32results about How to "Adsorption" patented technology

The invention relates to the field of treatment to heavy metal pollution in water and soil, in particular to a preparation method of multi-site activated and modified reed-lutarioriparius biochar andapplication thereof to removal of heavy metals zinc and cadmium. The preparation method comprises the following steps: firstly washing, drying and crushing reed-lutarioriparius biomass, ultrasonicallystirring in an aqueous manganese ore powder solution thoroughly, then performing low-temperature hydrothermal carbonization to produce unactivated and unmodified biochar, then soaking the biochar ina calcium chloride-hydrogen peroxide mixed solution, activating a biochar-calcium chloride-hydrogen peroxide mixed solution by using microwave, and then modifying the dried biochar through ultravioletradiation to obtain activated and modified biochar, wherein the obtained biochar is applied to the removal of the heavy metals zinc and cadmium in the water and the soil. An application method comprises the following steps: adding the activated and modified biochar into heavy metal zinc and cadmium wastewater for an adsorption reaction; or directly adding into heavy metal zinc and cadmium contaminated soil, thoroughly mixing uniformly, and aging for a period of time to complete bioremediation of heavy metal zinc and cadmium pollution in the soil.

The invention relates to the preparation and application of nano-iron-loaded amino-modified biological carbon. In this method, the biochar treated with deashing is used as the substrate, and its surface characteristics and reactivity are improved through amino modification; the nano-iron produced by the reaction is fully and uniformly loaded on the amino-modified bio-char, and the obtained nano-iron Amino-loaded modified biochar has stable properties, is not easy to agglomerate, and has a greatly increased adsorption capacity. Applying it to the degradation of heavy metal Cd can significantly reduce the problem of activity reduction caused by the agglomeration effect of nano-iron itself. The adsorption effect of biochar and the reduction effect of nano-iron are exerted, and the treatment effect is significantly enhanced.

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 heavy metal ion adsorbing material. The heavy metal ion adsorbing material is prepared from the following components as raw materials in parts by weight: 50-60 parts of a cyclodextrin-based cucurbituril-based triazine copolymer, 20-30 parts of hyperbranched polyethyleneimine and 5-10 parts of graphene oxide. A preparation method of the heavy metal ion adsorbing material comprises the following steps: adding all the raw materials into a screw extruder according to the weight ratio, and blending and performing extrusion molding at 230 DEG C to 250 DEG C to obtain the heavy metal ion adsorbing material. The heavy metal ion adsorbing material disclosed by the invention has the advantages of low cost, good adsorption effect on heavy metal ions, high adsorption capacityand easy desorption.

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 an adsorption material used in heavy metal sewage treatment, and particularly provides an adsorbent used in heavy metal containing sewage treatment, and a preparation method of the adsorbent. Rice hull powder serves as a base body, and after grafting modification through 4-vinylbenzoic acid and N-tert-butyl acrylamide, the adsorption effect of the rice hull powder on heavymetal ions is greatly improved; meanwhile, the adsorbent used in heavy metal containing sewage treatment and prepared from multiple components is further prepared by adopting the improved rice hull powder as the main raw material and combining polyacrylamide, an ethylene-vinyl acetate copolymer, a carbon nanotube, a compatilizer, a coupling agent and a foaming agent; and the adsorbent belongs toa foaming-type porous adsorbent and has better adsorption performance for the heavy metal ions in the sewage, meanwhile, the recovery cost of the adsorbent is low, a process is simple, and operation is easy.

The invention relates to the technical field of sintered brick production, in particular to a coal gangue sintered brick and a production process thereof. The coal gangue sintered brick is prepared from the following raw materials in parts by weight; 70- 90 parts of coal gangue, 10-15 parts of fly ash, 6-10 parts of gypsum, 4-6 parts of coal cinder, 5-8 parts of diatomite, 6-10 parts of hollow glass beads, 3-6 parts of furnace slag, 12-18 parts of sludge, 10-15 parts of sludge, 9-14 parts of construction waste soil, 16-21 parts of shale, 4-8 parts of a functional additive, 2.8-4.2 parts of a mineralizing agent, 2.3-3.5 parts of a fluxing agent, 2.0-2.6 parts of a flocculation agent and 1.8-2.5 parts of a cementing agent. The coal gangue sintered brick prepared by the process not only can reduce the waste of resources, but also realizes the purpose of changing waste into valuables, and accords with the concept of green development at present; furthermore, the coal gangue sintered brickproduced by the production process not only has good antibacterial performance, but also can adsorb harmful gases such as indoor formaldehyde or benzene; in addition, the strength and the plasticity of the coal gangue sintered brick are improved to a great extent and the quality of the coal gangue sintered brick is improved.

The invention discloses a polysiloxane block copolymer of grafted cysteine and a preparation method and application of the polysiloxane block copolymer. The method includes: through ring opening polymerization of active anions, triggering cyclic monomers of hexamethyl cyclotrisiloxane, trimethyl triethylene trioxide and the like to perform ring opening polymerization through n-butyllithium to obtain PDMS (polydimethylsiloxane)-b-PVMS; through radical addition reaction of sulfydryl-vinyl, leading N-acetylcysteine groups to vinyl containing blocks to obtain PDMS-b-(PDMS-g-Acys); finally, subjecting acetyl to hydrolysis under acidic condition to obtain PDMS-b-(PDMS-g-Cys). Solid materials are soaked in a PDMS-b-(PDMS-g-Cys) water solution, an adsorption layer of the block copolymer can be formed on the surface of the materials, and the effect that surface adsorption of protein is reduced is achieved.

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 relates to the field of heavy metal waste water treatment, and discloses a treatment method of mine pothole waste water containing heavy metals. The method comprises the steps that: mine pothole waste water containing heavy metals is delivered from the bottom of an absorption exchange column loaded with a heavy metal absorption material; the waste water is processed by the absorption exchange column, and is discharged from the top of the absorption exchange column. When the heavy metal ions in the mine pothole waste water containing heavy metals pass through the heavy metal absorption material, the heavy metal ions are absorbed on the surface of the heavy metal absorption material; when the heavy metal ions on the surface of the heavy metal absorption material are enriched to a saturated degree, a sulfuric acid solution with a certain concentration is used for desorbing the heavy metal ions absorbed on the surface of the heavy metal absorption material; the desorption liquid is subjected to electrodeposition, such that high-purity heavy metal materials are obtained. With the method provided by the invention, discharged pothole waste water can stably reach a standard, and metal recovery is also achieved. Therefore, enterprise efficiency and environmental safety are both ensured.

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 relates to a water quality improver, in particular to a water quality improver for aquaculture ponds, and also to a preparation method of the water quality improver. The water quality improver is prepared from the following components: finely ground banana peel, peppermint oil and potato decoction are subjected to low-temperature-shock-high-temperature repeated reaction for 2-3 times, soaked with mugwort leaves, phoenix leaves, lotus leaves, and enteromorpha After drying, it is fired, and then compounded with 150-mesh bentonite, 200-mesh bentonite, 600-800nm ​​diatomite powder and xanthan gum. The water quality improver of the present invention can improve pond water quality, reduce ammonia nitrogen and nitrite in aquaculture water, and improve water transparency and dissolved oxygen.

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 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.

The invention discloses a modified medical stone filter material for treating ammonia-nitrogen industrial wastewater and a preparation method of the modified medical stone filter material. The modified medical stone filter material is prepared by the steps of a, cleaning medical stone, and adding a hydrochloric acid solution for soaking to obtain acid-treated medical stone; b, adding into a mixedsolution consisting of carboxymethyl chitosan, sodium alginate and water, heating, stirring and reacting to obtain medical stone with a surface active group; and c, adding into a sodium hydroxide solution, soaking, reacting, filtering, adding a magnesium ammonium phosphate sinter and sodium bicarbonate, carrying out mold pressing, and drying to obtain the modified medical stone filter material fortreating ammonia-nitrogen industrial wastewater. The method has the beneficial effects that the medical stone filter material prepared by the method has surface active groups and good adsorption performance, not only can the adsorption effect of medical stone on ammonia and nitrogen be exerted, but also the removal capacity of the medical stone on ammonia and nitrogen in water can be improved through the adsorbability of the added magnesium ammonium phosphate sinter when the medical stone filter material is used for treating the ammonia -nitrogen wastewater. Meanwhile, the preparation processis simple, and the modified medical stone filter material is safe and environment-friendly and does not generate secondary pollution.

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 preparation method of a silane modified poly-ampholyte hydrogel high-adhesion coating with bacteriostasis and algae adhesion resistance, which comprises the following steps: mixing DAC, NaSS, a cross-linking agent, an initiator, deionized water and MEMO to obtain a prepolymer solution, covering the prepolymer solution on the surface of a base material subjected to hydroxylation treatment and silane treatment, and forming to obtain a hydrogel coating, the antibacterial and seaweed adhesion resistant silane modified polyampholyte hydrogel high-adhesion coating is obtained. The silane modified polyampholyte hydrogel is adopted, through the coupling effect of silane and the synergistic effect of DAC molecular chains and ionic bonds of the substrate, the hydrogel coating has the excellent bonding performance, meanwhile, the hydrogel coating has the good antibacterial performance and diatom adhesion resistance, and the hydrogel coating can serve as a preferred material of a marine antifouling coating. Wide application prospects are realized.

The invention discloses a polysiloxane block copolymer of grafted cysteine and a preparation method and application of the polysiloxane block copolymer. The method includes: through ring opening polymerization of active anions, triggering cyclic monomers of hexamethyl cyclotrisiloxane, trimethyl triethylene trioxide and the like to perform ring opening polymerization through n-butyllithium to obtain PDMS (polydimethylsiloxane)-b-PVMS; through radical addition reaction of sulfydryl-vinyl, leading N-acetylcysteine groups to vinyl containing blocks to obtain PDMS-b-(PDMS-g-Acys); finally, subjecting acetyl to hydrolysis under acidic condition to obtain PDMS-b-(PDMS-g-Cys). Solid materials are soaked in a PDMS-b-(PDMS-g-Cys) water solution, an adsorption layer of the block copolymer can be formed on the surface of the materials, and the effect that surface adsorption of protein is reduced is achieved.

The invention discloses a preparation method of a MOFs-coated high-conductivity multi-walled carbon nanotube composite material and its application in a potassium ion battery. One-dimensional linear MOFs-based composite material precursor powder is prepared by a simple room temperature liquid phase method , and then calcined in an inert atmosphere to obtain one-dimensional linear high-conductivity MWCNTs-CoO@C nanosphere composites. The MOFs-coated high-conductivity multi-walled carbon nanotube composites prepared by this method have superior potassium storage properties. , high electrical conductivity and structural stability, can be used as anode materials for high-performance potassium ion batteries. The potassium storage mechanism of the prepared MWCNTs‑CoO@C nanosphere composites is Co‑O‑C x +3K + +3e ‑ ⇌Co+K 2 O+KC x . The preparation method of the invention is simple, green, pollution-free, low in cost, and easy to prepare in large quantities.

The invention discloses an artificial rapid infiltration tank, a treatment process and a preparation method of an active biological filler. A water vapor treatment tank is provided with functional layers, the functional layers comprise a filler layer, a barrier layer and a supporting layer which are respectively used for culturing and inoculating microorganisms, carrying out grading filling and collecting water vapor, and the water vapor treatment process realizes purification treatment on wastewater and waste gas by utilizing an active biomass carbon filler. Compared with the prior art, the artificial rapid infiltration tank disclosed by the invention can realize dual purposes of water and gas purification, and is more sufficient in filler source, more controllable in cost, more controllable in quality uniformity of the filler, more reliable in safety, uniform in quality of the active biomass carbon filler, and more convenient to process, construct, manage and control. The phosphorus adsorption effect can be better exerted, and more space is fully utilized.

The invention relates to an adsorbent used in the treatment of heavy metal sewage, and specifically provides an adsorbent used in the treatment of heavy metal-containing sewage and a preparation method thereof. Rice husk powder is used as a substrate, and 4-vinylbenzoic acid and After N-tert-butylacrylamide graft modification, the adsorption effect of rice husk powder on heavy metal ions has been greatly improved. substance, carbon nanotubes, compatibilizer, coupling agent and foaming agent, prepared a multi-component adsorbent for heavy metal-containing sewage treatment, which belongs to a foaming porous adsorbent, for Heavy metal ions in sewage have better adsorption performance, and at the same time, its recovery cost is low, the process is simple, and it is easy to operate.

The invention discloses a heavy metal ion adsorption material, which is prepared from the following components by weight: 50-60 parts of cyclodextrin-based cucurbituril-based triazine copolymer, 20 parts of hyperbranched polyethyleneimine ‑30 parts, graphene oxide 5‑10 parts. The preparation method of the heavy metal ion adsorption material comprises the following steps: adding all raw materials into a screw extruder according to the weight ratio, blending and extruding at 230°C-250°C to obtain the heavy metal ion adsorption material. The heavy metal ion adsorption material disclosed by the invention has the advantages of low cost, good adsorption effect on heavy metal ions, large adsorption capacity and easy desorption.

The invention discloses a cyclodextrin-based cucurbituril triazine copolymer and a preparation method of the cyclodextrin-based cucurbituril triazine copolymer. The method comprises the following steps: dissolving allyl cucurbituril, allyl beta cyclodextrin, 1, 3-bis (oxiranyl methyl)-5-(2-propenyl)-1, 3, 5-triazine-2, 4, 6(1H, 3H, 5H)-triketone, an initiator and an emulsifier in a high-boiling-point solvent, stirring and reacting for 3-4 hours at 65-75 DEG C in a nitrogen or inert gas atmosphere, performing precipitating in water, and performing filtering; drying the product in a vacuum drying oven at 100-110 DEG C for 12-15 hours to obtain the cyclodextrin-based cucurbituril triazine copolymer. Cyclodextrin-based cucurbituril triazine copolymerization is applied to heavy metal ion adsorption materials, and the heavy metal ion adsorption materials have the advantages of being low in cost, good in heavy metal ion adsorption effect, large in adsorption capacity and easy to desorb.

The invention provides an environment-friendly water purification bag for water treatment and a preparation method of the bag. The environment-friendly water purification bag comprises a water purification material packing bag and a water purification material which is arranged in the water purification material packing bag; the water purification material packing bag is made of bamboo charcoal fiber; the water purification material comprises, by weight, 25-30 parts of palygorskite, 20-25 parts of diatomite, 10-15 parts of bentonite, 10-20 parts of vermiculite, 15-20 parts of modified loofah fiber, 5-8 parts of bamboo sawdust and 8-10 parts of charcoal powder. The raw components of the water purification material can be well compounded so that the components of the prepared water purification material can cooperate with each other and play a role, and the aim of synergistic interaction is achieved; the environment-friendly water purification bag can adapt to the treatment demands of different types of water, can efficiently remove pollutants in the water and achieves a good water purification effect; meanwhile, the water purification material packing bag body which is made of the bamboo charcoal fiber also has super high adsorption capacity and can cooperate and work with the water purification material in the bag body to remove the pollutants in the water.

The invention discloses a floating material. The floating material is prepared from biomass raw materials treated with weak acid, loaded with nano-hydroxyapatite, and then dried and pyrolyzed. The specific surface area of ​​the floating material is 322.16-370.46 m 2 / g, the average pore diameter is 6-9 nm. The invention also discloses the application of the floating material in repairing cadmium-contaminated soil, and at the same time, the invention also discloses a method and application for repairing heavy metal-contaminated soil based on the floating material, including adding the floating material to the heavy-metal-contaminated soil, Irrigation and ploughing make the soil of the plough layer and the floating material fully mixed and evenly aged, so that the floating material can fully enrich the heavy metals in the soil; add irrigation water to the field to make the floating material float on the water surface, and then recycle the floating material to remove the upper layer of muddy water mixture. The floating material in the present invention has the ability to float and highly enrich heavy metals, and at the same time, it can improve the soil.

The invention discloses a preparation method of an MOFs coated high-conductivity multi-walled carbon nanotube composite material and application of the MOFs coated high-conductivity multi-walled carbon nanotube composite material in a potassium ion battery, one-dimensional linear MOFs based composite material precursor powder is prepared by using a simple room temperature liquid phase method, and then the one-dimensional linear high-conductivity MWCNTs-CoO@C nanosphere composite material is prepared by calcining in an inert atmosphere. The MOFs coated high-conductivity multi-walled carbon nanotube composite material prepared by the method has excellent potassium storage performance, high conductivity and structural stability, and can be used as a negative electrode material of a high-performance potassium ion battery. The potassium storage mechanism of the prepared MWCNTs-CoO@C nanosphere composite material is Co-O-Cx + 3K + + 3e- to Co + K2O + KCx and Co + K2O + KCx to Co-O-Cx + 3K + + 3e-. The preparation method disclosed by the invention is simple, green, pollution-free, relatively low in cost and easy for large-scale preparation.