157results about How to "Large adsorption capacity" patented technology

The invention discloses a granular alcohol-based bactericidal preservative liquid dehydrating agent. The key point of the technical scheme of the invention is that the granular alcohol-based bactericidal preservative liquid dehydrating agent is composed of red bentonite, dolomite attapulgite clay, bauxite, sulfuric acid, high-viscosity attapulgite clay powder and 3A molecular sieve raw powder. The red bentonite, the dolomite attapulgite clay and the bauxite are mixed for an acidizing treatment, then mixed and stirred with the high-viscosity attapulgite clay powder and the 3A molecular sieve raw powder to be tabletted, roasted and crushed together, and then packaged to form the granular alcohol-based bactericidal preservative liquid dehydrating agent. When the granular alcohol-based bactericidal preservative liquid dehydrating agent is placed in an alcohol-based bactericidal preservative liquid dehydrating device for dehydration, the granular alcohol-based bactericidal preservative liquid dehydrating agent only adsorbs moisture rather than effective bactericidal preservative components in the alcohol-based bactericidal preservative liquid, so that the practical effect of the alcohol-based bactericidal preservative liquid is improved greatly; and the dehydrating agent is suitable for dehydration of alcohol-based bactericidal preservative liquids and other alcohol products.

The invention discloses a preparation method of a magnetic chitosan composite adsorption material. The preparation method of the magnetic chitosan composite adsorption material comprises the steps that ferriferrous oxide magnetic nanoparticles are prepared through a chemical coprecipitation method, silicon dioxide wraps the surface of ferriferrous oxide through a hydrolysis reaction of tetraethyl orthosilicate, glutaraldehyde serves as a cross-linking agent to enable chitosan and ferriferrous oxide wrapped by silicon dioxide to generate a cross-linking reaction to obtain magnetic chitosan, and finally the magnetic chitosan composite adsorption material is obtained by modifying the magnetic chitosan through quaternary ammonium salt. The composite material has the excellent dispersibility, thermostability and weak magnetism, the composite material has the advantages of being high in adsorption capacity, good in adsorption effect, high in adsorption speed, easy to separate and the like to anionic dye in wastewater, and the composite material has a good application prospect in wastewater treatment of the anionic dye.

The present invention discloses a resin base adsorbing agent with high selectivity for heavy metal and its preparation method, belonging to the field of macroporous resin. The main structure composition of this adsorbing agent includes: (1), basic skeleton, it is a macroporous polystyrene skeleton; (2), functional group bond-linked on the skeleton is acid group or low-polar group; and (3), effective component of functional material fixedly-loaded on the inner surface of skeleton is Zr(HPO4)2. Said invention also provides its preparation method and concrete steps.

The invention belongs to the technical field of gas separation and purification and provides an apparatus of purifying CO2 in natural gas through a low-temperature pressure swing adsorption (PSA) technology and a method thereof. In the invention, by means of cooling capacity generated in liquefaction of natural gas, a low-temperature environment is formed to control the temperature within the range of -70 - 25 DEG C, and meanwhile, through change of pressure within the range of 0-10 MPa, an absorption process of CO2 at a low temperature with the solid absorbent is achieved. By means of increase of the temperature and reduction of the pressure of the low-temperature PSA natural gas purifying system, the CO2 in the solid absorbent is desorbed, thereby regenerating the absorbent and finally achieving the object of continuously purifying the natural gas and regenerating the absorbent. The solid absorbent can be regenerated through increase of temperature and change of pressure, thereby recycling the solid absorbent and further reducing the use of the absorbent. The apparatus is simple and available in operation process. The process can complete purification of natural gas and achieve adsorption, enrichment and capture of CO2, and also has significant practical significance in environment protection.

The invention relates to a chitosan nano fibrous membrane adsorbing material and a preparation method thereof. The preparation method for the chitosan nano fibrous membrane adsorbing material comprises the steps as follows: chitosan spinning liquid is added into electrostatic spinning equipment; a chitosan nano fibrous membrane is prepared by an electrostatic spinning method; and the obtained chitosan nano fibrous membrane is soaked into alkaline liquid, and then is cleaned and dried to obtain the chitosan nano fibrous membrane adsorbing material. The average diameter of the nano fiber for forming the adsorbing material is 10-600nm; and the porosity of the adsorbing material is 15-60 percent. The adsorbing material has the characteristics of biocompatibility, biodegradability, hydrophilicity, low cost, large adsorption capacity and broad material sources. The adsorbing material can effectively absorb heavy metal ions comprising Cu (II), Hg (II), Cd (II) and Pb (II).

The invention relates to a preparation method of a crosslinked chitosan-manganese dioxide composite adsorbing material. The method comprises the following steps that chitosan is dissolved in acetic acid to form chitosan gel liquid; the chitosan gel liquid is dropwise added to a mixed solution of an NaOH solution and alcohol to form a chitosan gel sphere; the chitosan gel sphere is placed in a glutaraldehyde solution; a crosslinked chitosan particle is produced by shaking; the crosslinked chitosan particle is soaked in a potassium permanganate solution which is boiled; excessive HC1 solution is dropwise added to form a manganese dioxide loaded crosslinked chitosan particle; the particle is filtered and washed with water to be neutral; and the absorbing material is obtained. The crosslinked chitosan-manganese dioxide composite adsorbent is high in adsorption capacity and adsorption efficiency, good in oxidative degradation ability and high in acid resistance, and facilitates solid-liquid separation.

The invention belongs to the field of inorganic laminated material preparation and the field of water purification, and relates to a method for removing perchlorate in water. The method includes steps: firstly, adding adsorbent into perchlorate-contained water for adsorption; and secondly, intercepting the adsorbent in water for separation treatment after adsorption is complete. The method is mild in condition, low in production cost and recyclable, raw materials are easily obtainable, adjustment of solution pH is not needed, and removal rate of the perchlorate can reach 70% in 30 minutes and reach 90% after 6 hours. The method for removing perchlorate in water has fine application prospect.

A water treatment agent is made by adding blended powder of tourmaline and magnetic chitosan microsphere into sodium alginate and polyvinyl alcohol for resolving and uniform mixing and then curing. The magnetic chitosan microsphere is made by taking superparamagnetic ferroferric oxide, 1 to 10wt percent of chitosan acetic acid solution, liquid paraffin, Span-80 and glutaraldehyde solution as reaction mass and adopting an emulsion crosslinking method, the mass ratio of the superparamagnetic ferroferric oxide and chitosan acetic acid solution is 1 to 1-10, the volume ratio of liquid paraffin and Span-80 is 10-100 to 1, the volume ratio of chitosan acetic acid solution of superparamagnetic ferroferric oxide and paraffin and Span 80 is 1 to 1-10, and the volume ratio of the mixed liquor of the chitosan acetic acid solution and the paraffin, and the glutaraldehyde solution is 5-50 to 1. The water treatment agent disclosed by the invention ensures that removal ratio of volatile phenol in water can reach 80 to 90 percent and the removal ratio of chromium in water can reach 93 percent, and meanwhile has the advantages of high adsorption capacity, high purification efficiency, low cost, renewability, innocuity, zero contamination to environment, and the like.

The invention relates to a coking wastewater deep treatment system combing ozone catalytic oxidation and electro-adsorption and belongs to the technical field of coking wastewater treatment. The system comprises an ozone catalytic oxidation reactor, an ozone generator, an oxygen tank, a gas-liquid separator, a filter, an electro-adsorption device, a recycling water tank, a concentrated water tank, a water generating electromagnetic valve, a concentrated water electromagnetic valve and a connection pipeline; an outlet of coking wastewater is sequentially connected with the ozone catalytic oxidation reactor, the gas-liquid separator, the filter and the electro-adsorption device, and a water outlet of the electro-adsorption device is connected with the recycling water tank through the water generating electromagnetic valve and meanwhile connected with the concentrated water tank through the concentrated water electromagnetic valve; an inlet of the ozone generator is connected with the oxygen tank, and an outlet of the ozone generator is connected with a gas inlet of the ozone catalytic oxidation reactor; the ozone catalytic oxidation reactor is connected with a direct current power source. According to the coking wastewater deep treatment system, coking wastewater deep treatment and recycling can be achieved by combining ozone catalytic oxidation and electro-adsorption, and up-to-standard release of concentrated water is further guaranteed.

A method for preparing embedded lanthanum oxide composite resin mainly includes the steps that strong basicity anion exchange resin is added into a lanthanum nitrate solution, the mixture is fully stirred for reaction and then filtered, the resin is placed in a sodium hydroxide solution, reacts at the constant temperature, and then is filtered and washed to be neutral, and the processed resin is treated in a thermal mode to obtain the embedded lanthanum oxide composite resin. The method for dephosphorization by using the embedded lanthanum oxide composite resin includes the steps that the composite resin is placed in a glass adsorption column, and waste water polluted by phosphate flows downstream through the static bed column adsorption device filled with the adsorption material, wherein the temperature of the waste water is controlled to be 10 DEG C-50 DEG C, and the pH is controlled to be 2-10; when the concentration of the phosphate in outlet water is larger than 0.5 mg/L, a mixed solution of sodium hydroxide and sodium chloride is adopted for desorption, and the desorbed adsorption material can be recycled. When a polluted water body contains a great deal of co-existing ions such as sulfate radical, chloride ions and nitrate, the concentration of the phosphate in the phosphorus waste water treated through the lanthanum oxide composite resin can be reduced below the town sewage discharge standard, and secondary pollution is avoided.

The invention relates to a method for extraction separation of dissoluble organic matters in fresh water. The conventional method for extraction of organic matters in fresh water has a low extraction rate and does not realize extraction and separation according to required molecular weight. The method is characterized by comprising filtration impurity removal, adsorption separation, rotary evaporation condensation, dialysis grading and freeze drying. The method has large adsorption quantity, a fast sample loading rate and a high elution rate, realizes separation according to molecular weight and produces dissoluble organic matters in different molecular weight scopes.

The invention relates to a preparation method for a metal-organic framework nanoparticle material with a mesoporous structure. The method comprises the steps of: dissolving a cationic template molecule and an anionic ligand molecule able to undergo electrostatic pairing with the cationic template molecule in an organic solvent, adding a soluble metal inorganic salt and a micromolecular organic-ligand molecule able to achieve coordination bonding with the metal ion so as to undergo solvothermal reaction under a proper temperature, thus obtaining the metal-organic framework nanoparticle with a mesoporous structure. The metal-organic framework nano-material prepared by the invention has an aperture in a mesoporous range, has high specific surface area and large adsorption capacity, and can be used in drug delivery systems, bioanalysis and detection, film fixation and other fields.

The invention aims at solving the problem that the research on the desulfurization and denitrification adsorbent in the prior art is less, and provides a flue gas desulfurization and denitrification adsorbent and a preparation and usage method thereof. The adsorbent is a deep eutectic solvent generated by reacting tetrabutyl ammonium bromide with ethylene glycol according to the molar ratio of 1:(2-100); furthermore, the adsorbent is an iron-based deep eutectic solvent generated by adding ferrous chloride into the deep eutectic solvent and reacting, the content of the ferrous chloride in the deep eutectic solvent is 0.1-1mol/L. The adsorbent has adsorption selectivity, can simultaneously adsorb SO2 and Nox in flue gas and the adsorption quantity is large, so that the desulfurization and denitrification cost can be lowered, no secondary pollution exists, and the deep eutectic solvent adsorbent can also realize repeated adsorption-desorption cyclic regeneration.

The invention relates to the field of metal organic framework materials, and provides a metal organic framework material and a preparation method and application thereof. The chemical formula of the metal organic framework material provided by the invention is [Cu(dps)2(SiF6)].6H2O or [Cu(dps)2(GeF6)].6H2O, wherein the dps is bipyridine sulfur. The metal organic framework material provided by theinvention contains fluorine adsorption sites, so that the metal organic framework material can adsorb a large amount of acetylene, but has very small adsorption capacity on other gases with similar sizes, such as ethylene, carbon dioxide and ethane, so that the metal organic framework material provided by the invention can be used for high-selectivity adsorption of acetylene. Results of embodiments show that the adsorption capacity of the metal organic framework material provided by the invention to acetylene under the same condition is far greater than that to ethylene, carbon dioxide and ethane.

The invention belongs to the field of gasoline desulfurization and discloses an adsorbent for gasoline desulfurization, and a preparation method and application thereof in the gasoline desulfurization. The adsorbent is obtained by the steps of: sufficiently grinding cuprous chloride and aluminum-doped mesoporous silica molecular sieve, and roasting in inert atmosphere. When the adsorbent makes contact with the sulfurous gasoline, the desulfurization of the gasoline is realized by using an adsorption method. The adsorbent has good adsorption effect and can maintain better desulfurization effect after being regenerated.

The invention relates to a surfactant composition for intensifying oil extraction and a preparation method thereof, and is mainly used for solving the problems that the existing surfactant is poor in flushing efficiency in three oil extraction processes, and meanwhile, a drive system contains an inorganic base, resulting in damage to a stratum and an oil well, corrosion to equipment and pipeline, and demulsification difficulty. The problems are well solved by adopting the technical scheme of the surfactant composition and the preparation method thereof, wherein the surfactant composition comprises a cationic surfactant and an anion-nonionic surfactant; the cationic surfactant is selected from at least one of a quaternary ammonium salt or quaternary amine alkali; the anion-nonionic surfactant is any one of fatty alcohol-polyoxyethylene/polyoxypropylene ether carboxylate and sulfonate; the molar ratio of the cationic surfactant to the anion-nonionic surfactant is 1:0.01 to 1:100. The surfactant composition can be applied to the oilfield oil extraction intensifying process.

The removing method for micro iodine ion in brine comprises: in acid condition, using one or more of H2O2, NaClO, FeCl3, and NaClO3 as oxidant to oxygenate the I- into I2; using one or more of active carbon, molecular sieve, carclazyte and diatomite as sorbent for adsorption. This invention reduces the iodine-content from 0. 1-5mg/L to less than 0. 05mg/L and meets the production request (less than 0. 2mg/L) for NaOH with ion film method.

The invention discloses a shale fracturing fluid forced imbibition and flowback experiment method under the condition of containing adsorbed gas. The method comprises the steps of: connecting crack development, crack underdevelopment and base block shale in series to form a shale multi-scale reservoir seepage space; putting the sample into a long rock core holder; and injecting methane gas into aclamper; after pore pressure and methane adsorption balance are controlled through a rock core outlet end back-pressure valve, achieving forced imbibition of the fracturing fluid under the action of positive pressure difference of a rock core inlet end, enabling the outlet end to monitor methane gas replaced in the imbibition process of the fracturing fluid, and in the flowback stage, simulating the flowback process of the fracturing fluid by setting the pressure difference through the rock core inlet end back-pressure valve. In the process, the core resistance is monitored in real time, and the imbibition and retention amount of the fracturing fluid in the shale multi-scale reservoir seepage space are reflected through the resistance. According to the method, the imbibition and flowback processes of the fracturing fluid in the shale multi-scale reservoir seepage space under the condition of containing the adsorbed gas can be truly simulated, and references are provided for optimizingthe soaking time and formulating a reasonable flowback system after the shale gas well is fractured.

The invention pertains to the technical field of chemical separation, in particular to an application of taking a sulfhydryl functionalization hollow silica microsphere as a mercury ion adsorbent. The functional hollow silica microsphere can effectively adsorb mercury ions in a solution and the adsorption capacity is far higher than that of other mercury ion adsorbents reported by present literature. The maximum capacity of the adsorbent obtained under the experimental condition is 3477mg/g. Moreover, under the condition of a pH value less than 7, the adsorption ability is not sensitive to acid number. For mercury containing solutions which is carried out adsorption by the adsorbent, the maximum adsorption rate reaches 99.96 percent and the concentration of residual solutions after adsorption is far lower than the discharge standard of China (0.05mg/L). Besides, the adsorbent has excellent regeneration ability.

The invention relates to an absorbent for removing and recovering liquid-phase mercury as well as a preparation method and using method thereof. According to the method, a material with high specific surface area and large pore volume is used as a carrier, and a sulfide or selenide nano absorbent is loaded on the carrier, so as to prepare an ion exchange nano mercury-removing absorbent with high adsorption capacity; a filter layer is prepared by adopting the nano mercury-removing absorbent to perform filtering processing on mercury ion contained waste liquid; the mercury ions in the liquid phase are absorbed to the absorbent by exchanging metal ions and mercury ions on the material, so as to achieve the purpose of removing liquid-phase mercury. The absorbent has the characteristics of high adsorption capacity and quick adsorption rate, and is suitable for waste water mercury-removing processing for coal-fired flue gas, non-ferrous metal metallurgical off-gas and other mercury related industry.

The invention discloses a preparation method of an amino-functionalized porous CO2 adsorption material. The method comprises: pre-mixing a porous material with certain amino modifier and dispersant in a high speed stirring mixer; sending the pre-mixed porous material to a high-speed ultrafine pulverizer for full shearing, pulverization, mixing and dispersion to obtain a uniformly-mixed porous composite material; and drying the prepared porous composite material in an oven and allowing the modifier to fully react with the porous composite material to obtain the amino-functionalized porous adsorption material. During the preparation process, a large amount of organic solvent is not required, and environmental pollution is not caused. The preparation method is simple and eco-friendly, and is convenient to operate, low in manufacture cost and suitable for industrial production.

The invention relates to a preparation method of chelating resin for highly effective boron absorption, especially a preparation method of silica gel loaded polyhydroxyl chelating resin for highly effective boron removal. The method comprises reacting meglumine and silane coupling agent in inert organic solvent, generating meglumine modified silane coupling agent, making the meglumine modified silane coupling agent react with activated silica gel, and finally generating a silica gel loaded polyhydroxyl chelating resin for highly effective boron removal. Compared with the conventional macromolecule-based boron-removing chelating resin, the invention has simple and economical method, overcomes the detects in the present synthesis flow that the silica gel is dissolved for alkalinity of the reaction system is too high (pH more than 11) when surface modified halogen or silica gel of epoxide group reacts with meglumine to synthesize the silica gel loaded polyhydroxyl boron-removing chelating resin, or that the silica gel loaded polyhydroxyl boron-removing chelating resin cannot be synthesized for the nucleophilic substitution of halogen or epoxide group with meglumine cannot be carried out effectively when alkalinity of the reaction system is too low (pH less than 10).

The invention discloses a polyurethane foamed material for soil heavy mental ion adsorption. The polyurethane foamed material is obtained by using polyether polyol, polyisocyanates, a chelating reagent, a catalyst, a foam stabilizer and deionized water as raw materials and carrying out polymerization. The polyurethane foamed material has excellent physical and chemical properties as well as high surface area, can be used to absorb a plurality of heavy metal ions and has large adsorption capacity. In addition, the polyurethane foamed material is nontoxic, has advantages of no pollution, low cost and simple operation, and has good application value and popularization prospect.

The invention discloses a preparation method of an ionic liquid-loaded palm tree bark adsorbent. The preparation method is characterized by comprising the following steps: after drying and crushing, drying the crushed loofah sponge processed by virtue of sodium hydroxide and hydrogen peroxide, so as to obtain oxidized palm tree bark; adding the following components in a reactor in mass percentage concentration (the sum of the components is 100%), 63-75% of epoxy chloropropane and 10-18% of oxidized palm tree bark, carrying out constant temperature stirring and reaction for 40-60 minutes at 70+/-2 DEG C, after cooling, adding 4-12% of benzenetetracarboxylic anhydride and 3-8% of N-ethyl-3- methylpyridine tetrafluoroborate ionic liquid, carrying out constant temperature stirring and reaction for 24-30 hours at 50+/-2 DEG C, carrying out suction filtration after cooling, washing by virtue of deionized water until filtrate is neutral, washing by virtue of a small amount of ethanol, and drying in a vacuum drying oven at 50 DEG C, so as to obtain the ionic liquid-loaded palm tree bark adsorbent. The adsorbent has high adsorption capacity to triclosan, is excellent in physical, chemical and mechanical properties, strong in regeneration capacity and low in cost, can be repeatedly used and is environmentally friendly.

The invention discloses a method for removing tetracycline in wastewater by virtue of a magnetic composite adsorbent. The method comprises the following steps: adding a self-made magnetic composite adsorbent into wastewater containing tetracycline so as to react, wherein pH value of a reaction system is 3-7; and after the reaction is finished, separating and recycling the magnetic composite adsorbent from the wastewater under the action of an applied magnetic field, so as to finish the removal of tetracycline in the wastewater. The method has the beneficial effects that the adsorption capacity is large, the adsorption speed is high, tetracycline in the wastewater can be powerfully removed, and the adsorbent is easily separated and recycled.

The invention relates to a graphite powder-butyl rubber composite frozen gel oil absorption material and a preparation method thereof. The oil absorption material is crosslinked with butyl rubber under the action of S2Cl2 serving as a cross-linking agent to form a three-dimensional net porous gel material with intercommunicated pore structure, wherein the aperture is 20-50 microns; the thickness of the pore wall is 20-30 microns; the graphite powder is evenly dispersed into the three-dimensional net porous gel material; the mass of the graphite powder is 0.5-2% of that of butyl rubber; and the volume mass ratio of the cross-linking agent to butyl rubber is 6ml to 100g. The composite material disclosed by the invention is small in density, large in adsorption capacity and fast in adsorption speed, can absorb various oil products, can be repeatedly used by simple centrifuging or extruding treatment, effectively reduces the cost, and is a novel environment-friendly material. The composite frozen gel oil absorption material is wide in application, and can be used as a slow-release base material, a filter material and the like except for recovery of water oil spilling at sea or land and oily wastewater treatment.

The invention discloses a high-selectivity magnetic core-hollow porous molecular imprinting polymer satellite assembly applied to determining the residual quantity of trace macrolide antibiotics in animal-derived foods and a preparation method of the assembly. With mesoporous silicon as a sacrificial support template, methacrylic acid as a functional monomer and spiromycin as a template molecule,hollow porous molecular imprinting polymers (HPMIPs) are prepared by means of a thermal initiation polymerization method; ferroferric oxide magnetic nanoparticles (Fe3O4NPs) are prepared by means of asolvothermal method. By utilizing the self-polymerization properties of dopamine, polydopamine-coated ferroferric oxide magnetic nanoparticles (Fe3O4@polyDA) are prepared, the HPMIPs are grafted on the surfaces of the polydopamine-coated ferroferric oxide magnetic nanoparticles (Fe3O4@polyDA), synthesized magnetic hollow porous molecular imprinting polymers (Fe3O4@polyDA-HPMIPs) are obtained andserve as a magnetic dispersion solid phase extraction adsorbent, macrolide drugs are selectively enriched and separated, and in combination with HPLC-MS/MS detection, the effect is ideal. The preparedmaterial has the advantages of high affinity, high adsorption capacity, a good magnetic response effect and the like and has broad application prospects in the field of food detection and the like.

The present invention provides a fluorinated conjugated microporous polymer providing good absorption capacity for heavy metal ions in a water body, and a preparation method thereof. The fluorinated conjugated microporous polymer is prepared by respectively carrying out catalysis copolymerization on 1,3,5-trifluoro-2,4,6-triethynylbenzene or 1,3,5-triethynylbenzene, wherein the specific surface area is about 700-1000 m<2>/g, the contact angle of the surface water is 155-167 DEG, the polymer provides selective absorption ability (only absorbs heavy metal ions, and does not absorb water) for heavy metal ions in the water body, the re-use performance is good, and the absorption capacity on heavy metal ions such as Cu<2+>, Ni<2+> and Cd<2+> is 0.07-0.18 mmol/g. According to the present invention, the material preparation process route is simple, the operations are easy, advantages of high absorption capability, high selectivity, good dynamics absorption property, good re-use property and the like are provided when the material is applied for heavy metal ion absorption in the water body, and the polymer has potential application values in the fields of crude oil leakage treatment, industrial inorganic wastewater treatment, liquid/liquid separation, water treatment and the like.

The invention discloses a heavy metal adsorbent prepared by cactus. The heavy metal adsorbent is characterized by being prepared from the following raw materials in parts by weight: 50-60 parts of cactuses, 10-15 parts of sawdust, 5-10 parts of shell powder, 3-5 parts of soya-bean cake powder, 2-4 parts of lotus powder, 1-2 parts of guar gum, 1-2 parts of carboxymethyl chitosan, 0.3-0.5 part of tannin, 2-4 parts of calcium chloride, 0.1-0.2 part of potassium sorbate, 4-6 parts of auxiliaries and 40-60 parts of water. The heavy metal adsorbent disclosed by the invention has the characteristics of being strong in heavy metal bonding and adsorbing capacity, large in adsorbing capacity, safe and environmentally friendly, non-toxic and harmless, is free of secondary pollution to the environment in a wastewater treatment process, and strong in practicability.

The invention discloses a method for efficiently removing galaxolide in water, and belongs to the field of environmental protection water treatment. The method includes the steps: adding ball-milled biochar into the water to be treated; enriching the galaxolide in the water into the surface and pores of the ball-milled biochar by the aid of excellent physicochemical properties of the ball-milled biochar through adsorption and distribution functions to efficiently remove galaxolide pollutants in the water. Resourceful treatment of waste is realized to a certain degree by biochar preparation, and preparation of the ball-milled biochar has the advantages of simple process, low cost and high efficiency. Compared with other biochar modification methods (such as acid and alkali modification, andbiochar and nano-particle compounding), the method has the advantages that cost is saved, and secondary pollution is reduced. The HHCB adsorption quantity of the method can reach 2125mg/kg and is farhigher than that of corresponding original biochar (750mg/kg).