69results about How to "Gap developed" patented technology

The invention belongs to the technical field of resource reuse, and particularly relates to a renewable unfired filter material and a preparation method, application and regeneration method thereof. The invention provides a filter material, which is mainly prepared from the following components: sal industrial solid waste, construction waste, sludges, alkali activators and foaming agent; the sal industrial solid waste is selected from one or more kinds of flyash, metakaolin, solid sulfur ash, coal gangue, cinder, slag, zeolite slag, red mud, waste gypsum, desulfurization ash, carbide slag andindustrial dust; the construction waste is selected from one or more kinds of waste concrete blocks, waste cement mortar, crushed stones, waste slag soil, waste bricks and waste tiles. According to the renewable unfired filter material and the preparation method, application and regeneration method thereof, the consumption of the construction waste, the sludge and the industrial solid waste is realized simultaneously, and the resource utilization of the construction waste, the sludge and the industrial solid waste is achieved, and great economic and social values are brought.

The invention relates to a modified straw wood charcoal adsorbent which is prepared from the following raw materials in parts by weight: 110-120 parts of straw wood charcoal, 8-10 parts of zeolite powder, 7-9 parts of medical stone powder, 7-9 parts of acrylamide, 6-9 parts of kieselguhr, 16-20 parts of citric acid, 3-4 parts of EDTA (ethylene diamine tetraacetic acid), 4-6 parts of sodium tripolyphosphate, 4-5 parts of modified kieselguhr and right amount of water. The zeolite, medical stone, kieselguhr and other rock powders used for modification can enhance the adsorptivity, implement microbial resistance, deodorization, moisture absorption, mold prevention and desulfurization, and catalyze the decomposition of organic substances; the acrylamide can flocculate pollutants in water; by using the straw wood charcoal as the substrate, the adsorbent has the advantages of developed pores, high adsorption capacity and low cost, and is suitable for industrial production; and the adsorbent is suitable for daily air and water purification, and also suitable for treating industrial wastewater and waste gas.

The invention relates to a multi-heteroatom codoped hollow porous carbon material, a preparation method and application thereof. The method includes: firstly taking a metal-organic framework as the structure template and nitrogen source, then adding two reactants containing nitrogen, phosphorus and sulfur heteroatoms for in situ polymerization reaction on the surface of the metal-organic frameworkcompound, and doping nitrogen, phosphorus and sulfur heteroatoms at the same time to obtain a compound with similar geometric profile to a pure metal-organic framework compound crystal, and conducting high-temperature calcination and hydrochloric acid aqueous solution reaction to remove metal oxide, thus obtaining the multi-heteroatom codoped hollow porous carbon material; and mixing the composite material, acetylene black and a polytetrafluoroethylene emulsion evenly, then coating graphite paper with the mixture, and performing drying to obtain a capacitance desalination electrode. The method provided by the invention has the characteristics of simple operation and easily controllable conditions, and the obtained electrode has high specific surface area, good electrical conductivity andwettability, and has potential application prospects in capacitance desalination aspect.

The invention discloses a membrane material for a lithium sulfur battery positive electrode, and belongs to the technical field of electrochemical batteries. The membrane material for making the lithium sulfur battery is designed against the disadvantages of poor conductivity, low active substance utilization rate and the like of traditional lithium sulfur batteries, and has the advantages of multilayer filter screen structure, prosperous gap, high conductivity, simple preparation technology and harmlessness to the environment. The membrane material for the positive electrode is placed between a positive plate and a diaphragm, so the dissolution of the polysulfide in the electrolyte in the charge and discharge process of the battery is effectively inhibited, and the corrosion of the polysulfide to a metallic lithium negative electrode is reduced. The lithium sulfur battery adopting the membrane material has a high active substance utilization rate and stable cycle performances, has an initial discharge specific capacity under a current density of 0.162mA / cm<2>, and still has a discharge specific capacity of above 702mAh / g after 50 times cycle; and compared with traditional lithium sulfur batteries, the lithium sulfur battery adopting the membrane material has the advantages of excellent performances and low cost, and lays a good foundation for the marketization of the lithium sulfur battery.

The invention discloses a preparation method of activated carbon for multi-element co-doped lead-carbon batteries. The method includes: firstly drying purchased nitrogen-rich biomass, the performing mixing with an activating agent evenly, adding water till complete submersion, and performing standing treatment; then placing the treated mixture in a nitrogen gas introduced nickel kettle to conduct heating treatment, then performing cooling to room temperature, using dilute hydrochloric acid to remove the activating agent from the obtained carbon material, and using deionized water to perform washing to neutral, and then conducting drying to obtain nitrogen-rich activated carbon; dissolving a metal oxide in dilute nitric acid to obtain a metal oxide solution, then adding nitrogen-rich activated carbon and performing mixing, placing the obtained mixture in a vacuum box to conduct vacuum treatment and drying, then placing the mixture in a nitrogen gas-protecting carbonization furnace to perform heating treatment, thus obtaining the activated carbon for lead-carbon batteries, i.e. modified activated carbon. According to the invention, an element or metal oxide with high hydrogen evolution potential is loaded in activated carbon, the doping element exists in the form of metal oxide or nitrate or sulfate, so that the hydrogen evolution potential of the modified activated carbon can be significantly increased.

The invention discloses a ceramic filter element added with carbon nano tubes. The ceramic filter element added with the carbon nano tubes is characterized by being prepared from the following raw materials in parts by weight: 15-17 parts of activated carbon, 10-13 parts of diatomite, 6-9 parts of cordierite, 2-3 parts of carbon nano tube, 3-5 parts of smashed cotton exocarp, 6-8 parts of smashed coconut shell, 7-9 parts of mica powder, 5-8 parts of clay, 8-10 parts of aluminium powder, 4-6 parts of zeolite, 1-2 parts of chitosan, 5-7 parts of modified coconut shell activated carbon and a defined amount of water. The ceramic filter element added with the carbon nano tubes is added with chitosan, so that the ceramic filter element added with the carbon nano tubes has good clarification and flocculation effects; the carbon nano tubes are added, so that the mechanical properties of the ceramic filter element can be improved; a mesoporous structure is formed, so that heavy metal ions in water can be effectively adsorbed and removed; modified coconut shell activated carbon is added, so that interspace is developed, the adsorption property is good, the strength is high, and the ceramic filter element added with the carbon nano tubes can be regenerated easily and is economical and durable; the purification efficiency is high, the service life is long, and the corrosion resistance is high, so that the ceramic filter element added with the carbon nano tubes can be used for air adsorption filtration or inspiration filtration by virtue of a car filter cleaner.

The invention discloses a cordierite compound ceramic filter element. The cordierite compound ceramic filter element is characterized by being prepared from the following raw materials in parts by weight: 13-15 parts of cordierite, 9-11 parts of mullite, 6-8 parts of silochrom, 4-7 parts of smectite, 8-10 parts of activated alumina, 3-5 parts of calcium sulfate, 2-3 parts of dimethyl silicon oil, 3-4 parts of sodium alginate, 3-5 parts of palm fibers, 2-3 parts of urea, 5-7 parts of modifying coconut active charcoal, and the defined amount of water. The cordierite compound ceramic filter element provided by the invention has the advantages that the silochrom is added, so that the adsorptive property and heat stability are good, the chemical property is stable, and the mechanical strength is high; the palm fibers are added, so that the tenacity of the filter element is added, meanwhile, the cordierite compound ceramic filter element has a porous property, and the filtering adsorptive property is improved; the modifying coconut active charcoal is added, so that the gap structure is developed, the adsorptive property is good, the intensity is high, the regeneration is easy, and the cordierite compound ceramic filter element is economical and durable, is long in service life, is corrosion-proof and can be used for air adsorption filtration.

The invention discloses a method for making activated carbon by using wild peach pit shells. The method comprises the steps that the wild peach pit shells are dried for 12 hours at the temperature of 120DEG C to be dewatered, and are smashed to penetrate through a 40-mesh screen, the smashed wild peach pit shells are soaked in a 60% zinc chloride solution for 24 hours under the condition that the ratio of the wild peach pit shells to the zinc chloride solution is 1:2, then the soaked wild peach pit shells are transferred to a microwave oven with the microwave power ranging from 400W to 700W, and are processed for 10-30 minutes through irradiation, the processed wild peach pit shells are activated for 30-120 minutes at the temperature ranging from 400DEG C to 700DEG C, and then are processed through acid picking in a diluted hydrochloric acid solution which has the volume ratio of being 1:9 and is boiled for 30 minutes, cooling is conducted, the cooled wild peach pit shells are washed until the PH value ranges from six to seven, and are dried, and therefore the wild peach pit shell activated carbon can be obtained. The wild peach pit shell activated carbon made through the method has excellent adsorption performance.

The invention relates to a novel composite gas explosion suppressant which is composed of inorganic filler, a porous mineral material and inorganic phosphorus substances. The components are crushed, uniformly mixed and dried to obtain the gas explosion suppressant. The porous mineral material composite explosion suppressant prepared by the invention has the advantages of fine and uniform texture,low cost, low moisture absorption, high-efficiency explosion suppression, and easiness in industrial production, and can be applied to the field of gas explosion suppression.

The invention discloses a composite (BiO)2CO3 / C photocatalyst and application thereof, and belongs to the field of photocatalysis materials. Carbon fibers are prepared by adopting bamboo fibers as a carbon source, and (BiO)2CO3 is uniformly loaded on the carbon fibers by utilizing a hydrothermal method. The material is excellent in photocatalysis performance, and especially under the illumination of a xenon lamp, organic pollutants in sewage can be effectively degraded.

The invention relates to a method for preparing a graded porous carbon material capacitance type desalination electrode material. According to the method, a metal organic frame is synthesized by selecting water as a solvent, and a surfactant serving as a template is introduced in the synthesizing process to change the unique microporous structure of the metal organic frame to obtain a uniform mixed solution; and residual active components are washed at a certain temperature to obtain the graded porous structure metal organic frame compound. The compound has a geometrical appearance similar to a pure metal organic frame compound crystal, and metal inside the compound can be removed through high-temperature calcining and hydrochloric acid solution reactions, so that the graded porous carbon material with high nitrogen content can be obtained; the compound material, acetylene black and polytetrafluoroethylene emulsion are uniformly mixed and coated to graphite paper, and drying is carried out to obtain the capacitance type desalination electrode. The method is simple in operation and easily controlled in condition, mass synthesis can be achieved, and the electrode has high nitrogen content, high specific surface and excellent conductivity and wettability, and has a potential application prospect in the aspect of capacitance type desalination.

The invention discloses a fly ash-based porous defluorination material as well as a preparation method and application thereof. The porous defluorination material comprises the raw materials by weight: 20-40 parts of fly ash, 20-50 parts of calcined coal gangue, 0-20 parts of a fluorine ion adsorbent, 50-200 parts of water glass, 1-3 parts of a foaming agent and 0.1-0.2 part of a foam stabilizer.The preparation method of the fly ash-based porous defluorination material comprises the steps: a raw material mixing step: uniformly mixing fly ash, calcined coal gangue, the fluorine ion adsorbent and the foam stabilizer according to the ratio, and then adding the mixture into water glass to obtain a mixed material; a stirring step: stirring the mixed material for the first time, then adding hydrogen peroxide, and stirring for the second time to obtain mixed slurry; and a molding and curing step: carrying out molding treatment on the mixed slurry, and then curing to obtain the fly ash-basedporous defluorination material. The preparation method provided by the invention can achieve the purpose of treating waste with waste, and has an excellent defluorination effect.

The invention discloses a ceramic filter element added with polyvinyl chloride powder. The ceramic filter element is characterized by being prepared from the following raw materials in parts by weight: 13 to 15 parts of kaolin, 9 to 11 parts of talc powder, 3 to 4 parts of aluminum powder, 10 to 12 parts of polyvinyl chloride powder, 8 to 10 parts of chlorinated paraffin, 8 to 10 parts of wollastonite powder, 3 to 5 parts of fiberglass, 3 to 4 parts of bamboo charcoal, 2 to 4 parts of ammonium bicarbonate, 8 to 10 parts of ethyl acetate, 3 to 5 parts of crushed cotton hulls, 5 to 7 parts of modified cocoanut shell activated carbon and a proper amount of water. According to the ceramic filter element, due to the addition of the polyvinyl chloride powder, a formed material is high in elasticity and is tough; due to the use of the materials such as kaolin and talc powder, resources are rich, the raw materials are readily available, and the cost is reduced; due to the addition of the modified cocoanut shell activated carbon, the ceramic filter element is high in porosity and adsorption performance, strong in strength, easy to renew, economical and durable; the prepared filter element is high in toughness, strong in strength, high in adsorption efficiency and suitable for water treatment or air adsorption filtration.

The invention discloses an arsenic-fixing agent and a preparation method thereof, and a method utilizing the arsenic-fixing agent to fix arsenic. The arsenic-fixing agent is composed of calcium carbonate and a metal salt. The preparation method comprises the steps of drying calcium carbonate, then placing calcium carbonate in a metal salt solution, carrying out water bath heating for 2-2.5 hours under a condition of the temperature of 95+ / -5 DEG C while constantly stirring with a glass rod, filtering, finally drying under a condition of the temperature of 100-110 DEG C, and grinding to 180-300 mesh. The surface of a micro zone of the prepared arsenic-fixing agent is rough, gaps are prosperous, large pores and small pores have the same number, the porosity and the specific surface area are greatly improved, arsenic-fixing effects on high-arsenic fire coal under the condition of high temperatures are good, and economic and environmental comprehensive benefits are significant.

The invention discloses a waterproof mouse-ant prevention cable. The waterproof mouse-ant prevention cable comprises a cable core and a protective cover layer coating the outer side of the cable core, and the protective cover is prepared from, by weight, 20-40 parts of metallocene polyethylene, 65-85 parts of nitrile silicone rubber, 3-5 parts of titanium triisostearoylisopropoxide, 4-8 parts of barium stearate, 90-110 parts of filling agent, 2-4 parts of bis(2,4-dichlorobenzoyl) peroxide, 1-2 parts of butyl 4,4-bis(tert-butyldioxy)valerate, 2-4 parts of di(2-ehtylhexyl)4,5-epoxy tetrahydrophthalate, 1-3 parts of calcium stearate, 4-8 parts of microcrystalline wax and 2-3 parts of antioxidant. The waterproof mouse-ant prevention cable can effectively prevent water vapor from entering the inside of the cable, and is small in compression deformation, high in strength, high in mouse-ant prevention performance, resistant to tear and good in thermostability.

The invention relates to a preparation method of a composite aerogel adsorbent. The preparation method of the chitosan / tap water plant aluminum sludge composite aerogel adsorption material comprises the following steps: 1) dissolving chitosan into 1-3 vol% glacial acetic acid to obtain a 0.1-10 mass% chitosan solution; 2) drying the tap water plant aluminum sludge, and adding 0.1-30% of a foamingagent into the tap water plant aluminum sludge to obtain sludge slurry; 3) uniformly mixing and stirring the obtained chitosan solution and sludge slurry, and performing low-temperature freezing untilthe material is compact and uniform; 4) unfreezing the material with absolute ethyl alcohol to separate out internal organic substances and water; and 5) adding the unfrozen composite aerogel material into an acidic solution to enable a foaming agent in the material to react with acid until gas is generated and escaped, thereby finally forming the composite adsorption material with a large numberof pores. The chitosan sludge composite aerogel adsorbent obtained by the preparation method is large in specific surface area, relatively high in selectivity on low-concentration uranium-containingwastewater, high in adsorption capacity and short in adsorption time, and has a relatively high removal rate on low-concentration uranium.

The invention discloses a preparation method of chrysanthemum morifolium tea with a high nutrition retention rate. The preparation method comprises steps as follows: chrysanthemum morifolium flowers are soaked in clean water, coconut shell powder composite is added and stirred, and a first material is obtained; the first material is filtered, washed with clean water, spread and aired until no water drops are left on surfaces of petals and the petals are withered, put into a drying room to be dried, cooled to the normal temperature, sprayed with a citric acid solution, left to stand, put into the drying room to be dried and cooled, and the chrysanthemum morifolium tea with a high nutrition retention rate is obtained. The obtained chrysanthemum morifolium tea has a low water content and cannot get mildewed during storage; aromatic oil is little volatilized and seldom lost by comparison with the aroma of unprocessed chrysanthemum morifolium; the petals of chrysanthemum morifolium can be effectively prevented from changing color, the nutrient content of the drink is increased, the petals can be shrunk and deformed slowly and are soft and unlikely to break and fall, and accordingly, the chrysanthemum morifolium in the tea can keep good flower forms.

The invention discloses a digestible ecological goat feed. The digestible ecological goat feed comprises the following raw materials in parts by weight: 40-60 parts of wheat bran, 10-20 parts of puffed soybean flour, 10-20 parts of radish sprouts, 8-16 parts of buckwheat flour, 40-50 parts of a protein supplement, 4-8 parts of chloride choline, 4-8 parts of corn oil, 0.6-1.2 parts of beef tallow,4-8 parts of pine pollen, 2-4 parts of liquorice roots, and 2-4 parts of an intestinal probiotic agent; and the intestinal probiotic agent comprises the following ingredients in parts by weight: 6-14parts of a coconut shell powder complex, 1-2 parts of allicin, and 0.8-1.6 parts of phytase. The coconut shell powder complex is prepared by adopting a technology comprising the following steps of drying vermiculite, calcining dried vermiculite, cooling calcined vermiculite to room temperature, carrying out washing, carrying out crushing, adding coconut shell powder and water, carrying out stirring, carrying out filtrating, carrying out drying, carrying out carbonizing, adding sodium hydroxide, carrying out stirring, carrying out filtrating, carrying out washing, and carrying out drying.

The invention discloses an efficient graphene-based conductive additive and a preparation method thereof. Nano carbon black with a specific DBP value is selected and compounded with reduced graphene oxide in a specific ratio, and the nano carbon black with different DBP values is distributed in different regions of the surface of the reduced graphene oxide to form a unique nanocomposite structure,which exhibits excellent electrical conductivity. On one hand, the nano carbon black with the different DBP values repairs in-plane defects of graphene and improves the interfacial conductivity of graphene sheets and other materials, and on the other hand, the coverage of nano carbon black reduces the stacking among the graphene sheets and improves the dispersibility of the conductive additive.

The invention discloses a silochrom added ceramic filter element with good stability. The silochrom added ceramic filter element is characterized by being prepared from the following raw materials in parts by weight: 10-12 parts of activated carbon fiber, 12-13 parts of kaolin, 8-10 parts of mullite, 9-11 parts of zeolite powder, 6-8 parts of powdered aluminum, 4-7 parts of silochrom, 1-2 parts of polyvinyl alcohol, 3-5 parts of wheat flour, 3-5 parts of smashed Badam shell, 3-5 parts of smashed cotton hull, 1-2 parts of epoxidized soybean oil, 5-7 parts of modified cocoanut active charcoal and a proper amount of water. Due to the addition of the silochrom, the ceramic filter element is high in adsorptive property, good in thermal stability, stable in chemical property and high in mechanical strength; due to the addition of the Badam shell and cotton hull, the tenacity of the filter element is increased, and the filtering adsorptive property is improved because of porous performance; due to the addition of the modified cocoanut active charcoal, the ceramic filter element is large in gaps, good in adsorptive property, high in strength, easy to regenerate, economical and durable; the filter element can be used for air adsorption filtration.

The invention provides a vanadium-free denitration catalyst for arsenic-containing flue gas and a preparation process thereof. The catalyst still has a high denitration efficiency and anti-deactivating property when the arsenic content reaches up to 2.5 wt%. The catalyst can solve the problem that the arsenic adsorption amount is reduced, the denitration efficiency is reduced, the activity is relatively poor and the service life is short as vanadium pentaoxide is reacted with arsenic to block microcosmic ducts in the arsenic-containing flue gas which takes vanadium pentaoxide as the active substance.

The invention discloses an arsenic-fixing agent and a preparation method thereof, and a method utilizing the arsenic-fixing agent to fix arsenic. The arsenic-fixing agent is composed of calcium carbonate and a metal salt. The preparation method comprises the steps of drying calcium carbonate, then placing calcium carbonate in a metal salt solution, carrying out water bath heating for 2-2.5 hours under a condition of the temperature of 95+ / -5 DEG C while constantly stirring with a glass rod, filtering, finally drying under a condition of the temperature of 100-110 DEG C, and grinding to 180-300 mesh. The surface of a micro zone of the prepared arsenic-fixing agent is rough, gaps are prosperous, large pores and small pores have the same number, the porosity and the specific surface area are greatly improved, arsenic-fixing effects on high-arsenic fire coal under the condition of high temperatures are good, and economic and environmental comprehensive benefits are significant.

Provided is a stator of a single-phase motor with which an efficient magnetic circuit can be formed and a large torque can be obtained. The stator includes a pair of stator cores each having C-shape in a plan view and including distal end portions E disposed proximate to an outer peripheral surface of an axial rotor having a rotating shaft. The stator cores are disposed to opposite to each other with the rotor disposed therebetween in a first radial direction X orthogonal to an axial direction along a central axis line O of the rotating shaft. The stator cores include a pair of arm portions each extending in a radial direction intersecting the first radial direction X, and a base portion. The base portion connects ends of the arm portions on the opposite side from the distal end portions E, and extends in a circumferential direction encircling the central axis line O.

The invention discloses a fodder for reducing case fatality rate of turtles. The fodder contains the following raw materials in parts by weight: 70-80 parts of animal protein additive, 30-50 parts ofcorn, 15-24 parts of wheat, 4-15 parts of sesame, 2-8 parts of hay, 2-8 parts of rice bran, 15-24 parts of rapeseed cake, 5-12 parts of maize germ cake, 2-8 parts of fermenting chicken manure, 3-6 parts of cottonseed cake, 5-12 parts of castor cake, 4-12 parts of soybean cake, 4-12 parts of peanut meal, 2-4 parts of rock flour compound, 1-2 parts of calcium hydrophosphate, 0.5-1.2 parts of soya bean lecithin, 0.01-0.05 part of xylanase, 0.02-0.08 part of glucanase, 0.01-0.02 part of protease and 3-4 parts of phagostimulant. The fodder for reducing case fatality rate of turtles, provided by theinvention, is capable of increasing the digestibility of fodder nutrition, quickening the physiological metabolic process and effectively reducing the case fatality rate of turtles.

The invention discloses a textile wastewater treatment agent, comprising the following raw materials in parts by weight: 30-35 parts of nut shell activated carbon, 30-40 parts of polyacrylamide, 18-26 parts of polyaluminum chloride, 29-32 parts of kaolin, 90-120 parts of ionized water, 40-50 parts of corn germ meal. The treatment agent of the invention adopts high-quality environmentally friendly coconut shells, peach shells, walnut shells, jujube shells and other fruit shells, and is a kind of fruit shell activated carbon processed through a series of production processes, which has good wear resistance, developed gaps and high adsorption performance. It has the advantages of high strength, easy regeneration, economical durability and the like, and has a good treatment effect on textile wastewater after being mixed with corn germ meal.

The invention provides a preparation method of an activated carbon fiber. The method comprises the steps that cotton linters are immersed in a phosphate solution, dried, carbonized under the protection of nitrogen and then activated by water vapor to obtain the activated carbon fiber. According to the method, the cotton linters are adopted as raw materials, there is no need to purify or biologically process the raw materials, the preparation process is simple and quick, the production cost is low, and the obtained activated carbon fiber has a large specific surface area and can be used for wastewater adsorption and reused.

The invention discloses an advanced treatment method for Lurgi coal gasification wastewater, relates to a sewage treatment method and aims to solve the problems that the discharged Lurgi coal gasification wastewater after being subjected to advanced treatment by using the traditional biochemical method still cannot meet the standard and a physic-chemical method is high in cost when being used for carrying out advanced treatment on the Lurgi coal gasification wastewater. The method comprises the following steps of: firstly, coagulation and absorption treatment; secondly, high-density sedimentation treatment; thirdly, advanced oxidation treatment; fourthly, continuous aeration and batch stirring treatment; fifthly, batch aeration biotreatment; and sixthly, V-shaped sand filter treatment to finish advanced wastewater treatment. The advanced treatment method has the advantage that the final effluent obtained through treating the Lurgi coal gasification wastewater by using the method provided by the invention can meet the recycling standard. The advanced treatment method is mainly used for advanced treatment of the Lurgi coal gasification wastewater.

The invention provides a method for reducing the content of phenol in water through unburnt carbon in solid waste fly ash. The method includes the steps of fly ash flotation, unburnt carbon stirring and adsorption, centrifugal solid and liquid separation, detection and the like. Industrial solid waste fly ash is subjected to flotation to obtain the foam product, namely unburnt carbon; the unburnt carbon is added into sewage containing phenol to be adsorbed, solid and liquid separation is conducted by means of a centrifugal machine after adsorption is finished, and supernate is purified water obtained after treatment; the unburnt carbon removal rate of unburnt carbon in water is calculated. Fine granularity, large specific surface area and a rich porous structure of unburnt carbon are used for adsorbing and removing phenol in water, accordingly the content of phenol in water is reduced, and the effect of reducing waste by means of waste is achieved.

The invention discloses a fly ash-based porous material for removing fluorine, a preparation method and application thereof. By weight, the raw materials of the porous defluorination material include: 20-40 parts of fly ash, 20-50 parts of calcined coal gangue, fluoride ion adsorbent, 50-200 parts of water glass, 1-3 parts of foaming agent, Foam stabilizer 0.1-0.2 parts. The preparation method of the fly ash-based porous fluorine-removing material includes a raw material mixing step: mixing fly ash, calcined coal gangue, fluoride ion adsorbent, and foam stabilizer evenly according to the proportion, and then adding them to water glass to obtain a mixture Stirring step: the mixed material is stirred for the first time, then hydrogen peroxide is added, and the second stirring is carried out to obtain the mixed slurry; the forming maintenance step: the mixed slurry is subjected to molding treatment, and then maintained to obtain The fly ash-based porous fluoride removal material. The preparation method of the invention can achieve the purpose of using waste to make waste, and has excellent fluorine removal effect.

The invention discloses a preparation method of chrysanthemum morifolium tea with petals not easy to break. The method comprises the steps as follows: corncob powder and water are mixed, the mixture is filtered, dried, placed in a phosphoric acid solution to be soaked and filtered, filter residues are placed in a carbonization furnace to be carbonized, propolis and absolute ethanol are added, the mixture is stirred at the room temperature and placed in an autoclave to be stirred, a solvent is removed, lycopene, potato protein powder, fructooligosaccharide and fish gelatin are added and uniformly mixed, and a premix is obtained; chrysanthemum morifolium flowers are soaked in clear water, the premix is added, the mixture is stirred and filtered, the obtained chrysanthemum morifolium flowers are washed with clear water and spread until no water drops exist on petal surfaces and the petals are weathered, the petals are placed in a drying room to be dried and cooled to the normal temperature, a citric acid solution is sprayed, the petals are left to stand, placed in the drying room to be dried and then cooled, and the chrysanthemum morifolium tea with petals not easy to break is obtained.