187results about How to "No pollution" patented technology

The invention discloses a compound enzyme preparation for improving the absorption and utilization rate of a fertilizer and a preparation method thereof, and belongs to the technical field of enzyme preparations. The compound enzyme preparation is prepared from the following components in parts by weight: 100 parts of purified water, 6 to 8 parts of modified cellulase, 10 to 12 parts of immobilized protease, 10 to 12 parts of phosphatase, 10 to 14 parts of urease, 8 to 10 parts of nitrate reductase, 10 to 12 parts of pectinase, 8 to 10 parts of chitinase, 6 to 8 parts of xylanase, 10 to 12 parts of beta-glucosidase, 10 to 12 parts of superoxide dismutase and 4.5 to 6 parts of a microbial agent, the modified cellulase is obtained by chemically modifying cellulase; the immobilized protease is prepared by the following steps: adsorbing activated and coupled modified polylactic acid and a protease solution, crosslinking with glutaraldehyde, filtering, washing and drying. The compound enzyme preparation improves the fertilizer absorption and utilization rate of plants.

The invention belongs to the technical field of semiconductor photoelectric devices, and particularly discloses a preparation method for realizing growth of ultralow-defect perovskite single crystals based on steric hindrance control, which comprises the following steps: preparing a perovskite single crystal precursor solution: dissolving a perovskite single crystal precursor in a homogeneous solvent with coordination capability to prepare the precursor solution; and generating a perovskite single crystal seed crystal: heating the prepared perovskite single crystal precursor solution until microcrystals appear, selecting to form good crystals, drying, and storing as the seed crystal for future use. And growing the perovskite single crystal: putting the generated perovskite single crystal seed crystal into the perovskite single crystal precursor solution, heating, and growing to obtain the perovskite single crystal. The preparation method comprises the following steps: dissolving a precursor in a homogeneous solvent with coordination capability through a temperature reversal crystallization method, and adjusting the temperature to carry out single crystal growth; according to the steric hindrance theory, the growth temperature is selected by regulating and controlling the solvent proportion, and the perovskite single crystal with ultralow defect density is obtained.

The invention provides a novel strain M2108 of a salt-tolerant bacillus, the preservation number of the salt-tolerant bacillus is CGMCC (China General Microbiological Culture Collection Center) No.28283, and the novel strain M2108 of the salt-tolerant bacillus has relatively good salt tolerance and can grow and proliferate in a high-salt environment; the strain can be rapidly and stably colonized in a plant, and is rapid in propagation speed and strong in multiplication capacity in the plant. The new strain M2108 of the salt-tolerant bacillus provided by the invention has a treatment effect and a high control effect on various plant diseases: the control effect on diseases such as tomato root rot, damping-off and damping-off caused by fusarium oxysporum, pythium aphanidermatum and rhizoctonia solani is high, and the average control effect is 91.2% or above. When being used for preventing and treating plant diseases, the salt-tolerant bacillus M2108 is not easy to generate drug resistance, has good drug effect durability, is safe to human and livestock, and does not cause environmental pollution; the salt-tolerant bacillus M2108 microbial agent and the biocontrol agent provided by the invention are simple in preparation method, low in cost and simple and convenient to use. The salt-tolerant bacillus M2108 has a good application prospect in the prevention and control of plant diseases, and lays a foundation for the development of efficient and broad-spectrum biocontrol preparations.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention discloses a split type micro-fluidic chip and a working method thereof. In the chip, a reagent storage module is connected with a reaction module through a connection module, and the reaction module is slidably arranged in a chute of the connection module; a plurality of solution containing cavities are formed in the reagent storage module, a sealing film is attached to the top of the reaction module, and a plurality of solution overflowing cavities are formed in the reaction module; during work, the reaction module and the reagent storage module abut against each other, and when the solution containing cavity is communicated with the atmosphere, directional flowing and releasing of a solution in the solution containing cavity in the micro-fluidic chip to the solution overflowing cavity are achieved through negative pressure pumping. Sample sampling, cleaning, nucleic acid adsorption, elution and reaction in the micro-fluidic chip can be achieved, and instant detection of pathogenic microorganisms is achieved.

The invention belongs to the technical field of agricultural nanoparticle preparations, and relates to a dopamine nanoparticle for relieving plant salt stress and a preparation method thereof. And adding the double-ligand chelated dopamine solution into the lignin-based nano-particle suspension, and stirring to obtain the lignin-based nano-particle suspension. According to the invention, metal ions are adopted as a connecting bridge and are respectively chelated with dopamine and ethylenediamine tetraacetic acid salt, so that double-ligand chelated dopamine is obtained, and the self-polymerization behavior of dopamine is inhibited. The invention also provides a method for loading dopamine by using lignin-based nanoparticles. The self-polymerization of the dopamine is further inhibited; the adsorption of the soil on the dopamine is reduced, and the utilization rate of the dopamine is improved.

The invention relates to the technical field of eutectic, in particular to a binding head assembly, eutectic equipment and a chip mounting method.The binding head assembly comprises a driving assembly, a suction nozzle assembly and a visual assembly, and the suction nozzle assembly is arranged at the output end of the driving assembly and comprises a suction nozzle base, a suction nozzle, a first transparent part and a second transparent part; a through hole is formed in the suction nozzle seat, and the visual assembly is aligned with the through hole; the suction nozzle is arranged at one end of the through hole, and the first transparent part is arranged at the other end of the through hole and seals a port of the through hole; a penetrating adsorption channel is formed in the suction nozzle and communicated with the through hole, and an air path connecting hole is formed in the inner wall of the through hole; the suction nozzle is further provided with a perspective observation window, the observation window and the adsorption channel are arranged in a spaced mode, projection is conducted in the axial direction of the through hole, and the projection of the observation window is located in the projection of the through hole. The binding head assembly provided by the invention can be used for carrying out high-precision positioning on a plurality of chips in the eutectic mounting process.

The invention relates to the field of scavengers, in particular to a copper-based urea crystal scavenger for a vehicle and a preparation method of the copper-based urea crystal scavenger. The automotive copper-based urea crystal scavenger provided by the invention is prepared from the following raw materials: a copper-based catalyst, a surfactant, a foaming agent, a dispersing agent, a reducing pigment and deionized water, wherein the copper-based catalyst comprises copper acetate, the surfactant comprises AEO-10 and MOA-3PK, and the reducing pigment comprises methylene blue; the prepared automotive copper-based urea crystal scavenger is convenient to use, excellent in urea crystal melting effect and short in effective mileage, the environmental protection property of automobile running can be obviously improved after the automotive copper-based urea crystal scavenger is used, and meanwhile the effect of reducing the use cost of an automobile is remarkable.

The invention discloses a lead-free energy storage ceramic laminated material, and belongs to the technical field of dielectric energy storage. The lead-free energy storage ceramic laminated material is formed by sequentially laminating lead-free energy storage ceramic with a texture structure and lead-free energy storage ceramic with a non-texture structure, and preferably, the material comprises at least three layers; when the lead-free energy storage ceramic with the texture structure is positioned on the middle layer, the lead-free energy storage ceramic with the non-texture structure is positioned on the two sides of the middle layer; when the lead-free energy storage ceramic with the non-texture structure is located on the middle layer, the lead-free energy storage ceramic with the texture structure is located on the two sides of the middle layer. Based on the structural design of at least three layers, the non-textured ceramic is selected as the high-voltage-resistant layer, the textured ceramic is selected as the high-polarization layer, the lead-free ceramic laminated material with excellent energy storage performance is obtained, and the lead-free ceramic laminated material has wide application prospects in the fields of power electronics and pulse power.

The invention relates to the technical field of production of fiber-reinforced thermoplastic composite prepreg and composite laminated plates thereof, in particular to a production method of high-strength polypropylene fiber-reinforced polypropylene resin unidirectional prepreg and a composite material. The method mainly comprises the following steps: straightly and tightly arranging and unfolding a certain number of polypropylene fibers, extruding a casting film from polypropylene resin through a screw, laminating and infiltrating the polypropylene resin and the polypropylene fibers, and pressing and coiling through a cold pressing roller to prepare the unidirectional belt. The one-way prepreg of the polypropylene self-reinforced composite material is paved according to a certain paving direction and thickness and then is subjected to hot pressing to prepare a polypropylene self-reinforced composite material laminated plate with a certain size and thickness. Or slitting the polypropylene self-reinforced composite material unidirectional prepreg, weaving the slit unidirectional prepreg with relatively narrow width, cutting and paving according to a certain size, or mixing and paving with a single-line prepreg tape, and performing hot pressing to form the polypropylene composite material laminated plate.

The invention discloses a nitrogen fertilizer synergist and application thereof, and belongs to the technical field of fertilizers. The nitrogen fertilizer synergist comprises the following raw materials in percentage by mass: 15-40% of a nitrification inhibitor, 5-10% of butyl dihydrojasmonate, 1-5% of a soil loosening agent, 30-50% of a dispersing aid, 5-10% of an anti-caking agent, 0.1-5% of a trace element fertilizer and 0-5% of nutritional ingredients. According to the nitrogen fertilizer synergist disclosed by the invention, by adding the dihydro jasmonic acid butyl ester, the dispersity of the nitrogen fertilizer synergist can be improved, the fertilizer efficiency of the fertilizer is improved, the growth of plants is promoted, the stress resistance of the plants is improved, the nitrogen fertilizer synergist also has double functions of delaying nitrogen conversion and promoting nitrogen absorption, the utilization efficiency of nitrogen is further improved, and the nitrogen fertilizer synergist is relatively good in flowability and can be applied to the field of agricultural production. The nitrification inhibitor is stable in high-temperature and low-temperature environments, is convenient to use, can be directly used for particle spraying or adding of fertilizer, and solves the problem that nitrification inhibitors such as DMPP can only be used after being dissolved by special solvents.

The invention discloses a diaphorina citri adult repellent composition and application thereof. The repellent composition is prepared from the following components in parts by weight: 0.1 to 1.2 parts of nootkatone, 0.05 to 1.0 part of carvacrol, 4.0 to 6.5 parts of thymol and 3.0 to 5.0 parts of sophocarpidine. The repelling effect of the repellent composition on diaphorina citri adults is better than that of a single component, and the synergistic diaphorina citri adults repelling effect is achieved among the components. The components of the repellent composition are low in price, the cost for manufacturing the lure can be reduced, and the repellent composition is suitable for popularization and promotion.

The present invention provides a testing device for a pulser, comprising: a simulated main valve; the simulated main valve comprises a connection part for connecting with the pulser to be tested, and a pressure feedback part installed on the connection part so as to be movable up and down; a simulated load is arranged on the pressure feedback part, and an acceleration sensor and a collection and communication component connected to the acceleration sensor are fixed on the simulated load, and the collection and communication component is used to receive the signal collected by the acceleration sensor and then output it to a terminal device; an air source supply component is connected to the simulated main valve, and is used to deliver high-pressure gas to the simulated main valve to simulate the pressure of the drilling fluid downhole. The simulation of the downhole environment is realized by the simulated load and the air source supply component, and the accuracy of the test results is improved; and the high-pressure gas will not cause pollution to the pulser, and the damage to the pulser to be tested caused by the test process is avoided; in addition, by setting the simulated main valve, the problem that the influence of the main valve on the test results is difficult to eliminate is also solved.

The invention relates to the technical field of oil field yield increase and transformation, in particular to environment-friendly biological blockage removal liquid and application thereof, and aims to solve the problem that a current biological blockage removal product can only remove organic blockage. The environment-friendly biological unblocking liquid provided by the invention is prepared from the following components in percentage by mass: 2-5% of biological enzyme, 1-5% of surfactant, 1-5% of pH (Potential of Hydrogen) regulator and the balance of water. 1%-3% of a biological enzyme stabilizer; 3-5% of a chelating agent; 0.5%-1% of a surfactant; 0.5%-1% of a dispersion suspending agent; and the balance of water. The biological blockage removal liquid provided by the invention can effectively remove organic blockage of a stratum caused by wax and asphaltene precipitates, so that crude oil is released from the surfaces of rock particles, the flowing of the crude oil in pores of the stratum is improved by changing the wetting state of rock, and inorganic blockage is removed through permeation dispersion and chelation solubilization effects, so that the mechanical property of the stratum is improved. Mixed scales formed by mutual deposition of inorganic scales and organic matters (wax and asphaltene) are effectively removed, and the requirement for plugging removal of a complex scaling reservoir of an oil well is met.

The invention discloses a preparation method of octafluorocyclopentene, which comprises the following two steps of: firstly, reacting 4-cyclopentene-1, 3-diketone with a selective fluorine reagent in acetonitrile under the condition of reflux to generate a crude product second mixture, purifying the second mixture, and putting the purified second mixture into a second-step reaction to obtain the octafluorocyclopentene. Reacting with diethylamino sulfur trifluoride in dichloromethane to generate a third mixture; the method has the advantages of environment-friendly and simple reaction process, no generation of three wastes, low cost, easy obtaining, simple reaction process, mild reaction, no generation of waste gas pollution even if nitrogen protection is needed, easy operation, and suitableness for industrial production.

The high-frequency electromagnetic valve comprises an installation nut, a liquid flow cavity, a limiting sleeve, a valve cavity, a valve body, a valve element and a sealing ring. A valve cavity is formed in the valve body, and a valve element capable of moving in the axial direction is arranged in the valve cavity. A limiting sleeve is further arranged between the valve element and the valve cavity, the liquid flow cavity comprises a liquid flow cavity body, the liquid flow cavity body comprises a large cylinder and a small cylinder, the small cylinder is located in the center of the end face of the large cylinder, the large cylinder and the small cylinder are coaxially arranged, a liquid flow cavity liquid outlet hole is formed in the center of the small cylinder in the axis direction, and liquid flow cavity liquid inlet holes are formed in the end face of the large cylinder around the small cylinder by a circle. An isolation sealing gasket is arranged on the inner ring of the large cylinder, the isolation sealing gasket, the large cylinder and the small cylinder jointly define a cavity, the cavity is communicated with the liquid flow cavity liquid inlet hole and the liquid flow cavity liquid outlet hole, the inner ring of the large cylinder is in threaded fit with the valve cavity, the outer ring of the large cylinder is matched with the installation nut, and the valve element pushes the isolation sealing gasket in the liquid flow cavity to move. And the liquid outlet hole of the liquid flow cavity is sealed or the liquid outlet hole of the liquid flow cavity is opened.

The invention relates to the technical field of natural product extraction, in particular to a process for separating and extracting nervonic acid from xanthoceras sorbifolia bunge. The preparation method comprises the following steps: extracting xanthoceras sorbifolia bunge kernels to prepare xanthoceras sorbifolia bunge oil; the xanthoceras sorbifolia bunge oil is filtered and refined through a composite polyethersulfone membrane, and mixed fatty acid is prepared; mixing fatty acids to prepare nervonic acid. Molybdenum disulfide and lithium fluoride treated by hydrochloric acid are jointly dispersed in a solution, and after a composite nano material prepared through treatment of molybdenum disulfide and lithium fluoride is used for treating a polyether sulfone membrane, the obtained composite polyether sulfone membrane does not generate pollution and has an adsorption effect on impurities in xanthoceras sorbifolia bunge oil; when the xanthoceras sorbifolia bunge oil is filtered by the polyether sulfone membrane, other impurities are adsorbed, the xanthoceras sorbifolia bunge oil is refined, the content of an extraction solvent and other impurities in the xanthoceras sorbifolia bunge oil is reduced, and the extraction rate and purity of nervonic acid extracted from the xanthoceras sorbifolia bunge oil are improved.

The invention belongs to the technical field of agricultural production, and discloses a plant cell nutrient, a preparation method and application. The plant cell nutrient comprises fruit and vegetable wastes, animal tissue wastes, an organic fiber raw material, a fermentation inoculant, molasses and water, wherein the fruit and vegetable wastes are a large amount of residues and wastes generated in the growth, harvesting, storage and circulation processes of fruits and vegetables; the animal tissue wastes are meat and bones of livestock and poultry died of illness and waste livestock and poultry, and the fermentation inoculant comprises a mixed bacterial suspension of lactobacillus acidophilus, bacillus subtilis and saccharomyces cerevisiae. The plant cell nutrient is prepared by the following steps: (1) pretreating raw materials; (2) carrying out aerobic fermentation; and (3) carrying out anaerobic fermentation to obtain the plant cell nutrient. The plant cell nutrient prepared by the invention is a biological organic fertilizer which is capable of promoting growth, preventing diseases and pests, efficient, broad-spectrum, antibacterial, green and safe, is low in production cost and is suitable for popularization and application.

The invention discloses a device for releasing insecticidal microorganisms and natural enemies by a forest unmanned aerial vehicle and a use method thereof, and relates to the technical field of pest control, the device comprises a box groove, a three-fork flying wing is arranged above the box groove, the box groove is hung below the three-fork flying wing, and a clamping groove cover plate is slidably inserted in the front surface of the box groove; the wooden box groove is used as a carrier for releasing biocontrol natural enemies and microorganisms, meanwhile, the design of the wooden three-fork flying wings is combined, the box groove can be matched with unmanned aerial vehicle releasing, precise and targeted releasing is achieved, waste caused by large-area spraying is avoided, the interior of the box groove can provide a safe space for biocontrol living bodies such as the natural enemies, continuous targeted releasing is achieved, and the biocontrol living bodies are protected from being damaged. Compared with a traditional unmanned aerial vehicle high-altitude direct spraying mode, the releasing method adopted by the invention is simple, convenient and low in cost, compared with other prevention and control methods, the manual labor is greatly reduced, on one hand, the safety of biocontrol natural enemies and microorganisms is ensured, and on the other hand, the targeting and accuracy of unmanned aerial vehicle release are ensured.

The chlorine purification device comprises a raw material tank, a vaporizer, a heavy component removal tower, a light component removal tower, a condenser, a reboiler and a finished product tank. The raw material tank is used for storing untreated liquid chlorine, the liquid chlorine enters the vaporizer for heat exchange to obtain chlorine, the chlorine enters the heavy component removal tower for rectification separation, and trace water, nitrogen trichloride, metal ions and other heavy components in the chlorine are discharged from a tower kettle of the heavy component removal tower in the rectification separation process; the chlorine after heavy component removal flows into a light component removal tower after being treated by a first condenser, oxygen, nitrogen, argon, hydrogen, carbon monoxide, carbon dioxide and hydrocarbon gases are discharged by the light component removal tower and a second condenser, and the generated chlorine enters a finished product tank to be stored for later use. Chlorine can be purified by using a relatively simple process, and environmental pollution cannot be caused in the purification process.

The present application relates to the technical field of centrifuges, and particularly relates to a rapid detection device for laboratory centrifuge components and a working method thereof, comprising a transmission line, a solution tank and a rotary table, the lower side of the rotary table is provided with at least one group of rotatable clamping assemblies, the clamping assemblies are used for clamping a spiral pusher to reciprocate between the solution tank and the transmission line, a plurality of electric telescopic rods II are arranged between the clamping assemblies and the rotary table, the electric telescopic rods II drive the clamping assemblies to lift, the spiral pusher is lowered into the solution tank to perform corrosion resistance test, the inner side of the solution tank is provided with a liftable cylindrical baffle, the cylindrical baffle is lifted away from the solution tank along with the spiral pusher, the clamping assembly drives the spiral pusher to rotate to perform spin-drying, and the present application realizes automatic continuous test function conveniently and efficiently.

The present application belongs to the technical field of biological oil catalytic hydrogenation, and particularly relates to a bio-based oil-soluble molybdenum catalyst, a preparation method and application thereof. The preparation method of the bio-based oil-soluble molybdenum catalyst provided by the present application comprises: mixing a molybdenum source, a bio-based linear organic acid with a carbon atom number of 16 or more and an additive, heating and reacting, and separating to obtain the bio-based oil-soluble molybdenum catalyst; the additive is selected from at least one of tetrahydro naphthalene and decahydro naphthalene. The bio-based oil-soluble molybdenum catalyst green material obtained by the present application has optimal activity and high dispersibility when used, can realize more sufficient mixing with raw materials, forms nano high-dispersed molybdenum sulfide through sulfuration, and realizes high-efficiency hydrogenation refining of oil products through the joint action of hydrogen and sulfur, while reducing the sulfur, oxygen and metal residues in the product oil.

The invention discloses a liquid suspended amino acid selenium-rich foliar fertilizer and a preparation method thereof, the liquid suspended amino acid selenium-rich foliar fertilizer comprises the following raw materials by weight: 30-32 parts of amino acid, 14-15 parts of selenium fertilizer, 6-8 parts of calcium fertilizer, 5-7 parts of magnesium fertilizer, 2-4 parts of boron fertilizer, 1-2 parts of EDTA-Zn, 1-2 parts of EDTA-Fe, 1-2 parts of EDTA-Cu, 1-2 parts of EDTA-Mo, 0-0.1 part of a plant growth regulator, and 0-1 part of a wetting dispersant. 0-2 parts of an emulsifier, 0-1 part of a thickening agent and 31-34 parts of water. The foliar fertilizer disclosed by the invention is good in suspension property, uniform and stable, not only contains a certain amount of selenium element, but also contains a certain amount of amino acid and trace elements, and has certain effects on producing selenium-rich agricultural products and improving crop quality. The suspended amino acid leaf fertilizer is low in production cost, convenient to transport, simple to operate, free of pollution in the production process and environmentally friendly.

The utility model discloses a kind of wet dust removal devices for steel smelting stew slag smoke dust, including dust removal tower and wet electric dust collector, the inside of dust removal tower is spaced apart and is provided with multiple isolation ring plates, the inboard of isolation ring plate is fixed with water tank, the upper portion of water tank side wall is evenly distributed with multiple L-shaped ventilation pipes, the end of L-shaped ventilation pipe is stretched into the lower part of water tank downwards, the bottom of water tank is provided with drain pipe, the lower part of dust removal tower is provided with air inlet pipe, the end of air inlet pipe is bent downwards after being stretched into dust removal tower, the upper portion of dust removal tower is provided with center water pipe, multiple layers of spray pipes are spaced apart and are provided on center water pipe, the top of dust removal tower is communicated with wet electric dust collector by exhaust pipe. Above all, the utility model has the advantages of high dust removal efficiency, good dust removal effect, safety and environmental protection.

The present invention discloses a medical suture heat curing automatic cutting machine, which belongs to the technical field of textile machinery. The medical suture heat curing automatic cutting machine includes a frame, a tension wire release device, a heating curing device, a traction length fixing device and a cutting device. The tension wire release device is installed on one side of the frame, and the tension wire release device includes a wire drum; the heating curing device includes a heating block; the traction length fixing device includes a linear module, a movable finger cylinder and a fixed finger cylinder, and the linear module is slidably connected to the movable finger cylinder; the cutting device includes a blade. The present invention can accurately cut out sutures of the same length, and the cutting process does not require manual participation, will not cause suture contamination, saves a lot of labor costs, can realize continuous automatic cutting, and is highly efficient; the suture fracture after cutting will harden, will not be loose and unable to thread, and there is no need to cut off the loose sutures in the later stage, threading is convenient, and waste of sutures is avoided.

The present invention belongs to the technical field of fresh refrigerated transportation, and specifically is a breathable and waterproof fresh refrigerated transportation box, comprising an inner box body, an outer box body and a breathable component; two sets of breathable components are arranged, one set is arranged at the top of the inner box body, and the other set is arranged at the bottom of the inner box body; the breathable component at the top of the inner box body is in a ventilated state, and the breathable component at the bottom of the inner box body is in a closed state; the present invention arranges two sets of breathable components, specifically, arranges the breathable component at the top of the inner box body in a ventilated state, and the breathable component at the bottom of the inner box body in a closed state, thereby enabling water for preservation to be added to the inner box body, thereby ensuring that the fresh products in the inner box body are placed in a ventilated and moisturizing preservation environment for transportation; at the same time, it can ensure that the water in the transport box will not spill in a bumpy carriage or during transportation, thereby ensuring that the environment will not be polluted during transportation.

The present application relates to the separation of fermentation liquor, and discloses a method for extracting succinic acid from malic acid fermentation liquor. The method comprises the following steps: (1) solid-liquid separation I of the fermentation liquor, and collection of liquid phase I; (2) mixing and standing of the liquid phase I, polyaluminum chloride, polyacrylamide and diatomite, and then solid-liquid separation II and concentration, and collection of concentrated liquid; (3) pH adjustment of the concentrated liquid to 1-3, and then obtaining acidified liquid; (4) solid-liquid separation III of the acidified liquid, and then obtaining liquid phase II; (5) decolorization and separation of the liquid phase II, and then obtaining succinic acid. The method is free of organic pollution, environment-friendly, and can effectively improve the purity and yield of the prepared succinic acid.

This invention relates to the field of microbial technology, specifically to a strain of *Bacillus laterosporus* and its applications. The *Bacillus laterosporus* provided by this invention (… Brevibacillus laterosporus HNBR05-1 is deposited at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC No. 25886. *Bacillus laterosporus* HNBR05-1 exhibits highly effective inhibition of plant pathogens, demonstrating dual efficacy against plant diseases such as brown spot and bacterial leaf spot, with high control efficacy. It shows promising application prospects in plant disease control and lays the foundation for the development of highly effective biocontrol agents.

The present invention relates to the technical field of tree maintenance, specifically a bottle-inserted self-flowing dry-injection bottle for preventing resin back-sucking, comprising a bottle body and a medicine injection nozzle, wherein the bottle body comprises a bottle body and a bottle cap, and the bottle cap is detachably connected to the bottle mouth of the bottle body; the medicine injection nozzle is a slender conical tube that is small at the top and large at the bottom, with openings at both ends of the conical tube, and through holes are symmetrically opened on both sides of the medicine injection nozzle; the lower end of the medicine injection nozzle is detachably mounted on the medicine injection port of the bottle cap. The bottle-inserted self-flowing dry-injection bottle for preventing resin back-sucking provided by the present invention can not only prevent the problem of bottle body expansion and cracking caused by resin back-sucking, but also enable the dry-injection agent to achieve precise application of the medicine to improve the prevention and control efficiency of forest pests and diseases, without causing waste of medicines and environmental pollution, and is suitable for further promotion and application.