259results about How to "Will not cause pollution" patented technology

The invention relates to a water-based airplane surface cleaning agent, which is prepared by uniformly mixing the following components in percentage by weight: 21 to 30 percent of degradable surfactant, 5 to 7 percent of metal corrosion inhibitor, 0.3 to 2 percent of pH regulating agent, 1.7 to 5 percent of stabilizer, and the balance of deionized water. A preparation method comprises the following steps: (1) weighing the pH regulating agent, the degradable surfactant, the metal corrosion inhibitor, the stabilizer and the deionized water according to the ratio of weight percent; (2) adding the pH regulating agent, the metal corrosion inhibitor, the degradable surfactant and the stabilizer into the deionized water at the room temperature of between 23 and 25 DEG C; and (3) stirring the liquid at constant speed of 60 to 80r/min for 20 to 40 minutes to ensure that no bubble is generated in the liquid to prepare the cleaning agent after uniform mixing. The invention has scientific and reasonable formula and simple process without special equipment, and the cleaning agent has the advantages of strong cleaning capability, short cleaning time, low cost, high efficiency and is safe and reliable for use.

The invention discloses a method for making natural gas by underground coal bed microorganism. Mainly, culture solution is utilized to cultivate and activate flora existing in the coal bed to convert underground methane flora into methane gas. The invention not only can convert coal into methane to serve as natural gas but also can improve the air permeability of the coal bed in the gas making process, so that the invention has an important meaning for improving the drainage capability of methane and ensuring upper safe extraction; more importantly, percent conversion is high, and converted coal bed resource can be reused so as to overcome the defects of the existing hot gasification method that percent conversion is low, and coal resource in the gasification area can not be reused after gasification ends.

The invention relates to a water based environment-friendly cleaning agent and the preparation method, which is characterized in that the agent comprises natural plant extract, degradable surface active agent, inhibiter and de-ionized water. The preparation method is as follows: (1) preparing materials according to the weight ratio, (2) adding the raw material orderly in series, (3) stirring at even pace and (4) evenly mixing to make the finished cleaning agent ultimately. The preparation method for the water based environment-friendly cleaning agent has the advantages of scientific prescription, simple production technique, strong cleaning ability, short cleaning time, low labor and man-hour, high work efficiency, low causticity to the equipment, good safety and low equipment cost. The water based environment-friendly cleaning agent is degradable liquid and can be biologically degraded into harmless material in nature completely. The waste liquid after be cleaned cab be directly discharged without polluting the environment and reach the sewage discharge standard. The water based environment-friendly cleaning agent is provided with the surface active agent and the inhibiter which can form a rustproof protecting film on the metal surface after cleaning, and ensures that the part after cleaning has an advantage of good rust protection.

Provided are environment-friendly universal metal surface pretreatment liquid and a use method. The environment-friendly universal metal surface pretreatment liquid comprises, by weight in percentage, 0.5-1.5 percent of polyfunctional group alkyl phosphate, 2-5 percent of zinc oxide, 0.5-1 percent of sodium molybdate, 1-5 percent of tartaric acid, 1-3 percent of metal surface oxidant, 0.1-0.5 percent of graphene oxide, 1-2 percent of citric acid and the balance water. Due to the fact that the efficient metal surface oxidant is added, the quality of a passivation layer in an original product is greatly improved, and the corrosion resisting performance of a chemical conversion coating is greatly improved. Due to the fact that the graphene oxide is added, the number of active functional groups of an organic adsorption layer is effectively increased, the crosslinking degree of the organic adsorption layer and an outer organic coating is improved, and the adhesive force of a paint film is effectively improved.

The present invention relates to a strain for food preservation and its antibacterial product, belonging to the field of food bio-technology. The antibacterial product produced by Bacillus subtilis strain fmbJ has obvious depressing effect for main pathogenic bacteria and putrefactive bacteria in the food, including 7 Gram-negative bacteria, 3 Gram-positive bacteria and 4 moulds. Its production process includes the steps: slope, shave-flask seed, seed tank, fermentation tank, separation extraction and antibacterial metabolic product.

The invention relates to a bacterium and virus killing combination with improved killing performance, especially a bacterium and virus killing combination with improved killing performance comprising Potassium Monopersulfate Compound, sodium hexametaphosphate, malic acid, citric acid and tartaric acid. The combination in the invention is made from natural substances, can be biodegraded by microorganism, produces almost no environmental pollution, achieves better disinfection effect than the previously widely used VIRCON-S in extensive bacterium and virus killing under the condition of organic substance bulk processing, consequently, is suitable for the disinfection of not only barns but also carcasses and drinking water.

The invention discloses a foundation pit groundwater recharging system. The foundation pit groundwater recharging system comprises a back wash unit, a water pumping well, a one-level water storage tank, an aeration unit, a one-level filter, a two-level filter, a two-level water storage tank and a recharge well. The water pumping well, the one-level water storage tank, the aeration unit, the one-level filter, the two-level filter, the two-level water storage tank and the recharge well are sequentially connected. The back wash unit is connected with the one-level filter and the two-level filter. The foundation pit groundwater recharging system further comprises a control treatment unit and a water level monitoring unit which is connected with the water pumping well, the two-level water storage tank and the recharge well. The control treatment unit comprises a water pumping control subunit connected with the water pumping well, a water treatment control subunit connected with a recharge water quality treatment system and a recharge and flow control subunit connected with the recharge well. According to the foundation pit groundwater recharging system, the effect that land subsidence surrounding a foundation pit due to rainfall is avoided can be ensured, and meanwhile, optimization of recharge water quality is further really achieved. After recharge of recharge water is finished, drop of the water level of regional groundwater, water quality reduction and pollution do not occur, blocking of the recharge well is also avoided, and the recharge effect is good.

A liquid-state disperse dye is prepared through reaction, press filter to obtain cake, dissolving it in acetone or alcohol, dissolving disperser in water, mixing them together while stirring, and heating for evaporating organic solvent.

The invention discloses a synthetic method of neohesperidin dihydrochlcone. The synthetic method comprises the following steps of: adding electrolyte into an anode chamber and a cathode chamber while adding the neohesperidin dihydrochlcone to the cathode chamber, adding the solution into an isolated electrolytic cell to be electrolyzed, concentrating and spin-drying electrolyzed cathode solution, dissolving a product obtained by spin-drying and adjusting the product to acidity, cooling to 0 DEG C, standing to separate out solid, filtering and recrystallizing the solid to obtain the neohesperidin dihydrochlcone. According to the invention, a catalyst and gas hydrogen are not used in the method, reactive hydrogen is provided through electrolysis of water, the newly generated hydrogen has larger activity, and can be subjected to addition reaction with carbon-carbon double bond in the absence of the catalyst, water resources can be abundant, the hydrogen and the oxygen are generated by electrolysis, the hydrogen is taken as a proton source to carry out addition reaction with the neohesperidin dihydrochlcone, and the oxygen cannot cause environmental pollution after the oxygen is directly discharged to atmosphere.

The invention discloses a method for preparing urea ardealite by a solution crystallization method taking ardealite as raw material. The method comprises the following steps of: (1) preparing a saturated urea aqueous solution, and adding ardealite, soluble phosphate and urea into the saturated urea aqueous solution to form slurry; (2) in the conditions of normal pressure and normal temperature, uniformly mixing the slurry and performing crystallization reaction to obtain urea ardealite slurry; and (3) performing solid-liquid separation on the urea ardealite slurry, and then drying the solid phase to obtain the urea ardealite. According to the invention, on the conditions of normal pressure and normal temperature, ardealite, soluble phosphate and urea are used as raw materials, a solution crystallization method is adopted, the investment is small, and the operation is convenient; and the prepared urea ardealite has the characteristics of regular crystal form, uniform granularity, accurate adjustment of purity and stable quality.

The invention provides a method of self-assembly growth of a large-area, even and ordered Ge quantum dot array on a Si substrate by sputtering deposition. The method includes preparation of ultrathin Si-based AAO (anodic aluminum oxide), preparation of a pattern substrate by nano-pore replication, and self-assembly growth of the even, ordered Ge quantum dot array on the surface of the pattern substrate by ion beam sputtering. Quantum dot growth process matching with the pattern substrate is obtained by controlling ion beam sputtering deposition temperature, ion beam flux voltage, and buffer layer thickness, so that Ge quantum dot nano-pores evenly and orderly grow at nucleation center. Even-size Ge quantum dots obtained are in hexagonal symmetrical distribution on the surface of the Si substrate, and the diameter of the quantum dots is adjustable. The method effectively overcomes the defects that distribution of the self-assembled Ge/Si quantum dots is random and disorder in position, the size is uneven, controllability is low, and preparation cost is high. The large-area, even, ordered and small-sized Ge quantum dot array is prepared at low cost. The method is applicable to manufacture of devices such as silicon-base quantum-dot light emitters, quantum-dot photoelectric detectors and efficient quantum-dot solar cells.

The invention discloses a lobster feed capable of enhancing the immunity. The feed is prepared from the following raw materials in parts by weight: 15 to 25 parts of germinated brown rice, 20 to 30 parts of oat bran, 45 to 85 parts of potato powder, 4 to 10 parts of carrot top, 8 to 16 parts of duck oil, 30 to 50 parts of chrysanthemum meal, 5 to 10 parts of peanut meal, 3 to 6 parts of earthworm powder, 8 to 12 parts of sunflower seed meal, 4 to 10 parts of extruded soya bean meal, 3 to 9 parts of meat and bone meal, 6 to 12 parts of defatted fish meal, 6 to 10 parts of concentrated albumen-powder of soybeans, 10 to 20 parts of potato protein powder, 0.06 to 0.12 part of tryptophan, 0.3 to 0.7 part of methionine, 0.5 to 0.7 part of cellulase, 1.5 to 2.5 parts of selenium-enriched yeast, 0.1 to 0.2 part of Bacillus, 0.06 to 0.1 part of monascus, 0.03 to 0.07 part of Schizophyllum commune, 4 to 8 parts of Chinese herbal medicine additive, 3 to 5 parts of corn oil and 3 to 6 parts of modified montmorillonite.

The invention discloses an optimized cyclocarya paliurus container nursery technology. The technology comprises the following steps of 1, preparation of nutrient soil, wherein the nutrient soil for cyclocarya paliurus container nursery is prepared from yellow soil, perlite, turfy soil and decomposed chicken manure according to the volume ratio of 2:2:4:2; 2, selection of a nursery container, wherein the nursery container is a nonwoven bag; 3, culture of sowing seedlings or transplanting or sprout seedlings; 4, root control through the air root relief technology, wherein the container seedlings are placed on a shelf suspended with bricks, and the bottom of the container is in a suspended state; 5, seedling management, wherein after nursery stocks are transplanted, relevant seedling management work is done properly. By means of the method for culturing the cyclocarya paliurus container seedlings, the seedlings can emerge quickly and tidily after sowing is conducted, the nursery stocks are high in quality and grow tidily and evenly, and a solid foundation is laid for efficient culture of the cyclocarya paliurus nursery stocks.

The invention discloses a detergent for a piggery of lactation sows, relating to the technical field of breeding industry. The detergent is prepared from the following raw materials in parts by weight: 50-60 parts of straw ash, 25-30 parts of tea seed s cakes, 15-20 parts of calamine powder, 12-15 parts of coffee grounds, 10-13 parts of a deodorant, 15-20 parts of folium artemisiae argyi, 15-20 parts of cortex meliae, 12-16 parts of sophora japonica, 10-14 parts of onions, 8-12 parts of mustard, 8-12 parts of radix puerariae powder, 6-10 parts of horseradish, 4-6 parts of realgar, 2-5 parts of sulfur, 8-12 parts of table vinegar and 200-300 parts of ethanol. The detergent disclosed by the invention not only has an excellent cleaning effect, but also can take insect killing, sterilizing and deodorizing effects and can be used for effectively improving the sanitation condition of the piggery, so that piglets are promoted to grow; the used raw materials are cheap and available; and environment pollution caused by wastewater obtained after the piggery is cleaned can be avoided.

The invention belongs to the field of hydrometallurgy and in particular relates to a method for extracting vanadium from vanadium-titanium magnetite concentrates. The method comprises the following steps of: 1) carrying out acid dissolution and leaching on vanadium-titanium magnetite concentrates and hydrochloric acid at 100-150 DEG C, and filtering the solution to obtain an acid leaching solution; 2) calcining the acid leaching solution obtained in the step 1) to obtain an iron-vanadium solid material and hydrochloric acid; 3) putting the iron-vanadium solid material obtained in the step 2) in an alkali solution, and stirring, filtering and washing to obtain an iron-containing solid material and a vanadium-containing alkali solution; and 4) evaporating and concentrating the vanadium-containing alkali solution obtained in the step 3), then repeating the step 3), and carrying out cooling crystallization to extract a vanadate crystal when the concentration of vanadate in the alkali solution is 10-30g/L. The method has the advantages that the problems of high energy consumption caused by multiple high-temperature roasting in a method for extracting vanadium through sodium (calcium) roasting, three-waste pollution caused in the roasting processes and the like are avoided; and the recovery rate of vanadium is greatly increased.

The invention discloses Chinese alpine rush fibers having a good antibacterial performance and used for weaving and a preparation method of the Chinese alpine rush fibers. The Chinese alpine rush fibers are treated by sufficiently utilizing a biological enzyme and modified by microorganisms. The Chinese alpine rush fibers can be rapidly and efficiently degummed through strictly controlling technological conditions; and meanwhile, the Chinese alpine rush fibers are modified so that the Chinese alpine rush fibers, which have good antibacterial performance, high whiteness and good spinnability, are obtained.

A ceramic coating member is provided for improving durability of a member arranged inside a container of a semiconductor processing apparatus for performing plasma etching process or the like under strong corrosion resistant environment. A porous layer composed of a sprayed coating of an oxide material in the group IIIa in the periodic table is provided on the front plane of a metal or nonmetal base material, directly or through an undercoat layer. On the layer, a secondary recrystallized layer is formed by irradiation of high energy of electronic beams, laser beams and the like.

The invention provides a method for physically dyeing wood, which belongs to the technical field of wood processing. The method for physically dyeing the wood is to heat the wood and control temperature and time for heating to dye the wood. The method for physically dyeing the wood has the characteristics of small equipment investment, small production field, simple process and short treatment period; moreover, no pollution is generated during dyeing treatment, with safe production and high production efficiency; besides, the dyeing process does not require water vapor, so that the method has the advantages of no water consumption, small heat energy consumption, energy conservation, low production cost and the like during the process of dyeing treatment. Furthermore, the thickness of dyed wood is not restricted, and the method overcomes the defects of deformation, cracking, color difference and the like for the wood during production process, and has high product quality; and dyed wood has dimension stability, improved noncorrosibility and wide application range.

The invention discloses a preparation method of a machine-washable cashmere sweater. A chemical reagent is basically not added in the whole machining process, so that the method is natural and environmentally friendly and belongs to green processes. Biological enzymes, in particular papain and bromelain, are fully utilized in the process, and the operation is simple. The machine-washable cashmere sweater provided by the invention is very excellent in index performance, high in bursting strength, washable and resistant to abrasion and pilling, and cannot become deformed by machine washing.

The invention discloses an automatic sign spraying device which adopts a disposable spraying and printing template; the invention also discloses a sign spraying method for the sign spraying device. According to the technical proposal provided by the invention, the automatic sign spraying device which adopts a disposable spraying and printing template comprises a template, a guide wheel or a frame body, a water fog spray rod and a dope spray rod; the template is a soft water absorption thin plate body; a hollow spraying information hole body is arranged on the template; the other side of the template is provided with the water fog spray rod; the spraying opening of the water fog spray rod faces towards the template. The automatic sign spraying device of the invention has the advantages of fast spraying and printing speed, good spraying and printing effect, lower operation cost, cheap manufacture of the spraying and printing template and simple and easy spraying and printing method.

The invention relates to an environment-friendly PVC color sizing and the preparation method, comprising pigment with 10 to 50 mass percent and plasticizer with 50 to 90 mass percent. The PVC color sizing adopts the following preparation method and technological process: a) dispersing and mixing, namely putting the pigment and the plasticizer into a dispersion machine to disperse and mix; b) grinding, namely grinding the mixture after dispersing and mixing to obtain the environment-friendly PVC color sizing. The environment-friendly PVC color sizing has the advantages of simple preparation method and good environmental protection performance. The pigment and the plasticizer can be compatible with each other throughly. The preparation method can be used in PVC prilling and calendering producing process without any environmental pollution, and also has the advantages of smoothing the surface of the PVC granules or pellets or films, improving the dispersing effect and pigmentation effect in the PVC mixture and increasing the lustrousness of the PVC granules or pellets or films.

The invention discloses phosphorus-free oil removing powder which comprises the following components in percentage by mass: 10-30% of sodium hydroxide, 10-20% of sodium carbonate, 2-15% of nitrilotriacetic acid trisodium salt, 2-15% of C2-8 carboxylic acid, 1-5% of sodium citrate, 1-5% of sodium gluconate, 5-10% of sodium sulfate and 2-20% of surfactant. According to the invention, waste water treated by the oil removing powder is easy to treat; and the oil removing effect is good, and the oil removing speed is high.