303 results about "Pollution Remediation" patented technology

The invention provides a contaminated site remediation technology scoring system which comprises a multi-dimensional evaluation index system construction module, a situational weight dynamic adjustment module, a remediation technology applicability scoring module, an uncertainty analysis and sensitivity test module, a scoring result visualization module, a technical scheme sorting and screening unit and the like. Through four innovations of a dynamic weight adaptation mechanism, a multi-model fusion scoring algorithm, a technology combination scheme evaluation module and uncertainty robust analysis, the problems of single dimension, weight solidification, difficulty in quantification of a synergistic effect and the like in pollution remediation technology evaluation are systematically solved; and an objective, efficient and transparent intelligent decision-making tool is provided for repairing a complex polluted site.

The invention provides a multi-modal big language model inference engine which comprises a pre-training big language model adaptation layer, a pollution remediation knowledge graph enhancement module, a multi-modal information understanding and fusion unit, a technology implementation optimization module and an inference chain and decision interpretation generator. The system adopts a hierarchical modular design, all components communicate through a standardized API interface, efficient and stable data circulation is ensured, and the problems of knowledge application limitation, opaque reasoning process, difficulty in professional knowledge fusion, knowledge updating lagging, limited multi-modal data processing capability and the like in the existing contaminated site remediation decision process are solved.

The invention discloses a complex microbial inoculant for treating underground water as well as a preparation method and application thereof, relates to the field of sewage treatment, and aims to solve the problem that TBBPA and nitrate in underground water are difficult to remove at the same time in an existing biological treatment method. The composite microbial agent is prepared from pseudomonas koreensis Y5-11, acinetobacter pidermatum LYS-5, Pseudomonas sp. Y39-6 and psychrophilic bacteria F5-6, and the pseudomonas sp. Y5-11, the acinetobacter pidermatum LYS-5, the Pseudomonas sp. Y39-6, the psychrophilic bacteria F5-6 and the psychrophilic bacteria F5-6 are added into the microbial agent. The four strains are respectively subjected to fermentation culture, and the four fermentation liquids are mixed to prepare the complex microbial inoculant. The four bacteria in the complex microbial inoculant have a stronger metabolism complementation effect, and the effect on composite pollution remediation is more remarkable. The complex microbial inoculant is used for removing TBBPA and nitrate in underground water at the same time, the complex microbial inoculant has biodiversity, and the treatment result conforms to the water quality characteristics of the underground water.

The invention relates to the technical field of soil remediation, and provides a soil pollution remediation process which comprises the following steps: distributing points in grids of an area to be remediated, measuring the content of heavy metals and the concentration of organic pollutants, applying multi-frequency microwave radiation, synchronously applying ultrasonic treatment, and injecting a complex microbial inoculant containing sphingomonas, aspergillus niger spores and a nitrogen and phosphorus nutrient solution. A direct-current electric field is applied, pH, oxidation-reduction potential Eh and temperature parameters are monitored and measured in real time through an embedded sensor, a repair by-product recovery system is arranged, the purity of recovered metal is not lower than 98%, and mobile repair equipment is used in a matched mode. According to the method, the pollution degree is accurately quantified by constructing the pollution index PI, and dynamic regulation and repair are realized in combination with real-time monitoring parameters of a sensor. The pollutant removal efficiency is improved through the synergistic effect of multiple technologies, metal resource recovery is achieved through a repair by-product recovery system, traditional problems are solved, and efficient and environment-friendly repair is achieved.

The invention discloses a farmland heavy metal restoration path planning system based on unmanned aerial vehicle remote sensing data driving, and relates to the technical field of farmland restoration, and the system comprises a data acquisition module which is configured to collect real-time remote sensing image data; the pollution remediation sub-region division module is configured to divide pollution remediation sub-regions; the attribute identification module is configured to identify land parcel attribute information; the restoration means evaluation module is configured to evaluate an initial restoration coefficient; the pollution remediation subarea association effect evaluation module is configured to evaluate a remediation migration effect; the composite repair coefficient calculation module is configured to comprehensively evaluate a composite repair coefficient; the global remediation optimization module is configured to globally plan a heavy metal remediation means implemented in each pollution remediation sub-region; and the scheme output module is configured to output a repair path of each heavy metal repair means. The method has the advantages that powerful intelligent decision support is provided for efficient, accurate and synergistic remediation of heavy metal pollution of the complex farmland.

The invention discloses a sodium alginate embedded iron-carbon microcapsule material for repairing cadmium and arsenic polluted soil and a preparation method of the sodium alginate embedded iron-carbon microcapsule material, and belongs to the technical field of soil heavy metal pollution repairing materials. The material comprises straw biochar, high-iron steel slag powder, a sulfydryl acetylated chitosan-iron monatomic cluster compound, a boron-doped graphitized carbon coated cobalt ferrite nanosheet, sodium alginate, calcium chloride and sodium carbonate. Wherein the sulfydryl acetylated chitosan is prepared by reacting chitosan with sulfydryl acetic anhydride, dialyzing and drying, and performing solvothermal reaction with ferric nitrate under high pressure. The preparation method comprises the following steps: pyrolyzing and drying the straw biochar, reacting the high-iron steel slag with sulfuric acid, adding the biochar, adjusting the pH value, adding sodium carbonate, mixing to obtain an iron-carbon-based passivation material, mixing with two modified compounds, mixing with a sodium alginate solution, dropwise adding a calcium chloride solution, and stirring and curing. The material can be applied to remediation of cadmium and arsenic polluted soil.

The invention relates to the technical field of soil heavy metal pollution remediation, and particularly discloses a preparation method of iron-modified biomass charcoal, which comprises the following steps: preparing garden waste into biomass charcoal (PBC), and then carrying out iron modification by using FeCl3 to obtain iron-based biomass charcoal (PIBC). The invention further provides a method for repairing the cadmium-arsenic combined polluted soil through the iron-modified garden waste biochar. The method comprises the steps that the iron-modified biomass charcoal prepared through any method is added into the soil; the iron-modified biomass can be applied as a base fertilizer at one time, and is turned over to be fully and uniformly mixed with a plough layer of soil. By adopting the method disclosed by the invention, the bioavailability of Cd / As in the soil can be synchronously reduced, and waste resources are utilized to realize pollution control by waste.

This invention discloses an electrically controlled enrichment catalytic membrane, its preparation method, and its application in water treatment, belonging to the field of environmental organic pollution remediation technology. The electrically controlled enrichment catalytic membrane comprises a substrate layer and a copolymer coating layer with reversible electro-oxidation-reduction properties. The substrate layer is a titanium suboxide conductive ceramic membrane with a pore size of less than 1 micrometer, and the copolymer coating layer is an organic blend polymer TMA containing nitro radical functional groups. x -co-TMPMA (1‑x) Where x% represents the degree of oxidation. This invention also provides an application of the above-mentioned electrically controlled enrichment catalytic membrane in water treatment for the removal of organic pollutants. The electrically controlled enrichment catalytic membrane is used as a filter membrane in an electrochemical water treatment device. Two filter membranes are connected to the two poles of an AC power system, with the positive and negative poles reversing during a cycle. The polluted solution is controlled to flow sequentially through the two filter membranes. By adjusting the positive and negative bias parameters on the filter membranes, hydrophobic organic pollutants in the polluted solution are adsorbed and oxidized for removal. This method is energy-saving, environmentally friendly, and easy to operate.

The invention discloses hydrogen slow-release particles based on biochar-magnesium hydride and a preparation method of the hydrogen slow-release particles. The hydrogen slow-release particles are formed by mixing magnesium hydride with the purity larger than 99%, biochar and an adhesive. The high-purity magnesium hydride finished product is adopted, the environment heavy metal pollution repairing function of the biochar is utilized, the hydrogen release time in magnesium hydride is prolonged, crop growth and environment pollution repairing are promoted through controllable slow-release hydrogen, and crop growth is promoted.

The invention provides an intelligent in-situ remediation system and method for river and lake polluted bottom mud, and relates to the technical field of river and lake bottom mud pollution remediation. The system comprises a bottom mud pollution enrichment and purification device, a bottom mud pollution in-situ monitoring device, a bottom mud water content in-situ tester, an intelligent monitoring and control system, a vacuum negative pressure device, a buoy and a floating ball. The bottom mud pollution enrichment and purification device, the bottom mud pollution in-situ monitoring device and the bottom mud water content in-situ tester are connected with floating balls and then inserted into bottom mud, and the intelligent monitoring and control system and the vacuum negative pressure device are installed on a buoy located on the water surface. According to the invention, the sediment pollution in-situ monitoring device, the sediment water content in-situ tester, the sediment pollution enrichment and purification device and the like are coupled with the intelligent monitoring and control system, so that rapid response and intelligent in-situ remediation of sediment pollution are realized, and the problems of hysteresis quality, blindness and the like in the existing remediation technology are solved; the bottom mud pollution remediation efficiency is obviously improved.

The invention discloses a soil remediation material as well as a preparation method and application thereof, and belongs to the technical field of solid waste treatment and soil pollution remediation. The soil remediation material comprises 20-50 parts of phosphate tailings, 15-20 parts of phosphogypsum, 1-25 parts of ferric salt, 5-20 parts of charcoal, 5-15 parts of zeolite, 5-10 parts of potassium feldspar and 1-6 parts of a microbial agent. In addition, the invention also provides a preparation method of the soil remediation material, which comprises the following steps: dissolving ferric salt in water, adding phosphate tailings to obtain a suspension, then adjusting the pH value of the suspension to 7-8, and reacting to obtain phosphate tailings and ferric salt hydrolysate; stirring and mixing phosphogypsum, phosphate tailings, the iron salt hydrolysate and the like in proportion to obtain a mixed material; and aging the mixed material, and granulating to obtain the soil remediation material. The soil remediation material provided by the invention can effectively remove cadmium and arsenic in soil under the cooperation of all the components.

The invention discloses a preparation method of an iron-doped cerium-based perovskite type high-selectivity Cu ion capture stabilizing agent and application of the stabilizing agent in heavy metal pollution remediation, and the stabilizing agent is prepared through a sol-gel method and comprises the steps that cerous nitrate and citric acid are dissolved in water, and the mixture is heated and stirred to be gel-shaped; standing the gel solution in a drying oven at a constant temperature to obtain a Fe-Ce-PVSK precursor; grinding the precursor into powder, putting the powder into a quartz boat, and calcining in an air atmosphere through a horizontal tube furnace to obtain a product; and finally, washing to be neutral to obtain the iron-doped cerium-based perovskite stabilizing agent. Due to the high oxygen vacancy concentration and rich active sites, the stabilizing agent has high selectivity and high adsorption capacity and has specific capturing capacity on Cu < 2 + >. The preparation method has mild reaction conditions. The stabilizing agent can effectively reduce the bio-availability of heavy metals in a polluted matrix, promote healthy growth of plants, and realize pollution restoration and ecological function recovery at the same time.

The invention relates to the technical field of soil remediation, in particular to a soil turning device for soil pollution remediation, which comprises a base, a liquid storage tank is mounted at the top of the base, a shell is welded at one end of the bottom of the base, an air cylinder is mounted at the top end of the base, and a sliding plate sliding in the air cylinder is fixedly connected to the output end of the air cylinder. According to the invention, a rotary tillage blade is driven to operate through a motor, a buffer mechanism protects the blade when encountering large resistance, the repair operation is ensured to be stable, the blade is stressed to enable a piston to extrude air, and the blade is driven to rotate, so that the efficiency of the rotary tillage is improved, and the efficiency of the rotary tillage is improved. In addition, the push rod is in linkage with the angle adjusting mechanism, the soil turning efficiency is improved, the blade can flexibly avoid obstacles, stress is dispersed, and the service life of the blade is prolonged.

The invention provides a pH value adjusting method and system for soil remediation, and relates to the field of soil pollution remediation, the pH value and ORP value of soil are obtained and analyzed, the dominant mode of pH change is determined based on coupling judgment logic, then the remediation agent adding strategy is adjusted, and the remediation effect is improved. The problem that the influence of microbial activity on pH is not fully considered in the prior art is effectively solved, blind adding of a repairing agent is avoided, the repairing accuracy and efficiency are improved, the problems that in the prior art, the biogeochemical process is not effectively coupled, the reason of pH change is difficult to accurately recognize, and the repairing agent is too excessive or insufficient are solved, and the repairing effect is improved. And the repairing accuracy and sustainability are improved.

The invention provides equipment capable of dissolving and extracting salt in saline-alkali soil and polluted soil and a use method of the equipment. Soluble salt ions in saline-alkali soil and a polluted soil aqueous solution are extracted mainly by using a reverse osmosis technology. Comprising equipment capable of adjusting the content of soluble salt in soil and a technical method for flushing the soil through cooperation of water circulation. The equipment mainly comprises a two-way flushable pre-filter device, a booster pump, a reverse osmosis membrane filter element group, a tail end pure water outlet pipe and a wastewater outlet. Wherein the front filtering device is divided into three stages from coarse filtering to fine filtering and is mainly placed on the rear side of a cultivated land; the tail end pure water outlet pipe comprises a row of multiple water outlets and is mainly placed on the front side of the cultivated land. The device can be integrated into a vehicle, has the advantages of being high in treatment speed, good in treatment effect, water-saving and environment-friendly, and is wide in application prospect.

The invention discloses a method for degrading short-chain chlorinated paraffin in soil based on microwave irradiation, and belongs to the technical field of soil pollution remediation. The invention aims to solve the problems of high energy consumption, long reaction time, low efficiency and low degradation rate of the existing method for degrading the short-chain chlorinated paraffin in the soil. The method comprises the following steps: 1, soil pretreatment; 2, extracting by using normal hexane; 3, carrying out microwave degradation treatment; and 4, after the reaction is finished, naturally cooling to room temperature to obtain the soil without the short-chain chlorinated paraffin. The short-chain chlorinated paraffin (SCCPs) in the soil is degraded by a microwave method, and gt can be degraded within 10-15 minutes through the synergistic effect of a microwave heat effect and a non-heat effect; the efficient degradation rate is 90%. The invention provides an efficient, economic and ecologically sustainable solution for the SCCPs polluted soil.

The invention discloses a preparation method of a pesticide pollution remediation agent for groundwater of karst landforms, and relates to the technical field of groundwater pollution remediation. The method has the effect of enhancing pesticide degradation, pesticide pollutants can be efficiently degraded in a complex environment of karst underground water by compounding hard water-resistant fungi, dehalogenation bacteria and denitrifying bacteria, and a better remediation effect is achieved; the medicament can improve the stability and the adsorption capacity of the carrier, the bionic calcium phosphate nano carrier is adopted, the specific surface area is high, the adsorption capacity is excellent, the adsorption capacity on pollutants can be effectively enhanced, and the remediation effect is improved; the agent has an efficient repairing mechanism, the load capacity of the flora is enhanced through biological induction mineralization and physical adsorption enhancement of a bacterium-carrier complex, the release rate of the flora is controlled through an intelligent coating technology, and precise repairing is achieved.

The invention discloses a soil or groundwater remediation agent in-situ precise injection and transmission effect evaluation test system, and belongs to the technical field of stratum pollution remediation. The device comprises a stratum simulation assembly, a stratum pressurization assembly and a parameter detection assembly, wherein the stratum simulation assembly comprises an experimental silo for storing a simulated stratum sample; the stratum pressurization assembly is arranged opposite to the experiment silo and can simulate pressure of different stratum depths; the parameter detection assembly comprises a plurality of pressure detection units which are vertically arranged at intervals along the experimental silo, each pressure detection unit comprises a capillary pressure measuring pipe and a plurality of pressure sensors, the capillary pressure measuring pipes are arranged in the radial direction of the experimental silo, and one end of each capillary pressure measuring pipe is communicated with the simulated stratum sample through the experimental silo; and the plurality of pressure sensors are arranged at intervals along the capillary piezometric tube so as to test the osmotic pressure of different positions of the capillary piezometric tube. Laboratory simulation can be carried out on the process of repairing the polluted stratum by the repairing liquid.

The present application relates to the technical field of environmental pollution remediation, and particularly relates to a garbage landfill coupled with contaminated soil remote remediation system and method. The method comprises the following steps: deep layer sampling and soil sample characteristic classification are performed on the remote remediation contaminated soil heap to obtain remote remediation soil samples corresponding to different pollution types; purified biogas is used as a heat source to perform organic pollution desorption and conversion and solidification and stabilization coupled remediation, and a solidification and stabilization remediated heavy metal-containing soil sample is generated; chemical environmental impact assessment analysis and cyclic remediation treatment are performed on the solidification and stabilization remediated heavy metal-containing soil sample to generate a soil sample after organic pollution and heavy metal remediation; fly ash landfill reuse is performed on the soil sample after organic pollution and heavy metal remediation to generate a remote fly ash landfill reuse soil after remediation. The present application can combine garbage landfill resources and remote contaminated soil remediation to realize corresponding soil cyclic reuse.

The invention relates to the field of soil pollution remediation, and discloses a remediation device for soil heavy metal pollution remediation and a using method thereof.The remediation device for soil heavy metal pollution remediation comprises an acid mist absorption tower which is arranged on the top face of the ground; a purifying assembly, a crushing assembly, a screening assembly, a humidifying assembly, a transferring assembly, a stirring assembly and a protecting assembly are arranged on the ground. According to the remediation method for soil heavy metal pollution remediation, pollution in soil is effectively detoxified through screening and crushing, reduction reaction, deacidification, neutralization reaction, dehydration and re-burying, the original pollution in a soil leachate is larger than or equal to 2000 mg / kg, the total chromium content is larger than or equal to 10000 mg / kg and is reduced to be smaller than or equal to 3 mg / L, the total chromium content is smaller than or equal to 9 mg / L, Ni is smaller than or equal to 50 mg / L, meanwhile, the pH ranges from 6 to 9, and the remediation effect is good. And acid mist generated in the reduction reaction process can be pumped into the acid mist absorption tower by the anti-corrosion induced draft fan, is neutralized by alkali in the acid mist absorption tower, and is discharged after reaching the discharge standard through the discharge pipe.

The invention belongs to the technical field of environmental functional materials and pollution remediation, and particularly relates to a universal method for preparing a magnetic adsorbent based on physical blending. The method comprises the following steps: mixing magnetic colloid particles and non-magnetic colloid particles in a solution, adding salt to adjust electrolyte concentration to induce colloid coagulation, uniformly mixing the particles by ultrasonic or vortex, standing, and collecting the obtained magnetic adsorbent by using an external magnetic field. The mechanism is characterized in that the interaction between particles is based on the colloid coagulation effect of the DLVO theory, and the relative magnitude of electrostatic repulsive force and Van der Waals attractive force is regulated and controlled by regulating and controlling the salt concentration, so that colloid coagulation is driven, and the magnetic adsorbent is formed. Complex chemical modification or high-temperature treatment is not needed, the original structure, adsorption performance and extraction performance of the adsorbent can be reserved, and the adsorbent is endowed with magnetic separation performance. Meanwhile, the method has the advantages of simplicity and convenience in operation, low cost, high universality and the like, and has a wide application prospect in the field of large-scale preparation of magnetic adsorbents.

The application discloses an L-cysteine-based soil lead pollution leaching agent and a preparation method thereof, and belongs to the technical field of soil heavy metal pollution remediation. The L-cysteine-based soil lead pollution leaching agent comprises the following raw materials: an L-cysteine solution, a pH buffer and a polyvinylpyrrolidone solution; the concentration of the L-cysteine solution is 0.3-0.5 mmol / L, the concentration of the pH buffer is 1 mmol / L, and the mass fraction of the polyvinylpyrrolidone solution is 0.003%-0.005%; the volume ratio of the L-cysteine solution, the pH buffer and the polyvinylpyrrolidone solution is 1:1:0.15-0.4. The leaching agent has a remarkable leaching effect on soil lead, and the removal rate of the leaching agent on the contaminated soil with a Pb content of more than 500 mg / kg can reach more than 85%, so that the leaching agent can effectively prevent lead from migrating through the soil into a food chain or a water environment, and is much stronger than a traditional carboxyl-based leaching agent.

The invention relates to the technical field of soil pollution remediation, and particularly discloses a mineralization stable remediation method for soil heavy metal pollution. The remediation method strictly follows the principle of ecological compatibility of soil, in-situ remediation of farmland soil heavy metal pollution is achieved, and meanwhile the soil fertility can be effectively improved; the construction of a remediation system can be completed by virtue of soil-flora optimization proportion and formation of carbon-based compound bacteria with biochar, and by virtue of the carbon-based compound bacteria, pollution of heavy metals such as arsenic and cadmium in contaminated soil can be well remedied, and the content of organic matters in the soil can be remarkably increased, so that the soil fertility of the soil is improved; the remediation method provided by the invention has both ecological safety and wide applicability, provides a feasible solution for green and sustainable treatment of large-area moderate-light heavy metal polluted farmland, and can be popularized to field soil for application.

The invention belongs to the technical field of agricultural equipment, and relates to a crushing and pesticide mixing device for soil pollution remediation, which comprises a movable frame, a connecting seat, two mounting plates, a crushing mechanism, a fixed shaft, an avoiding groove, a plurality of pesticide feeding holes, a transmission cylinder, a plurality of groups of spray pipes, a plurality of spray holes and a pesticide feeding mechanism, and the rotating mechanism is used for driving the transmission cylinder to drive the multiple sets of spraying pipes to rotate, liquid medicine is fed into soil of different depths, and meanwhile the soil is stirred. The crushing mechanism is arranged at the front end of the movable vehicle frame, the pesticide spraying mechanism composed of the fixed shaft, the transmission cylinder and the multiple sets of spraying pipes is arranged at the front end of the movable vehicle frame, soil crushing and pesticide spraying can be conducted firstly, the multiple sets of spraying pipes are driven to rotate through the rotating mechanism, liquid pesticide is fed into soil of different depths, and meanwhile the soil is stirred; and the soil and the medicine can be mixed more uniformly, different medicine concentrations in the soil with different depths are avoided, soil remediation is accelerated, and the soil remediation effect is improved.

The utility model discloses a soil pollution abatement device based on microbial remediation technology, comprising: a main body unit comprising a work box and a conveying assembly, the work box is symmetrically provided with a rectangular opening and two connecting ports, the conveying assembly penetrates through the two connecting ports, and the conveying assembly is provided with a placing groove body; and the repairing unit comprises a liquid storage box, a connecting box and a mounting frame, and the liquid storage box is fixedly mounted on the upper end face of the working box. The harrow rod teeth are inserted into soil in the containing groove body, repairing liquid medicine is discharged from the liquid outlet holes, the gear motor is started, the output end of the gear motor drives the threaded rod to rotate, the threaded rod drives the moving rod to move through the threaded sleeve, the moving rod drives the mounting frame and the harrow rod teeth to move, and therefore the harrow rod teeth can turn over the soil in the containing groove body; and therefore, the remediation liquid medicine can be sprayed on the soil at the lower end, and the remediation effect on microorganisms in the soil is improved.

The invention relates to the technical field of environmental remediation, discloses a soil heavy metal pollution remediation method based on a nano material, and is particularly suitable for remediation of soil polluted by heavy metals such as copper, lead and cadmium. According to the method, the nano material is uniformly added into the polluted soil, and heavy metal ions in the soil are adsorbed or reduced to be in a low-toxicity or non-toxic form by utilizing the high specific surface area and strong adsorbability of the nano material, so that the heavy metal concentration in the soil is effectively reduced. In the repairing process, the stability and the adsorption capacity of the nanometer material can be improved through surface modification, and the repairing effect is enhanced. By adjusting the humidity, pH value and other parameters of the soil, the remediation conditions are optimized, and the remediation efficiency is improved. The method has the advantages of being high in remediation speed, low in cost, environmentally friendly and the like, is particularly suitable for rapid treatment of large-area heavy metal contaminated soil, can remarkably reduce mobility and bioavailability of heavy metal in the soil and avoid the problem of secondary pollution, and has wide application prospects.

The invention relates to the technical field of soil pollution remediation, in particular to an underground water pollution remediation system which comprises a platform, a well body, a liquid storage tank, a liquid drainage pipe, a liquid pump, a detection mechanism and a protection mechanism, the well body, the liquid storage tank, the liquid drainage pipe, the liquid pump and the detection mechanism are connected to the platform, and the bottom of the well body is arranged below the platform; the top of the liquid discharge pipe is connected with the bottom of the liquid storage tank, the liquid discharge pipe is connected with the output end of the liquid pump, the other end of the liquid discharge pipe is connected with the protection mechanism, the protection mechanism is arranged in the well body, and the device is provided with the detection mechanism to detect and determine components of pollutants. The agent can be smoothly and accurately injected into the bottom layer so that pollution in underground water can be accurately eliminated, the working efficiency of the remediation system is improved, and agent waste is reduced.

The invention belongs to the technical field of soil heavy metal pollution remediation, and discloses an acid soil cadmium-reducing modifier, a preparation method, a use method and application, the modifier is formed by mixing sulfydryl minerals, biochar and a compound organic fertilizer according to a certain configuration, the sulfydryl mineral is prepared from calcium carbonate, bentonite and 3-mercaptopropyl triethoxy silane. When the soil conditioner is used, the soil conditioner is uniformly applied to a soil plough layer by 0-20 cm manually or mechanically, and the applied soil conditioner accounts for 1-5% of the mass of soil or is 180-220 kg / mu. The soil cadmium-reducing modifier can obviously reduce the effective state content of heavy metal cadmium in the soil, so that the cadmium content in planted rice grains is obviously reduced, the organic matter content of the soil is obviously increased, the ecological environment of polluted farmland soil is improved, the growth of the rice is promoted, and the yield of the rice is increased. The soil conditioner disclosed by the invention is simple to prepare and environment-friendly to soil, and safe utilization of cadmium-polluted farmland soil can be realized.

The present disclosure provides a soil pollution remediation control method, system, medium and computer program product, the method comprising: obtaining initial soil pollution data of an actual contaminated site to obtain a corresponding target remediation scheme; the target remediation scheme comprises a plurality of sub-remediation schemes, each sub-remediation scheme comprising at least one remediation technology; obtaining a target mapping model matched with the sub-remediation scheme; generating a remediation control instruction corresponding to the sub-remediation scheme based on the target mapping model, and determining a matched remediation device; issuing the remediation control instruction to the matched remediation device to perform corresponding remediation operations. The present disclosure can remotely control the on-site device based on the platform, and can also dynamically monitor the soil changes and device states during the remediation process in real time, so as to timely and adaptively make targeted remediation adjustments to ensure the accuracy and timeliness of the remediation control, improve the remediation quality and efficiency of the soil, and achieve the effect of intelligent operation construction.