113 results about "Phytoremediation" patented technology

The invention discloses a factory soil and groundwater pollution risk management and control method. The method comprises the following steps: acquiring a factory data set at a current moment and a historical moment; establishing a risk prediction model based on the factory data set; dividing risk grade distribution in the factory based on the risk prediction model and repairing the risk grade distribution; for the high-risk area, in-situ chemical oxidation and a permeable reactive barrier are adopted for repairing; phytoremediation or microbial remediation is adopted for medium risk areas; a low-risk area does not need to be repaired; the method can accurately predict the risk grade distribution in the factory according to the geological parameters, pollutant monitoring data and environmental dynamics of the factory, realizes risk grading output by constructing a risk prediction model fusing a physical mechanism and machine learning advantages, improves the accuracy and repair efficiency of risk assessment, and improves the risk assessment efficiency. And the pertinence, the economical efficiency and the environmental benefits of pollution control are remarkably improved.

The invention relates to the technical field of tailing sand treatment, in particular to a method for repairing vanadium titano-magnetite tailing sand by utilizing plants, which comprises the following steps: ploughing and flattening the surface layer of the tailing sand, then applying an organic modifier and a pH regulator, and fully mixing with the tailing sand of 20-40cm on the surface layer; synchronously applying a microbial agent containing heteroform rhizopus in the plant growth substrate, and sowing bermuda grass; performing field management after the cynodon dactylon seedlings survive; after at least one complete growth cycle of the cynodon dactylon is completed and the cynodon dactylon enters a mature period, stubbles of 5-10 cm are reserved by using a harvesting machine for cradling so as to ensure that the cynodon dactylon keeps necessary growing points, so that the cynodon dactylon can be quickly regenerated in the next growing season, and then the cradled cynodon dactylon is treated. The phytoremediation efficiency of the vanadium titano-magnetite tailing sand can be improved, and ecological restoration, resource circulation and environmental safety are also considered.

The invention discloses an ecological treatment and resource utilization method for lake polluted bottom mud, and belongs to the technical field of environmental governance and resource recycling. The method comprises the following steps: S1, bottom mud collection and pretreatment; s2, microbial enhanced remediation; s3, phytoremediation synergistic effect; and S4, carrying out post-treatment and recycling on the bottom mud. According to the method, an ecological treatment means is adopted in the whole process, the synergistic effect of microorganisms and plants is utilized, large-scale use of chemical agents is avoided, and the risk of secondary pollution is reduced; through multi-stage treatment of microbial enhanced remediation and phytoremediation, the obvious removal effect on organic pollutants, heavy metals and nutrient substances is achieved; original waste polluted bottom mud is converted into practical products such as building materials and soil amendments, so that the treatment cost of the bottom mud is reduced, and economic added values are created; the process parameters can be flexibly adjusted according to different lake pollution types, degrees and peripheral requirements, and the method is suitable for bottom mud treatment and resource recovery of lakes with various scales and various functions.

The invention discloses a tree species screening method for heavy metal lead contaminated soil remediation, and relates to the technical field of heavy metal lead contaminated ecological management. Common greening tree species such as cinnamomum camphora, willow, gingko, koelreuteria paniculata, photinia serrulata and osmanthus fragrans are selected, leaf and rhizosphere soil are collected in a point distribution mode, and the content of heavy metal Pb in a sample is measured; the heavy metal Pb content distribution characteristics of different tree species are quantified, the heavy metal Pb enrichment capacity difference of the greening tree species is explored, the heavy metal Pb enrichment and transfer efficiency of the greening tree species is comprehensively evaluated, and the greening tree species with the best heavy metal Pb purification effect is screened out. The method is a phytoremediation technology which has the advantages of being economical, simple, convenient, high in recognition degree, long in life cycle, free of damage to the soil structure, not prone to causing secondary pollution and the like.

The present invention discloses Sesbania cannabina Nramp5 genes and their applications in hyperaccumulating cadmium, belonging to the technical field of genetic engineering. The present invention clones the Sesbania cannabina ScNramp5 gene for the first time. By expressing the ScNramp5 gene in yeast, it is preliminarily determined that Sesbania cannabina ScNramp5 has the ability to transport, absorb and accumulate cadmium. Further, after overexpressing the ScNramp5 gene in rice, it is found that the cadmium content in the roots of the overexpressed ScNramp5 rice is significantly higher than that of the wild type, while the change in the cadmium content in the above-ground part is not obvious. This result indicates that ScNramp5 can efficiently accumulate cadmium and only efficiently accumulates cadmium in the roots. It provides an important theoretical basis and gene resources for using phytoremediation of cadmium-polluted soil and improving the cadmium tolerance of crops.

The invention discloses a lake water ecological restoration monitoring method based on big data, and relates to the technical field of submerged plant monitoring, and the method comprises the following steps: collecting original water quality data of a to-be-restored lake area before the to-be-restored lake area is restored by using submerged plants, and collecting initial water quality data of the to-be-restored lake area after the to-be-restored lake area is restored by using the submerged plants; carrying out correlation analysis treatment to obtain related water quality physicochemical indexes; collecting water quality physicochemical data of related water quality physicochemical indexes of the lake area to be restored, and performing water quality physicochemical change analysis to obtain plant related change data; monitoring and analyzing the submerged plants in the lake area to be restored based on the related change data of the plants to obtain related change information of the submerged plants; the method is used for solving the problem that the development condition of submerged plants cannot be accurately obtained through water body parameters on the premise of not damaging the submerged plants when the submerged plants are monitored at the initial stage of repairing lake water ecology by using the submerged plants in the existing submerged plant monitoring technology.

The invention provides a data processing method and system for tailing pond phytoremediation, and relates to the field of data processing, and the method comprises the steps: obtaining a plurality of historical tailing pond phytoremediation cases; based on a plurality of historical tailing pond phytoremediation cases, a multi-dimensional remediation factor set is determined, and the multi-dimensional remediation factor set comprises a target tailing component factor, a target soil state factor and a target meteorological factor; based on the multi-dimensional repair factor set, collecting repair auxiliary features of the to-be-repaired tailings pond; searching a reference historical tailing pond phytoremediation case from a plurality of historical tailing pond phytoremediation cases based on the remediation auxiliary features of the to-be-remedied tailing pond; based on the reference historical tailing pond phytoremediation case, determining a phytoremediation strategy of the to-be-remedied tailing pond; in the process of executing the phytoremediation strategy of the to-be-remedied tailings pond, the real-time remediation data of the to-be-remedied tailings pond is collected, remediation effect evaluation is conducted, and the method has the advantage that the efficiency and reliability of phytoremediation of the tailings pond are improved.

The invention provides application of an arabidopsis thaliana CPK12 gene in improvement of lead stress resistance of plants. The nucleotide sequence of the arabidopsis thaliana CPK12 gene is as shown in SEQ ID NO.1, and the CDS sequence of the arabidopsis thaliana CPK12 gene is as shown in SEQ ID NO.3. The invention also provides application of the arabidopsis thaliana CPK12 gene in improvement of lead stress resistance of the plants. The arabidopsis thaliana CPK12 gene is used for negative regulation of the lead stress tolerance of plants. According to the application, an arabidopsis thaliana CPK12 gene is adopted as a negative regulatory factor to participate in a new function of responding to lead stress of a plant, an RNA interference vector RNAi targeting the arabidopsis thaliana CPK12 gene is constructed and is transformed into wild-type arabidopsis thaliana by utilizing a genetic engineering technology, and a homozygous transgenic line with a silent CPK12 gene expression is obtained through resistance screening. Experiments prove that the resistance of a transgenic line to lead stress is remarkably enhanced, which indicates that the CPK12 gene plays a negative regulation role in a plant lead stress response pathway. The invention provides a new molecular target for regulating and controlling the heavy metal stress resistance of plants by using the CPK12 gene, and has important application value in the field of phytoremediation of heavy metal contaminated soil and in the aspect of molecular breeding of lead-resistant crop varieties.

The invention relates to the technical field of phytoremediation of soil polluted by organophosphate flame retardants / plasticizers, in particular to a method for remedying soil polluted by chlorinated organophosphate by using compositae plant jerusalem artichoke. The compositae plant jerusalem artichoke is planted in the soil polluted by the chlorinated organophosphate, and the plant degrades, removes or remarkably reduces the content of phosphate tri (2-chloroethyl) ester, phosphate tri (1-chloro-2-propyl) ester and phosphate tri (1, 1-dichloro-2-propyl) ester in the soil through the synergistic effect of absorption and root system secreted substances in the growth process. And the content of chlorinated organophosphorus esters such as 2, 3-dichloro-2-propyl) ester and the like is increased. According to the method, the energy plant jerusalem artichoke capable of being used for producing bioethanol or methane is adopted for repairing the soil polluted by the chlorinated organophosphate, the method has the advantages of being small in investment, not high in technical requirement, capable of being used for in-situ repairing and the like, and the situation that the chlorinated organophosphate in the soil enters a food chain through plants and then harms human health can be avoided; meanwhile, raw materials can be provided for production of biological energy.

The application discloses a kind of factory area soil and groundwater pollution risk control method, comprising: obtaining current time and historical time under factory area dataset;Based on the factory area dataset, establish risk prediction model;Based on risk prediction model, the risk level distribution in factory area is divided and repaired;For high-risk area, in-situ chemical oxidation and permeation reaction wall are used for repair;For medium-risk area, plant repair or microbial repair is used;Low-risk area does not need to be repaired;The method of the present application can accurately predict the risk level distribution in the factory area according to the geological parameters of the factory area, the pollution monitoring data and the environmental dynamics, by constructing a risk prediction model that integrates the physical mechanism and the advantages of machine learning, the risk classification output is realized, the accuracy of risk assessment and the repair efficiency are improved, and the pertinence, economy and environmental benefits of pollution control are significantly improved.

This invention discloses a method for improving saline-alkali land in semi-arid regions to enhance plant diversity, comprising the following steps: S1, construction of treatment units; S2, arrangement of treatment units; S3, preliminary soil treatment; S4, planting of plants; and S5, intensive soil treatment. This invention addresses the problems of high salinity and species scarcity in saline-alkali land in semi-arid regions, providing a complete treatment method. By deploying multiple treatment units to form a treatment system, combined with the soil conditioner specifically designed for this invention, the high salinity of saline-alkali soil in semi-arid regions can be alleviated. Simultaneously, by incorporating a phytoremediation system primarily composed of alkali plantations, the biodiversity of exposed saline-alkali land in semi-arid regions can be effectively enhanced. Furthermore, considering seasonal factors and other factors such as rainfall, a one-year treatment plan is ultimately developed. After treatment, the land can be selectively developed into ornamental wetlands or agricultural land, possessing significant economic value.

The invention provides a method for improving phytoremediation of heavy metal cadmium / lead contaminated soil by using beta-cyclodextrin, and belongs to the technical field of heavy metal contaminated soil remediation. The method comprises the following steps: applying beta-cyclodextrin into the heavy metal cadmium / lead polluted soil, carrying out soil flooding treatment, and planting cadmium / lead tolerant and enriched plants; the application amount of the beta-cyclodextrin is 5-25 g / m < 2 >. According to the method, the enrichment capacity of plants to cadmium / lead is remarkably improved through beta-cyclodextrin, and test data shows that after beta-cyclodextrin is applied, the cadmium content of the roots, stems and leaves of amaranthus hypochondriacus is remarkably improved compared with that of a blank group, the repair period is greatly shortened, and the defect that traditional plant repair efficiency is low is overcome. The method has the advantages of being green, safe, easy to operate, quick in effect taking and high in practicability.

The invention discloses a slow-release activating agent for strengthening phytoremediation of heavy metal contaminated soil and a preparation method of the slow-release activating agent, and belongs to the technical field of heavy metal contaminated soil remediation. The method comprises the following steps: by taking sodium alginate as a carrier, embedding a biodegradable chelating agent glutamic acid tetrasodium diacetate (GLDA), and carrying out Fe < 3 + > gradient cross-linking and ethanol phase separation treatment, so as to construct the microsphere slow-release agent with a hierarchical porous structure with a compact outer layer and a loose inner layer. The microsphere slow-release agent prepared by the invention can realize intelligent slow release of GLDA, avoids initial burst release, reduces the risk of heavy metal leaching, improves the absorption efficiency of plants to heavy metals, has a remarkable repair effect, and has good environmental adaptability and popularization and application prospects.

The invention belongs to the technical field of environmental restoration, and particularly relates to cyclodextrin cross-linked supramolecular hydrogel as well as a preparation method and application thereof. A construction unit of the supramolecular hydrogel comprises double-bond modified beta-cyclodextrin and acrylic acid interacting with the double-bond modified beta-cyclodextrin through a covalent bond; plant hormones are included in a cavity of the double-bond modified beta-cyclodextrin. The supramolecular hydrogel adhesive tape is provided with charges and cavities, can include plant hormones, and can be used together with soil improvement plants such as green manure to enhance the saline-alkali soil improvement effect by regulating and controlling the salinity of plant rhizosphere soil, improving the emergence rate, promoting plant growth and improving the environmental stress resistance of the plants. Cavities of the double-bond modified beta-cyclodextrin can effectively include plant hormones, and the supramolecular hydrogel is formed through covalent interaction between the acrylic acid and the double-bond modified beta-cyclodextrin. Based on multi-covalent and non-covalent interaction, the supramolecular hydrogel has the advantage of controllably releasing plant hormones, and realizes sustainable environmental remediation by cooperating with plant remediation.

The invention discloses a preparation method and application of a bionic targeted three-dimensional porous cellulose microsphere heavy metal stabilizing agent, and the preparation method comprises the following steps: firstly, reacting ferric chloride hexahydrate with tannic acid to prepare TA-Fe; then, sodium carboxymethyl cellulose and TA-Fe are used as raw materials, and under the crosslinking action of aluminum nitrate, three-dimensional porous cellulose microspheres TA-Fe coated CMC with a metal-phenolic aldehyde network structure are prepared; and adding 4-(4, 6-dimethoxytriazine-2-yl)-4-methylmorpholine hydrochloride and aspartic acid, carrying out a stirring reaction, washing with deionized water, and carrying out freeze drying to obtain the final product. The preparation method is simple and convenient, the reaction condition is mild, and the raw material cellulose is green, environment-friendly and wide in source. The obtained stabilizing agent can efficiently, rapidly and selectively adsorb Pb, effectively reduces the bioavailability of Pb in soil, weakens the toxicity of Pb to plants, and can achieve a synergistic effect with a phytoremediation technology.

The pantoea agglomerans SE16 is classified and named as pantoea agglomerans, and is preserved in the China General Microbiological Culture Collection Center on October 17, 2024, the address is Institute of Microbiology, Chinese Academy of Sciences, No.3, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No. 32246. The bacterial strain is applied to strengthening phytoremediation of heavy metal pollution, improving soil nutrients, promoting plant growth and strengthening phytoremediation of pollutants. The strain has the functions of dissolving phosphorus, fixing nitrogen, producing iron carriers, producing indoleacetic acid, ACC deaminase and cellulase, resisting acid, resisting salt and the like, and also can tolerate various heavy metals, polycyclic aromatic hydrocarbons and combined pollution of the heavy metals and the polycyclic aromatic hydrocarbons; by promoting the growth of the sudangrass, improving the photosynthesis of the sudangrass, relieving the oxidation pressure of the sudangrass and changing the composition of soil microbial communities, the toxicity of chromium to the sudangrass is relieved, and the method has practical popularization and application values.

This invention discloses a method for enhancing the cadmium accumulation and translocation capacity of *Sedum aizoon*, relating to the field of phytoremediation of heavy metal pollution. The invention includes the following steps: adding a 5 μM selenium ion concentration solution to a cadmium-polluted water environment; planting *Sedum aizoon* seedlings in the cadmium-polluted water environment for cultivation management; plant pretreatment: after culturing *Sedum aizoon* seedlings in unpolluted soil for at least three generations, selecting uniformly sized and healthy *Sedum aizoon* plants for pre-culturing in Hoaglands nutrient solution for two weeks to induce rooting; hydroponic treatment: transferring healthy plants to Hoaglands nutrient solution containing selenium for cultivation, and harvesting the plants after 28 days. This invention, by simulating a high-concentration cadmium-polluted water environment and applying selenium during the growth period of *Sedum aizoon*, promotes the absorption and accumulation of cadmium by *Sedum aizoon*, increases plant biomass, alleviates the toxic effects of cadmium on plants, and achieves efficient remediation of cadmium-polluted environments by *Sedum aizoon*.

The application provides application of a wild pea in repairing radium-polluted soil, and the wild pea is planted in radium-polluted soil for cultivation and management, when the wild pea grows to a mature stage, the aboveground part of the wild pea is removed from the polluted soil, or the wild pea is completely removed from the polluted soil; the above process is repeated until the radium content in the soil reaches an environmental safety standard. The wild pea is used to repair acidic radium-polluted soil in a subtropical monsoon climate zone, the wild pea grows normally in the acidic soil with low-level radioactive pollution and has no toxic and harmful phenomena. The wild pea at the mature stage has a high transfer coefficient and enrichment coefficient, the total radium removal amount of the aboveground part of the wild pea accounts for more than 80% of the total radium removal amount, and radium can be extracted from the low-level radium-polluted soil. The plant repair method provided by the application has simple operation process and convenient management, does not damage the basic structure and properties of the soil, and is suitable for repairing large-area acidic radium-polluted soil with low level.

The present application relates to a kind of mine ecological environment multilevel repair system and method, including intercepting and draining assembly, water storage assembly, drip irrigation assembly, flow assembly, intercepting and draining assembly is used to prevent soil loss and carry out large-scale water storage, water storage assembly is used to form multiple gradient water storage cavities in waterway.The repair system is repaired to ecological environment by intercepting, water storage, plant repair and other multilevel repair means, intercepting can effectively prevent the surface layer of dump site from losing a large number of guest soil, and water storage range is larger, except a small number of areas, most of the rainwater of entire dump site flows into waterway, water storage can be continuously drip irrigation to slope, effectively solve the problem that the slope water storage capacity is poor and then leads to low vegetation survival rate, also by setting first buoyancy part, when rainfall is large, make the water baffle rise, flow out narrow gap at the bottom of water baffle, so that water flow increases in narrow gap, effectively dredge.

This invention relates to the field of soil pollution control technology, specifically to a microbial-phytoremediation method for heavy metal contaminated soil in mining waste sites. It includes a supporting base layer, on which a leachate collection layer, a heavy metal passivation and isolation layer, a microbial reinforcement layer, and a plant growth layer are sequentially arranged. This invention organically integrates multi-layered structural units to form a spatially ordered structure of leachate drainage—heavy metal passivation—microbial loading—plant growth. It employs immobilized functional microbial agents and embeds multi-parameter sensing devices to establish a monitoring-feedback-control closed-loop system. Simultaneously, hyperaccumulating plants are planted and inoculated with arbuscular mycorrhizal fungi, achieving a shift from an open-loop passive mode to a closed-loop active collaborative mode, avoiding problems such as delayed remediation response, poor synergy, and insufficient long-term stability.

The invention discloses a simulation test system and a simulation test method for a process of phytoremediation of chlorinated hydrocarbon pollutants, the simulation test system comprises a plant experiment box, a water supply system, a monitoring assembly, a liquid recovery bottle and an imaging system, the water supply system, the plant experiment box and the liquid recovery bottle are sequentially connected in series through a hose; the imaging system consists of a lighting lamp box, a camera and a computer; the plant experiment box is used as a main body, so that the influence of plants on the distribution of pollutants in a porous medium in different growth environments can be flexibly simulated, and the change of physicochemical property parameters around a root system can be monitored in real time; by tracking the change of the distribution condition of pollutants in a two-dimensional system, the pollutant removal process of phytoremediation is studied, and the removal effect and action mechanism of different plant growth regulation and control technologies, solubilization strengthening technologies and the like on organic pollutants of plants in a simulated porous medium are verified.

The invention belongs to the technical field of agricultural biology, relates to application of a protein OsSRP with an amino acid sequence as shown in SEQ ID NO: 1 in control of Cd accumulation of crop grains, and has important significance in phytoremediation and cultivation of low-cadmium rice varieties.

The invention provides a method for enhancing phytoremediation of cadmium-contaminated soil by using a degradable chelating agent, which comprises the following steps: selecting torch cockscomb seedlings with relatively strong enrichment capacity on cadmium metal, planting the seedlings into a cadmium-contaminated soil layer to be remedied, and spraying a special green degradable composite chelating agent for several times in a growth cycle, so that the cadmium-contaminated soil layer to be remedied is obtained. Therefore, activation and release of cadmium in the soil layer to be repaired are promoted, the extraction efficiency of the torch cockscombs on cadmium is enhanced, and meanwhile growth of the torch cockscombs is promoted. Compared with a chelating agent with a single component, the composite chelating agent with preferable components and content is sprayed into the cadmium-polluted soil, and the purification efficiency of the torch cockscomb on cadmium can be more effectively improved. Moreover, according to the method, the gravel layer, the coarse gravel mixing layer and the adsorption material layer are built below the cadmium-polluted soil layer to be repaired, so that cadmium pollutants are prevented from being migrated into underground water, and secondary pollution is avoided. The method is low in remediation cost, environmentally friendly and especially suitable for remediation of moderately and severely cadmium contaminated soil.

The invention discloses application of insects in accelerating heavy metal pollution purification of soil. According to the method, the heavy metal content in the soil where the broad beans are planted can be further reduced, the effect of accelerating heavy metal pollution remediation of the broad beans is achieved, and the method is a very promising mode for transferring or eliminating a certain pollutant. The method can be applied to a potential target of phytoremediation, and the remediation efficiency of the broad beans can be improved through inoculation of the pests; and a certain theoretical basis is provided for phytoremediation of heavy metal pollution.

The invention relates to the technical field of environmental science, in particular to a method for simulating emission of lake greenhouse gas by submerged plants at extreme high temperature and application of the method. According to the method, eel grass is used as submerged plants to restore different types of lake ecosystems (grass type lake ecosystems and algae type lake ecosystems), and the influence of the submerged plants on the different types of lake ecosystems under high temperature stress is researched. Finally, the grass type shallow lake with submerged plants as the main part is relatively stable in response to the extreme climate after being repaired by the submerged plant vallisneria natans, and the flux increase amplitude of greenhouse gases CO2 and CH4 of the system does not exceed 10%, or even may be reduced. And a basis is provided for restoration and improvement of a grass-type lake ecosystem.

The invention belongs to the technical field of water treatment, and discloses a plant coupling electrokinetic remediation and auxiliary agent in-situ treatment system for coastal shallow water type lake and reservoir bottom mud. Comprising a phytoremediation unit, an electrokinetic remediation unit, a feeding unit and an auxiliary unit. Through establishment of an aquatic plant-electrokinetic remediation-medicament-assisted bottom mud in-situ treatment technology integration system and a prediction model capable of guiding application of the technology integration system, an innovative solution which gives consideration to environmental protection, economical efficiency and applicability is provided for treatment of coastal shallow water type lake and reservoir bottom mud endogenous pollution.

A decontamination method for subsurface aquifers having per- and polyfluoroalkyl substances (PFAS) contaminants by injecting gas through a screened well or open tube through a porous media to form buoyant material where the PFAS contaminants accumulate on and / or in the buoyant material and rise to the water table or top of the aquifer with PFAS that desorbs from the buoyant material and concentrates in the shallow groundwater, and extracting or sequestering the groundwater near the water table or top of the confined aquifer and / or collecting the buoyant material for treatment. The method may include treatment of aquifer material consisting of gravel, sand, silt, clay, or fractured geologic media, or combination, and extraction through phytoremediation, groundwater extraction wells, wellpoint systems, or groundwater extraction trenches and include a seal and / or check valve near the water table in the trench to selectively permit water and buoyant material to flow upward.

The invention relates to a mine ecological environment multi-level restoration system and method, the system comprises a water interception and drainage assembly, a water storage assembly, a drip irrigation assembly and a circulation assembly, the water interception and drainage assembly is used for preventing water and soil loss and carrying out large-scale water storage, and the water storage assembly is used for forming a plurality of gradient water storage cavities in a water channel. According to the remediation system, the ecological environment is remedied through multi-layer remediation means such as closure, water storage and phytoremediation, closure can effectively prevent mass loss of surface soil dressing of the waste dump, the water storage range is large, most of rainwater of the whole waste dump except for a small number of areas flows into a water channel, water storage can conduct continuous drip irrigation on the side slope, and the ecological environment is restored. The problem that the survival rate of vegetation is low due to the poor water storage capacity of the side slope is effectively solved, and the first buoyancy part is arranged, so that when the rainfall is large, the water baffle rises, water flows out of the narrow gap at the bottom of the water baffle, the flow speed of water flow in the narrow gap is increased, and effective dredging is conducted.

The invention discloses a soil remediation method combining plants and a heavy metal composite treatment agent, and relates to the technical field of environmental remediation, according to the method, core-shell structure microcapsules with rhizosphere response release characteristics are adopted as the composite treatment agent, a shell layer is sulfydryl functionalized nano-hydroxyapatite, and rapid fixation of heavy metal is achieved; the inner shell layer is a PHBV controlled release layer and responds to degradation of plant root exudates; and the core is loaded with an EDDS chelating agent and a pH buffering agent which are selectively released at the rhizosphere to activate heavy metals. The technical problems that antagonism exists between existing chemical immobilization and phytoextraction technologies, and synergistic interaction is difficult are solved, the contradiction between chemical remediation and phytoremediation is overcome, safe, efficient and sustainable soil heavy metal synergistic remediation and space-time coupling of non-rhizosphere region heavy metal stabilization and rhizosphere micro-region efficient activation are achieved, and the soil heavy metal remediation effect is improved. The heavy metal absorption efficiency of the hyperaccumulator is obviously improved.

The present invention is directed to a phytoremediation system and related methods of forming and using such phytoremediation system. A phytoremediation system may include one or more plants, such as one or more trees, and one or more porous materials. The one or more porous materials may include a glass-based porous material. The one or more porous materials may include a biomolecular porous material.