32results about How to "Adsorption" patented technology

The invention discloses biochar capable of adsorbing heavy metals and a preparation method of the biochar, the biochar comprises shaddock peel biochar, and the biochar is prepared by the following method: cutting shaddock peel into pieces, cleaning with water to remove impurities, drying to constant weight, crushing and sieving; adding absolute ethyl alcohol and NaOH, mixing and stirring, adding aMgCl2 solution, mixing and soaking, carrying out suction filtration, washing with water until the pH value is neutral, and drying; and putting the dried shaddock peel into a tubular furnace, heatingto 300-600 DEG C in vacuum, calcining, and cooling to obtain the product. The method has the advantages of easily available raw materials, low cost, easy popularization and application, high efficiency, economy, environmental protection and the like. Through a large number of experimental screening, shaddock peel and other wastes are fully utilized, waste is turned into wealth, and the product isprepared through a preferred process. Comparison experiment screening results show that compared with unmodified biochar, the biochar obtained after the shaddock peel is modified through a specific process has a better pore structure and a better heavy metal adsorption capacity.

The invention discloses a graphene melt-blown fabric, a manufacturing process and a protective article thereof. Graphene powder is adhered to melt-blown fabric fibers in a distribution mode, the adhesion is that graphene powder particles are partially embedded into the melt-blown cloth fibers, or the graphene powder is adhered to the surfaces of the melt-blown cloth fibers, or the graphene powderis adhered to the fibers in a coating mode, and the graphene melt-blown fabric is compounded with non-woven fabric and then can be used for manufacturing the graphene melt-blown cloth protective article. The graphene melt-blown fabric has high adsorption and filtration performance, is capable of effectively removing harmful gas and preventing static electricity and tearing-resistant, and have better anti-virus and antibacterial effects.

The invention relates to a high-temperature phase-change heat storage composite material and a preparation method thereof. According to the technical scheme, the method comprises the steps that ternary aluminum-based alloy powder is alternately washed with an acid solution and deionized water, dried in a protective atmosphere and placed in pressurized steam to be pretreated, and the pretreated ternary aluminum-based alloy powder is obtained; the pretreated ternary aluminum-based alloy powder is put into aluminum sol for vacuum impregnation, taken out, filtered, put into silica sol for vacuum impregnation, filtered, and taken out; the steps are repeated for 3-5 times according to an alternate impregnation method, and filtering and drying are performed to obtain the pre-coated ternary aluminum-based alloy powder; and the pre-coated ternary aluminum-based alloy powder is put into a high-temperature furnace, fired at 1100-1400 DEG C under an air atmosphere condition, and cooled to obtain the high-temperature phase-change heat storage composite material. The preparation method is simple in process, low in cost and easy for industrial production, and the prepared high-temperature phase-change heat storage composite material is high in shell strength, high in phase-change temperature, high in heat storage density, high in heat utilization rate and high in utilization efficiency, and is suitable for solar power generation, high-temperature industry and the like.

The invention provides a method for processing perfume wastewater through a Fenton combination process, and relates to the technical field of environmental protection. The perfume wastewater is processed through the flocculation, iron carbon reduction, Fenton oxidization, magnetization, ultraviolet and microorganism processing combination process, the COD and color degree of the perfume wastewaterare greatly reduced, the biodegradability of the perfume wastewater is remarkably improved, and the further processing difficulty of the perfume wastewater is reduced; the investment of process processing units and devices is reduced, and the processing efficiency and effect of the process are improved.

The invention discloses a method for preparing titanium dioxide by integrating adsorption and photocatalysis, which is characterized in that dodecyl-2-pyridine-methylamine is taken as a template, performed hydro-thermal reaction under ethanol-water system condition, an ethanol-hydrochloric acid solution is used for extracting the template to obtain an intermediate, a water passivation method is used for processing to obtain the titanium dioxide by integrating adsorption and photocatalysis. Compared with current materials, the adsorption, catalysis and moisture resistance of the prepared material under high wind speed (short connection time) condition possess substantial superiority, the method of the invention possesses wide application prospect in the indoor air pollution treatment field.

The invention discloses a drying agent and a preparation method thereof. The drying agent is prepared from the following components in percentage by weight: 30-40% of magnesium chloride, 7-9% of activated carbon, 45-56% of chitosan, 3-5% of pelargonium odoratissimum essential oil, 1-2% of mint essential oil, and 1-3% of lavender essential oil. The components are directly and uniformly mixed so that the drying agent can be obtained. The drying agent concurrently has the effects of moisture absorption, bacterium resistance and incensing, under the condition of the temperature being 30 DEG C and the humidity being 90%, after 15 days, the moisture absorption of the drying agent can reach 380% or above of the self weight of the drying agent, and besides, no liquid water permeates out.

The invention relates to a biodegradable filling for the restoration of an alveolar bone, comprising first crosslinking type collagen fibers and supporting granules, wherein the first crosslinking type collagen fibers are prepared by reacting a crosslinking agent with non-crosslinked collagen fibers; and the supporting granules are biomedical ceramic granules, bioactive glasses or combinations ofthe biomedical ceramic granules and the bioactive glasses and distributed in the first crosslinking type collagen fibers.

The invention discloses an auxiliary dust removal device for an electric drilling machine. The auxiliary dust removal device comprises a main hollow shell, wherein multiple rollers are mounted at thebottom of the main hollow shell; a liquid storage space is arranged on one side in the main hollow shell; a turbine mounting space is arranged on the other side in the main hollow shell; and a liquidinjection pipeline forming an integrated structure with the main hollow shell is arranged at the top of one side of the main hollow shell. The auxiliary dust removal device for the electric drilling machine can suck dust, produced during working of the electric drilling machine, in time; and furthermore, after the device sucks the dust, the dust can be injected into liquid; by use of the adhesionproperty and the suction property of water, the dust is effectively filtered, so as to reduce the density of the dust. In addition, the device is provided with a dust suction telescopic type pipelinemechanism, so that the device can achieve dust suction effects on different drilled parts by adjusting the horizontal height and is high in applicability; and furthermore, with a drill bit part dust suction mechanism, the device can achieve a dust suction effect on a dust production part.