103 results about "Granular activated carbon" patented technology

The invention relates to a ferromanganese bimetallic oxide-loaded granular active carbon material, a preparation method and application thereof, and belongs to the technical field of environmental functional materials and water treatment.The preparation method comprises the following steps: determining the saturated water absorption volume of granular active carbon per unit mass; the preparation method comprises the following steps: sequentially and completely dissolving manganese acetate tetrahydrate and iron nitrate nonahydrate in deionized water, then adding citric acid monohydrate, and fully stirring for reaction to obtain a manganese-iron-citric acid sol system; putting the dried granular activated carbon into a manganese-iron-citric acid sol system, uniformly stirring, and standing to obtain iron-manganese impregnated granular activated carbon; transferring the iron-manganese impregnated granular activated carbon into a drying oven for drying to obtain dried iron-manganese impregnated granular activated carbon; the dry iron-manganese impregnated granular active carbon is calcined under the oxygen-limited or oxygen-free condition, equivalent-volume impregnation, a normal-temperature sol-gel method and a high-temperature calcination technology are combined, no organic solvent or high-pressure equipment is needed, operation is safe, no waste liquid is generated, and large-scale production of materials is easy to achieve.

The utility model provides a kind of air purification drying device for bottle blowing, it is related to bottle blowing processing technical field, and it includes: box body;The box body is fixed on bottle blowing equipment, and there is an exhaust pipe welded on the right side of box body, and the exhaust pipe is connected with bottle blowing gas supply pipeline, and filter screen seat is inserted on the box body.The device adopts filter screen and filter box double filtration structure, gas is first intercepted large particle impurities by filter screen, and then passes through filter box filled with filter cotton and activated carbon.Filter cotton can further filter fine particles, and activated carbon can effectively remove odour, harmful gas and other gases by virtue of strong adsorption capacity, and the combination of the two greatly improves the depth and precision of air purification;The base block at the top end of the inner wall of box body is connected with cleaning brush by spring rod, and when pulling filter screen seat, cleaning brush can automatically clean the sundries on filter screen, and spring rod can ensure that cleaning brush is always in close contact with filter screen, even if wear, it can also automatically follow up, reduce manual cleaning frequency, reduce maintenance cost and workload.

The invention discloses a Yellow River raw water coagulation-sand filtration-ultrafiltration treatment system and method based on a composite filter material, and belongs to the technical field of water treatment. The device comprises a coagulation unit, a sand filtration unit and an ultrafiltration unit which are sequentially connected in the water flow direction. Wherein the sand filtration unit is filled with multiple layers of composite filter materials, and the composite filter materials sequentially comprise an aluminum ion modified quartz sand layer, an aluminum ion modified quartz sand layer and an aluminum ion modified quartz sand layer from top to bottom, the granular active carbon layer is used for deeply adsorbing and removing small molecular organic matters; and the manganese sand layer is used for catalytically removing iron and manganese ions and is used as a supporting layer for stabilizing the filter bed. The method comprises the following steps: carrying out coagulation treatment on Yellow River raw water, introducing the treated Yellow River raw water into the composite sand filtration unit, carrying out deep pretreatment, and filtering the pretreated Yellow River raw water through the ultrafiltration membrane. According to the method, through gradient filtration and function cooperation of the composite filter material, the synchronous removal efficiency of turbidity and UV254 can be remarkably improved, high-quality inlet water is provided for an ultrafiltration membrane, membrane pollution is effectively controlled, system operation energy consumption is reduced, and the method has the advantages of being low in resource consumption, little in environmental pollution, good in economic benefit and the like.

The invention relates to equipment and a process for treating fine chemical wastewater through granular active carbon countercurrent adsorption, and relates to the technical field of wastewater treatment. The equipment comprises a countercurrent adsorption tank, granular activated carbon is arranged in the countercurrent adsorption tank, a forward flow water inlet pipe and a countercurrent water inlet pipe are further arranged on the countercurrent adsorption tank, one end of the forward flow water inlet pipe and one end of the countercurrent water inlet pipe are both communicated with the countercurrent adsorption tank, and the other end of the countercurrent water inlet pipe is communicated with the countercurrent adsorption tank. The other end of the forward flow water inlet pipe is communicated with a chemical wastewater source with first concentration, the other end of the reverse flow water inlet pipe is communicated with a chemical wastewater source with second concentration, and the first concentration is smaller than the second concentration; valves are arranged on the forward flow water inlet pipe and the reverse flow water inlet pipe, and the valve on the reverse flow water inlet pipe is used for opening the reverse flow water inlet pipe after the granular activated carbon adsorbs the chemical wastewater with the first concentration. The device has the effect of improving the utilization rate of the granular active carbon in the adsorption tank.

A granular activated carbon (GAC) reactivation waste product enhanced activated sludge system for removing PFAS from a flow of wastewater and / or landfill includes at least one bioreactor including biomass to receive the feed water and to promote growth of biological flocs, and an impregnation subsystem to receive a flow of biomass and a predetermined amount of GAC reactivation waste product and to blend the biomass with the GAC reactivation waste product to form GAC reactivation waste product-impregnated biological flocs. The impregnation subsystem outputs a flow of GAC reactivation waste product-impregnated biological flocs to the bioreactor such that the GAC reactivation waste product-impregnated biological flocs in the bioreactor adsorb to and remove the PFAS from the treated water, and the bioreactor outputs a flow of GAC reactivation waste product-impregnated biological flocs and treated water. The system also includes at least one secondary clarifier coupled to the bioreactor which separates the GAC reactivation waste product-impregnated biological flocs from the wastewater and / or landfill leachate and produces a flow the treated water.

The invention discloses a VOCs waste gas continuous treatment device and method based on secondary activated carbon adsorption in the field of air pollution treatment, and aims to solve the technical problems that an existing VOCs waste gas treatment process depends on a boiler, treatment is discontinuous, the investment cost is high, and adaptability is poor. According to the device, an original gas collection pipeline and a fan of an enterprise are reformed, and a first-stage granular activated carbon adsorption unit and a second-stage fine-particle-size activated carbon adsorption unit are connected in series to form a closed-loop treatment system of collection, graded adsorption, pressure-boosting discharge and maintenance and update; according to the treatment method, continuous deep purification of the VOCs waste gas with medium and low concentration is realized by controlling the retention time of the waste gas in the two-stage adsorption unit and the particle size gradient of the activated carbon. The investment is less than or equal to 10 thousand yuan, the treatment gas amount is 8000m / h, the NMHC emission concentration is less than or equal to 50mg / m, the secondary standard of the table 2 of Integrated Emission Standard of Air Pollutants (GB16297-1996) is met, the device can continuously and stably run for more than or equal to 6 months in 24 hours, and the device is adaptive to the waste gas treatment requirements of chemical devices such as acetic acid, methanol and the like.

The application discloses a kind of high-efficiency cleaning methods of fine mud-adhered granular activated carbon, and relates to the field of adsorption separation technology.The method comprises the following steps: immersing granular activated carbon in a first aqueous medium, alternately performing pressure swing treatment by reducing pressure and increasing pressure, and discharging the medium containing fine mud that falls off;then, the activated carbon is cleaned by pulse ultrasonic cleaning using a second aqueous medium, at least two different ultrasonic frequencies are used in the cleaning process, and the medium is synchronously circulated, extracted, separated from fine mud and returned;finally, the activated carbon is treated with a final cleaning solution containing tetrasodium glutamate diacetate and sodium gluconate, and then washed with water to obtain cleaned granular activated carbon.By the synergistic effect of pressure disturbance, multi-frequency pulse ultrasonic, circulating mud removal and chelation cleaning, fine mud adhered to the surface and pores of the activated carbon can be efficiently removed, and the adsorption performance can be restored.The process is efficient and has good cleaning effect.

The utility model discloses a sintering machine flue gas dioxin removal device, and relates to the technical field of sintering flue gas dioxin treatment. A flue gas inlet of a fixed bed activated carbon adsorption tower is connected with a tubular heat exchanger through a connecting pipeline, and an electric air mixing valve is mounted at the connecting pipeline; the adsorption tower is divided into upper, middle and lower parts; the lower end of the lower part is a gas inlet outer hopper, the upper part is fixedly provided with a filler inner hopper, the filler inner hopper is filled with granular activated carbon filler, the lower end of the filler inner hopper is provided with an activated carbon discharge port and penetrates out of the lower end of the gas inlet outer hopper, and a flue gas inlet is formed in one side below the filler inner hopper; the lower end of the middle part is directly communicated with the lower part, and the upper end is separated from the upper part through a uniform distributor; the flue gas outlet is formed in one side of the upper part of the middle part; the upper part of the adsorption tower is used for supplementing and adding filler downwards through the activated carbon feeding hole; the device is simple in structure, easy in filler replacement and flexible in arrangement, and is suitable for removing dioxin pollutants in the flue gas of the sintering machine in iron and steel enterprises.

This utility model discloses a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate, belonging to the field of wastewater collection technology. It includes a centrifugal filtration device, a distillation tower, an oxidation tank, a membrane filtration system, an activated carbon adsorption box, and a recovery water tank arranged sequentially. The activated carbon adsorption box includes a box body with several symmetrically arranged support legs at the bottom. An outlet is located at the top of the box body, an inlet is located on the bottom side wall, and a wastewater outlet is located at the center of the bottom. The box body has a water distribution layer, a coarse-particle activated carbon layer, and a fine-particle activated carbon layer distributed sequentially from bottom to top. This centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate purifies the wastewater after centrifugation, allowing it to be reused as process water or cooling water, reducing the amount of fresh water required.

The utility model relates to the technical field of barreled water processing, and discloses an activated carbon filter for barreled water processing, which comprises a filter shell and a filter shell cover mounted at the upper end of the filter shell through a fastener, a filter element assembly is mounted in the filter shell, a sewage discharge plug is mounted at the lower end of the filter shell, and a filter element is mounted in the filter shell. A filter element cover is embedded in the upper end of the filter element assembly, the filter element assembly comprises a filter cylinder, the filter cylinder is sequentially divided into a lower space, a middle space and an upper space from bottom to top, the lower space is filled with large-particle activated carbon, the middle space is filled with medium-particle activated carbon, and the upper space is filled with small-particle activated carbon. The filter element cover, the filter element assembly and the small-mesh filter screen and the medium-mesh filter screen in the filter element assembly can be directly detached, so that small-particle activated carbon, medium-particle activated carbon and large-particle activated carbon can be conveniently replaced; and after three-stage filtration, the water is discharged, so that the filtering effect is effectively improved.

The utility model discloses a VOCS waste gas treatment device, which comprises a waste gas tank, a gas inlet cone box, a delivery pipe, a dispersing pipe, a gas dispersing hole, a filter element assembly, a gas dispersing ring and a circulating assembly, the gas inlet cone box is fixedly arranged at the inner top of the waste gas tank, and the top of the delivery pipe is fixedly arranged at the bottom of the gas inlet cone box. VOCS waste gas enters from the upper inlet pipe, the VOCS waste gas enters the air inlet cone box, solid particles of the VOCS waste gas are intercepted in the coarse particle intercepting layer and the fine particle intercepting layer, and the VOCS waste gas is dispersed from the air dispersing holes of the dispersing pipe; the VOCS waste gas passes through the ceramic particle layer, the zeolite particle layer, the particle active carbon layer, the fiber filter material layer and the filter cloth, so that harmful substances in the VOCS waste gas are effectively filtered out, and atmospheric pollution is avoided; the VOCS waste gas in the circulating pipe enters the inner bottom of the waste gas tank through the circulating fan, and the VOCS waste gas is filtered again through the ceramic particle layer, the zeolite particle layer, the granular activated carbon layer and the fiber filtering material layer until filtering is completed.

The application discloses a microwave regeneration device and method for waste granular activated carbon, which comprises a shell, a plurality of microwave generators, a plurality of temperature sensors, a gas distributor, a stirrer and a controller, wherein the plurality of microwave generators are arranged in a ring shape on the shell, and the radiation surface formed is substantially perpendicular to the running direction of the waste granular activated carbon; the plurality of temperature sensors are uniformly arranged on the inner wall of the shell; the gas distributor is arranged around the waste granular activated carbon, and gas nozzles are uniformly distributed on the gas distributor and arranged towards the inside; the microwave generators and the temperature sensors are connected with the controller; and the stirrer is provided with a plurality of layers of stirring blades.

The utility model discloses a sulfur autotrophic denitrification filter material reinforced constructed wetland microbial fuel cell sewage treatment system which comprises a container main body, the container main body sequentially comprises a gravel water distribution layer, a granular activated carbon anode layer, a sulfur autotrophic denitrification filter material layer, a middle gravel layer, a granular activated carbon cathode layer and a wetland plant layer from bottom to top, anodes are embedded in the granular activated carbon anode layer, cathodes are embedded in the granular activated carbon cathode layer, and the wetland plant layer is arranged in the middle gravel layer. A lead penetrates through the granular activated carbon anode layer and the granular activated carbon cathode layer to connect the anode with the cathode, a water inlet is formed in the gravel water distribution layer, and a water outlet is formed in the wetland plant layer. According to the utility model, the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology are combined, so that the dual effects of pollutant removal and electricity generation are realized, a new idea is provided for the combination of the constructed wetland microbial fuel cell and the sulfur autotrophic denitrification technology, and meanwhile, a new direction is provided for the removal of river sewage.

A method for treating a PFAS-laden solid material, comprising: treating a feed fluid with a gliding-arc plasma (GAP) to give rise to a plasma-activated fluid; fluidizing the PFAS-laden solid material; and contacting the PFAS-laden solid material and the plasma-activated fluid in a reaction zone under conditions sufficient to at least partly mineralize at least some of the PFAS so as to give rise to (i) a treated solid material having a reduced PFAS load and (ii) at least one degradation product, the PFAS-laden solid material optionally comprising any one or more of sand, soil, sediment, absorbent media, particulate activated carbon, and ion exchange resin. Other related systems and methods are also described.

Described are wastewater treatment systems comprising a biologically active conduit defining a single, confined serpentine flow path twisting from top to bottom portions. The system establishes sequential aerobic, anoxic, and anaerobic treatment zones populated with zone-specific biological chips containing dominant biologically active media. Mesh separators prevent biological chip displacement between zones while allowing wastewater flow. The system receives influent wastewater through a bottom opening and dispenses treated effluent from the same opening following simultaneous batch treatment across all zones. Methods include wastewater treatment processes, modular assembly techniques, and attribute management systems using adjustable bypass valves and venturi-based air introduction for precise dissolved oxygen control. The systems achieve enhanced PFAS removal by reducing organic matter competition for granular activated carbon (GAC) adsorption sites, extending GAC operational life by at least 25%. Advanced features include dual recirculation capabilities, overflow protection, space-efficient modular design, and fine-tuned control enabling >90% PFAS removal efficiency.

The utility model discloses an activated carbon sampling device for an activated carbon pool, a rod assembly comprises a first connecting rod and second connecting rods, and the sampling depth is adjusted by increasing or decreasing the number of the second connecting rods; the sampling assembly comprises a sampling rod and a flow guide plate; the sleeve assembly comprises a sleeve and a third connecting rod, and the sleeve sleeves the rod assembly through the third connecting rod and can move relative to the sampling assembly. During sampling, the sampling assembly is rotated to enable the flow guide plate to collect samples, then the sleeve blade edge is cut into the activated carbon layer, and in-situ water filtering is achieved through the first water permeable holes. The device can obtain the deep sample of the carbon pool without manual excavation, avoids pollution and is convenient to operate; a detachable structure is convenient to adjust the sampling depth and carry and transport; the flow guide plate and the first water permeable holes cooperate to avoid the pond body drainage step, the sampling efficiency is improved, and the detachable connection of the device gives consideration to the operation flexibility and the sampling precision.

The utility model discloses an active carbon filtering device relates to active carbon technical field, the utility model discloses a filtering part is used for filtering to active carbon material, and the anti -blocking part is installed in the filtering part top, the anti -blocking part is used for dredging to active carbon material, wherein, the utility model discloses a filter plate no.

Solid absorbent compositions and methods for removing mercaptan sulfur compounds from hydrocarbon streams are provided. These compositions can include porous granular activated carbon particles having an internal pore surface containing a bound trinuclear basic iron(III) acetate complex containing a [Fe3(μ 3 -O)] core structure.

A granular activated carbon (GAC) reactivation waste product enhanced activated sludge system for removing PFAS from a flow of wastewater and / or landfill includes at least one bioreactor including biomass to receive the flow wastewater and / or landfill leachate and to promote growth of biological flocs and an impregnation subsystem to receive a flow of biomass and a predetermined amount of GAC reactivation waste product and to blend the biomass with the GAC reactivation waste product to form GAC reactivation waste product-impregnated biological flocs. The at least one impregnation subsystem outputs a flow of GAC reactivation waste product-impregnated biological flocs to the bioreactor such that the GAC reactivation waste product-impregnated biological flocs in the bioreactor adsorb to and remove a majority of the PFAS from the flow of wastewater and / or landfill leachate and the bioreactor outputs a flow of GAC reactivation waste product-impregnated biological flocs having a majority of the PFAS adsorbed thereto and wastewater and / or landfill leachate having a majority of the PFAS removed. The system also includes at least one secondary clarifier coupled to the bioreactor which separates the GAC reactivation waste product-impregnated biological flocs having a majority of the PFAS adsorbed thereto from the wastewater and / or landfill leachate having a majority of the PFAS removed and produces a flow the treated wastewater and / or landfill leachate having a majority of the PFAS removed.

The invention discloses saturated activated carbon hydrothermal alkali regeneration equipment and a regeneration method, and relates to the technical field of activated carbon regeneration. The saturated activated carbon hydrothermal alkali regeneration equipment comprises a regeneration reaction kettle. The regeneration reaction kettle comprises a kettle body, a filter screen and a heating device. The kettle body is provided with a containing cavity which can be used for containing regenerated alkali liquor. The filter screen is arranged in the containing cavity and divides the containing cavity into a heating cavity and a regeneration cavity. The filter screen can prevent granular activated carbon from entering the heating cavity. The heating device is arranged in the heating cavity and is used for heating the regenerated alkali liquor in the accommodating cavity. The scheme is beneficial for preventing the activated carbon from being in direct contact with a high-temperature heating device in the regeneration process, and is beneficial for avoiding reduction of the adsorption performance of the regenerated activated carbon due to high-temperature damage of the activated carbon.

The invention provides an extraction method of aloe polysaccharide, and belongs to the technical field of extraction of chemical components of aloe. The preparation method comprises the following steps: peeling aloe vera, dicing, soaking in cold water, stirring and crushing to form aloe juice; further heating the aloe juice to homogenize the aloe juice; filtering to remove crude fibers after homogenization, adding granular active carbon into the filtrate for decoloration, filtering to obtain a clear solution, adding ammonia water into the solution, and adjusting the pH value to be alkaline; continuously heating and concentrating the obtained clear solution; adding ethanol into the concentrated solution, adding an ammonium chloride coagulant, standing and precipitating; and centrifugally separating the obtained mixture with the precipitate, and washing and drying the obtained precipitate to obtain the aloe polysaccharide. Compared with a traditional extraction process, the aloe polysaccharide extraction method has the advantages that the process flow is simple, the process condition control operability is high, and the extraction rate of the aloe polysaccharide in the separation process is high. An experiment result shows that the extraction rate of the aloe polysaccharide is up to 11.23% and is obviously higher than that of the traditional extraction process.

The invention provides a preparation method of a monatomic iron-loaded granular active carbon composite material, which comprises the following steps: S1, mixing zinc salt and water to obtain a solution A, and impregnating active carbon granules in the solution A; s2, mixing 2-methylimidazole with water to obtain a solution B, adding the solution B into the mixed system obtained in the step S1 for reaction, and aging to obtain impregnated activated carbon; s3, calcining the impregnated activated carbon, and sequentially performing acid pickling, cleaning and drying to obtain acid-pickled primary calcined activated carbon; and S4, dipping the acid-washed primary calcined activated carbon with a ferric salt solution or a ferrous salt solution, and calcining to obtain the monatomic iron-loaded granular activated carbon composite material. The monatomic iron-loaded granular active carbon composite material provided by the invention can be used for catalyzing peroxymonosulfate to generate active oxygen species, and refractory organic matters in sewage / wastewater are efficiently degraded and removed through an advanced oxidation effect.

This invention relates to the technical field of industrial wastewater treatment equipment, specifically an integrated pretreatment device for coking wastewater reuse. It includes an integrated housing, internally divided into a hardening reaction zone, a coagulation and flocculation zone, an inclined tube sedimentation zone, and a COD deep removal zone. The hardening reaction zone is equipped with a first-stage cyclone mixer and a lime slurry dosing loop to achieve hydraulic mixing and hardening removal. The coagulation and flocculation zone features alternating downflow and upflow baffles, working in conjunction with polyaluminum chloride and polyacrylamide dosing loops to complete baffled coagulation. The inclined tube sedimentation zone contains hexagonal honeycomb inclined tubes and a sawtooth overflow weir. The COD deep removal zone is filled with a granular activated carbon packing layer, with a perforated air distribution pipe at the bottom. Each reaction zone has a pyramidal sludge collection hopper and a pneumatically controlled sludge discharge pipeline at the bottom. This invention features high integration, eliminates the need for an electric agitator, utilizes hydraulic mixing and baffles to extend the reaction path, allows for activated carbon regeneration via air washing, and ensures reliable operation.

This invention relates to the fields of environmental and chemical technology, specifically to a nitrogen-modified activated carbon adsorbent material, its preparation method, and its applications. The invention employs an ammonium chloride solution impregnation method combined with high-temperature activation under a nitrogen inert atmosphere to modify the surface of pretreated granular activated carbon, increasing the content of basic groups on the activated carbon surface, thus preparing a nitrogen-modified activated carbon adsorbent material. Experimental results show that the prepared nitrogen-modified activated carbon exhibits high adsorption efficiency for carboxylic acid drug pollutants such as naproxen, ibuprofen, and diclofenac. The preparation conditions of this invention are mild, the operation steps are simple, the required reagents are inexpensive, and the safety is relatively high, making it suitable for the treatment of drinking water, sewage, and medical wastewater.

The invention relates to a composite slow-release carbon source with enhanced durability. The composite slow-release carbon source comprises the following components in percentage by mass: 5-10% of granular activated carbon with pores filled with PBAT, 30-40% of corncob and 50-65% of PBAT. The invention relates to a preparation method of a composite slow-release carbon source with enhanced durability. The preparation method comprises the following steps: uniformly mixing granular activated carbon with pores filled with PBAT, corncobs and PBAT in proportion; carrying out hot press molding on the mixture by adopting a press vulcanizer; and cooling and taking out to obtain the reinforced durability composite slow-release carbon source. The invention relates to an application of a reinforced durability composite slow-release carbon source in sewage treatment of a constructed wetland. The method has the beneficial effects that the service life can reach 2-3 years, the press vulcanizer fixes the raw materials in a high-temperature and high-pressure physical mode, an adhesive does not need to be additionally added, the compressive strength and durability are improved, meanwhile, pollution of an additive to the constructed wetland is avoided, and the denitrification requirement of the constructed wetland can be met.

The present invention relates to the method for efficient removal of phenolic compounds from wastewater generated from petroleum industry. The method is two-step process. The first step is a pre-treatment process which operates through adsorption-based separation using granular activated carbon. The wastewater in this step is allowed to pass through a column packed with granular activated carbon. In the second step, the pretreated wastewater is subjected to membrane-based treatment. The present invention also relates to the design of a special membrane for effective removal of phenolic compounds from waste water. The membrane formulation includes polysulfone as the main polymeric matrix and carbon dots coated powdered activated carbon as the additive which acts as the active agent for the removal of phenolic compounds. The membranes are designed in two different types, viz., (i) flat sheet and (ii) hollow fiber. The membrane-based separation using the flat sheet membranes can be done with the help of a dead-end filtration set up. In case of hollow fiber membranes, a cylindrical membrane module with a large number of hollow fiber membranes is designed. The membranes are reusable with excellent separation efficiency. The membrane module has proper feed inlet, outlet for permeates and outlet for retentates. This present invention provides removal of ~99% phenolic compounds from petroleum industry wastewater.

This invention discloses a hydrothermal alkali regeneration device and method for saturated activated carbon, relating to the field of activated carbon regeneration technology. The hydrothermal alkali regeneration device for saturated activated carbon includes a regeneration reactor. The regeneration reactor includes a reactor body, a filter screen, and a heating device. The reactor body has a receiving cavity for containing regeneration alkali solution. The filter screen is disposed within the receiving cavity, dividing it into a heating cavity and a regeneration cavity. The filter screen prevents granular activated carbon from entering the heating cavity. The heating device is disposed within the heating cavity and is used to heat the regeneration alkali solution within the receiving cavity. This design helps prevent the activated carbon from directly contacting the high-temperature heating device during regeneration, and helps avoid damage to the activated carbon due to high temperatures, thus reducing the adsorption performance of the regenerated activated carbon.

A device for selectively removing a perfluorinated compound includes an adsorption electrooxidation tank, including a reaction unit having a plurality of electrodes and granular activated carbon, configured to oxidize and decompose a perfluorinated compound in raw water through adsorption and electrooxidation; a power supply device configured to supply power to the adsorption electrooxidation tank; and a head adjustment pipe unit configured to maintain a water level within the reaction unit at a height greater than or equal to a reaction height of the electrodes.

The utility model relates to the technical field of garbage treatment equipment, in particular to a deodorizing garbage leachate collecting and conveying mechanism and a deodorizing garbage leachate treatment mechanism, which comprise a deodorizing box, sliding grooves are arranged on the front surface of the deodorizing box, a lock frame is slidably connected to the inner side of each sliding groove, and a deodorizing drawer is slidably connected to the front surface of the deodorizing box between the sliding grooves. The inner sides of the deodorization drawers are provided with separation nets, the number of the deodorization drawers is three, and activated aluminum oxide, zeolite molecular sieves and granular activated carbon are installed in the three deodorization drawers respectively; the gas deodorization mechanism comprises a box body which is located at the top of the deodorization box and fixed through bolts, a lock groove is formed in the front face of the box body, and a fixing frame is slidably connected to the inner side of the lock groove, so that the landfill leachate collecting and conveying mechanism can comprehensively purify multi-component stink of leachate and can also directionally collect and centrally treat dissipated smell; therefore, the deodorization effect is improved, the requirements for environment-friendly emission and on-site peculiar smell control are met, and a worker can replace the filter material conveniently.

The application discloses a columnar particle activated carbon preparation raw material processing method and relates to the technical field of flue gas purification in the metallurgical industry. The method comprises the following steps: S1, coal powder preparation: selecting coking coal, semi-coke, anthracite and undersize material, feeding the coking coal, semi-coke, anthracite and undersize material into a grinding machine for grinding, and mixing the coking coal, semi-coke, anthracite and undersize material according to a ratio of 30:50:10:10; S2, water mist mixing treatment of the coal powder: adding the coal powder to a mixed barrel through a raw coal inlet, and mixing water mist and the coal powder according to a certain ratio from a cutting and mixing device through a water mist system to obtain mixed coal powder; S3, secondary mixing of the coal powder: adding a solid powder adhesive to the mixed coal powder through an adhesive feeding port in the cutting and mixing device for stirring and mixing; and S4, discharging pre-extrusion: feeding the secondary mixed coal material from the cutting and mixing device to a pre-extrusion degassing device for pre-extrusion. The method avoids uneven mixing, reduces dust dispersion and effectively avoids dust storm, and improves the yield and quality of activated carbon production.