34results about How to "Purification process is stable" patented technology

The invention discloses a device and a method for purification treatment of gas of medical waste non-incineration treatment. The device and the method comprise the following structure and the following treatment process: exhaust gas goes into a gas buffer tank, and online detection of the exhaust gas composition is carried out; then the exhaust gas goes into a gas pretreatment device and is subjected to heat exchange with a heat exchanger; next, the exhaust gas goes into the interior of a reaction tower through a pipeline and an inlet at the lower end of the reaction tower, then flows from bottom to top, and successively passes through microorganism filler layers, an activated carbon filler layer and a photocatalytic reaction layer; after being subjected to three-time purification in the tower, the exhaust gas is discharged from the top of the reaction tower, then goes into the bottom of a water washing device through a pipeline, and at the same time, goes into the top of the water washing device for elution with water; sewage is discharged from the bottom of the water washing device, sewage treatment is carried out, and the water-washed air is exhausted from the top of the water washing device. Three treatment means are reasonably combined to control VOC and odor components in the exhaust gas; and compared with a single method, the combined three treatment means have more thorough exhaust gas treatment, basically eliminate odors, and have the VOCs removal rate which reaches more than 95%.

The invention belongs to the technical field of air purification, and relates to a building decoration material with the formaldehyde purification function and a preparation method of the building decoration material. The building decoration material is composed of the following components in parts by weight: 1-20 parts of a formaldehyde scavenger, 100 parts of a base material, 0.5-1 part of modified starch, 1-1.5 parts of a binder, 0.6-1 part of lignocellulose, 0.01-0.1 part of a foaming agent and 65-75 parts of water, wherein the formaldehyde scavenger is composed of the following componentsin parts by weight: 2-10 parts of polyvinylpyrrolidone, 1-6 parts of a water-soluble polymer compound, 4-42 parts of a chiral amino alcohol, 1-7 parts of titanium dioxide, 1-7 parts of tin dioxide, 1-7 parts of silicon dioxide, 2-6 parts of magnesium oxide, 1-13 parts of activated carbon, 1-9 parts of calcium chloride and 1-13 parts of a soluble weak acid salt. The building decoration material provided by the invention can quickly, stably, and highly efficiently purify formaldehyde, and is suitable for large-scale promotion and application.

The invention relates to a highly efficient intelligent purification system including a server, a communication network, a purification area and a mobile control terminal. The server includes a gas content information database, a judgment module, an information interaction module and a gas control module. The purifying pipeline comprises an inlet section, a filtering section, a spraying section, a gas-liquid separating section, a detecting section, an outlet section and a circulating section. A first electromagnetic valve and a second electromagnetic valve are arranged in the outlet section and the circulating section and results detected by a harmful gas-detecting sensor are transmitted to the server. The server then compares the detected hazardous gas content with the allowable content range in the database, and controls the closing of the first electromagnetic valve and the second electromagnetic valve by the comparison result, thereby controlling the current gas to be discharged out of the room or again into for purification. The invention has the advantages of good reliability, high purification efficiency, complete and stable air purification, continuous operation, and air humidification and antibacterial effect.

The invention belongs to the technical field of water treatment, and particularly relates to a compound ecologic water treatment system operating in a low-temperature season. The compound ecologic water treatment system adopts a vertical undercurrent water distribution manner and a two-level series structure; each level is divided into three layers; each first layer is a 5-50 cm heat-insulating soil layer, and overyear plants are planted on the soil layer; each second layer is a 10-30 cm earthworm acting area filled with a filling material; each third layer is a 30-80 cm microbe filling material layer, and cryophile is adsorbed onto each filling material. In the compound ecologic water treatment system, the microbe amount and activity can be remarkably improved, and the wastewater treatment performance in low-temperature season is stable and favorable; besides, the compound ecologic water treatment system has the advantages of being low in constructing and running cost, simple and convenient to maintain and operate, high in recycling degree, simple in technological process, low in secondary pollution, and good in landscape greening effect.

The invention discloses a device and method for recovering cyanogen through electric migration and recovering NH3 through oxidation. The device disclosed by the invention is composed of an electric waste gas treatment device, a cathode electric Fenton device and a carbon fluidized bed, wherein the electric waste gas treatment device is composed of an anode chamber and a cathode chamber which are separated by an ion-selective permeable membrane; and when voltages are applied to both ends of the device, waste gas enters the cathode chamber, is converted into the form of CN- and enters the anode chamber through an ion exchange membrane under the effect of electric migration, so that high-concentration HCN gas is obtained in the anode chamber and is absorbed by clear water in an HCN recovery storage tank to generate hydrocyanic acid, the hydrocyanic acid is oxidated into NH3 under the effect of a catalyst in the carbon fluidized bed, and NH3 is absorbed by acid in an absorption tank for reutilization. According to the device disclosed by the invention, HCN can be recovered from various kinds of cyanogen-containg waste gas (such as carbon fiber tail gas, allyl cyanide waste gas, calcium carbide furnace gas, coke oven gas, yellow phosphorus tail gas and the like) and can be synthesized into NH3 products.

The invention discloses a device for absorbing and concentrating carbon dioxide containing exhaust gas. The device mainly consists of a carbon dioxide exhaust gas absorbing device and an EDI (Electronic Data Interchange) carbonic acid recovery device, wherein the EDI carbonic acid recovery device mainly consists of an anode chamber, a concentration chamber and a cathode chamber. The chambers are separated by ion exchange membranes. Carbon dioxide in exhaust gas is first reacted with an alkaline absorption liquid electrically generated in the carbon dioxide exhaust gas absorbing device to be converted into carbonate, and the absorbent is regenerated and pure carbonic acid is harvest in the EDI carbonic acid recovery device finally. The pure carbonic acid harvested can be directly used or used for extracting pure carbon dioxide. The device has the advantages of electric regeneration and circulation of the absorption liquid, capture of carbon dioxide, regeneration of the absorbent and extraction of carbon dioxide, easy operation, cost saving and the like. Carbon dioxide generated can be used as raw materials for producing chemical fertilizers and the like and manufacturing organic fuel such as methanol and the like.

The invention discloses a device and a method for electro-dynamic migration recovery and cyanogen-containing waste gas purification. The device consists of an electric waste gas treatment device and a cathode electro-Fenton device, wherein the electric waste gas treatment device consists of an anode chamber and a cathode chamber which are separated by an ionic selective permeable membrane, a voltage is applied to two ends of the device, the waste gas enters the cathode chamber and is converted into CN<->, the CN<-> penetrates an ion exchange membrane and enters the anode chamber under the action of electric migration, and high-concentration HCN gas is obtained in the anode chamber, collected by a HCN recovery storage tank and reused. The device can be used for recovering the HCN in various cyanogen-containing waste gases (such as carbon fiber tail gas, allyl cyanide tail gas, calcium carbide furnace gas, coke oven gas and yellow phosphorus tail gas).

The invention discloses a graphene quantum dot composite membrane for urban sewage purification treatment as well as a preparation method, and belongs to the technical field of sewage treatment membranes. The composite membrane comprises a base membrane and graphene oxide quantum dots deposited on the base membrane, the graphene oxide quantum dots are doped with silver, and the graphene oxide quantum dots are a nanosheet with diameter of 5-13 nm and thickness of 1-2 nm. The preparation method of the composite membrane comprises following steps: graphene oxide is prepared after oxidation of graphene and dispersed in a silver nitrate solution, silver ions in the silver nitrate solution are reduced by an electrochemistry method, the graphene oxide quantum dots are obtained, then the grapheneoxide quantum dots are deposited on the base membrane by electrodeposition to obtain the composite membrane. The prepared composite membrane has high water flux, high anti-fouling property, high antibacterial property and better stability, and can effectively purify water in the urban sewage purification treatment and avoid secondary pollution.

The invention discloses a laboratory use direction-variable air sterilization device comprising a housing 1, one or a plurality of drug storage boxes 2, an air detection device, a control module 11 and a water delivery tank 3. The control module controls drug feeding valves and a water delivery valve to work according to detection results of the air detection device and detection results of a liquid level detector. Air harmful ingredients can be in real time monitored, and according to the concentration of the harmful ingredients, the concentration of a drug in a corresponding storage tank can be automatically adjusted, the purification efficiency of the harmful ingredients can be regulated, a variety of air harmful ingredients can be in real time monitored and controlled, and air quality can be ensured. The liquid level in the storage tank can be detected by the liquid level detector, so that real-time supplement is facilitated, air can be in full contact with air cleaning agents in all storage tanks when the air flows in the laboratory use direction-variable air sterilization device, and the stability of air purification can be guaranteed.

The invention belongs to the technical field of heavy metal pollutant purification in water pollution control engineering, and relates to a filler capable of enhancing dechrormization effect of a rapid infiltration system. The invention is characterized in that the filler is prepared from a filler, water, a Na2CO3 solution, a divalent metal ion solution and a trivalent metal ion solution, wherein the ratio of the filler, water and Na2CO3 solution is (100-200)g:500ml:10ml, and the ratio of the mass of the filler, the mole number of divalent metal ions in the divalent metal ion solution and the mole number of trivalent metal ions in the trivalent metal ion solution is (2-4)kg:(2-4)mol:(1-2)mol. The preparation method comprises the following steps: in a hot bath, carrying out coprecipitation reaction on divalent metal compounds and trivalent metal compounds under alkaline conditions to generate a bimetal hydroxide precipitate which is attached to the filler surface in the solution and also generate a laminar bimetal hydroxide film; and carrying out centrifugal separation, drying in a drying oven until the laminar bimetal hydroxide film is fixed to the filler surface, thereby changing the filler surface micropore structure, enhancing the hexavalent chrome adsorption capacity of the filler and having excellent effects on removing hexavalent chrome.

The invention discloses a device for preparing silver cyanide (AgCN) by recovering hydrogen cyanide (HCN) through electrodynamic migration. The device consists of an electric waste gas treatment device, a cathode electro-Fenton device and an HCN gas absorption device, wherein the electric waste gas treatment device consists of an anode chamber and a cathode chamber; the anode chamber and a cathode chamber is partitioned by an ion permselective membrane; voltages are respectively applied to both ends of the device; a waste gas is converted into a CN<-> form after entering the cathode chamber, and transmits an ion exchange membrane under the action of electromigration to enter the anode chamber; a high-concentration HCN gas is obtained in the anode chamber; the high-concentration HCN gas is collected in an HCN recovery storage tank; absorption liquid in an absorption liquid tank contains Ag<+>; and the Ag<+> reacts with HCN in an absorption tower. The device disclosed by the invention can be used for recovering HCN in various cyanogen-contained waste gases, such as a carbon fiber tail gas, an allyl cyanide gas, a calcium carbide furnace gas, a coke-oven gas, a yellow phosphorus tail gas and the like, and the HCN can be produced into an AgCN product.

The invention relates to a combined biological treatment method of high-concentration COD chromium-containing electroplating cleaning wastewater. The method comprises the following steps: sequentiallytreating the wastewater through an adjusting tank, a primary filtering unit, an oxidation unit, a biodegradation unit and a post-filtering unit, discharging after reaching the standard, and directlyrecycling or deeply treating and recycling. According to the method, a heterogeneous catalytic oxidation technology and a biotechnology are organically combined, the two treatment technologies supplement each other, and aiming at the high-concentration COD chromium-containing electroplating cleaning organic wastewater which is difficult to treat, synergistic removal of heavy metals such as high-concentration COD, low ammonia nitrogen, total phosphorus and hexavalent chromium and other various pollutants is completed. The degradation-resistant wastewater is subjected to heterogeneous catalyticoxidation regulation to create a dominant environment for subsequent biological treatment of specific strains so that hexavalent chromium detoxication and organic pollutant removal are completed at the same time. Chemical agents do not need to be added in the whole treatment process, the ion concentration in the wastewater is not increased, up-to-standard discharge or reuse as enterprise production make-up water is finally realized, and purification or resource utilization of the wastewater is realized.

The invention relates to an efficient and intelligent purifying method. According to the efficient and intelligent purifying method, a purifying platform is built in advance, and comprises a server, a communication network, a purifying area and a mobile control terminal; the server comprises a gas content information database, a judging module, an information interaction module and a control module; a purifying pipeline comprises an air inlet section, a filtering section, a spraying section, a gas-liquid separation section, a detecting section, an air outlet section and a circulating section; a first electromagnetic valve and a second electromagnetic valve are arranged in the air outlet section and the circulating section; a harmful gas detecting sensor detects the harmful gas content and sends the detecting result to the server; and the server compares the detected harmful gas content with the allowed content range in the database, and controls the closing of the first electromagnetic valve and the second electromagnetic valve according to the comparing result, so that the current gas can be controlled to be exhausted to the outside world or purified again. The efficient and intelligent purifying method provided by the invention is high in reliability, intelligence and purifying efficiency; the air purifying process is thorough and stable, and can be operated continuously; and the air humidification property and the antibacterial property can be achieved simultaneously.

The invention discloses a boiling refrigerant purifying device. The device comprises a liquid injection port, a ball valve, a coarse filter, an evaporation tank, a condenser, a collecting tank, a magnetic pump, a dryer and a liquid discharge port which are sequentially connected; a heating cavity is arranged below the evaporation tank; a heater is arranged at the bottom of the heating cavity; a transparent water tank is connected on the heating cavity; the bottom end of the evaporation tank is connected with the magnetic pump through a pipeline; a fine filter is connected on the magnetic pump;the outlet of the fine filter is connected with the outlet of a coarse filter; and a vacuum compressor is connected on the collecting tank. According to the device, the characteristics of low boilingpoint of the boiling refrigerant is utilized, physical filtration, distillation and drying are carried out to effectively remove impurities in the boiling refrigerant, and only simple steps are needed to realize the purification of the boiling refrigerant. The device has the characteristics of high purification efficiency, strong purification capability, smooth purification process, safety, reliability, no leakage and the like, and has good maintainability.

The invention discloses a system for ecological purification of a water body on the basis of a nanometer coupling material. The system comprises an exogenous interception unit, an endogenous control unit, an artificial purification unit and an ecological restoration unit, wherein the exogenous intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned at two sides of a river channel; the ecological intercepting ditch comprises a plurality of intercepting ditches and intercepting pools communicating with theintercepting ditches; gravel and a water treatment slow-release agent are laid on the bottom walls of the intercepting ditches; porous ceramic particles are laid on the bottom walls of the intercepting pools; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags which are stacked layer by layer along the slope surface and are mutually locked; a moisture absorption material fills each moisture absorption ecological bag; the artificial purification unit comprises an air supply device and an aeration device; the air supply device comprisesa fan and a pipeline; the aeration device comprises a membrane frame and hollow fiber membrane assemblies fixedly arranged on the membrane frame; the membrane frame is of a hollow structure; one endof the membrane frame is connected with the pipeline; and the membrane frame is used for conveying gas to the hollow fiber membrane assemblies. The system provided by the invention constructs a complete ecological chain to reinforce the self-purification capacity of river water and stabilize the effect of water purification.

The invention discloses a dining table with a lampblack purification system. An oil fume purification system is integrated in the table body; the oil fume purification system is provided with an oil fume inlet formed in the circumferential periphery of the cookware on the table body; the sucked oil smoke is purified by the purification assembly; the purification assembly comprises an activated carbon purification mechanism, the activated carbon purification mechanism comprises an activated carbon layer and a temperature control assembly used for controlling the temperature of the activated carbon layer, when lampblack penetrates through the activated carbon layer to be subjected to adsorption purification treatment, the temperature control assembly controls the activated carbon layer to beat a first temperature, and the first temperature is higher than the dew point temperature of the lampblack. According to the dining table with the lampblack purification system, lampblack can be timely and fully pumped away; the dining table guarantees the body health of consumers, improves the quality of the dining environment, does not occupy extra space, does not hinder the consumers to normally pick up dishes, is better in dining experience, purifies cooking fume through the purification assembly, avoids environmental pollution caused by outward discharge of the cooking fume, and is goodin environmental protection property.

The invention belongs to the technical field of water treatment, and particularly relates to a compound ecologic water treatment system operating in a low-temperature season. The compound ecologic water treatment system adopts a vertical undercurrent water distribution manner and a two-level series structure; each level is divided into three layers; each first layer is a 5-50 cm heat-insulating soil layer, and overyear plants are planted on the soil layer; each second layer is a 10-30 cm earthworm acting area filled with a filling material; each third layer is a 30-80 cm microbe filling material layer, and cryophile is adsorbed onto each filling material. In the compound ecologic water treatment system, the microbe amount and activity can be remarkably improved, and the wastewater treatment performance in low-temperature season is stable and favorable; besides, the compound ecologic water treatment system has the advantages of being low in constructing and running cost, simple and convenient to maintain and operate, high in recycling degree, simple in technological process, low in secondary pollution, and good in landscape greening effect.

The invention discloses a device for recovering hydrogen cyanide and preparing silver cyanide by electrodynamic migration. The device consists of an electric exhaust gas treatment device, a cathode electro-Fenton device, and an HCN gas absorption device. The electric exhaust gas treatment device is composed of an anode chamber and a cathode chamber, which are separated by an ion-selective permeable membrane, and a voltage is applied to both ends of the device. , the exhaust gas enters the cathode chamber and is converted into CN- form, and enters the anode chamber through the ion exchange membrane under the action of electromigration, and obtains high-concentration HCN gas in the anode chamber, which is collected by the HCN recovery storage tank, and the absorption liquid in the absorption liquid tank contains Ag+, react with HCN in the absorption tower to prepare the product AgCN. The device can recover HCN from various cyanide-containing waste gases (such as carbon fiber tail gas, acrylcyanide waste gas, calcium carbide furnace gas, coke oven gas, yellow phosphorus tail gas, etc.) and produce AgCN products.

The invention discloses a device for absorbing and concentrating carbon dioxide containing exhaust gas. The device mainly consists of a carbon dioxide exhaust gas absorbing device and an EDI (Electronic Data Interchange) carbonic acid recovery device, wherein the EDI carbonic acid recovery device mainly consists of an anode chamber, a concentration chamber and a cathode chamber. The chambers are separated by ion exchange membranes. Carbon dioxide in exhaust gas is first reacted with an alkaline absorption liquid electrically generated in the carbon dioxide exhaust gas absorbing device to be converted into carbonate, and the absorbent is regenerated and pure carbonic acid is harvest in the EDI carbonic acid recovery device finally. The pure carbonic acid harvested can be directly used or used for extracting pure carbon dioxide. The device has the advantages of electric regeneration and circulation of the absorption liquid, capture of carbon dioxide, regeneration of the absorbent and extraction of carbon dioxide, easy operation, cost saving and the like. Carbon dioxide generated can be used as raw materials for producing chemical fertilizers and the like and manufacturing organic fuel such as methanol and the like.

The present invention relates to an air cleaner capable of stably cleaning the air in the entire room by properly controlling the airflow in a room under various installation environments. The air cleaner (1) is equipped with a casing (2), an air inlet (4), an air outlet (5), a fan unit (6), a deodorizing filter (10), a dust collection filter (11), a movable louver ( 12), drive unit (13), shaking head mechanism (14), internal detection device (15), external detection device (16), control device (18), etc. The wind direction of the air blown out from the air outlet (5) is changed between the front and the top and in the vertical direction by the movable louver (12), and is changed in the left and right direction by the oscillating mechanism (14). An external detection device (16) detects indoor information including at least a distance from a wall of a room. Moreover, the control device (18) controls at least one air supply parameter in the wind direction, air volume and wind speed of the blown air based on the detection result of the indoor information, so that the blown air is formed and returned to the air cleaner (1 ) recirculating airflow at the position.

The invention discloses a device and a method for electro-dynamic migration recovery and cyanogen-containing waste gas purification. The device consists of an electric waste gas treatment device and a cathode electro-Fenton device, wherein the electric waste gas treatment device consists of an anode chamber and a cathode chamber which are separated by an ionic selective permeable membrane, a voltage is applied to two ends of the device, the waste gas enters the cathode chamber and is converted into CN<->, the CN<-> penetrates an ion exchange membrane and enters the anode chamber under the action of electric migration, and high-concentration HCN gas is obtained in the anode chamber, collected by a HCN recovery storage tank and reused. The device can be used for recovering the HCN in various cyanogen-containing waste gases (such as carbon fiber tail gas, allyl cyanide tail gas, calcium carbide furnace gas, coke oven gas and yellow phosphorus tail gas).

The invention relates to an apparatus and a method of bubble column three-phase bio-reactor for purifying toluene waste gas. The apparatus comprises a bubble column three-phase bio-reactor, a buffer tank, a flowmeter, an air pump, an inorganic salt medium storage tank and a peristaltic pump constant-temperature electric heater; wherein the bubble column three-phase bio-reactor is a square column shaped shell. The side length of the square of cross section of the shell is 0.12-0.2m. An air distribution plate is arranged in the central position of the bottom of the shell. A detachable pysamid shaped seal is arranged at the upper part of the shell. A water outlet is arranged at a position adjacent to the bottom surface below the shell, and the internal diameter of the water outlet is 5 timesthat of immobilized thallus; wherein height-diameter ratio of the shell is 10:1-12:1. Toluene is purified by immobilized Pseudomonas putida WQ-03. A liquid phase is the inorganic salt medium, and the bubble column three-phase bio-reactor has no internal components, thus the rising resistance of air is small, the stay period is short, and the treating effect is good. Therefore, the research of using immobilized thallus to purify toluene waste gas in the bubble column three-phase bio-reactor has important actual application value.

The invention belongs to the technical field of air purification, and relates to paint having a formaldehyde removing function and a preparation method thereof. The paint specifically comprises, by weight, 1-3.4 parts of a formaldehyde removing agent, 3-13 parts of a base material, 0.05-0.1 part of an antifoaming agent, 0.05-0.1 part of a levelling agent and 0.01-0.05 part of a pH conditioning agent. The formaldehyde removing agent comprises, by weight, 1-13 parts of polyvinylpyrrolidone, 1-10 parts of water-soluble polymeric compounds, 4-42 parts of chiral amino alcohol, 1-7 parts of titaniumoxide, 1-7 parts of stannic oxide, 1-7 parts of silicon dioxide, 2-6 parts of magnesium oxide, 1-13 parts of active carbon, 1-9 parts of a soluble weak acid salt and 500-800 parts of a solvent. The formaldehyde can be removed quickly, stably and efficiently by the paint, raw materials are cheap and easily available, technology is simple and easy, and the paint and the preparation method are suitable for large-scale promotion and application.

The invention discloses an ecological water body purification system based on a nano-coupling material. The ecological water body purification system comprises an exogenous interception unit, an endogenous control unit, an artificial purification unit and an ecological restoration unit, wherein the exogenous intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned on two sides of a river channel; the ecological intercepting ditch comprises a plurality of intercepting ditches and intercepting pools communicating with the intercepting ditches, gravel and a water treatment slow-release agent are laid on the bottom walls of the intercepting ditches, and porous ceramic particles are laid on the bottom walls of the intercepting pools; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags stacked layer by layer along a slope surface, and moisture absorption materials are contained in the moisture absorption ecological bags; the artificial purification unit comprises an air supply device and an aeration device; the air supply device comprises afan and a pipeline; and the aeration device comprises a membrane frame and a hollow fiber membrane assembly fixed on the membrane frame, the membrane frame is of a hollow structure, one end of the membrane frame is connected with a pipeline, and the membrane frame is used for conveying gas to the hollow fiber membrane assembly. According to the system, a complete ecological chain is constructed, river water self-purification capacity is enhanced, and water purification effect is stabilized.

The invention discloses a soluble metal salt recovery and wastewater purification device and a method thereof. The device comprises an anode chamber, a first fresh water tank, a concentrated water tank, a second fresh water tank and a cathode chamber. Each compartment is separated by ion selective permeation walls. Voltages are added at two ends of the device. Influent water first passes through the first fresh water tank, then passes through the second fresh water tank, and finally purified effluent water can be obtained. Under the effect of electromigration, negative and positive ions migrate towards the positive ion and negative ion selective permeation walls, and are adsorbed and then penetrate into the concentrated water tank, inside which the concentrated solution can be used for ion recovery. The device of the invention can be used for pure water preparation, seawater desalination, mineral matter extraction from underground mineral water, boiler water softening, and also can be used for industrial wastewater treatment as well as recovery of useful ions in wastewater.

The invention discloses a gas purification device, which comprises a shell and an activated carbon purification mechanism, wherein a gas inlet and a gas outlet are formed in the shell; the activated carbon purification mechanism is arranged in the shell and comprises an activated carbon layer and a temperature control assembly used for controlling the temperature of the activated carbon layer, andwhen gas to be treated flowing through the shell penetrates through the activated carbon layer to be subjected to adsorption purification treatment, the temperature control assembly controls the activated carbon layer to be at a first temperature, the first temperature is higher than the dew point temperature of the gas to be treated. According to the gas purification device disclosed by the invention, gas is adsorbed and purified by utilizing the activated carbon under the condition that the temperature is higher than the dew point, so that moisture-containing gas can be effectively prevented from being condensed when passing through the activated carbon layer, micropores of the activated carbon layer are prevented from being blocked by liquid generated by condensation, good adsorption activity and smoothness of the activated carbon layer are guaranteed, and the purification effect is guaranteed.

The invention provides a purifying and impurity-removing method of a leaching solution containing vanadium, which comprises the following steps: leaching a material containing vanadium to obtain the leaching solution containing vanadium; according to the phosphorus content and the silicon content in the leaching solution containing vanadium, respectively determining the addition of magnesium sulfate and the addition of alum; heating the leaching solution containing vanadium to a certain temperature; first adding part of the alum while stirring the leaching solution containing vanadium; after a first period of time, adding the magnesium sulfate to the mixture; after a second period of time, adding the residual alum to the mixture; after reaction for a period of time, standing and precipitating the mixture; and after precipitating the mixture after reaction for a period of time, delivering the clear solution to a subsequent process of precipitation, and delivering the bottom flow to a plate frame for pressing filtration. The method can effectively control the content of silicon and phosphorus in the solution containing vanadium to below relatively low values, reduces the loss of vanadium and greatly increases the purifying yield.