31results about How to "High adsorption rate" patented technology

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 invention belongs to the technical field of catalyst preparation, and particularly relates to a TiO2 / Co3O4 / AgBr ternary heterojunction composite material as well as a preparation method and application thereof. According to the invention, AgBr particles are introduced to carry out surface modification on a binary material to form a point-to-surface contact heterojunction, so that the electron transfer efficiency is improved, the electron-hole separation is accelerated, the oxidative degradation performance of the catalyst is improved, and the photocatalytic activity is further improved. When the TiO2 / Co3O4 / AgBr ternary heterojunction composite material provided by the invention is used for carrying out adsorption treatment on antibiotics in a water body, better stability and adsorption rate can be shown, and the TiO2 / Co3O4 / AgBr ternary heterojunction composite material has great commercial popularization potential.

The utility model relates to the technical field of water treatment devices, in particular to an electromagnetic separation water treatment device which comprises a treatment box, sliding openings are symmetrically formed in the top of the treatment box, cleaning sleeves are fixedly connected to the interiors of the sliding openings, sleeves are movably inserted into the cleaning sleeves, iron cores are fixedly arranged in the sleeves, and the iron cores are fixedly connected with the sliding openings. The outer portion of the iron core is fixedly sleeved with a coil, and a servo motor is fixedly arranged on the inner wall of the treatment box through a supporting rod. The stirring rod is driven by the servo motor to rotate, a rotating magnetic field can be generated to induce sewage to form eddy current, the adsorption probability that pollutants collide with an iron core and a coil is increased, the treatment time is shortened, and the stirring rod can drive the cleaning rod to rotate while rotating, so that substances attached to the inner walls and the bottoms of the treatment box and the bottom cover are effectively scraped; and the treatment box can be separated from the bottom cover in the later period, so that the maintenance is convenient.

The invention discloses a wiring terminal production laser cutting device and process, and relates to the field of laser cutting devices.The wiring terminal production laser cutting device comprises a machine body, bases are symmetrically installed at the top of the machine body, and the tops of the bases are connected with a positioning plate through air cylinders; a dust collection wave tube is rotationally arranged at the top of the positioning plate, a swing range adjusting assembly for the dust collection wave tube is arranged in the positioning plate, the two sides of the dust collection wave tube are connected with the inner side faces of the long ends of side plates, and the side plates and the dust collection wave tube form a fan-shaped dust collection structure; a base plate is arranged on the outer end face of the positioning plate, a clamping spring is arranged between the outer end face of the positioning plate and the base plate, and a pre-tightening force adjusting assembly of the clamping spring is arranged in the positioning plate. According to the laser cutting device and process for wiring terminal production, through linkage operation of clamping positioning, synchronous dust collection range adjustment, reciprocating swing dust collection and pre-tightening force adjustment, wiring terminal clamping, cutting dust efficient cleaning and clamping force self-adaption are achieved, and the laser cutting quality is improved.

This application relates to a storage silo, specifically to the field of storage equipment. The silo includes a silo body and an adsorption assembly. The silo body has an inlet and an outlet, and the adsorption assembly includes several magnetic rods disposed on the inner wall of the outlet. This application uses magnetic rods to adsorb metal particle impurities mixed in with rubber and plastic granules, completing impurity removal during the discharge stage, thus achieving both high efficiency and effectiveness in removing metal impurities.

The invention provides a method for separating germanium from a sulfuric acid solution by preparing a composite germanium adsorbent through in-situ polymerization, and relates to the technical field of germanium adsorption separation. The method comprises the following steps: firstly, preparing a carbon-based carrier to obtain a carbon carrier; oxidizing the carbon carrier to obtain a surface oxidized carbon carrier; the preparation method comprises the following steps of: firstly, performing in-situ polymerization grafting of tannic acid to obtain a high-acid stable adsorbent, and finally, putting the adsorbent into a germanium-containing sulfuric acid medium solution to adsorb germanium. According to the method, the problems of high tannin consumption, deterioration of solution quality and difficulty in reutilization of tannin in a traditional tannin germanium precipitation process are solved, and the prepared carbon / tannin complex adsorbent is stable in a high-acid system and can realize adsorption separation of germanium in a sulfuric acid solution.

This invention relates to the field of extraction, specifically to a method for producing a supramolecular red ginsenoside extract. The extraction process includes the following steps: S1, pulverizing and sieving red ginseng to obtain red ginseng powder; S2, adding the red ginseng powder obtained in step S1 to a solvent, heating and refluxing for extraction, concentrating and drying to obtain a crude extract; S3, preparing a loading solution from the crude extract obtained in step S2, eluting through an adsorption resin packed column, collecting the eluent, concentrating and drying to obtain the red ginsenoside extract. The production method of this invention can shorten the number of extraction steps and increase the total saponin content in the extract.

This invention discloses a magnetic nano-adsorbent material, which is a magnetic composite nanosphere modified with silane on its surface. The magnetic nano-adsorbent material has a core-shell structure, and the silane modification includes hydrophilic and lipophilic groups. The hydrophilic and lipophilic groups modified with silane exhibit excellent synergistic effects in improving the adsorption rate of drugs, especially tetrahydrocannabinol (THC-COOH), NKET, and 6-AM, demonstrating a significant improvement in adsorption efficiency. This allows for efficient and selective enrichment and purification of multiple illicit drugs in water. Furthermore, the magnetic nano-adsorbent material of this invention possesses strong magnetism, allowing for rapid separation of the adsorbent material using a magnet, achieving rapid solid-liquid separation, and enabling material recycling and regeneration. This invention employs a sol-gel method to prepare the magnetic nano-adsorbent material, which has simple synthesis conditions, a short one-pot synthesis time, and results in magnetic nano-adsorbent materials with good monodispersity and uniform particle size.

This utility model discloses a pressure swing adsorption (PSA) oxygen generation adsorption tower, relating to the technical field of gas separation equipment, including a tower body structure, a base structure, a pressure swing structure, and a transmission structure. The tower body structure sequentially comprises an inlet chamber, a first molecular sieve layer, an intermediate chamber, a second molecular sieve layer, and an outlet chamber. The base structure converts rotational motion into linear reciprocating motion via a drive motor, a geared disc, a transmission wheel, and an eccentric rod. The pressure swing structure includes a first air bladder and a second air bladder connecting the inlet chamber and the intermediate chamber, with spring-loaded pressure plates connected to their bottoms. The transmission structure drives a first cam and a second cam with a 90° phase difference via a rack and pinion to alternately compress the air bladders. During operation, the compression of the first air bladder increases the air pressure in the inlet chamber, while the expansion of the second air bladder reduces the air pressure in the intermediate chamber, creating a pressure difference that accelerates gas transport; conversely, it enhances the inlet efficiency. This design integrates a self-generating gas pressure mechanism, eliminating the need for an external gas source system, and offers advantages such as compact structure, low energy consumption, and high gas transmission efficiency.

The application discloses a kind of amidoxime materials and its preparation method and application, belong to heavy metal adsorption material field.Amidoxime material in the application is prepared by Schiff base reaction, addition reaction and metal loading, catalyst and regulator need to be added in the process of Schiff base reaction to form specific morphology in preparation process, and monomer in the process of addition reaction also needs to have cyano and mercapto simultaneously, to provide fixed basis for subsequent metal loading process and respond to heavy metal to be adsorbed.Amidoxime group in the amidoxime material in the application has strong multidentate coordination ability, can adsorb heavy metal ions, and reducing agent used in the process of metal loading can reduce heavy metal ions, so that the amidoxime material has adsorption and reduction performance simultaneously.

The present application belongs to the technical field of metallurgical engineering, and mainly relates to a method for wet mercury extraction from cinnabar based on composite leaching and modified resin adsorption. The method comprises the following steps: adding cinnabar concentrate into dilute sulfuric acid, filtering the impurity-removed cinnabar after stirring and reaction; mixing the impurity-removed cinnabar with a composite leaching solution, and stirring and leaching to obtain a mercury-containing complex solution; the composite leaching solution is a mixed solution of a complexing agent and ferric sulfate; after the mercury-containing complex solution is adsorbed by a modified thiourea type chelating resin, a mercury-containing desorption solution is obtained by desorption, and the mercury-containing desorption solution is subjected to electrolytic deposition to obtain metallic mercury. The method realizes efficient extraction of cinnabar reselected and flotation concentrate, recycling of waste water and harmless utilization of solid waste, and has significant advantages in leaching efficiency, environmental protection and raw material adaptability, and has broad industrial application prospects.

The present application relates to a kind of centrifugal uniform seed - double-hole interaction type corn plot precision seed metering device, including seed metering device front shell, type hole rotating disc, suction hole disc, fixed disc, tooth type seed wheel, driving shaft, connecting key, seed metering device rear shell, fixed pin shaft, edge shaft, driving gear, centrifugal wheel;Type hole rotating disc, suction hole disc, fixed disc, centrifugal wheel jointly formed centrifugal seed - double-hole interaction seed cavity filling area, type hole rotating disc, fixed disc, suction hole disc coaxial installation, type hole rotating disc and tooth type seed wheel fixed connection synchronous rotation, suction hole disc is fixed unmoved;Seed metering device adopts the mode of double-shaft drive, driving shaft, edge shaft is separately installed, does not affect each other, driving gear is installed on driving shaft, driving gear and the inner gear ring of tooth type seed wheel are meshed, centrifugal wheel is installed on edge shaft.The present application adopts the mode of centrifugal uniform seed - compound filling, and the disordered corn seed is sequentially moved, airflow suction hole acts on corn together, and filling effect is improved.

The application discloses a phosphorus acid group-containing sodium alginate-gelatin composite porous antibacterial hydrogel ball uranium adsorption material and a preparation method thereof, and relates to a uranium adsorption material and a preparation method thereof. In order to solve the problems of the existing amido oxime group materials for uranium adsorption, i.e., the reduction of adsorption sites due to the excessive combination of amido oxime groups and cross-linking agents, the reduction of adsorption capacity, the reduction of adsorption rate and the reduction of selectivity, the application firstly introduces gelatin and polyamide into sodium alginate to form a sodium alginate-polyamide-gelatin gel system. Then, the gel ball is grafted with phosphorus to strengthen the uranium adsorption effect. Finally, the gel ball is quaternized by iodomethane to enhance the antibacterial performance of the material. The prepared gel ball has the advantages of a relatively rich reticular porous structure, good mechanical performance, more adsorption sites, a high uranium adsorption capacity and certain antibacterial performance, and has a wide development prospect.

The application relates to the technical field of rice cleaning machines, and discloses a strong magnetic adsorption rice drum cleaning machine, which comprises a screening box for screening rice, a storage box is arranged above the screening box, a conveying cylinder is fixedly installed at the bottom of the storage box, a same discharging pipe is arranged between the storage box and the conveying cylinder, a same feeding pipe is arranged between the bottom of the conveying cylinder and the top of the screening box, and a conveying mechanism is arranged in the conveying cylinder; a motor box is fixedly installed at the right side of the conveying cylinder, a same transmission box is fixedly installed at the rear side of the motor box and the rear side of the conveying cylinder, and an adsorption mechanism is arranged between the transmission box and the feeding pipe. The application has the following advantages and effects: through the arrangement of the adsorption mechanism, the strong magnetic drum can adsorb the magnetic impurities mixed in the rice on the surface of the drum in the rotating process, the magnetic impurities in the rice can be removed, and the purity of the rice can be ensured.

A gold extraction process suitable for low-grade ores includes grinding, classification, concentration and adsorption processes; in the grinding process, a gold extraction agent is added to the ore pulp in the mill, and after the classification and concentration processes, in the adsorption process, the concentration of the gold extraction agent in the ore pulp is maintained within 0.8-1.0 / 10000. This gold extraction process significantly improves the adsorption rate of the adsorption column while ensuring that the gold leaching rate is not affected and less gold extraction agent and calcium hydroxide are input, which not only reduces the input amount of the reagent, but also improves the recovery rate of the adsorption column, so that the gold extraction cost is significantly reduced. The beneficial effect of this gold extraction process is that the cyanide leaching time is greatly increased and the gold leaching rate is increased; the ball mill moves violently, the temperature of the ore pulp is high, and the higher temperature is conducive to increasing the dissolution rate of gold in the cyanide solution; the ore pulp is violently stirred, and the oxygen content is high, which is conducive to increasing the leaching rate of gold; it reduces environmental pollution and allows the gold extraction solution to be recycled.

The invention discloses a method for extracting bromine from brine, belonging to the technical field of extracting bromine. The method comprises the following steps: acidification, primary oxidation, impurity removal, preparation of acidified quartz sand filter material, preparation of acidified white carbon black, mixing, preparation of an adsorption device, adsorption, reduction, elution, secondary oxidation, and treatment; in the mixing, after the impurity removal, 201×7 strong alkaline anion exchange resin, acidified white carbon black, and deionized water are mixed, stirred at room temperature, filtered, and vacuum dried to obtain the mixed exchange resin; the method of the invention is less affected by temperature, can still achieve a higher extraction rate for underground brine with a bromine content of less than 150ppm, and has a small equipment footprint, small equipment investment, and low energy consumption. It still has a higher extraction rate after an enlarged experiment, and the adsorption performance of the adsorption exchange resin used decreases slightly after multiple regenerations.

The utility model discloses a dry -type magnetic separator with high -efficient unloading mine structure, including the machine case, the machine case top is equipped with the feed port, the even rotation of magnetic force roller is connected with in the machine case bottom of feed port, the even installation of spiral blade has in the machine case bottom of magnetic force roller, spiral blade bottom is equipped with drive mechanism, the one end of machine case is connected with the discharge chute, the inside rotation of discharge chute and machine case junction is connected with the unloading cylinder, a plurality of magnetic force roller and unloading cylinder are in line and set up, the unloading cylinder inside is provided with the magnetic block, the same drive mechanism is installed to unloading cylinder and magnetic force roller one end, the discharge chute inside is fixed with the scraper in unloading cylinder one side, and the scraper end portion is pasted and contacts the unloading cylinder surface, and through the dynamic function of spiral blade's turning over, the problem that material and magnetic force element contact is not sufficient in traditional equipment is solved, and the adsorption probability of magnetic particle in material is ensured to improve 30% or above.

The utility model provides a negative pressure device for returning ozone, which relates to the technical field of ozone returning, and comprises a device main body and a negative pressure device for returning ozone, one side of the device main body is provided with a filtering mechanism, the filtering mechanism comprises a fixed shell, a filtering pipe is arranged in the fixed shell, one side of the fixed shell is provided with a connecting hole for connecting the device main body, and the connecting hole is communicated with the device main body. One end of the connecting hole is connected with the filter pipe, the other end of the connecting hole is connected with the device body through a first branch pipe, a spiral filter plate arranged outside the filter pipe in a sleeving mode is further arranged in the fixing shell, a second branch pipe is arranged on the outer surface of the first branch pipe in a sleeving mode, and two arc-shaped clamps are arranged on the outer surface of the second branch pipe. According to the utility model, the flowing track of ozone can be changed through the worm-shaped filter plate, so that the ozone can be fully contacted with the worm-shaped filter plate, the probability that a medium in the ozone is adsorbed by the worm-shaped filter plate can be increased, and the filtering mechanism is more convenient to replace by dismounting and mounting the arc-shaped clamp.

The invention discloses a waste gas treatment process in methyl ethyl carbonate production, and belongs to the technical field of waste gas treatment in carbonic ester production. The method comprises the following steps: introducing waste gas into an adsorption tower, and performing adsorption treatment by a composite adsorbent in the adsorption tower; carrying out hot gas desorption on the composite adsorbent in the adsorption tower; and finally, the desorbed gas is subjected to catalytic combustion treatment. Wherein the composite adsorbent comprises a modified activated carbon-PVDF composite material, a modified silica gel-PVDF composite material, modified activated carbon fibers and modified graphene oxide. Wherein the modified activated carbon-PVDF composite material is formed by grafting a hydrophilic monomer on the surface of the activated carbon-PVDF composite material; the modified silica gel-PVDF composite material is formed by grafting a hydrophilic monomer on the surface of the silica gel-PVDF composite material; the modified activated carbon fibers are obtained by introducing disulfide bonds into activated carbon fibers and then grafting vinyl alcohol; the modified graphene oxide is obtained by grafting polyvinyl alcohol to graphene oxide. The adsorption rate of the composite adsorbent is not lower than 95.1%, and the concentration of purified organic matter is smaller than 9 mg / m < 3 >.

The invention relates to the technical field of paint mist filtering devices, and discloses an assembled filtering device for paint mist adsorption, comprising: a support frame composed of a plurality of long rods and used for supporting a filter element in the filtering device; the paper shell is a strip-shaped paper board, the head part and the tail part of the paper shell are connected together by arranging an extension plate so as to wrap the outer side of the supporting frame, and the paper shell is connected and opened through the extension plate when the filtering device is mounted and dismounted; the filter assembly comprises a plurality of filter elements, the filter elements are slidably mounted at different positions in the supporting frame, the outer sides of the filter elements are wrapped with filter body protection shells, and the filter body protection shells are used for supporting and fixing the filter elements in the filter body protection shells so that the filter elements in the filter assembly can be independently mounted. According to the assembled filtering device for paint mist adsorption, the purposes of combined installation of all parts and uniform adsorption of paint mist in the device are achieved, any part can be replaced, and the paint mist adsorption rate is increased.

This invention belongs to the field of chemical technology, specifically relating to a method and system for treating creatine monohydrate mother liquor. First, the creatine monohydrate mother liquor undergoes a first resin adsorption process to adsorb sodium sarcosinate. Then, a second resin adsorption process is performed to adsorb cyanamide derivatives. Finally, sodium ions are separated using bipolar membrane electrodialysis. This "resin adsorption + bipolar membrane electrodialysis" technology significantly improves the absorption rate of sodium sarcosinate and cyanamide derivatives, while significantly reducing the wastewater discharge and the content of pollutants (COD, ammonia nitrogen) in the wastewater, making it environmentally friendly. The creatine monohydrate mother liquor treatment system disclosed in this application can efficiently recover and utilize organic matter and inorganic salts in the mother liquor, reducing wastewater discharge and possessing significant environmental value and economic benefits.

The invention relates to the technical field of agricultural planting, in particular to a method for improving bacterial leaf blight resistance of rice through induction treatment, an amino modified nano silicon dioxide-salicylic acid composite inducer is adopted for induction treatment, and the composite inducer is composed of an amino modified nano silicon dioxide carrier and supported salicylic acid; the treatment method comprises seed soaking and foliage spraying in a seedling stage, and specifically comprises the following steps: (1) seed soaking treatment; (2) foliage spraying; according to the technical scheme, through scientific component selection, process design and treatment mode combination, the control effect of rice on bacterial blight is remarkably improved (the control rate can reach 67% or above), the yield loss caused by diseases is effectively reduced, the use amount of chemical pesticides is reduced, the development requirement of green agriculture is met, and the method is worthy of popularization and application. The method has important practical application value and popularization prospect.

The invention relates to a water treatment technology, and aims to provide a preparation method of modified activated carbon and application of the modified activated carbon in PFASs adsorption. Comprising the following steps: carrying out acid activation treatment on granular activated carbon, washing with water, drying, and dispersing amorphous iron-based alloy powder containing Fe, Si and B into ethanol; immersing the activated carbon into an inorganic adhesive, uniformly stirring, adding an alloy dispersion liquid, and carrying out ultrasonic treatment, so that the iron-based alloy and the adhesive are uniformly distributed on the surfaces of activated carbon particles; and drying the composite material, and roasting in an inert atmosphere to obtain the granular modified activated carbon. After the activated carbon is modified, the diffusion path is remarkably shortened, and the adsorption rate can be increased; due to the small particle size and abundant surface active sites, the adsorption rate and capacity of PFASs are improved, and the modified activated carbon has good removal and stabilization effects on the precursor; gAC-Fe shows excellent performance in the aspect of adsorbing PFASs in AFFF, and the dual purposes of regeneration and pollutant removal can be effectively achieved.

The invention provides a zirconium hydroxide modified NaA molecular sieve as well as a preparation method and application thereof, and relates to the technical field of molecular sieve synthesis and water treatment. The preparation method comprises the following steps: roasting and activating coal gangue to obtain metakaolin; mixing the metakaolin with sodium hydroxide, an aluminum source, a zirconium source and water to obtain an initial solution; aging the initial solution, and performing hydrothermal crystallization on the obtained precursor solution to obtain a zirconium modified NaA molecular sieve; and sequentially carrying out NH4 + ion exchange and Zr < 4 + > ion exchange on the zirconium modified NaA molecular sieve, dipping the obtained ZrA molecular sieve in a soluble zirconium salt solution, mixing with an alkali solution, and carrying out a precipitation reaction to obtain the zirconium hydroxide modified NaA molecular sieve. The problem of pollution caused by accumulation of coal gangue can be effectively solved, and waste is turned into wealth; according to the invention, the zirconium hydroxide can be better combined with the NaA molecular sieve, the loading capacity of the zirconium hydroxide is larger, and excellent sulfate radical adsorption performance is realized; the method is simple in process and low in cost.

The application relates to a barium sulfate nanofiber-based high-temperature-resistant battery diaphragm as well as a preparation method and application thereof. The barium sulfate nanofiber-based high-temperature-resistant battery diaphragm is a hybrid composite nanofiber network structure formed by barium sulfate nanofibers and cellulose nanofibers being wound together through hydrogen bonds and van der waals forces. The content of the barium sulfate nanofibers is 20-100 wt%, and the content of the cellulose nanofibers is 0-80 wt% in terms of mass percentage. Preferably, the content of the barium sulfate nanofibers is 40-80 wt%, and the content of the cellulose nanofibers is 20-60 wt%.

The invention relates to a method for separating vanadium, iron and phosphorus in an acidic vanadium-containing solution by using an ion exchange method. According to the technical scheme, the method comprises the following steps: enabling an acidic vanadium-containing solution to flow into an ion exchange column at a flow rate of 1-1.5 BV / h until resin filled in the ion exchange column is adsorbed to be saturated, so as to obtain loaded resin and adsorption residual liquid; the pH value of the acidic vanadium-containing solution is 0-2.5. Enabling 5-10BV deionized water to reversely flow through the loaded resin in the ion exchange column at the flow rate of 2-5BV / h to obtain resin to be desorbed and washing wastewater; then, a desorption agent of 0.2-0.5 BV reversely flows through the resin to be desorbed in the ion exchange column at the flow rate of 0.2-0.5 BV / h for desorption, and desorbed resin and vanadium-rich liquid are obtained. The method has the characteristics of wide pH application range, good vanadium and iron phosphorus separation effect and low medicament consumption.

The invention discloses a magnetic nano composite material for adsorbing precious metal ions as well as a preparation method and application thereof, and belongs to the technical field of precious metal recovery. The magnetic nano composite material disclosed by the invention is composed of Fe, FeS, a carbon layer and porous carbon, the Fe, the FeS, the carbon layer and the porous carbon have nanoscale sizes and structures; the magnetic nano composite material has the following structure: embedded nanospheres are uniformly distributed in a network structure formed by porous carbon; the nanosphere has a core-shell structure, the core is Fe, the shell is FeS, and the nanosphere is wrapped with a carbon layer. The magnetic nano composite material can highly selectively adsorb more than 99% of Au (III), Ag (I) and Pd (II) from more than 20 kinds of metal ions within 10 min, and precious metal separation can be rapidly achieved in a mode of externally applying a magnetic field.

The invention discloses a method for preparing a phosphorus removal adsorbent by using an ultrasonic-assisted hemicellulase method and application, the preparation method comprises the following steps: cooking dried shaddock peel in boiling water for a period of time, treating the cooked shaddock peel in a hemicellulase solution for a period of time, and then washing the shaddock peel to be neutral; placing the pomelo peel washed to be neutral in an ultrasonic instrument for enzyme deactivation treatment, filtering after treatment, adding absolute ethyl alcohol for decoloration treatment, and filtering and cleaning after treatment to obtain a semi-finished product; and drying the semi-finished product to constant weight, and crushing to obtain the phosphorus removal adsorbent. The optimized shaddock peel powder obtained through ultrasonic-assisted hemicellulase treatment has a relatively strong adsorption effect on phosphorus-containing wastewater. The waste shaddock peel is used as a cheap adsorption material, has the advantages of wide raw material source, low cost budget and high adsorption rate, and can be used as a novel biological adsorbent to realize high-valued utilization of agricultural product processing byproducts.

The application discloses a method for treating pathogenic bacteria in reclaimed water by using biochar-microalgae biofilm particles, which comprises the following steps: culturing chlorella, preparing biochar-microalgae biofilm particles, and adsorbing. The biochar-microalgae biofilm particles can effectively fix the microalgae and prevent the microalgae from flowing out of the reactor. After the treatment is completed, the microalgae can be easily separated from the wastewater, and the separation cost is low. The microalgae has high activity and strong secretion of extracellular excretion, and the overall treatment efficiency is high.

This invention discloses a high-strength, multifunctional papermaking method for reconstituted tobacco filter material and its preparation method, comprising the following steps: first, tobacco stems and tobacco dust are cleaned, dried, and then air-jet pulverized to obtain ultrafine tobacco stem and tobacco dust particles; the ultrafine tobacco stem particles are extracted with hot water and filtered to produce tobacco stem pulp; external fibers are added and broken down to obtain external fiber pulp; the tobacco stem pulp is mixed with the external fiber pulp at 5%~50% of the total pulp dry weight, and a cationic retention aid is added to form a sheet base; the sheet base is coated with a coating solution made of tobacco extract concentrate, ultrafine tobacco dust particles, glycerol, and flavoring; and the finished filter material is obtained by hot air drying, slitting, and rolling. This invention achieves a synergistic improvement in filter material strength, harm reduction, flavor enhancement, and processing performance. The preparation process is simple, environmentally friendly, and has a high raw material utilization rate. The tensile strength of the filter material is increased by more than 30% compared with conventional products, and the adsorption rate of harmful substances is increased by more than 25%. It can be widely used in cigarette filters and tobacco product processing and has extremely high promotional value.