1035results about How to "Improve adsorption efficiency" patented technology

The invention discloses an ecological pontoon device and method for removing heavy metal in a water body, and relates to the technical field of sewage treatment.The ecological pontoon device comprises an overwater moving platform, a power propeller, a self-cruising module assembly, a heavy metal ion removing assembly and a control system, and the power propeller is installed at the bottom of the overwater moving platform; the self-cruising module assembly is mounted on the water mobile platform; the heavy metal ion removal assembly comprises an acrylic square groove formed in the water moving platform, ecological filler filled in the acrylic square groove and a micro diaphragm water pump installed between the acrylic square groove and the water moving platform, and the micro diaphragm water pump is suitable for pumping water from the lake into the acrylic square groove. The water is filtered by the ecological filler and is pumped back to the lake body again; the control system is electrically connected with the power propeller and the self-cruise module assembly. According to the method, heavy metal ions in the water body can be effectively removed, and the efficiency can be remarkably improved while the cost is reduced.

The invention relates to the technical field of waste gas treatment, in particular to automatic temperature control type waste gas adsorption equipment for preparing an emulsifier, the automatic temperature control type waste gas adsorption equipment comprises a filter box, a gas inlet and a gas outlet, a plurality of filter screen frames are arranged in the filter box, and the filter screen frames are filled with granular activated carbon; a feeding pipe and a discharging pipe are respectively arranged at the top and the bottom of the filter screen frame; a collecting tank is arranged at the bottom of the filter box; a material distributing mechanism is arranged at the top of the filtering box; by arranging the collecting tank, the material distributing mechanism and the material lifting assembly, dynamic flowing of activated carbon in the filter screen frame is achieved, and when activated carbon in a local area reaches a saturated state, the activated carbon is moved to the collecting tank through the material discharging pipe and then lifted to the top of the filter box through the material lifting assembly; by means of the mode, local saturation is avoided, the overall adsorption efficiency is improved, and the service life of the activated carbon is prolonged.

The invention discloses an acetic anhydride production waste gas neutralization treatment device and method, and relates to the technical field of waste gas neutralization treatment.The acetic anhydride production waste gas neutralization treatment device comprises a treatment tank, a gas inlet pipe is fixedly installed at the bottom of the treatment tank, gas holes are formed in the surface of the gas inlet pipe, and a gas outlet pipe is fixedly installed at the top of the treatment tank; the waste gas neutralizing device is arranged in the treatment tank, and the waste gas neutralizing device comprises a motor, a connecting pipe, a fixing frame, a water spraying pipe, a reciprocating screw rod, a threaded plate, a fixing rod, an elastic telescopic rod, an activated carbon plate, a long rod, a universal wheel and an elastic telescopic scraper plate; the reciprocating lead screw rotates to drive the elastic telescopic rod to rotate, the elastic telescopic rod rotates to drive the activated carbon plate to rotate, through rotation of the activated carbon plate, the plate face can make uniform contact with pollutants in waste gas, saturation and aging of a local area are avoided, and the adsorption efficiency of activated carbon is improved.

The invention relates to an airflow-mechanical seed sowing device suitable for pasture and a mixed sowing method. The seed-metering device comprises negative-pressure seed-metering devices (1), and the two negative-pressure seed-metering devices (1) are coaxially fixed to the two sides of a gradually-extending screw groove type seed-metering device (2) to form a seed-metering device assembly; the mixed seeding box (3) is fixedly arranged at the upper part of the seeding device assembly and is used for supplying seeds to the negative-pressure seeding device (1) and the gradually extending screw groove type seeding device (2); and the seed conveying device (4) is fixedly arranged at the lower part of the seed metering device assembly and is used for mixing the gramineous forage grass seeds and the leguminous forage grass seeds and then sowing. By applying the seed-metering device, mixed seed metering of gramineous forage grass seeds and leguminous forage grass seeds can be realized, and seed blocking is prevented.

The invention provides an amine low-water-content absorbent for capturing carbon dioxide and application of the amine low-water-content absorbent. The amine low-water absorbent comprises, by mass, 20%-50% of an absorbent main agent, 35%-70% of an auxiliary solvent and 2%-20% of water, and the range of a solvent effect factor delta of the amine low-water absorbent is 0.28-0.32. According to the method, the composition of the water-less absorbent is screened and optimized through a solvent effect factor formula, the amine water-less absorbent which is easy to desorb, low in regeneration energy consumption and low in viscosity characteristic is obtained, and wide application of the amine water-less absorbent in a carbon capture technology is promoted.

The method comprises the following steps: (1) putting 1-vinyl imidazole into a flask containing N, N-dimethylformamide and D314 type resin, adding an initiator, carrying out a grafting reaction under the action of the initiator, and obtaining imidazolyl anion exchange resin after the reaction is finished; (2) pre-treating the imidazolyl anion exchange resin, and then adsorbing a rhenium-containing solution to be treated by adopting the pre-treated imidazolyl anion exchange resin; and (3) washing the imidazolyl anion exchange resin subjected to saturated adsorption in the step (2) by using ultrapure water, and then analyzing by using ammonia water to obtain a high-purity rhenium-containing solution. According to the method, the imidazolyl anion exchange resin is synthesized, the imidazolyl anion exchange resin has excellent selective adsorption capacity on rhenate ions, and efficient separation of rhenium and other impurities can be achieved when the imidazolyl anion exchange resin is applied to the rhenium-containing solution.

The invention discloses a waste gas treatment device for petroleum coke production, and relates to the technical field of waste gas treatment devices. Comprising supporting legs; the treatment box is fixedly connected to the supporting legs, an air inlet pipe is arranged on the upper side of the treatment box, an air outlet pipe is arranged on the lower side of the treatment box, a grid plate is installed in the treatment box, and activated carbon is arranged on the grid plate; and the two cleaning plates are symmetrically distributed and slidably connected to the interior of the treatment box, the symmetrically distributed cleaning plates are in contact fit, and the cleaning plates are used for cleaning activated carbon on the inner surface layer of the treatment box. The upper-layer activated carbon is pushed to two sides through back-to-back movement of the symmetrically-distributed cleaning plates, so that the part of activated carbon is separated from the rest of activated carbon, and then waste gas can penetrate through the activated carbon layer at a normal speed, so that the adsorption efficiency of the activated carbon is improved, and meanwhile, the air pressure in the treatment box and the air inlet pipe can be gradually recovered to an initial state; the stability of the treatment box is improved.

The embodiment of the utility model provides a nitrogen making machine, which relates to the technical field of nitrogen making equipment, and comprises a PSA (Pressure Swing Adsorption) nitrogen making machine, the PSA nitrogen making machine comprises a pipeline system and two adsorption towers with consistent specifications, sealing plates are fixed at the top ends in the adsorption towers, and rotating holes are formed in the tops of the sealing plates and the tops of the adsorption towers. When the adsorption tower of the nitrogen making machine performs adsorption work, the servo motor drives the output shaft of the reduction gear box to rotate, so that the screw rod obtains relatively large twisting force, and the screw rod enables a molecular sieve to enter the middle cylinder and then be discharged from the middle cylinder in a screw transmission manner, so that the molecular sieve circularly flows in the adsorption tower, and the adsorption efficiency is improved. The molecular sieves are arranged in the adsorption tower, so that airflow entering the adsorption tower can be in uniform contact with the molecular sieves, the phenomenon of local saturation is avoided, and the turbulent flow effect can be started through the flowing molecular sieves, so that the retention time of the airflow in the adsorption tower is prolonged, and the adsorption efficiency is improved.

The invention discloses a preparation method of sandwich type immunomagnetic beads with high thermal stability, which comprises the following steps: by taking polystyrene microspheres as a template, introducing oil-phase Fe3O4 nanoparticles into the polystyrene microspheres through a swelling method, and then carrying out hydrolytic condensation reaction on the surface of a microsphere assembly by utilizing n-octyltrimethoxysilane OTMS to obtain the sandwich type immunomagnetic beads with high thermal stability. The preparation method comprises the following steps: carrying out surface amination modification on a silicon dioxide thin layer which is grown by hydrolysis of tetraethoxysilane TEOS to realize coating of an outermost organic shell layer, carrying out surface amination modification, and carrying out cross-linking on 1, 4-butanediol diglycidyl ether and erythritol on the surface to form an epoxy polymer layer so as to obtain the sandwich-type immunomagnetic bead with a cross-linked epoxy polymer layer introduced to the outer layer. According to the epoxy group modification process on the surface of the magnetic bead, a direct cross-linking modification process is adopted, so that the operation steps are simplified, and the obtained epoxy group magnetic bead is ensured to show excellent biocompatibility. In addition, the method omits the tedious process of functional group activation, and allows direct coupling with the antibody, thereby greatly improving the efficiency and convenience of the experiment.

The invention discloses application of a magnetic nano composite material as an adsorbent in removal of organic dye in water, and belongs to the technical field of application of composite materials, the magnetic nano composite material (one of Fe3O4-coated TAPT-OMePDA or Fe3O4-coated TAPT-TFPDA) as the adsorbent adsorbs the organic dye in water, the adsorption capacity of Congo red (CR) reaches up to 1603.54 mg / g and 1968.83 mg / g, and the adsorption capacity of the magnetic nano composite material (one of Fe3O4-coated TAPT-OMePDA or Fe3O4-coated TAPT-TFPDA) as the adsorbent adsorbs the organic dye in water. The adsorption of the two adsorbents to the CR accords with a quasi-secondary kinetic model and a Langmuir isotherm model, and belongs to single-layer chemical adsorption. Compared with an adsorbent in the prior art, the Fe3O4 (at) TAPT-OMePDA and the Fe3O4 (at) TAPT-TFPDA have the advantages that the porosity is high, the adsorption efficiency is high, the selectivity is good, and the repeated utilization rate is good.

The invention relates to the field of automobile roofs, and particularly discloses a low-odor dry ceiling and a manufacturing method thereof. The invention discloses a low-odor dry ceiling and a manufacturing method thereof. The low-odor dry ceiling comprises a non-woven fabric, a first chopped glass fiber layer, a first adsorption bonding layer, a first hot melt adhesive film layer, a polyurethane foam layer, a second chopped glass fiber layer, a second adsorption bonding layer, a second hot melt adhesive film layer and a fabric layer which are sequentially connected, each of the first adsorption bonding layer and the second adsorption bonding layer comprises high-density polyethylene powder and an adsorbent, the addition amount of the adsorbent is 15-25wt% of that of the high-density polyethylene powder, the adsorbent is silicon dioxide aerogel modified composite activated carbon, and the composite activated carbon comprises microporous activated carbon and mesoporous activated carbon in a mass ratio of (2.56-3.12): (1.12-2.05); in addition, the preparation method disclosed by the invention has the advantage of reducing odor and VOC (Volatile Organic Compounds) in the production and use processes of the automobile roof.

The invention relates to the technical field of flue gas purification and discloses a flue gas low-temperature adsorption, regeneration and purification system for realizing return balance of nitrogen oxides, the flue gas low-temperature adsorption, regeneration and purification system comprises a boiler, an adsorption and regeneration device and a regeneration rich gas circulating pipe, the boiler comprises a boiler body and a flue, and a hearth is arranged in the boiler body; the flue is communicated with the hearth to discharge smoke in the hearth, and the hearth is provided with a first combustion area with the temperature larger than or equal to 700 DEG C. The adsorption regeneration equipment is connected with the flue of the boiler. The inlet end of the regeneration rich gas circulating pipe is connected with the flue gas adsorption regeneration equipment, and the outlet end of the regeneration rich gas circulating pipe is communicated with the first combustion area of the hearth, so that the regeneration rich gas is conveyed into the first combustion area of the hearth. According to the flue gas low-temperature adsorption, regeneration and purification system for realizing the return balance of the nitrogen oxides, disclosed by the embodiment of the invention, the content of NOx in the system cannot be continuously increased, the NOx balance is realized, the regeneration rich gas treatment process is simple, the cost is low, and the boiler runs safely.

The invention belongs to the technical field of environmental treatment, and discloses a nano RuAg / heterojunction MoO3 / TiO2 composite catalyst as well as a preparation method and application thereof, and the nano RuAg / heterojunction MoO3 / TiO2 composite catalyst is prepared by compounding mesoporous TiO2 with microporous MoO3 to form heterojunction MoO3 / TiO2 and then compounding the heterojunction MoO3 / TiO2 with a RuAg alloy. The nano RuAg / MoO3 / T iO2 has a mesoporous-microporous gradient structure, has a large specific surface area, and has good adsorption performance and high catalytic degradation performance on VOCs (Volatile Organic Compounds). According to the present invention, the composite catalyst can effectively degrade the VOCs while adsorbing the VOCs, such that the adsorption efficiency and the treatment effect of the molecular sieve on the VOCs are substantially improved, the integration of the adsorption and the degradation is achieved, and the VOCs treatment process flow is simplified.

The invention discloses three-dimensional hydrophobic modified activated carbon, which is characterized in that hydrophobic carbon chains are grafted inside and outside activated carbon pores, and the hydrophobic carbon chains are trichlorosilane with different carbon chain lengths. The invention also discloses a preparation method of the three-dimensional hydrophobic modified activated carbon, and the preparation method comprises the following steps: (1) pretreatment: the activated carbon is firstly placed in distilled water for ultrasonic cleaning for 5-10 min, then soaked in a pretreatment activation solution for 5-10 min, and then placed in a drying oven for drying, and the pretreatment activation solution is an ammonia water solution with the pH value of 8-9; (2) three-dimensional modification: taking 5-10 parts by weight of a modifier, dropwise adding the modifier into 20-50 parts by weight of a solvent to obtain a modifier solution, soaking 10-15 parts by weight of pretreated activated carbon into the modifier solution, sealing the whole reaction system, and immediately soaking the reaction system in an ultrasonic environment for 2-4 hours; and (3) post-treatment: cleaning the impregnated activated carbon with a solvent, and carrying out vacuum drying in a vacuum drying oven at 100-150 DEG C for 5-12 hours to obtain the three-dimensional hydrophobic modified activated carbon.

The invention discloses a fly ash-based adsorbent as well as a preparation method and application thereof, and belongs to the technical field of adsorbent materials. The fly ash-based adsorbent is prepared from the following raw materials: modified fly ash, modified lignin, activated carbon, polyethylene glycol polyvinyl alcohol grafted copolymer, titanate and metal oxide. The coal ash is subjected to ball milling and acid modification treatment, and a surfactant is introduced, so that the adsorption sites and the adsorption efficiency of the coal ash are increased. Through the synergistic effect of the raw materials, the prepared fly ash-based adsorbent can efficiently adsorb fluorine ions in wastewater, and the fluorine ion removal rate can reach 99% after adsorption is performed for 30 min.

The machining wastewater treatment equipment is connected with a wastewater input pipeline and comprises a three-phase separation device, an evaporation device, a filtering device and a concentrated solution collection device which are sequentially connected, the wastewater input pipeline is connected with the three-phase separation device, and the three-phase separation device is used for carrying out oil-water separation on wastewater; the evaporation device comprises a low-temperature evaporator and a cleaning barrel; the filtering device comprises a ceramic membrane filter and a molecular sieve COD (Chemical Oxygen Demand) filter; the ceramic membrane filter is used for removing water-soluble floating oil in distilled water; the molecular sieve COD filter is used for filtering the filtered wastewater, and clear water is discharged up to the standard or collected for reuse. The invention develops a brand-new treatment method for machining wastewater, and a brand-new machining wastewater treatment process is formed by combining three-phase separation, evaporation, ceramic membrane filtration, molecular sieve filtration and an anti-pollution membrane; the method is a full-physical process, does not need to add any medicament, and is more environment-friendly.

The invention relates to the technical field of soil improvement materials, and provides a soil heavy metal pollution repairing agent based on biomass power plant ash, which mainly comprises surface modified porous biomass power plant ash, polymer modified bentonite, a soil modified repairing agent and clay minerals. The surface modified porous biomass power plant ash is obtained through gamma-aminopropyltriethoxysilane and humic acid modified porous biomass power plant ash clustering, and the polymer modified bentonite is bentonite modified by acrylic acid and sodium carboxymethyl cellulose through a polymerization reaction. The preparation method comprises the steps of pretreatment of biomass power plant ash, liquid nitrogen freezing, freeze drying, porous structure formation, surface modification and the like. The components are mixed, granulated and molded, so that the obtained remediation agent can effectively reduce the bio-availability of heavy metals in soil, reduce the heavy metal absorption of crops and improve the soil environment quality.

The utility model discloses a formaldehyde purification rate detection device for diatom ooze, which relates to the technical field of formaldehyde adsorption detection and comprises a detection box, a displacement unit is arranged in the detection box, a formaldehyde detector, a material vibrating unit and a buffer unit are mounted on the displacement unit, and a placement frame is mounted on the buffer unit. And the placing frame is in threaded connection with a bolt and is in sliding connection with a material placing box. The formaldehyde detection device has the beneficial effects that the positions of a material placing box and a formaldehyde detector in the detection box are adjusted through a lifting mechanism, a first mounting frame, a first screw rod, a first motor, a second mounting frame, a second motor, a second screw rod and a placing frame, so that materials in the material placing box can absorb formaldehyde at different positions in the detection box; the formaldehyde adsorption efficiency is improved, the adsorption time is shortened, different positions in the detection box are detected through the formaldehyde detector, and the detection accuracy and efficiency are effectively improved.

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The utility model provides a lithium battery material deironing machine, relates to deironing equipment technical field, including device body, a plurality of magnetic bar and drive mechanism, the inside of device body is provided with work chamber, work chamber passes through vertically set division plate and forms adsorption area and deironing area, on the division plate is provided with a plurality of first through-hole, a plurality of second through holes are formed in the two side faces, parallel to the partition plate, of the device body, magnetic bar scraping rings are arranged in the second through holes, the second through holes correspond to the first through holes one to one, a feeding port is formed in the top of the device body, and a discharging port and an iron discharging port are formed in the bottom of the device body. The adsorption area is communicated with the feeding port and the discharging port, the iron removing area is communicated with the iron discharging port, the multiple magnetic bars penetrate through the first through hole and the second through hole, and the driving mechanism drives the multiple magnetic bars to do reciprocating motion in the working cavity in the axial direction of the magnetic bars. According to the utility model, scrap iron adsorbed on the magnetic bar can be automatically removed, and the working efficiency is improved.

The invention discloses a method for recovering and liquefying carbon dioxide in natural gas, and relates to the technical field of natural gas processing. According to the device, the working table, the multi-stage absorption mechanism, the self-regeneration type alternate adsorption mechanism and the linkage part are matched to complete recovery and liquefaction of carbon dioxide in natural gas, and the linkage part is in transmission connection between the self-regeneration type alternate adsorption mechanism and the stirring and foaming integrated unit. Multiple reactions of hydrogen sulfide in natural gas are achieved, the removal effect is improved, the service life of an adsorption material is prolonged through the design of step-by-step saturation replacement of a sodium bicarbonate solution, the frequent replacement requirement is reduced, the solution can be dynamically replaced, and the continuity of the treatment process is kept. Through up-down alternate operation of the molecular sieves, water vapor adsorption and synchronous regeneration are realized, molecular sieve saturation is avoided, continuous and efficient natural gas treatment is ensured, and the overall treatment effect is improved.

The invention discloses continuous coating equipment and a coating method, belongs to the technical field of coating, and solves the problem of inconsistent distribution of coating materials due to non-uniform temperature distribution of a heating source when the heating source of the existing equipment performs thermal radiation evaporation on the coating materials, the equipment comprises an equipment main body, a continuous coating mechanism and a base material placing mechanism, the equipment main body comprises an equipment base, a coating chamber, an access door body and a lofting door body; the continuous coating mechanism comprises a target material assembly, a heating disc group and an auxiliary coating assembly; the device is provided with the auxiliary film coating assembly, the auxiliary film coating assembly is composed of the auxiliary motor and the synchronous linkage part, the technical means that the rotating tubular target material and the reciprocating heating disc set cooperate with each other is adopted, stable shearing force is formed on the released film coating material, and therefore the film coating material evaporated on the base material can be evenly dispersed on the surface of the base material; and therefore, a tight film layer is formed by combining with the base material, and the coating quality of the base material is improved.

The invention belongs to the technical field of environmental protection equipment, and particularly discloses a zeolite rotating wheel for treating styrene-containing organic waste gas. The zeolite rotating wheel comprises an anti-polymerization wheel core, a VOCs wheel core and a connecting shaft; the anti-inhibition wheel core is provided with a porous channel structure penetrating front and back, and an anti-inhibition molecular sieve is loaded on the inner wall of the channel; the VOCs wheel core is attached to the rear portion of the anti-polymerization wheel core and is provided with a porous channel structure penetrating front and back, a zeolite molecular sieve is loaded on the inner wall of the channel, and the connecting shaft penetrates through the anti-polymerization wheel core and the VOCs wheel core to connect the anti-polymerization wheel core and the VOCs wheel core in series and fixedly connect the anti-polymerization wheel core and the VOCs wheel core. According to the present invention, the efficient adsorption and concentration of the easily-polymerized styrene component and the conventional non-methane total hydrocarbon can be achieved, the requirements of the chemical industry, the plastic industry, the printing industry, the coating industry and other industries on the styrene-containing and non-methane total hydrocarbon-containing waste gas working condition treatment are met, the purification effect of the styrene-containing organic waste gas is substantially improved, and the service life of the equipment is substantially prolonged.

The invention discloses a chemical modification method for improving heavy metal adsorption performance of loofah sponge, which comprises the following steps: (1) carrying out carboxyl improvement on loofah sponge pretreated by alkali liquor, loading nano aluminum oxide particles on the surface, and introducing double bonds while realizing composite modification on the loofah sponge to obtain an Al2O3-loofah sponge composite material; and (2) cross-linking and grafting 4-vinylpyridine through double bonds of the Al2O3-loofah sponge composite material, and simultaneously realizing cross-linking modification and functional modification of the loofah sponge. The loofah sponge is modified in two steps, the modification method is simple to operate, and the effects of functional modification, compound modification and cross-linking modification on the loofah sponge can be realized at the same time, so that the adsorption efficiency and capacity of the loofah sponge on heavy metal ions are remarkably improved.

The invention discloses an organic solvent recovery device. The device comprises a pretreatment mechanism, an adsorption mechanism, a steam furnace and the like. The pretreatment mechanism is provided with a filter and a cooler for primarily treating a solvent; the adsorption mechanism is composed of a spiral activated carbon plate, a central electrode and an interlayer electrode, the adsorption process of a solvent is optimized through an electric field, and the service cycle of an adsorption material is prolonged. A vacuum adsorption pump is further arranged in the adsorption mechanism, and the adsorption effect of solvent steam is enhanced by generating a vacuum environment. In addition, the device is further provided with a reversible power supply, reverse regeneration of the adsorption material can be achieved, and the replacement frequency is reduced. The steam furnace is connected with the adsorption mechanism, and solvent recovery is conducted through steam heating. And the rear end of the device is connected with a chimney discharge system to ensure that waste gas discharge meets environmental protection requirements. Through the double adsorption mechanisms and the innovative electrode design, the recovery efficiency is remarkably improved, the operation and maintenance cost is reduced, the environmental protection standard is met, and high economic benefits and social benefits are achieved.

The utility model provides a filtering adsorber, which relates to the technical field of medical sample collection and comprises a liquid bag, a filtering adsorption tube and an adsorption body, the liquid bag is used for collecting and storing detected liquid; an upper end inlet of the filtering adsorption pipe is communicated with a liquid outlet in the bottom of the liquid bag; a plurality of liquid flow channels are arranged in the filtering adsorption pipe; and the plurality of adsorption bodies are respectively filled in the plurality of liquid flow channels, and are used for adsorbing and capturing cells in the detected liquid when the detected liquid flows through the liquid flow channels. The filtering adsorber further comprises a connecting seat frame, and the connecting seat frame is detachably connected to an outlet in the lower end of the filtering adsorption pipe, connected with the adsorption body and used for pulling the adsorption body out of the liquid flow channel through the connecting seat frame. The filtering adsorber provided by the utility model is high in filtering speed and high in adsorption efficiency, and cells on the adsorbers can be washed and separated more quickly after a plurality of adsorbers are taken out, so that the separation efficiency is improved.

The invention discloses a preparation method of a nanofiber membrane capable of adsorbing various perfluorinated and polyfluoroalkyl substances, which comprises the following steps of: obtaining a nanofiber membrane spun by mixing quaternized chitosan and polyvinyl alcohol by adopting an electrostatic spinning and glutaraldehyde crosslinking method, and directly immersing the nanofiber membrane into environmental water for use; short-chain perfluorocarboxylic acid, long-chain perfluorocarboxylic acid, short-chain perfluorosulfonic acid, long-chain perfluorosulfonic acid and perfluoroalkyl ether carboxylic acid in tap water, surface water, underground water, domestic sewage, industrial sewage, agricultural sewage or medical wastewater can be efficiently and simultaneously adsorbed and removed; various types of perfluoro and polyfluoroalkyl substances such as perfluoro nonoxybenzene sulfonates and chlorinated polyfluoroether sulfonates can be selected from various types of perfluoro and polyfluoroalkyl substances. And after adsorption removal is completed, taking out the wastewater from the environmental water to complete solid-liquid separation. Compared with an existing adsorbent, the adsorbent has the advantages that more types of perfluorinated and polyfluoroalkyl substances can be adsorbed and removed at the same time, the adsorption and removal efficiency on short-chain perfluorinated substances is higher, and the applicable environment water matrix is wider.

The invention relates to coal powdered activated carbon for waste incineration and a preparation method thereof, and belongs to the technical field of activated carbon. The preparation method comprises the following steps: carbonizing anthracite in a nitrogen atmosphere, sequentially carrying out physical activation in a carbon dioxide atmosphere, dipping in a potassium hydroxide solution and then carrying out chemical activation in a manner of combining physical activation and chemical activation, and carrying out acid pickling after each activation to remove ash so as to obtain activated carbon with developed mesopores. The preparation method comprises the following steps: adding an ionic liquid obtained from 1-vinyl imidazole and 3-chloropropyltriethoxysilane under the action of N <-> and Cl <->, carrying out condensation of hydroxyl and ethyoxyl on activated carbon, carrying out surface modification, modifying alkenyl and imidazole groups, and finally adding vinylpyridine to carry out double-bond polymerization so as to obtain the modified activated carbon. According to the preparation method, a pyridine group polymer with low polymerization degree is formed, so that the coal-based powdered activated carbon for waste incineration is prepared, and the coal-based powdered activated carbon has a very excellent adsorption effect on dioxin and is high in adsorption efficiency and strong in pertinence.

The invention provides a process for regenerating base oil from waste lubricating oil, and belongs to the technical field of base oil processing and production. The preparation process comprises the following steps: preparing biomass activated carbon based on peanut shells; preparing modified biomass activated carbon; pretreatment and extraction of waste lubricating oil; and carrying out molecular distillation and adsorption purification on the oil. Through the process steps of pretreatment, reduced pressure distillation, extraction, molecular distillation, adsorption purification and flash evaporation degassing, the base oil can be produced by using most of logarithms of the waste lubricating oil in society, so that the comprehensive utilization of the waste lubricating oil is realized, and the traditional clay refining process is eliminated in the production process; the problem of secondary pollution caused by waste clay generated in regeneration of the waste lubricating oil is thoroughly solved, and hazardous waste pollution is reduced.

The invention belongs to the technical field of metal adsorption material preparation, and particularly relates to a preparation method of an attapulgite composite cellulose hydrogel material, which comprises the following steps: (1) uniformly dispersing acid modified attapulgite in water, then adding sodium alginate and polyvinyl alcohol, heating and stirring; (2) adding sodium carboxymethyl cellulose, and continuously stirring to obtain a mixed solution; and (3) injecting the mixed solution into a mold by using an injector, freeze-thawing, freeze-drying, immersing into a CaCl2 solution, cross-linking, washing for multiple times, and freeze-drying again to obtain the attapulgite composite cellulose hydrogel material. Sodium alginate, polyvinyl alcohol, sodium carboxymethyl cellulose and acid modified attapulgite in a proper proportion are matched with a multiple freeze drying method to construct a three-dimensional structure with multiple chemical adsorption, high specific surface area, long diffusion channel and abundant pores, so that the adsorption efficiency and the adsorption capacity of the composite material are improved, and various application requirements are met.