225 results about "Adsorption method" patented technology

The utility model provides a BOG (Boil Off Gas) dehydrogenation system, which belongs to the technical field of gas separation and comprises a dehydrogenation device, the dehydrogenation device is connected with a mixed gas source unit and a circulating heat exchange medium unit, and one end, far away from the mixed gas source unit, of the dehydrogenation device is connected with a dehydrogenation mixed gas unit; the dehydrogenation device comprises a heat exchange box body, a plurality of hydrogen storage alloy tank bodies are arranged in the heat exchange box body, each hydrogen storage alloy tank body is connected with a mixed gas inlet and a mixed gas outlet, the mixed gas inlet is connected with a mixed gas source unit, and the mixed gas outlet is connected with a dehydrogenation mixed gas unit; the BOG gas dehydrogenation system further comprises a control system, and the control system is connected with the dehydrogenation device. According to the BOG dehydrogenation system disclosed by the utility model, the purpose of hydrogen separation is achieved by adopting reversible reaction of hydrogen storage alloy and hydrogen adsorption, the process is carried out under the conditions of normal temperature and low pressure, and compared with the existing methods of low-temperature separation, high-pressure adsorption and the like, the energy consumption is greatly reduced, and energy conservation and emission reduction are facilitated.

The invention relates to the technical field of medical instruments, and discloses a medical X-ray protection device which comprises a base, a frame arranged at the top of the base, two sliding rods arranged on the front face of the frame, two shielding plates arranged on the outer sides of the sliding rods and fixing assemblies arranged on the back faces of the shielding plates. The fixing assembly specifically comprises a sliding base arranged on the back face of the shielding plate and a sliding block arranged in the sliding base. According to the medical X-ray protection device, by arranging the adjusting assembly, when the position of the shielding plate needs to be adjusted, the control plate is pressed downwards, so that the shielding plate can be freely moved to slide on the sliding rod, the control plate is loosened after the shielding plate moves to the corresponding position, the adsorption pad is tightly adsorbed to the outer side of the sliding rod, the shielding plate cannot move any more, and positioning is completed; according to the method, control is convenient, rapid adjustment can be achieved, one-hand operation can be achieved, meanwhile, a negative pressure adsorption method is adopted, and the effective fixing effect can be maintained all the time before the communicating groove is aged.

The application provides a preparation method of a zeolite adsorbent, comprising the following steps: a) treating a zeolite in an oxalic acid solution, and drying to obtain a zeolite precursor; b) treating the zeolite precursor obtained in the step a) in an ammonium fluoride solution, and drying to obtain a zeolite adsorbent. The application also provides a zeolite adsorbent and an ammonia adsorption method. The preparation method provided by the application is mild and controllable in structure adjustment, and the zeolite is post-treated to make the zeolite framework selectively rearrange or slightly adjust in local areas, so that mesoporous channels with appropriate sizes and good connectivity are generated. The preparation method provided by the application can introduce mesopores while maintaining the integrity of the microporous framework structure as much as possible, avoids damage to the micropores or collapse of the framework, and has the characteristics of simple process route, wide range of control parameters, good repeatability and suitability for large-scale preparation.

The invention discloses a nitrate-containing waste liquid treatment method, which comprises: (1) waste acid treatment: diluting waste acid in a neutralization reaction kettle, adding ammonia water while stirring, controlling the temperature to be 70-95 DEG C, continuously adding ammonia water to adjust the pH value of the solution to be 7.5-10.0 after the neutralization is completed, and carrying out stirring distillation to obtain an ammonium sulfate nitrate aqueous solution or an ammonium sulfate nitrate crystal; (2) wastewater treatment: 1) wastewater steam stripping: transferring nitrate wastewater into a steam stripping kettle, adding a pH regulator to regulate the pH value to be 10-13, heating the steam stripping kettle to a boiling state by using steam, distilling, condensing and recovering nitrate in the wastewater; and 2) oxidation treatment: after steam stripping is finished, hydrogen peroxide is added into the steam stripping kettle in a boiling state, stirring reaction is performed, and the reacted wastewater can be discharged after reaching the standard. Compared with a traditional Fenton method and an activated carbon adsorption method, the method has the advantages that secondary pollutants Fe (OH) 3 generated by treatment and saturated activated carbon after adsorption can be avoided, harsh reaction conditions such as light, electricity and microwaves can be avoided, the operation cost is reduced, the method is safe, environment-friendly and free of secondary pollution, the nitrate removal rate can reach 100%, and the method is suitable for industrial production. The COD (Chemical Oxygen Demand) of the treated wastewater is less than 100mg / L, and the wastewater can reach the direct discharge standard.

The application belongs to the technical field of solid waste resource utilization, and specifically discloses a method and device for preparing silicon-calcium aggregate, sulfuric acid and CO2 by phosphogypsum oxygen-rich high-temperature decomposition. The method uses the adsorption method to obtain pure nitrogen products and oxygen-rich combustion-supporting gas, and provides different reaction temperatures and reaction atmospheres for different reaction stages of the rotary kiln reactor through the multi-point combustion mode, thereby ensuring the controllable high-temperature environment and atmosphere in the kiln. The method improves the combustion efficiency, greatly reduces the amount of flue gas after decomposition, effectively improves the concentration of SO2 in the flue gas and the efficiency of the subsequent sulfuric acid preparation system, and realizes CO2 emission reduction and resource utilization by using the CO2-rich tail gas of the sulfuric acid preparation system for adsorption recovery. The application also provides a device for realizing the method, which combines gas adsorption, oxygen-rich combustion and rotary kiln multi-point combustion equipment, thereby ensuring the effective realization of the process.

The application provides a preparation method of a two-dimensional layered silicate mineral film treated by a reducing modifier, which comprises the following steps: firstly, organic modification of a two-dimensional layered silicate mineral by a reducing ionic liquid; then, loading of the reducing modifier into the interlayer of the two-dimensional layered silicate mineral; and finally, construction of a two-dimensional channel by vacuum filtration to prepare a film with a thickness of 5-20 microns. The two-dimensional layered silicate mineral film obtained by the method has a large surface area and can effectively treat heavy metal Cr(VI). The construction of the two-dimensional channel provides a limited space for the reducing modifier to prevent oxidation and provides abundant sites for the oxidation-reduction reaction in the nanopore channel, and solves the problems of desorption difficulty and secondary pollution caused by the traditional adsorption method for treating heavy metals.

To provide a hydrocarbon adsorbent having a high hydrocarbon desorption start temperature, or to provide a hydrocarbon adsorption method that uses the hydrocarbon adsorbent.SOLUTION: Used is a hydrocarbon adsorbent containing an alkali metal and zeolite having a ring structure made up of 10 or more rings. The content of the alkali metal is 1 to 40 mass% with respect to 100 mass% of the hydrocarbon adsorbent, the content of the zeolite having the ring structure made up of 10 or more rings is 99 to 60 mass% with respect to 100 mass% of the hydrocarbon adsorbent, and at least a portion of the alkali metal is in an ion exchangeable state.SELECTED DRAWING: Figure 1

The invention discloses an adsorption device and a workpiece adsorption method, and relates to the technical field of workpiece adsorption. The adsorption device comprises: an adsorption member; a plurality of gas path channels; m negative pressure generating units; the air path switching module can be used for selectively communicating any air path channel with the air suction port of the corresponding negative pressure generation unit or communicating with the atmosphere or communicating with the closed pipeline; the limit negative pressure absolute value of the Nth negative pressure generating unit is smaller than that of the (N + 1) th negative pressure generating unit; when the air suction port of the Pth negative pressure generation unit is communicated with the air channel, the air channel corresponding to the (P-1) th negative pressure generation unit is communicated with the closed pipeline; and when the air channel corresponding to the (P-1) th negative pressure generation unit is communicated with the closed pipeline, the (P-1) th negative pressure generation unit stops working. The adsorption device is used for avoiding the heat accumulation phenomenon of the negative pressure generation unit on the premise that the adsorption pressure is guaranteed, the service life of the negative pressure generation unit is prolonged, and meanwhile the applicability of the adsorption device is improved.

The application discloses a kind of metal organic framework-based biological trickling filter fillings, including soluble metal salt, organic ligand and binder.It also includes preparation method, including soluble metal salt is mixed with organic ligand in solvent, heating reaction, obtain metal organic framework material;Metal organic framework material is mixed with binder granulation, obtain metal organic framework-based biological trickling filter fillings.The preparation method of the biological trickling filter fillings is simple, structural performance is stable, with great specific surface area and strong biological adsorption capacity, sulfur-containing malodorous waste gas has very good adsorption effect at the same time, degradation efficiency is higher, can effectively make adsorption method and biological method be combined, and play the advantages of two, compared with prior art, the removal rate of hydrogen sulfide, organic sulfide, benzene series in sulfur-containing malodorous waste gas can reach 99.5% in the application.

The scheme discloses a heavy metal copper adsorption method in the technical field of heavy metal adsorption, which comprises the following steps: using a modified adsorbent to adsorb heavy metal copper; and the preparation of the modified adsorbent comprises the following steps: alkalinization, oxidation, modification, crosslinking and exchange of distiller's grains to increase groups. The modified adsorbent prepared by the method has the advantages of high adsorption capacity, high adsorption efficiency and strong reusability.

The invention discloses an adsorption device, an adsorption method and a maintenance method of the adsorption device, and relates to the technical field of adsorption, the adsorption device comprises an adsorption execution unit, an adsorption control unit and an adsorption management and control unit, and the adsorption execution unit comprises an adsorption part and a pressure detection part which are connected; the adsorption control unit comprises an industrial control part, a control part, a data acquisition module and a negative pressure adjusting module which are connected with one another; the adsorption management and control unit is connected with the industrial control and comprises a process parameter library of the workpiece; when the adsorption part adsorbs a workpiece, the pressure detection part detects adsorption pressure data of the adsorption part, the data acquisition module acquires the adsorption pressure data of the adsorption part and transmits the adsorption pressure data to the control part, and the industrial control part calls process parameters and transmits the process parameters to the control part; the control piece controls the negative pressure adjusting module to adjust the adsorption pressure of the adsorption piece according to the adsorption pressure data of the adsorption piece and the process parameters of the workpiece; therefore, the situation that the workpieces are difficult to release due to too large adsorption pressure and are traced or damaged is avoided, and the workpieces are prevented from falling off and being damaged due to too small adsorption pressure.

The utility model discloses a special equipment installation tool, and belongs to the technical field of special installation tools. A special equipment installation tool comprises an installation box and further comprises a first installation block fixedly installed on the installation box, an installation rod is installed on the first installation block in a sliding mode, a groove hole is formed in the end of the installation rod, and a suction cup is fixedly connected to the installation rod; the negative pressure assembly is arranged in the mounting box, and the air suction end of the negative pressure assembly is communicated with the slotted hole through a connecting assembly; the trepanning assembly is arranged on the mounting box; suction force generated by the negative pressure assembly is utilized, the drill bit is tightly adsorbed on the smooth metal surface of the special equipment through the suction cup, the adsorption mode is firm and reliable, deviation of the drill bit in the punching process can be effectively limited, it is guaranteed that the drill bit is perpendicular to the surface of the equipment, and meanwhile the drilling efficiency is improved. And due to negative pressure adsorption, the sliding problem caused by the smooth surface of the equipment is also reduced, so that high-precision and stable drilling operation is realized.

The invention discloses an environment-friendly sewage treatment device which is characterized in that a sewage tank, a mixing tank, a filter pressing device, an oxidation disinfection tank, a catalytic reaction tank, an adsorption tank and a water return tank are arranged in a shell from top to bottom, wastewater in the sewage tank is filtered by a barrel-shaped sand filter screen and then enters the mixing tank to be mixed with liquid medicine sprayed by a spraying device, and then the wastewater enters the filter pressing device; water is separated from precipitated impurities, then enters the oxidation disinfection tank to be disinfected by ozone, then enters the catalytic reaction tank, is added with a catalyst to accelerate an ozone oxidation disinfection reaction, and then enters the adsorption tank to be subjected to final adsorption treatment, so that wastewater treatment is completed; organic pollutants are converted into harmless gas products (CO2), liquid products (water) and solid sludge rich in organic matters; and carrying out solid-liquid separation on the redundant sludge in the filter pressing device under the filter pressing action, and sterilizing and killing bacteria and viruses by using ozone or chlorine. Finally, residual pollutants in water are removed through an activated carbon adsorption method and the like, and then treated water is fed into a reclaimed water channel to be used as circulating water.

Provided are: particles of a recycled polycarbonate resin which are characterized by having an oligomer content of 1.4% or less and a molecular weight distribution (Mw / Mn) of 2.3 or less, both determined by gel permeation chromatography (GPC); or particles of a recycled polycarbonate resin which are characterized by having an oligomer content of 0.8% or less and a molecular weight distribution (Mw / Mn) of 2.3 or less, both determined by gel permeation chromatography (GPC), and having a specific surface area of 0.05-1.2 g / cm3 as determined by a gas adsorption method. The particles of a recycled polycarbonate resin have a feature of having excellent impact resistance, heat resistance (hue after molding), and transparency.

The application provides an organic matter desorption and adsorption characteristic measuring device and an automatic calibration method thereof, and belongs to the technical field of measurement. The organic matter desorption and adsorption characteristic measuring device has a simulation calibration device. The simulation calibration device has an environment cabin. The environment cabin is additionally provided with a control unit, a temperature adjusting unit, a temperature sensor, a humidity adjusting unit, a humidity sensor, an air pressure adjusting unit, an air pressure sensor, a communication unit, a sample bearing unit and a weighing unit. The sample bearing unit is composed of a stator and a rotor. The stator is a concave disc with a notch. The rotor is a toothed gear wheel. The use method of the device mainly includes the following steps: a parameter setting stage, a pre-balancing stage, a tare weight removing stage, a reference weighing stage, a measuring stage, a dynamic balancing stage, a cycle desorption stage, a cycle adsorption stage and a calibration stage. The problems that the current organic matter desorption and adsorption method is complicated to operate and has a large error can be solved.

This invention belongs to the technical field of gas purification equipment, specifically relating to a molecular sieve adsorption tower for CO2 adsorption. The tower includes a tower body, within which, from the inside out, are arranged a central air channel, a molecular sieve layer, an alumina layer, and an outer air channel. A pressing mechanism is provided at the top of the tower body for pressing the molecular sieve layer and the alumina layer respectively. The pressing mechanism includes a drive plate that can move up and down along the top of the tower body. Below the drive plate is an inner pressing structure for pressing the molecular sieve layer, and outside the inner pressing structure is an outer pressing structure for pressing the alumina layer. As the drive plate descends, the inner and outer pressing structures simultaneously press the molecular sieve layer and the alumina layer respectively. This invention provides a molecular sieve adsorption tower for CO2 adsorption capable of separately pressing the sedimentation of the alumina layer and the molecular sieve layer.

The application discloses a preparation method of a chromium-containing geopolymer material and application of the chromium-containing geopolymer material in a steelmaking process, and belongs to the field of geopolymer materials. The preparation of the chromium-containing geopolymer material mainly utilizes an adsorption method and a direct incorporation method to add chromium ions into the geopolymer material. The chromium-containing geopolymer material has wide raw material sources, simple preparation process and low production cost. The chromium-containing geopolymer material, a reducing agent and slag-making material are added before molten steel enters refining, the chromium element in the chromium-containing geopolymer material is reduced into metallic chromium into molten steel by the reducing agent in the process of a steelmaking converter, complete or partial replacement of ferrochrome is realized, and the smelting cost of the chromium-containing steel is reduced. Meanwhile, the application can also realize large-scale treatment of chromium-containing wastewater, is an adsorbent with excellent performance, realizes high added value utilization of solid waste resources, and greatly reduces environmental pollution caused by ferrochrome, and the chromium-containing geopolymer material prepared by the method has great advantages and application prospects in the steelmaking process.

The utility model provides a biomass synthesis gas separation device, which relates to the technical field of synthesis gas separation, and comprises a refrigeration module, a separation module and a gas supply module, the separation module comprises a separation tank, a separation outlet arranged on the separation tank, and a heat exchange coil and a streaming structure arranged in the separation tank, due to the arrangement of the streaming structure, a zigzag channel is formed in the separation tank; the gas supply module comprises an inflow pipe, one end of the zigzag channel is connected with the inflow pipe, the other end of the zigzag channel is connected with the separation outlet, and the heat exchange coil and the zigzag channel are arranged in a penetrating mode. Separation of biomass synthesis gas is achieved through different liquefaction temperatures of all gas components, the separation effect is more sufficient compared with a membrane separation method and an adsorption method, carbon monoxide, carbon dioxide and hydrogen obtained after separation are independently stored, convenient conditions are provided for subsequent chemical reaction synthesis of alcohol substances, and the reaction efficiency of the alcohol substances is also improved.

Disclosed is a ceramic moisture absorbent which comprises a plurality of fibrous particles that are formed of a ceramic which contains titanium, potassium, and oxygen. The plurality of fibrous particles form a plurality of pores between each other. The plurality of fibrous particles have specific pores that have a pore diameter of 10-80 nm inclusive as measured by a gas adsorption method. The total pore volume of the specific pores is 1 cm3 / g or more per unit mass of the ceramic moisture absorbent.

The invention discloses a tetraalkyl ammonium hydroxide wastewater treatment method based on an adsorption method, and relates to the technical field of wastewater treatment. According to the technical scheme, the electrode group is arranged in the middle flow channel, when the first fluid is input, the electrode group is electrified to generate an electric field, so that the electrode group adsorbs tetraalkylammonium ions and hydroxyl ions in the first fluid, and the obtained first treatment fluid is discharged, so that efficient treatment of the tetraalkylammonium hydroxide wastewater is completed; when the adsorption of the electrode group is saturated, a second fluid is input into the middle flow channel, and the electrode group is reversely electrified, so that the tetraalkylammonium ions and the hydroxyl ions adsorbed on the electrode group are released to the second fluid again, and a second treatment liquid is discharged, so that the recycling of the tetraalkylammonium hydroxide solution is realized, and the recycling of the tetraalkylammonium hydroxide solution is realized. The separation of the first treatment liquid and the tetraalkyl ammonium hydroxide in the tetraalkyl ammonium hydroxide wastewater is realized by regulating and controlling the electric field of the electrode group.

The invention discloses a method for determining activity of host cell proteolytic enzyme of hydrolyzed polysorbate, and belongs to the technical field of biological detection. The method comprises the following steps: adding a solid-phase reaction substrate (containing a polysorbate analogue) and a to-be-detected sample into a buffer solution to react, removing the solid-phase reaction substrate by utilizing a magnetic adsorption method after the reaction is finished, and carrying out fluorescent quantitative PCR amplification reaction on the residual reaction solution to determine the content of free DNA in the reaction solution. Host cell proteolytic enzyme activity to hydrolyze polysorbate is determined by free DNA content. The method effectively solves the problems of insufficient sensitivity, complex operation and unstable result in the traditional detection method, obviously improves the detection precision and the experimental operation efficiency, enhances the quality monitoring in the drug research and development stage and the safety guarantee of the final product, improves the quality control level of the protein biological drugs, and has a wide application prospect. The effectiveness and the safety of the protein biological medicine in clinical medication are ensured.

The utility model belongs to the technical field of mercury removal of wastewater, and particularly relates to a mercury removal system suitable for flue gas washing wastewater, which comprises a PH (potential of hydrogen) adjusting area, a mercury removal reaction area, a coagulation area, a flocculation area, a settling area, a sand filter tank, a carbon filter tank, a resin tank and a wastewater inlet arranged on the PH adjusting area. The settling zone, the sand filter tank, the carbon filter tank and the resin tank are connected through pipelines, a chemical precipitation method, an adsorption method and an ion exchange method are integrated into one system, most of inorganic mercury and elemental mercury are removed through a sulfide precipitation method, then organic mercury is removed through an activated carbon adsorption process, and the mercury removal efficiency is improved. Finally, residual inorganic mercury is removed through the principle of ion exchange with functional groups in the mercury removal resin, both organic mercury and inorganic mercury in the wastewater can be effectively removed, and the total mercury concentration in effluent is stably lower than 5 micrograms per liter. The system is small in occupied area, convenient to install, long in service life and low in operation cost.

To provide a method for adsorbing dropped protein to a base material having a titanium oxide layer on the surface at a high rate.SOLUTION: A method for adsorbing a protein to a substrate having a titanium oxide layer on a surface thereof, the method comprising: a protein solution dropping step of dropping a protein solution containing a protein onto the titanium oxide layer of the substrate; and a protein adsorption step of adsorbing the protein contained in the dropped protein solution onto the titanium oxide layer, wherein the protein solution contains 0.1 mg to 5 mg / mL of bovine serum albumin, and the substrate onto which the protein solution has been dropped is held for 85 minutes to 480 minutes in the protein adsorption step.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of environmental protection, and particularly relates to a multi-pollutant cooperative control method for ultralow emission of solid waste incineration flue gas. The solid waste incineration flue gas is deacidified by a semi-dry method, and then enters a biological absorption device to remove acidic pollutants such as sulfur dioxide and hydrogen chloride in the flue gas by adopting biological washing absorption, and then enters a thermophilic composite catalytic biological purification device to carry out synergistic pollution reduction on pollutants such as nitrogen oxides, heavy metals and dioxin in the flue gas; meanwhile, a wastewater treatment recycling system with a biochemical system is arranged, so that ultralow emission of flue gas is realized; the method can replace medium and low temperature SCR denitration, activated carbon jet adsorption and wet deacidification, and solves the problems that in the existing flue gas multi-pollutant synergistic pollution reduction technology, the low temperature SCR denitration is unstable, the operation cost is high, the adsorption method is easy to saturate, the adsorption and purification efficiency is low, secondary pollution is easy to generate and the like; the device is suitable for deep purification treatment of flue gas pollutants in waste incineration, sludge incineration, hazardous waste incineration and other solid waste incineration.

The present application belongs to the field of light industry grease, and discloses a preparation method of diglyceride. The present application carries out pretreatment on the immobilized enzyme carrier, mixes free lipase and glycerol according to a certain proportion, adds the immobilized carrier into the mixed solution of the lipase and glycerol, and carries out immobilization through the adsorption method, so that the immobilized enzyme which has catalytic characteristics and can be used as a reaction substrate is prepared. The obtained immobilized enzyme can be used for the continuous production of diglyceride in a packed bed reactor. Compared with the traditional enzyme method for catalyzing glycerolysis reaction to prepare diglyceride, the immobilized enzyme obtained by the present application not only has catalytic effect, but also has enough glycerol adsorbed on the immobilized enzyme which can be used as a substrate to carry out glycerolysis reaction, so that the reaction efficiency is improved. Not only the problems of difficult recovery and poor reusability of free enzyme are solved, but also the problem of difficult continuous production due to the large viscosity of glycerol in production is solved.

The invention discloses an automatic box girder steel formwork rust removal system based on a laser technology and a using method. The system comprises a formwork support, a walking track, a door-type support, a laser generator, an air compressor, dust removal equipment and a control system. The gate-type support is located on walking rails on the two sides of the formwork support through walking wheels at the bottom and can move in the longitudinal direction of the formwork. A sliding table capable of moving transversely is installed on the door-type support, a sealing cover integrating a laser emitting end, a high-pressure gas nozzle and a dust removal suction port is hung at the bottom of the sliding table, and the sealing cover and the surface of the formwork form a closed operation cavity through a bottom flexible sealing edge. The system is further provided with a wall-climbing robot capable of moving and working on the vertical face of the formwork and a complex area, and the wall-climbing robot carries an integrated working head and is fixed in a magnetic adsorption or negative pressure adsorption mode. Through cooperative operation of the door-type support and the wall-climbing robot, efficient, high-quality and pollution-free automatic rust removal of the whole surface of the large box girder steel formwork is achieved, and the defects that a traditional method is low in efficiency, many in dead angle and large in pollution are overcome.

The invention discloses a petroleum-contaminated soil remediation agent based on synergism of a fixed microbial inoculum and free bacteria and application of the petroleum-contaminated soil remediation agent, and belongs to the technical field of soil pollution control and treatment. The petroleum-contaminated soil remediation agent is prepared from an immobilized microbial agent prepared by immobilizing stenotrophomonas by adopting rape straw biochar and free pseudomonas, wherein the immobilized microbial agent is prepared by immobilizing stenotrophomonas by adopting rape straw biochar; wherein both the stenotrophomonas and the pseudomonas are preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation numbers of the stenotrophomonas and the pseudomonas are respectively CGMCC No.34532 and CGMCC No.34533. According to the method, the petroleum-contaminated soil is repaired by adopting a technology of combining the immobilized microbial inoculum and the free degrading bacteria for the first time, so that the advantages of the immobilized microbial inoculum are reserved, and the degrading effect is improved through the synergistic effect of the immobilized microbial inoculum and the free bacteria. In addition, an adsorption method is used for immobilization, operation is simple, chemical reagents such as an embedding agent and a cross-linking agent are not added, and secondary pollution is avoided.

An electrostatic chuck system is characterized by comprising: an electrostatic chuck for adsorbing an object to be adsorbed, the electrostatic chuck being provided with at least one cutout portion penetrating from an adsorption surface on which the object to be adsorbed is adsorbed to a surface on the opposite side; an image capturing member capable of capturing an image of the object to be adsorbed through the cutout portion; and a determination means for determining the degree of adsorption between the electrostatic chuck and the object to be adsorbed on the basis of the image of the object to be adsorbed captured by the imaging means.

The invention provides a soil improvement material with microorganisms immobilized by hydrothermal carbon as well as a preparation method and application of the soil improvement material, and relates to the technical field of soil improvement. The soil improvement material with the microorganisms immobilized by the hydrothermal carbon is prepared by mixing the hydrothermal carbon and a microbial liquid, the preparation method comprises the following steps: drying a material for preparing the hydrothermal carbon, crushing the dried material into powder, and carbonizing the material under specific process conditions to obtain the hydrothermal carbon; the hydrothermal carbon is mixed with a microbial liquid, and microorganisms are adsorbed on the hydrothermal carbon under specific conditions, so that the soil improvement material disclosed by the invention is obtained. The target microorganisms are fixed on the hydrothermal carbon by adopting a physical adsorption method, the finally prepared material can improve soil with continuous cropping obstacles, survival and release of the microorganisms entering the soil environment are facilitated, occurrence of plant diseases is slowed down, and growth and development of plants are promoted.