89results about How to "Efficient regeneration" patented technology

The invention discloses a pre-separation-free method for directly repairing and regenerating a retired lithium ion battery, which comprises the following steps of: after completely discharging a waste lithium ion battery, disassembling and stripping a positive electrode material belt; mixing a lithium source, a reducing agent and a dipole aprotic solvent to prepare a lithium source solution; mixing the positive electrode material strip with a lithium source solution, carrying out heating reaction at 60-100 DEG C, and after the reaction is finished, carrying out centrifugation and screening to obtain a mixed solution containing a lithium source, a dipole aprotic solvent and a binder, a regenerated precursor and a current collector; and mixing the regenerated precursor with lithium carbonate, and calcining to obtain the regenerated lithium battery positive electrode material. The method provided by the invention can realize repair and regeneration of the positive electrode material while separating the positive electrode material, the binder and the current collector, overcomes the complex operation problem of separation of pretreatment and regeneration processes in a traditional hydrothermal regeneration process, and simplifies the process flow.

The invention provides a process for regenerating base oil from waste lubricating oil, and belongs to the technical field of base oil processing and production. The preparation process comprises the following steps: preparing biomass activated carbon based on peanut shells; preparing modified biomass activated carbon; pretreatment and extraction of waste lubricating oil; and carrying out molecular distillation and adsorption purification on the oil. Through the process steps of pretreatment, reduced pressure distillation, extraction, molecular distillation, adsorption purification and flash evaporation degassing, the base oil can be produced by using most of logarithms of the waste lubricating oil in society, so that the comprehensive utilization of the waste lubricating oil is realized, and the traditional clay refining process is eliminated in the production process; the problem of secondary pollution caused by waste clay generated in regeneration of the waste lubricating oil is thoroughly solved, and hazardous waste pollution is reduced.

The invention provides an innovative rapid screening process of a novel liquid-liquid phase change absorbent for CO2 capture. According to the method, system components are screened by dropwise adding a physical solvent and water, the composition and the load interval of the phase change solvent are determined, and the split-phase load critical value is accurately determined by adopting a back titration method. The screening process is simple and efficient in step, is suitable for various complex liquid-liquid phase change solvent systems, greatly improves the solvent screening efficiency, and is particularly suitable for efficient solvent screening for CO2 capture. The absorbent screened by the process shows excellent CO2 absorption performance at normal temperature and normal pressure, and has the advantages of easy control of phase change conditions, low regeneration energy consumption and the like. The absorbent is not only suitable for CO2 capture of industrial emission sources of coal-fired power plants, cement plants, steel plants and the like, but also suitable for CO2 emission reduction and resource utilization processes in various environmental protection scenes.

The invention relates to the technical field of preparation and application of a co-polymer biological material, and discloses a matrix-cell co-polymer biological material, which comprises a matrix-cell co-polymer, and the matrix-cell co-polymer comprises human decellularized alveolar bone matrix microparticles and human dental sac stem cells. According to the matrix-cell copolymer biological material as well as the preparation method and the application thereof, hDABMPs capable of providing a tissue-specific microenvironment and hDFSCs with development potential are utilized to prepare a developmental bionic matrix-cell copolymer biological material, and the developmental bionic matrix-cell copolymer biological regeneration material has good mechanical strength, good mechanical properties, good biocompatibility, good biocompatibility and good biocompatibility. The stem cell polymer carrying the tissue-specific microenvironment and the developmental potential provides key biological signals of a regeneration scaffold and the specific tissue microenvironment for tissue regeneration so as to support and enhance the regeneration capacity of the implanted stem cell polymer. The strategy highlights the synergistic effect of development guidance and microenvironment induction.

The invention discloses a pressure swing adsorption device of a hydrogen production system. The pressure swing adsorption device comprises a first adsorption tower, a second adsorption tower, a waste gas emission unit, a hydrogen input pipe, a hydrogen output pipe, a program control valve group and a PLC (Programmable Logic Controller) control system, according to the device, a plurality of adsorption layers are respectively arranged in the first adsorption tower and the second adsorption tower, and the pressure change of each adsorption tower in different adsorption and regeneration stages is controlled, so that the intelligent control of the pressure swing adsorption hydrogen production process is realized, and the first adsorption tower and the second adsorption tower alternately perform adsorption and regeneration; compared with the traditional two independent steps of deoxidation and drying, the method has the advantages that the influence on the purification effect of hydrogen due to flow connection is avoided, the hydrogen purification flow is efficiently integrated, and the purification effect and efficiency of hydrogen are improved; by controlling the opening and closing time and sequence of the program control valve group, when one adsorption tower performs adsorption operation, the other adsorption tower performs regeneration operation, so that the overall efficiency and yield of the system are improved.

The present invention discloses a novel membraneless electrodeionization device structure. It comprises a composite top cover, a composite bottom cover, a cylindrical shell and an ion exchange resin layer. The upper end of the cylindrical shell is provided with a composite top cover, and the lower end is provided with a composite bottom cover. The composite top cover and the composite bottom cover have the same structure and are symmetrically arranged at the middle and two ends of the cylindrical shell. The cylindrical shell is filled with an ion exchange resin layer. The composite top cover and the composite bottom cover are pressed toward the middle of the cylindrical shell at both ends of the cylindrical shell, thereby pressing the ion exchange resin layer. The composite top cover / bottom cover both comprise an upper interface, an upper cable sealing joint, a top cover plate, an upper electrode connecting rod, an upper porous pressing plate, an upper resin filter plate and an upper electrode net. In the present invention, the resin layer can be evenly pressed under the action of the composite top cover and the composite bottom cover, and the upper and lower resin particles are always kept in close contact, which effectively reduces the unfavorable water flow distribution condition of the resin layer, effectively ensures good regeneration of the resin, simplifies the structure, and is easy to install and maintain.

The invention provides a desulfurization ash regeneration device and method, and relates to the technical field of desulfurization ash regeneration. The device comprises a shell, the shell is provided with a reaction cavity, a feeding port and a discharging port, and a turnover sand core is arranged between the reaction cavity and the discharging port and used for controlling the desulfurization ash discharging process; a gas inlet is formed between the discharge hole and the sand core and is used for introducing reaction gas which reacts with the desulfurized fly ash into the reaction cavity; an ignition device; the circular reaction unit is used for realizing circular reaction of the desulfurized fly ash in the reaction cavity to reach set conditions; and an air outlet. When the device is used for regenerating the desulfurized fly ash, reaction gas can be used as a heat source and a reducing atmosphere at the same time, the desulfurized fly ash is efficiently and quickly regenerated and decomposed into calcium oxide in the reaction cavity, and the energy consumption is reduced; the regenerated desulfurized fly ash can be used in a sintering or pellet production process, so that the treatment cost of waste ash and the use amount of new lime are reduced, and the environmental protection cost and carbon emission of enterprises are effectively reduced.

The invention relates to the technical field of gas separation, in particular to a pig feed fermentation preparation method with a deodorization effect, through the arrangement of an activated carbon cylinder of a cylindrical structure and granular filler in the activated carbon cylinder, in cooperation with synchronous rotation of a rotating frame, the contact area and the contact frequency of gas and activated carbon are remarkably increased, the deodorization efficiency is improved, and the deodorization effect is improved. Through cooperative use of the bearing frame and the rotating frame, after the adsorption capacity of activated carbon is reduced, the activated carbon cylinders can be automatically moved to the top from the rotating frame and naturally fall onto the bearing frame through gravity, replacement of the activated carbon cylinders can be achieved without manual intervention, and in this way, the tedious manual disassembly process in the prior art is avoided; and the maintenance efficiency of the equipment is obviously improved, and the labor burden of operators is reduced.

The application discloses a temperature-controllable desalination amphoteric group MOF material and a preparation method and application thereof, and belongs to the field of nanometer functional material water treatment. The application takes zirconium-based MOF (MOF-808 / UiO-66) with formic acid molecules as a substrate, introduces an amphoteric compound containing carboxyl and amino groups through a formic acid ligand exchange method in one step, and obtains the amphoteric group MOF material, wherein the molar ratio of the carboxyl and the amino group is (1-2):1. At normal temperature, the carboxyl and the amino group of the material synchronously adsorb cations and anions in water through electrostatic interaction, so that desalination of a salt-containing water body is realized; after adsorption saturation, only hot water immersion at 50-80 DEG C is needed, so that ion desorption and material green regeneration are realized through temperature-induced proton transfer. The material has high desalination efficiency, the removal rate of Na+ is up to 99%, the removal rate of Cl- is up to 95%, the regeneration rate is up to 99%, the preparation process is simple, the conditions are mild, there is no secondary pollution, and the application is suitable for desalination treatment of a low-concentration salt-containing water body. + ‑ The removal rate of Na+ is up to 99%, the removal rate of Cl- is up to 95%, the regeneration rate is up to 99%, the preparation process is simple, the conditions are mild, there is no secondary pollution, and the application is suitable for desalination treatment of a low-concentration salt-containing water body.​

The present invention discloses a dual-condensation variable frequency adaptive dehumidifier, which relates to the technical field of dehumidifiers. The present invention includes a machine body, and also includes: a variable frequency control unit, which is used to perform variable frequency control on the operation of the machine body, and the variable frequency control unit includes a humidity sensor and a controller fixedly installed on the machine body; a dehumidification unit, which is used to perform dehumidification treatment, and the dehumidification unit includes a sealing plate fixedly installed in the machine body, and a fixed ring is installed in the sealing plate for sealing and rotation, and a dehumidification wheel is fixedly installed on the inner wall of the fixed ring. The advantage is that the present invention can automatically switch the regeneration mode by using the speed change of the dehumidification wheel, and at the same time adjust the size of the dehumidification area and the regeneration area, so that the dehumidification wheel has a faster regeneration speed and a larger dehumidification area when rotating at a high speed, thereby ensuring that it can perform long-term and effective rapid dehumidification treatment in a high humidity environment.

The present invention provides an aminohydantoin Schiff base 4-pyridine quaternary ammonium salt precursor compound and its preparation method and application, which belongs to the synthesis and application technical field of quaternary ammonium salt Schiff base halamine high-efficiency composite antibacterial agent. Aminohydantoin hydrochloride, 4-pyridine formaldehyde and propylene bromide are used as raw materials to prepare an aminohydantoin Schiff base 4-pyridine quaternary ammonium salt precursor compound. And, the application process of the precursor compound is to pretreat the fiber or fabric with 3-mercaptopropyltriethoxysilane, then arrange it with the precursor compound, and finally halogenate it to obtain an antibacterial material. The method of the present invention has mild reaction conditions, simple process and good antibacterial effect. The 1-ADPAH-R antibacterial agent synthesized by the method and its halamine precursor combine the advantages of multiple antibacterial structures, so that the antibacterial agent has water solubility, is easy to operate when preparing the antibacterial material, and can prepare an antibacterial material with excellent antibacterial properties.

The invention discloses a method for efficiently leaching platinum group metal in a waste automobile catalyst, and belongs to the field of rare and precious metal smelting. The method comprises the following steps: a leaching process: mixing the hulled waste automobile catalyst with a leaching agent, carrying out acid leaching in an acidic solution for a period of time, adding a complexing agent to complex platinum group metals, leaching for a period of time, and filtering to obtain a pregnant solution rich in the platinum group metals and carrier residues; wherein the leaching agent is a cerium-containing compound; a resin adsorption process: adsorbing the pregnant solution through an adsorption column filled with adsorption resin to obtain an adsorbed solution; and an elution process: washing the adsorbed adsorption resin with water and eluting the platinum group metal step by step, and regenerating the eluted adsorption resin for cyclic utilization. The method aims at avoiding generation of toxic and harmful substances (chlorine and NOx) and use of highly toxic cyanide in an existing wet process, environmental pollution and potential safety hazards are fundamentally eliminated, and meanwhile the leaching efficiency of the platinum group metal is remarkably improved.

This invention provides an adsorption device for hydrogen peroxide oxidation tail gas, comprising an adsorption tank, an inner filter cartridge, an outer filter cartridge, an adsorption chamber, several air inlets, an adsorption resin layer, an inlet pipe, and an outlet pipe; both the inner and outer filter cartridges are located inside the adsorption tank. This invention optimizes the traditional "flat-lay" structure into a "sleeve-type" coaxial double-layer filter cartridge structure, improving the contact efficiency between the tail gas and the resin, preventing the resin from being blown away or worn, extending its service life, and simplifying the filling process. The elimination of quartz sand filler also simplifies the filling process. The system adopts a "five-in-one-out" operating mode, enabling multiple adsorption tanks to operate in rotation. Combined with steam regeneration, nitrogen purging, and spray cooling processes, it achieves efficient resin regeneration and reuse, significantly reducing operating energy consumption and material replacement frequency. The adsorption system operates stably, has a compact structure, and can continuously and efficiently remove aromatic organic pollutants from the oxidation tail gas, balancing operational economy and environmental friendliness.

The invention discloses a double-condensation variable-frequency self-adaptive dehumidifier, and relates to the technical field of dehumidifiers, the double-condensation variable-frequency self-adaptive dehumidifier comprises a machine body and further comprises a variable-frequency control part, the variable-frequency control part is used for carrying out variable-frequency control on the operation condition of the machine body, and the variable-frequency control part comprises a humidity sensor and a controller which are fixedly installed on the machine body; and the dehumidification part is used for carrying out dehumidification treatment, the dehumidification part comprises a sealing plate fixedly installed in the machine body, a fixing ring is rotationally installed in the sealing plate in a sealed mode, and a dehumidification rotating wheel is fixedly installed on the inner wall of the fixing ring. The dehumidification rotating wheel has the beneficial effects that regeneration modes can be automatically switched through the rotating speed change of the dehumidification rotating wheel, and meanwhile the dehumidification area and the regeneration area are adjusted, so that the dehumidification rotating wheel has the higher regeneration speed and the larger dehumidification area during high-speed rotation; and therefore, long-time effective rapid dehumidification treatment can be carried out in a high-humidity environment.

The invention discloses a direct high-temperature regeneration method of a waste lithium iron phosphate positive plate in a water vapor atmosphere. The method comprises the following steps: directly placing the positive plate obtained by discharging and disassembling the waste lithium iron phosphate battery into a reaction container, directly regenerating at 600-650 DEG C by taking superheated steam as a gasification medium, and removing aluminum foil after the regeneration process is completed, thereby obtaining the regenerated lithium iron phosphate positive plate. According to the method provided by the invention, the structure of lithium iron phosphate can be completely repaired at a relatively low temperature, and aluminum foil fusion is avoided. Compared with a traditional recycling process, the method has the advantages that complex pretreatment steps such as smashing, screening and stripping are omitted, material loss is reduced, the whole process is mild and environmentally friendly, and the method is short in process and easy and convenient to operate.

The catalyst regeneration reactor comprises a crushing unit, a feeding conveying belt, a drying unit and a reactor, the crushing unit comprises a crushing box and two crushing rollers, the drying unit comprises a drying box, the bottom of the drying box is communicated with the reactor through a discharging port, and the feeding conveying belt is used for conveying a catalyst discharged from a feeding port to a feeding port; the drying box is provided with a mixing assembly, the mixing assembly is used for stirring a catalyst in the drying box, the drying box is communicated with a drying pipe, and the drying pipe is used for blowing high-temperature dry air to dry the catalyst in the drying box; according to the catalyst regeneration reactor disclosed by the utility model, the crushing unit is adopted to crush a to-be-regenerated catalyst and ensure that the catalyst can be quickly and effectively regenerated, and the drying unit is matched to dry the to-be-regenerated catalyst, remove moisture adsorbed in the catalyst and preheat the catalyst, so that the regeneration time is greatly shortened, and the regeneration efficiency is improved. The regeneration efficiency and the regeneration quality are improved.

The invention relates to an Ag (I)-based silicon dioxide adsorbent as well as a preparation method, a regeneration method and application thereof, and relates to the field of adsorbents. The preparation method of the Ag (I)-based silicon dioxide adsorbent comprises the following steps: adding a silicon dioxide carrier into a silver nitrate solution, stirring, filtering, washing, and carrying out vacuum drying to obtain the Ag (I)-based silicon dioxide adsorbent, wherein the mass volume ratio of the silicon dioxide carrier to the silver nitrate solution is 1g: (15-40) mL; the concentration of the silver nitrate solution is 0.05-0.5 mol / L. Adsorption active sites of the Ag (I)-based silicon dioxide adsorbent prepared through the convenient and efficient method are greatly increased, and the Ag (I)-based silicon dioxide adsorbent has good adsorption performance. Besides, the Ag (I)-based silicon dioxide adsorbent saturated in adsorption is placed in a proper microwave environment for regeneration, energy consumption is low, effective regeneration of the adsorbent can be conveniently and efficiently achieved, resource waste of the adsorbent is avoided, and secondary pollution is reduced.

The present application relates to adsorption separation of bisphenol A and 2,4-bisphenol A adsorbent and its adsorption separation process; the adsorbent is a high-silicon Y molecular sieve containing rare earth, the molar ratio of the contained silicon oxide and aluminum oxide is 2.5:1-15:1, the contained rare earth metal is one or a combination of multiple of lanthanum, cerium, scandium and yttrium, the content of rare earth metal is 10:1-1000:1 in terms of the molar ratio of silicon and rare earth metal, and the rare earth metal exists in the form of metal ions. The adsorption separation process is to contact the mixture containing bisphenol A, 2,4-bisphenol A, triphenol and chroman in the crystallization mother liquor with the adsorbent in the adsorption separation reactor to carry out adsorption separation, and the obtained bisphenol A and 2,4-bisphenol A after adsorption separation enter the isomerization reaction unit; the obtained triphenol and chroman after adsorption separation enter the cracking reaction unit. Phenol is used as the eluent, has strong affinity with the adsorbent, and the elution efficiency reaches more than 95%.

The invention provides an alumina-based catalyst inactivation and regeneration method for catalytic decomposition of carbon tetrafluoride, and relates to the technical field of catalyst inactivation and regeneration, and the method comprises the following steps: filling an alumina-based catalyst into a quartz tube, fixing the quartz tube in a reaction bin, pre-introducing carbon tetrafluoride and air into the reaction bin, heating the reaction bin after a gas path is stable, and carrying out deactivation and regeneration on the alumina-based catalyst; injecting water into the vaporizing chamber through an injection pump, heating the vaporizing chamber, and controlling the humidity of the reaction bin until the catalyst is inactivated; the method comprises the following steps: filling a quartz tube with an inactivated catalyst, fixing the quartz tube in a reaction bin, pre-introducing air into the reaction bin, heating the reaction bin after an air path is stable, injecting water into a vaporizing chamber through an injection pump, heating the vaporizing chamber, controlling the humidity of the reaction bin, and regenerating the inactivated aluminum oxide catalyst through a hydrothermal aging reaction. According to the invention, the fluorine poisoning of the alumina-based catalyst during catalytic decomposition of carbon tetrafluoride can be efficiently removed.

The present application belongs to the field of biotechnology and tissue culture, and particularly relates to a method for inducing bulbil-like body of Allium fistulosum and a method for genetic transformation mediated by bulbil-like body. The method comprises the following steps: firstly, culturing sterile seedlings of Allium fistulosum; then, inducing bulbil-like body of the Allium fistulosum explant to generate RTB by using root-like body induction medium RsIM under dark conditions; subsequently, inducing the RTB of the Allium fistulosum to generate RTB by using bulbil-like body RTB induction medium RTBsIM under light conditions; then, inducing the RTB embryo to germinate to form regenerated seedlings by using RTB embryo germination medium RTBsGM; finally, inducing the regenerated seedlings to root by using rooting medium RM, and then developing into complete seedlings. The present application can efficiently induce the Allium fistulosum to generate RTB, and the established regeneration system of the Allium fistulosum RTB has the advantages of high efficiency and stability.

The invention relates to the technical field of transformers, and discloses a transformer for a renewable energy power generation cluster, comprising a transformer body, a regeneration chamber fixedly connected to one side of the transformer body, an oil inlet pipe fixedly connected to the bottom of one side of the regeneration chamber, the other end of the oil inlet pipe fixedly connected to the bottom of the transformer body, an oil outlet pipe fixedly connected to the side of the regeneration chamber surface away from the oil inlet pipe, the other end of the oil outlet pipe fixedly connected to the surface of the transformer body, and an oil inlet chamber, a heating chamber, a regeneration chamber, a filter chamber and a cooling chamber are sequentially provided in the regeneration chamber along the direction from the oil inlet pipe to the oil outlet pipe; the transformer for a renewable energy power generation cluster realizes efficient and continuous regeneration of transformer oil by installing the regeneration chamber on the transformer body and utilizing various components inside the regeneration chamber, thereby significantly improving the cleanliness and insulation performance of the transformer oil and extending the service life of the transformer oil.

The utility model relates to a molecular sieve adsorption system which comprises at least two deacidification tanks, a spraying device and a purging pipeline, molecular sieves are arranged in the at least two deacidification tanks, and the at least two deacidification tanks are configured to be used for removing oxygen-containing compounds in raw materials; the spraying devices are arranged in the inner cavities of the at least two deacidification tanks and located above the molecular sieves, and liquid sprayed out of the spraying devices is configured to flow downwards through the molecular sieves; the purging pipeline is communicated with the deacidification tank and is configured to inject purging gas for drying the molecular sieve into the deacidification tank through the purging pipeline. The molecular sieve adsorption system provided by the utility model is provided with at least two deacidification tanks, so that the fault resistance of the whole system is greatly improved, the operation process is safer and more stable, and the molecular sieve can be efficiently regenerated and the adsorption efficiency is improved due to the arrangement of the spraying device and the purging device.

The present invention relates to the technical field of polymer materials, and specifically discloses a water treatment material for electrically enhanced adsorption filtration and a preparation method and application thereof. The present invention comprises the following steps: (1) ultrasonically cleaning the melamine sponge, drying it, placing it in a tube furnace, introducing a protective gas, and setting the heating rate to 4 to 6°C / min ‑1 , after preheating, continue to heat up to 900-1100°C, keep warm, cool to room temperature, and obtain ultra-light flexible carbon sponge; (2) dissolve tris(hydroxymethyl)aminomethane in a solvent to obtain a solution, adjust the pH to 8.4-8.6, then add dopamine and polyethyleneimine, mix, add ultra-light flexible carbon sponge, stir and react for 10-14h, and obtain a water treatment material for electrically enhanced adsorption and filtration. The present invention uses N-rich melamine sponge as a precursor, which has a larger specific surface area; the sponge has good conductivity after high-temperature carbonization of inert gas; dopamine and polyethyleneimine are modified to improve their adsorption potential.

The present application relates to a kind of metal hydride hydrolysis hydrogen and hydrolysis product in-situ regeneration device and method, belong to hydrogen energy storage and release technical field.The device includes dynamic hydrogen nanobubble generation unit, reaction chamber, two-way flowable filter device, liquid storage tank connected in sequence;The top of the reaction chamber is provided with hydrogen inlet and outlet, solid inlet and outlet and pressure relief port, and the bottom is provided with liquid inlet and outlet;The dynamic hydrogen nanobubble generation unit is connected with the hydrogen inlet and outlet of reaction chamber by gas path;The dynamic hydrogen nanobubble generation unit includes gas compression circulation system and parameter monitoring feedback unit.The present application is integrated by hydrolysis hydrogen-hydride regeneration process unit, and utilizes dynamic hydrogen nanobubble method, for the first time in aqueous system realizes the efficient, low-temperature in-situ regeneration of metal hydride hydrolysis product (metal hydroxide), forms complete reversible hydrogen storage and release cycle.The method has the advantages of low energy consumption, good cycle stability, high device integration.

The invention discloses a preparation method of a bioactive scaffold for promoting nerve vascularization bone regeneration. The preparation method comprises the following steps: mixing a synthetic high polymer material and / or a natural high polymer material with an osteogenesis promoting nano material to obtain printing ink; printing ink is used in a 3D printing mode, and the basic support is obtained. The preparation method comprises the following steps: preparing a piezoelectric high polymer material into a micro-nano fiber membrane through an electrostatic spinning technology, cutting the micro-nano fiber membrane into small blocks, soaking the small blocks in an ethanol solution, and dispersing and filtering the small blocks to obtain a micro-nano fiber / ethanol dispersion liquid; and immersing the basic scaffold in the micro-nano fiber / ethanol dispersion liquid for micro-nano fiber self-assembly, then removing ethanol, placing and drying to obtain the bioactive scaffold. The scaffold has a micro-nano fiber structure of a bionic natural extracellular matrix, and cell behaviors of adhesion, proliferation, differentiation and the like of cells are promoted. Cells in contact with the stent can exert a self-stimulation bioelectric effect driven by cell adhesion, so that efficient nerve vascularization bone regeneration can be realized, and the quality of bone defect repair is improved.

The invention relates to the technical field of biology, and particularly discloses a method for inversely differentiating human scalp fibroblasts into dermal papilla-like cells and application of the method. Ribociclib hydrochloride and vitamin D2 are added for combined induction, so that the human scalp fibroblasts are directly converted into the dermal papilla-like cells; the dermal papilla-like cells have high biomolecular expression similarity with primary human dermal papilla cells, and the problems that proliferation of the dermal papilla-like cells is limited and the hair induction potential of the dermal papilla-like cells is gradually reduced within a long time are solved.

The invention discloses an ex-situ regeneration method of a hydrofining catalyst, and relates to the technical field of hydrogenation catalyst application, the method comprises the steps of pretreatment, limited scorching treatment, activation treatment and the like, the limited scorching treatment and the activation treatment are integrated, and compared with a distributed operation mode, the limited scorching treatment and the activation treatment are integrated into a whole; the method has the advantages of simple operation, lower energy consumption cost and solution cost, shortened regeneration time, realization of efficient regeneration and activity recovery, low cost, short period and good activity recovery.

The present application relates to the technical field of breeding and seedling raising of forest trees, and discloses a method for realizing in vitro regeneration of Rosa roxburghii by hypocotyl culture, which comprises the following steps: taking seedling germinated from cold storage of Rosa roxburghii seeds as material, removing cotyledon and root, cutting hypocotyl segments with a length of 0.6-1.5 cm as explants, and sterilizing the explants; inoculating the sterilized explants into primary induction medium, and carrying out dark culture until callus is generated and primary adventitious buds are induced; inoculating the cultured callus into differentiation medium, and carrying out dark culture until secondary adventitious buds are regenerated; inoculating the obtained secondary adventitious buds with a height of 1.5-2.5 cm into rooting medium until rooted plants are obtained; and hardening the obtained rooted plants, and then transplanting them into mixed substrate for culture.

The invention belongs to the technical field of environmental engineering, and particularly relates to a contaminated soil micro-foam leaching device and method based on the ATP forming principle, a supporting table is fixedly provided with a large crossed roller bearing, the large crossed roller bearing is provided with three high-frequency vibration tables, the three high-frequency vibration tables are each provided with a reaction tank, and the reaction tanks are arranged on the supporting table; the three reaction tanks are sequentially arranged in a clockwise mode to be a filling station, a leaching station and a discharging station, a discharging component is arranged on the filling station, a micro-foam generating module is arranged on one side of the leaching station and arranged on a supporting table, an anti-leakage collecting barrel is arranged below the discharging station, and a discharging component is arranged on the discharging station. The technical scheme is innovated from the aspect of mass transfer principle, continuous physical conveying of soil can be achieved, targeted transfer of pollutants from the soil to a leaching medium can be actively driven through an ATP bionic mechanism, and three core challenges of mass transfer efficiency, operation cost and secondary pollution are systematically solved.

The invention discloses a method for regenerating positive electrode materials of waste lithium-ion batteries, which comprises the following steps: discharging and disassembling waste lithium-ion batteries to obtain positive electrode sheets and negative electrode materials of waste lithium-ion batteries, pre-treating the positive electrode sheets of waste lithium-ion batteries to obtain positive electrode material powder of waste lithium-ion batteries; mixing the negative electrode materials of waste lithium-ion batteries with NaCl solution and a promoter to obtain a first solution and performing a hydrothermal reaction, evaporating and crystallizing to obtain LiCl powder; mixing the LiCl powder with an organic solvent and an activator to perform a saponification reaction to obtain a second solution; mixing the second solution with the positive electrode material powder of waste lithium-ion batteries to obtain a third solution; drying the third solution to obtain positive electrode material powder; and quenching the positive electrode material powder to obtain a regenerated positive electrode material of lithium-ion batteries. The method of the invention can efficiently regenerate the positive electrode materials of waste lithium-ion batteries and restore their excellent electrochemical properties.