18 results about "Granular activated carbon" patented technology

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.

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 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.

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 application discloses a method for improving purity and yield of lactic acid in large-scale fermentation, and belongs to the technical field of lactic acid purification, and comprises the following steps: S1. alkali flocculation is performed on lactic acid fermentation liquor, and then filtration is performed; sulfuric acid is added into the obtained liquid phase, pH is adjusted to 1-2, and then re-filtration and rotary evaporation concentration are performed to obtain acidolysis concentrated liquor; S2. the acidolysis concentrated liquor is subjected to decolorization by using granular activated carbon to obtain lactic acid clear liquid; and S3. the lactic acid clear liquid is subjected to continuous ion exchange and concentration dehydration to obtain finished lactic acid. The application is suitable for a second-generation lactic acid fermentation system taking corn stalks, corn cobs and other lignocelluloses as raw materials, can solve the problems of large difficulty in impurity removal and low yield in large-scale production, effectively improves the purity and yield of lactic acid, and provides strong technical support for large-scale industrial production and high added-value application of lactic acid.

A device and a method for removing fats, oils and / or grease (“FOGs”) from water comprise a separator, wherein the separator removes the FOGs that separate from the water under gravity, and a filter wherein the filter removes the FOGs remaining in the water after the water has passed through the separator. The filter comprises several layers having different compositions suitable for removing FOGs from water, including a layer comprising granular activated carbon bonded together and wrapped in polyester.

The present application relates to the technical field of adsorbent, and discloses a composite adsorbent for removing vitamin E mineral oil and a preparation method thereof.The methoxy of a naphthyl cyclohexyl modified silane coupling agent is subjected to dealcohol condensation reaction with the silicon hydroxyl on the surface of coarse pore silica gel to realize covalent grafting, so that modified coarse pore silica gel is obtained; the terminal hydroxyl of a hydroxyalkyl modified mannich base monomer is subjected to esterification reaction with the carboxyl on the surface of carboxylated coconut shell granular activated carbon to realize covalent fixation, so that modified coconut shell granular activated carbon is obtained; the composite adsorbent for removing vitamin E mineral oil is formed by matching acidified attapulgite and silica sol adhesive; the composite adsorbent has excellent synergistic adsorption effect on MOSH and MOAH in vitamin E, and improves the recovery rate of vitamin E.

A device for selectively removing a perfluorinated compound may include 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 electrode.

This invention belongs to the field of resin tower technology, specifically relating to a device for extending the regeneration cycle of a chelating resin tower. It includes a tank with an inlet pipe and an outlet pipe at its upper and lower ends, respectively. Multiple baffles are located in the middle of the tank, with filter media placed on the upper surface of each baffle. A cleaning component is installed on the upper surface of each baffle. The cleaning component includes a spray pipe fixed inside the tank, located on the upper surface of the baffle, with a spraying element at its end. A rectangular plate is fixed to the tank, with a rectangular groove. A baffle slides within the rectangular groove. The baffle has several first water holes, and the baffle has second water holes. An electrically controlled telescopic rod is installed on the right side of the rectangular plate. The tank has a drain pipe corresponding to the baffle, and the drain pipe is equipped with an electrically controlled valve. This invention allows for the placement of various filter media, such as quartz, fiber balls, and granular activated carbon, on the baffles inside the tank, comprehensively optimizing the influent water quality, reducing the adsorption burden on the chelating resin, extending the regeneration cycle of the resin tower, and lowering operating costs.

The application discloses a low-temperature vacuum pump cold umbrella component forming and processing device and belongs to the technical field of low-temperature vacuum pumps. The low-temperature vacuum pump cold umbrella component forming and processing device comprises a cavity shell and a cold umbrella base arranged in the cavity shell. The cavity shell is internally provided with a lifting ring vertically moving up and down. The lifting ring is located outside the cold umbrella base. The inside of the lifting ring is symmetrically and slidably connected with arc-shaped blocks matched with the lifting ring. The surfaces of the two arc-shaped blocks are fixedly and jointly provided with a gear. The inner sides of the arc-shaped blocks are fixedly provided with a glue sprayer and an activated carbon sprayer respectively. The low-temperature vacuum pump cold umbrella component forming and processing device can automatically select granular activated carbons with different sizes to be covered and adhered according to the distance between the cold umbrella base and the glue sprayer, effectively prevents the activated carbon from sliding under the action of gravity when the adhesive property of the glue is not strong, solves the problem that the activated carbon is unevenly distributed on the surface of the cold umbrella base, and improves the processing quality of the low-temperature vacuum pump cold umbrella forming.

This utility model discloses a granular activated carbon regeneration tank, an internal collection pipe assembly, and a tank wall cooling structure. The collection pipe assembly replaces the original water cap fixing plate, making full use of the space in the lower end cap and reducing the overall height of the regeneration tank. The tank wall cooling structure reduces heat conduction to the tank wall by applying an insulation layer to the inner wall of the regeneration tank, and cools the tank wall by introducing cooling water through a cooling water coil installed outside the regeneration tank, thereby extending the service life of the regeneration tank.

The present application discloses to the technical field of boiler flue gas sampling, and relates to an industrial boiler flue gas activated carbon adsorption treatment structure capable of flue gas sampling. The structure comprises a pipeline assembly, and a sampling assembly is arranged in the pipeline assembly. The sampling assembly comprises a frame arranged in the pipeline assembly and a granular activated carbon layer arranged in the frame. When no flue gas sampling is performed, a plurality of sampling heads are embedded in the granular activated carbon layer in the frame. The granular activated carbon layer has an adsorption effect, which can adsorb dust, impurities and grease in the air to avoid blockage. In addition, when acidic flue gas is mixed with water vapor, an acidic corrosive solution is generated, which can buffer and isolate the sampling head, reduce the direct contact of the sampling head with the gas environment outside the granular activated carbon layer, and improve the service life of the sampling head.

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 provides a kind of high-temperature-resistant quartz tube processing's forming equipment, it is related to quartz tube processing equipment field, including heating box, the rear of heating box is equipped with centrifugal fan, the rear of heating box is provided with filter box, the input end of centrifugal fan is communicated with gas delivery pipe.The utility model generates stable negative pressure in gas delivery pipe after centrifugal fan starts, so that hot air flow carries dust and toxic gas orderly into filter box, and realizes the controllable collection of pollutant from source;Meanwhile, filter plate in filter box uses inertia to intercept dust, significantly reduces the dust concentration of processing area, effectively reduces respiratory disease risk, in addition, honeycomb activated carbon adsorption plate passes through porous structure, when the airflow containing benzene, formaldehyde and other toxic gases passes, adsorption is generated and stable complex is formed, its purification efficiency is significantly better than traditional granular activated carbon, so that the concentration of harmful substances such as formaldehyde in work space is far lower than occupational exposure limit.

Methods and systems of electrothermal fluorination, and more particularly, methods and systems of electrothermal fluorination for lithium recovery from brine salt. The electrothermal fluorination methods and systems to selectively fluorinate brine salts can use granular activated carbon (GAC)-sorbed aqueous film-forming foam (AFFF) as a fluorinating agent. During this process, GAC and PFAS in AFFF can be converted to graphene, while fluorine atoms can be effectively mineralized into metal fluorides. Followed by washing and flash distillation, lithium can be recovered from other alkali and alkaline earth metal cations in brine (Na+, Mg2+, K+, Ca2+) in the form of lithium fluoride, with a ~99% lithium purity and ~82% yield.

The application discloses a kind of waste special shape granular activated carbon processing method, to solve the technical problem of making special shape granular activated carbon as a kind of regenerative special shape granular activated carbon including columnar granular activated carbon again.It includes: waste special shape granular activated carbon is regenerated and handled;Waste special shape granular activated carbon after regeneration is handled and is crushed, and the crushing is used to crush waste special shape granular activated carbon after the regeneration into carbon powder;The carbon powder is mixed with liquid hole blocking agent to obtain first mixture;The first mixture is mixed with adhesive to obtain second mixture;The second mixture is injected into special shape granular material forming mold and is extruded from special shape granular material forming mold under the action of press machine to obtain special shape granular material;Special shape granular material is sequentially dried, carbonized and activated in order to obtain regenerative special shape granular activated carbon.