49results about How to "Strong adsorption properties" patented technology

Provided are a modified nanometer bamboo charcoal mask and a manufacturing method thereof. The modified nanometer bamboo charcoal mask comprises an inner mask and an outer mask, wherein the inner mask is provided with a dismounting opening, and a filer layer is arranged in the dismounting opening. The inner mask and the outer mask of the mask and a filer layer base plate are made of an electrets melt-blowing polypropylene fiber non-woven fabrics, the filer layer uses chitosan as a capsule wall material, microcapsules are made from modified nanometer bamboo charcoal powder, beewax is used as an adhesive for arranging the microcapsules on the non-woven fabrics. The modified nanometer bamboo charcoal powder are modified by adopting nanometer titanium dioxide. The modified nanometer bamboo charcoal mask is green, environment-friendly, safe and efficient, has the broad-spectrum antibacterial effect and has good washability due to the fact that the beewax is used as the adhesive to arrange the microcapsules on the non-woven fabrics.

The invention relates to a DEAE dextran-modified agarose gel-based chromatography medium and a preparation method and application thereof. The method includes the steps that first, the molecular weight of DEAE Dextran for grafting is selected; next, the concentration of a DEAE Dextran aqueous solution is controlled; then, the time of diffusion before DEAE Dextran coupling is determined; finally, the reaction time of coupled DEAE Dextran and the concentration and volume of sodium hydroxide are determined. The DEAE dextran-modified agarose gel-based chromatography medium has a strong adsorption property for protein under different modification densities, shows a high adsorption capacity and a high adsorption rate and improves separation efficiency. The medium is convenient to clean and degerm, easy to regenerate and good in biocompatibility. The preparation method is simple and harmfulless and has broad application prospects in efficient and rapid separation and purification of protein.

The invention discloses a wood-based composite material for photo-thermal purification of sewage as well as a preparation method and application of the wood-based composite material, and belongs to the technical field of photo-thermal conversion. According to the method, after wood is subjected to vacuum impregnation through an MOF precursor solution, a metal organic framework material grows in wood pore channels, and the wood-based composite material for photo-thermal evaporation and heavy metal ion removal is prepared. The polydopamine photo-thermal material in the composite material can convert a solar spectrum into heat energy, so that purified water evaporation is efficiently carried out; the wood substrate can effectively reduce heat conduction loss, heat concentration is achieved, and the photo-thermal conversion efficiency is improved; in addition, the hydrophobic property of the wood accelerates the transmission and evaporation of water; the porous MOF nano material can adsorb pollutant ions. The aim of removing ions in the sewage is fulfilled. The composite material provided by the invention is low in preparation raw material cost, simple and convenient in process, high in repeatability and easy for large-scale production, and has a wide application prospect in multidisciplinary crossing fields such as seawater desalination and sewage purification.

The invention provides an environment-friendly bamboo charcoal mask and a manufacturing method thereof. The mask comprises an inner mask body and an outer mask body, the inner mask body is provided with a detachment opening, a filtering layer is arranged in the detachment opening, the inner mask body, the outer mask body and the filtering layer are all made of electret melt-blown polypropylene fiber non-woven fabrics, chitosan serves as a capsule wall material of the filtering layer, nanometer bamboo charcoal powder serves as a core material to be made into micro capsules, and the microcapsules are arranged on the non-woven fabrics through beewax serving as adhesive agents. The chitosan, the bamboo charcoal powder and the beewax are all natural materials, the obtained product is environmentally friendly, safe and efficient and has a broad-spectrum antibacterial function, the microcapsules are arranged on the non-woven fabrics through the beewax serving as the adhesive agents, and good washability is achieved.

The invention provides water purification type solid waste pervious concrete, wherein the cementing material of the pervious concrete is a geopolymer and is prepared by mixing a solid waste material mainly containing silicon and aluminum, high-alkalinity red mud and a small amount of an alkali activator. The pervious concrete disclosed by the invention overcomes the defects of high production energy consumption and large environmental pollution of traditional pervious concrete, has the advantages of consuming a large amount of solid wastes, reducing exploitation of natural resources, reducingthe cost and the like, and also has the functions of purifying water and effectively protecting underground water resources.

The invention discloses a eutrophication deep treatment method for a landscape water body. The eutrophication deep treatment method particularly specifically comprises the following steps of 1), firstly, uniformly putting a microbial inoculum agent into the landscape water body, wherein the microbial inoculum agent passes through a dispenser placed on in a self sinking type flying-saucer-shaped water decanter; 2), adding a novel compound agent into the landscape water body which is treated for one week; 3), through arranging and planting multifarious aquatic plants on the self sinking type flying-saucer-shaped water decanter and being capable of arranging multiple layers of mutually alternant microbial medium oxidizers and a packing layers on the self sinking type flying-saucer-shaped water decanter, acting together with the aquatic plants to remove, together with the aquatic plants, nitrogen and phosphorus in the water body. The eutrophication deep treatment method can be used for effectively combining existing multifarious treatment methods, and can be used for effectively removing an organic matter and ammonia nitrogen in the water body, and through the novel compound agent isinnovated.

The invention provides a preparation method of spinel-structure lithium titanate. The preparation method comprises the following steps: 1, taking metatitanic acid produced in a process of producing titanium dioxide with a sulfuric acid method; preparing the metatitanic acid into slurry A with de-ionized water; 2, adding calcining seed crystals, which are widely used in a process of producing rutile-type titanium dioxide with the sulfuric acid method, into the slurry A, wherein the mass ratio of TiO2 in the calcining seed crystals to TiO2 in the slurry A is (2 to 20) to 100; after uniformly stirring, filtering and washing with water; stopping water washing when the pH (Potential of Hydrogen) value is greater than 1.8; adding de-ionized water into a filter cake to prepare slurry B with the TiO2 concentration of 200g/L to 400g/L; 3, adding a lithium source into the slurry B according to the mole ratio of Li to Ti of 0.82 to 0.97; sufficiently and uniformly stirring to obtain slurry C; 4, conveying the slurry C into a rotary kiln; heating and calcining to finish dehydration, desulfurization and crystal form transformation to prepare the spinel-structure lithium titanate. According to the preparation method provided by the invention, all the methods are slurry processes, and dry-method crushing and grinding do not need to be carried out before the crystal form transformation is finished by heating so that energy consumption is low; a titanium source is cheap and easy to obtain.

According to the antibacterial durable PE composite particle disclosed by the invention, carbon black and an inorganic metal antibacterial agent are replaced by nano-modified bamboo charcoal plastic particles, so that the PE composite particle has good anti-aging and antibacterial properties and is more durable; the nano modified bamboo charcoal plastic particles are prepared from the nano titanium dioxide-zinc dioxide composite powder and the nano bamboo charcoal powder, and the bamboo charcoal is rich in potassium, sodium, calcium, aluminum, manganese and other metal elements and carbides thereof, especially calcium carbide, so that the nano modified bamboo charcoal plastic particles have favorable ultraviolet resistance. Titanium dioxide and zinc oxide are two common inorganic ultraviolet shielding agents, but the shielding capacities of the two inorganic shielding agents are different, the UVB blocking effect of nano titanium dioxide is very good, but the UVA shielding effect is poor; and the shielding effects of the nano zinc oxide are opposite. Therefore, the nano-modified bamboo charcoal plastic particles have triple anti-ultraviolet effects.

The invention belongs to the field of treatment of wastewater of thermal power plants, and particularly relates to a method for removing heavy metal ions from wastewater of a thermal power plant. Application of the method for removing the heavy metal ions from the wastewater of the thermal power plant is finished before desulfurization wastewater is introduced into recovery treatment, and the method comprises the following specific steps of: (1) introducing the desulfurization wastewater into a first fluidized bed from the bottom of the first fluidized bed which is filled with a quartz sand filter material, connecting the bottom of the first fluidized bed with a NaOH solution tank and a KMnO4 solution tank, and introducing a NaOH solution and a KMnO4 solution together into the first fluidized bed from the bottom of the first fluidized bed while the desulfurization wastewater is introduced into the first fluidized bed from the bottom; and controlling the pH value in the first fluidizedbed between 7.5 and 11 according to a conventional method. Through the method, the density of mud produced by the process can reach 2.5-3.0 kg/L, and the water content is less than 20% after dehydration is conducted; and when the method is compared with a traditional chemical precipitation method, the amount of the mud produced through the fluidized bed method is less than 25%.

The invention relates to garment fabric and a processing process thereof. The garment fabric is woven by warps and wefts, wherein the warps are blended by photochromic resin and corn fibers, the photochromic resin is the mixture of photochromic dye monomer particles and thermoplastic resin, and the wefts are blended by bamboo carbon fibers and flame-retardant fibers. The garment fabric is simple in process, soft, comfortable and excellent in flame retardance, fatigue resistance and color changing performance.