421results about How to "Change nature" patented technology

The invention belongs to the field of detergent compositions, and provides a method for preparing a pesticide-removing fruit and vegetable cleaning agent based on shell powder. The pesticide-removing fruit and vegetable cleaning agent is prepared from natural shell powder as a main raw material, and a natural adjuvant by the steps of preparation of micro/nano shell powder and addition of the natural adjuvant. The pesticide-removing fruit and vegetable cleaning agent is capable of effectively adsorbing and removing harmful residue matters such as pesticides and chemical fertilizers in the fruits and vegetables, not changing the properties of foods, and prolonging the quality guarantee period, and is safe, non-toxic, degradable, and suitable for cleaning of various fruits and vegetables; and the fruits and vegetables can be directly eaten after being cleaned. The pesticide-removing fruit and vegetable cleaning agent has good adsorptive property, bactericidal performance and the like, can play a good adsorption role in pesticide residues on the surfaces of the fruits and vegetables, is free of harm to a human body and the environment, and is capable of overcoming the defects of an existing cleaning agent in the aspects of non-degradation and chemical synthetic substance residue on the surfaces of the fruits and vegetables.

A Fe-based catalyst for the Fischer-Tropsch synthesis contains Re2O3, Fe3O4, La2O3, CuO, K2O and SiO2. It is prepared through using oxidant to oxidize partially the ferrous sulfate to obtain the mixed solution of iron sulfate and ferrous sulfate, mixing with the mixed solution of lanthanum nitrate and copper salt, fast depositing by alkaline compound, washing the deposited slurry, adding potassium silicate-water glass solution, and spray drying.

The present invention is directed to devices and methods in which one or more miniature synthetic jet actuators are integrated with a chemical fluidic sensor (ChemFET) to effect inhalation and exhalation of ambient gas samples and induce small scale mixing at the surface of the sensor. The fluidically integrated jet transports ambient gas or liquid into the jet/sensor assembly through integrated gas or liquid channels, impinges the sample gas or liquid on the sensing element, and finally ejects the sample gas or liquid back into the ambient gas or liquid. The response of the sensor in the presence of the active jet is compared to its response when the jet is inactive. The jet actuator directs entrained ambient gas or liquid toward the active surface of the sensor, and the impingement of sample gas or liquid onto the surface of the sensor results in faster response time. Other embodiments are also claimed and described.

The invention discloses a sparingly soluble active component particle, a particle preparation and a preparation method thereof. The preparation method of the sparingly soluble active component particle comprises the following steps: dissolving sparingly soluble active component and ionic polymer into an alkaline solution or an acidic solution, and then mixing the alkaline solution and acidic solution to change the pH value of solutions so as to precipitate the sparingly soluble active component and ionic polymer from the mixed solution to form particles; and the performance of the sparingly soluble active component particle is improved. According to the preparation method, sparingly soluble active component and ionic polymer are co-precipitated, at the same time, a preparation technology is adopted, and two technologies are tightly combined to prepare the sparingly soluble active component particle preparation. The prepared preparation has the advantages of excellent dissolving-out characteristic, high bioavailability, small individual difference, good stability, and good content uniformity.

The invention relates to the technical field of contaminated soil treatment, in particular to a curing agent for restoring heavy metal contaminated soil. The curing agent comprises the following components in percentage by weight: 25 to 40 percent of cement, 40 to 65 percent of high-adsorbability clay mineral and 10 to 20 percent of quicklime. The curing agent has the advantages of no risk of secondary pollution when heavy metal ions are fixed by the high-adsorbability clay mineral and no obvious change of original soil property. The components of the high-adsorbability clay mineral are close to those of the original powdered clay, so great damage to a soil structure by the cement and the quicklime is avoided. Therefore, the curing agent also has the advantages of obvious effect of restoring heavy metal plane source contaminated agricultural land and good social, economic and environmental benefits.

The sludge dewatering chemical amendment is iron salt, calcium salt and/or calcium oxide, and during dewatering sludge, the added amount of iron salt is 0.2-1.5 wt% of sludge and that of calcium salt and/or calcium oxide is 1-4.5 wt%. The sludge dewatering process includes the following steps: 1. amending sludge through adding water, adding iron salt in 0.2-1.5 wt%, stirring for 1-6 min, adding calcium salt and/or calcium oxide in 1-4.5 wt%, stirring for 2-8 min; and 2. pressurizing to dewater sludge at 1.0-2.0 MPa for 45-90 to water content in sludge of 50-60 %. The present invention has lowcost and high dewatering effect.

The invention discloses a thermoplastic chlorinated polyethylene cable material. The thermoplastic chlorinated polyethylene cable material comprises the following components according to weight ratio: 100 parts of chlorinated polyethylene, 50-200 parts of reinforced modifier, 10-60 parts of plasticizer, 50-300 parts of filler, 2-4 parts of dynamic cross-linking agent, 10-15 parts of sulfurized acid-acceptor, 0-5 parts of pigment and 8-12 parts of auxiliary agent. The preparation method comprises the following steps of: A, adding the chlorinated polyethylene, the plasticizer, the filler, the sulfurized acid-acceptor, the pigment and the auxiliary agent into an electro thermal internal mixer, mixing for 15 min at 145-180 DEG C to uniformly mix the materials, then adding the dynamic cross-linking agent to react for 5-10 min, discharging, cooling and pulverizing and cutting into particles to obtain the dynamic cross-linking chlorinated polyethylene; and B, adding the dynamic cross-linking chlorinated polyethylene obtained in the above step and the strengthened modifier into a stirring mixer, uniformly mixing, extruding and pelletizing at 175-195 DEG C by using a single-screw extrusion pelletizer and cooling to obtain a finished product. The product has excellent low temperature tolerance performance, does not contain toxic substance and is green and environmentally-friendly; and the apparatus of the preparation method has simple process and low cost without any three-waste emission and environmental pollution in the whole preparation process.

A system and method for displaying graphs on a computer display organize the data and axes of the display hierarchically. The user is allowed to select which levels of the hierarchy are to be displayed, thereby controlling the look of the display. Data at lower hierarchical levels is aggregated at the level chosen for display. By varying the chosen display levels, the user changes the nature of the display on the computer monitor.

The invention discloses a prescription for preparing an energy and protein feeding stuff raw material full of omega-3 fatty acid by using rubber seeds and a method thereof. The weight percentages of the omega-3 energy and protein feeding stuff raw materials are as follows: rubber seeds 20-80%, bean pulp, corn, rapeseed cake (pulp), cottonseed cake (pulp), rice bran and wheat bran or any combination thereof 20-80%. The preparation method is as follows: the exuviated and dried rubber seeds are mixed with various ingredients evenly and puffed, and then finished product is gained. By the invention, the nutrient components such as omega-3 fatty acid, energy and protein and the like contained in the rubber seeds can be used fully, meanwhile, anti-nutritional components such as hydrocyanic acid and the like contained in the rubber seeds are removed, the energy and protein raw materials full of omega-3 fatty acid widely accepted by the feeding stuff industry and applicable to various birds, livestock and fish feeding stuff are processed. The price of the energy and protein raw material is low.

The invention discloses rare-earth-type 0Cr17Ni4Cu4Nb martensitic precipitation-hardening stainless steel. The rare-earth-type 0Cr17Ni4Cu4Nb martensitic precipitation-hardening stainless steel is characterized by comprising the following chemical components in percentage by weight: less than or equal to 0.07% of C, less than or equal to 1% of Si, less than or equal to 1% of Mn, less than or equal to 0.035% of P, less than or equal to 0.03% of S, 3.00-5.00% of Ni, 15.5-17.5% of Cr, 3.00-5.00% of Cu, 0.15-0.45% of Nb, 0.05-0.25% of Re and the balance of Fe and belongs to the field of alloy steels. The invention also discloses a preparation method of the rare-earth-type 0Cr17Ni4Cu4Nb martensitic precipitation-hardening stainless steel. The preparation method comprises the steps of smelting, casting, carrying out electroslag remelting, casting ingots, forging or rolling, carrying out solution treatment and the like. The rare-earth-type 0Cr17Ni4Cu4Nb special steel, which is disclosed by the invention, as one of precipitation-hardening martensitic stainless steel, has the characteristics of high strength, high hardness, corrosion resistance and the like and is suitable for various technical fields, such as chemical machinery, food machinery, papermaking machinery, aerospace and marine.

The invention relates to the technical field of soil conditioners and particularly relates to a soil heavy metal biological fixing agent and an application method thereof. The formula of the soil heavy metal biological fixing agent is that every one kilogram of an organic fertilizer is added with 2-10 g (109 CFU/g) of B. natto solid leavening agent, 2-10 g (109 CFU/g) of B.mucilaginosus solid leavening agent, 2-6 g (109 CFU/g) of B.megaterium solid leavening agent and 4-10 g (1010 CFU/g) of Trichoderma koningii solid leavening agent, wherein the main ingredients of the biological organic fertilizer contain more than 40% of organic matter, more than 20 million/g of effective viable count, and more than 5% of total nutrient. The soil heavy metal biological fixing agent is low in cost, has few environmental risks, remarkably reduces the absorption of the heavy metals of the crops, improves the soil fertility, effectively prevents and cures the soil-borne diseases and increases the economic benefit of the crops.

An organosilicon compound containing carbonyloxyether bond is disclosed, which can be used to synthesize the organosilicon material containing carbonyloxyether bond and to modify the surface of meso-porous Si material. Its preparing process is also disclosed.

The invention relates to a sludge treatment process. The process comprises the steps as follows: a river is dredged by a dredging device and sludge is conveyed by a sludge pipeline; the sludge is sentto a garbage sorting machine for garbage sorting; the sludge is sent to a sand scraping separation system to remove sand in the sludge; the sludge is sent to a first-stage sedimentation tank of a sludge storage tank, a second-stage sedimentation tank and a third-stage sedimentation tank are arranged behind the sludge storage tank, and overflow water in the third-stage sedimentation tank is conveyed to a clear water tank; a dosing platform blends required chemicals and adds agents to sludge output by the sludge storage tank, output sludge is mixed, conditioned and then conveyed into a concentration tank to increase sludge concentration, then, secondary dosing is performed before dewatering, the sludge is sent to a dewatering platform for dewatering, and filter pressing water produced by the dewatering platform flows back to the second-stage sedimentation tank; overflow water in the third-stage sedimentation tank is discharged to the clear water tank, water in the clear water tank is recycled or directly discharged to the river. A relatively efficient water recycling system is adopted and dependence on clean water is reduced.

The invention relates to an organic-inorganic hybrid silane metal waterborne anti-corrosion coating which comprises the following components in part by weight: 10 to 20 parts of alkoxy ortho-silicate ester, 1 to 2 parts of ZrOC12.8H2O, 10 to 20 parts of ethanol, 1 to 4 parts of acetylacetone, 5 to 10 parts of trimethoxy terminated polypropylene oxide oligomer, 5 to 10 parts of ethyoxyl terminated dimethylsilane oligomer, 2 to 5 parts of polyving akohol and 40 to 70 parts of water. A preparation method of the organic-inorganic hybrid silane metal waterborne anti-corrosion coating comprises the following preparation steps of: 1, adding the alkoxy ortho-silicate ester and the ethanol into the water and uniformly stirring to form mixed solution A; 2, adding the trimethoxy terminated polypropylene oxide oligomer, the ethyoxyl terminated dimethylsilane oligomer and acetylacetone into the mixed solution A and uniformly stirring to form a mixture B; 3, regulating the pH value of the mixture B into the range of 8 to 10 by sodium hydroxide, heating to the temperature of 30 to 50 DEG C and carrying out seal stirring for at least two hours to prepare silica sol C; 4, uniformly mixing the ZrOC12.8H2O, the acetylacetone, the ethanol and the water according to the proportion and stirring for 2 hours at room temperature to prepare zirconium sol D; and 5, mixing the silica sol C and the zirconium sol D according to the proportion, adding the polyving akohol solution and uniformly stirring to obtain the organic-inorganic hybrid silane metal waterborne anti-corrosion coating.

The invention discloses a method for extracting gold and/or silver from sulfuric acid slag. The method comprises the following steps: performing multi-stage countercurrent leaching on sulfuric acid slag containing gold and silver by using an acidic thiourea solution; adsorbing a leachate by using an ester-based thiourea resin column; and after elution of a dilute acid, performing replacement and reduction by using iron to obtain noble mud containing gold and silver. The adsorption solution and the replacement solution can respectively return to a former process to be used as a leaching agent and an eluting agent; and in the operating process, wastewater and waste residues are not discharged, so that the method has remarkable environmental and economic benefits.

The invention discloses a Gelatin derivative with multiple modifications, which not only has the general formula (I) structure, but also has at least one structure of the general formulas (II), (III) and (IV) at the same time, wherein, G is a Gelatin residue comprising an A-type Gelatin residue, a B-type Gelatin residue and a gene recombination Gelatin residue; R1 is an alkylidene or a polymer chain containing an aminoacyl bond; R2 is an alkyl or an arylamidase; R3 is an alkylidene, while R1 is a carboxyl or a carboxyl salt. The multiple modifications of the Gelatin comprises the aminoacyl bond hydrophobic modification of the Gelatin side chain amino, the aminoacyl bond Carboxylation of the Gelatin side chain amino, the aminoacyl bond sulfhydrylation of the Gelatin side chain amino and the sulfhydrylation after the aminoacyl bond Carboxylation of the Gelatin side chain amino. Besides, the invention also discloses the cross-linked copolymer, which can be used as the cell growth matrix etc. The Gelatin derivative with multiple modifications of the invention has flexible chemical structures and a plurality of performance.

The invention provides a corrosion-resistance coating of a polysilicon ingot furnace, a high temperature resistance protective layer and a preparation method thereof. The corrosion-resistance coating comprises the following components with the weight percentage: 85%-93% of mixture of carbon fibre powder and graphite powder, 1%-4% of film forming agent, 1%-3% of mixture of firming agent and dispersing agent, and 5%-12% of insulating material powder; the insulating material powder is one or two compounds of Sr3Ti2O7 and Sr4Ti3O7. The high temperature resistance protective layer comprises a carbon fibre thermal-protective coating and the corrosion-resistance coating covered on thereof. The corrosion-resistance coating of the invention causes the surface of the carbon fibre thermal-protective coating to be smooth, blocks the aggregation of impurities, has high temperature resistance and high strength, protects the carbon fibre thermal-protective coating not to be rusted, thus prolonging the service life of the carbon fibre thermal-protective coating.

The invention relates to an active sludge floatation thickening device and method for a membrane biological reaction tank process. The device is provided with a flocculation reaction tank, a floatation tank and a water storage tank, wherein a blender, a sludge feeding port and a doser are arranged in the flocculation reaction tank; the floatation tank is provided with dissolved air release regions and floatation regions separated by half weirs, a sludge discharge trough and a sludge scraper, and a sludge collection pipeline is arranged at the bottom of the floatation tank; and the water storage tank is connected to the back side of the floatation tank, and is provided with a level regulator and a quick air-dissolving device. The method comprises the following steps: 1, controlling the discharge amount of surplus sludge; 2, adding a flocculant; 3, mixing the flocculated sludge with the air-dissolved water to form adhesions; 4, regulating surface solid loads in the floatation regions; 5, discharging clear solutions in the floatation regions; and 6, discharging the sludge. The invention is applicable to activated sludge thickening treatment in the membrane biological reaction tank process, and has the advantages of simple structure, reasonable design, convenient operation process and favorable effect.

The invention relates to an antioxidation method of sporoderm-broken ganoderma lucidum spore powder, the method is characterized in that vitamin E with 0.1-10 parts by weight is added in ganoderma lucidum spore powder with 100 parts by weight, excipients are added after the ultramicro smashing for breaking sporoderm, and then granules, capsules, tablets and pills are further prepared. The method can effectively prevent the oxidation deterioration of the sporoderm-broken ganoderma lucidum spore powder, maintain active ingredients of the sporoderm-broken ganoderma lucidum spore powder to the maximum extent, improve the quality of the sporoderm-broken ganoderma lucidum spore powder and allow the sporoderm-broken ganoderma lucidum spore powder to have higher utilization ratio and be easily absorbed by human body; the added vitamin E can simultaneously supplement the needs of the human body, thereby being perfect in color, aroma and taste and having more significant health care effect.

The invention discloses a preparation method of a biological soil solidifier and belongs to the field of soil solidifiers. According to the preparation method disclosed by the invention, a high-activity catalyzing enzyme is extracted from strains; the enzyme can be used for efficiently catalyzing urea to be hydrolyzed into ammonia and carbon dioxide and is dispersed into a solution through cell walls; calcium ions in the solution can be adsorbed on surfaces of bacterium cells; after the urea is hydrolyzed, generated carbonate radicals are precipitated with the calcium ions to generate calciumcarbonate sediment for covering bacteria; ammonium ions generated by decomposing the urea in a culture solution are good for the generation of the calcium carbonate sediment; generated calcium carbonate crystals are filled into soil grains to adhere the adjacent soil grains; except a calcium carbonate crystal with a cohering effect, part of soil grains cover the surface of the sandy soil grains orare freely distributed in a sample, so that soil properties are also reduced (the soil porosity and the permeability are reduced). By adopting the preparation method of the biological soil solidifier, the problems of a current soil solidifier that the compressive strength is reduced and the soil porosity and the permeability effect are poor are solved.