54results about How to "Huge potential economic benefits" patented technology

The invention discloses a graded extraction method for subcomponents of fulvic acid in soil. The extraction method comprises the following steps: step a, pretreatment of a soil sample; step b, graded extraction of organic matters in soil; step c, preparation of crude graded subcomponents of fulvic acid; step d, concentration of the crude graded subcomponents of fulvic acid; and step e, purification of subcomponent samples of fulvic acid. Thus, the method provided by the invention can extract fulvic acid subcomponent solutions by using different solution continuous extraction technologies and enrich the fulvic acid subcomponent solutions extracted in grades by using macroporous resin, and thus, graded fulvic acid subcomponent solid samples are obtained.

The invention discloses a method for continuously repairing a heavy metal in soil by using a chelating agent, which is characterized by comprising the following steps of: planting ramie into soil to be treated; after the survival of the plant, adding a coated EDTA chelating agent accounting for 0.05 to 0.5 percent of the weight of the soil into the soil; and continuously and periodically harvesting the overground part of the plant so that the underground part can grow continuously to be harvested circularly. The diameter of the EDTA granules of the coated EDTA chelating agent is 0.5 to 2mm; and the coating is an inorganic layer with the thickness of 0.25 to 0.35mm or an organic layer with the thickness of 0.30 to 0.40mm. In the repairing method, the coated EDTA chelating agent with proper coating thickness is selected to enable the releasing efficiency to be organically matched with the growth period of the ramie, enhance the repairing capacity of the soil and reduce the environmental risk of the chelating agent.

The invention belongs to the technical field of new materials for a lithium ion battery, and particularly relates to a preparation method of a silicon-based / graphene composite. The preparation method comprises the following steps of: taking a pole of the silicon-based / graphene composite as a working electrode and the pole of a lithium source-containing material as a counter electrode, assembling a battery together with propylene carbonate and lithium salt-containing electrolyte and a diaphragm; charging and discharging the battery to co-embed lithium ions and carbonate propylene ester into graphite layers under the action of electric field, so as to enable the graphite layers to be stripped; dismantling the battery, placing a lithium-embedded silicon-based / graphene composite precursor into dimethyl carbonate solution for soaking, and vaccumizing and drying; and conducting ultrasonic cleaning and lithium removal in diluted hydrochloric acid, vacuumizing and filtering, drying, and burning under inert gas atmosphere. Compared with the prior art, the preparation method is simple and controllable in procedures, low in cost, safe and environment-friendly and incapable of causing environment and health security risk; and a great deal of hydrogen can also be collected in the preparation process of the composite, so that economic benefits are obvious.

A process for eliminating the pollution of Pb, Zn and Cd to said and water by use of arabis paniculata features that the Arabis paniculata is planted in the polluted sol or water for absorbing Pb, Zn and Cd. When their concentrations in the plant reach a certain value, the plant on the ground is cut out and its root is retained for growing the plant no the ground and further cutting it out.

The invention belongs to the technical field of biomedicine, in particular relates to an anhydrous dextrose drying device and a drying process. The technical scheme is that the anhydrous dextrose drying device comprises a fluidized bed and a back mixing bed. The fluidized bed comprises a first-section fluidized bed and a second-section fluidized bed. The lower portion of the back mixing bed is connected with an air inlet pipe I through an air feeder I, a heater I is arranged on the air inlet pipe I, an air inlet pipe II and an air inlet pipe III are respectively connected with the first-section fluidized bed, an air inlet pipe IV and an air inlet pipe V are respectively connected with the second-section fluidized bed, an air feeder II is respectively connected with the air inlet pipe II, the air inlet pipe III, the air inlet pipe IV and the air inlet pipe V through a heat exchanger II, so that the phenomena that finished products are apt to change colors and blocked caused by high temperature of materials caused by continuous drying can be avoided.

A method for controlling the pollution of As to soil and water features that the pteridophytes able to collect As, such as Pteris oshimensis, P. fauriei, P. aspericaulis and P. multifida, are planted in the soil or water to be controlled for absorbing the As from soil and water, and their plant stems on the ground are periodically harvested.

The invention discloses an eddy current detection device for automobile galvanized sheet plating thickness and a method. The eddy current detection device disclosed by the invention comprises an eddy current probe, an impedance analyzer, a clamp used for fixing a member to be tested and a computer; the eddy current probe is placed on the surface of the member to be tested and is used for generating a sine excitation signal through the impedance analyzer, driving the eddy current probe to generate an excitation magnetic field and generating a vortex magnetic field inside the member to be tested; the probe converts the magnetic field change caused by the thickness change to an electric signal which is returned to the impedance analyzer to obtain an inductance according to the various vortex magnetic fields generated by the members to be tested with various plating thickness; the inductance is processed by a galvanized layer thickness model established by a computer to obtain the thickness of the galvanized layer of the member to be tested; the invention also discloses a detection method using the same. The invention chooses the inductance as the characteristic parameter for measuring the thickness, improves the range and the sensitivity of measuring the thickness, realizes the fast and accurate on-line detection for the thickness of the plating thickness of the galvanized sheet and has a substantial and potential economic benefit.

The invention discloses a preparation method and application of anhydrous calcium terephthalate whiskers. The preparation method of anhydrous calcium terephthalate whiskers includes the steps of subjecting ammonium terephthalate solution and calcium hydroxide slurry to reaction to obtain a precursor, and continuing the reaction at 120-150 DEG C in a high-pressure kettle for 1-6 h to obtain the anhydrous calcium terephthalate whiskers. The preparation method is green, low in cost and high in cleanliness level. The production process is free of three wastes, and the obtained anhydrous calcium terephthalate whiskers have large length-diameter ratio, high crystal strength and significant reinforcement effect. During the preparation of the calcium terephthalate whiskers from ammonium terephthalate and calcium hydroxide, isolated ammonia water may continue to dissolve terephthalic acid for next cycle or remaining water is also suitable for reuse after ammonia gas is recycled by means of ammonia steaming, and the whole process is free of three wastes and belongs to clean production.

The invention relates to a method for promoting plants to restore soil hardening through utilizing Acetobacter xylinum, and belongs to the technical field of the agriculture. The method is characterized in that the method comprises the following steps: carrying out expanding culture of Acetobacter xylinum strains to prepare a bacterial liquid, wherein the concentration of the bacterial liquid, represented by OD600, is not less than 0.8 (the OD600 is generally between 0.8 and 1.5); controlling the pH value of soil at 5.5-7; and processing the soil restoration plants by the bacterial liquid. The method has the following beneficial effects: the Acetobacter xylinum selected in the invention can promote the growth of the plants and improve the biomass of the plants through the symbiotic relation between rhizosphere bacteria and the plants, so the rich water absorption of the plants and the hardened soil restoration effect are improved, and potential economic effects are apparent; and the used strains improve present green in-situ restoration effects, and gained plant overground parts can generate economic effects and also can improve the soil degeneration and the productivity decrease caused by the soil pollution of fertilizers and the like.

The invention relates to a method for producing bait for fish. The method comprises: filtrating and collecting filamentous fungus used for producing polyunsaturated fatty acid after fermentation, adding compound nutritional ingredients, stirring uniformly, and making into microparticle or microcapsule baits with routine method. The inventive method has the advantages of no restriction of the environment and season, short production cycle, low cost, simple production process, no addition of fat, stable property, and convenience for storage and carrying. The mycelium after lyophilizing has better absorbability and adherence to nutritional ingredients, and is in favor of water purification.

In the invention, pteris multifida with super enriched arsenic is used to absorb and activate arsenic in polluted soil or water and to transport or transter arsenic upward to above the ground until that proper living things quantity is formed on upersection of the ground, then to reap the section above the ground on a fixed date and retain the section under the ground, to stub 3-5cm when reaping to realize continuous collecting. By the invention, a continuous collecting mode is bilt to continuous transfer large guantity of arsenic in polluted soil or water until that content of arsenic achieving environment safe standard.

The invention discloses a clean preparation method of submicron calcium terephthalate. The preparation method comprises the following steps: a calcium hydroxide slurry with a multihole nozzle is introduced from the upper end, and an ammonium terephthalate solution with a dispersion modifier is introduced through the side surface of a high-speed centrifugal atomizer; the calcium hydroxide slurry and ammonium terephthalate solution are sufficiently mixed in a mixing chamber of a jet reactor, and enter a closed tank reactor via a diffuser chamber; and the materials are heated to the specified temperature while stirring to continue react for some time, thereby obtaining the calcium terephthalate. The method is green and environment-friendly, has high clean degree, and does not generate three wastes in the preparation process; and the obtained product is submicron particles. In the submicron calcium terephthalate preparation process, the separated ammonia water can continue dissolving terephthalic acid to enter the next circulation, or after ammonia gas is recovered by an ammonia evaporation technique, the residual water can be recycled, so the whole process does not generate three wastes and belongs to clean production.

The invention relates to a flue gas wet-type oxidation denitration and resource utilization method which comprises the following steps of: leading the glue gas containing NOX into an acid ferrous iron solution; absorbing NOX at 0-100 DEG C to generate a dark brown mixed solution consisting of nitroso ferrite, nitric acid and nitrous acid to finally realize the flue gas denitration processing; and adding an oxidant into the denitration absorption liquid so that the nitrogen dioxide is discharged and dissolved in water, ammonia water, potassium hydroxide or sodium hydroxide solution to generate nitric acid, ammonium nitrate, potassium nitrate, sodium nitrate and the like so as to realize resource utilization.

The invention relates to micro-fine particle nano-bubble flotation method and system. The fine particle nano-bubble flotation system comprises a flotation machine, a flotation tank and a stirrer, andis characterized in that the lower parts of the front wall and the rear wall of the flotation tank are communicated with an ore pulp nano-bubble inflation system, and the system is also externally connected with an air compressor; the system comprises a circulating pump, a nano-bubble generator, a pipeline and a valve, a feed port of the circulating pump is communicated with the lower part of therear wall of the flotation tank, a discharge port of the circulating pump is connected with two pipelines, one pipeline is provided with a valve, the other pipeline is provided with a valve and a nano-bubble generator, and the tail ends of the two pipelines are combined into one pipeline, which is communicated with the lower part of the front wall of the flotation tank to form a closed loop; the air compressor is connected with a pipeline positioned between the valve and the nano-bubble generator through an air conveying pipeline; the method has the advantages that 1) nano bubbles are used forultrafine mineral flotation to open up a new way, and 2) hematite flotation contrast test results show that under the same iron ore concentrate grade condition, the iron recovery rate of the iron oreconcentrate can be increased by at most 18%, and the flotation time is shortened by more than 2 / 3.

The invention provides an energy harvesting power generator for a marine riser. The energy harvesting power generator for the marine riser comprises a flexible film type energy harvesting power supply structure, wherein the marine riser is externally wrapped in the flexible film type energy harvesting power supply structure, and multiple piezoelectric units are packaged in the flexible film type energy harvesting power supply structure. Enough electrical energy for a detection system of a marine pipeline and a detection data transmission system can be completely provided through electrical energy generated by the energy harvesting power generator, an electrical energy storage device is further comprised, when the generated electrical energy is in surplus, extra electrical energy can be stored, and continuous system power supply can be guaranteed. According to the energy harvesting power generator, wireless pipeline detection in the special marine environment and wireless detection data transmission can be directly supported, and the energy harvesting power generator represents important innovation of the underwater structure detection technology.

The invention discloses face-centred cubic structure Ti3Si nano particles and a preparation method thereof. In the method, titanium powder and silicon powder are used as main materials, argon is used as protective gas, alcohol is used as liquid medium for ball milling, a planetary high-energy ball mill and a vibration drier are used as main production devices, and a mechanical alloying method is used to prepare the face-centred cubic structure Ti3Si nano particles. The method has the advantages of simple technology, easily-controlled parameters, short production cycle, low energy consumption and no environment pollution, and is fit for industrialization production. The face-centred cubic structure Ti3Si nano particle has the advantages of small diameter of 15-120nm, low density, high strength, high temperature resistance, oxidation resistance, good electrical conductivity and heat conduction, and the like, and has wide application prospect and huge potential economic benefits in engineering technology, space technology, national defense industry, micro-electronics and other fields.

The invention discloses a tunneling waste concrete, which belongs to the technical field of concrete. Tunneling waste rock coarse aggregate with the particle size of between 5 and 31.5 millimeters after crushing and screening is adopted to replace broken stones; and after the tunneling waste rock coarse aggregate is mixed with the cement, medium sand and water in proportion, the mixture is then conveyed to a stirring machine to be stirred evenly to obtain the concrete. The obtained concrete has higher strength than that prepared from the broken stones, the preparation process is simple without adding new equipment, and the cost is low to reduce the construction cost effectively and solve the problem that the tunneling waste rock is not used reasonably for a long time, so that the tunneling waste rock is changed into valuable, accords with the national industrial policies on energy conservation, emission reduction and environmental protection, and is beneficial for popularization and application.

The invention relates to a flue gas wet-type reduction denitration and harmless processing method which comprises the following steps of: leading the flue gas containing NOX into an acid ferrous iron solution; absorbing NOX at 0-100 DEG C to generate dark brown absorption liquid of nitroso ferrite, nitric acid and nitrous acid to finally realize the flue gas denitration processing; and adding a reducing agent and a catalyst into the absorption liquid after denitration so that the absorbed nitroso group is transformed into nitrogen to realize harmless processing.

The invention discloses a traditional Chinese medicine composition for preventing or treating ulcerative colitis canceration. The traditional Chinese medicine composition is prepared from the following crude drugs in parts by weight: 10-210 parts of gecko, 10-210 parts of earthworm, 10-210 parts of pill bug and 5-150 parts of honeybee pupae. The honeybee pupae can be replaced with honeycomb. The invention also discloses a pharmaceutic preparation for preventing or treating ulcerative colitis canceration and a preparation method thereof, and the dosage forms of the pharmaceutic preparation include pills, capsules, tablets, powder, granules, oral liquid, clysis fluid and decoction agent. By adopting the traditional Chinese medicine composition, the clinical problem of ulcerative colitis canceration is solved, the occurrence rate of ulcerative colitis canceration is reduced, the side effect of the drug is small, and the financial burden of the patient is small. The traditional Chinese medicine composition can interfere the occurrence of ulcerative colitis canceration, and plays an important role in colon tissue imflammation-cancer conversion, and the treatment effect is superior to that of a mesalazine group, and is obviously superior to that of a rehabilitation new liquid group.

The invention discloses an expandable graphite preparation device and an electrochemical intercalation method thereof, and belongs to the field of crystalline flake graphite electrochemical intercalation. The device comprises a wrapping pocket, an electrode, a direct current voltage-stabilizing and current-stabilizing power supply, a quick plug connector, a cross beam, an electrolytic cell, a circulating cooling device, a thermocouple, a first servo motor, a support frame and a second servo motor. The method comprises the steps of preparation of a chemical electrolyte, bag filling of natural crystalline flake graphite, electrode assembly and electrochemical intercalation preparation, electrochemical intercalation treatment, and treatment of an intercalation compound. According to the method, natural crystalline flake graphite can be efficiently intercalated to prepare expandable graphite, the prepared expandable graphite does not generate smoke and irritant gas in the microwave expansion and high-temperature expansion processes, and the expansion ratio can reach 200-300 mg / L. The problems of production safety and environmental pollution related to expandable graphite preparation can be solved from the source, large-scale preparation and engineering application of expandable graphite can be actively promoted, and the market application prospect is wide.

The invention provides a novel paper leading tool close to a vat. The tool comprises a hollow rod body, wherein a hand valve and a hollow handle are arranged at the lower end of the hollow rod body; the lower end of the hollow handle is communicated with a compressed air source; a cambered hollow spray nozzle body is arranged at the upper end of the hollow rod body; a nozzle of the hollow spray nozzle body is duckbilled; a hook is arranged at the outer side of the hollow rod body; and the hollow rod body, the hollow spray nozzle body, the hand valve and the hollow handle are all made of stainless steel. The tool has the following beneficial effects: the paper leading efficiency close to the vat can be obviously improved, the broke amount close to the vat is greatly reduced, the productionconsumption is reduced and the potential economic benefits are obvious; and the tool is convenient to use, the potential safety hazards are eliminated and the evaluation given by the operators is good.

A method for in-situ durable restoration of the water used to culture aquatic animals features use of a novel biofilm carrier AquaMats, which has high adsorptivity and can provide a better growth and reproduction environment to the useful microbes for absorbing and using the organic pollutents in water and converting them to inorganic pollutents.

A method for extracting zinc from sludge continuously and repairing zinc pollution in soil by Mirabilis jalapa L. is carried out by taking Mirabilis jalapa L. for enriching Zinc heavy metal as material, absorbing while activating zinc in polluted soil, transferring upwardly above ground, forming upper part of Mirabilis jalapa L. into a certain of biomass live weight, reaping once a year, maintaining root tuber underground, keeping stubble for 2-3 joints, sprouting while growing in the next year and extracting continuously. It's efficient, convenient, safe and standard.

The invention provides cement-based multi-polymer dry mixed powder, a preparation method and a construction process thereof. The dry mixed powder comprises the following components in percentage by weight: 25 to 30 percent of No.42.5 cement, 20 to 25 percent of No.32.5 cement, 25 to 35 percent of triple superphosphate powder, 5 to 10 percent of gypsum powder, 1 to 3 percent of dispersible latex powder, 3 to 3.5 percent of starch ether, 1 to 3 percent of bentonite thixotropic lubricant, 1.5 to 2.0 percent of organic silicon, 0.15 to 0.20 percent of water repellent agent, 0.20 to 0.30 percent of methylcellulose and 0.30 to 0.60 percent of cellulose fiber. The preparation method for the dry mixed powder comprises the following steps: mixing the No.42.5 cement, No.32.5 cement, triple superphosphate powder, gypsum powder, dispersible latex powder, starch ether, bentonite thixotropic lubricant and organic silicon evenly according to the proportion, then adding a mixture of the water repellent agent, the methylcellulose and the cellulose fiber into the mixed substances, and stirring the mixture evenly to form the cement-based multi-polymer dry mixed powder. The construction process for the dry mixed powder comprises the following steps: mixing and stirring the dry mixed powder and sand evenly, adding proper amount of water into the mixture, and stirring the mixture to form a colloid substance.