170results about How to "Reduce turbidity" patented technology

The invention belongs to the technical field of protein purification processes, and particularly relates to a method for separating and purifying alpha-lactalbumin in whey. Comprising the following steps: S1, obtaining skimmed milk; s2, performing microfiltration separation on the skimmed milk obtained in the step S1 to obtain whey protein liquid containing alpha-lactalbumin; s3, loading the whey protein liquid containing alpha-lactalbumin obtained in S2 into a balanced strong cation chromatographic column, and collecting a flow-through liquid to obtain separated and purified alpha-lactalbumin; according to the method, the SP Purose 6XL filler is combined with the specific 10-60mM acetic acid buffer solution with the pH value of 4-6, so that the method is particularly suitable for separating the alpha-lactalbumin from other proteins in the whey, and the alpha-lactalbumin is collected in a flow-through manner, so that large-volume sample loading can be realized, and more importantly, the obtained alpha-lactalbumin is high in yield and purity; in addition, the process is simple in extraction step and free of a tedious elution process, a large amount of time can be saved, the production cost is reduced, and industrial production is facilitated.

The utility model relates to the technical field of wastewater treatment, and discloses a high-hardness and high-salinity wastewater treatment device which comprises a seed crystal fluidization tank, a medicament storage tank, a crystallization and granulation fluidized bed and a multi-effect evaporation system, the crystallization and granulation fluidized bed is respectively connected with the seed crystal fluidization tank and the medicament storage tank through pipelines, and the multi-effect evaporation system is connected with the seed crystal fluidization tank and the medicament storage tank through pipelines. The liquid inlet position of the multi-effect evaporation system is connected with a liquid outlet end pipeline of the crystallization and granulation fluidized bed, the liquid return position of the multi-effect evaporation system is connected with a liquid inlet end pipeline of the crystallization and granulation fluidized bed, the air outlet end of the multi-effect evaporation system is connected with a condenser through a pipeline, and the condenser is connected with a vacuum pump through a pipeline; the liquid return position of the multi-effect evaporation system is externally connected with high-hardness and high-salinity wastewater, and the high-hardness and high-salinity wastewater can be mixed with return liquid flowing out of the liquid return position of the multi-effect evaporation system and then enters the liquid inlet end of the crystallization and granulation fluidized bed; the device has the advantages that the occupied area is reduced, and the operation cost is reduced.

The invention discloses a double-biological-membrane sewage treatment process for deep nitrogen and phosphorus removal coupled sludge reduction, and belongs to the technical field of sewage treatment. The process is composed of an anoxic biofilm reaction tank, an aerobic biofilm reaction tank and an iron autotrophic denitrification biofilter, and efficient nitrogen and phosphorus removal is performed on sewage through the double-biofilm sewage treatment process. Nitrogen and phosphorus removal and sludge in-situ reduction are mainly carried out in the front-end biological membrane reaction tank, and deep nitrogen and phosphorus removal is mainly carried out in the iron autotrophic denitrification biological filter tank. And the residual sludge is predded by using a protozoon / metazoon food chain of the aerobic biological membrane reaction tank, so that the effect of zero generation of the residual sludge is achieved. The concentration of iron ions is changed by adjusting the reflux ratio of iron-ion-containing reflux liquid generated by the iron autotrophic denitrification biofilter, so that the number and community structures of micro-organisms are effectively controlled, the control on sludge predation is further achieved, and the sludge reduction effect is improved. The process is obvious in effect, can stably operate for a long time and is suitable for engineering application.

The invention provides a device and a method for improving transparency of a natural water body by utilizing a microalgae biological membrane, and belongs to the field of water treatment, and the device comprises a water tank, rollers, a microalgae attachment matrix, a water distribution device and a lighting device. The transparency of the natural water body is effectively improved through the microalgae biological membrane. The microalgae biological membrane secretes macromolecular extracellular polymeric substances, can adsorb suspended particulate matters and soluble organic matters in water, and inhibits the reproduction of other planktons through nutrition competition, so that the turbidity is reduced. In addition, the device is designed as up-flow water inlet, so that the contact between the water body and the microalgae biological membrane is enhanced, and the treatment effect is improved. LED lamps and a heating device are adopted to keep a proper growth environment, and meanwhile, a photovoltaic power generation system is arranged, so that green and environment-friendly effects are achieved. The method is simple and easy to implement, low in cost and convenient to manage and maintain, and a novel and effective technical scheme is provided for improving the transparency of the natural water body.

The invention discloses a sodium carboxymethyl cellulose-zeolite-chitosan copolymer, a preparation method, a coagulant and application, and belongs to the field of water treatment. CS, CMC-Na and a zeolite solution are directly added into treated water according to a certain sequence, the CS, CMC-Na and zeolite are subjected to an in-situ self-assembly process, the formed sodium carboxymethyl cellulose-zeolite-chitosan copolymer (CMC-Zeo-CS) has a net-shaped spongy structure, the turbidity removal efficiency of the structure is superior to that of CS, CMC-Na and a traditional coagulant (FeCl3 solution), and the water treatment effect is good. And the formed flower has good mechanical strength, and the coagulation precipitate is high in re-settling speed and good in settling effect after being disturbed and suspended by the outside.

The invention relates to the technical field of ore cleaning, in particular to a water-saving ore-soil separator. Comprising a frame body and the like, a controller is installed on the side face of the frame body, a drainage valve is connected to the side face of the frame body, a conveyor is installed on the frame body, connecting frames are evenly connected to a conveying belt of the conveyor at intervals, blocking rods are connected to the interiors of the connecting frames at intervals, and baffles and a water storage frame are connected to the inner wall of the frame body; the connecting pipe is communicated with the water storage frame and a water outlet of the water pump I; ore is completely immersed in water, the adhesiveness of soil can be relieved, meanwhile, the vibration effect of the ore in the conveying process can be achieved through the roller screen, water is sprayed downwards through the spraying pipe to wash the ore, in this way, the ore can be comprehensively cleaned, the separation effect is improved, and the service life of the ore is prolonged. And a water circulation system can be formed between the frame body and the water storage frame, so that water resources are saved.

The invention relates to the technical field of PETG materials, in particular to a PETG material for an optical mirror surface material and a preparation method of the PETG material, and the PETG material comprises the following raw materials in parts by weight: 30-60 parts of transparent polyester resin, 1-3 parts of an antioxidant, 0.5-2.5 parts of a lubricant, 0.5-1.5 parts of an anti-yellowing agent, 1-3 parts of a plastic brightener, 5-10 parts of polymer resin, 1-3 parts of a nucleating agent and 5-10 parts of modified glass fiber. The PETG material disclosed by the invention has excellent optical performance, high-gloss surface and low turbidity, and the light transmittance of the PETG material can reach 90% or above; meanwhile, the material also has relatively good toughness, excellent tensile property and relatively good impact resistance; the prepared PETG material can be used for preparing a GAG three-layer co-solvent tablet, so that the GAG three-layer co-solvent tablet is good in transparency and texture, and is suitable for products requiring high transparency.

The sour soup-fermented corn noodle composite leavening agent comprises lactobacillus plantarum and lactobacillus fermentum, and the thallus quantity ratio is (1-5): (1-5); the water absorption rate of the fermented corn sour soup corn noodles is increased, gelatinization is more uniform, and a more compact gel structure can be formed. The synergistically fermented noodles are low in turbidity, breaking rate, turbidity and cooking loss rate, and high in water absorption rate. The product has special flavor substances and thioethers, and the contents of aldehydes, acids, ketones and esters are increased. The color, appearance, taste, flavor and elasticity and toughness scores are improved, and the taste and flavor are superior to those of natural fermentation.

The invention discloses a hydrogel sustained-release system loaded with a 3D cultured MSC source exosome and a preparation method and application thereof, and belongs to the technical field of biomedicine, the exosome is the 3D cultured MSC source exosome, MSC comprises bone marrow MSC, and hydrogel comprises GelMA. According to the invention, the methacrylated gelatin (GelMA) hydrogel is used as a carrier to load the 3D culture MSC source exosome, and an anti-inflammatory and repair-promoting exosome-hydrogel sustained release system is successfully established and is applied to treatment of corneal injury repair. Researches prove that the 3D cultured MSC exosome can relieve inflammatory response and stromal scar formation after corneal injury and promote corneal epithelium regeneration. The hydrogel is used as a carrier, so that continuous slow release of the functional exosome on the surface of the cornea is realized, the action time of the functional exosome is prolonged, the treatment effect of the functional exosome is improved, corneal stroma regeneration can be promoted, and the repair of corneal injury is comprehensively promoted.

The utility model discloses an automatic surface water monitoring system, which comprises a sampling module for sampling a water body and conveying the sampled water body, and is characterized by comprising a precipitation module and a first measurement module which are connected with the sampling module, and a conveying module arranged on the precipitation module, and the second measuring module is connected with the precipitation module through a conveying module. The sedimentation time of the sampling water body in the second sedimentation tank is prolonged according to the turbidity of the water body, the turbidity of the sampling water body is further reduced, the influence on the total phosphorus measuring unit in the second measuring module is reduced, and the data accuracy of the total phosphorus measuring unit is improved.

The application discloses a vaccine heat-resistant protective agent, a preparation method and application thereof, and belongs to the technical field of vaccines. The vaccine heat-resistant protective agent comprises the following raw materials: polycarboxybetaine, taurine, a sugar substance, polysarcosine, erythritol, gelatin enzymatic hydrolysate, a metal ion chelating agent and a buffer. The application also provides a preparation method. Compared with the prior art, the synergistic effect of polycarboxybetaine, taurine, a sugar substance, polysarcosine, gelatin enzymatic hydrolysate, erythritol and EDTA-Na2 can significantly improve the freeze-dried cake forming and reconstitution performance, shorten the reconstitution time, reduce the turbidity and insoluble particles. After 2-8 DEG C, 25 DEG C and 37 DEG C storage and multiple freeze-thaw cycle investigations, the antigen content residual rate and glass transition temperature are obviously superior to those of a traditional sucrose and mannitol system, and the inactivation risk caused by cold chain fluctuation can be effectively buffered.

The present invention discloses a centrifugal separation type photoreaction device, including a reactor, an illumination component, and a driving component. A flow guide baffle is fixedly arranged in the reactor, and the illumination component is arranged in the center of the reactor. The reactor rotates under the driving of the driving component, driving the flow guide baffle to rotate to generate stirring and centrifugal force, so that the solid precipitate generated in the reactor with the reaction is centrifugally separated and discharged. The photochemical reaction device sets the stirring power outside the reactor, omitting the traditional agitator, avoiding the blocking of light by redundant devices such as stirring rods and paddles, and retaining a larger photoreaction space; through the rotation of the reactor, the inner wall flow guide module is used to stir and drive the water body to produce a centrifugal separation effect, and the original and suspended particles and insoluble solids generated in the wastewater during the reaction are removed by rotating centrifugation, the turbidity of the water body is reduced, the light transmittance of the water body is increased, the light utilization rate is effectively improved, and a series of problems of low efficiency of the photochemical reaction caused by the increase of turbidity during the photochemical reaction are solved. It is particularly suitable for photochemical reactions that produce precipitation during the reaction. The device of the present invention is typically used in the photocatalytic decomposition treatment of complex heavy metal wastewater.

The application provides an anode foil and a preparation method thereof. The preparation method comprises the following steps: providing an unformed foil, wherein the unformed foil comprises an aluminum foil base material and an aluminum powder sintering layer arranged on the surface of the aluminum foil base material; and sequentially performing the following processes on the unformed foil: water boiling, first-stage chemical conversion, second-stage chemical conversion, third-stage chemical conversion, power feeding treatment, fourth-stage chemical conversion, fifth-stage chemical conversion, first-stage heat treatment, first chemical conversion repair, first phosphoric acid treatment, second chemical conversion repair, second-stage heat treatment, third chemical conversion repair and second phosphoric acid treatment. The solutes of the electrolyte of the first-stage chemical conversion, the second-stage chemical conversion and the third-stage chemical conversion comprise citric acid, triammonium citrate, adipic acid, ammonium adipate, salicylic acid, hypophosphite, boric acid and ammonium salt, and the solvent is water. The solutes of the electrolyte of the fourth-stage chemical conversion and the fifth-stage chemical conversion comprise citric acid, triammonium citrate, sebacic acid, ammonium sebacate, salicylic acid, sodium hypophosphite, boric acid and ammonium salt, and the solvent is water. An anode foil prepared by the preparation method has a high specific capacity and a small hydration leakage current.

The invention relates to the related field of coast engineering, in particular to a deep-water abrupt slope cajia ecological coast design method, which comprises the following steps: constructing an ecological gentle slope, and introducing marine plants (such as sea grass and algae) with strong adaptability to fix sediments, reduce water turbidity and provide a habitat for marine organisms. By establishing a long-term monitoring system, the change of an ecological coast is tracked in real time, particularly, environmental challenges such as sea level rise and climate change are handled, structural adjustment and ecological restoration are carried out in time, and the long-term stability and functionality of the system are ensured. The method has remarkable ecological protection, coastline stability, biodiversity improvement and social benefits, and can provide powerful support for sustainable development of coastal areas.

The utility model belongs to solar energy utilization technical field, concretely belongs to a kind of jacket heat exchange pressure type unpowered hot water system;Including multiple series pressure jacket heat exchange solar water heater, auxiliary water tank;Pressure jacket heat exchange solar water heater is provided with pressure water tank;When pressure jacket heat exchange solar water heater is connected in series, the water inlet of end pressure jacket heat exchange solar water heater is connected to tap water pipeline, and water inlet safety valve is also provided in tap water pipeline;Water outlet is connected to the water inlet of next pressure jacket heat exchange solar water heater;The water outlet of another end pressure jacket heat exchange solar water heater is connected to auxiliary water tank, and water outlet safety valve is connected on pipeline, and auxiliary water tank is connected to water end.The utility model connects single pressure jacket heat exchange solar water heater in series, after safety valve in hot water outlet pipeline, then connect auxiliary water tank, and auxiliary water tank has heat storage function, auxiliary heating water.

The application belongs to the technical field of pressurized gasification device and water treatment, and particularly discloses a gasification ash water quality optimization device and an optimization method thereof. The device comprises a flash evaporation system and a sedimentation system. The flash evaporation system comprises a high-pressure flash tank, a saturated hot water tower, a high-flash condenser and a high-pressure flash separator which are sequentially connected in sequence. The sedimentation system comprises a plurality of sedimentation tanks, and the sedimentation tanks comprise a sedimentation tank body A for removing turbidity and a sedimentation tank body B for removing hardness. The high-pressure flash tank is used for treating black water from a gasification furnace and a washing tower. The high-pressure flash tank is connected with a low-pressure flash tank. The low-pressure flash tank is connected with an oxygen remover, an acid gas condenser and an acid gas separator. The acid gas separator is connected with the sedimentation tank. The gasification ash water quality optimization device and the optimization method thereof are reasonable in design, simple in structure, safe and reliable, convenient to use, and have good popularization and application value.

The embodiment of the present application provides a crystallization promoting body, a preparation method thereof and a wastewater treatment device. The crystallization promoting body is used for removing target ions in wastewater. The crystallization promoting body comprises: a carrier sheet, the density of the carrier sheet is less than the density of the wastewater; and crystal seeds, the crystal seeds are arranged on the surface of the carrier sheet and used for promoting the target ions to form crystals. The crystallization promoting body can reduce the energy consumption of the wastewater treatment device.

This application provides a two-step flocculation adaptive control method for tailings slurry based on FBRM online monitoring, relating to the field of tailings treatment technology in the mineral processing industry. The method includes: online monitoring of the original tailings slurry using focused beam reflection measurement under no-doping conditions to obtain the particle size baseline characteristics of the original slurry; adding a primary flocculant to obtain a first slurry, and monitoring the dynamic particle size characteristics of the flocs during the flocculation process in real time; based on the dynamic particle size characteristics of the first slurry, determining whether the first slurry has reached a ready state suitable for secondary flocculation according to a preset primary flocculation completion criterion; when the first slurry reaches the ready state, automatically initiating the addition of a secondary flocculant to obtain a second slurry, and providing real-time feedback on the particle size distribution change in the second slurry as a control signal to adaptively adjust the dosing rate of the secondary flocculant. This method can automatically adapt to changes in ore properties, solid content, and operating conditions, and has strong potential for widespread application.

A composite solid-state electrolyte membrane and its preparation method, and a solid-state battery, are disclosed. The preparation method of the composite solid-state electrolyte membrane includes: providing a polymer mother liquor comprising polyvinylidene fluoride, polyimide, and lithium salt; dispersing inorganic ceramic electrolyte powder in a solvent; under a first mechanical shear, adding a first portion of filler pre-dispersion liquid accounting for 5% to 25% to the polymer mother liquor; under a second mechanical shear, adding a second portion of filler pre-dispersion liquid accounting for 25% to 50%; and under a third mechanical shear, adding the remaining portion of filler pre-dispersion liquid to prepare a composite slurry; and forming the composite slurry into a film to prepare the composite solid-state electrolyte membrane. This application improves the dispersion effect and interfacial bonding of the filler in the composite solid-state electrolyte membrane by using a combination of staged feeding and mechanical shear, pre-wetting a small amount of filler to construct a stable initial mixed phase, and then using a portion of the filler to reduce viscosity and improve shear efficiency, thereby promoting the uniform dispersion of the remaining filler.

The invention provides a water heater control method and device, equipment and a storage medium. According to the method, the turbidity of water in an inner container of the water heater is obtained, if the turbidity is larger than or equal to a turbidity threshold value, a multivariate planning cleaning function corresponding to the turbidity and a target constraint condition are obtained, the multivariate planning cleaning function comprises to-be-determined self-cleaning parameters, and the target constraint condition is determined according to the to-be-determined self-cleaning parameters. The target constraint condition comprises a value range of the self-cleaning parameter to be determined. And according to the multivariate planning cleaning function and the target constraint condition, determining self-cleaning parameters of the self-cleaning operation, and according to the self-cleaning parameters, carrying out self-cleaning on the inner container so as to reduce the turbidity of water in the inner container. According to the method, the accuracy of determining the self-cleaning parameters of the inner container can be improved, and the self-cleaning effect of the inner container is improved.

The present application provides a pre-filming agent composition for anti-corrosion treatment of metal surfaces in a circulating water system, including thiocyanuric acid or thiocyanuric acid salt, 8-hydroxyquinoline, AA / AMPS, aluminum salt and zinc salt. The present application also provides a pre-filming process using the above-mentioned pre-filming agent composition for anti-corrosion treatment of metal surfaces in a circulating water system, comprising the following steps: Step 1): inject water into the cleaned circulating water system, turn on the circulation pump to circulate the water; Step 2): add thiocyanuric acid or thiocyanuric acid salt, 8-hydroxyquinoline, AA / AMPS to the circulating water, adjust the pH, add aluminum salt and zinc salt, and pre-film. The present application is a pre-filming agent composition for anti-corrosion treatment of metal surfaces in a circulating water system, and the components are all phosphorus-free components, which are relatively friendly to the environment. When the metal surface of the circulating water system is treated for anti-corrosion, the film forming speed is fast, the pre-filming time is short, and the corrosion-resistant layer formed by the pre-filming has excellent performance.

The utility model discloses a high-ammonia-nitrogen wastewater treatment device based on a zeolite and MBR combined process. The high-ammonia-nitrogen wastewater treatment device comprises an adjusting tank, a biochemical reaction tank, an MBR membrane tank, a reflux tank and a water producing tank, the interior of the biochemical reaction tank is divided into an anoxic zone and an aerobic zone by a first partition plate, a submersible stirrer is arranged in the anoxic zone, an aeration device is arranged in the aerobic zone, zeolite particles are filled in the anoxic zone, a grid mesh for intercepting the zeolite particles is arranged at an overflow port of the aerobic zone, and an MBR membrane assembly is arranged in the MBR membrane tank; the regulating tank is connected with the biochemical reaction tank through a lifting pump and a lifting pipeline, the anoxic zone, the aerobic zone, the MBR membrane tank and the reflux tank are in overflow connection in sequence, the reflux tank is connected with the anoxic zone through a reflux pump and an external reflux pipeline, and the MBR membrane assembly is connected with the water producing tank through a water producing pump and a water producing pipe. The device can improve the treatment efficiency and treatment effect of the ammonia-nitrogen wastewater and improve the effluent quality.

The invention relates to the technical field of papermaking production, in particular to a production method of an anionic garbage capturing agent, when a high-positive-charge low-molecular-weight polymer is prepared, high-density positive charges of the anionic garbage capturing agent can effectively adsorb anionic garbage, fine fibers and fine components in a system; the consumption of aluminum sulfate can be effectively reduced, after the consumption of the aluminum sulfate is reduced, the concentration of sulfuric acid anions is reduced by about 30%, and interference on a wastewater treatment system can be reduced; in the using process, PCD control over white water is stable, the turbidity of the white water has a decreasing trend, it is indicated that colloid retention of the system becomes good, the system is cleaner, and therefore certain benefits can be brought to improvement of the operation performance of a paper machine; as an organic anion garbage trapping agent which is low in molecular weight, high in charge density and free of sulfate radicals, the anion garbage trapping agent is small in adding amount, cannot be accumulated in a system, can be taken away along with a paper web in the papermaking process, and cannot cause any influence on a water system.

The invention belongs to the technical field of egg product processing, and particularly relates to a preparation method of low-viscosity high-temperature-resistant egg white liquid. According to the preparation method of the high-temperature-resistant egg white liquid, an interaction mode of egg white components is regulated and controlled through ultrasonic / pH cooperative treatment, so that the heat stability of fresh egg white under the heating condition is improved, and then the high-temperature-resistant egg white liquid is obtained. The method comprises the following steps: carrying out shell-egg separation on an egg to obtain a fresh egg white liquid; treating the fresh egg white liquid by using an ultrasonic pulverizer; adjusting the pH value to 10.6; packaging to obtain a finished product. The finally prepared low-viscosity high-temperature-resistant egg white liquid is still kept in a flowing state after being heated for 5 minutes at 72 DEG C, the turbidity is reduced from 1.87 to 0.38, the protein concentration is increased from 28.9 mg / mL to 96.74 mg / mL, and the gel point is increased from 63 DEG C to 76.5 DEG C. According to the preparation method of the low-viscosity high-temperature-resistant egg white liquid, a theoretical basis is provided for improving the processing applicability of egg white raw materials in downstream industries, and a technical support is provided for development of low-viscosity high-temperature-resistant egg white ingredients.

The invention provides a system and method for removing new pollutants through MBR coupling advanced oxidation, and belongs to the technical field of sewage treatment.The main process comprises an MBR process unit and an advanced oxidation process unit, the advanced oxidation process comprises an ozone micro-nano bubble device, a corresponding intelligent ozone adding control module, an ultraviolet light catalysis advanced oxidation device and a corresponding intelligent hydrogen peroxide adding control module. The background value of pollutants in water is fully reduced and a part of new pollutants are removed through the MBR process unit; part of light absorption substances and part of new pollutants are removed through the ozone micro-nano bubble device, and the light transmittance of the water body is increased to 82% or above; finally, hydroxyl free radicals (. OH) with strong oxidizing property are generated through UV / H2O2 excitation, and most of new pollutants are removed. The two process units are deeply coupled, the working procedures are closely linked, and new pollutants can be efficiently removed; the two intelligent control modules are used for accurately adding chemicals according to the treatment effect, so that the operation cost can be reduced.

This utility model relates to the field of water treatment technology, and in particular to an integrated water treatment system suitable for extremely cold regions with temperatures as low as -60°C. The system includes a raw water collection tank, a heat exchanger, a static mixer, a self-cleaning filter, an ozone oxidation treatment unit, an air flotation unit, a thickening tank unit, a tubular microfiltration membrane device, a clear water tank module, and a pipeline network. The system is integrated within multiple standardized containers, with the water treatment equipment and components housed within the containers. The air flotation device and ozone catalytic tower are located in the external space. Through the integration of flocculation, self-cleaning filtration, ozone oxidation, air flotation, and tubular microfiltration processes, and employing a modular container design, the system is equipped with electric heating and composite insulation structures to achieve efficient decontamination and freeze protection. Simultaneously, the use of air flotation + flocculation + tubular microfiltration processes efficiently removes suspended solids, operates automatically, and is adapted to extremely cold environments. The pipelines and equipment utilize composite insulation technology to ensure stable operation at low temperatures.

This invention belongs to the field of wastewater treatment technology, specifically relating to a heavy metal scavenging agent modified with boric acid-hydroxyoxime groups, its preparation method, and its application. The boric acid-hydroxyoxime group-modified heavy metal scavenging agent comprises a three-dimensional network structure formed by the dehydration condensation bridging of polyaluminum chloride and boric acid, and hydrogen-bonded hydroxamic acid groups. This invention uses polyaluminum chloride (PAC) as the main framework, forming Al-O-B boron-oxygen covalent bonds through the dehydration condensation of boric acid and the hydroxyl groups of PAC, bridging the oligomeric PAC into a stable three-dimensional network polymer structure, thus enhancing its adsorption bridging ability. Then, it adsorbs acetylhydroxamic acid onto the boron-bridged PAC framework through a multiple hydrogen bond network, constructing a heavy metal scavenging agent with flocculation, adsorption, and chelation functions. The heavy metal scavenging agent of this invention has a stable structure, can be reused multiple times, and has high heavy metal capture efficiency.

The invention discloses a sand cylinder filtration aiding device which comprises two dosing pumps, each dosing pump is communicated with a chemical barrel, chemicals are arranged in each chemical barrel, and the two chemicals are different in type; wherein one dosing pump is communicated with the water pump water inlet pipe through a dosing pump chemical conveying pipe, one end of the water pump water inlet pipe is communicated with the swimming pool, and the other end of the water pump water inlet pipe is communicated with the water inlet pump; the other dosing pump is communicated with a sand cylinder water inlet pipe through the other dosing pump delivery pipe, one end of the sand cylinder water inlet pipe is communicated with the water inlet pump, and the other end of the sand cylinder water inlet pipe is communicated with one end of the sand cylinder; and the other end of the sand cylinder is communicated with the swimming pool through a sand cylinder water outlet pipe. Due to the structural design, a filter aid layer similar to a diatomite filter aid can be formed in the sand tank, so that the filtering effect of the sand tank is greatly improved, the turbidity of effluent is further reduced, the reliability of the treatment effect of the circulating water treatment system of the swimming pool is improved, and meanwhile, the filtering cost is reduced.

The invention discloses an intelligent heat dissipation device of a dry-type transformer and a using method of the intelligent heat dissipation device, and belongs to the technical direction of transformer heat dissipation. The intelligent heat dissipation device comprises a dry-type transformer placement base, and two sets of supporting bases are symmetrically installed at the two ends of the outer portion of the dry-type transformer placement base correspondingly and are the first supporting base and the second supporting base correspondingly; two sets of heat dissipation grooves are symmetrically formed in the two ends of the exterior of the first supporting seat correspondingly, a plurality of sets of heat conduction rods are installed on one side of the interior of the first supporting seat in an array mode, a temperature sensor is fixedly installed on one side of the exterior of the first supporting seat, and a heat dissipation assembly and a second heat dissipation base are further arranged on the dry-type transformer placement base. Through cooperative use of the heat conduction rod, the electric fan set and the temperature sensor, the peripheral temperature of the dry-type transformer placement base can be detected, the heat dissipation mode can be changed according to different temperature values, heat is conducted to the heat conduction rod for heat dissipation when the operation temperature is low, and it is avoided that cold air makes direct contact with the dry-type transformer, and condensed water drops are generated.

The invention relates to the field of uranium purification, in particular to a uranium ore concentrate continuous dissolving device and method. The device comprises a dissolving barrel, the outermost layer is a water bath jacket, the water bath jacket is not communicated with a middle barrel, an inner barrel is placed on an integrated structure of the water bath jacket and the middle barrel, and the bottom of the inner barrel is communicated with the middle barrel; a top cover is arranged at the top of the dissolving barrel, and two feeding holes are formed in the top cover; the stirring shaft and the thermometer are inserted into the inner-layer barrel from the top cover; the stirring shaft and the thermometer are inserted into the inner-layer barrel from the top cover; the middle of the middle cylinder is provided with a dissolved material liquid discharge port, and the bottom is provided with a slag discharge port; the stirring shaft is connected with at least three layers of stirring paddles, the uppermost layer is a hinge turbine paddle, the middle layer is a disc turbine paddle, and the lowermost layer is an anchor paddle. The method comprises the following steps: grinding uranium ore concentrate and water; thickening the obtained grinding slurry; carrying out continuous dissolution; and carrying out two times of centrifugal separation on the dissolved slurry. According to the invention, continuous dissolution of the uranium ore concentrate is realized, and the dissolution efficiency is improved.