34results about How to "No environmental hazard" patented technology

The invention provides a preparation method of anti-electrostatic fabric and relates to the technical field of textile materials. The preparation method of the anti-electrostatic fabric comprises the following steps: preparing raw materials: S1, preparing electroconductive aramid fiber and selecting high-strength polyester fiber and cotton fiber; S2, weaving fabric: weaving the fabric by a plane weave structure of warp yarns and weft yarns, wherein the warp yarns adopt electroconductive fibers and high-strength polyester filament yarns which are arranged according to the ratio of 1:4, and the weft yarns adopt mixed weft yarns comprising electroconductive fibers and the cotton fibers according to the ratio of 1:1; S3, performing decontamination treatment: preparing decontamination liquid, soaking the fabric obtained in the step S2 into the decontamination liquid, dipping at 30 to 35 DEG C for 20 to 25 minutes and then washing with water; S4, performing anti-electrostatic treatment: preparing anti-electrostatic treatment liquid, soaking the fabric washed with water in the step S3 into the anti-electrostatic treatment liquid, dipping for twice and rolling for twice, wherein the rolling allowance is 80 percent; and drying and shaping: drying the fabric subjected to anti-electrostatic treatment in the step S4 into a drying box, and performing tenter setting after drying to obtain the anti-electrostatic fabric. The fabric prepared by the invention has high anti-electrostatic performance.

The invention relates to a water treatment method, and specifically relates to a high-performance photocatalyst for water treatment and a preparation method thereof. The catalyst is prepared by constructing an Ag-BiVO4 metal-semiconductor heterojunction on the monoclinic bismuth vanadate crystal face {010}, constructing a Co3O4-BiVO4<p-n> heterojunction on the monoclinic bismuth vanadate crystal face {110}, or constructing an Ag-BiVO4 metal-semiconductor heterojunction and a Co3O4-BiVO4<p-n> heterojunction on the monoclinic bismuth vanadate crystal face {010} and {110} respectively. The operation is simple and practical, no expensive equipment is required, and the reagents are environment-friendly.

The invention discloses biopesticide containing natural fungus and preventing and treating monochamus alternatus in a high-efficiency manner and application and belongs to the technical field of biopesticide. The biopesticide is characterized by comprising the following substances in percentage by weight: 20-40% of natural fungus, 50-76% of nutrient solution and 2-15% of a stabilizing agent. The biopesticide and the application have the advantages that the natural fungus for preventing and treating the monochamus alternates is adopted as the material, and is dispersed in nutrient solution which can enable the fungus to retain the activity for long time, then a certain amount of stabilizing agent is added to ensure the stability of the preparation, and the prepared preparation has good effect in preventing and treating the monochamus alternatus, so that the prevention and the treatment to pine wood nematode can be achieved by controlling the monochamus alternatus, and the occurrence of the pine wood nematode disease can be reduced; and the processing method is simple and convenient, the materials are sufficient, the storage and the transportation are safe, the cost is low and no environmental hazard is caused.

The invention discloses a method for remediating cadmium-contaminated soil by combining biochar and plants. The method comprises the following steps: (1) treating biological straw to prepare biochar;(2) performing physical treatment on soil; (3) carrying out chemical treatment on the physically treated soil to obtain cadmium-contaminated soil; (4) adding the biochar into the cadmium-contaminatedsoil, uniformly mixing, and then planting ryegrass; and (5) in the ryegrass planting period, taking soil samples at intervals of 7 days for cadmium content determination, harvesting ryegrass 45 days after planting, and determining the cadmium content of each soil sample and the cadmium content of stems, leaves and roots of harvested ryegrass. The biochar prepared by the method is loose and porous,has tubular channels, large specific surface area and great adsorption capacity, is beneficial to growth and propagation of ryegrass, enhances the enrichment effect of ryegrass, better adsorbs heavymetals in soil, does not generate secondary pollution, and has a wide application prospect.

The invention provides a modification method for nano calcium peroxide with controllable particle size. The modification method comprises the following steps: adding a certain amount of a calcium salt to dispersing agent solutions of different concentrations; mixing to prepare a reaction base solution under an ultrasonic condition; slowly dripping hydrogen peroxide solution with a certain concentration to the reaction base solution at a certain rate, wherein the reaction base solution is stirred continuously; after the dripping is completed, allowing the reaction to continue for 10-20 min; after the complete reaction, the mixed solution is centrifuged to obtain precipitate; washing repeatedly with deionized water and absolute ethyl alcohol; placing in a vacuum drying box for drying for 24-48 h to obtain the nano calcium peroxide with different particle sizes. The modification method has the benefits that the process is simple; the reaction conditions are mild; the reaction time is short; the added dispersing agent in the reaction is non-toxic and harmless, low in cost and easy to obtain; no pollutants is generated in the production process; the prepared product is high in performance; nano calcium peroxide of different particle sizes can be prepared under different reaction conditions, and the average particle size is 10-200 nm. The invention provides a novel synthetic method for the nano calcium peroxide for groundwater remediation, and the particle size of the prepared calcium peroxide can be controlled.

The invention discloses a method for the preparing pitcher plant-imitating super-lubricating surface through an electric-arc spraying technology. Through the electric-arc spraying technology, an aluminum coating is built on the surface of a base body, then low-surface-energy substance modification and lubricating oil covering are sequentially conducted, and then the pitcher plant-imitating super-lubricating surface is obtained. The preparation method of the pitcher plant-imitating super-lubricating surface does not have special requirements for the base body, simple in preparation technique, good in repeatability and suitable for large-area and industrialized application.

The invention relates to a solar-assisted absorption refrigeration device for a refrigerated truck. The solar-assisted absorption refrigeration device comprises a first heat supply system, a second heat supply system and a refrigeration system; the refrigeration system is connected with the first heat supply system and the second heat supply system through wires and pipelines correspondingly; the first heat supply system comprises a solar cell panel, a controller and a storage battery; the second heat supply system comprises an engine water tank, a circulating water pump and an adjusting valve; and the refrigeration system comprises a generator, a condenser, a heat exchanger, an evaporator, an absorber, an expansion valve, a solution pump and a throttling valve. The bottom of the generator is provided with a heater band. According to the solar-assisted absorption refrigeration device for the refrigerated truck, refrigeration cycle in a compartment of the refrigerated truck is completed by reasonably using engine waste heat and the solar power generation technology, and the refrigeration device is simple in structure, easy to achieve, environmentally friendly and free of pollution; in addition, the solar-assisted absorption refrigeration device still can refrigerate the interior of the compartment of the refrigerated truck when the refrigerated truck stops in the halfway or stops at night, the delivery range of the refrigerated truck is expanded, the limitation that the refrigerated truck needs to be connected with an external power source when stopping is eliminated, and the solar-assisted absorption refrigeration device can refrigerate the compartment all the time.

The invention discloses a method for preparing a pitcher plant imitated super-lubricative surface by using a flame spraying technology. A nano ceramic coating is constructed on the surface of a substrate by using a flame spraying technology, and then the nano ceramic coating is sequentially modified by a low-surface-energy substance and covered with lubricating oil to obtain the pitcher plant imitated super-lubricative surface. The invention provides a method for preparing a pitcher plant imitated super-lubricative surface, which is convenient and simple, has good repeatability and is suitablefor large-area preparation and industrial application. The prepared pitcher plant imitated super-lubricative surface can effectively prevent the existence of water drops on the surface of a material.

The invention relates to super hydrophobic surface preparation, in particular to a preparation method for a copper based super hydrophobic surface with a condensation liquid droplet self-bounce characteristic. According to the preparation method for the copper based super hydrophobic surface with the condensation liquid droplet self-bounce characteristic, a copper base body is subjected to electrodeposition treatment in an electrolyte solution containing nickel chloride, boric acid and ammonium chloride, then the copper base body is placed into a closed container containing perfluorinated silane for heating modification, and the super hydrophobic surface with the condensation liquid droplet self-bounce characteristic can be obtained on the copper base body after cooling. The preparation method for the copper based super hydrophobic surface with the condensation liquid droplet self-bounce characteristic is simple and easy to operate, expensive equipment is not needed, used reagents haveno environmental hazard, and the prepared super hydrophobic surface is expected to be applied in the fields of metal corrosion prevention, frost prevention and ice resistance, enhanced condensation heat transfer, self-cleaning and the like.

The invention discloses a method for realizing comprehensive recovery of valuable elements in an aluminum-based petroleum refining catalyst by utilizing reducing gas. The method comprises the following steps that spent catalyst is preatreated by adopting a reduction heat treatment process, and the three kinds of valuable metal elements in the spent catalyst generate an aluminum salt capable of being dissolved in water, metal elementary substance nickel cobalt with magnetism and acid solubility, and acid-resistant and alkali-resistant rare metal low-valence oxide, a simple substance or a carbide correspondingly, so that the property difference of the valuable elements compound to be recycled is expanded; the aluminum oxide is extracted by using an aqueous solution or an alkali solution, thenickel and cobalt are extracted through magnetic separation or acid solution leaching, and the rare metals are enriched and recycled in the leaching residues. The method has the advantages that the process is simple and reasonable, the used reducing agent is economic and environment-friendly, efficient separation and comprehensive recovery of the valuable elements in the spent catalyst can be realized at the same time, and the economic benefits are remarkable and the like.

The invention discloses a method for preparing a pitcher plant imitated super-lubricative surface by using a flame spraying technology. A nano ceramic coating is constructed on the surface of a substrate by using a flame spraying technology, and then the nano ceramic coating is sequentially modified by a low-surface-energy substance and covered with lubricating oil to obtain the pitcher plant imitated super-lubricative surface. The invention provides a method for preparing a pitcher plant imitated super-lubricative surface, which is convenient and simple, has good repeatability and is suitablefor large-area preparation and industrial application. The prepared pitcher plant imitated super-lubricative surface can effectively prevent the existence of water drops on the surface of a material.

The invention provides a merchant ship without ballast water. The overall layout design is applicable to an unmanned ship in the further. The merchant ship without ballast water is an unmanned oil ship without ballast water provided with a deep V-shaped ship body. Due to the fact that a power system of the ship is arranged on the tail, no seaman exits in the ship and no ballast water is used for adjusting the floating states of the ship in different working stations, the ship type is applicable to the unmanned ship, the problem that tail inclination is too large in the empty-ship departure state of the ship is solved, and it can be also ensured that the ship has the good floating state in the full-load departure working condition through computing and checking.

The invention provides a preparation method and application of a super-hydrophobic surface based on a liquid drop self-bounce effect. The method comprises the following steps of S1, preprocessing a metal substrate; S2, carrying out oxidation at high temperature, and constructing a rough surface on the metal substrate; S3, modifying the structure surface with the roughness obtained in the step S2 through utilization of a low surface energy substance, thereby preparing the super-hydrophobic surface with the liquid drop self-bounce effect. According to the method, the formation of surface fog drops is inhibited through utilization of the drop self-bounce effect of the super-hydrophobic surface, the conversion of the fog drops from a partially wet state to a suspended Cassie state is promoted,so the stable existence of an air layer is maintained and the atmospheric corrosion protection performance of the surface is improved. According to the method, the feasibility of the application of the liquid drop self-bounce effect of the super-hydrophobic surface in the protection of atmospheric corrosion caused by fog falling is proved for the first time. The liquid drop self-bounce effect canbe generated spontaneously without external force, so the method is a novel active corrosion protection method. The preparation method is simple and quick. Expensive equipment is not needed. A reagent is harmless to the environment.

The invention discloses a biological pesticide containing natural fungus for efficiently preventing and controlling Alpinia serrata and its application, belonging to the technical field of biological pesticides. It is characterized in that it contains the following substances in percentage by weight: 20-40% of natural bacteria, 50-76% of nutrient solution, and 2-15% of stabilizer. The above-mentioned biological pesticide for efficiently preventing and controlling Alpinia serrata containing natural fungus is made of natural fungus having the activity of preventing and treating Alpinia serrata as raw material, dispersing it in a nutrient solution that can keep the fungus active for a long time, and adding the biopesticide. A certain stabilizer can ensure the stability of the preparation. The prepared preparation has a good effect on the prevention and control of Alpinia serrata. It can control the pine wood nematode and reduce the pine wood nematode disease in the pine forest. It has simple processing method, sufficient raw materials, safe storage and transportation, low cost and no environmental hazards.

The invention discloses a titanium alloy surface anti-fouling composite coating as well as a preparation method and application thereof. The composite coating comprises a titanium dioxide porous layer combined with a titanium alloy surface and a lubricating layer covering the titanium dioxide porous layer, and pores of the titanium dioxide porous layer are filled with lubricating liquid. The composite coating provided by the invention has the characteristics of strong binding force with a base material, good wear resistance and long service life, has strong surface anti-fouling capability, and can prevent biological adhesion.

The invention relates to super-hydrophobic surface preparing, in particular to a preparing method for a zinc-based super-hydrophobic surface with the condensate liquid drop self-bounce character. A cleaned zinc sample is immersed in excessive low-temperature mixed liquid containing zinc salt and strong alkali to be deposited, after being taken out, the zinc sample is immersed in an excessive ethanol solution containing perfluor silane, heating treatment is conducted after the zinc sample is taken out again, and the super-hydrophobic surface with the condensate liquid drop self-bounce charactercan be obtained on the zinc sample after cooling. According to the preparing method, operation is simple and easy to implement, expensive equipment is not needed, and adopted reagents are free of environmental harm. The prepared super-hydrophobic surface can be expected to be applied to the fields of metal corrosion resisting, frost prevention, ice resisting, condensation heat transfer strengthening, self-cleaning and the like.

The present invention provides a method for the manufacture of a lactate biosensing strip for use in the assay of lactate in a sample, said sensor comprising a dry strip sensor of an electrically conducting material having at least: i) an external surface. ii) a screen printed reference electrode and, iii) a screen-printed working electrode.

The invention discloses a method for realizing comprehensive recovery of valuable elements in an aluminum-based petroleum refining catalyst by utilizing reducing gas. The method comprises the following steps that spent catalyst is preatreated by adopting a reduction heat treatment process, and the three kinds of valuable metal elements in the spent catalyst generate an aluminum salt capable of being dissolved in water, metal elementary substance nickel cobalt with magnetism and acid solubility, and acid-resistant and alkali-resistant rare metal low-valence oxide, a simple substance or a carbide correspondingly, so that the property difference of the valuable elements compound to be recycled is expanded; the aluminum oxide is extracted by using an aqueous solution or an alkali solution, thenickel and cobalt are extracted through magnetic separation or acid solution leaching, and the rare metals are enriched and recycled in the leaching residues. The method has the advantages that the process is simple and reasonable, the used reducing agent is economic and environment-friendly, efficient separation and comprehensive recovery of the valuable elements in the spent catalyst can be realized at the same time, and the economic benefits are remarkable and the like.

The invention discloses a synthesizer of imidazolium ionic liquids. The synthesizer comprises a reactor, a collecting bottle, a magnetic stirring heating unit, an imidazole component raw material bottle and a volatile component raw material bottle, wherein the wall of a reactor is provided with a heat transfer interlayer; the reactor is internally provided with a sensor probe a of temperature measuring equipment, the magnetic stirring heating unit is arranged at the bottom of the collecting bottle, and the collecting bottle is internally provided with a sensor probe b of the temperature measuring equipment; the imidazole component raw material bottle is connected with the reactor and is provided with a liquid delivery pump a, and the outlet end of the imidazole component raw material bottle is provided with an atomization device a; and the volatile component raw material bottle is connected with the reactor and is provided with a liquid delivery pump b, and the outlet end of the light-volatile component raw material bottle is provided with an atomization device b. The synthesizer is used for preparing ion liquid used for extracting cellulose from lignocellulose biomass. The synthesizer is simple and easy to implement, the process for preparing an imidazole ion liquid is simple, the processing temperature is low, the condition is gentle, the substances in a system is utilized in a circulating manner, the raw material utilization ratio is improved, and the rapid and efficient synthesis of the ion liquid is realized.

The present invention provides a method for the manufacture of a lactate biosensing strip for use in the assay of lactate in a sample, said sensor comprising a dry strip sensor of an electrically conducting material having at least: i) an external surface. ii) a screen printed reference electrode and, iii) a screen-printed working electrode.

The invention relates to a process for the corrosion-resistance passivation of ferrite stainless steel for packaging vehicle-mounted SCR, which is to perform the surface treatment of a merchant ferrite stainless steel material in passivation solution. The chemical treatment solution comprises 4 to 10 portions of phosphoric acid, 0 to 0.1 portion of nitric acid, 0.5 to 1 portion of acetic acid, 4 to 6 portions of aluminium dihydrogen phosphate, 0.05 to 0.1 portion of chromic nitrate, 0 to 0.01 portion of zinc nitrate and the balance of distilled water, wherein the content of the aluminium dihydrogen phosphate is 50 weight percent. The process can obviously improve the resistances of the stainless steel to the high-temperature chemical corrosion by a urea reducer used by a vehicle-mounted SCR system and the resistance to the high-temperature chemical corrosion by corrosive atmosphere in exhausted gases and can reduce system material cost and prolong system service life after being used in the vehicle-mounted SCR system. The process creates significant economic and social benefits.

The invention discloses a method for recycling a valuable element from an aluminum-based petroleum refining waste catalyst. According to the method, carbon thermal reduction is adopted for pretreatingthe waste catalyst, three kinds of valuable metallic elements in the waste catalyst generate aluminum salt capable of being dissolved in water, metal element nickel and cobalt with magnetism and acidsolubility and metal carbide with acid resistance and alkali resistance, nature difference expansion of valuable element compounds achieves step-by-step extraction of the valuable elements, particularly, the water solution or alkali solution is used for extracting aluminium oxide, through magnetic selection or the acid solution, nickel and cobalt are extracted, and enrichment and recycling of rare metal carbide can be achieved. The method has the advantages that the process is simple and reasonable, the carbon reduction raw material is economic and environment-friendly, meanwhile, efficient separation and comprehensive recycling of valuable elements in the waste catalyst can be achieved, and the economic benefit is obvious.

The invention relates to ultra-hydrophobic membrane layers and particularly relates to a method for preparing the ultra-hydrophobic membrane layer on a surface of metals with a chilli extract. In the method, an alcohol solution of the chilli extract being 10<-3>-10<-1> mol / L in concentration is dropped onto the surface of a copper sample, and then one-step electrolysis is carried out to form a complex film layer on the surface of the copper sample. The method is simple in operation, is free of expensive devices, and enables agents being free of environmental danger. The ultra-hydrophobic membrane layer is expected to be applied in the fields of anti-corrosion, waterproof and self-cleaning of metals and the like.

The invention discloses a flame-retarding smoke inhibitor and a preparation method thereof. The preparation method of the flame-retarding smoke inhibitor includes a step of heating and containing alkylphosphinate, tributyltin and trioctylphosphine oxide shown in formula (I) at 200-300DEG C, wherein in formula (I), R1 is C1-C6 alkyl group or phenyl group; R2 is C1-C6 alkyl group or phenyl group; Mis metal element, n is integer from 1 to 4. The flame-retarding smoke inhibitor can improve its flame retarding performance in application material on the basis of keeping low smoke density of phosphinate, no environmental harm and other advantages; the smoke inhibitor cannot generate fragile matters and reduce the influence on the mechanical performance of a principal material base body; the rawmaterials of the flame-retarding smoke inhibitor is low in price and easy to obtain, so that the flame-retarding smoke inhibitor has high popularization and application value.

The invention relates to a method for preventing and controlling forestry pests. The method comprises the following steps: (a) interplanting forest trees and inductive timbers, wherein the amount ratio of the forest trees to the inductive timbers is equal 10 to (1-2); (b) spraying an expellent onto the trunks of the forest trees in a time period of six o'clock to seven o'clock in the morning frommid-October to mid-November until branches and trunks are sprayed to wet, and repeating the operation every other week; (c) spraying the expellent onto the trunks of the forest trees in a time periodof six o'clock to seven o'clock in the morning from March to April of next year until the branches and the trunks are sprayed to wet, and repeating the operation every other week. The method is good in prevention and control effect, convenient to operate, safe and environmentally friendly.

The invention relates to a construction engineering technology, in particular to a method for connecting a wall body, a frame column and a frame beam of a wall building robot. The traditional technical scheme that steel bars are reserved on the frame columns and the frame beams or the steel bars are planted on the frame columns and the frame beams is not adopted; the construction technology is characterized in that reserved grooves and rectangular reserved holes are formed in the joints of the frame columns, the frame beams and the wall body. And the robot builds the wall bricks into the reserved grooves, and the purpose of meeting the anti-seismic requirement of the building anti-seismic design specification is achieved. The biggest breakthrough of the invention lies in that when the robot builds the wall, the connection construction of the wall, the frame column and the frame beam, especially the connection construction of the top layer wall brick and the frame beam, can be independently completed under the condition of no manual cooperation. The practicability of the wall building robot can be greatly improved, the building cost is reduced, the necessity of manual wall building construction is avoided, and social benefits and economic benefits are obvious.

The invention relates to ultra-hydrophobic membrane layers and particularly relates to a method for preparing the ultra-hydrophobic membrane layer on a surface of metals with a chilli extract. In the method, an alcohol solution of the chilli extract being 10<-3>-10<-1> mol / L in concentration is dropped onto the surface of a copper sample, and then one-step electrolysis is carried out to form a complex film layer on the surface of the copper sample. The method is simple in operation, is free of expensive devices, and enables agents being free of environmental danger. The ultra-hydrophobic membrane layer is expected to be applied in the fields of anti-corrosion, waterproof and self-cleaning of metals and the like.

The invention provides a modification method for nano calcium peroxide with controllable particle size. The modification method comprises the following steps: adding a certain amount of a calcium salt to dispersing agent solutions of different concentrations; mixing to prepare a reaction base solution under an ultrasonic condition; slowly dripping hydrogen peroxide solution with a certain concentration to the reaction base solution at a certain rate, wherein the reaction base solution is stirred continuously; after the dripping is completed, allowing the reaction to continue for 10-20 min; after the complete reaction, the mixed solution is centrifuged to obtain precipitate; washing repeatedly with deionized water and absolute ethyl alcohol; placing in a vacuum drying box for drying for 24-48 h to obtain the nano calcium peroxide with different particle sizes. The modification method has the benefits that the process is simple; the reaction conditions are mild; the reaction time is short; the added dispersing agent in the reaction is non-toxic and harmless, low in cost and easy to obtain; no pollutants is generated in the production process; the prepared product is high in performance; nano calcium peroxide of different particle sizes can be prepared under different reaction conditions, and the average particle size is 10-200 nm. The invention provides a novel synthetic method for the nano calcium peroxide for groundwater remediation, and the particle size of the prepared calcium peroxide can be controlled.