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151results about How to "Achieve removal" patented technology

Static treatment pond structure of aquaculture auxiliary pond

The utility model relates to the technical field of treatment ponds, and particularly discloses a static treatment pond structure of an aquaculture auxiliary pond, which comprises a water pond and a filter component arranged in the water pond, a water outlet pipe body and a water inlet pipe body are arranged on the side edge of the water pond and are both communicated with the water pond, the ends, away from the water pond, of the water outlet pipe body and the water inlet pipe body are connected with an external culture pond, and the water inlet pipe body comprises a first extending pipe body and a central drainage valve which is arranged in a water collecting pit at the bottom of the culture pond. One end of the first extension pipe body is communicated with the pool, and one end far away from the pool extends to the culture pond sump and is communicated with the central drain valve.
Owner:ZHONGKE INTELLIGENT SYSTEM (HUIZHOU) CO LTD

Agricultural non-point source pollution treatment system

The invention discloses an agricultural non-point source pollution treatment system, and relates to the technical field of agricultural environmental protection and water treatment, and the agricultural non-point source pollution treatment system comprises an ecological ditch unit, an ecological pond unit, a connecting pipeline and a control unit; the ecological ditch unit is used for carrying out primary pretreatment on sewage through a plant enhanced corridor and an ecological filter dam to remove suspended solids and part of pollutants; the ecological reservoir pond unit realizes deep purification through a multi-stage process of flocculent precipitation, enhanced denitrification, ecological treatment and a stable area; the control unit intelligently regulates and controls water flow based on water quality monitoring data, water reaching the standard is directly reused in farmland or lakes, and water not reaching the standard enters a pond to be further treated. According to the invention, stepped deep removal of pollutants, cyclic utilization of water resources and self-adaptive operation of the system are realized, and the treatment efficiency and stability are improved.
Owner:CHINA AGRI UNIV

An automated bookmark production line and manufacturing process

This invention relates to the field of automated bookmark production line technology, and more particularly to an automated bookmark production line and production process, comprising: a first conveying device adapted to convey bookmark boards; a second conveying device adapted to convey bookmark sleeves with bookmark boxes inserted; an engraving device adapted to engrave patterns and identification codes on the bookmark boards and bookmark sleeves; a tassel-threading device adapted to thread tassels onto the bookmark boards; a boxing device placing the tassel-threaded bookmark boards into bookmark boxes; a box-inserting device inserting the bookmark boxes containing the bookmark boards into the bookmark sleeves, and transferring the bookmark sleeves with bookmark boxes inserted to the second conveying device; a feeding device transferring the bookmark boards to the first conveying device, and transferring the bookmark boxes and bookmark sleeves to the box-inserting device; and a unloading device sorting and unloading the bookmark sleeves with bookmark boxes inserted. The steps of feeding, threading tassels, engraving patterns, box-inserting, and unloading the bookmarks are all automated, significantly improving efficiency and reducing manual labor, while facilitating monitoring and management of the entire process, thus achieving intelligent production.
Owner:CHANGZHOU UNIV

A method and system for treating raw landfill leachate

This invention discloses a method and system for treating landfill leachate stock, belonging to the field of wastewater treatment technology. The method includes the following steps: first, adding an appropriate amount of acid to the landfill leachate and stirring until homogeneous to obtain an acidic solution with a pH value below 1.5; then, adding silicate cement to the acidic solution in one go or in small amounts multiple times, mixing thoroughly, and allowing it to settle until solids precipitate before discharging the liquid to the external environment or transporting it to the next process. The total amount of silicate cement added is 6%-10% of the mass of the acidic solution. This method can simultaneously treat TP, TN, and NH3 in landfill leachate. 3 Removal of -N and COD, TP, TN, NH 3 The removal rate of nitrogen (-N) can reach over 75%, and the COD removal rate can reach over 30%. The levels of recalcitrant organic macromolecules and benzene ring compounds are significantly reduced. The organic matter in the water sample is reduced, and the molecular structures are simpler and smaller, which is beneficial for biological decomposition and utilization. The system has a simple structure, is easy to use, and significantly reduces water treatment costs.
Owner:SICHUAN UNIV

System for producing and storing hydrogen from seawater and process for producing and storing hydrogen from seawater by utilizing offshore wind power

The invention provides a seawater hydrogen production and storage system and a seawater hydrogen production and storage process using offshore wind power. The seawater hydrogen production and storage system comprises a permeable membrane system, a two-stage RO membrane system, an EDI ultrapure water system and a hydrogen production and storage system, and the permeable membrane system, the two-stage RO membrane system, the EDI ultrapure water system and the hydrogen production and storage system are connected in sequence; in the seawater purification direction, the permeable membrane system comprises a forward osmosis module and permeable membrane modules, the forward osmosis module comprises a forward osmosis membrane and absorption liquid, the absorption liquid is selected from a sodium chloride solution with the mass concentration of 3-15%, and the number of the permeable membrane modules connected in series is 1-3. According to the seawater hydrogen production and storage system, the seawater is subjected to graded purification, the purified seawater can be directly discharged to the sea, the purified ultrapure water can thoroughly avoid a series of problems of chlorine, calcium and magnesium precipitation and the like in the subsequent water electrolysis hydrogen production process, and liquid hydrogen storage oil is directly prepared through the hydrogen production and storage system and is convenient to transport on the sea and other scenes.
Owner:ZHE JIANG HAO RI QING NENG YUAN KE JI YOU XIAN GONG SI

A system for combined denitration of circulating fluidized bed boiler under full load condition

ActiveCN224593305Ueasy to switchIncrease volume fraction
This utility model discloses a system for combined denitrification under full-load conditions in a circulating fluidized bed boiler, comprising a wide-temperature-range SNCR denitrification module and a flue gas circulation module. The injectors in the wide-temperature-range SNCR denitrification module are arranged in the inlet flue of the high-temperature separator, the inlet flue of the high-temperature superheater, or the boiler furnace. The flue gas circulation module includes a flue gas circulation header and flue gas circulation branch pipes arranged along the flue gas flow direction. The flue gas circulation header connects to the flue gas circulation branch pipes, which are connected to the air preheater via a primary air fan. The inlet of the flue gas circulation header connects to the outlet of the induced draft fan. This utility model extends the lower limit of the conventional 800~1050℃ temperature window to 650℃. It uses ethanol as a low-temperature additive, resulting in relatively low denitrification costs and convenient ethanol addition and removal. Compared with existing SCR denitrification technology, the system is simpler and more economical. It does not require boiler modification, nor does it require additional denitrification reactors and catalysts, making the system relatively simple and facilitating switching between low-temperature denitrification mode and conventional denitrification mode.
Owner:XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD

MOF-on-MOF composite material, aptamer probe and preparation method and application thereof

The invention provides an MOF-on-MOF composite material, an aptamer probe as well as a preparation method and application of the aptamer probe. The MOF-on-MOF composite material comprises an HKUST-1 material, the surface of the HKUST-1 material is coated with a Cu-BDC nanosheet; the synthesized HKUST-1 (at) Cu-BDC / Apt aptamer probe can specifically recognize AFB1, the aptamer probe can directly capture the AFB1 and adsorb the AFB1 to active sites on the surface of a material to reduce the nano-enzyme activity of the AFB1, so that quantitative colorimetric detection of the AFB1 is realized, and the aptamer probe has low detection limit, wide detection range, good selectivity and anti-interference performance on the AFB1 and can be used for detecting the AFB1. The AFB1 in a food sample can be rapidly, sensitively and selectively detected. In addition, the composite material has an adsorption effect and high catalytic activity on fungaltoxin, and AFB1 can be efficiently removed through the adsorption effect and the catalytic action.
Owner:KUNMING UNIV OF SCI & TECH

A method for integrated molding of metallic chromium powder and additives

This invention discloses an integrated molding method for metallic chromium powder and additives, comprising: crushing chromite ore and mixing it with aluminum powder, adding additives, mixing and pressing the mixture into a compact, and then feeding it into an electric arc furnace for an electrothermal reaction; after the reaction, separating the slag and metallic chromium; crushing the prepared metallic chromium, adding a binder to the crushed metallic chromium powder, mixing, and then performing high-temperature sintering treatment to obtain high-temperature sintered metallic chromium powder, which is then cleaned and dried; pressing the dried metallic chromium powder into blocks to obtain the finished metallic chromium product. This invention addresses the issue of high carbon content in existing electrothermal methods for preparing metallic chromium by adding chromium trioxide, tin powder, or highly active tin powder to chromite ore. The reaction of chromium trioxide with carbon removes impurities, while the reaction of tin powder with sulfur generates volatile tin sulfide, thereby removing sulfur impurities from the metallic chromium and improving the purity of the finished metallic chromium product.
Owner:SICHUAN YINHE CHEM

Electroencephalogram artifact removal method, system and device based on ica and outlier detection

The application provides an electroencephalogram artifact removal method, system and device based on ICA and outlier detection, which comprises the following steps: selecting an EEG signal containing artifacts in real time; processing the EEG signal containing artifacts; processing the processed EEG signal to generate N independent estimated source signals through decomposition; calculating the kurtosis coefficient of each independent estimated source signal, and setting a threshold value of the kurtosis coefficient; judging whether each independent estimated source signal is an artifact source according to the set threshold value of the kurtosis coefficient, if yes, detecting abnormal data in the artifact source and processing the abnormal data, and if not, obtaining residual source signals; and reconstructing the processed artifact source and the residual source signals to obtain an electroencephalogram signal after artifact removal. The electroencephalogram artifact removal method provided by the application has low complexity, high accuracy and good robustness.
Owner:WUXI MENTAL HEALTH CENT +2

Efficient dehydration method for energetic aqueous waste HTPB propellant

This invention provides a highly efficient dehydration method for energetic and water-containing waste HTPB propellant, comprising: Step 1, barrier coupling sheet preparation: Under low temperature conditions of 5-10℃, the energetic and water-containing waste HTPB propellant is placed inside a barrier, protected by an inert gas, and pressed into propellant sheets with a thickness ≤1mm using a two-roller press; Step 2, fiber-like capillary adsorption: The propellant sheets obtained in Step 1 are spread flat on the surface of a multi-level porous fiber-like capillary matrix, and allowed to adsorb statically. Through capillary effect, free water on the surface of the propellant sheets is driven to migrate along the porous channels of the matrix and be captured, removing the surface free water; The fiber-like capillary matrix is ​​composed of a cellulose skeleton phase, a silica aerogel porous control phase, a hydroxylated nanocellulose interface functional phase, and a polyurethane substrate supporting and stabilizing phase; Step 3, negative pressure physical dehydration; Step 4, chemical selective dehydration; Step 5, safe recycling. This invention has high dehydration efficiency, retains thermal stability, is safe and controllable, and has low cost.
Owner:RONGTONG RESOURCES ANHUI CO LTD +1

A walking board replacement auxiliary tool

This utility model discloses an auxiliary tool for replacing walking boards, including a base, a mounting seat fixedly installed on the top of the base, a rotating seat rotatably connected inside the mounting seat, a connecting sleeve rotatably connected to the rotating seat via a slewing bearing, a drive arm disposed inside the connecting sleeve, a sliding part of the drive arm slidably connected to the inner wall of the connecting sleeve, a mounting arm fixedly connected to the bottom end of the drive arm, and a lifting fork fixedly installed at both ends of the bottom of the mounting arm. Using casters installed on the bottom of the base and the base plate, the device can be easily moved to the location of the walking board to be replaced, so that the lifting fork is positioned directly above the gap between the walking boards. The lifting fork is inserted into the gap between the walking boards by the drive arm. Since the connecting sleeve and the rotating seat are rotatably connected via the slewing bearing, the lifting fork is swung left and right by the drive arm to insert it deeper into the gap between the walking boards. The lifting fork is then rotated upwards by the drive arm to lift the walking board to be replaced, thus removing the installed walking board.
Owner:CHINA RAILWAY SIXTH GROUP CO LTD +1

Chloride molten salt purification apparatus and chloride molten salt purification method

ActiveCN121607094Bachieve removalSimplify removal operations
This application relates to the field of separation using physical or chemical methods, specifically to a chloride molten salt purification device and method. The chloride molten salt purification device includes a container holding assembly, an oxygen supply assembly, a purification furnace body, and a purification moving assembly. The container holding assembly holds multiple molten salt containers; the oxygen supply assembly supplies oxygen to the multiple molten salt containers and includes multiple oxygen supply pipes; the purification furnace body is configured to form a reaction space capable of temperature regulation and accommodating the molten salt containers, and the furnace body forms oxygen supply through-holes for the multiple oxygen supply pipes to enter the reaction space; the purification moving assembly aligns the multiple molten salt containers with the multiple oxygen supply pipes and moves the container holding assembly within the reaction space. The chloride molten salt purification device provided by the embodiments of this application is beneficial for improving the purification efficiency of chloride molten salt.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

A method for preparing a precipitation-resistant polyolefin material with low metal impurities

This invention belongs to the field of polyolefin preparation and relates to a method for preparing a polyolefin material with low metal impurities and resistance to precipitation. The method includes the following steps: (1) adding polyolefin resin raw material and fatty ketone solvent into the extraction vessel of a supercritical extraction device, introducing a gaseous medium into the extraction vessel, adjusting the temperature and pressure of the extraction vessel to make the gaseous medium be in a supercritical state, and treating the polyolefin resin raw material in a supercritical fluid; the fatty ketone solvent is C3-C 10 (1) At least one of the fatty ketone solvents; (2) Cooling and depressurizing to separate the polyolefin resin raw material from the solvent phase and drying it to obtain the polyolefin material with low metal impurities and resistance to precipitation. The method provided by the present invention has high efficiency in removing metal impurities from polyolefins and simultaneously achieves the removal and control of the content of soluble polymers, which significantly improves the purity and precipitation resistance of polyolefin resins.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Hydraulic device oil filling equipment and oil filling method

The application discloses a kind of hydraulic device oil filling equipment of rotary displacement and oil filling method, the oil filling equipment includes support, vacuum pump, circulating pump and hydraulic oil tank;The support is equipped with oil return port, vacuum port and oil outlet;The oil return port is communicated with the top of the hydraulic oil tank, and the oil outlet is communicated with the bottom of the hydraulic oil tank;The vacuum port is communicated with the top of the hydraulic oil tank;The circulating pump is connected on the pipeline connecting the oil outlet and the hydraulic oil tank;The support is also provided with a rotating mechanism, and the rotating mechanism is used to fix the hydraulic device to be filled with oil, to drive the hydraulic device to rotate in the process of oil filling.The application can avoid bubbles into the hydraulic device in the process of oil filling.
Owner:AEROSPACE SCI & ENG INTELLIGENT ROBOT CO LTD

A fractured solid-phase alkylation material and its preparation and application

ActiveCN119708512BImplement in-situ preprocessingachieve removalEpoxyPolymer science
This invention relates to a fractured solid-phase alkylation material, its preparation, and its application. Using epoxy-based microspheres as a carrier, polyethyleneimine, an acid-fractureable linker arm, and iodoacetic acid-N-succinamide ester are sequentially modified via covalent bonding to prepare the fractured solid-phase alkylation material. This material selectively reacts with thiol groups on proteins, enabling efficient enrichment and processing of proteins in complex biological samples such as cells, tissues, and body fluids. By cleaving the linker arm under acidic conditions, the protein and peptide fragments can be released without damage, potentially providing important technical support for deep proteomic coverage analysis and protein variant analysis.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

TEMPO-CNT composite membrane based on layer-by-layer assembly, preparation method and application

The invention discloses a TEMPO-CNT composite membrane based on layer-by-layer assembly, a preparation method and application, and belongs to the technical field of preparation of electrochemical wastewater treatment materials. According to the composite membrane, a layer-by-layer assembly process is adopted, a carbon-based conductive adsorption layer and a TEMPO catalytic function layer are sequentially constructed on a substrate layer, and an ordered layered structure is formed. According to the structure, the high specific surface area and conductivity of the carbon material are fully reserved, TEMPO active sites are uniformly exposed, and efficient cooperation of pollutant adsorption and electrocatalytic degradation is achieved. The composite membrane prepared by the invention can be adapted to various electrochemical systems such as direct current and alternating current (pulse), trace organic pollutants in wastewater can be efficiently removed with low energy consumption by applying corresponding voltage, and the composite membrane has the advantages of flexible operation, wide application scene, good environmental compatibility and the like.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Method for synergistically removing organic matters in aluminum oxide production process

PendingCN121757897ASolve the problem of difficulty in effectively controlling crystal morphologySolve problems that are difficult to effectively controlAluminium compoundsSorbentSodium aluminate
The invention provides a method for synergistically removing organic matters in an aluminum oxide production process, and belongs to the field of aluminum oxide production. The method comprises the following steps: adding a macromolecular organic matter oxidant into a sodium aluminate solution, and carrying out a stirring reaction to degrade macromolecular organic matters in the sodium aluminate solution into medium and small molecular organic matters, so as to obtain a first mixed solution; carrying out solid-liquid separation on the first mixed solution to obtain a first filtrate; adding a sodium oxalate adsorbent into the first filtrate, and carrying out stirring reaction, so that sodium oxalate in the first filtrate is subjected to controlled crystallization on the surface of the sodium oxalate adsorbent to obtain a second mixed solution; carrying out solid-liquid separation on the second mixed solution to obtain a second filtrate; and returning the second filtrate to the aluminum oxide production process. Through a step-by-step targeted treatment design, the limitation of single type of removed organic matters in the existing organic matter removal technology is effectively overcome, and meanwhile, by virtue of an adsorbent mediated crystallization mechanism, the problem that the sodium oxalate crystal morphology is difficult to effectively control is solved.
Owner:ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO

Constructed wetland treatment system, method and application

The invention provides a constructed wetland treatment system and method and application, and belongs to the technical field of pollutant treatment. The constructed wetland treatment system comprises a constructed wetland pool, a supporting layer and a matrix functional layer are sequentially arranged in the constructed wetland pool from bottom to top, wetland plants are planted on the matrix functional layer, and the matrix functional layer is a mixture of Manchuino ore and quartz sand. According to the invention, the Manchuo mine is used as a matrix filler of an artificial wetland system, and through the electron supply, adsorption and coprecipitation effects of the Manchuo mine, the form of heavy metals is changed, the adsorption of micro-organic pollutants and the adsorption and precipitation of the heavy metals are promoted, and the removal of the heavy metals and part of the micro-organic pollutants is realized; meanwhile, microorganic micropollutants are degraded through a synergistic effect with microbial anabolism and mediated oxidation-reduction reaction thereof and plant assimilation absorption, so that a multifunctional pollutant removal system for the constructed wetland is constructed, and the utilization rate of the constructed wetland is effectively increased while effluent is ensured to meet the national standard.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Experimental device and method for degrading organophosphorus wastewater and recovering phosphorus

The invention discloses an organic phosphorus wastewater degradation and phosphorus recovery experimental device and method, and particularly relates to the field of organic phosphorus wastewater treatment.The organic phosphorus wastewater degradation and phosphorus recovery experimental device comprises an electric reaction box, a recovery reaction unit capable of performing electrochemical reaction is arranged in the electric reaction box, and a water inlet pipe and a water outlet pipe are arranged between the two sides of the recovery reaction unit and the electric reaction box respectively; the recovery reaction unit comprises a water storage reaction box, a Fe3O4-coated N-GO negative plate and a titanium platinum positive plate are arranged in the water storage reaction box, the Fe3O4-coated N-GO negative plate is used for preparing Fe3O4-coated N-GO by adopting a one-step hydrothermal method, the Fe3O4-coated N-GO is loaded on an electrode, and the Fe3O4-coated N-GO negative plate has excellent electron transfer efficiency and catalytic activity. The organic phosphorus wastewater can be completely degraded within 40 minutes, and the PO4 < 3-> conversion rate is 35%; by constructing a continuous operation system for electrochemical degradation and recovery of the organophosphorus wastewater, efficient degradation and detoxification of the organophosphorus wastewater are realized, released phosphorus is recovered, and the method has practical significance of reducing treatment cost and increasing economic benefits.
Owner:HEFEI UNIV OF TECH

Negative pressure impregnation device for glass fiber cloth

The utility model discloses a negative pressure impregnation device for glass fiber cloth, and relates to the technical field of glass fiber cloth. The glass fiber cloth negative pressure impregnation device comprises an impregnation tank, a guide structure arranged on the impregnation tank and a winding roller located on the right side of the impregnation tank. The guide structure comprises a mounting plate, a transmission roller, a first motor and a guide roller, and the guide structure further comprises a first filter roller and a second filter roller which are rotationally mounted on the adjacent inner walls of the gum dipping tank; a second motor is fixedly mounted on the rear side of the gum dipping tank, rotating shafts are rotationally mounted on the adjacent inner walls of the gum dipping tank, an output shaft of the second motor is fixedly connected with one group of rotating shafts, mounting seats are fixedly mounted on the rotating shafts, embedding grooves are formed in the mounting seats, and springs are fixedly mounted in the embedding grooves; and a processing structure is arranged above the gum dipping tank. The device can be used for extruding the impregnated glass fiber cloth, so that redundant colloid can be removed.
Owner:HUBEI RUIQIANG ENVIRONMENTAL PROTECTION TECH CO LTD

Pen tip protective cover mounting mechanism and mounting wire

This utility model provides a pen tip protective sleeve installation mechanism and installation line, relating to the field of pen tip protective sleeve installation technology. The pen tip protective sleeve installation mechanism includes a sleeve flow channel for orderly supply of protective sleeves to subsequent steps; an opening and closing control module to control whether to cut off the sleeve flow channel; a pick-and-place installation mechanism and a rotation drive mechanism: a sleeve installation fixture for accommodating the protective sleeve supplied by the sleeve flow channel, a rotation drive mechanism for driving the pick-and-place installation mechanism to rotate, and an installation power mechanism for installing the protective sleeve from the sleeve installation fixture onto the pen. This device can automatically pick up the protective sleeve and then install it onto the pen, thus replacing manual installation and offering advantages of higher efficiency and lower cost. The installation line in this solution can also automatically adjust the pen barrel feeding posture and remove defective products after protective sleeve installation, further improving the automation level and production efficiency of pen tip protective sleeve installation.
Owner:ZHEJIANG KAYOU ANIMATION CO LTD

Sewage treatment equipment for tert-butyl peroxybenzoate production

The utility model discloses sewage treatment equipment for tert-butyl peroxybenzoate production. The sewage treatment equipment comprises an evaporation tank; the jacket is arranged on the outer side of the evaporation tank, and a steam heating space is formed between the jacket and the evaporation tank; the sealing head is arranged at the top end of the evaporation tank; the stirring driver is arranged on the sealing head; the stirring drive is connected with the stirring shaft, and the stirring shaft is rotatably arranged on the sealing head; the scraping plate is arranged on the stirring shaft. High-temperature steam is discharged into the steam heating space and rapidly heats the evaporation tank, so that the sewage in the evaporation tank is heated and boiled, water in the sewage is converted into steam, and sodium chloride in the sewage is crystallized and separated out. In the treatment process, the stirring shaft is driven by the stirring drive to rotate, sewage is continuously stirred, bumping of the sewage is avoided, high-quality crystal salt can be formed easily, and meanwhile, the inner wall of the evaporation tank is scraped by the scraping plates differently, so that salt is prevented from being hung on the inner wall of the evaporation tank.
Owner:JIUJIANG QIANFA FINE CHEM CO LTD

A Ce SA-MXene composite material, its preparation method and application

The application discloses a Ce SA-MXene composite material and a preparation method and application thereof, the Ce SA-MXene composite material is formed by anchoring single-atom cerium on MXene, and the anchoring amount of the single-atom cerium accounts for 1-50 wt% of the total composite material; the preparation method comprises the following steps: adding cerium salt into a MXene suspension, fully mixing, filtering, washing and drying the obtained mixed solution, and then performing step-by-step calcination treatment, and the Ce SA-MXene composite material is obtained after the end of the step-by-step calcination treatment. The Ce SA-MXene composite material synthesized by the application has a large specific surface area, the metal cerium is dispersed in the form of atoms, the metal active sites are fully exposed, the reactivity and stability of the Ce SA-MXene composite material are enhanced by increasing the active sites, the Ce SA-MXene composite material is applied to the field of water pollution as a catalyst, can efficiently adsorb pollutants, such as artificial sweetener aspartame, can also realize recycling of the metal cerium, has the advantages of high catalytic efficiency, high use value, easy recycling and the like, and has a wide application prospect.
Owner:NANJING UNIV

Method for co-producing lithium hydroxide and lithium dihydrogen phosphate from crude lithium carbonate and application of method

PendingCN121850013Aincrease typehigh yieldSecondary cellsPositive electrodesPhosphate crystalsFluid phase
The invention provides a method for co-producing lithium hydroxide and lithium dihydrogen phosphate from crude lithium carbonate, which comprises the following steps: S1, pulping the crude lithium carbonate, mixing with a calcium-containing reagent, carrying out causticization reaction, and carrying out solid-liquid separation to obtain causticized liquid and causticized slag; s2, mixing a part of the causticized liquid with a first impurity removal agent and a second impurity removal agent for impurity removal, and after solid-liquid separation, taking a liquid phase to obtain a first impurity-removed liquid; and S3, mixing the first impurity-removed liquid with the remaining causticized liquid, performing resin impurity removal to obtain a second impurity-removed liquid, and performing evaporation concentration and solid-liquid separation on part of the second impurity-removed liquid in sequence to obtain lithium hydroxide crystals and lithium hydroxide mother liquor. And taking the residual second impurity-removed liquid in the step S3, and carrying out lithium precipitation and acidification to prepare lithium dihydrogen phosphate crystals. The problem of product singleness of lithium enterprises is solved.
Owner:HUNAN BRUNP RECYCLING TECH CO LTD +1

A system and method for removing small molecule organics based on field energy granulation

This invention relates to the field of water treatment technology, and particularly to a system and method for removing small-molecule organic matter based on field energy granulation and agglomeration. The system includes an initial mixing section and an electrostatic field enhancement section and a post-mixing section connected sequentially to the initial mixing section. Through the effects of initial mixing and electrostatic field enhancement, medium-sized polymers are first formed, which combine with small-molecule organic matter to form complexes, encapsulating the small-molecule polymers. Then, during post-mixing, coagulants are continuously added and adhere to the initial complexes, forming a coral reef-like surface with a higher zeta potential and a larger specific surface area. Each newly formed surface layer combines with pollutants and covers the previous layer, thereby encapsulating more small-molecule organic matter into the flocs and improving the removal rate of small-molecule organic matter. This solves the problem of low removal rates of small-molecule organic matter in existing coagulation processes, which cannot meet the requirements for wastewater recycling.
Owner:XIAN TPRI WATER & ENVIRONMENTAL PROTECTION

Direct high-temperature regeneration method of waste lithium iron phosphate positive plate in water vapor atmosphere

The invention discloses a direct high-temperature regeneration method of a waste lithium iron phosphate positive plate in a water vapor atmosphere. The method comprises the following steps: directly placing the positive plate obtained by discharging and disassembling the waste lithium iron phosphate battery into a reaction container, directly regenerating at 600-650 DEG C by taking superheated steam as a gasification medium, and removing aluminum foil after the regeneration process is completed, thereby obtaining the regenerated lithium iron phosphate positive plate. According to the method provided by the invention, the structure of lithium iron phosphate can be completely repaired at a relatively low temperature, and aluminum foil fusion is avoided. Compared with a traditional recycling process, the method has the advantages that complex pretreatment steps such as smashing, screening and stripping are omitted, material loss is reduced, the whole process is mild and environmentally friendly, and the method is short in process and easy and convenient to operate.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI

Sorting device for mold machining

The utility model relates to the technical field of sorting devices, and discloses a sorting device for mold processing, which comprises a connecting plate, the front side of the top of the connecting plate is fixedly connected with a support plate II, the front side of the bottom of the support plate II is fixedly connected with an L-shaped plate, and the front side of the top of the L-shaped plate is fixedly connected with a servo motor II. The output end of the second servo motor penetrates through the front side of the bottom of the second supporting plate and is fixedly connected with a third bevel gear, the outer wall of the third bevel gear is connected with a fourth bevel gear in an engaged mode, and the middle of the rear side of the fourth bevel gear is fixedly connected with a double-end threaded rod. According to the die sorting device, the dies needing to be sorted are conveyed through the conveying mechanism, at the moment, when unqualified dies are encountered, the unqualified dies on the conveying mechanism are removed, and therefore the unqualified dies can be removed in the sorting process, the die qualification effect is improved, and the daily use requirement is met.
Owner:SUZHOU HONGDI HARDWARE PROCESSING CO LTD

Preparation method of composite photocatalyst

The present application relates to a kind of preparation methods of composite photocatalyst, utilize metal load to inhibit photoelectron-hole recombination, and utilize RuO2 To generate hypochlorous acid by precipitation of chlorine ion in water, the characteristics of electron transfer of Pt are cooperated to speed up reaction rate, improve yield.Hypochlorous acid is used to remove nitrogen-containing nutrient substance, to control the growth of algae from source.Chlorine ion realizes circulation, reduces the use of chemical reagent in removal process and the generation of secondary pollution.In addition, the photocatalyst in the present application can realize the control and removal of algae under solar irradiation, greatly saves cost.
Owner:XIAMEN UNIV OF TECH

Flue gas ultralow emission system and method based on chemical looping combustion

The invention relates to the technical field of flue gas treatment, in particular to a flue gas ultra-low emission system and method based on chemical looping combustion, and the flue gas ultra-low emission system comprises an in-furnace in-situ desulfurization unit, a cyclone separator, a nitrogen oxide removal unit, a dust removal unit, an out-furnace desulfurization unit and a recirculation unit which are connected in sequence in the flue gas flowing direction; wherein the nitrogen oxide removal unit is arranged in a flue between the cyclone separator and the dust removal unit; and part of recycled flue gas treated by the dust removal unit and / or the recycling unit is at least used for diluting or atomizing a denitration reducing agent in the nitrogen oxide removal unit, and / or returns to a chemical looping coal feeding system. According to the invention, through creative connection relations and medium circulation paths among the units, the beneficial effects of ensuring carbon capture advantages, efficiently purifying special pollutants, realizing internal circulation integration of the system, having good economy and the like are generated.
Owner:DATANG ENVIRONMENT IND GRP

Two-phase active material generating device and clothes treating apparatus

PendingCN121976375Aeliminate odorOdor realizationOther washing machinesGaseous substancesFluid phaseMechanical engineering
The invention relates to the technical field of clothes treatment equipment, and provides a double-phase active substance generating device and clothes treatment equipment. The double-phase active substance generating device comprises a shell, a separator is arranged in the shell, and an inner cavity of the shell is divided into a gas ionization cavity and a liquid ionization cavity by the separator; an electrode structure is arranged in the gas ionization cavity and is used for generating a gas-phase active substance when being electrified; and a piezoelectric material layer is arranged on one side, facing the liquid ionization cavity, of the separator, and is used for being activated to generate voltage to generate a liquid-phase active substance when the electrode structure is electrified. According to the double-phase active substance generating device, the gas-phase active substance and the liquid-phase active substance can be generated at the same time by electrifying the electrode structure, and under the combined action of the gas-phase active substance and the liquid-phase active substance, residual odor on clothes can be removed, bacteria on the clothes can be killed, air in clothes treatment equipment can be cleaned, and peculiar smells in a barrel can be removed.
Owner:WUXI MEIZHI ELECTRIC CO LTD