36results about How to "Facilitate adsorption removal" patented technology

The invention discloses a core-shell type magnetic mesoporous nano-microsphere as well as a preparation method and application thereof. The method comprises the following steps: (1) moistening, solidifying and carbonizing a FeOx@nSiO2@mSiO2 template in a carbon-source solution to prepare a mesoporous carbon / FeOx@nSiO2@mSiO2 composite, wherein the FeOx@nSiO2@mSiO2 template is a core-shell type mesoporous nano-microsphere taking a silicon dioxide coated iron oxide as a core and mesoporous silicon dioxide as a shell, and the iron oxide is ferroferric oxide or ferric oxide; and (2) performing a reaction between the mesoporous carbon / FeOx@nSiO2@mSiO2 composite and sodium hydroxide to prepare the core-shell type magnetic mesoporous nano-microsphere. The core-shell type magnetic mesoporous nano-microsphere prepared in the invention has the advantages of quickness, convenience, large adsorption volume and less dosage in adsorbing and removing microcystin in water, so that a quick and convenient way is provided for water pollutant removal.

The invention discloses a water treatment method for adsorbing and removing Tl<+> and / or Cd2<+> by producing nanometer manganese dioxide in situ, relating to a water treatment method of thallium and / or cadmium-containing source water and solving the problems of complex process, high running cost and low removing efficiency of thallium and / or cadmium existing in the conventional water treatment technology specific to thallium and / or cadmium-polluted source water. The method comprises the following steps of: adding permanganate and sodium thiosulfate into Tl<+> and / or Cd2<+>-containing water; stirring to obtain a mixed solution; adding a coagulant; and performing conventional water treatment. Nanometer manganese dioxide which has a large specific surface area and high electronegativity and is easy for precipitation separation is produced in situ by making permanganate react with sodium thiosulfate, so that low-concentration Tl<+> and / or Cd2<+> in water can be removed effectively and specifications in the national Sanitary Standard for Drinking Water are met. The method has the advantages of high removing efficiency, simple process, flexibility and convenience for operation, no change of the original treatment process of a water plant, low running cost and the like, and can be applied to emergency treatment of a water pollution event.

The invention relates to a strain of achromobacter xylosoxidans GD03 with oxidation effect and methylation effect on inorganic trivalent arsenic, and a preliminary application in repair of seedling-stage paddy rice arsenic poisoning. The strain was preserved in China General Microbiological Culture Collection Center (CGMCC) at Jan 26th, 2013, and has a preservation number of CGMCC No. 8512. The achromobacter xylosoxidans of the invention is characterized in that the achromobacter xylosoxidans GD03 with oxidation effect and methylation effect on inorganic trivalent arsenic is obtained by enrichment and separation from arsenic-polluted simulated rice field soil. The strain can oxidize inorganic trivalent arsenic in arsenic-polluted environment into pentavalent arsenic, has methylation effect, greatly reduces the toxicity of trivalent arsenic with high toxicity in the environment, and enhances the adsorbable removing property of arsenic pollutants.

The invention discloses a high-calcium-aluminum slag ball. The high-calcium-aluminum slag ball comprises metallic aluminum (Al), aluminum oxide (Al2O3), silicon dioxide (SiO2), calcium fluoride (CaF2), calcium oxide (CaO), water (H2O) and other inevitable impurities. The component of the slag ball comprises, by weight, 48 parts to 52 parts of the metallic aluminum, 9 parts to 9.9 parts of aluminum oxide, 4 parts to 5 parts of silicon dioxide, 5 parts to 10 parts of calcium fluoride, 20 parts to 24.9 parts of calcium oxide and 0.2 part to 0.5 part of water. When low-carbon steel is smelted, in the steel tapping process, a certain number of high-calcium-aluminum slag balls are added, and therefore, the soluble aluminum proportion in molten steel can be greatly improved, and the contents of ferric oxide and manganese oxide are reduced, and cleanness of the molten steel is improved; and by means of the high-calcium-aluminum slag balls, the deoxidization effect is good, steel slag fluidity is improved, the slag remanufacturing requirement of the refining process is met, and meanwhile, the production cost can be reduced.

Relating to the technical field of nitrogen-containing sewage treatment, the invention provides a carbon nanotube / hydrotalcite material for removal of nitrate nitrogen from water and a preparation method. The method includes: conducting in-situ generation of a lanthanum-doped hydrotalcite layer on the pipe wall of a multiwalled carbon nanotube by coprecipitation, and employing a cationic surfactant cetylpyridine bromide for surface modification of the hydrotalcite layer, thus obtaining the carbon nanotube / hydrotalcite material for removal of nitrate nitrogen from water. According to the preparation method provided by the invention, hydrotalcite is loaded on the pipe wall of the multiwalled carbon nanotube, thus increasing the specific surface area of hydrotalcite and exposing more active sites, and rare earth metal lanthanum is also employed for doping, lanthanum undergoes complexing with NO3<-> to form a stable polyamine complex. Further, cetylpyridine bromide is employed for surfacemodification, thus reducing the electronegativity of the hydrotalcite surface, and providing more active sites for adsorption of NO3<->. Therefore, the carbon nanotube / hydrotalcite material has a goodremoval effect on nitrate nitrogen in water.

The invention provides a preparation method and an application of graphitized carbon with a large specific surface area. The preparation method comprises the following steps: loading a metal catalyston a carbon source precursor; and then loading potassium hydroxide, isolating air and raising the temperature for treatment, or putting the carbon source precursor loaded with the metal catalyst intoan atmosphere containing water vapor or carbon dioxide, raising the temperature for treatment, cooling the product, washing the product with acid and water, removing impurities such as silicon, the metal catalyst and alkali, and drying the product to obtain graphitized carbon with a large specific surface area. According to the preparation method, cheap and easily available metal salt is used as acatalyst precursor, and in the catalytic graphitization process, due to the existence of pore-forming agents such as potassium hydroxide, water vapor or carbon dioxide, graphitized carbon with a large specific surface area can be obtained. The graphitized carbon has strong hydrophobicity and strong affinity to organic matters, and can be used for efficiently adsorbing and removing organic pollutants and heavy metals in waste gas or wastewater, and meanwhile, the derivative graphene oxide can be used for efficiently adsorbing and removing heavy metals in water.

The invention discloses a method for adsorbing and removing phosphates from a water body by using zirconium oxide modified carbon nano tubes. The method comprises the following steps of: ultrasonically dispersing the pretreated carbon nano tubes into a zirconium oxide solution; modifying the carbon nano tubes with zirconium oxide by using a hydrothermal synthesis method to prepare the zirconium oxide modified carbon nano tubes; adding the zirconium oxide modified carbon nano tubes into a phosphorus water body, so as to adsorb and remove the phosphates from the water body. According to the method, the zirconium oxide modified carbon nano tube is used as an adsorbers for the first time and is applied to treatment of the phosphorus water body. The adsorber has a good effect of removing phosphates and is acid and alkali resistant; the adsorption time is short; the treatment condition is mild; and the treatment efficiency is high. The method creates good economical and environmental benefits when used for removing phosphates from a water body.

The invention discloses a ladle refining method which uses ultrasonic wave to improve dynamic conditions, and ultrasonic wave is input into molten steel to solve the problem of stirring dead zone in bottom blowing gas stirring. The invention includes the following contents: after the converter or electric furnace taps steel, pour the molten steel into the ladle, place the ladle in the refining station, start blowing argon gas at the bottom of the ladle to stir, add slagging and deoxidizing materials, and turn on the ultrasonic generator at the same time , input ultrasonic waves at the bottom and side walls of the ladle to stir the molten steel. The power of the ultrasonic is determined by the weight of the molten steel in the ladle. The ultrasonic power range is 5-500kW / ton of molten steel. The input time of the ultrasonic is the time taken for the ladle to finish refining. The invention can reduce the inclusion and gas content of molten steel, and significantly improve the ladle refining effect.

The invention relates to the technical field of electrolytic copper foil manufacturing and processing, in particular to electrolytic copper foil manufacturing and processing equipment. The electrolytic copper foil manufacturing and processing equipment comprises a bottom plate, a conveying mechanism, a water spraying mechanism, a brushing mechanism and a drying mechanism, and a winding mechanism is arranged in front of the drying mechanism. According to the electrolytic copper foil manufacturing and processing equipment, the water spraying mechanism sprays water from the position above a copper foil for cleaning, a cleaning brush is driven by a conveying belt on the brushing mechanism to brush the copper foil, the cleaning brush on the conveying belt continuously brushes the copper foil, the contact area between the cleaning brush and the copper foil is increased, impurities adhering to the copper foil can be effectively cleaned, and the phenomenon that the cleaning effect of the copper foil is poor is avoided; and meanwhile, the adopted drying mechanism can dry a sponge layer for wiping the copper foil, so that the sponge layer can effectively adsorb water stains on the copper foil, and the situation that the water stains are still remained when the copper foil is wound is avoided.

The invention discloses a rotary laminated scum adsorption device applied to sewage treatment. The invention belongs to the technical field of sewage treatment. The rotary laminated scum adsorption device applied to sewage treatment comprises a base and an aeration tank fixedly mounted on a base; the middle part of the inner end of the aeration tank is fixedly connected with a hollow cylinder; scum adsorption and filtration treatment is carried out before sewage is introduced into the aeration tank; the aeration treatment of the sewage is effectively prevented from being influenced by a largeamount of scum; a rotary laminated adsorption mechanism is used for carrying out scum treatment on the sewage in a filter cartridge; floating scum in the sewage can be easily and completely adsorbed and removed in the circumferential direction; the adsorption mechanism can ascend and descend in the vertical direction, technicians can replace and clean an adsorption net easily, the adsorption mechanism moving upwards drives a sealing ring to move upwards, and after the sealing ring is separated from a filter cavity in the bottom end of the filter cartridge, sewage with scum removed can be smoothly guided into the aeration tank for subsequent aeration treatment.

The invention relates to a method for preparing micropore activated carbon through semi-dried silaging straw. The method comprises the following steps of: (1) taking fresh plant straw, crushing the taken plant straw to 20-30mm, airing the crushed plant straw until the water content is 40-55%, and performing semi-dried silaging; (2) drying the semi-dried silaged straw to reach constant weight, performing crushing, and putting the crushed straw into phosphoric acid for impregnation; (3) putting the impregnated straw into a muffle furnace for carbonization activation, and performing cooling; and (4) performing washing with deionized water until the pH value is neutral, performing suction filtration, and performing drying so as to obtain the micropore activated carbon. According to the method disclosed by the invention, requirements for a semi-dried silaging technique adopted by the method are low, the operation is easy, the production technology is simple, the production cost is low, the prepared micropore activated carbon has many micropores which can reach 78.2%, the adsorptive property is good, acidic functional groups exist, and the adsorption and the removal of pollutants such as antibiotics and the like are facilitated.

The invention discloses a fire prevention and monitoring device for mountainous areas and belongs to the technical field of fire prevention monitoring. The fire prevention and monitoring device comprises a monitoring tower and an operation room fixedly connected to the monitoring tower. A wind speed and direction sensor and a windmill are mounted on the operation room; a lifting plate is fixedly connected to the side wall of one side of the monitoring tower; a tower body protection mechanism consisting of a tower bottom fireproof cover and a fireproof isolation layer is arranged at the bottomend part of the monitoring tower; the tower bottom fireproof cover and the fireproof isolation layer have a certain fireproof isolation effect on the tower body. An exhaust pipe arranged on an environment monitoring box is communicated with a blast protective cover arranged on a thermal imaging camera and air guided out from the environment monitoring box is guided out from the inner wall of the blast protective cover and a flow guide pipe and a heating mechanism are used for cooperation, so that a lens end face of the thermal imaging camera is effectively cooled or an icing layer and frost onthe lens end face are effectively removed through gas, and thus the thermal imaging camera is protected to a certain extent.

The invention discloses a tail gas treatment device for reducing pesticide production workshop tail gas Vocs, and relates to the technical field of waste gas treatment equipment.The tail gas treatment device comprises a pretreatment assembly, a concentration assembly and an absorption assembly, and the pretreatment assembly, the concentration assembly and the absorption assembly are connected in an end-to-end mode through pipelines to form a complete passage; waste gas firstly passes through the pretreatment assembly to be subjected to dust removal and impurity removal, the concentration assembly comprises a condensation box and a sub-rotating device, the sub-rotating device is rotationally arranged in the condensation box, the condensation box is provided with a pressurization pipe and a discharge pipe, and the pressurization pipe and the discharge pipe are connected with the sub-rotating device through a sealing connection mechanism. The motor is provided with a pressurizing mechanism used for driving the pressurizing pipe to pressurize and an intermittent rotating mechanism used for driving the sub-rotating device to change positions. The device can pressurize the tail gas in batches when the tail gas passes through the device, so that the gas concentration of Vocs is improved in a low-temperature and high-pressure environment, and the Vocs can be conveniently adsorbed and removed.

The invention discloses a power monitoring containing pile and an application method thereof, and belongs to the technical field of power monitoring equipment. According to the power monitoring containing pile and the application method thereof, through cooperation of a windmill, a linkage mechanism and an air storage mechanism, outside air is continuously guided into a monitoring control shell through an air inlet pipe, ventilation is enhanced, and the heat radiation effect is improved; meanwhile, wind energy is converted into electric energy, natural wind is effectively utilized for controlling power of monitoring equipment or other controllers of the equipment, and energy output is saved; in addition, an outer port of the air inlet pipe is filled with a water absorption ball, moisture adsorption and removal are carried out on guided-in air, it is effectively guaranteed that circulating air is dry air, and the situation that equipment elements are influenced by moisture is avoided toa certain degree; and the left side and the right side of the water absorption ball are coated with high-porosity cooling layers, when the temperature of outside air is too high, hot steam is precooled, liquefied and cooled, and some water drops formed by liquidation can fully adsorb and dry the water absorption ball.

The invention discloses a method for adsorbing and removing phosphate in water using zirconium oxide-modified carbon nanotubes. The pretreated carbon nanotubes are ultrasonically dispersed in a zirconium oxychloride solution, and a hydrothermal synthesis method is used to synthesize the carbon nanotubes. Modification of zirconium oxide is performed to prepare zirconium oxide-modified carbon nanotubes; the zirconium oxide-modified carbon nanotubes are added to the phosphate-containing water to adsorb and remove the phosphate in the water. This invention uses this material as an adsorbent for the first time and applies it to the treatment of phosphorus-containing water. The adsorbent shows good removal effect on phosphate, and the adsorbent is acid and alkali resistant, has short adsorption time, mild treatment conditions and high treatment efficiency. The invention has good economic and environmental benefits when applied to remove phosphate in water.

The invention relates to the technical field of furniture varnish baking, and discloses an environment-friendly varnish baking device for furniture production. According to the environment-friendly varnish baking device, a fixing plate is arranged in a varnish baking box, an infrared baking lamp is fixedly mounted on the inner side of the varnish baking box, a mounting frame is slidably mounted above the infrared baking lamp in the varnish baking box, a first electric telescopic rod is installed in the varnish baking box, a varnish baking frame is installed at the position, above the fixing plate, in the varnish baking box in a sliding mode, a varnish baking lamp is arranged in the varnish baking frame, an air cylinder is installed on the upper surface of the varnish baking box, an odor removing box is arranged on one side of the varnish baking box. Under the action of a second electric telescopic rod, a movable plate slides on a placement rod, so that furniture wood of different sizescan be placed, clamped and fixed, and the furniture wood is conveniently painted; and a rolling shaft makes contact with the surface of the wood and rolls, so that paint on the surface of the furniture wood can be more uniform, bubbles or protrusions are prevented from occurring, and the quality is prevented from being affected.

The invention belongs to the technical field of aquaculture, and particularly relates to a circulating type fish culture device. According to the circulating type fish culture device, a fish tank unit for culturing fishes and a sedimentation tank unit for circularly purifying water in the fish tank unit are used for removing suspended matters and bacteria in the culture wastewater and finally recycling the culture wastewater, meanwhile, a rain unit with a double-layer structure is arranged, the suspended matters in the discharged wastewater are preliminarily mixed and pass through holes with adjustable sizes, and large-particle suspended matters in the wastewater are crushed into the small-particle suspended matters in the mixing process, so that the adsorption removal in the sedimentation tank in the next step is facilitated. The device has the advantages that aquaculture water resources can be recycled, the wastewater discharged into the environment is reduced, ecological balance of the surrounding environment can be maintained, meanwhile, the device is reasonable and effective in structural arrangement, suspended pollutants in aquaculture wastewater are pretreated, filtration or the adsorption removal is facilitated, and the risk of blocking a filter is reduced.

The invention relates to the technical field of wastewater resource utilization, and discloses a method for preparing nano biochar spheres from syrup wastewater. A new way is provided for solving thetreatment problem and resource utilization of the syrup wastewater, the resource utilization of the syrup wastewater is realized, and the treatment cost of the syrup wastewater as sewage and the problem of environmental pollution are reduced. The method has the advantages of simple process, controllable process, no need of additional modification of new groups, and material saving and preparationcost reduction; meanwhile, the surfaces of the prepared nano biochar spheres have positive and negative potentials and have an amphoteric state, so that adsorption and removal of heavy metals, sulfonamide antibiotics and nitrosamine disinfection byproducts can be facilitated; the removal effect of the nano biochar spheres on anions and cations such as heavy metals, sulfonamide antibiotics and nitrosamine disinfection byproducts can be realized by regulating and controlling the pH value.

The invention relates to a method for treating sweet potato wastewater, which comprises the following steps: alkalifying sweet potato wastewater with sodium hydroxide, adding a flocculant polyaluminum chloride powder, stirring, adding a hydrogen peroxide solution, stirring, carrying out disinfection and sterilization on the wastewater by ozone generated by mass decomposition of hydrogen peroxide under the irradiation of ultraviolet light in sunlight or artificial ultraviolet light, inhibiting further mildewing and fermentation of the waste water and the waste residues, then adding polymer powder, stirring to form a flocculated state, adding pulverized coal, stirring and dispersing to accelerate flocculating settling, and compressing the volume of a precipitate. The technical scheme is adopted, so that disinfection and sterilization can be synchronously performed in the settling and purifying process of the waste water, and mildewing and fermentation of the waste water and the waste residues are inhibited; the traditional long-time precipitation treatment is not needed, the flocculent precipitation volume is not compressed, and the flocculent mud volume is reduced by 1 / 3.

According to the system for dredging the clogging of the goaf at the water inlet of the underground reservoir and reducing the salinity of the effluent, the carbon dioxide waste gas is input into the underground reservoir in a pulse mode and a continuous mode, so that the clogging area at the water inlet is dredged, the purification capacity of the underground reservoir on mine water is improved, and the salinity of the effluent of the reservoir is reduced. The system comprises: a carbon dioxide exhaust gas storage unit for providing carbon dioxide exhaust gas; the waste gas pulse conveying pipeline is connected between the carbon dioxide waste gas storage unit and the underground reservoir and used for conveying the carbon dioxide waste gas to the underground reservoir, and the gas outlet end of the waste gas pulse conveying pipeline extends into the underground reservoir and is located below the water inlet; and the pneumatic booster pump is connected with the waste gas pulse conveying pipeline and can output the carbon dioxide waste gas in the waste gas pulse conveying pipeline in a pulse manner.

The invention discloses a fire prevention and monitoring device for mountainous areas, which belongs to the technical field of fire prevention and monitoring. A fire prevention and monitoring device for mountainous areas includes a monitoring tower and an operating room fixedly connected to the monitoring tower. A wind speed and direction sensor and a windmill are installed, and a lifting plate is fixedly connected to one side wall of the monitoring tower, and a tower body protection mechanism composed of a tower bottom fireproof cover and a fireproof isolation layer is set at the bottom of the monitoring tower. The bottom fire cover and the fire isolation layer have a certain fire isolation effect on the tower body. By connecting the exhaust pipe on the environmental monitoring box with the blower shield on the thermal imaging camera, the air derived from the environmental monitoring box is The inner wall of the blast shield is led out, coordinated with the diversion tube and the heating mechanism, and effectively dissipates heat from the end face of the lens of the thermal imaging camera through gas or removes the icing layer and frost on the end face of the lens. The camera plays a protective role.

The invention discloses a preparation method of a globe artichoke extract, and the preparation method comprises the following steps: S1, carrying out double-frequency ultrasonic extraction on a globe artichoke raw material to prepare an extracting solution; s2, adding an adsorbent into the extracting solution prepared in the step S1 for reaction, carrying out solid-liquid separation, and collecting a liquid phase; s3, the liquid phase prepared in the step S2 is eluted through a polyamide chromatographic column, eluents are water and an ethanol water solution in sequence, and eluent is collected; wherein an extracting agent for double-frequency ultrasonic extraction in the step S1 is an acidic ethanol solution; the adsorbent in the step S2 is chitosan modified diatomite-activated carbon. The preparation process is simple and safe, the obtained globe artichoke extract is natural, healthy, pure in flavor, high in yield and low in preparation cost, and industrial production can be achieved.

The invention relates to the technical field of electrolytic copper foil manufacturing and processing, in particular to an electrolytic copper foil manufacturing and processing equipment, including a bottom plate, a transmission mechanism, a water spray mechanism, a scrubbing mechanism and a drying mechanism. A winding mechanism is arranged in front of the drying mechanism. The water spraying mechanism adopted in the present invention sprays water from above the copper foil for cleaning, and then the conveyor belt on the scrubbing mechanism drives the cleaning brush to scrub the copper foil, and the cleaning brush on the conveyor belt continuously cleans the copper foil. Scrubbing increases the contact area with the copper foil, which can effectively clean the impurities adhering to the copper foil, avoiding the phenomenon of poor cleaning effect of the copper foil, and the drying mechanism adopted at the same time can Wipe the sponge layer of the copper foil and dry it, so that the sponge layer can effectively absorb the water stains on the copper foil, and avoid the water stains remaining when the copper foil is wound.

The invention relates to the technical field of nitrogen-containing sewage treatment, and provides a carbon nanotube / hydrotalcite material and a preparation method for removing nitrate nitrogen in water. In this method, a lanthanum-doped hydrotalcite layer is formed in situ on the tube wall of a multi-walled carbon nanotube by a co-precipitation method, and the surface of the hydrotalcite layer is modified by a cationic surfactant cetylpyridinium bromide. A carbon nanotube / hydrotalcite material for the removal of nitrate nitrogen in water is obtained. In the preparation method of the present invention, the hydrotalcite is loaded on the tube wall of the multi-walled carbon nanotube, the specific surface area of ​​the hydrotalcite is increased, and more active sites are exposed, and the rare earth metal lanthanum is used for doping, and the lanthanum can with NO 3 ‑ complexation to form a stable polyamine complex, and further, the use of cetylpyridine bromide for surface modification can reduce the electronegativity of the hydrotalcite surface, which is NO 3 ‑ The adsorption provides more active sites, so it has a good removal effect on nitrate nitrogen in water.

The invention discloses a power monitoring containing pile and an application method thereof, and belongs to the technical field of power monitoring equipment. According to the power monitoring containing pile and the application method thereof, through cooperation of a windmill, a linkage mechanism and an air storage mechanism, outside air is continuously guided into a monitoring control shell through an air inlet pipe, ventilation is enhanced, and the heat radiation effect is improved; meanwhile, wind energy is converted into electric energy, natural wind is effectively utilized for controlling power of monitoring equipment or other controllers of the equipment, and energy output is saved; in addition, an outer port of the air inlet pipe is filled with a water absorption ball, moisture adsorption and removal are carried out on guided-in air, it is effectively guaranteed that circulating air is dry air, and the situation that equipment elements are influenced by moisture is avoided toa certain degree; and the left side and the right side of the water absorption ball are coated with high-porosity cooling layers, when the temperature of outside air is too high, hot steam is precooled, liquefied and cooled, and some water drops formed by liquidation can fully adsorb and dry the water absorption ball.

The invention belongs to the technical field of environmental adsorption materials, and discloses an environmentally friendly adsorption material and a preparation method for high-efficiency dephosphorization of pottery clay / pyrolulurite. The solid material is mixed with water and then air-dried, dried, sintered and cooled. The solid material includes: 80-90 parts by weight of pottery clay, 1-10 parts of pyrolusite and 1-10 parts of sodium silicate, based on the total amount of fixed materials, the mass ratio of solid material: water = 1:0.4-0.6. The adsorption material of the present invention is used for phosphorus removal and adsorption treatment of phosphorus-containing wastewater, and has good phosphorus removal performance, and the phosphorus adsorption capacity is 16.507mg / g; high-temperature burning makes it have good mechanical strength, which is beneficial to realize regeneration and reuse. At the same time, the suitable pH value range of the new adsorption material is wide, which can be widely used in the field of practical engineering, and has good social and economic benefits.

The invention discloses a sewage landscape reuse advanced treatment magnetic resin containing two quaternary ammonium sites and capable of synchronously removing nitrogen and phosphorus and a preparation method of the sewage landscape reuse advanced treatment magnetic resin. The magnetic resin is composed of a strong base anion exchange resin framework containing two quaternary ammonium salt active sites and magnetic particles wrapped in the strong base anion exchange resin framework. The preparation method comprises the following steps: uniformly mixing a quaternary ammonium salt with a cross-linking agent, a pore-foaming agent, an initiator and modified magnetic particles to form an oil phase, carrying out primary suspension polymerization in a water phase after uniform mixing, carrying out secondary polymerization after primary polymerization to obtain secondary copolymerized magnetic microspheres, and carrying out amination and alkylation reactions on ester groups on the secondary copolymerized magnetic microspheres in sequence to form quaternary ammonium salts. The preparation method comprises the following steps: carrying out a reaction on an epoxy group and an amine salt to obtain another quaternary ammonium salt, and finally carrying out a post-crosslinking reaction on a double bond on the other side of a benzene ring on a crosslinking agent to obtain the magnetic strong-basicity anion resin containing two quaternary ammonium sites, which can be used for removing nitrogen and phosphorus substances in actual secondary effluent so as to meet the nitrogen and phosphorus standards in urban sewage landscape utilization standards.