33results about How to "Improve physical structure" patented technology

The invention discloses a recycling method of a waste lithium-ion power battery negative electrode material, which comprises the following steps: deconstructing the waste battery negative electrode material through selective plasma electrolysis, separating organic matters and electrolyte to obtain untreated negative electrode powder, and drying the untreated negative electrode powder to obtain the waste lithium-ion power battery negative electrode material. The powder is refined into uniform particles by adopting a supercritical fluid cooling and crushing technology, the physical structure of the powder is kept, metal elements such as lithium, nickel and cobalt are extracted by utilizing a multi-frequency resonance auxiliary ion exchange technology, impurities are removed, further purification is performed by adopting a superconducting magnetic separation technology and a nanoscale aerosol separation technology, and a high-purity metal solution is generated; metal compounds are generated through an intelligent self-adaptive phase change precipitation technology and are reduced into recyclable metal materials through biological catalytic deposition, the whole recovery process is monitored and optimized through a closed-loop circulation intelligent feedback system, the metal recovery rate is maximized, and harmless treatment is ensured.

The invention relates to the technical field of batteries, in particular to a sodion positive electrode precursor material and a preparation method and application thereof. The chemical formula of the sodium ion positive electrode precursor material is Ni F Mn < c > M < d > (O < H >) < 2 > (at) Ni < a-x > F Mn < c > M < d + x > (O < H >) < 2 >, and M is an element doped according to a preset gradient concentration and comprises one of Zn, Cu and Mg; 0.2 < = a < = 0.8, 0lt; b < = 0.5, 0lt; c < = 0.5, 0 < = d < = 0.1, and a + b + c + d = 1, 0lt; x is less than or equal to 0.2, and the morphology is a sphere-like morphology; the invention also provides a preparation method of the sodion positive electrode precursor material, and the prepared sodion positive electrode precursor material has the structural characteristics of uniform phase, high tap density and gradient concentration increase of doped elements from the inner core to the shell, so that the inner core has high specific capacitance, and the shell has high stability; and the preparation process is simple and easy for large-scale production.

The invention relates to the technical field of sustained and controlled release fertilizers, in particular to a soil-improving disease-resistant sustained and controlled release fertilizer and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of the nutrient core: weighing an organic fertilizer, an ammonium nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a biological regulator, chelated medium trace elements and modified attapulgite, uniformly mixing, and granulating to obtain the nutrient core; (2) covering an organic polymer coating layer: dissolving polylactic acid in a solvent to form a composite solution, spraying the composite solution on the surface of the nutrient core, and drying to obtain an organic polymer coated nutrient core; and (3) covering a mineral coating layer. The outermost layer of the soil-improving disease-resistant controlled-release fertilizer provided by the invention is the mineral coating layer, the mineral coating layer can be gradually disintegrated after being applied to soil, mineral components can improve the physical structure of the soil, regulate the acid-base property of the soil and increase the content of organic matters in the soil after entering the soil, and inorganic and organic nutrients are slowly released into the soil through the organic polymer coating layer; nutrient substances are continuously supplied, and common diseases of the corn are prevented and controlled.

The invention discloses a novel efficient soil conditioner as well as a preparation method and application thereof, and belongs to the technical field of soil improvement. The problems that in the prior art, the salt reducing capacity of a soil conditioner for saline-alkali soil needs to be improved, and efficiency is low are solved. Wherein the novel efficient soil conditioner is obtained by uniformly mixing octasulphate, humic acid, montmorillonite, potassium sulfate, sugar alcohol magnesium and an additive; the preparation method of the additive comprises the following steps: adding modified polyacrylic acid and modified apatite into acetone, and reacting to obtain quaternary ammonium salt grafted apatite; the method comprises the following steps: adding bamboo powder into ionic liquid BMIMCl, adding chloroacetyl chloride, stirring and mixing to obtain an intermediate I; and mixing the intermediate I, quaternary ammonium salt grafted apatite and a catalyst in a nitrogen atmosphere, and reacting at room temperature to obtain the additive. The soil conditioner prepared by the invention can improve the soil quality, improve the soil structure, enhance the soil nutrient retention capability, promote the plant growth and increase the economic value.

The invention relates to the technical field of agriculture, and discloses an organic-inorganic compound fertilizer containing humic acid, which comprises the following components in percentage by mass: 5-25% of nitrogen; 9%-26% of phosphorus; 8%-28% of potassium; 5%-10% of humic acid; 60%-80% of an organic material; 0.5%-2% of medium trace elements; 0.5%-1% of a microbial agent; the organic material comprises but is not limited to lignite, straw powder or a combination thereof; the medium trace elements comprise the following components in percentage by mass: 30%-40% of zinc; 20% to 30% of iron; 10% to 20% of calcium; 20% to 30% of magnesium; the microbial agent comprises one or more of nitrogen-fixing bacteria, phosphorus dissolving bacteria and potassium dissolving bacteria. Nitrogen, phosphorus, potassium, humic acid and medium trace elements are chelated, so that nutrients are in a stable release state in soil, and the problem of nutrient loss caused by too fast dissolution of a conventional fertilizer is effectively avoided.

The invention discloses a process for repairing damaged soil ecology by lincomycin waste liquid fertilizer, and relates to the technical field of soil remediation, which comprises the following specific steps: step 1, screening and culturing microbial decomposition flora, the invention has the following advantages: through the chelation of the polyaspartic acid derivative on metal ions and the promotion effect on nutrient absorption, the release and transmission of nutrients are precisely regulated and controlled, so that crops can absorb and utilize the nutrients more efficiently; the nano composite material and the specific biological stimulant containing various beneficial microbial strains and natural plant extracts are jointly fused into the liquid fertilizer, the microbial strains in the specific biological stimulant activate the soil biological environment, the natural plant extracts assist plant growth to resist diseases, and the nano composite material and the natural plant extracts have a synergistic effect, so that the liquid fertilizer has a good application prospect. Physicochemical properties and biological activity of soil are optimized, excellent soil micro-ecology is created for plant growth, healthy and strong growth of plants is promoted, and restoration of damaged soil is enhanced.

The invention provides an edible fungus culture medium and a preparation method, and relates to the technical field of edible fungus cultivation, and the edible fungus culture medium comprises the following components by mass: 10-20 parts of a seaweed polysaccharide matrix, 5-15 parts of insect protein powder, 15-25 parts of biological carbon fiber, 10-20 parts of corncob powder, 0.5-2 parts of a natural silicon source, a proper amount of a trace element solution, and a proper amount of water. The algal polysaccharide matrix is obtained by extracting algal polysaccharides, including algin or alginic acid, from algae in hot water, the insect protein powder is prepared by drying, crushing and carrying out enzymolysis on yellow mealworms or fly maggots, the biochar fibers are prepared by pyrolyzing bamboo or crop straws, and the natural silicon source is diatomite, bentonite or perlite; the particle size of the natural silicon source is micron-sized, and the trace element solution contains zinc, iron, copper and manganese elements. The culture medium has the beneficial effects that the problems of unbalanced nutrition, poor physical performance, weak disease resistance and the like of the culture medium in the prior art are effectively solved.

The invention discloses a method for reducing nitrogen loss in a cow dung composting process, and relates to the technical field of fertilizer preparation. Comprising the following steps: preparing nano vesicles; pretreating compost raw materials; adding the nano vesicles; and composting and fermenting. According to the method for reducing the nitrogen loss in the cow dung composting process by using the nano-vesicle technology, by preparing and using the specific type of nano-vesicles, ammonia volatilization is effectively reduced, and the nitrogen loss is reduced, so that the fertilizer efficiency of a compost product is improved.

The invention discloses a remediation device for land development, and belongs to the technical field of land development remediation. Comprising a protective shell, a belt conveyor used for conveying objects, a powerful fan used for blowing the objects, a knife type sweeper and an adhesive object collecting device which are used for sweeping the adhesive objects on the belt conveyor, and a compressing and collecting device used for compressing light plastic films. The device comprises a crushing device used for crushing soil, a powerful spraying device used for spraying the soil and dust generated by crushing, a soil collecting and hanging frame used for hanging a soil collecting bag and a crushing device used for crushing hard stones, and the device can separate and collect the soil, the plastic garbage and the stones; the method is beneficial to activity of microorganisms in soil and circulation of nutrients, so that the soil fertility is improved, better conditions are provided for plant growth, interference of plastic garbage is avoided, moisture and nutrients in the soil can be distributed more uniformly, absorption and growth of plant roots are promoted, and the ecological safety of the soil is guaranteed.

The invention discloses a multi-nutrition-level ecological breeding system suitable for freshwater fish breeding, and belongs to the technical field of ecological breeding. The ecological breeding system is provided with a plurality of nutrition levels, the nutrition levels at least comprise a fish nutrition level, a filter-feeding shellfish nutrition level and a benthic organism nutrition level, the ecological breeding system further comprises submerged plants, and the ecological breeding system is characterized in that the bottom layer of the ecological breeding system is the benthic organism nutrition level, and the bottom layer of the ecological breeding system is the filter-feeding shellfish nutrition level. The benthic organism nutrition level comprises ecological concrete and biochar, the biochar provides a habitat for benthic organisms, the ecological concrete provides an activity space for the benthic organisms, and submerged plants are fixed by a porous structure of the ecological concrete. According to the multi-nutrition-level ecological breeding system suitable for freshwater fish breeding, organic matter pollutants and heavy metal in sediments at the water bottom can be effectively removed, the stability of the sediments is improved, and resuspension of the organic matter pollutants, caused by water flow disturbance, of the sediments is reduced.

The invention provides an improvement method of soda saline-alkali soil, and belongs to the technical field of soil improvement. The method comprises the following steps: crushing corn straws, spreading the crushed corn straws on the surface of soda saline-alkali soil according to the addition amount of 15-20 tons / hectare, ploughing, harrowing, ridging, sowing jute seeds, fertilizing, and burying a drip irrigation belt in the middle of a ridge at a position 3-5 cm away from the earth surface. According to the method, the straw returning technology is matched with jute planting, the soil salinity and alkalinity of the soda saline-alkali soil are remarkably reduced, the soil fertility is improved, the soil environment is improved, and the yield and quality of jute are remarkably improved.

The invention discloses an ecological slope reinforcing method by combining biopolymer with biochar, which comprises the following steps: improving the vegetation condition and initial strength of soil by using biochar and biopolymer with high cohesive force as soil additives, and filling plant planting holes with prepared improved soil and plant seeds, the shear strength of the slope soil is improved by utilizing the reinforcing effect of the plant root system and the biopolymer, and meanwhile, water and soil loss caused by rainfall and the like is reduced. The biochar is added to improve the planting conditions of the soil, improve the air permeability of the soil and prevent the problems of soil hardening and the like possibly caused by biopolymers. Results show that the combined action of the biopolymer and the biochar can effectively improve the soil strength and promote the plant growth, and guarantee is provided for the long-term stability of the side slope.

The invention provides a saline-alkali soil wheat planting method, and relates to the technical field of wheat planting. The method comprises the following steps: firstly, adopting pretreated desulfurized gypsum and potassium fulvate as a soil conditioner to improve the saline-alkali soil structure, then adopting a row-shrinking ridging planting mode, applying a base fertilizer in a drip irrigation manner, and cooperating with a compound microbial agent containing bacillus subtilis, chlorella and the like to enhance the soil activity, and through precise water and fertilizer integrated management in the wheat growth period, the soil quality is improved. And fertilizers such as urea and potassium phosphate and microbial agents are dripped in different growth periods, so that sufficient and balanced nutrition supply is ensured. The saline-alkali soil wheat planting method can remarkably improve the soil fertility of the saline-alkali soil, promote wheat root development and stress resistance, improve the wheat yield, optimize the water and fertilizer utilization efficiency and save resources, is suitable for practical application in drought saline-alkali soil and has wide popularization value.

The present application relates to the field of agricultural soil improvement material and fertilizer engineering technology, in particular to an acid paddy soil organic-inorganic improver preparation method based on multi-component distribution ratio; the process comprises the steps of preparing a composite pore substrate loaded with trace elements, forming an inorganic core, constructing an organic buffer layer, coating a micro-ecological layer and cross-linking and solidifying; the method is based on a hot-activated composite of attapulgite and sodium bentonite, and an inorganic core is constructed by combining step-by-step vacuum impregnation of trace elements; the core is to use xanthated in situ coordination and cross-linking on the surface of the core to form an isolation film and a buffer layer, and to suspend spore powder in sodium alginate and the like, and to synchronously spray calcium chloride to cross-link and solidify to construct a microcapsule shell; the present application avoids the loss of biological effectiveness of trace elements due to the formation of precipitates, gently adjusts the pH value of the soil, effectively solves the problem of easy loss of activity of microorganisms in the conventional process, and improves the physical structure of the soil for water and fertilizer conservation.

The invention discloses a method for reducing sludge moisture content and greenhouse gas emission in a biological drying process, which comprises the following steps: preparing sludge, biomass, biochar and calcium oxide into a mixed material, carrying out biological drying on the mixed material, and in the biological drying process, after 25 hours, adding magnesium chloride to complete biological drying treatment on the sludge. According to the method disclosed by the invention, calcium oxide and magnesium chloride are sequentially added in the biological drying process, and moisture in the sludge can be efficiently removed and the yield of greenhouse gases can be remarkably reduced under the combined action of calcium oxide and magnesium chloride, so that the moisture content of the sludge and the emission of the greenhouse gases in the biological drying process can be effectively reduced; the method has the advantages of being simple in process, convenient to operate, low in cost, high in drying efficiency, small in pollution gas emission amount, environmentally friendly and the like, not only can effectively solve the problem of greenhouse gas emission reduction in the sludge biological drying process, but also can achieve rapid sludge reduction, and is high in use value and good in application prospect.

The invention provides an ecological restoration method for moss crust in a dry-hot valley area by taking slag as a main material. An ecological restoration base material comprises the following components: slag, planting soil, plant straw, a water-retaining agent, a fertilizer-retaining agent, a structure modifier, a growth promoting agent and moss powder. The slag is used as a main material, engineering waste is effectively converted into ecological restoration resources, environmental pollution and resource waste are reduced, the physical structure of soil is improved through the water-retaining agent and other admixtures, the air permeability and drainage of the soil are improved, growth of moss roots is promoted, ecological restoration is promoted, and increase of biological diversity is promoted; the formation of the moss crust can improve the local microclimate, increase the soil humidity and promote the growth of other plants, and the physical characteristics of the slag and the growth of the moss are combined, so that the moss can better survive under a drought condition, the adaptability of the moss to a dry and hot environment is enhanced, soil wind erosion is effectively prevented, and soil resources are protected.

The invention discloses a shaping seedling substrate and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a mushroom residue and chicken manure fermented material; s2, preparing the modified sepiolite; s3, preparation of mixed slurry: uniformly mixing the mushroom residue and chicken manure fermented material in the step S1, peat and the modified sepiolite in the step S2, adding water with the weight 4 times that of the mixture, stirring the mixture to be in a slurry state, then adding a polyurethane prepolymer and a foaming agent solution, and stirring the mixture for 3-5 minutes to obtain the mixed slurry; s4, preparation of the shaping seedling culture substrate: pouring the mixed slurry in the step S3 into a mold, foaming and curing, and then demolding and drying to obtain the shaping seedling culture substrate. The shaping seedling-raising substrate has high porosity and water absorption, proper water-retaining property and air permeability and excellent mechanical properties, and can effectively maintain, regulate and control the content of moisture and nutrients in the substrate, thereby ensuring the growth of plant seedlings.

The invention relates to a durable road marking paint and a preparation method thereof, and belongs to the technical field of paints.The durable road marking paint is prepared from a component A and a component B. The mass ratio of the component A to the component B is (4-5): (95-96), the component A is prepared from, by mass, 15-30 parts of polyvinyl chloride, 15-20 parts of styrene-acrylic resin, 5-10 parts of acrylonitrile-butadiene-styrene copolymer and 5-10 parts of polyetherimide; 20 to 30 parts of a silane coupling agent and 15 to 30 parts of polyether modified organic silicon; and the component B comprises 10-15 parts of petroleum resin, 5-10 parts of polytetrafluoroethylene, 5-8 parts of rutile titanium dioxide, 38-42 parts of superfine calcium carbonate powder, 5-10 parts of nano spherical silica powder and 18-20 parts of reflective glass beads. The durability of the road marking paint can be improved, the overall reflective performance of the material can be improved, and the service life of the road marking can be prolonged.

This invention provides a slope protection material composed of recycled heavy metal tailings and its preparation method. The material includes: recycled heavy metal tailings treated with a heavy metal chelating agent as a heavy metal ion capture agent, the chelating agent being added at 0.05%–0.2% of the heavy metal tailings weight; recycled heavy metal tailings as aggregate, which is mixed with natural soil to form a base material at a ratio of 1:1.5–2.5; fine aggregate and fine sand, added at 5%–10% of the base material weight; and high-viscosity industrial-grade sodium alginate added as a water-retaining and reinforcing agent, added at 0.5%–2.0% of the base material weight. Additionally, 28% organic matter is added to the base material. The application of this invention effectively solves the problems of ineffective utilization of recycled heavy metal tailings and excessive use of scarce natural soil in existing technologies, and also addresses the issues of weak strength, poor effectiveness in steep slope treatment, and poor stability in existing slope protection materials.

The invention belongs to the technical field of lithium ion batteries, and relates to a cyano electrolyte additive, an electrolyte and a lithium ion battery. The cyano electrolyte additive comprises a nitrile additive and a functional additive; the structural formula of the functional additive is shown in the specification. The nitrile additive and the functional additive are compounded, the functional additive has a cyano group and a triazine ring, the triazine ring is chelated with transition metal ions and cooperates with the cyano group to form a film, and a benzene ring rigid structure can enhance the thermal stability. The nitrile additive and the functional additive have a cyano complementation effect, three phenyl groups in the functional additive are connected with a triazine ring, so that the functional additive has a larger structure and steric hindrance and cannot be completely complexed with transition metal ions on the surface of the positive electrode, and the short-chain nitrile additive has a smaller structure and can make up the space of the functional additive; and the two synergistically form a complementary effect to form a compact interfacial film on the surface of the positive electrode so as to improve the high-temperature performance.

The invention relates to the technical field of photo-assisted electro-catalysis, and discloses a modified molybdenum disulfide / carbon-based composite material and a preparation method and application thereof, and the modified molybdenum disulfide / carbon-based composite material comprises an entangled carbon-based material; low-defect MoS2 is embedded in the entangled carbon-based material and on the surface of the entangled carbon-based material; the surface of the entangled carbon-based material is partially coated with a hydrophilic polymer. The preparation method comprises the following steps: uniformly mixing the low-defect MoS2 and the entangled carbon-based material, adding a hydrophilic polymer solution, stirring at room temperature for 30 minutes, and drying to obtain the modified molybdenum disulfide / carbon-based composite material. The modified molybdenum disulfide / carbon-based composite material is used for photo-assisted electro-catalysis hydrogen production. According to the modified molybdenum disulfide / carbon-based composite material provided by the invention, the hydrophilic and hydrophobic properties are improved, and a larger contact area and a larger mass transfer rate are brought, so that the overall hydrogen production performance is obviously improved.

The present invention discloses a method for preparing a woven fabric-based cellulose-amino acid composite diaphragm. In order to solve the problems of poor mechanical properties and electrolyte wettability of existing diaphragms, high cost, and being unfavorable for industrial application, the present invention proposes a method for preparing a sodium ion battery diaphragm using woven fabric as a substrate, cellulose and amino acids as filling materials, through dissolution, commingling, coating, and replacement processes. The composite diaphragm of the present invention utilizes the orderly interlacing of the warp and weft yarns of the woven fabric to achieve the design of the pore structure and curvature of the diaphragm, while improving the mechanical properties of the diaphragm, and establishing an efficient ion transmission channel inside the battery. In the present invention, the filling materials cellulose and amino acids further optimize the pore structure of the diaphragm, enrich the polar functional groups of the diaphragm, and improve the cycle stability of the battery and extend the cycle life of the battery through uniform electric field distribution and ion concentration.

The invention provides a remediation method for soil in a semi-arid region, and belongs to the technical field of soil remediation. According to the remediation method for the soil in the semi-arid region, the physical structure of the soil is optimized through deep ploughing and rainwater collection, a straw matrix, the chemical environment is regulated and controlled through a composite conditioner, the biological function is enhanced through mixed sowing of local pioneer plants and a composite microbial agent, and a multi-dimensional synergistic remediation system is formed; local pioneer plants are selected, so that the invasion risk of alien species is avoided; natural materials such as degradable starch mulching film, decomposed straw and organic fertilizer are adopted and matched with the compound microbial agent, no chemical residue exists, local microbial community optimization can be promoted, and the stability of a soil ecological system can be improved; straw, cattle and sheep manure and other agricultural wastes are used for preparing a matrix and an organic fertilizer, and the raw material cost is reduced; the design of the rainwater collecting ditches is combined with natural rainwater resources, the manual irrigation cost is reduced, the soil ecosystem can be autonomously kept stable after remediation is completed, and secondary degradation is effectively avoided.

This invention proposes a method and system for constructing a microbial and vegetation synergistic revegetation system for coastal saline soil engineering sites. It belongs to the field of ecological restoration engineering technology. The method includes: analyzing the micro-topographic features of coastal saline soil engineering sites, identifying heterogeneous areas of natural micro-topography, and generating micro-topographic feature data; designing differentiated micro-topographic modification schemes based on the micro-topographic feature data, constructing a micro-topographic modification model with spatial differentiation characteristics, and providing a suitable micro-environmental basis for subsequent synergistic effects of microorganisms and vegetation; and deeply coupling MIP (microbial community-induced calcium carbonate mineralization) technology with the screening of salt-tolerant plant functional groups, combined with differentiated micro-topographic modification design, breaking the traditional separation between soil improvement and planting, effectively improving the soil structure of coastal saline soil, enhancing soil water retention, providing a suitable soil environment for stable vegetation establishment, and avoiding revegetation failure due to unsustainable soil structure improvement.

The invention relates to the technical field of saline-alkali dry farmland improvement. The invention provides a modifier for saline-alkali dry farmland as well as application and a use method of the modifier. The modifier comprises the following components in parts by weight: 25-35 parts of corn straws, 27-31 parts of corncobs, 17-23 parts of peanut shells, 13-17 parts of soybean meal, 4-6 parts of humic acid, 0.4-0.6 part of polyglutamic acid and 0.4-0.6 part of wood vinegar powder. The multifunctional bio-based modifier provided by the invention is suitable for improvement and utilization of moderately severe saline-alkaline dry farmland, effectively reduces the saline-alkaline degree, increases the content of organic matters and nutrients, and promotes the growth of plants. After the fertilizer is applied for 2-3 years, the normal cultivation level is reached, long-term cultivation and utilization of moderate and severe saline-alkali soil can be realized by combining conventional soil improvement and fertilization measures, the cultivated area is supplemented, the per unit yield of crops is improved, and the national grain safety is guaranteed. The multifunctional bio-based macromolecular modifier has great application prospect and popularization potential in improvement and utilization of moderate and severe saline-alkali soil.

The invention discloses a method and a device for preparing multi-element material artificial soil, which are characterized in that alkaline building residues and pig manure straws are subjected to a series of crushing, screening, impurity removal and basic physicochemical analysis to meet the process requirements of biochemical coupling, and the preparation proportion is determined according to the organic-inorganic composition proportion and the overall fermentation effect of natural soil; the pretreated raw materials and an optimized fermentation ratio are coupled under a specific biochemical condition, and decomposition and humification of organic matters are promoted by utilizing the catalytic action of microorganisms and enzymes. By controlling the fermentation reflux device, the biogas slurry obtained through fermentation is recycled, the biogas slurry contains high-concentration nitrogen, phosphorus, potassium and other nutrients, the nutrients are not prone to loss and are more environmentally friendly through the reflux device, the metabolic pathway of microorganisms is further optimized, the activity of the microorganisms is enhanced, and the conversion rate of organic matter is increased.

The invention discloses a method for increasing apatite phosphorus content in biochar, which comprises the following steps: mixing sludge, biomass, biochar and calcium oxide to prepare a mixed material, biologically drying the mixed material for less than or equal to 12 days, adding magnesium chloride after 25 hours in the biologically drying process, pyrolyzing the obtained biologically dried product to obtain the phosphorite phosphorus content in the biochar. The preparation of the biochar is completed. According to the method disclosed by the invention, under the combined action of calcium oxide and magnesium chloride, a biological drying product with low water content and high apatite phosphorus content can be formed through biological drying treatment; the content of phosphorite phosphorus in the biochar can be remarkably increased under the condition of low pyrolysis energy consumption through simple pyrolysis treatment, the biochar with the high phosphorite phosphorus content is obtained, and the method has the advantages of being simple in process, convenient to operate, low in cost, high in drying efficiency, small in pollution gas emission amount, low in energy consumption, environmentally friendly and the like; and the method has important promotion significance for realizing resource utilization of the sludge-based biochar.

The present invention relates to a method for regulating seedling formation of sandy locust seeds, belonging to the technical field of seed treatment and seedling cultivation, and the method comprises: step 1, disinfection and cleaning; step 2, seed soaking treatment: soaking sandy locust seeds in a mixed solution of cellulase and hemicellulase for 2-6 hours, and then soaking the seeds in 0.1%-0.3% KNO3 for 6-10 hours; step 3, placing on a bed for cultivation. The enzyme treatment is combined with KNO3 to treat sandy locust seeds, and the treatment can improve the emergence rate of sandy locust seeds and the number of branches, plant height and total biomass of sandy locust seedlings.

The invention relates to the technical field of medicines, in particular to a terbutaline sulfate aerosol inhalation solution and a preparation method thereof. The solution realizes a performance breakthrough through a molecular synergistic effect of polysorbate modified cyclodextrin: firstly, hydroxypropyl-beta-cyclodextrin and polysorbate 80 are activated and covalently grafted to form a modified carrier with a core-shell structure, and then the modified carrier is compounded with terbutaline sulfate, sodium chloride, edetate disodium and sodium hydrogen sulfite to prepare the solution. The stable core-shell structure formed through chemical grafting is combined with the synergistic effect of the chelating agent and the antioxidant, the technical problems that a traditional preparation is low in atomization efficiency, high in burst release risk and poor in stability are effectively solved, and a safer and more efficient inhalation solution is provided for treatment of respiratory diseases.

The invention discloses a preparation method of a corrugated paper-based biodegradable mulching film, which is an innovative method for preparing a cellulose-based biodegradable agricultural mulching film by taking waste paper with low recovery value, especially corrugated paper fibers for packaging, as raw materials through a solution casting film surface sizing process. The method effectively solves the problems of fiber pore wall shrinkage and cellulose co-crystallization caused by a repeated wetting-drying process. The prepared mulching film has excellent physical properties, heat preservation and soil moisture conservation effects and biodegradability, meets the use requirements of agricultural mulching films, solves the problem of white pollution caused by traditional plastic mulching films, and promotes cyclic utilization and sustainable development of resources.