258 results about "Adsorption desorption" patented technology

The invention discloses a zeolite adsorption and desorption integrated treatment system, and particularly relates to the field of zeolite separation treatment, and the zeolite adsorption and desorption integrated treatment system comprises a process sensing module, a dynamic partition control module, a global optimization control module and a cooling regeneration module. According to the zeolite adsorption and desorption integrated treatment system, the problem of blind operation in the traditional technology is solved through the process sensing module, a data basis is provided for dynamic partition, the intelligent monitoring level is improved, and the performance of an adsorbent is fully exerted; the problem of non-uniform heat and mass transfer of a bed layer is effectively solved through the dynamic partition control module, the desorption heat utilization efficiency is improved, and meanwhile, the service life of an adsorbent is prolonged; a dynamic optimization function is constructed through the global optimization control module, energy consumption, solvent recovery income and stability are comprehensively considered, self-adaptive adjustment of operation parameters is achieved, the energy consumption is reduced while the processing efficiency is guaranteed, and the environmental benefits are remarkably improved.

The invention discloses a method for simulating migration of pollutants in a bioretention pond based on COMSOL Multiphysics, and the method comprises the following steps: determining design parameters of the bioretention pond by integrating rainfall runoff pollution data of an actual engineering construction area and carrying out related calculation, determining the pollutants, and carrying out the simulation of the migration of the pollutants in the bioretention pond. Pollutant accumulation characteristics and adsorption and desorption characteristics of pollutants in a filler are obtained through a pollutant accumulation experiment, a pollutant adsorption leaching experiment and the like, a bioretention pond pollutant migration model comprises a fluid flow equation and a solute migration equation, and links such as convection diffusion, adsorption and desorption, dissolution and reaction degradation are considered in solute migration. The efficient simulation on the pollutant transportation of the bioretention pond is realized. According to the method, the influence of different filler combinations and design scales on the pollutant removal efficiency of the bioretention pond is explored, the parameter conditions of water outlet target optimization control are determined, and scientific support is provided for the optimization design of the bioretention pond.

The invention provides a nitrogen-rich organic molecule modified graphene oxide composite material as well as a preparation method and application thereof. The method comprises the following steps: adding graphene oxide into a polar organic solvent, and performing ultrasonic dispersion and uniform mixing to obtain a graphene oxide dispersion liquid; the nitrogen-rich organic molecule modified graphene oxide composite material is prepared by the following steps: adding graphene oxide into a reaction kettle, adding 3, 5-diamino-1, 2, 4-triazole, uniformly mixing, carrying out nucleophilic reaction under a weakly acidic heating condition, repeatedly washing a product with ethanol and pure water, and freeze-drying to obtain the nitrogen-rich organic molecule modified graphene oxide composite material, and the composite material is used as an adsorbent, has a stable structure and can efficiently adsorb heavy metal ions. Through modification of the nitrogen-rich organic matter, the adsorbent obtains richer groups and adsorption sites, and can show different adsorption capacities on inorganic metal cations through multiple adsorption mechanisms. An adsorption result shows that the adsorbent has excellent adsorption selectivity on low-concentration copper ions in an aqueous solution. Through multiple adsorption-desorption experiments, the composite material still shows excellent reutilization performance.

The invention discloses a method for extracting and purifying flavone in litsea coreana through an ultrasonic-assisted eutectic solvent, and belongs to the technical field of green processing of natural products. The invention provides a method for efficiently preparing litsea coreana flavone by integrating computer prediction, green solvent extraction and resin purification technologies. The method comprises the following steps: firstly, calculating and screening a deep eutectic solvent system with the highest affinity with the litsea coreana flavone on the basis of a COSMO-RS theoretical model, then coupling the optimized DES with an ultrasonic-assisted extraction (UAE) technology, and through the synergistic effect of the DES and the UAE technology, remarkably improving the extraction rate of the litsea coreana flavone and furthest keeping the biological activity of a target component; then, a macroporous resin dynamic adsorption-desorption purification process is linked, so that high-selectivity enrichment and impurity removal of the flavonoid compounds in the crude extract are realized, a high-purity product is obtained, and a complete process route from intelligent screening, efficient extraction to precise purification is finally formed.

The invention discloses a carbon dioxide trapping method which comprises the steps of feeding, adsorption, material replacement, primary desorption and secondary desorption, in the material replacement step, after the replacement process of a single adsorption and desorption unit lasts for M, a valve of the adsorption and desorption unit is closed, and the replacement process is repeated after the replacement process is stopped for (N-1) M, n is the total number of the adsorption and desorption units arranged in parallel, in the process that a single adsorption and desorption unit stops running, the pipe chain conveyor continuously runs, the other adsorption and desorption units alternately carry out solid amine material replacement, and the replacement time and the stop time are equal; according to the two-stage desorption, carbon dioxide in a solid amine material is fully desorbed through high-temperature desorption and negative-pressure desorption, a plurality of adsorption and desorption units alternately perform replacement so that the equipment can continuously run, the efficiency of the carbon dioxide trapping process is improved by combining the two-stage desorption operation, and the cost loss caused by the vacuum period of the equipment in the trapping process is reduced. The invention further discloses a carbon dioxide trapping device.

The invention discloses a light adsorption-desorption-resistant adsorption tower, a coating process, a helium purification system and a helium purification method, and mainly aims to solve the problem that in the prior art of natural gas helium purification, adsorption tower equipment is aged and corroded, and the purity stability of a helium product is influenced by adsorption and desorption formed by the adsorption tower. The light adsorption tower resistant to adsorption and desorption is provided, the service life of adsorption equipment is prolonged while the purity stability of a helium product is improved, and meanwhile the cost of helium purification through adsorption is reduced through the structural design of a helium purification system.

The invention relates to the technical field of coal bed gas development, and particularly discloses a numerical simulation method for multi-field coupling and microwave enhanced drainage and mining of a deep coal bed, which realizes accurate simulation of the whole process of drainage and mining of deep coal bed gas through six key steps: firstly, obtaining a coal bed parameter system; establishing a temperature coupling adsorption and desorption model, and quantifying the influence of the high ground temperature environment on the gas occurrence by correcting a Langmuir equation; constructing a dual-medium heat-gas-liquid-solid full-coupling control equation set which covers coal deformation, gas-water two-phase seepage, heat transfer and electromagnetic field equations; a microwave heat effect model is defined, and electromagnetic energy-heat energy conversion is calculated through a dielectric constant mixing model; deducing a porosity / permeability dynamic evolution equation, and coupling effective stress, matrix shrinkage and a thermal expansion effect; and finally, a COMSOL Multiphysics platform is adopted to realize multi-field coupling solution, and a productivity index is calculated through well circumference integration. According to the method, the inherent limitation of a static parameter model is overcome, and the precision and efficiency of numerical simulation are remarkably improved.

The invention provides a method for decomposing and mineralizing fluorine-containing organic matter wastewater, which is applied to the technical field of treatment of fluorine-containing organic matter wastewater generated in a perfluoroether elastomer emulsion flocculation process, and comprises the following steps: S1, carrying out adsorption and desorption treatment on the fluorine-containing organic matter wastewater to obtain a concentrated solution of the fluorine-containing organic matter wastewater; s2, hydrogen peroxide and ferrous ions are added into a container containing the concentrated solution to obtain a mixed solution, the pH of the mixed solution is adjusted to be 2-4, the concentration mass ratio of the hydrogen peroxide to organic matter contained in the fluorine-containing organic matter wastewater is 1: 1-2, the molar ratio of the hydrogen peroxide to the ferrous ions is 1-6: 1, micro-nano bubbles are introduced into the mixed solution, and ultrasonic treatment is conducted; s3, calcium hydroxide is added into the treated mixed solution, calcium fluoride precipitates are obtained through centrifugal treatment, and the fluorine-containing organic matter in the wastewater can be degraded and mineralized.

The invention relates to the field of electrochemical energy storage, and discloses a vanadium redox flow battery stack optimization and performance prediction method, which comprises the following steps: constructing a high-precision reaction kinetic model, and accurately describing the kinetic behavior of an electrode reaction based on a multi-step reaction mechanism, a surface adsorption-desorption process and heterogeneous surface reaction distribution; based on the output of the reaction kinetic model, constructing a multi-physical field coupling model, including ion mass transfer, fluid dynamics and heat transfer models, to cooperatively simulate the ion concentration, fluid flow and temperature field distribution in the galvanic pile; and based on the state variables of the multi-physics field coupling model, constructing a dynamic prediction model of chemical reaction-heat-fluid coupling, and predicting the future performance of the galvanic pile in real time through a long and short term memory network model. According to the method, the energy efficiency, the power density and the service life of the vanadium redox flow battery can be improved, and support is provided for intelligent management and optimization of the vanadium redox flow battery.

The invention discloses a double-layer piezoelectric sensor and an application and method of the double-layer piezoelectric sensor in representing beta-phase polyvinylidene fluoride membrane adsorptive pollution, a piezoelectric beta-phase polyvinylidene fluoride membrane is a porous membrane formed by a blending system of polyvinylidene fluoride and ionic liquid and has a beta-phase crystal structure and a piezoelectric response characteristic, and the piezoelectric beta-phase polyvinylidene fluoride membrane is prepared by spin-coating a PVDF solution on a chip. The double-layer piezoelectric sensor containing the beta-phase polyvinylidene fluoride membrane is obtained, and QCM-D detection is carried out to characterize the adsorptive pollution condition of the beta-phase polyvinylidene fluoride membrane. Adsorption and desorption behaviors of organic matters with different dissolvability and mixtures thereof on the beta-phase PVDF membrane layer are represented, the adsorption result is matched with the hole blocking resistance in the actual membrane pollution process, and the hole blocking resistance is calculated by monitoring the fifth overtone of the piezoelectric quartz sensor. And the quality of soluble organic matters adsorbed on the PVDF surface and the property of an adsorption layer can be evaluated by using a frequency change value and a dissipation value, and a scheme is provided for researching the pollution behavior of the beta-phase polyvinylidene fluoride membrane.

The invention discloses a water body particulate phosphorus tracing method and electronic equipment. The method comprises the following steps: acquiring data of particulate matters from multiple sources in a research area; performing composite fingerprint factor analysis on the inorganic particles to obtain inorganic particle state phosphorus contribution rates of multiple sources; performing isotope analysis on the organic particulate matters to obtain contribution rates of organic particulate phosphorus from multiple sources; determining the adsorption-desorption balance rate of the particles from the plurality of sources to phosphorus; and calculating the relative contribution rate of the particulate phosphorus of each source based on the contribution rate of the inorganic particulate phosphorus of the multiple sources, the contribution rate of the organic particulate phosphorus of the multiple sources and the adsorption-desorption equilibrium rate of the particulate matters of the multiple sources to the phosphorus. According to the method, the multi-parameter advantage of the composite fingerprint factor and the specificity of the isotope technology are combined, so that the tracing accuracy and feasibility of the particulate phosphorus in the water body are improved, more accurate tracing information is provided, and the high-precision identification of the source of the particulate phosphorus in inorganic and organic particulate matters is realized.

The invention discloses an adsorption / desorption device for salt lake adsorption and lithium extraction and application thereof.The adsorption / desorption device for salt lake adsorption and lithium extraction comprises an adsorption and desorption column, an adsorbent containing area used for containing an adsorbent is arranged in the adsorption and desorption column, and a positive electrode and a negative electrode are oppositely arranged in the adsorbent containing area; the positive electrode and the negative electrode are connected through a direct-current power supply capable of reversing poles, a variable electric field can be formed during pole reversing, and the variable electric field can drive lithium ions to migrate and accelerate desorption of the lithium ions from an adsorbent, so that the lithium ion desorption efficiency is favorably improved, the concentration of the lithium ions in a desorption solution is higher, fresh water is saved, and the service life of the lithium ion battery is prolonged. And time and energy consumption are saved for subsequent concentration of lithium ions. The adsorption / desorption device for adsorbing and extracting lithium in the salt lake is simple in process flow and simple and convenient to operate, can effectively improve the desorption efficiency and save working hours, energy and fresh water, and has practical significance on utilization of lithium resources in the salt lake.

The invention belongs to the technical field of gas adsorption and desorption testing, and discloses a one-stop gas-containing coal competitive adsorption-desorption-spontaneous combustion traceability system which comprises a gas supply unit, a program temperature control box, a vacuum pump and a control unit. A reaction unit is arranged in the program temperature control box and comprises a first preheating pipe, a second preheating pipe, a third preheating pipe, a first reference tank, a second reference tank and a coal sample tank. The invention further provides a testing method of the one-stop gas-containing coal competitive adsorption-desorption-spontaneous combustion traceability system. According to the invention, competitive adsorption and desorption under different temperatures and different pressure working conditions in an actual coal mine well and a heating oxidation process under an air leakage condition immediately after competitive adsorption in the coal mine well are fully simulated, so that the continuity and the accuracy of an experiment are improved. The method can be widely applied to the fields of coal mine safety production, gas disaster prevention and control and the like, and has important practical value and social benefit.

The invention discloses detection equipment and method for on-site analysis of volatile organic compounds in soil, the detection equipment comprises a shell, a sample heating and purging unit, a water removal unit, an adsorption and desorption unit and a separation and detection unit, the shell is used for mounting and fixing other units, the sample heating and purging unit is used for heating a sample, and the water removal unit is used for removing water. The water removal unit is used for carrying out refrigeration water removal and carrier gas preheating on sample gas, the adsorption and desorption unit is used for carrying out secondary water removal on the sample gas and adsorbing and desorbing volatile organic compounds, the separation and detection unit is used for detecting the total amount, variety and content of volatile pollutants, soil is heated by the sample heating and purging unit, and after a sample is volatilized, the sample is sent to the detection unit. Purge gas enters the water removal unit for refrigeration and water removal and then is conveyed to the adsorption and desorption unit for secondary water removal, the purge gas containing volatile organic pollutants is adsorbed and collected, an adsorption pipe is heated after collection is completed, and adsorbed sample gas is desorbed and conveyed to the separation and detection unit for total pollution amount, type and content detection.

The invention discloses a condensate gas adsorption and desorption capability testing method, which comprises the following steps: screening reservoir rock broken samples, loading the samples into a sample cylinder, injecting methane to make the gas pressure of the sample cylinder higher than the condensate gas dew point pressure, injecting mixed gas into a reference cylinder to reach the set pressure, communicating the sample cylinder with the reference cylinder to prepare condensate gas, and testing the adsorption and desorption capability of the condensate gas. Then injecting condensate gas, increasing the pressure to reservoir pressure from a set pressure gradient, measuring the adsorption amount of the rock to the condensate gas at different pressure points above the dew point pressure, and then reducing the pressure in a gradient manner to measure the desorption amount of the rock to the condensate gas at different pressure points. Based on the constant mass expansion experiment result of the condensate gas, the measurement error of the reverse condensate oil volume on the gas desorption amount is eliminated, and the adsorption / desorption capacity of the rock sample on the condensate gas is evaluated. According to the scheme, the adsorption / desorption amount of the condensate gas can be accurately measured, and reserve calculation and efficient development of the condensate gas reservoir are facilitated.

The invention discloses a dynamic tracking adsorption testing device and method adaptive to different carbon dioxide partial pressure adsorption properties of multi-scene adsorbents, and solves the problems that an existing device cannot dynamically track the adsorption process and lacks a standard processing device and method for multi-parameter linkage analysis. The dynamic tracking adsorption testing device comprises a reaction master control, a self-regulation gas supply system and a gas analysis system, the gas inlet end of the reaction master control is communicated with the self-regulation gas supply system, and the gas outlet end of the reaction master control is communicated with the gas analysis system; the dynamic tracking adsorption test method comprises the following steps: performing vacuum activation pretreatment on a test sample, adsorbing and desorbing to obtain mass change in an adsorption stage and import and export concentration data, and establishing a triple adsorption quantity calculation model based on the mass change in the adsorption stage and the import and export concentration data; and completing an adsorption cycle stability test process according to the triple adsorption capacity calculation model after data analysis.

The invention discloses a method and system for recycling CL-20 in strong acid waste liquid through macroporous adsorption resin, and belongs to the technical field of environmental remediation. The method comprises the steps that the macroporous adsorption resin is added into the strong acid waste liquid containing CL-20, and an adsorption reaction is conducted under set conditions; after the adsorption is completed, separating the resin saturated by adsorption from the waste liquid, and treating the resin saturated by adsorption by utilizing a desorption agent; putting the desorbed resin into the waste liquid containing CL-20 again for adsorption, and repeating adsorption-desorption; and treating the solution containing CL-20 obtained by adsorption-desorption to obtain a CL-20 solid. According to the method disclosed by the invention, the CL-20 adsorption rate can reach 97% or above under the condition that the adding amount of the resin is 10g / L, the concentration of the CL-20 in ethyl acetate after three times of circulation can reach 2.60 g / L, the content of the CL-20 in the finally recovered solid is 37.87%, and the total recovery rate reaches 58.25%. The invention provides an efficient, economic and environment-friendly CL-20 recovery method, the treatment problem of the CL-20-containing strong acid waste liquid can be effectively solved, and meanwhile, the recycling of valuable chemicals is realized.

The invention relates to a uranium migration prediction model based on particle swarm optimization and application of the uranium migration prediction model in uranium migration prediction in granite fractures. According to the method, by introducing a retention coefficient and an exponential decay item coupled with pH sensitivity, solute retention behaviors of a fissure domain and a matrix domain are dynamically corrected, and accurate description of adsorption / desorption, precipitation and re-release processes of U (VI) under an acid-alkali condition is realized. Parameter inversion is performed on the model by combining a particle swarm optimization (PSO) algorithm, so that the calculation efficiency and the prediction precision are remarkably improved. Experimental verification shows that the model has high stability and reliability (SSE is smaller than or equal to 0.026, RMSE is smaller than or equal to 0.045, and Error is smaller than or equal to 2.82%) under various pH, pressure and temperature conditions, and an efficient and interpretable analysis tool is provided for uranium migration risk assessment in the deep geological disposal environment.

The invention relates to the technical field of oil gas recovery, and discloses an oil gas recovery device and method for an oil product loading and unloading vehicle and a tank field, and the oil gas recovery device comprises a compression and condensation unit which is used for compressing oil gas generated in the loading process and condensing and recovering part of organic matters; the adsorption and desorption unit comprises a plurality of adsorption tanks and is used for adsorbing organic matters in the oil gas through activated carbon and recovering high-concentration organic matters through vacuum desorption; the low-temperature absorption unit is used for removing organic matter components in the desorption gas; and the control system is used for controlling the operation of each unit and acquiring the operation data of the device in real time for analysis and processing. By adopting the technical scheme of combining compression condensation and gas-liquid separation, the oil gas is subjected to effective primary treatment through the compressor and the condenser, the liquid-phase component in the oil gas is separated and recycled, and the technical effect of reducing the treatment load of a subsequent adsorption and desorption unit is achieved.

The invention relates in part to a growth model for the growth of Group III-Group V (III-V) alloys by molecular beam epitaxy (MBE) based on the kinetics of adsorption, desorption, incorporation, anion exchange, anion-assisted removal, and surface droplet accumulation of the Group V elements. The invention also relates to methods to optimize MBE growth conditions used to produce a target III-V alloy composition. The invention is further related to methods of predicting III-V alloy compositions resulting from a set of MBE growth conditions.

The invention relates to an incineration-tail gas purification device and method for treating carbon-14-containing radioactive waste, and belongs to the technical field of radioactive waste treatment. The device comprises an incineration unit, a tail gas purification unit and a gas purification unit; the incineration unit is connected with the feeding assembly through a pipeline, the feeding assembly is used for introducing combustion gas and carbon-14-containing radioactive waste into the incineration unit, and the incineration unit is used for conducting incineration treatment on the carbon-14-containing radioactive waste; the tail gas purification unit comprises a filtering assembly, an acid removal adsorption column and a water removal dryer which are sequentially connected through a pipeline; the gas purification unit comprises a CO2 adsorption / desorption column, a first gas pump, a storage tank and a second gas pump, and the CO2 adsorption / desorption column is used for capturing and releasing radioactive CO2. Efficient solid-to-gas conversion and large-scale volume reduction of carbon-14-containing radioactive waste are achieved, various radioactive elements in tail gas are removed, and high-purity carbon-14-containing CO2 gas is obtained.

The utility model discloses a VOCs condensation adsorption desorption regeneration advanced treatment device which comprises a condensation barrel, the side surface of the condensation barrel is fixedly connected with a receiving groove, the side surface of the condensation barrel is fixedly connected with a water outlet, the upper surface of the condensation barrel is fixedly connected with an air inlet pipe, the upper surface of the condensation barrel is fixedly connected with an installation frame, and the installation frame is fixedly connected with a water inlet pipe. A sliding groove is formed in the upper surface of the mounting frame, a water outlet plate is movably connected to the lower surface of the mounting frame, and a clamping plate is fixedly connected to the side surface of the water outlet plate. According to the structure, condensate water is sprayed to the surface of the gas inlet pipe through the water outlet pipe, the connecting pipe and the first water pump, waste gas is preliminarily degraded, dust in air is reduced in the spraying process, the waste gas is cooled by natural air in the falling process, and the waste gas enters the condensation barrel to be secondarily condensed and degraded, so that the condensation effect is improved, and waste gas treatment is more thorough; condensate water can be cooled in time through three times of turning of the condensation barrel, the receiving groove and the cooling box.

To provide a water generator which can be miniaturized and can suppress power consumption.SOLUTION: The water generator 1 includes an adsorption / desorption unit container 13 that houses the adsorption / desorption unit 11, a compressed air supply section 15 that supplies compressed air to the adsorption / desorption unit container 13, a degassing section 17 that recovers gas in the adsorption / desorption unit container 13, and a water recovery section 19 that recovers water from the gas in the adsorption / desorption unit container 13 recovered by the degassing section 17.SELECTED DRAWING: Figure 1

The invention relates to the technical field of water treatment and purification engineering, in particular to a biological activated carbon in-situ adsorption capacity evaluation and failure prediction method based on an adsorption-regeneration coupling kinetic model, which comprises the following steps: collecting monitoring data in the operation process of target biological activated carbon in real time; the monitoring data are input into a pre-constructed dynamic coupling kinetic model, the instantaneous adsorption capacity of the target biological activated carbon is calculated, the adsorption site availability rate change trend and the adsorption capacity change curve are obtained, the failure critical value is calculated, and the dynamic coupling kinetic model is used for determining the adsorption capacity of the target biological activated carbon through coupling water phase-adsorption phase-biological phase material balance. And the whole process of mass transfer migration, adsorption-desorption, microbial degradation and adsorption site regeneration of the biodegradable organic carbon and the non-biodegradable organic carbon in the biological activated carbon filter is quantitatively described. The in-situ adsorption capacity of the biological activated carbon is dynamically evaluated in real time based on a microorganism regeneration mechanism, and high-precision prediction of activated carbon failure is achieved.

The present invention provides an atmospheric water extraction device and operating method based on hygrochromic drive. The device is composed of a hygrochromic material, a graphene coating, a radiative cooling coating, and a water collection chamber. The present invention utilizes the changes in the spectral properties of the hygrochromic material during the water adsorption-desorption process to effectively reflect or fully transmit sunlight to control the temperature of the hygrochromic material, thereby realizing an atmospheric water extraction process that is completely driven spontaneously by humidity and temperature. Graphene is used as the bottom coating of the hygrochromic material, and its excellent photothermal capacity is utilized to promote the desorption process of water in the hygrochromic material. A radiative cooling coating is used to cool the top surface of the water collection chamber to promote the condensation and collection process of water vapor. The present invention does not require sunshade equipment, manual intervention, or additional power input, and can spontaneously control the adsorption and desorption processes in atmospheric water collection. It has great application prospects in water collection in arid areas.

The utility model provides an adsorption and desorption tank which comprises a tank body, the tank body is vertically arranged, the upper end and the lower end of the tank body are respectively connected with an upper sealing head and a lower sealing head, the lower sealing head is connected with a three-way pipe, the upper sealing head is connected with a discharging pipe and an air inlet pipe, a supporting plate with holes is arranged at the lower end in the tank body, and a pressing plate with holes is arranged at the upper end in the tank body. A molecular sieve adsorption and desorption agent is filled between the porous supporting plate and the porous pressing plate; a bracket is further fixedly connected into the lower end socket, and the supporting plate with the holes abuts against the bracket. According to the utility model, the problem that the production cost is increased due to reduction of the normal propyl alcohol recycling amount caused by excessive water content in the prior art is solved. The utility model also provides a device for removing water in n-propyl alcohol, which comprises a pair of the adsorption and desorption tanks, and the two adsorption and desorption tanks are combined to alternately perform adsorption and desorption processes, so that the continuity of dehydration operation is ensured, and the overall production efficiency can be further improved.

The application discloses a kind of zeolite molecular sieve adsorption desorption VOCs waste gas processing device and processing method, it is related to waste gas treatment technical field.The zeolite molecular sieve adsorption desorption VOCs waste gas processing device and processing method, including shell, the shell is divided into adsorption zone, desorption zone and cooling zone, further including fan-shaped zeolite piece, be located in shell interior, multiple fan-shaped zeolite piece splicing is formed into circular zeolite runner;Shaft, the shaft is located in the middle of zeolite runner, fan-shaped zeolite piece can be moved on the shaft along axial direction.This application is spliced into circular zeolite runner by setting multiple fan-shaped zeolite piece, under the cooperation of sliding part and guide groove, control the axial stagger of two fan-shaped zeolite pieces in adjacent when being located in desorption zone and cooling zone along zeolite runner, increase the contact area of fan-shaped zeolite piece and hot air and cooling air, beneficial to realize efficient desorption and cooling.

A device and a method for maintaining the stability of anaerobic ammonium oxidation (anammox) by using a combined zeolite filler to resist water quality fluctuations are provided. The device includes a water inlet tank, an anammox reactor, and a water outlet tank, where the anammox reactor is filled with the combined zeolite filler maintained in a state of suspension, domestic sewage enters the anammox reactor through a water inlet pump, and effluent water enters the water outlet tank through an overflow port. The device combines the physical characteristics of zeolite adsorption of ammonium with the anammox process: when the concentration of ammonium in the influent water is too high, the zeolites will temporarily store the excess ammonium adsorbed; when the concentration of nitrite in the influent water is too high, the zeolites are capable to release the stored ammonium into a liquid phase through balanced adsorption desorption.

The application provides a sulfhydrylated metal organic framework material and a preparation method and application thereof, octadecyl dimethyl betaine and F127 are dissolved in deionized water, acetic acid, ZrCl4 and n-hexadecane are added, and stirring is performed to form an emulsion; BDC-SH coordination self-assembly reaction is added; centrifugation, washing, template removal and drying are performed, and a hollow mesoporous UiO-66-SH material with an internal cavity, a continuous shell layer and a nanometer ion channel radially extending from the internal cavity to the outer surface is obtained. By pre-setting the reaction temperature and the precursor supplementing frequency, the particle size, the nanometer ion channel length and the stacking layer number of the material are adjusted in the range of 200nm-600nm, 60.35nm-208.67nm and 1-3 layers. The material has rich S-H active sites, and the Hg 2+ The ion adsorption capacity can reach 2090.7mg·g ‑1 After multiple adsorption-desorption cycles, the material still has good structural stability and adsorption performance.

The invention belongs to the technical field of adsorption type atmospheric water collection, and particularly discloses a modified fly ash / porous sponge composite material and a preparation method and application thereof, and the method comprises the following steps: S1, carrying out surface modification on fly ash; step S2, carrying out pretreatment on the melamine sponge; s3, preparing the modified fly ash / porous sponge composite material. According to the modified fly ash / porous sponge composite material and the preparation method and application thereof, the prepared modified fly ash / porous sponge composite atmospheric water collection material has excellent adsorption and desorption performance, and the adsorption capacity of the modified fly ash / porous sponge composite atmospheric water collection material under the relative humidity of 60% reaches 2.68 g <-1 >; the material has fast adsorption and photo-thermal desorption capability, has good recyclability, and can be used for collecting water in the atmosphere.