935 results about "Purification methods" patented technology

The invention discloses an extraction and purification method and application of plant-derived exosome-like nanoparticles, and relates to the technical field of plant exosome preparation. The extraction and purification method comprises the following steps: washing fresh ginseng, airing for later use, adding a proper amount of buffer solution, mixing, breaking walls, filtering, centrifuging filtrate to obtain supernate, carrying out ultracentrifugation on the supernate to obtain ginseng exosome nano-particle precipitates, resuspending the precipitates, respectively adding pure water sucrose solutions with different concentrations, and carrying out ultracentrifugation to obtain ginseng exosome nano-particles; and re-suspending the target strip, and carrying out ultracentrifugation to remove redundant cane sugar so as to obtain the purified ginseng exosome-like nano-particles. The ginseng exosome-like nano-particles disclosed by the invention have a remarkable effect when being applied to cosmetics or medicines with skin photoaging resistance, skin oxidation resistance and wrinkle resistance. In an anti-UVB (Ultraviolet B) induced cell injury experiment, the ginseng exosome-like nano-particles have an excellent anti-UVB induced cell injury effect.

The invention relates to a method for purifying a monomer bis (2-hydroxyethyl) terephthalate (BHET) obtained by depolymerizing waste polyester through ethylene glycol (EG), and belongs to the technical field of polyester recycling. The BHET microwave radiation induced film evaporation separation and molecular distillation refining continuous process provided by the invention solves the problems of long process flow, poor continuity, more side reactions and low purity and yield in the direct separation and refining process of BHET in alcoholysis liquid based on a gas-liquid equilibrium separation method at present. The whole technological parameter requirement is mild, the process is short, continuity is good, the BHET purity of the product is larger than or equal to 99.0 wt%, the hue is good, and the BHET yield is larger than or equal to 80.0%. And meanwhile, the method has the advantages that EG is conveniently recycled in a system, the production process is cleaner and more environment-friendly, and the comprehensive efficiency advantage is obvious.

The invention discloses a water environment pollution water treatment and purification device and a purification method thereof, and belongs to the technical field of water treatment, the water environment pollution water treatment and purification device comprises a water inlet tank, a treatment tank is fixedly connected to one side of the water inlet tank, a water outlet tank is fixedly connected to one side of the treatment tank, and water pumps are fixedly connected to the water inlet tank and the water outlet tank; the input end of the water pump is fixedly connected with a water pumping pipe. According to the conveying device, the first motor drives the transmission wheels to rotate, the transmission wheels drive the belt and the other transmission wheel to rotate synchronously, then the connecting shaft rotates, the connecting shaft drives the reciprocating lead screw to move in the fixing plate, the reciprocating lead screw pushes the threaded cap to move, the threaded cap drives the transverse plate to move synchronously, and then the conveying cylinder moves stably in the horizontal direction. Chemical agents can be evenly distributed in the treatment box, the chemical agents and sewage are fully mixed through continuous stirring of the stirring blades, the purification effect is achieved, and finally treated water is sucked into the water outlet box through the water pump and discharged through the water outlet valve.

The invention discloses a health-care sojourn environment air quality monitoring and purifying method and system based on the Internet of Things, and the method comprises the steps: dividing a dynamic microenvironment region, deploying a multi-mode sensing terminal, collecting indexes, and uploading the indexes to a cloud end; establishing a personalized dynamic standard according to the human body biological rhythm characteristics; generating an initial evaluation value through an environment-health coupling evaluation model, and judging whether the initial evaluation value deviates from a standard or not through a dynamic threshold deviation detection model; if so, predicting an air quality trend by using a space-time multi-dimensional trend deduction model, and generating a target evaluation value; and inputting the regional space purification model to generate a purification strategy, and linking the purification equipment to realize precise targeted purification. According to the method, the limitation of traditional fixed indexes is broken through, the upgrading from environmental monitoring to health response is realized, the health risk can be accurately evaluated, the trend can be predicted, the purification parameters are dynamically adjusted, a monitoring, analysis, prediction and purification closed loop is formed, the air quality regulation and control accuracy and energy efficiency are improved, and an efficient scheme is provided for healthy and nourishment of sojourn.

The invention relates to a purification device and a high-purity aluminum purification method using the purification device. The purification device comprises a smelting chamber shell, a smelting chamber inner cavity, a smelting container arranged at the bottom of the smelting chamber inner cavity, a magnetic field module and a directional solidification module, wherein the magnetic field module and the directional solidification module are arranged in the gap position between the smelting chamber shell and the smelting chamber inner cavity. The magnetic field module comprises a first magnetic field and a second magnetic field; the first magnetic field comprises a centrifugal magnetic field area arranged on the periphery of the side wall of an inner cavity of the smelting chamber. The second magnetic field comprises axial magnetic field areas symmetrically arranged between the top of the inner cavity of the smelting chamber and the bottom of the inner cavity of the smelting chamber; the directional solidification module comprises a cooling part arranged at the bottom of the smelting container and a heating part arranged along the peripheral side of the top of the smelting chamber shell; according to the purification device and the purification method using the purification device, the removal rate of heavy impurities is preferably as high as 85% or above, the removal rate of light impurities is preferably as high as 75% or above, and continuous production of 6N high-purity aluminum is achieved.

The invention provides a continuous purification method of crude acetonitrile, and belongs to the field of acetonitrile purification. The continuous purification method of the crude acetonitrile comprises the following steps: rectification light component removal, membrane separation impurity removal, adsorption impurity removal and rectification purification. According to the continuous purification method of the crude acetonitrile, continuous purification of the crude acetonitrile can be realized, and meanwhile, the problems that new impurities are introduced by side reactions, the rectification efficiency and the rectification stability are influenced by treated products and the device is influenced by over-high alkalinity of the treated secondary rectification liquid due to the fact that sodium hydroxide and formaldehyde are adopted to treat the rectification liquid are avoided; the acetonitrile product with the purity meeting the requirement is prepared by continuously purifying the crude acetonitrile.

The invention relates to the technical field of constructional engineering, and discloses an intelligent ventilation and purification method and system for constructional engineering, and the method comprises the steps: 1, determining the concentration of pollutants in a building based on real-time air quality data, and calculating the required ventilation quantity meeting a preset standard; secondly, the fresh air introduction proportion is adjusted according to the indoor and outdoor temperature and humidity difference value so as to optimize energy consumption and thermal comfort balance; 3, according to the personnel distribution density, the local area air supply intensity is set, and the air circulation uniformity is ensured; fourthly, the system operation mode is regulated and controlled based on the working state of the air purification equipment, so that energy consumption is reduced, and the service life of the equipment is prolonged; the fresh air introduction proportion is intelligently adjusted by comparing indoor and outdoor temperature and humidity differences. For example, when the outdoor temperature and humidity are close to the indoor comfortable interval, the fresh air volume is increased to utilize natural cold and heat sources; when the outdoor environment is extreme, the fresh air volume is reduced, the heat recovery device is started, the air conditioner load is reduced, and energy waste is reduced.

The invention relates to the technical field of smoke purification, in particular to an industrial smoke purification device and a purification method. The invention aims to solve the problem that the existing smoke treatment equipment has a poor treatment effect on harmful substances. According to the technical scheme, the industrial smoke purification device comprises a purification cylinder, an air inlet pipe is fixedly connected to the right side of the purification cylinder in a communicating mode, an exhaust port is formed in the top of the purification cylinder, a first liquid passing port and a second liquid passing port are formed in the left side of the purification cylinder, and the first partition plate is fixedly connected into the purification cylinder. By arranging the atomization unit, waste gas flows upwards in the gap between the flow dividing pipe and the extrusion plug through air pressure and makes contact with absorption liquid through the ventilation plate, due to the fact that the gap between the flow dividing pipe and the extrusion plug is small, the gas can flow at a high speed when the waste gas passes through the gap, and the absorption liquid is attracted to enter the flow dividing pipe through the flow guiding pipe; waste gas collides with the absorption liquid to generate fine bubbles, and the waste gas absorption efficiency of the absorption liquid is improved.

The invention discloses a purification method for removing quartz inclusion, which comprises the following steps: calcining a quartz sand raw material at high temperature for a certain time, then taking out and quickly putting into cold water for cold quenching; dehydrating quartz sand, feeding into a microwave reactor, heating to a set temperature, and keeping for a period of time; after the reaction is finished, cleaning the quartz sand with ultrapure water; filling the quartz sand into a high-temperature and high-pressure reactor, introducing supercritical carbon dioxide and hydrogen fluoride mixed gas, and keeping the temperature and the pressure for a period of time; and after the reaction is finished, discharging gas to obtain the high-purity quartz. Through two-stage heat treatment, a channel between gas-liquid inclusions in quartz particles and the outside can be efficiently opened, and meanwhile, the supercritical method ensures that impurities in the inclusions can be effectively dissolved out; the treatment time is short, the required temperature is low, the acid consumption is less than 10%, and the method has the advantages of high efficiency and low cost.

The invention discloses a tritiated waste ash purification method and system based on cooperation of multistage adsorption and low-temperature distillation. The method comprises the following steps: S1, sorting treatment; s2, acid leaching treatment; the waste ash to be treated is subjected to acid leaching treatment, and acid leaching slurry is obtained; s3, carrying out separation treatment; carrying out separation treatment on the acid leaching slurry to obtain acid leaching residues and leachate; s4, adsorption treatment; carrying out adsorption treatment on the leachate to obtain penetrating liquid; s5, catalytic treatment; performing catalytic treatment on the penetrating liquid to obtain tritiated water and catalytic treatment tail gas; and S6, carrying out adsorption treatment on the catalytic treatment tail gas. According to the tritiated waste ash purification method, multi-stage adsorption and low-temperature distillation cooperative treatment is adopted, and the tritiated waste ash purification efficiency is greatly improved. According to the tritiated waste ash purification system, pretreatment, adsorption-catalysis and rectification concentration unit independent packaging are achieved through modular design, and rapid disassembly and assembly and multi-line parallel treatment are supported.

The invention discloses a boron trifluoride purification device and a boron trifluoride purification method, and relates to the technical field of boron trifluoride purification. The boron trifluoride purification device comprises an adsorption tower, the side face of the adsorption tower is connected with a material mixing tower through a pipeline, the side face of the material mixing tower is connected with a light component removal tower through a pipeline, and the side face of the light component removal tower is connected with a heavy component removal tower through a pipeline. The side surfaces of the light component removal tower and the heavy component removal tower are connected with a three-waste treatment bin through pipelines. The boron trifluoride purification method comprises the steps that after gas is introduced into the mixing tower, a servo motor is started, and a rotating cylinder, a rotating disc, a torsional spring, an extrusion block, a fixing block, a hydraulic device, a first stress rod, an arc-shaped rod, a first spring, a rotating block and a mixing plate are matched, so that the residence time of the gas in the mixing tower can be prolonged when needed, and the mixing effect of the device is improved.

The invention discloses a water purification method and system for urban and rural integrated water supply, and relates to the technical field of water treatment. The water purification method for urban and rural integrated water supply solves the problems that an existing system is poor in process adaptability, inaccurate in control and low in energy efficiency. Water quality and pipe network data are collected in real time through a sensor; an adjustable folded plate flocculation device is adopted, and the flocculation effect is optimized in combination with turbidity dynamic adjustment; constructing a multi-parameter dosing model, and dynamically dosing according to flow, turbidity and the like; the LSTM neural network is used for predicting the state of a filter layer, and air-water pulse backwashing is intelligently controlled; and adding a composite flocculant to enhance pollutant removal, and realizing water quality prediction and system collaborative optimization by virtue of a random forest algorithm and a digital twin platform. The flocculation efficiency is improved, dosing is accurately controlled, energy consumption and water resource waste are reduced, and an efficient and stable scheme is provided for urban and rural water supply.

The invention belongs to the field of air purification, and relates to module combined type comprehensive purification equipment and a purification method thereof.The module combined type comprehensive purification equipment is characterized in that a first gas sensor is arranged in a harmful gas collecting header pipe, and a second gas sensor is arranged in a pipeline between an exhaust port of a module combined type washing tower and a third electric control three-way valve; the first gas sensor and the second gas sensor are electrically connected with the ARM processor, and the ARM processor controls opening and closing of the module combined type washing tower, the mixing atomizing chamber and the module combined type adsorption box and controls opening and closing of the first electric control three-way valve, the second electric control three-way valve and the third electric control three-way valve. According to the method, the comprehensive harmful gas treatment sequence is as follows: firstly, acidic or alkaline dirt is removed, and then, activated carbon particle filtration and adsorption are performed. According to the invention, diversified, staged and complicated mixed harmful waste gas can be automatically and effectively purified.

The invention relates to the technical field of waste gas treatment, in particular to an atmospheric pollution waste gas purification method and system, and the purification effect is improved through concentration sequence analysis and gas-liquid efficiency fitting, dynamic adjustment of a liquid amount strategy, backtracking of a residual concentration generation evaluation window and matching of a thermal response material. According to the invention, through linkage analysis of pollutant concentration data at the outlet of the spray tower and physical parameters such as molecular polarity, spray liquid viscosity and the like, a gas-liquid contact efficiency offset evaluation mechanism based on a time sequence is established, and the ability of sensing the dynamic change of the purification performance is effectively improved. The concentration change trend is refined, so that different pollution fluctuation states are accurately divided, a multi-dimensional slope judgment method is introduced to realize classified induction of the contact efficiency trend, and scientific support is provided for subsequent liquid flow regulation and control. According to the gas-liquid efficiency change characteristics under different fluctuation sections, a dynamic adaptation strategy is set for the liquid amount adjustment direction and amplitude, and regulation and control logic highly coupled with the pollution trend is formed.

The invention discloses a method for separating and purifying gamma-aminobutyric acid from whole cells or enzymatic conversion liquid. The method comprises the following steps: removing thalli and large-particle impurities, denaturating, decolorizing and removing impurities, crystallizing for the first time, washing for the first time, crystallizing for the second time, washing for the second time and drying. According to the present invention, the thermal denaturation of the protein, the active carbon decoloration and the flocculation impurity removal are integrated, such that the solid-liquid separation frequency is reduced, the problems of difficult filtration and easy leakage of the powdered active carbon are solved, and the purity and the yield of the gamma-aminobutyric acid are significantly improved. In the whole separation and purification process, the pH value is not adjusted, the cost is saved, impurities are reduced, and the ion removal process is omitted. And collecting the primary crystallization mother liquor and washing liquor for secondary crystallization, so that the yield of the final product is greatly improved. According to the separation and purification method, the purity of the obtained gamma-aminobutyric acid is greater than 99%, the yield is greater than 92%, and the crystal light transmittance is greater than 99%. The method provided by the invention is simple, efficient and low in cost, and has a wide application prospect.

The invention relates to a vacuum purification crystallization furnace and an ultra-pure manganese purification method using the same. The vacuum purification crystallization furnace comprises a furnace body and a hearth, and a distillation part and a condensation part are arranged in the hearth from bottom to top; the hearth is provided with a first baffle at the top height of the distillation component and around the peripheral side of the distillation component; a second baffle is arranged at the position, close to the top of the condensation part, of the hearth and surrounds the peripheral side of the condensation part. The first baffle and the second baffle divide the hearth into a first temperature field, a second temperature field and a third temperature field which are independently controlled in temperature from bottom to top. According to the present invention, the temperature of the distillation region and the condensation region can be independently and accurately controlled, the impurities in the manganese raw material can be completely removed, the ultra-pure manganese product with the purity of more than 5N and the density of more than 7.40 g / cm < 3 > can be obtained, the product distribution is centralized, the stripping is easy, and the yield of the product is more than 85.9%.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The invention relates to the field of intelligent monitoring, and discloses a clean room pollutant purification method and system based on flow field characteristics and a storage medium thereof.The method comprises the steps that a mobile robot inspection route and operation parameters are set according to the requirements of a clean room; the robot inspects according to a route, stops every time the robot moves a basic distance and monitors pollutant concentration and flow velocity; calculating the time-average concentration, the time-average flow velocity, the flow velocity gradient and the change frequency of the stagnation point pollutants; executing a monitoring strategy according to a threshold value, and starting an autonomous inspection algorithm to move along a flow velocity gradient direction; judging whether the flow velocity gradient is smaller than a convergence threshold, if so, determining a local extreme point and updating the inspection route; and if the pollutant concentration at the extreme point exceeds the standard, starting the purification device, otherwise, enabling the robot to return to the fixed route for continuous inspection. According to the method, the flow field characteristics are taken as preposition indexes, the autonomous identification and path optimization capability is improved, the workload and the detection time are reduced, and the monitoring efficiency, the accuracy and the maintenance intelligence level are improved.

The invention discloses an etching liquid purification device and method, and relates to the technical field of etching liquid purification, the purification device comprises a stirring tank, a circulating device, a filtering device and a plurality of feeding pipelines, the plurality of feeding pipelines are communicated with a stirring tank pipeline, the plurality of feeding pipelines are arranged, and the materials are added according to the mass according to the formula requirement, so that the raw materials are fully mixed; when raw materials enter the stirring tank, the raw materials are automatically stirred, the outer circulation loop is opened through the circulation device, liquid in the stirring tank is pumped out and conveyed through the circulation pipe, mass transfer and primary heat exchange are promoted in the circulation process, and particulate matter in the liquid is removed by integrating the filtering device on the outer circulation loop. Such as soluble particles and poorly soluble particles.

The invention relates to the technical field of purification of fine chemical intermediates, in particular to a purification method of a mannitol carbonate sulfate preparation process intermediate, which comprises the following steps: S1, synthesizing diacetone-D-mannitol; s2, preparing an organic solution containing solids; s3, performing deprotection reaction to prepare a solid crude product; s4, removing unreacted solids; s5, extracting and separating by-product solids; and S6, purifying the target product solid and recovering mannitol. Through system separation and multi-component recovery, preparation of a high-purity product and cyclic utilization of unreacted substances, byproducts and raw materials are realized, the yield is remarkably improved, the cost is reduced, and the quality of a final product is guaranteed.

The invention relates to the technical field of flue gas purification devices, in particular to an air-quenching flue gas purification system and method, an air-quenching flue gas outlet is connected with a flue gas inlet of a flue gas cleaning chamber, and a discharge port of the flue gas cleaning chamber is connected with a feed port of a gas-liquid separator; a flue gas outlet of the gas-liquid separator is connected with the input end of the fan, and the output end of the fan is connected with the chimney; a liquid outlet of the gas-liquid separator is connected with a liquid inlet of the liquid collecting box, a liquid outlet of the liquid collecting box is connected with a liquid inlet of the reservoir, and a steam outlet of the liquid collecting box is connected with the gas-liquid separator; a liquid outlet of the reservoir is connected with an input end of the solution pump, an output end of the solution pump is connected with a circulating liquid pipeline, the first branch is connected with the liquid collecting box, the second branch is connected with the flue gas cleaning chamber, and the third branch is connected with the air quenching slag chamber. According to the invention, the capturing efficiency of dust and gas pollutants in flue gas is improved.

The invention discloses a method for purifying high-purity quartz sand, which belongs to the technical field of preparation of high-purity quartz sand, and comprises the following steps: (1) sequentially carrying out high-pressure water jet scrubbing, gradient screening classification and dielectric separation on sandstone type quartz ore raw ore with SiO2 content of 85-90% to remove feldspar to obtain quartz particles with feldspar content of less than or equal to 2%; (2) sequentially carrying out microwave field pretreatment, infrared light field crack propagation and pulse laser implosion stripping on the quartz particles obtained in the step (1), and regulating and controlling technological parameters of the three fields through linkage of a PLC (Programmable Logic Controller) system, so that the stripping rate of an impurity inclusion is greater than or equal to 92%; according to the invention, aiming at quartz particles with different particle sizes, a plurality of process parameters are automatically optimized and adjusted through the PLC system, accurate control and adaptive production are realized, and high-purity products can be stably produced from sandstone type quartz raw materials with different grades in different regions. And the inclusion is opened from inside to outside through a multi-field synergistic effect, and the completeness of the quartz particles is retained to the greatest extent by combining with an optimized fluoride-free acid leaching condition.

The invention relates to the technical field of high-purity quartz purification methods, in particular to a high-purity quartz green low-consumption purification method which comprises the following steps: S1, plasma-assisted crushing pretreatment; s2, complex acid leaching-microwave synergistic impurity removal; s3, fluidized chloridizing roasting; s4, nano bubble water washing-targeted adsorption; s5, performing vacuum heat purification; according to the purification method of the high-purity quartz, the step of complex acid leaching-microwave synergistic impurity removal is adopted, highly toxic hydrofluoric acid in a traditional chemical acid leaching method is abandoned, and the toxicity of waste liquid is greatly reduced; compared with a traditional high-temperature chlorination method which needs a high temperature of 1300 DEG C or above, the method adopts fluidized chlorination roasting, so that the roasting temperature is reduced by 500 DEG C, and the energy consumption is reduced by 40%; nano-bubble ultrapure water is adopted for ultrasonic cleaning, the cleaning efficiency can be improved by 50%, and residual impurities are effectively removed; through innovative design and synergistic effect of all the steps, ultra-high purity of SiO2 with the purity being greater than or equal to 99.996% is realized, and meanwhile, environmental protection, energy conservation and consumption reduction as well as industrial stable production are taken into consideration.

The invention relates to the technical field of impurity removal and purification, in particular to a high-temperature impurity removal and purification method for a graphite material. Obtaining the furnace temperature and the output power at each moment in each monitoring period in each high-temperature purification process and the temperature and the voltage of each induction coil at each moment; calculating a first evaluation value, a power fluctuation degree, a second evaluation value and an evaluation coefficient of each monitoring period; determining the bridging confidence coefficient of each monitoring period in each high-temperature purification process; and the bridging phenomenon occurring in each monitoring period in the high-temperature purification process is evaluated, and the bridging phenomenon existing in the high-temperature purification furnace is eliminated, so that the graphite material is subjected to high-temperature purification. According to the method, the bridging phenomenon in the high-temperature purification furnace can be accurately evaluated, and stable operation of a high-temperature purification process and high-quality purification of a graphite material are ensured.

The invention discloses nitrocotton waste gas pollution-free emission treatment and purification equipment and a purification method thereof, and belongs to the technical field of waste gas treatment, waste gas can be filtered through filter holes, dust particles can be blocked by the filter holes, water can be sprayed to a filter cylinder from a plurality of nozzles and is in contact with the waste gas, and the waste gas is purified. Volatile organic compounds in waste gas are removed in a water absorption mode, sprayed water can directly impact the outside of the filter cartridge, the purpose of backflushing the filter holes is achieved, particle impurities and viscous substances in the filter holes can be flushed out, and the filter cartridge and the filter holes can be cleaned by the water in all directions in cooperation with continuous rotation of the filter cartridge. The purpose of automatically clearing the blockage of the filter holes is achieved, impurities are discharged from the discharge pipe after being flushed out of the filter holes, impurities and waste water can be discharged by opening the discharge valve outside the treatment box, and the treatment box is cleared under the condition that the equipment is not shut down, so that the service life of the equipment is prolonged, and efficient and stable purification treatment on waste gas is facilitated.

The invention belongs to the technical field of material preparation, and particularly discloses a carbon nanotube purification method which comprises the following steps: mixing a carbon nanotube crude product with a solvent, and then shearing to obtain a pretreated carbon nanotube; and oxidizing the pretreated carbon nano tube, and then performing acid pickling to obtain the purified carbon nano tube. According to the purification method disclosed by the invention, shearing treatment is introduced to mechanically activate the carbon nanotubes, and is combined with subsequent oxidation and pickling processes to efficiently remove impurity carbon in the carbon nanotubes, so that the purification method is simple, remarkable in purification effect and high in purification efficiency, the purity of the carbon nanotubes can be greatly improved, the damage to the structure of the carbon nanotubes is small, and the method is suitable for industrial production. The method is suitable for large-scale industrial production.

The invention discloses a dynamic circulating purification method and device for underground water polluted by organic matters, and relates to the technical field of organic pollutant purification, the dynamic circulating purification device comprises a sedimentation tank, a sewage inlet tank is arranged above the sedimentation tank, a sedimentation tank is arranged below the sedimentation tank, and a blow-off pipe is arranged at the bottom of the sedimentation tank; the guide plate and the sealing plate are fixedly connected at a certain angle, the guide plate and the sealing plate uniformly rotate on the inner wall of the settling pond, the guide plate is used for guiding sewage, and the sewage in the settling pond can be layered in the settling pond by rotating the sealing plate, so that organic matters settled at the bottom of the settling pond can be more effectively extracted; according to the scheme, the density difference of different components of sewage is utilized, high-concentration pollutants are settled to the bottom under the action of gravity, and relatively clear upper-layer water is positioned at the top, so that the two parts can be quickly and effectively separated, sludge at the bottom is prevented from being remixed with the upper-layer water, and the stability of the treatment effect is kept.

The invention belongs to the technical field of water environment treatment, and particularly relates to a polluted river purification method which comprises the following steps: arranging solid floating object intercepting buoys in a river, and carrying out regular mechanical cleaning through a water surface floating object cleaning boat; arranging a water quality monitoring sensor, collecting multi-dimensional water quality parameters, and establishing a three-dimensional pollution information map by combining an aerial survey image of an unmanned aerial vehicle; identifying pollution and establishing a water quality change model; predicting key indexes such as ammonia nitrogen concentration, COD (Chemical Oxygen Demand) concentration and dissolved oxygen in future 6 hours by using a water quality change model; the adjustable trash holding system is started according to the prediction result, and a purification medium is scattered; intelligent regulation and storage are achieved, and the pollution value is reduced. According to the invention, automatic sensing, accurate research and judgment, intelligent decision making and cooperative treatment of polluted river treatment are realized, and an intelligent river purification system is constructed.

The invention discloses a short-process coagulation water purification treatment method and equipment based on a polytetrafluoroethylene membrane. The method relates to the technical field of short-process coagulation water purification treatment, and comprises the following steps: firstly, adding an agent into the electronic industrial wastewater to complete pretreatment, then filtering by adopting a polytetrafluoroethylene membrane to realize water purification, continuously collecting and analyzing short-process coagulation water purification data of the electronic industrial wastewater, and timely optimizing and adjusting a treatment scheme. Pollutants in a water body are converted into micro-flocs by adding a medicament, the micro-flocs are intercepted by a polytetrafluoroethylene membrane to remove the pollutants in the water body, a real-time monitoring sensor collects water quality data and membrane operation data, and a short-process coagulation quality quantized value and a purification accuracy quantized value are obtained through further analysis. Compared with a judgment value in a database, the method optimizes a medicament adding scheme and a membrane operation scheme, improves the process applicability, and solves the problems of insufficient accuracy and adaptability of a short-process water purification treatment method in the prior art.

The embodiment of the invention provides a tetrahydrofuran purification device and a tetrahydrofuran purification method, the tetrahydrofuran purification device comprises a normal pressure rectifying tower, pervaporation equipment and a pressurized rectifying tower, and the pervaporation equipment is connected between the normal pressure rectifying tower and the pressurized rectifying tower. Therefore, the use amount of the high-pressure steam can be reduced, the energy consumption of the high-pressure steam can be reduced, the operation cost can be reduced, the operation load of the pressurized rectifying tower can be reduced, and the load upper limit of the tetrahydrofuran purification device can be improved. In addition, the pervaporation equipment is positioned at the front end of the pressurized rectifying tower, so that the influence of the pressurized rectifying tower on the pervaporation equipment is reduced, the stability of the pervaporation equipment is improved, and the dehydration efficiency of the pervaporation equipment is improved.