141results about How to "High adsorption rate" patented technology

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The invention relates to the technical field of preparation of phase-change materials, in particular to a steel slag-based porous ceramic composite phase-change material and a preparation method thereof.According to the preparation process, a sacrificial template method and a foaming agent pore-forming method are combined, waste polyurethane foam and waste wood pulp sponge are used as templates, industrial solid wastes (steel slag, fly ash and rice hull ash) are used as raw materials, and the steel slag-based porous ceramic composite phase-change material is prepared. The steel slag-based porous ceramic is prepared. The steel slag-based porous ceramic composite phase change material is prepared by using the prepared steel slag-based porous ceramic as a carrier vacuum adsorption phase change material. According to the invention, resource utilization of wastes is promoted, and environmental pollution caused by industrial solid wastes, biomass wastes and plastic wastes is reduced. The steel slag-based porous ceramic with abundant pore structures and the steel slag-based porous ceramic composite phase change material with good thermal performance and thermal cycle performance are prepared by adjusting the proportion of the raw materials, the porosity of the porous template and the impregnation vacuum degree. The preparation method is simple and suitable for large-scale production.

The invention relates to a preparation method and application of pore channel hydrophobic modified activated carbon, the preparation method adopts organosilane as a modifier, granular activated carbon is modified into pore channel hydrophobic modified activated carbon by a soaking method, the preparation conditions are green, efficient and mild, and the pore channel hydrophobic modified activated carbon cannot be crosslinked to block pores in the high-temperature modification process; the internal developed pore structure of the pore channel hydrophobic modified activated carbon is subjected to sufficient hydrophobic modification, and the water absorption rate of the granular activated carbon is greatly reduced, so that the adsorption rate of organic pollutants in high-humidity waste gas is remarkably improved; the use efficiency of the granular activated carbon is obviously improved in the working condition of practical application; the porous hydrophobic modified activated carbon prepared by the preparation method is applied to high-humidity organic waste gas treatment.

The invention belongs to the technical field of catalyst preparation, and particularly relates to a TiO2 / Co3O4 / AgBr ternary heterojunction composite material as well as a preparation method and application thereof. According to the invention, AgBr particles are introduced to carry out surface modification on a binary material to form a point-to-surface contact heterojunction, so that the electron transfer efficiency is improved, the electron-hole separation is accelerated, the oxidative degradation performance of the catalyst is improved, and the photocatalytic activity is further improved. When the TiO2 / Co3O4 / AgBr ternary heterojunction composite material provided by the invention is used for carrying out adsorption treatment on antibiotics in a water body, better stability and adsorption rate can be shown, and the TiO2 / Co3O4 / AgBr ternary heterojunction composite material has great commercial popularization potential.

The invention relates to an automatic material supply device based on an industrial automatic control system and a using method thereof. The invention belongs to the technical field of material supply. Comprising a feeding machine, and a pulverizer, a sliding block, a metal adsorption assembly, a filtering assembly and a feeding box are arranged in an inner cavity of the feeding machine from top to bottom; the metal adsorption assembly comprises a roller arranged in an inner cavity of the feeding machine, rotating plates are evenly installed on the outer side wall of the roller, and switch magnets are arranged at the ends, away from the roller, of the rotating plates. Automatic crushing, conveying and metal adsorption of materials are achieved, the automation degree and efficiency of material treatment are greatly improved, and the labor cost is reduced.

The present invention provides a desulfurization wastewater zero discharge device, including a sedimentation tank, a suction pump, a purification tank, a fixed plate, a filter membrane, a motor, a slag discharge pipe, a ball valve, a water outlet pipe and a liquid inlet pipe, the upper outer surface of the sedimentation tank is provided with a medicine storage box, the outer surface of one side of the sedimentation tank is penetrated with a first connecting pipe, one end of the first connecting pipe is fixedly connected to the inside of the sedimentation tank, and the other end is connected to the input end of the suction pump, the output end of the suction pump is fixedly connected with a second connecting pipe, and the end of the second connecting pipe away from the suction pump is fixedly connected to the inside of the purification tank, the lower outer surface of the medicine storage box is provided with a medicine outlet pipe, and one end of the medicine outlet pipe is connected to the medicine storage box, and the other end is located inside the sedimentation tank, and a valve is provided in the middle of the medicine outlet pipe. The present invention can effectively reduce the production cost and labor cost of the device, and improve the automation rate and promotion scope of the device.

The utility model relates to the technical field of water treatment devices, in particular to an electromagnetic separation water treatment device which comprises a treatment box, sliding openings are symmetrically formed in the top of the treatment box, cleaning sleeves are fixedly connected to the interiors of the sliding openings, sleeves are movably inserted into the cleaning sleeves, iron cores are fixedly arranged in the sleeves, and the iron cores are fixedly connected with the sliding openings. The outer portion of the iron core is fixedly sleeved with a coil, and a servo motor is fixedly arranged on the inner wall of the treatment box through a supporting rod. The stirring rod is driven by the servo motor to rotate, a rotating magnetic field can be generated to induce sewage to form eddy current, the adsorption probability that pollutants collide with an iron core and a coil is increased, the treatment time is shortened, and the stirring rod can drive the cleaning rod to rotate while rotating, so that substances attached to the inner walls and the bottoms of the treatment box and the bottom cover are effectively scraped; and the treatment box can be separated from the bottom cover in the later period, so that the maintenance is convenient.

The invention discloses a preparation method and application of microfibrillated silk fiber aerogel. The preparation method comprises the following steps: by taking waste silk fibers processed and produced in factories as raw materials, carrying out chemical and mechanical pretreatment and silane coupling agent hydrophobization modification, and then preparing the aerogel material by utilizing a vacuum freeze-drying method. Silk fibers which are rich in resources and low in price are used as raw materials, the preparation cost can be remarkably reduced, the production process is simplified, the prepared microfibrillated silk fiber aerogel has the excellent performance of low cost, low density, high porosity, biodegradability and the like, various organic solvents and oil pollutants in sewage can be efficiently adsorbed, and the microfibrillated silk fiber aerogel has a good application prospect. The adsorbent is high in adsorption capacity, high in rate, good in mechanical property, capable of being repeatedly used, good in heat preservation and heat insulation performance and easy to degrade after being used.

The invention discloses a wiring terminal production laser cutting device and process, and relates to the field of laser cutting devices.The wiring terminal production laser cutting device comprises a machine body, bases are symmetrically installed at the top of the machine body, and the tops of the bases are connected with a positioning plate through air cylinders; a dust collection wave tube is rotationally arranged at the top of the positioning plate, a swing range adjusting assembly for the dust collection wave tube is arranged in the positioning plate, the two sides of the dust collection wave tube are connected with the inner side faces of the long ends of side plates, and the side plates and the dust collection wave tube form a fan-shaped dust collection structure; a base plate is arranged on the outer end face of the positioning plate, a clamping spring is arranged between the outer end face of the positioning plate and the base plate, and a pre-tightening force adjusting assembly of the clamping spring is arranged in the positioning plate. According to the laser cutting device and process for wiring terminal production, through linkage operation of clamping positioning, synchronous dust collection range adjustment, reciprocating swing dust collection and pre-tightening force adjustment, wiring terminal clamping, cutting dust efficient cleaning and clamping force self-adaption are achieved, and the laser cutting quality is improved.

This application relates to a storage silo, specifically to the field of storage equipment. The silo includes a silo body and an adsorption assembly. The silo body has an inlet and an outlet, and the adsorption assembly includes several magnetic rods disposed on the inner wall of the outlet. This application uses magnetic rods to adsorb metal particle impurities mixed in with rubber and plastic granules, completing impurity removal during the discharge stage, thus achieving both high efficiency and effectiveness in removing metal impurities.

The invention discloses a method for preparing a hydroxyapatite-modified carbon nitride (HA / g-C3N4) composite material having both heavy metal ion adsorption and visible light catalytic performance, and the steps are as follows: dissolving melamine and thiourea in deionized water, stirring evenly, then adding HA for ultrasonic dispersion, transferring the resulting solution to a reactor for reaction at 180°C for 12 hours, cooling to room temperature and filtering, drying the filter cake to obtain a HA / g-C3N4 composite material precursor; grinding the precursor evenly in an agate mortar, placing the ground powder in a crucible, and calcining to obtain a HA / g-C3N4 composite material. The HA / g-C3N4 composite material prepared by the method has the advantages of simple and rapid preparation process, easy operation, environmental protection, large product yield, simple post-processing, and controllable product morphology, size and composition, etc., especially in the field of heavy metal ion adsorption and visible light degradation of pollutants, and has good application prospects.

This disclosure relates to a method for recovering valuable elements from electrolytic manganese leaching residue. The method includes: feeding electrolytic manganese leaching residue slurry into a leaching tank and mixing it with sodium cyanide solution for leaching treatment to obtain a leaching slurry; introducing the leaching slurry and sodium cyanide solution into an adsorption unit and mixing it with activated carbon for adsorption treatment to obtain mixed tailings and mixed gold-loaded carbon; the adsorption unit includes multiple adsorption tanks arranged in series; introducing the leaching slurry from a first-stage adsorption tank into the adsorption unit, obtaining mixed tailings from the last-stage adsorption tank; introducing activated carbon from the last-stage adsorption tank into the adsorption unit, obtaining mixed gold-loaded carbon from the first-stage adsorption tank; subjecting the mixed gold-loaded carbon to a first screening to obtain gold-loaded carbon and first gold-loaded powdered carbon; and subjecting the mixed tailings to a second screening to obtain second gold-loaded powdered carbon and leaching tailings. Using the method of this disclosure can reduce operational difficulty, improve the recovery rate of valuable elements, and increase the adsorption rate of valuable elements by activated carbon.

The invention provides a method for separating germanium from a sulfuric acid solution by preparing a composite germanium adsorbent through in-situ polymerization, and relates to the technical field of germanium adsorption separation. The method comprises the following steps: firstly, preparing a carbon-based carrier to obtain a carbon carrier; oxidizing the carbon carrier to obtain a surface oxidized carbon carrier; the preparation method comprises the following steps of: firstly, performing in-situ polymerization grafting of tannic acid to obtain a high-acid stable adsorbent, and finally, putting the adsorbent into a germanium-containing sulfuric acid medium solution to adsorb germanium. According to the method, the problems of high tannin consumption, deterioration of solution quality and difficulty in reutilization of tannin in a traditional tannin germanium precipitation process are solved, and the prepared carbon / tannin complex adsorbent is stable in a high-acid system and can realize adsorption separation of germanium in a sulfuric acid solution.

The invention provides a bentonite / graphite composite mycotoxin adsorbent as well as a preparation method and application thereof, and the method comprises the following steps: uniformly mixing calcium bentonite powder, transition type bentonite powder, sodium bentonite powder, sodium modified bentonite powder and graphite powder to obtain a powdery bentonite / graphite composite mycotoxin adsorbent; the preparation method also comprises the following steps: uniformly mixing the powdery bentonite / graphite composite mycotoxin adsorbent and a binder in proportion, granulating, and drying to obtain the granular bentonite / graphite composite mycotoxin adsorbent. The prepared composite mycotoxin adsorbent can be used for adsorbing and removing mycotoxin in the feed industry, has efficient adsorption performance on aflatoxin B1 and zearalenone at the same time, is simple in process, low in production cost and easy to produce on a large scale, and has high economic benefits and social benefits.

The present invention relates to a preparation method for a titanium-based lithium ion exchanger. The method includes the following steps: step 1, preparation of lithium metatitanate precursor, namely, uniformly mixing titanium source, lithium source and water in proportion by ball milling, adding an adjuvant, and allowing reaction by ultrasonic heating and stirring, so as to obtain the lithium metatitanate precursor powder; step 2, preparation of lithium metatitanate powder, including spray drying and microwave calcination with the lithium metatitanate precursor to obtain the lithium metatitanate powder; and step 3, elution and replacement, namely, leaching out Li with an eluent to obtain lithium ion exchanger. The preparation method is a solid-liquid phase contact reaction, the ratio of raw materials is easy to be accurately controlled. The synthesis reaction is strengthened by ultrasound, so as to accelerate the reaction, and the energy consumption is effectively reduced by microwave calcination. Titanium is controlled at a relatively excessive proportion, so as to prepare the lithium metatitanate powder with high porosity and good filterability. The prepared lithium ion exchanger has good lithium extraction performance and low solution loss of titanium, which satisfy the requirements for practical use.

The invention discloses a zeolite rotating wheel adsorption device and a use method thereof, and relates to the technical field of waste gas treatment equipment.The zeolite rotating wheel adsorption device comprises a zeolite rotating wheel, a gas homogenizing mechanism is arranged in the zeolite rotating wheel and comprises a rotating shaft penetrating through the middle of the zeolite rotating wheel, a second motor is distributed at the end of the rotating shaft, and the output end of the second motor is connected with the rotating shaft; two blades which are symmetrically distributed are fixed in the middle of the rotating shaft and are distributed in the zeolite rotating wheel; a cleaning mechanism is arranged in the support and comprises two-way threaded grooves symmetrically formed in the two ends of the outer side of the rotating shaft, brush rods are in threaded connection with the outer sides of the two-way threaded grooves, and a plurality of sets of stainless steel bristles are fixed to the side faces of the brush rods. And a repairing mechanism is arranged in the cleaning mechanism. According to the zeolite rotating wheel adsorption device and the use method thereof, the effects of self-cleaning and improving the working efficiency of equipment are achieved.

The invention discloses a synergistic adsorption plate for coating deposits in a vacuum coating machine, relates to the technical field of coating, and comprises a substrate plate; a sandblasting layer is arranged on the substrate plate, a normal temperature spraying layer is arranged on the sandblasting layer, and a thermal spraying layer is arranged on the normal temperature spraying layer; the air pressure of the sandblasting layer during sandblasting is 0.1-3 Kgf / cm², the sandblasting particles adopt 10-80 mesh brown corundum, and the roughness Ra of the sandblasting layer is 3-8 μm; the normal temperature spraying layer comprises, in terms of mass percentage, 30-60% of an adhesion promoter, 0-40% of a polyurethane resin, and 0-40% of an epoxy resin, and the thickness of the normal temperature spraying layer is 0.5-1 μm; the roughness of the synergistic adsorption plate of the invention is between 30-80 μm, and compared with the existing adsorption plate products with a roughness of less than 25 μm, it has a better effect of adsorbing deposits, increases the adsorption rate by ≥30%, and increases the yield by ≥10% and prolongs the service life after verification by a vacuum coating machine.

This invention relates to the field of extraction, specifically to a method for producing a supramolecular red ginsenoside extract. The extraction process includes the following steps: S1, pulverizing and sieving red ginseng to obtain red ginseng powder; S2, adding the red ginseng powder obtained in step S1 to a solvent, heating and refluxing for extraction, concentrating and drying to obtain a crude extract; S3, preparing a loading solution from the crude extract obtained in step S2, eluting through an adsorption resin packed column, collecting the eluent, concentrating and drying to obtain the red ginsenoside extract. The production method of this invention can shorten the number of extraction steps and increase the total saponin content in the extract.

This invention discloses a magnetic nano-adsorbent material, which is a magnetic composite nanosphere modified with silane on its surface. The magnetic nano-adsorbent material has a core-shell structure, and the silane modification includes hydrophilic and lipophilic groups. The hydrophilic and lipophilic groups modified with silane exhibit excellent synergistic effects in improving the adsorption rate of drugs, especially tetrahydrocannabinol (THC-COOH), NKET, and 6-AM, demonstrating a significant improvement in adsorption efficiency. This allows for efficient and selective enrichment and purification of multiple illicit drugs in water. Furthermore, the magnetic nano-adsorbent material of this invention possesses strong magnetism, allowing for rapid separation of the adsorbent material using a magnet, achieving rapid solid-liquid separation, and enabling material recycling and regeneration. This invention employs a sol-gel method to prepare the magnetic nano-adsorbent material, which has simple synthesis conditions, a short one-pot synthesis time, and results in magnetic nano-adsorbent materials with good monodispersity and uniform particle size.

The invention discloses an ammonium phosphomolybdate composite silane modified polyacrylonitrile material as well as a preparation method and application thereof in cesium adsorption. The invention belongs to the field of nuclear industry wastewater purification treatment. The technical problems that a purification material is poor in cesium adsorption effect, difficult to recycle and the like are solved. According to the ammonium phosphomolybdate composite silane modified polyacrylonitrile material prepared by the invention, the polyacrylonitrile material is modified by using a silane coupling agent, and then the ammonium phosphomolybdate is embedded into a porous matrix of the silane modified polyacrylonitrile material by using an in-situ polymerization method, so that the adsorbability of an adsorbent to cesium is improved, and the adsorption rate of the material to cesium is improved. The method is simple in preparation process, convenient to operate, low in product raw material price and high in yield, materials for adsorbing pollutants are convenient to recycle, the adsorbed pollutants are also convenient to separate and recycle, and industrial cesium recycling is facilitated.

This utility model discloses a pressure swing adsorption (PSA) oxygen generation adsorption tower, relating to the technical field of gas separation equipment, including a tower body structure, a base structure, a pressure swing structure, and a transmission structure. The tower body structure sequentially comprises an inlet chamber, a first molecular sieve layer, an intermediate chamber, a second molecular sieve layer, and an outlet chamber. The base structure converts rotational motion into linear reciprocating motion via a drive motor, a geared disc, a transmission wheel, and an eccentric rod. The pressure swing structure includes a first air bladder and a second air bladder connecting the inlet chamber and the intermediate chamber, with spring-loaded pressure plates connected to their bottoms. The transmission structure drives a first cam and a second cam with a 90° phase difference via a rack and pinion to alternately compress the air bladders. During operation, the compression of the first air bladder increases the air pressure in the inlet chamber, while the expansion of the second air bladder reduces the air pressure in the intermediate chamber, creating a pressure difference that accelerates gas transport; conversely, it enhances the inlet efficiency. This design integrates a self-generating gas pressure mechanism, eliminating the need for an external gas source system, and offers advantages such as compact structure, low energy consumption, and high gas transmission efficiency.

The present invention relates to a method for efficiently desorbing gold-loaded carbon from gold-containing sulfide ore by carbon leaching, which belongs to the field of gold smelting. The specific steps are as follows: (1) dispersing and desludging the gold-loaded activated carbon obtained in the carbon leaching process, and separating the gold-loaded activated carbon from muddy water by a vibrating screen; (2) transporting the activated carbon obtained in the above step (1) to a circulating conversion column, treating it with a conversion agent, and obtaining calcium carbonate-containing gold-loaded activated carbon, wherein the conversion agent is a mixed solution of sodium carbonate and sodium hydroxide; (3) transporting the gold-loaded activated carbon obtained in the above step (2) to a circulating desorption column, transporting the obtained gold-containing precious liquid to an electrolysis system, and transporting the lean activated carbon to acid washing and decalcification, wherein the desorbent is a mixed solution of sodium carbonate, sodium hydroxide and sodium cyanide. The present invention avoids the normal operation of the gold-loaded activated carbon circulating desorption system by calcium sulfate or calcium hydroxide; at the same time, the difficult-to-desorb calcium auric cyanate is also converted into easily desorbable sodium auric cyanate, thereby improving the gold desorption rate of the gold-loaded activated carbon.

The application discloses a kind of amidoxime materials and its preparation method and application, belong to heavy metal adsorption material field.Amidoxime material in the application is prepared by Schiff base reaction, addition reaction and metal loading, catalyst and regulator need to be added in the process of Schiff base reaction to form specific morphology in preparation process, and monomer in the process of addition reaction also needs to have cyano and mercapto simultaneously, to provide fixed basis for subsequent metal loading process and respond to heavy metal to be adsorbed.Amidoxime group in the amidoxime material in the application has strong multidentate coordination ability, can adsorb heavy metal ions, and reducing agent used in the process of metal loading can reduce heavy metal ions, so that the amidoxime material has adsorption and reduction performance simultaneously.

The present application belongs to the technical field of metallurgical engineering, and mainly relates to a method for wet mercury extraction from cinnabar based on composite leaching and modified resin adsorption. The method comprises the following steps: adding cinnabar concentrate into dilute sulfuric acid, filtering the impurity-removed cinnabar after stirring and reaction; mixing the impurity-removed cinnabar with a composite leaching solution, and stirring and leaching to obtain a mercury-containing complex solution; the composite leaching solution is a mixed solution of a complexing agent and ferric sulfate; after the mercury-containing complex solution is adsorbed by a modified thiourea type chelating resin, a mercury-containing desorption solution is obtained by desorption, and the mercury-containing desorption solution is subjected to electrolytic deposition to obtain metallic mercury. The method realizes efficient extraction of cinnabar reselected and flotation concentrate, recycling of waste water and harmless utilization of solid waste, and has significant advantages in leaching efficiency, environmental protection and raw material adaptability, and has broad industrial application prospects.

The invention relates to the technical field of biological adsorbents, and discloses and particularly relates to a highland barley vinasse formaldehyde adsorbent and a preparation method and application thereof.The highland barley vinasse formaldehyde adsorbent is obtained by placing highland barley vinasse in a NaOH solution, increasing the hydroxyl content in the highland barley vinasse through the NaOH solution and conducting alkali blanching treatment at 52-68 DEG C for 13-47 min; the mass volume ratio of the highland barley vinasse to the NaOH solution is 10 g: 50 mL-55 mL; the concentration of the aqueous alkali is 0.1 mol / L to 0.5 mol / L. The highland barley vinasse formaldehyde adsorbent has a good adsorption effect on formaldehyde, and the highest formaldehyde adsorption rate can reach 22.6%.

The present application relates to a kind of centrifugal uniform seed - double-hole interaction type corn plot precision seed metering device, including seed metering device front shell, type hole rotating disc, suction hole disc, fixed disc, tooth type seed wheel, driving shaft, connecting key, seed metering device rear shell, fixed pin shaft, edge shaft, driving gear, centrifugal wheel;Type hole rotating disc, suction hole disc, fixed disc, centrifugal wheel jointly formed centrifugal seed - double-hole interaction seed cavity filling area, type hole rotating disc, fixed disc, suction hole disc coaxial installation, type hole rotating disc and tooth type seed wheel fixed connection synchronous rotation, suction hole disc is fixed unmoved;Seed metering device adopts the mode of double-shaft drive, driving shaft, edge shaft is separately installed, does not affect each other, driving gear is installed on driving shaft, driving gear and the inner gear ring of tooth type seed wheel are meshed, centrifugal wheel is installed on edge shaft.The present application adopts the mode of centrifugal uniform seed - compound filling, and the disordered corn seed is sequentially moved, airflow suction hole acts on corn together, and filling effect is improved.

The invention discloses a high dioxin adsorption activated carbon and a preparation method thereof, and belongs to the technical field of activated carbon preparation. The method comprises the following steps: washing, drying and carbonizing rice husk to obtain material A; mixing ammonium metavanadate, ammonium metatungstate and deionized water, heating and stirring, adding nano titanium dioxide and lanthanum nitrate, stirring, roasting, cooling and grinding to obtain a catalyst; mixing the catalyst, 2-aminoterephthalic acid, aluminum chloride hexahydrate, dimethylformamide, deionized water and material A, transferring to a polytetrafluoroethylene lined autoclave for sealing, heat preservation at 120-130°C, impregnation and vacuum drying to obtain high dioxin adsorption activated carbon; by constructing an organic metal framework and doping with activated carbon, the adsorption rate of dioxin at the active sites inside the activated carbon is increased; and at the same time, a lanthanum-modified vanadium-tungsten / titanium dioxide catalyst is loaded to improve the adsorption and degradation effect of activated carbon on dioxin.

The application discloses a phosphorus acid group-containing sodium alginate-gelatin composite porous antibacterial hydrogel ball uranium adsorption material and a preparation method thereof, and relates to a uranium adsorption material and a preparation method thereof. In order to solve the problems of the existing amido oxime group materials for uranium adsorption, i.e., the reduction of adsorption sites due to the excessive combination of amido oxime groups and cross-linking agents, the reduction of adsorption capacity, the reduction of adsorption rate and the reduction of selectivity, the application firstly introduces gelatin and polyamide into sodium alginate to form a sodium alginate-polyamide-gelatin gel system. Then, the gel ball is grafted with phosphorus to strengthen the uranium adsorption effect. Finally, the gel ball is quaternized by iodomethane to enhance the antibacterial performance of the material. The prepared gel ball has the advantages of a relatively rich reticular porous structure, good mechanical performance, more adsorption sites, a high uranium adsorption capacity and certain antibacterial performance, and has a wide development prospect.

The invention relates to the technical field of activated carbon processing, in particular to a method for regenerating activated carbon from waste tire carbon black, which specifically comprises the following steps: 1) mixing bamboo powder, a composite nano material and waste tire carbon black, drying, carbonizing in a tubular furnace under the protection of nitrogen gas, introducing carbon dioxide gas, activating at constant temperature for 24-36 hours, and cooling to room temperature to obtain activated carbon; an activator is obtained; and (2) adding the activator into a sodium hydroxide aqueous solution, reacting for 12-15 hours, standing, carrying out hydrothermal crystallization for 24-30 hours, then carrying out ultrasonic dispersion, filtering, putting into a tubular furnace, and carbonizing for 3-7 hours under the protection of inert gas, so as to obtain the regenerated activated carbon. The regenerated activated carbon is high in specific surface area, micropore volume and total pore volume, the micropore proportion is reduced, the adsorption rate of polluting substances is high, the adsorbed polluting substances are not prone to desorption, the regenerated activated carbon can stably exist in the activated carbon, secondary pollution is avoided, and the regenerated activated carbon has extremely high practicability.

The application relates to the technical field of rice cleaning machines, and discloses a strong magnetic adsorption rice drum cleaning machine, which comprises a screening box for screening rice, a storage box is arranged above the screening box, a conveying cylinder is fixedly installed at the bottom of the storage box, a same discharging pipe is arranged between the storage box and the conveying cylinder, a same feeding pipe is arranged between the bottom of the conveying cylinder and the top of the screening box, and a conveying mechanism is arranged in the conveying cylinder; a motor box is fixedly installed at the right side of the conveying cylinder, a same transmission box is fixedly installed at the rear side of the motor box and the rear side of the conveying cylinder, and an adsorption mechanism is arranged between the transmission box and the feeding pipe. The application has the following advantages and effects: through the arrangement of the adsorption mechanism, the strong magnetic drum can adsorb the magnetic impurities mixed in the rice on the surface of the drum in the rotating process, the magnetic impurities in the rice can be removed, and the purity of the rice can be ensured.