68results about How to "High removal rate" patented technology

The application discloses a dilution pretreatment detector for ion chromatography detection of underground water and a method thereof, and relates to the technical field of water quality detection.The detector comprises a supporting shell, a dilution liquid storage cylinder is arranged in the supporting shell, an underground water storage cylinder is arranged in one side of the supporting shell, and a stirring dilution cylinder is connected to the bottom of the underground water storage cylinder and the dilution liquid storage cylinder.A series of structures are arranged, which can effectively avoid impurities from accumulating in the filter screen and the cylinder, greatly improve the impurity removal rate, provide high-purity samples for subsequent ion chromatography detection, reduce the risk of pipeline blockage and instrument damage, ensure that the sample concentration after dilution fully meets the ion chromatography detection requirements, significantly improve the accuracy and stability of the detection results, greatly improve the continuity and work efficiency of the underground water sample pretreatment, adapt to batch sample detection requirements, facilitate deep maintenance and component replacement, shorten equipment maintenance time, and reduce use and maintenance costs.

This invention belongs to the field of wet electronic chemicals technology, specifically relating to a method for preparing electronic-grade hydrogen peroxide. The method includes the following steps: adjusting the concentration of raw hydrogen peroxide, and then filtering it sequentially through a reverse osmosis membrane, a modified cation exchange resin, an anion exchange resin, and a mixed ion exchange resin to obtain electronic-grade hydrogen peroxide. The modified cation exchange resin used is modified based on conventional cation exchange resin through pore expansion and grafting, optimizing the spatial matching of pore structure and functional sites. This achieves passivation of metal ions, enhanced adsorption capacity, and improved oxidation resistance, as well as a deep synergistic effect of these three effects. Ultimately, it achieves the dual goals of efficient purification and stable operation of the resin in the hydrogen peroxide system. The resulting electronic-grade hydrogen peroxide can reduce the content of single impurity metal ions to below 5 ppt, meeting the requirements of SEMI G5 standards, and can be directly applied to high-end manufacturing fields such as semiconductor wafer cleaning.

This application discloses an automatic sauerkraut filling machine in the field of food packaging technology, including a base, a support column, a top seat, and multiple filling components. The support column is connected between the base and the top seat. The base has a notch, and a packaging machine is connected to the notch. The packaging opening of the packaging machine is located at the notch, and a packaging bag is connected to the packaging opening. A motor is located at the bottom inner part of the base, and the output shaft of the motor is connected to the support column. A turntable is connected to the top of the base and is connected to the support column. Multiple filling components are all located on the turntable. Multiple drive components are connected to the support column to drive the filling components from the turntable through the support column to the bottom of the top seat. Each filling component includes a slider, a connecting column, and an electric telescopic rod. The slider is connected to the turntable and is connected to the drive components. A locking component for fixing sauerkraut is connected to the slider. The connecting column is connected to the top of the slider, and the electric telescopic rod is connected to the top of the connecting column.

The application discloses a wet oxidation catalyst, which comprises the following raw materials in percentage by weight: 0.1-2% noble metal, 1-10% graphene-based material, and the rest is a carrier, wherein the carrier is modified titanium dioxide, specifically, a rare earth-transition metal-oxygen vacancy-mesoporous three-dimensional gradient titanium dioxide carrier. The application aims at solving the technical problem of poor stability of the catalyst.

The application provides a method and device for treating wastewater by combining a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, breeding wastewater is treated by the suspended filler floating bed after passing through a hydrolysis tank, and effluent is treated in a sedimentation tank, and wastewater of the suspended filler floating bed is returned to the suspended filler floating bed for secondary treatment; S2, wastewater of the sedimentation tank is returned to the hydrolysis tank; and S3, effluent of the sedimentation tank is introduced into a soil underground infiltration system. The system provided by the application is beneficial to further strengthening the effects of denitrification, phosphorus removal and removal of suspended solids, and solves the problems of low dissolved oxygen content of influent and wastewater in the system, which is not conducive to the growth of nitrifying bacteria, and low effective volume utilization rate. In the use process, the filler does not need to be replaced, and mechanical aeration equipment does not need to be added, and the system has the advantages of low investment cost, no need to add chemical agents for treatment, obvious effect, not easy to breed mosquitoes, simple operation and management, and beautification of the environment, and has remarkable ecological and economic benefits for promoting deep purification of breeding wastewater.

The utility model relates to a wastewater denitrification and desulfurization treatment device which is characterized in that a water distributor is arranged at the lower part of an anaerobic reaction tank of an anaerobic reactor, a three-phase separator is arranged at the upper part of the anaerobic reaction tank of the anaerobic reactor, and a stirrer is arranged on an anoxic reaction tank of an anoxic reactor; an overflow port of the anaerobic reaction tank is connected and communicated with the anoxic reaction tank, a reflux port of the anaerobic reaction tank is connected and communicated with the anaerobic reaction tank through a wastewater reflux pipe, an aerator is arranged at the bottom of an aerobic reaction tank of the aerobic reactor, the anoxic reaction tank is connected and communicated with the aerobic reaction tank, a partition plate is arranged in the settling pond, a water inlet area is arranged on one side of the partition plate, and a settling area is arranged on the other side of the partition plate. A clear liquid outlet pipe is arranged at the upper part of the inclined plate of the sedimentation tank, a communicated clear liquid return pipe is arranged at the front part of the clear liquid valve of the clear liquid outlet pipe, and the clear liquid return pipe is communicated with the anoxic reaction tank. According to the device, the sulfate radical removal rate is high, nitrate in the wastewater can be simultaneously removed while sulfate radicals in the wastewater are removed, and the equipment investment and the treatment cost are reduced.

The application provides a coalescence-adsorption coupled binary hydrophilic-hydrophobic particle deep bed oil removal process and device, and the process comprises the following steps: S1, mixed liquid mixing and adsorption; S2, first coalescence separation of the mixed liquid; S3, second coalescence separation of the mixed liquid; and S4, recycling of emulsified oil containing DOM and adsorbent. The process of the application realizes efficient purification of oil-containing sewage containing DOM and emulsified oil through the steps of adsorbent dispersion mixing and two-stage binary hydrophilic-hydrophobic particle coalescence separation, in combination with a special device; the mixing effect of the adsorbent and the sewage can be strengthened, the DOM adsorption and emulsified oil demulsification efficiency can be improved, the adsorbent recycling and water phase purification can be realized at the same time, and the problems of incomplete treatment and low efficiency of existing oil removal technologies on multi-form pollutants are solved.

This application relates to the technical field of formaldehyde treatment equipment and discloses an industrial formaldehyde production tail gas treatment device, including a mounting frame fixedly installed in the middle of the inner cavity of a spray tower. The inner cavity of the mounting frame is provided with several sets of spray components. Each spray component includes a support frame fixedly installed at the bottom of the inner cavity of the mounting frame, and a first guide element is movably sleeved inside the support frame. Simultaneously, a second guide element extending to the bottom of the support frame is movably sleeved inside the first guide element. In this industrial formaldehyde production tail gas treatment device, regarding the arrangement of the spray components and their structures, during the operation of the spray tower, as formaldehyde tail gas accumulates at the bottom of the inner cavity, the gas pressure of the formaldehyde tail gas at the bottom of the inner cavity increases accordingly, forcing the second guide element to move upwards. This allows the formaldehyde tail gas to enter the gap formed between the first guide element and the support frame, thereby effectively increasing the contact time between the formaldehyde tail gas and water.

The application discloses a system and method for treating high-concentration cyclohexane oxidation tail gas. The system comprises an adsorption / desorption module and an absorption / desorption module, and can directly treat high-concentration cyclohexane oxidation tail gas while meeting the gas emission requirements. The system has the advantages of short overall process, high cyclohexane recovery rate, reasonable energy utilization, low energy consumption and the like.

The utility model relates to material transportation is with iron removal and divides material device, including transfer hopper, bidirectional belt conveyor, strong magnetic de-ironer and plate chain conveyor, the transfer hopper is used for storing material, its bottom is connected with the discharge pipe, and the discharge is aligned bidirectional belt conveyor's feed end, the strong magnetic de-ironer is installed in the top of bidirectional belt conveyor, is used for removing the iron impurity in material, the discharge end of bidirectional belt conveyor is connected with the feed end of plate chain conveyor, is used for conveying material to subsequent section, can form gradient magnetic field through the strong magnetic de-ironer and electromagnet bar array through the utility model, utilize the principle that ferromagnetic substance is stressed in the magnetic field, realizes the efficient removal of different particle size iron miscellaneous.

The application relates to the technical field of coal quality sorting, and discloses a precision sorting and regulation method and system suitable for complex coal quality, which comprises the following steps: determining the component parameters of each component based on a component analysis model and coal quality parameters, comparing all the component parameters in a historical regulation database, determining the fan rotating speed of a blower based on the similarity of the component parameters when a calling strategy is determined, constructing a wind speed mapping model based on a sample data set and the historical regulation database when a compensation strategy is determined, determining whether the stability of the fan rotating speed is qualified based on wind speed fluctuation frequency, determining the fan rotating speed correlation result based on the valve opening and a correlation rule algorithm, determining the rotating speed regulation coefficient of the fan rotating speed according to the fan rotating speed correlation result, and adjusting the fan rotating speed according to the rotating speed regulation coefficient; and the reliability of sorting is ensured by determining the component parameters and judging the stability of the fan rotating speed.

The utility model is suitable for silicon carbide membrane filtration technical field provides a kind of agentless self-flocculation silicon carbide membrane filtration device, it include: fixed seat, the fixed seat is equipped with reaction mechanism and water production tank;The reaction mechanism includes the reaction pool of being fixed on the fixed seat, the one side of the reaction pool is equipped with ladder, one end of the reaction pool is equipped with power supply, the power supply is connected and is equipped with electrode, the one side of the reaction pool is equipped with control electric box, the inside of the reaction pool is equipped with membrane box group, the outside of the reaction pool adjacent the membrane box group is equipped with driving assembly, the top of the reaction pool is equipped with mud scraping assembly, the bottom of the reaction pool is equipped with a plurality of groups of first discharge pipeline, by this, the utility model has the advantages that reagent dosage is less, sludge production is low;High degree of automation, convenient operation;Equipment integration degree is high, and floor area is small;Processing effect is more optimal, and special water quality is suitable;Environment-friendly strong advantage.

This invention belongs to the field of metal purification technology and discloses a method for preparing high-purity indium with low silicon content, comprising the following steps: Step 1: Place the indium raw material into a hydrogenation furnace and evacuate to a vacuum degree of 5*10 ‑3 Pa-8*10 ‑3 Step 2: Purge with inert gas to atmospheric pressure and maintain the pressure for 30 minutes; Step 3: Replace the inert gas with hydrogen gas, turn on the heater to raise the temperature to 400-600℃, and maintain the temperature for 1-2 hours to obtain the low-silicon content high-purity indium. This invention discloses a method for preparing low-silicon content high-purity indium, which can reduce the silicon content in high-purity indium to <10 ppbw, effectively improving the performance of high-purity indium.

The application discloses an ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process, which comprises the following steps: filtered wastewater is pumped by a booster pump, and then sequentially passes through a micro-nano bubble jet device connected with an ozone generator and a flow-through ultraviolet lamp, and finally enters an oxidation contact tank; the wastewater in the oxidation contact tank is continuously circulated by the wastewater booster pump, and treated wastewater is discharged after COD reaches a standard. The ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process has the advantages that the process is used for treating chemical industrial park wastewater by adopting the ozone micro-nano bubble technology coupling ultraviolet jet advanced oxidation process, ozone utilization rate is high, process conditions are mild, and the removal effect of wastewater COD is good, so the process has great potential in the field of wastewater treatment; the ozone micro-nano bubble coupling ultraviolet advanced oxidation process requires less hardware equipment and has low operation cost, so the process has a broad application prospect in the field of engineering wastewater treatment.

The invention discloses an environment-friendly high-performance titanium alloy polishing composition as well as a preparation method and application thereof, and relates to the technical field of metal material surface treatment. According to the environment-friendly high-performance titanium alloy polishing composition, the pH value of a basic system is adjusted to 9.5-10.0 through a pH adjusting agent; the base system comprises the following components in percentage by mass: 10-30% of silica sol, 3-4% of an anti-gel stabilizer (urea or methylurea), 2-3% of a heat transfer improvement and surface defect inhibitor (ethylene glycol or propylene glycol), 0.1-0.2% of a wetting leveling agent, 1-2% of an alcohol amine complexing agent and 0.5-1% of an aminopolycarboxylic acid chelating agent besides water. According to the environment-friendly high-performance titanium alloy polishing composition, on the premise that an oxidizing agent is completely abandoned, perfect balance of high stability, high polishing rate and excellent surface quality is achieved through unique formula design, and the environment-friendly high-performance titanium alloy polishing composition has the advantages of being environmentally friendly and high in safety.

This invention relates to the field of coagulant technology and discloses a polyaluminum ferric silicate coagulant and its preparation method, comprising the following steps: S1 coal gangue is calcined to obtain modified coal gangue; S2 modified coal gangue is acid-leached to obtain coal gangue acid leaching solution; S3 the coal gangue acid leaching solution is subjected to titanium doping, pH adjustment, polymerization, centrifugation, and aging to obtain the coagulant. The preparation method provided by this invention, after activation and modification, undergoes acid leaching, polymerization, centrifugation, aging, and drying to prepare the polyaluminum ferric silicate coagulant. By optimizing the calcination temperature, modification ratio, acid concentration, polymerization pH, polymerization temperature, and polymerization time, the coagulation performance of the coagulant can be improved, thereby increasing the wastewater pollutant removal rate.

This invention discloses a purification method for producing molybdenum-99 in a reactor using uranyl nitrate solution as nuclear fuel, relating to the field of radioisotope production technology. The method involves first adding an oxidant to the crude molybdenum-99 product solution produced by the solution reactor, oxidizing the crude molybdenum-99 product to MoO4. 2‑ The solution is then evaporated to dryness; a digestion solution is added to the evaporation residue to dissolve the impurities; a dissolving solution is added to the digested solid to dissolve the solid, which is then evaporated to dryness; finally, an alkaline solution is added to the evaporated solid to dissolve it, yielding a molybdenum-99 product solution that meets pharmacopoeia requirements. Compared to traditional methods for purifying molybdenum, this invention does not introduce new impurities, has a low heating temperature, low energy loss, is easy to operate in a hot chamber, and has a high impurity removal rate.

This invention relates to the field of water remediation technology, specifically disclosing a Trichoderma XH5 fungus, a hybrid system, its construction method, and its applications. The Trichoderma XH5 fungus was deposited at the China Center for Type Culture Collection on September 29, 2025, with accession number CCTCC: M 20252142, and is classified as follows: Eastern Trichoderma XH5. The Trichoderma XH5 provided by this invention has the ability to denitrify, specifically by improving the removal rates of nitrates, total nitrogen, and nitrites.

The utility model belongs to high temperature oxidation blackening production line technical field discloses high temperature oxidation blackening production line with waste heat recovery and waste gas purification function, including feeding mechanism, oxidation furnace and cooling tank connected in proper order, and the exhaust port of oxidation furnace is connected with preheating recovery purification unit, preheating recovery purification unit includes spiral flow guide heat exchange pipe, inertial separation chamber, catalytic oxidation bed and hot air circulation pipe, and spiral flow guide heat exchange pipe, inertial separation chamber and catalytic oxidation bed are connected in proper order through connecting flange, and hot air circulation pipe is linked with one side of catalytic oxidation bed, and the inner wall of spiral flow guide heat exchange pipe is equipped with spoiler, and the pipe of spiral flow guide heat exchange pipe is wound with cooling water pipe, the utility model discloses a spiral flow guide heat exchange pipe cooling water system and hot air circulation reuse mechanism are used, and high temperature waste gas heat energy is converted into cooling water heat energy and drying / combustion -supporting hot air, so as to improve comprehensive energy utilization rate, and the problem of energy waste caused by traditional process direct emptying is solved simultaneously.

The utility model relates to the zucchini seed processing technical field, specifically disclose a kind of impurity removal device for zucchini seed processing, including base, the upper portion of base is provided with auxiliary impurity removal mechanism, the auxiliary impurity removal mechanism includes jar body, the upper end of jar body is provided with lid, the upper end of lid is penetrated and is rotatably connected with multiple rotating shafts, the lower end of multiple rotating shafts is all fixedly connected with rubber roller, the outer wall of multiple rotating shafts is all fixedly connected with driven gear, the upper end of lid is installed motor, the output of motor is fixedly connected with the driving gear meshing connection of multiple driven gears, the lower end of jar body is connected with the discharge pipe of butterfly valve, by the flexible friction design of rubber roller and jar body inner wall, effectively peel the pulp and light impurities on seed surface, rubber roller and the rubber bump of jar wall adopt non-rigid contact mode, reduce seed epidermis friction damage, breakage rate is lower than traditional rigid structure, protect seed germination activity.

The application relates to a purging device for a liquid preparation system and relates to the technical field of medicine liquid preparation. In order to solve the problem that a traditional purging device cannot completely purge, the purging device comprises a conveying pipeline, the inlet end of the conveying pipeline is provided with a compressed air supply source, the outlet end of the compressed air supply source is sequentially and serially provided with a pressure reducing valve and an electric heater along the conveying pipeline, a plurality of heating modules are arranged in the electric heater, the plurality of heating modules are vertically stacked along the height direction of the electric heater, a heating channel is formed in the electric heater from bottom to top, and a temperature gradient from low to high is formed when the compressed air flows through the heating channel. The application has the effects of effectively stripping the residual moisture on the surface of the system, improving the removal rate of the residual moisture and solving the microbial pollution risk caused by incomplete purging.

This invention belongs to the field of microbial application technology, specifically relating to a method for preparing fermented *Lactobacillus limnoxicamis* extracellular vesicles, the product, and its applications, particularly the application of these fermented *Lactobacillus limnoxicamis* extracellular vesicles and their lyophilized formulations in the preparation of products with antioxidant or anti-aging effects. In this invention, *Lactobacillus limnoxicamis* is inoculated into a modified extracellular vesicle induction medium for fermentation. After culture, a two-stage solid-liquid separation is performed, and the supernatant is collected to obtain the extracellular vesicle processing solution. This solution is purified using a capillary electrophoresis system, and the positive extreme liquid is collected and filtered to obtain the purified product of fermented *Lactobacillus limnoxicamis* extracellular vesicles. The extracellular vesicles derived from fermented *Lactobacillus limnoxicamis* prepared by this invention can effectively scavenge free radicals. Somatic cell experiments have demonstrated its excellent anti-aging properties, and the transformation and application research of *Lactobacillus* extracellular vesicles has explored its development potential in the field of anti-aging products.

This invention belongs to the field of wastewater treatment technology, specifically relating to a method and apparatus for removing COD from high-salt, high-organic-content wastewater. The removal method employs two organic matter retention membranes connected in series to treat the high-salt, high-organic-content wastewater. By controlling appropriate process conditions, these organic matter retention membranes primarily retain organic matter while retaining as little salt as possible, ensuring stable operation of subsequent processes or achieving compliant wastewater discharge. Furthermore, the concentrate obtained after treatment by each organic matter retention membrane is returned in a specific proportion to the inlet of the membrane that produced the concentrate, thereby ensuring efficient and stable membrane operation, improving system recovery rate, and extending membrane lifespan. This invention achieves COD removal from high-salt, high-organic-content wastewater using only a single process, exhibiting high removal rate, good decolorization effect, and high recovery rate. It significantly shortens the process flow and is characterized by being green, efficient, energy-saving, environmentally friendly, and highly reliable.

This application discloses a composite grinding sander, comprising: a housing; a motor disposed within the housing for providing driving force; a drive shaft connected to and driven by the motor; a connecting seat, one end of the drive shaft disposed within the connecting seat; a oscillating grinding disc disposed at the bottom of the connecting seat, having a grinding disc groove at its center, and connected to the drive shaft via an eccentric transmission mechanism, causing the oscillating grinding disc to oscillate when the drive shaft rotates; and a rotating grinding disc disposed within the grinding disc groove, connected to the drive shaft and capable of rotating with the drive shaft. High-speed rotary coarse grinding is achieved through the central rotating grinding disc, resulting in a high material removal rate; and oscillating fine polishing is achieved through the peripheral oscillating grinding disc, resulting in a smooth surface. Both work collaboratively in the same process, solving both the surface roughness problem of traditional rotary coarse grinding machines and the low efficiency problem of traditional oscillating sanders.

This invention relates to the field of water treatment technology, specifically to a method for adsorbing heavy metals in copper-containing wastewater. The method includes: preparing a modified chitosan composite material; preparing a composite fiber filter membrane; preparing composite hydrogel microspheres; and treating the copper-containing wastewater. This invention first dissolves chitosan and mixes it with nano-ferric oxide to form a physical coating, imparting magnetic responsiveness to the chitosan. Then, it modifies the chitosan using 1,3,5-phenyltricarboxylic acid and triethylenetetramine. A three-dimensional network cross-linked structure is constructed by reacting glutaraldehyde with the amino groups of chitosan and triethylenetetramine to produce modified chitosan. Finally, graphene oxide is loaded onto the surface and pores of the modified chitosan through impregnation and drying to obtain a modified chitosan composite material. When this material is added to pretreated wastewater, it can significantly improve the adsorption capacity for copper ions in copper-containing wastewater.

This utility model belongs to the technical field of rice washing devices, and discloses a rice washing device, including a basket assembly for holding rice for washing, and a box assembly for holding water for washing rice. A water circulation component is provided on one side of the box assembly for water intake and circulation for washing rice. The basket assembly is inserted into the top of the box assembly. The box assembly includes a box body, with an overflow trough on the top circumference of the box body. The top surface of the overflow trough is higher than the top surface of the box body. A return water pipe is provided at the bottom of the overflow trough, with its bottom end penetrating into the box body and equipped with a check valve. A waste discharge pipe is provided in the middle of the bottom of the box body, and a waste discharge valve is installed on the waste discharge pipe. The water circulation component includes a water pump, with its inlet connected to the box body. In this rice washing device, the cylindrical filter screen at the bottom of the basket intercepts rice, allowing sand and gravel to sink to the conical bottom of the box; floating bran is discharged through the overflow trough, achieving three-stage separation of sand, rice, and bran.

This invention relates to the field of wastewater purification and discloses a replaceable-filler ecological filter dam for wastewater purification. This ecological filter dam consists of an upstream dam body, a downstream dam body, and a filtration zone located between them. The filtration zone sequentially comprises a gravel filling layer, an activated carbon filling layer, a porous filler ball filling layer, and a plant layer. The dam body is constructed of robust and corrosion-resistant materials, and its unique slope design effectively regulates water flow. The replaceable-filler design allows for easy replacement of each layer of filler via inspection ports on both sides of the dam body, ensuring long-term stable purification efficiency. The aquatic plant roots in the plant layer stabilize the filter media, absorb nutrients, and simultaneously increase oxygen through photosynthesis. This ecological filter dam can efficiently remove organic matter, nitrogen, phosphorus, and other impurities from wastewater, which is of great significance for improving the aquatic environment and controlling water pollution, providing an innovative and practical solution for wastewater treatment.

This invention discloses a deep defluorination device and its defluorination process for wastewater, relating to the field of defluorination equipment. It includes a resin column with an inner temperature-regulating column coaxially arranged inside and an outer temperature-regulating column coaxially arranged on its outer wall. The inlet of the outer temperature-regulating column is located at its top, and its outlet is located at its bottom. The inlet and outlet of the inner temperature-regulating column are opposite to those of the outer temperature-regulating column. A spiral tube is located inside the outer temperature-regulating column, with its top end connected to both an air inlet pipe and a regeneration liquid inlet pipe located outside the resin column. The bottom end of the spiral tube is connected to a cleaning water inlet pipe located outside the resin column. This invention utilizes flowing temperature-regulating water to transfer heat through the side walls of the resin column and the inner temperature-regulating column, rapidly achieving indirect temperature regulation of the liquid inside the resin column during both the adsorption and regeneration phases, thus balancing the adsorption efficiency and capacity during the adsorption phase.