17 results about "Soil restoration" patented technology

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.

The invention relates to a soil microorganism recovery index processing method and system and electronic equipment. The method comprises the following steps: collecting a soil sample in a gradient sample area, and measuring soil microbiological indexes and soil attributes; taking the soil microorganism indexes as a mother sequence, taking the soil attributes as subsequences, calculating correlation coefficients and correlation degrees between the subsequences and the mother sequence, and determining key soil attributes influencing soil microorganism recovery; determining a weight value of the key soil attribute; based on the numerical values of the key soil attributes in the original ecological reference area and the damaged unrepaired area, combining the weight values of the key soil attributes, and adopting an improved soil restoration index model to calculate and obtain a soil microorganism restoration index; the technical problem that in existing mining area ecological restoration evaluation, an original ecological system is not used as a benchmark, and the soil microorganism restoration degree cannot be quantitatively represented is solved, and the technical effect of achieving objective, comparable and quantifiable accurate evaluation of the soil ecological function restoration degree is achieved.

The invention discloses a desertified soil restoration method based on microorganism mineralization induction and moss-algae crust, which comprises the following steps: crushing soybeans, and dissolving the crushed soybeans in water to obtain a soybean urease crude extract; adding desert green algae and drought-enduring moss into the cementing liquid prepared from the travertine for later use; the algae crust cementing liquid is obtained; the method comprises the following steps: preparing a soybean urease crude extracting solution, uniformly mixing the soybean urease crude extracting solution with desertification soil needing to be recovered, adding a moss-algae crust cementing solution into the surface layer of the mixed desertification soil, and curing for a period of time to realize the solidification of the desertification soil and the moss-algae crust on the surface layer. On the basis of microorganism mineralization induced sand stabilization, the bryophyllum crust is further applied to the soil surface to enhance the compressive strength of the soil surface, so that the strength of the desertification soil can be effectively recovered, and meanwhile, the bryophyllum crust also enables the desertification soil to be covered by moss and algae again, and the nutrients and environment of the soil are recovered.

Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. FIG. 1 Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. Mixing and placing calcium oleate, sodium silicate, S10 polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 20 25 20 15 77 04 M ar 2 02 5 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 1 / 2 FIG. 1 FIG. 2 1 / 2 Mixing and placing calcium oleate, sodium silicate, S10polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 Inorganic nano-seed crystal Hydration products 5 um FIG. 2 20 25 20 15 77 04 M ar 2 02 5 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2

This invention discloses a method for the simultaneous remediation of pesticide and arsenic pollution in acidic soil, belonging to the field of soil remediation technology. *Pseudomonas arsenicoxydans* Y24-2 is used as the remediation microbial agent, and calcium peroxide is used as remediation agent A. Sodium acetate, urea, potassium dihydrogen phosphate, manganese salt, and ferrous salt are mixed to obtain remediation agent B. Remediation agents A and B must be stored separately and mixed immediately before remediation. Remediation agents A and B are dispersed in water, and the remediation microbial agent is added to obtain a remediation agent suspension. The remediation agent suspension is immediately applied to the acidic soil to be remediated for simultaneous remediation of pesticide and arsenic pollution. According to experiments, after remediation using the method provided by this invention, glyphosate in the soil is effectively degraded, arsenic is effectively oxidized and passivated, and the soil pH value is raised to neutral, achieving the goal of pollutant removal and soil restoration to health.

The invention discloses a geological water conservancy project environment ecological restoration device, and particularly relates to the technical field of soil remediation. By arranging a longitudinal soil drilling adjusting unit, when the restoration width is large, two limiting frames are away from each other at the same time and slide in a transfer frame in a limited mode, and then two guide frames descend synchronously; then the soil drilling rod is driven to slide downwards by a specific height along the limiting frame, drilling is conducted on soil at different depths, and hard soil is loosened; when the repairing width is small, the two limiting frames get close synchronously to drive the soil drilling rods in the limiting frames to get close, the drilling width is small, the pollution layer with the specific depth is treated through accurate drilling and screening, the unpolluted soil layer below is prevented from being damaged, meanwhile, the same drilling force is applied to soil at different points, the consistency of the soil loosening effect is guaranteed, and the repairing efficiency is improved. In this way, the physical boundary of drilling operation is delimited, it is ensured that the soil drilling rod does not exceed the preset repairing area, and interference on a non-target area is achieved.

The invention belongs to the technical field of environmental engineering and pollution ecological restoration, and particularly relates to a biochar-laccase hybrid nanofilm based on interface bonding, a preparation method and application in petroleum hydrocarbon pollution synergistic restoration and plant enhancement. The biochar-laccase hybrid nanofilm comprises biochar and a laccase-inorganic hybrid nanoflower-shaped film, and laccase protein molecules in the laccase-inorganic hybrid nanoflower-shaped film and functional groups on the surface of the biochar are subjected to interface bonding to generate a composite film structure. The immobilized laccase has an ultrahigh specific surface area far exceeding a theoretical addition value, realizes efficient and stable immobilization of laccase, and shows excellent catalytic activity and environmental stability. When applied to petroleum hydrocarbon contaminated soil, the soil remediation agent can strengthen remediation plants such as oilseed rape to efficiently remove petroleum hydrocarbon through biological and non-biological mechanisms, obviously promote plant growth, realize the crossing from single pollution removal to pollution treatment and ecological restoration collaboration, and provide an innovative solution for green and sustainable soil remediation.

The invention relates to the technical field of ecological restoration, in particular to an ecological restoration monitoring method and system for a coal mining subsidence area. Obtaining soil recovery state time sequence information; when the soil recovery state at the end point moment of the time sequence information of the soil recovery state meets a soil target state, the time sequence information of the soil recovery state and vegetation planting parameters are input into a vegetation recovery state prediction network, and the time sequence information of the vegetation recovery state is obtained, the vegetation recovery state prediction network is a black box model constructed based on a long-short term memory neural network; and when the vegetation recovery state at the end point moment of the vegetation recovery state time sequence information meets a vegetation target state, performing ecological recovery monitoring on the soil modification coal mining subsidence area executing the soil modification control parameters by taking the soil recovery state time sequence information and the vegetation recovery state time sequence information as monitoring baselines. According to the method, scientificity and effectiveness of cultivated land protection and ecological restoration of the coal mining subsidence area can be improved.

The invention belongs to the technical field of ecological restoration of alpine grassland, and particularly relates to an ecological planting method for shrub grassland in a super plateau semi-arid region. The method comprises the following steps: delimiting a sample plot in a to-be-restored super plateau semi-arid region degraded grassland area, and applying a bio-organic fertilizer and biochar for soil improvement and activation; ditching and soil preparation; after a water-retaining agent absorbs water and is prepared into gel, uniformly applying the gel into the sowing furrows and uniformly mixing the gel with furrow soil; and performing multi-species matching and sowing. According to the ecological planting method, a low-disturbance degraded shrub grassland remediation technology is adopted, a liquid mulching film is directly sprayed on the surface of soil on the basis of soil improvement, the effects of preventing wind, maintaining soil moisture and increasing ground temperature are achieved, the soil moisture condition and the moisture utilization rate can be obviously improved, soil remediation and vegetation planting are both considered, and the ecological planting effect is achieved. The multifunctionality of the ecological system of the shrub grassland is improved.

The invention discloses a karst region open pit coal mine surface soil stripping ditch filling land reclamation ecological reconstruction method, and relates to the technical field of ecological restoration, and the method comprises the following steps: adopting a three-layer backfill structure to carry out soil profile reconstruction, and calculating the addition amount of an acid-base restoration agent for soil with the pH value lower than a threshold value; according to the relationship between the soil bulk density and the ideal soil bulk density, the biochar addition amount for soil remediation is determined; constructing a heavy metal stability evaluation model to calculate a heavy metal stability index, and determining the dosage of a soil heavy metal pollution repairing agent; the slope stability is evaluated, and the slope ecological restoration safety coefficient and the vegetation configuration scheme are calculated in combination with the vegetation configuration diversity index; and constructing an improved moisture characteristic curve model to calculate the soil volume moisture content and formulate an irrigation plan. According to the method, soil improvement and ecological restoration are achieved through the steps of soil backfilling, restoration agent adding, vegetation configuration and precise irrigation, and scientificity and accuracy of the restoration process are ensured by building the model.

The invention discloses a rapid ecological restoration method suitable for continuous cropping obstacles of valeriana officinalis in a karst yellow soil area, and belongs to the technical field of ecological cultivation of traditional Chinese medicinal materials and soil restoration. According to the method, a sequential remediation strategy of first disinfection and then reconstruction is adopted for composite obstacles such as acid, sticky, thin and thin soil and microbial unbalance after continuous cropping of valeriana officinalis in the karst yellow soil area. Firstly, quick lime or metham is selected to disinfect soil, and the pathogen cardinal number is rapidly reduced; then, an ecological reconstruction composite material formed by compounding 20-30 parts of biochar, 40-50 parts of organic fertilizer, 15-25 parts of leguminous green manure fresh body or dry powder and 5-10 parts of a specific functional microbial agent is immediately applied, and full fusion of the ecological reconstruction composite material and the soil is achieved through uniform mixing. According to the method, through organic combination of disinfection and multi-material synergistic remediation, soil acidification improvement, nutrient improvement and microbial community reconstruction are synchronously achieved, and systematic and rapid ecological remediation of continuous cropping obstacles is achieved. The method has high efficiency, ecological friendliness and regional pertinence, and a systematic solution is provided for sustainable production of the traditional Chinese medicinal materials in the karst ecologically fragile region.

A mine ecological restoration soil improvement device and its use method belong to the field of soil restoration devices, and can solve the problem that, due to the reasons of extremely poor soil matrix pollution in mines, low organic matter content, low clay content and poor texture, the current mine soil pollution restoration technology sprays or injects an improvement agent into the surface soil layer for restoration, but the improvement agent diffused by the penetration effect cannot fully combine with the soil particles, and the partial activation of heavy metal elements can cause harm. The steps are: S1: the motor is powered on to drive the paddle to rotate; S2: the soil is poured into the feed port, and the paddle separates the soil; S3: the water pump is powered on to spray the soil restoration agent on the soil; S4: the motor is powered on to drive the sieve plate to rotate, and the hardened soil is crushed.

The utility model discloses and relates to the technical field of side slope vegetation soil fixation, in particular to a vegetation soil fixation device for ecological restoration of a forestry side slope, which comprises a slope vegetation protection component, a water flow supply component is mounted on the slope vegetation protection component, and a plurality of vegetation soil restoration parts for restoring side slope vegetation are connected onto the slope vegetation protection component in a clamping manner. The interior of the vegetation soil remediation part is filled with seeds and nutrient soil; according to the device, through combination of the slope vegetation protection assembly and the vegetation soil remediation part, damaged slopes of different areas can be accurately covered, rapid splicing is achieved through the unique design of the positioning insertion blocks and the notches, and the double-layer structure of the steel wire mesh and the outer frame can protect existing vegetation and stabilize new roots. According to the device, a graded fixing system is adopted, the connecting assembly is matched with the slope inserting rods to form a three-dimensional stable structure through double anchoring of the main inserting rods and the extending inserting rods, and stability can still be kept even under the soft soil condition.

The invention provides a shrub and grass combined planting method suitable for soil of a strip mine dump and application of the shrub and grass combined planting method, and relates to the technical field of ecological remediation, the shrub and grass combined planting method comprises the steps of planting amorpha fruticosa in a to-be-improved soil area, and sowing alfalfa in gaps of the amorpha fruticosa; the arbuscular mycorrhizal fungi inoculant and the dark-color separated endophytic fungi inoculant are applied to the root of each amorpha fruticosa plant in a hole application mode, and the arbuscular mycorrhizal fungi inoculant and the dark-color separated endophytic fungi inoculant are applied in planting gaps of the amorpha fruticosa plant by digging shallow ditches. The long-term stable symbiosis of the two fungi at the rhizosphere is realized. The photosynthetic rate and the CO2 quantum efficiency of the amorpha fruticosa and the alfalfa are remarkably improved, and the obvious synergistic interaction effect is achieved in the aspects of improving the soil nutrient components and the activity of soil enzymes such as sucrase and phosphatase. The technical problems that in the prior art, the AMF and the DSE have ecological niche competition, the coexistence stability is poor and inoculation balance is difficult to control in the process of improving the soil of the strip mine dumping site, and consequently soil remediation is difficult are solved.

The utility model provides a soil conservation device for ecological restoration, and relates to the field of soil restoration. A soil conservation device for ecological restoration comprises a traction frame used for fixing, a plough is arranged above the traction frame, a bulldozing plate is fixedly installed behind the traction frame, a material sliding pipe is fixedly installed above the traction frame, the outlet end of the material sliding pipe is located behind the plough, the material sliding pipe is divided into two sections, one section is obliquely arranged above the plough, and the other section is obliquely arranged above the plough. The two sections of material sliding pipes are communicated, the number of the ploughs is multiple, the multiple ploughs are fixedly installed above the traction frame at equal intervals, and the gap between every two adjacent ploughs is larger than the width of the corresponding plough. According to the soil conservation device for ecological restoration, soil is broken open through a plough, then conservation fertilizer is dispersed in ditches through a material sliding pipe, the conservation fertilizer is covered in time through a bulldozing plate on the rear portion, and therefore the problem that the conservation fertilizer is blown away by wind in the throwing process can be avoided.

The present application belongs to the field of ecological restoration technology, and particularly relates to a high-efficiency mixing device for soil restoration agent, which comprises a vehicle body, a rotary tillage device located at the front end of the vehicle body in the direction of travel, the rotary tillage device being connected with the vehicle body and used for soil crushing, a soil shoveling device, the feeding end of which is communicated with the discharging end of the rotary tillage device, the soil shoveling device being connected with the vehicle body, a conveying belt assembly, the feeding end of which is communicated with the discharging end of the soil shoveling device, the conveying belt assembly being used for soil conveying and having one end connected with the soil shoveling device, a soil restoration agent mixing device, the feeding end of which is communicated with the discharging end of the conveying belt assembly, the other end of the conveying belt assembly being connected with the soil restoration agent mixing device, the soil restoration agent mixing device being used for uniformly mixing soil and restoration agent, and a spreading device, the feeding end of which is communicated with the discharging end of the soil restoration agent mixing device, the spreading device being connected with the vehicle body and having a discharging end facing the ground surface and being used for spreading the soil mixed with the restoration agent on the ground surface.

The invention relates to the field of ecological restoration, and discloses a plateau muddy carbon land degraded soil restoration method based on water and soil coordinated regulation, which comprises the following steps: S1, region division and matrix layered reconstruction: carrying out topographic and hydrological surveying and mapping on a target restoration region, and dividing a hydrodynamic function unit, a hydraulic adjusting layer, an ion exchange layer, a micro-ecological composite layer and a surface vegetation layer are sequentially laid from bottom to top; s3, ion exchange layer redox regulation and control; and S4, activating the compound microbial community and reconstructing the carbon flux. Through regional division and matrix layered reconstruction, reasonable layout of a hydraulic regulation layer, an ion exchange layer, a micro-ecological composite layer and a surface vegetation layer in each hydrodynamic function unit is realized, so that water, solute and electron acceptors form continuous gradients among different layers, and a foundation framework of a water-soil coordinated regulation system is ensured to be complete; and space and material conditions are provided for subsequent percolation regulation and control, microbial activation and carbon sequestration plant growth.