and an optical switch driving circuit, a narrow line width pulse light source, a first broadband light source, a second broadband light source, a first optical fiber amplifier, a first optical switch, a wavelength division multiplexer, a three-terminal optical ring type device, an optical interface, a communication optical fiber, a second optical switch, a second optical fiber amplifier, a photoelectric detector, an analog switch, a first amplifier circuit, a second amplifier circuit, a high-speed data acquisition module and a touch display module, so as to realize the combination of a DVS system and an OTDR system in the underlying hardware optical path and control, and comprises the same optical interface, the same photoelectric detector, and the switching of OTDR and DVS functions through the unified control of two optical switches, so as to realize the functional integration and convenient controllability of a single system device.

The invention relates to the technical field of blade repairing treatment, discloses a cold spraying repairing method for an aluminum alloy blade and aims to solve the problems that a base body is prone to being damaged and the performance of a repairing layer is poor in an existing repairing method. The method comprises the steps of mechanical polishing, cold spraying, mechanical coping and follow-up protection, specifically, surface inspection, pretreatment, spraying operation and multi-dimensional inspection are sequentially conducted on cold spraying, 501.1-mark pure aluminum-Al2O3 mixed powder is adopted, after positioning and precise parameter spraying are conducted through a special tool, coping is conducted till the molded surface requirement is met, and then micro-arc oxidation and paint spraying protection are conducted. The method is low in cold spraying temperature, free of damage to a base body, excellent in repairing layer performance, high in precision, high in corrosion resistance and abrasion resistance and stable and reliable in process, the operation and maintenance cost can be remarkably reduced, and the service life of the paddle is prolonged.

The invention relates to a cold spraying rapid repairing method for ship deck defects, and belongs to the technical field of cold spraying. According to the technical scheme, aiming at the problem that various irregular shape defects are generated due to seawater corrosion in the using process of a ship deck, efficient cold spraying repair research based on the defects is developed. The repairing method comprises the following steps: scanning a defect by using a laser three-dimensional contourgraph to obtain a three-dimensional shape of the defect; extracting a defect edge contour; determining a minimum cold spraying repair area of the circle by adopting a minimum bounding box algorithm; and finally realizing defect repair by establishing a function of a cold spraying repair path. According to the method, the minimum cold spraying repair area is defined as a circle, and the method is also suitable for other basic standard geometric shapes meeting the requirements. According to the cold spraying repairing scheme provided by the invention, the cost is effectively reduced, and the method has important significance and application value for improving the operation efficiency.

This invention relates to the field of water remediation technology, specifically disclosing a Trichoderma XH5 fungus, a hybrid system, its construction method, and its applications. The Trichoderma XH5 fungus was deposited at the China Center for Type Culture Collection on September 29, 2025, with accession number CCTCC: M 20252142, and is classified as follows: Eastern Trichoderma XH5. The Trichoderma XH5 provided by this invention has the ability to denitrify, specifically by improving the removal rates of nitrates, total nitrogen, and nitrites.

The present invention discloses a rail repair operation equipment and a repair method thereof, belonging to the technical field of rail repair. The rail repair operation equipment includes a vehicle body, and the bottom of the vehicle body is provided with a measuring module, a profile repair module, a transition processing module and a smoothness recovery module. By integrating the measuring module, the profile repair module, the transition processing module and the smoothness recovery module on the vehicle body, a set of equipment can simultaneously repair the corrugation and profile of the rail, and can simultaneously handle the profile and smoothness problems of the rail, filling the deficiency of a single processing method in the prior art. The problem that the existing rail repair technology can often only handle a certain type of defect separately is solved; the vehicle body can drive the measurement module, the profile repair module, the transition processing module and the smoothness recovery module to move, which can optimize the rail repair operation process, reduce the number of round-trip grinding, and reduce labor costs and equipment use time.

The utility model discloses a heavy metal contaminated soil leaching device which comprises a leaching mechanism, a turnover mechanism and a circulating system. The drip washing mechanism comprises a base, a drip washing box arranged on the base, a water inlet box arranged on the drip washing box, a movable plate piece arranged below the drip washing box, a drip washing barrel detachably installed on the movable plate piece, a stirring mechanism arranged on the rear portion of the interior of the drip washing box, a spray washing mechanism arranged above the drip washing box and a detection mechanism. The turnover mechanism comprises a rotating assembly arranged on the base, a first electric sliding rail arranged on the rotating assembly and a clamping mechanism arranged on the first electric sliding rail, and the circulating system comprises an electrolysis device and an adjusting tank which are arranged on the base. According to the heavy metal contaminated soil remediation device, remediation of heavy metal contaminated soil is achieved through cyclic utilization of leacheate, water resources and chemicals are effectively saved, remediation efficiency is improved, the cleaning process is simplified through the automatic dumping mechanism, and manpower and time cost is saved.

The invention discloses an efficient self-repairing vehicle-mounted OCA adhesive, a preparation method thereof and an adhesive film, the OCA adhesive is prepared from the following raw materials in parts by weight: 60 parts of 2-ethylhexyl acrylate, 10-20 parts of cyclohexyl acrylate, 15-25 parts of 2-hydroxyethyl acrylate, 5-10 parts of hydroxyethyl dithiodiacrylate, 0.45-1.8 parts of a photoinitiator, 0.5-2 parts of a silane coupling agent, 0.5-2 parts of 1, 2-propylene glycol, 0.5-2 parts of a curing agent, 0.5-2 parts of a curing agent, 0.5-2 parts of a curing agent and 0.5-2 parts of a curing agent. And 0.05 to 0.2 part of 1, 6-hexanediol diacrylate. In the OCA adhesive, a dynamic covalent bond repairing mechanism introduced by dithio diacrylate and a hydrogen bond mechanism of hydroxyethyl acrylate generate a synergistic effect, so that the repairing efficiency is improved in a leap-over manner; and the scratch can be efficiently repaired and the stability and definition of screen display can be maintained under the complex environments of vehicle-mounted high and low temperature, high humidity, strong ultraviolet rays and the like.

The application provides a small molecule peptide and leukocyte extract composition and application thereof, and belongs to the medical technical field.The composition comprises leukocyte extract prepared by a specific method and a small molecule peptide ZKSA-P-1001 (amino acid sequence: RWRFKWKK), and the mass ratio of the two is 1:1 to 3:1.The experimental results show that the leukocyte extract and ZKSA-P-1001 have a significant synergistic effect in combination application.Even when ZKSA-P-1001 is used alone at a low concentration with limited activity, the composition can significantly improve the migration ability of skin fibroblasts.Animal model experiments further confirm that the medicine containing the composition of the application can significantly accelerate the healing of infectious skin damage, especially in the early healing stage.The application provides an efficient, synergistic and promising skin repair solution.

This utility model relates to the field of steam trap technology, specifically a high-pressure valve seat thermodynamic steam trap, comprising a valve body and a valve cover. The valve body has an inlet and an outlet, and a cavity is provided between the valve body and the valve cover. A valve seat is disposed within the cavity, and a supporting step is provided on the valve seat. A pressing step is provided on the valve cover, and the pressing step presses against the supporting step. A valve plate is disposed above the valve seat. An inlet flow channel and an outlet flow channel are provided within the valve seat, with the inlet flow channel connecting to the inlet and the outlet flow channel connecting to the outlet. In this utility model, the valve body and valve seat are independent of each other. The valve seat is fixed to the valve body by a sealing gasket. During maintenance, it is not necessary to disassemble the steam trap from the pipeline; only the connecting bolts between the valve cover and the valve body need to be loosened to remove the valve seat and valve plate for inspection or direct replacement of new parts. This simplifies the maintenance process, shortens maintenance time, and reduces maintenance costs.

The application discloses an optical element repairing device and a repairing method thereof, and relates to the optical technology field.The optical element repairing device comprises a pumping light source, an online monitoring mechanism and a repairing mechanism.The pumping light source is used for emitting pumping light towards a surface defect of a sample to be repaired.The online monitoring mechanism comprises a detecting light source and a first image processor.The detecting light source is used for emitting detecting light towards the surface defect of the sample to be repaired.The first image processor is used for receiving the detecting light reflected by the surface defect of the sample to be repaired and obtaining image information of the surface defect of the sample to be repaired.The repairing mechanism is used for repairing the surface defect of the sample to be repaired according to the image information of the surface defect of the sample to be repaired.The optical element repairing device can accurately and efficiently repair the damage at a fixed point, thereby improving the problems of low repairing rate and low repairing success rate in the prior art.

The utility model discloses a pipeline ultraviolet curing repairing device which comprises a first adjusting module, a second adjusting module and an ultraviolet curing lamp, the second adjusting module is installed on the first adjusting module, and the ultraviolet curing lamp is installed on the second adjusting module. The first adjusting module comprises a first mounting plate, a first lead screw mounting block, a first lead screw, a first moving block, a first sliding plate and a first rotary knob. According to the pipeline ultraviolet curing repairing equipment disclosed by the utility model, the first adjusting module, the second adjusting module and the ultraviolet curing lamp are linked, the repairing equipment is mounted on a movable device such as a vehicle, and then the height of the ultraviolet curing lamp is adjusted according to the position needing to be irradiated, so that the irradiation angle is matched with the repairing position; and a long or large-area pipeline can be rapidly and efficiently repaired through the movable device.

The invention relates to the technical field of biological medicine, in particular to a lung targeting peptide and application thereof in preparation of an extracellular vesicle drug delivery system. The amino acid sequence of the lung targeting peptide provided by the invention is as shown in SEQ ID NO. 2. The lung targeting peptide with alveolar epithelium targeting property is obtained through a phage display technology, the lung targeting peptide is combined to the surface of mesenchymal stem cell-derived extracellular vesicles (EVs), and the prepared targeting delivery system can act on lung epithelial cells more accurately and more long-acting, so that effective repair and protection of a lung barrier are realized. The invention provides an effective targeted delivery strategy for precise treatment of lung diseases, and has a good application prospect.

The invention relates to the technical field of cosmetics, in particular to a sensitive skin repairing composition for a severe cold environment in winter and application of the sensitive skin repairing composition. The repairing composition comprises a camellia flower extract, camellia seed oil, camellia flower PDRN, galactoglucan and an European chestnut leaf extract, and the repairing composition effectively resists skin injury caused by a severe cold environment in winter by activating heat shock protein, inhibiting a cold receptor TRPM8, improving microcirculation and constructing a skin physical barrier. The skin-care lotion can effectively moisturize skin, relieve the problems of red skin, itching skin, scales, cracking skin and the like, has the effects of efficiently moisturizing, relieving and repairing skin, is mild and non-irritant, and is suitable for people with sensitive skin to use.

The invention discloses a complex microbial inoculant for repairing heavy metal-organic pollutant combined polluted soil as well as a preparation method and application thereof, and belongs to the technical field of preparation of soil repairing microbial inoculants. The preparation method comprises the following steps: firstly, modifying starch by using glucosidase, then loading a composite strain, glucosidase and an enzymolysis product (oligosaccharide or monosaccharide) into the modified starch, and finally, clathrating the substances by using phosphorus-doped ferrihydrite with a hierarchical pore structure, so that the activity and stability of the obtained composite microbial agent can be remarkably improved; the efficient remediation of the heavy metal and organic pollutant combined polluted soil is realized, and the problems existing in the current common complex microbial inoculants are effectively solved; the raw materials are simple and easy to obtain, and the preparation process is simple and suitable for large-scale popularization and application.