136 results about "Oxidation response" patented technology

The invention relates to the technical field of wastewater treatment, in particular to a catalytic reduction-oxidation reaction system and a wastewater treatment method, and the catalytic reduction-oxidation reaction system is used for treating wastewater. Comprising a water inlet unit, a pH stabilizing unit, a catalytic reduction reaction unit, a Fenton oxidation reaction unit, an aeration stripping unit, a neutralization unit, a coagulating sedimentation unit and an intelligent control system which are connected in sequence, the catalytic reduction reaction unit comprises a catalytic reduction reactor, a filter plate and a reaction layer are arranged in the catalytic reduction reactor, a supporting layer is laid on the filter plate, and the reaction layer is arranged on the supporting layer. The reaction layer is arranged on the filter plate through the supporting layer; the Fenton oxidation reaction unit comprises a Fenton oxidation reactor, the Fenton oxidation reactor comprises a reactor body, and a first rotary mixing aeration disc is arranged at the bottom in the Fenton oxidation reactor. By implementing the application, high-efficiency, stable, low-consumption and intelligent operation of wastewater treatment can be realized.

The invention discloses a seawater chemical oxygen demand determination method based on bias voltage photoelectric oxidation, and relates to the technical field of water quality monitoring. The method comprises the following steps: collecting seawater and performing pretreatment to obtain a seawater sample; adding supporting electrolyte into the seawater sample to obtain an electrolytic water sample; the method comprises the following steps: injecting an electrolysis water sample into a photoelectrochemical reaction tank, applying bias voltage to a working electrode by taking Ag / AgCl as a reference electrode, and turning on a light source with a specific wavelength for irradiation; carrying out an oxidation reaction in the photoelectrochemical reaction tank, and after the oxidation reaction of the organic matter is complete, obtaining a steady-state photocurrent with a stable current signal; according to a preset steady-state light current-COD concentration curve, a COD measured value is obtained, the COD standard concentration value is corrected according to the water temperature and the salinity, and a COD corrected value is obtained. An adjustable tiny external bias voltage is introduced to cooperate with light source irradiation, so that rapid, accurate and high-anti-interference measurement of COD in seawater is realized.

This invention relates to the field of industrial wastewater treatment technology, and discloses an electrocatalytic oxidation device and its operating method for treating saline industrial organic wastewater. Wastewater enters the reaction chamber through the bottom inlet, is forced through the anode channels, and undergoes an electrochemical oxidation reaction on the anode surface to convert chloride ions into hypochlorous acid. A vacuum ultraviolet light source performs in-situ photolysis of water molecules and hypochlorous acid, exciting various active species, including strongly reducing hydrated electrons, strongly oxidizing hydroxyl radicals, and chloride radicals. This device, through the construction of a reduction-oxidation system, can efficiently degrade various pollutants with both electron-rich and electron-deficient characteristics. This invention utilizes the synergistic coupling of electrochemical generation and photochemical conversion to convert high-concentration chloride ions into active precursors, effectively overcoming the bottlenecks of low degradation efficiency and poor selectivity in traditional technologies for high-salt and complex water quality, and significantly improving the system's mineralization efficiency and energy utilization rate.

The invention discloses a pyrolysis gas-assisted thermochemical cycle hydrogen production test system and an operation method. The test system comprises a steam system, a gas path system, a reaction system and a separation detection system. The reaction system adopts a first reaction system and a second reaction system which are arranged in parallel and can alternately carry out reduction and oxidation reactions. And the gas path system can selectively introduce pyrolysis gas or nitrogen into the reaction system through valve switching. According to the operation method, by optimizing water vapor oxidation conditions, an air oxidation stage in a traditional process is omitted, and energy consumption is reduced; and nitrogen purging is adopted during switching of the reaction stages, so that the explosion risk is thoroughly eliminated, and the safety is guaranteed. According to the invention, continuous, efficient and safe circulating hydrogen production is realized, and a reliable scheme is provided for industrial application.

The utility model relates to the technical field of micro-arc oxidation reaction equipment, in particular to a micro-arc oxidation reaction device which comprises a support, a reaction cabin and a sealing cover, the reaction cabin is installed on the upper surface of the support, the sealing cover is installed on the upper surface of the reaction cabin, and a stirring mechanism is arranged on the upper surface of the sealing cover. A stirring part of the stirring mechanism is located in the reaction cabin, a jacking mechanism is arranged on the upper surface of the support, a moving part of the jacking mechanism is fixedly connected with the upper surface of the sealing cover, a distribution box is installed on the side surface of the support, and an assisting assembly is arranged on the upper surface of the support. According to the reaction device disclosed by the utility model, by arranging the assisting assembly and the locking assembly, when a user uses the equipment, the stirring structure of the equipment can leave right above the reaction device, so that the interference of the stirring structure on the taking operation when the user takes a workpiece is reduced, and the practicability of the reaction device is further improved.

The invention relates to the technical field of industrial wastewater treatment, and discloses an advanced oxidation-biological coupling treatment method and system.The method comprises the steps that after the pH value of wastewater is adjusted to be 3-5, Fenton oxidation and photocatalytic oxidation treatment are synchronously conducted in an oxidation reaction tower, the concentration of ferrous sulfate is controlled to be 8-12 mmol / L, the adding amount of hydrogen peroxide is controlled to be 40-60 mg / L, and the pH value of the wastewater is adjusted to be 3-5; irradiating with a 0.4-0.6 W ultraviolet light source, and reacting for 8-16 hours; the pressure is monitored in real time in the process, and safety pressure relief protection is set; after oxidation treatment, the pH value of the wastewater is adjusted to 6.5-8.5, biodegradation is conducted through a fluidized bed or a membrane bioreactor, the air flow of the fluidized bed is controlled to be 1-2 m < 3 > / h, and the membrane bioreactor is subjected to gas-water combined backwashing with the period of 4-12 hours; and finally, the effluent is recycled or discharged after being monitored to reach the standard. The system comprises an adjusting unit, an advanced oxidation unit, a biological treatment unit and an intelligent control unit which are sequentially connected. According to the invention, efficient decomposition and deep purification of refractory organics are realized, the treatment efficiency is high, the operation is stable, and the safety is good.

The application relates to the technical field of nanofiltration membrane processing, in particular to a modification and recycling method of waste nanofiltration membranes, which comprises the following steps: 1) cyclic normal-temperature cleaning of the nanofiltration membranes by using alkaline agents or acid agents in combination with ultrasonic waves, and the cleaned nanofiltration membranes are washed clean by using deionized water or distilled water; 2) oxidation modification treatment in an oxidation reaction device by using an ozone oxidation method; 3) oxidation modification by using an oxidation agent in a modification device; 4) oxidation modification by using an acid medium oxidizing agent in the modification device; 5) hydroxylation modification by using a hydroxylation agent in the modification device; 6) modification and stabilization treatment by using a buffer stabilizing agent, and washing clean, so as to complete the modification and recycling treatment of the waste nanofiltration membranes. According to the modification and recycling method, the waste nanofiltration membranes can be utilized, the modification process is relatively simple, the membrane surface is not damaged after modification, the nanofiltration membrane flux is significantly improved after modification, and the interception rate meets the design and use requirements.

The present application relates to a kind of wastewater microplastics disposal method based on subcritical wet oxidation disposal method.The method comprises: wastewater is coagulated, and microplastic coagulation floc is obtained;Specifically including wastewater: coagulant: inorganic coagulant: organic flocculant is compounded according to the mass ratio of 1,000,000: (10-200) : (1-10) : (5-50) wastewater is coagulated;It is placed in reaction kettle and participates in subcritical wet oxidation reaction;Wherein, water is introduced into reaction kettle, oxidizing agent is introduced into reaction kettle, temperature is 200 DEG C to 260 DEG C, pressure is 1.6 MPa to 6.7 MPa, time is 30 min to 60 min, reaction product includes organic acid, by the above method, microplastic in wastewater is decomposed to form small molecule organic acid, eliminate the damage that microplastic can be to environment or organism.

The invention relates to a post-treatment method for a mercury-based II-VI group nanocrystal with a protective layer formed by chemical oxidation, and solves the problems of poor stability and photoelectric property degradation of the mercury-based II-VI group nanocrystal caused by surface oxidation, ligand desorption and environmental sensitivity. An oxide protection layer with the thickness of 1-3 nm is formed on the surface of the nanocrystal, the long-term stability and the photoelectric property of the nanocrystal are improved, and the method comprises the specific steps of centrifugal purification of the nanocrystal, preparation of an oxidizing agent solution, controllable oxidation reaction, functional ligand surface modification and purification treatment. The oxidation layer is ensured to be compact and stable by accurately adjusting the concentration of the oxidant, the reaction temperature and the reaction time. According to the method, oxygen and moisture permeation is effectively blocked, surface defects are reduced, the quantum yield and the photoelectric property are improved, and the method is widely applied to the fields of post-treatment of mercury-based II-VI group nanocrystals and photoelectric devices.

The application discloses a preparation method of 3-ketotetrahydrofuran and belongs to the technical field of biological catalysis and pharmaceutical engineering. The application aims to provide an enzymatic oxidation reaction method for obtaining 3-ketotetrahydrofuran with high conversion rate and high yield. In the application, alcohol dehydrogenase mutants are used to catalyze the oxidation of chiral 3-hydroxytetrahydrofuran in a whole cell and a pure enzyme, so that the biosynthesis of 3-ketotetrahydrofuran is realized, the highest yield is 29.73%, and the selectivity is 95.3%. The method has the advantages of mild conditions, environmental friendliness and low cost, and has high application potential.

The invention discloses a high-temperature corrosion-resistant continuous wet oxidation treatment system and method. The system comprises a wastewater pretreatment module, a pressurization preheating system, a wet oxidation reactor module, a depressurization cooling system and a gas-liquid separation and tail gas treatment module which are connected in sequence. The treatment method comprises a pretreatment stage, a pressurizing and preheating coupling stage, a gradient oxidation reaction stage, a stepped depressurization waste heat recovery stage and a gas-liquid separation and tail gas purification stage. According to the continuous flow tubular reactor structure disclosed by the invention, deep mineralization of organic pollutants is realized by combining the strong oxidizing property of wet oxygen at high temperature and high pressure, the COD (Chemical Oxygen Demand) removal rate can reach 90% or above, and the biodegradability of effluent is greatly improved; heat energy in high-temperature outlet water is fully recycled through the pipe sleeve type heat exchanger to preheat fed materials, and the requirement for an external heat source is reduced; a temperature fine-adjustment heater is arranged in an auxiliary mode, and total energy consumption is further saved; the pressure reduction coil pipe controls stable release of liquid outlet pressure, and the problems of equipment impact and corrosion caused by vapor-liquid flash evaporation are effectively prevented.

The invention discloses anaerobic ammonia oxidation reaction equipment and method, and relates to the technical field of sewage treatment.The reaction equipment comprises a reaction tank, a separation device, a liquid guide device, a precipitation backflow device and a control system.During anaerobic ammonia oxidation reaction, the control system is manually operated, the precipitation backflow device is driven to operate, and the precipitation backflow device is driven to operate; the mixed sludge is guided into the reaction tank, meanwhile, the liquid guide device is driven to guide sewage into the reaction tank, the mixed sludge and the sewage are subjected to an oxidation reaction in the reaction tank, the separation element separates gas-solid mixed liquid rising in the reaction tank, and after the sludge naturally settles, the liquid guide device is driven to operate; after clear liquid on the upper layer of the reaction tank is discharged and gas generated by reaction is discharged, the residual mixed sludge in the reaction tank is discharged by driving the precipitation reflux device, the retention time of the granular sludge in the reaction tank is prolonged through the separation device, and the effect of improving the reaction efficiency is achieved.

The utility model discloses a novel industrial sewage PDS strong oxidation treatment device, and relates to the technical field of sewage treatment equipment, in particular to a novel industrial sewage PDS strong oxidation treatment device which comprises a filter box, an oxidation box and a settling box which are communicated with one another in sequence, the sewage in the oxidation tank is stirred through the stirring part; a persulfate solution is contained in a persulfate solution box, and the persulfate solution is conveyed into an oxidation box through a flow dividing pipe, so that the persulfate solution is in contact with sewage; the stirring part drives the flow dividing pipe to lift and move in the oxidation box while stirring the sewage, namely, the flow dividing pipe lifts and moves in the sewage, so that a persulfate solution is more comprehensively contacted and mixed with the sewage, and the mixing effect of the persulfate solution and the sewage is greatly improved; the persulfate solution is subjected to an oxidation-reduction reaction, a catalytic oxidation reaction and the like in the sewage, so that the aim of purifying the sewage is fulfilled.

To extend the lifespan of electrolytic devices. [Solution] The electrolytic cell comprises a cathode having a reduction catalyst that promotes a reduction reaction to reduce a target substance, which is carbon dioxide or nitrogen, and produce a reduction product; an anode having an oxidation catalyst that promotes an oxidation reaction to oxidize water and produce oxygen; a diaphragm provided between the cathode and the anode; a cathode channel facing the cathode through which the gas of the target substance to be reduced flows; an anode channel facing the anode through which an electrolyte solution containing water flows; and a chemical species present between the anode channel and the diaphragm that decomposes, captures, or inactivates reactive oxygen species.

The utility model discloses a wet oxidation reactor which comprises a barrel, a steam inlet pipe is arranged on the left side of the bottom of the barrel, and an exhaust pipe is arranged on the right side of the top of the barrel; a wastewater inlet pipe is arranged on the left side of the top of the barrel; a drain pipe is arranged on the right side of the bottom of the barrel; the middle part of the cylinder body is communicated with a hydrogen peroxide pipe, and a tower tray which is horizontally arranged in the cylinder body is arranged below the liquid outlet end of the hydrogen peroxide pipe; an air inlet pipe is arranged above the liquid discharge pipe and is connected with an L-shaped air pipeline arranged in the cylinder body; a plurality of air spraying pipes are arranged on the air pipeline, and obliquely-arranged blocking eaves are arranged on the air spraying pipes in a matched mode. Gas and liquid are fully mixed, the mass transfer effect is good, the structure is simple, the use is convenient, and the COD (Chemical Oxygen Demand) of wastewater can be effectively reduced.

The utility model discloses a cumene oxidation reaction system and relates to the technical field of cumene production systems. The cumene oxidation reaction system is composed of a first preheater, a second preheater, a first oxidation reactor and a second oxidation reactor. Cumene is introduced through a first inlet of the first preheater, sequentially passes through the first preheater and the second preheater, then enters the first oxidation reactor and then flows to the second oxidation reactor, and materials after reaction are conveyed to a next treatment unit. Meanwhile, circulating materials of the second oxidation reactor and the first preheater form a loop, and the second preheater introduces a heat source and is communicated with the exhaust unit. According to the system, isopropylbenzene is preheated step by step through the first preheater and the second preheater, so that an ideal reaction temperature is achieved when materials enter the oxidation reactor, and the reaction efficiency and the product quality are remarkably improved; circulating materials of the second oxidation reactor are introduced into the first preheater, so that reaction heat is effectively recycled, external heat source consumption is reduced, and energy cost is reduced.

The invention discloses a method for reducing the concentration of iron ions in a nickel sulfate solution through ultrasonic oxidation, and belongs to the field of hydrometallurgy chemical engineering. The method comprises the following steps: putting an iron-containing nickel sulfate solution into an ultrasonic reactor, and applying ultrasonic waves while introducing oxygen; oxygen is strongly dispersed through cavitation and vibration effects of ultrasonic waves, the gas-liquid mass transfer and oxidation reaction process is greatly enhanced, and Fe < 2 + > is efficiently oxidized into Fe < 3 + >; and then Fe < 3 + > is hydrolyzed and precipitated by adjusting the pH value, and is removed by solid-liquid separation. Through the synergistic effect of ultrasound and oxidation, the iron removal rate and efficiency are remarkably improved, the method has the advantages of being low in cost, free of introduction of new impurities, environmentally friendly, easy to industrialize and the like, and the purity and quality of the nickel sulfate product can be effectively improved.

The invention discloses a preparation method of a water-resistant sulfur-resistant ultralow-temperature CO oxidation catalyst. The preparation method comprises the following steps: firstly, preparing an alpha-SiO2 carrier with a rich (101) crystal face by adopting a hydrothermal method; afterwards, an inorganic anchoring-organic grafting strategy is combined, an HF solution is used for conducting functionalization treatment on the surface of alpha-SiO2, methyl silicon trichloride is introduced, a Si-F-O-C-Si bonding structure is constructed, and the precious metal is accurately loaded on the bonding structure by means of a precursor in an organic grafting mode. The Si-F-O-C-Si bond not only regulates the surface electronic structure of alpha-SiO2 and inhibits the adsorption of SO2 on the active site of noble metal, but also can reduce SO2 by carbon atoms to prevent the oxidation process of SO2 on active lattice oxygen on the surface of the carrier; meanwhile, the F-O bond can rapidly provide reactive oxygen species for the Pt site, and CO oxidation reaction is promoted. Based on the design of the water-resistant and sulfur-resistant system, the prepared noble metal-based C-F-alpha-SiO2 catalyst shows excellent CO oxidation activity at the temperature of 80-110 DEG C.

The utility model belongs to the technical field of oxidation reaction device, specifically a kind of oxidation reaction device for chemical production, including outer storehouse, inner storehouse is installed in the outer storehouse, the side of inner storehouse is fixedly installed with several first connecting ring, second connecting ring is installed below the first connecting ring, and the first connecting ring and second connecting ring are formed with through slot between, several heat-conducting hollow boxes are provided in the inner storehouse, the inside of heat-conducting hollow box is separated into upflow channel and downflow channel by partition, by the heat-conducting liquid into hollow rotating rod, then into heat-conducting hollow box, heat-conducting liquid from upflow channel then again into downflow channel, to this sufficient heat is given to reactant, finally from the communicating pipe into the through slot formed between first connecting ring and second connecting ring, heat-conducting liquid from through hole into multiple through slots, finally from the liquid outlet pipe, heat-conducting liquid in through slot is fully contacted with inner storehouse, and heat-conducting is carried out to reactant from inside and outside simultaneously.

The invention discloses a wastewater treatment system and process for POE alcohol production, and the wastewater treatment system comprises a pretreatment unit, a deep oxidation unit, an efficient biodegradation unit, a catalytic oxidation electrolysis coupling unit, a salt-tolerant composite biological treatment unit and a post-treatment unit which are sequentially connected in series, the pretreatment unit comprises an adjusting tank, a demulsification reaction tank and a sedimentation tank which are sequentially connected in series, the deep oxidation unit comprises a supported bimetallic catalytic oxidation reactor, and the efficient biodegradation unit comprises an anaerobic bioreactor and an aerobic bioreactor. The catalytic oxidation and electrolysis coupling unit comprises a catalytic ozonation reactor and an iron-carbon micro-electrolysis reactor, the salt-tolerant composite biological treatment unit comprises a salt-tolerant hydrolysis acidification pool and a sequencing batch moving bed bio-membrane reactor, and the post-treatment unit comprises a precision filter and a disinfection pool. The method has the advantages that an integrated treatment system is constructed, process parameters are optimized, efficient purification of wastewater is achieved, it is ensured that effluent reaches the standard and is discharged, meanwhile, the treatment cost is reduced, and secondary pollution is reduced.

The invention discloses a wastewater treatment system and method for catalytic wet oxidation, and the treatment system comprises a vortex bubble generator; the oxidation reactor is positioned at the downstream of the vortex bubble generator; the heater is positioned at the upstream of the vortex bubble generator; and a preheater located upstream of the heater. According to the treatment system disclosed by the invention, the vortex effect of the wastewater is enhanced under the dual effects of the flow guide slit and the flow guide spiral of the vortex bubble generator, and the micro-nano bubble generation efficiency is improved. In the catalytic wet oxidation reaction process, oxygen enters the oxidation reactor in the form of micro-nano bubbles, and compared with millimeter-scale bubbles in a traditional gas distribution mode, the retention time of the oxygen is prolonged, the specific surface area of the bubbles is large, the gas-liquid mass transfer rate is increased, the generation rate of free radicals is increased, and the catalytic wet oxidation reaction efficiency is improved. Meanwhile, oxygen enters the oxidation reactor in the form of micro-nano bubbles, so that the consumption of the oxygen is reduced while the reaction efficiency is improved.

The invention discloses a degradation-resistant organophosphorus wastewater biochemical coupling advanced oxidation treatment method which comprises the following steps: S1, introducing degradation-resistant organophosphorus wastewater into an adjusting tank, carrying out water quality analysis and coagulation pretreatment, and adjusting the pH value; s2, introducing the pretreated wastewater into an anaerobic reaction device for anaerobic treatment; s3, introducing the anaerobic effluent into an aerobic reaction device, and carrying out microbial degradation treatment; and S4, precipitating the aerobic effluent, introducing the precipitated aerobic effluent into an advanced oxidation device, adding potassium persulfate and a ferrous activator under a heating condition, and starting an advanced oxidation reaction to realize removal of phosphorus. According to the method, ferrous iron is used as an activating agent to catalyze potassium persulfate to generate sulfate free radicals and hydroxyl free radicals, organic phosphorus is rapidly converted into orthophosphorus, meanwhile, phosphate precipitates are formed, and the dosage of a subsequent phosphorus removal agent is reduced or not increased.

The invention belongs to the technical field of biological materials, and particularly relates to an implant coating as well as a preparation method and application thereof. The invention aims to provide a material for an implant coating, which is characterized in that a cytoplasmic membrane and an oxidation response lipid peptide hybrid nanoparticle compress a gene through positive charge adsorption, and the oxidation response lipid peptide hybrid nanoparticle is a lipid peptide formed by connecting a branched basic amino acid head and a hydrophobic tail through an oxidation response bond, the hydrophobic tail part is a long-chain alkyl group or a saturated / unsaturated fatty acid chain, and the cytoplasmic membrane is an amphiphilic cytoplasmic membrane which has high functional protein expression capability after being subjected to hypoxia treatment. The invention provides an innovative combined strategy, namely fusion of gene engineering and bionic technology, and aims to improve the efficiency of coating gene transfection, actively regulate and control the peripheral microenvironment of the implant, accurately promote directional recruitment and enrichment of stem cells and effectively inhibit local inflammatory response, thereby establishing long-term stable bone-implant integration.

This invention relates to the field of polymer materials and building material additives, specifically to a heavy metal complex-type tailings backfill water-reducing agent based on bio-enzyme catalysis and its preparation method. The preparation method includes monomer premixing, enzymatic oxidative coupling polymerization, and termination and activation steps. This method uses a buffer solution to adjust the pH of the multi-monomer system to construct a homogeneous aqueous environment, continuously introducing oxygen-containing gas to maintain the oxidation reaction cycle. Its core is the use of bio-enzyme catalysis to generate a polymer skeleton containing aromatic ring C-C bonds or C-O-C aromatic ether bonds from the monomers, and the construction of a stable chemical complex structure for heavy metals through the introduction of nitrogen-containing heterocyclic compounds. This invention solves the technical problems of traditional water-reducing agents being prone to uncontrolled polymerization and lacking chemical anchoring ability in heavy metal environments. It utilizes enzymatic polymerization, steric hindrance, and chemical complexation to synergistically address the synthesis obstacles and heavy metal leaching risks associated with complex industrial wastewater, effectively suppressing secondary pollution and improving the compressive strength of the backfill.

The invention relates to the technical field of preparation of microbial agents, in particular to a preparation method of a microbial agent for sewage treatment. During working, firstly, strains are selected, activated and cultured, the strains are inoculated into the fermentation culture medium, glucose, amino acid, yeast extract, magnesium sulfate and monopotassium phosphate contained in the microbial growth promoting agent in the fermentation culture medium can provide nutritional support for microorganisms, growth and metabolic activity of the microorganisms are promoted, and the yield of the microorganisms is increased. The available chlorine plays a role in sterilization and disinfection, the activated carbon nigra can adsorb harmful substances and impurities in the fermentation culture medium and improve the purity of the culture medium, the sodium pyrosulfite can inhibit the oxidation reaction of microorganisms and prevent nutrient substances in the culture medium from being oxidized and damaged, and the prepared microbial agent is low in cost, wide in treatment range, high in stability and suitable for industrial production. The method can eliminate harmful gas and improve the treatment environment, is natural and environment-friendly, and has lower energy consumption and less secondary pollution compared with other treatment methods.

This invention provides a method for real-time monitoring of intracellular NADH based on a nanowire-coupled photoelectrochemical sensor, belonging to the field of biosensor technology. The method utilizes nanowires MWCNT@FITC-PFBT Pdots-PDDA-Pt NWs that can spontaneously and non-destructively semi-embed in cells, reacting with intracellular NADH to generate electron transfer events. A photosensitive electrode Flex ITO-WO3 / BiVO4, coated on the cell surface, is used to gather the electrical signal from the nanowires, accelerating the intracellular oxidation reaction and improving the current response. This method enables real-time monitoring of intracellular NADH. It offers advantages such as low cost, simple operation, and high sensitivity, and is widely applicable to the detection of intracellular signaling molecules.

The invention belongs to the technical field of biomedical detection and immunoassay, and particularly discloses a mycobacterium tuberculosis detection probe as well as a preparation method and application thereof. The mycobacterium tuberculosis detection probe provided by the invention comprises a capture probe and a signal probe, the capture probe is magnetic nanoparticles of which the surfaces are fixedly loaded with a mycobacterium tuberculosis specific antibody 1, and the signal probe is a mycobacterium tuberculosis specific antibody 2 of which the surface is marked with a photosensitizer. According to the mycobacterium tuberculosis detection probe disclosed by the invention, a photosensitizer labeling technology is combined with immunoassay, so that high-sensitivity detection of mycobacterium tuberculosis can be realized under a mild condition; under the irradiation of visible light, active oxygen generated by the photosensitizer can catalyze oxidation reaction of various chromogenic substrates, so that rapid colorimetric detection of mycobacterium tuberculosis is realized, and the kit is particularly suitable for the requirements of clinical serum sample detection and the like; in addition, the fluorescent probe also has the advantages of simple preparation process, strong recognition specificity, high detection sensitivity, good stability and reproducibility and the like.

The application relates to the field of hydrogen production from methane, and specifically discloses a new process for methane catalytic cracking, which comprises the following steps: a reduction reaction, wherein methane is introduced into an oxygen carrier to perform the reduction reaction, the reaction temperature is controlled to be 500-700 DEG C, the reduction is performed under normal pressure for 2-4 hours, and generated gas I and a metal with catalytic activity are obtained; a catalytic cracking reaction, wherein when hydrogen is generated, the generated gas I and the reduced oxygen carrier are separated, then methane gas is continuously introduced into the reduced oxygen carrier to perform the catalytic cracking reaction, the reaction temperature is 600-900 DEG C, and generated gas II is obtained; a synthesis gas reaction, wherein the generated gas I is dried, when no hydrogen is generated, the dried generated gas I is used to perform the synthesis gas reaction, the reaction temperature is 500-900 DEG C, and generated gas III is obtained; and an oxidation reaction, wherein air is introduced at a gas speed of 10 mL / min, the reactor temperature is controlled to be 600-1000 DEG C, and generated gas IV and the oxygen carrier are obtained. The preparation method has the advantages that the methane conversion rate and the catalyst service life can be improved.

The invention provides a coal inhibition mechanism research system and quantification method based on microscopic component in-situ monitoring, an integrated reaction cabin system is constructed, coal sample functional groups, free radicals and gas product data are synchronously collected during temperature programming, and a linkage evolution cloud chart is established; forming a three-gradient experiment group by using supercritical CO2 cleaning and separating physical and chemical inhibition effects; based on an oxidation reaction kinetic model, experimental group data are compared to quantify physical and chemical inhibition contribution rates, accurate analysis of a coal inhibition mechanism is realized, a method and equipment support is provided for directional design of an inhibitor, and the method is suitable for the field of coal spontaneous combustion prevention and control and inhibition technology research. The problems that in existing coal body inhibition mechanism research, coal body microcosmic components and gas products in the heating process cannot be synchronously collected to define the inhibition effect microresponse rule, physical and chemical inhibition effects are difficult to separate, the precision of a quantitative model is insufficient, related equipment is single in function and poor in collaboration, and data interaction is insufficient are solved.

The application discloses a coal oxidation prediction and functional group identification method and system based on graph attention, and aims at the problems that the existing coal low-temperature oxidation prediction model is difficult to reflect molecular structure information, cannot identify key oxygen-containing functional groups, and the edge feature of the graph attention network is static. Firstly, the application constructs an oxidation reaction feature enhanced coal molecular graph containing atom nodes, functional group nodes, oxygen nodes and oxygen-functional group action edges. Then, a bidirectional gate edge evolution mechanism is introduced into the graph attention network to realize dynamic updating of the edge feature. Finally, the oxygen-containing functional group contribution degree is sorted and the key functional group is identified by combining the functional group node attention weight, the edge attention weight, the gate activation value, the oxidation path score and the feature contribution degree. The application can accurately predict the coal low-temperature oxidation property, and provide an interpretable identification result of the key oxygen-containing functional group, thereby providing a basis for coal spontaneous combustion mechanism analysis and inhibitor design.