40results about How to "Realize resources" patented technology

The invention relates to the technical field of flood control dispatching, and discloses a reservoir flood control water level dynamic control and flood recycling method and system, and the method comprises the steps: obtaining a surface rainfall forecast value of a reservoir basin based on real-time rainwater condition data and numerical weather forecast; a hydrodynamics and hydrology coupled drainage basin runoff model is driven, and an in-reservoir flood hydrograph in a predicted period is generated; judging the flood scale and grade based on the hydrograph, and when the flood is medium and small flood, calculating the dynamic flood control storage capacity of a downstream flood control object by adopting an equivalent flood control effect algorithm taking into account the pre-discharge scheduling capability; according to the dynamic flood control storage capacity, a dynamic flood control water level control value is obtained through backstepping of a water level-storage capacity relation curve of the reservoir; and finally, generating and executing a reservoir dispatching instruction based on the control value, and storing the water level of the reservoir to not exceed the dynamic value. The problems that a fixed flood control water level method is low in water resource utilization rate and inflexible in dispatching are solved, and flood resource efficient utilization on the premise of flood control safety is achieved.

This invention belongs to the field of recycling and purification technology, specifically relating to a method for recovering the β isomer from a CME solution containing both β and α isomers. The method includes the following steps: concentrating the CME solution containing both β and α isomers and dissolving it in methanol with trichloroacetic acid to form a salt, followed by cooling and crystallization and filtration to obtain the trichloroacetic acid salt of the CME β isomer; then, ionizing the trichloroacetic acid salt of the CME β isomer in methanol with ammonia to obtain the CME β isomer. By reacting trichloroacetic acid with the α and β isomers of CME to form a salt, the different solubilities of the trichloroacetic acid salts of the α and β isomers are utilized to separate the trichloroacetic acid salt of the CME β isomer, and then ionizing the trichloroacetic acid salt of the CME β isomer with ammonia, the CME β isomer is recovered.

The present application relates to a kind of methods and devices for preparing anhydrous hydrogen fluoride and sulfuric acid.The method comprises the following steps: removing impurities from industrial waste fluorosulfuric acid, mixing it with concentrated sulfuric acid to form a pretreated mixture; using microwave heating to rapidly heat the reactor, a static bed is arranged in the reactor; the pretreated mixture is passed into the upper surface of the static bed in the preheated reactor, the pretreated mixture is heated by microwave, and hydrogen fluoride and sulfur trioxide gas are generated by the decomposition of the pretreated mixture; hydrogen fluoride and sulfur trioxide are mixed and passed into low-temperature concentrated sulfuric acid to absorb sulfur trioxide gas; then passed into low-temperature condensing equipment, and liquid hydrogen fluoride is collected; the liquid hydrogen fluoride is purified by rectification; and the concentrated sulfuric acid that absorbs sulfur trioxide is evaporated and concentrated.The advantages are: using a "static bed + material" double-wave absorption system, achieving more uniform and stable temperature field distribution in the liquid layer of industrial waste fluorosulfuric acid, making the pyrolysis of industrial waste fluorosulfuric acid more efficient and stable.

The invention relates to a method for preparing calcium fluoride from household garbage incineration fly ash and application, a three-stage countercurrent washing device is utilized, and the method comprises the following steps that S1, the fly ash is collected for pulping; s2, the fly ash obtained after pulping is put into a third-stage countercurrent washing device to be sequentially subjected to first-stage washing, second-stage washing and third-stage washing, third-stage washing liquid generated after third-stage washing is used for second-stage washing, and second-stage washing liquid generated after second-stage washing is used for first-stage washing; s3, primary water washing liquid generated after primary water washing enters a water treatment system, acid is added to adjust the PH, then a capturing agent is added for a reaction, and first wastewater is formed; s4, adding sodium fluoride into the first wastewater, and precipitating to generate calcium chloride and calcium fluoride; and S5, calcium fluoride is washed with water to remove impurities, second wastewater and calcium fluoride are formed, and the calcium fluoride is applied to the additive for electrolytic aluminum. The calcium salt in the fly ash is separated to produce calcium fluoride with high added value, waste acid can be cooperatively treated, and the product calcium fluoride is used as an electrolytic aluminum additive.

The invention belongs to the technical field of solid waste recycling. The invention discloses a method for realizing high-value recycling of secondary aluminum ash and synchronous deep defluorination and dechlorination by utilizing hydrothermal synthesis. The method comprises the following steps: firstly, pretreating secondary aluminum ash, then preparing the pretreated secondary aluminum ash and water into slurry, and adding a specific defluorinating agent and a dechlorinating agent into the slurry to construct a synchronous reaction system; the system is subjected to hydrothermal reaction under high-temperature and high-pressure conditions, so that fluorine and chlorine elements are respectively fixed and converted into stable compounds. Solid-liquid separation is carried out after the reaction is completed, an obtained solid product can be used as a raw material for preparing a zeolite molecular sieve or an aluminum-based material, and salt is recovered from a liquid part through evaporative crystallization. According to the method, deep removal of harmful elements and a high-value recycling process of beneficial components are coupled to a single hydrothermal system, and efficient harmless and high-value recycling utilization of the secondary aluminum ash is achieved.

The application discloses a method and system for comprehensively utilizing high-magnesium nickel sulfide ore by a low-temperature oxygen-rich method. The method comprises the following steps: obtaining pre-leaching residue by pre-leaching and magnesium removal with high-magnesium nickel sulfide ore as raw material; obtaining activated ore slurry by mechanically activating the pre-leaching residue; and obtaining a nickel-containing leaching solution by low-temperature oxygen-rich leaching of the activated ore slurry. The application has wide application range, is simple and reliable, easy to control, and low in investment cost, and can convert metals into corresponding products, so that high-magnesium nickel sulfide concentrate can be treated at low cost and high efficiency.

This invention discloses a method and system for co-containment and dynamic monitoring of carbon dioxide in pressurized carbon-fixing backfilling in goaf areas. The method includes: constructing a functional backfill body at a predetermined location in the goaf area to form a sealed space; deploying internal sensors within the sealed space to monitor environmental parameters and CO₂ occurrence status; deploying boundary sensors in the collapse zone, fault zone, and flexural subsidence zone of the overlying strata, as well as on the outside of the functional backfill body, to monitor structural stability and carbon dioxide leakage in real time; performing backfilling construction of the pressurized carbon-fixing backfill body into the sealed space, and simultaneously injecting carbon dioxide gas into the sealed space; transmitting the data collected by the sensors to a processing terminal to calculate the real-time carbon fixation amount and carbon fixation rate of the mineralization reaction between the pressurized carbon-fixing backfill body and carbon dioxide. This invention ensures the long-term airtightness and stability of the sealed space.

This invention discloses a method and application for treating moldy corn to synthesize polyhydroxy fatty acids (PHA) using a compound enzyme preparation, relating to the fields of fermentation engineering and waste resource utilization technology. The method for treating moldy corn to synthesize PHA using a compound enzyme preparation includes the following steps: 1) screening and culturing highly efficient halophilic bacteria as inoculum strains for open-enzyme PHA synthesis; 2) pretreating moldy corn with a compound enzyme preparation composed of α-amylase, β-amylase, and glucoamylase; 3) using the moldy corn hydrolysate as a fermentation carbon source, inoculating with PHA-producing halophilic bacteria for open-enzyme fermentation. This invention constructs a complete process system of specific halophilic bacteria screening – moldy corn enzymatic pretreatment – ​​open-enzyme fermentation to synthesize PHA, realizing the resource utilization and high-value utilization of moldy corn. Compared with existing technologies, it has significant economic, environmental, and industrial value, with outstanding comprehensive beneficial effects.

This invention discloses a comprehensive method for recovering valuable metal elements from the neutralized and impurity-removed slag of lepidolite. The method involves obtaining clinker through high-temperature roasting of the slag; obtaining a lithium-containing leachate and aluminum-, calcium-, and iron-containing waste residue through alkaline leaching; extracting lithium from the lithium-containing leachate through resin purification, concentration, and precipitation; leaching the aluminum-, calcium-, and iron-containing waste residue with sulfuric acid and hydrogen peroxide to obtain calcium sulfate and an iron-aluminum-containing aqueous leachate; and recovering aluminum through extraction and ammonium-aluminum crystallization reaction to obtain iron oxide red and ammonium alum products. This method achieves comprehensive recovery of valuable elements such as lithium, iron, aluminum, and calcium from the neutralized and impurity-removed slag of lepidolite. The waste residue and wastewater generated throughout the process are properly utilized, effectively solving the problem of secondary resource utilization of lepidolite neutralized and impurity-removed slag. This achieves the goals of resource utilization, harmlessness, and volume reduction of lepidolite neutralized and impurity-removed slag, aligning with my country's goals of developing a circular economy and energy conservation and emission reduction.

The invention belongs to the technical field of resource recovery and purification, and discloses a method for treating an acidic reaction solution in the production process of 8-hydroxyquinoline, which comprises the following steps of: producing 8-hydroxyquinoline by using hydrochloric acid instead of traditional sulfuric acid, obtaining the acidic reaction solution after the reaction is finished, and deacidifying; adding an organic solvent into the deacidified acidic reaction liquid, then adding a neutralizer to adjust the pH value, carrying out extraction, transferring 8-hydroxyquinoline into an organic phase, leaving an intermediate layer and sodium chloride brine, and carrying out filter pressing treatment on the intermediate layer; performing oil-water separation on the sodium chloride saline water, the intermediate layer pressure filtrate and the organic phase containing the 8-hydroxyquinoline through a phase separation tower; performing purification treatment on sodium chloride brine obtained by oil-water separation, performing atmospheric distillation on an organic phase obtained by oil-water separation to obtain an organic solvent, and performing reduced pressure distillation to obtain 8-hydroxyquinoline. The method has remarkable economic benefits and environmental benefits, and an efficient and feasible technical path is provided for green and sustainable development of 8-hydroxyquinoline production.

The application discloses a method for high-temperature and high-pressure collaborative treatment of red mud, coal or coal gangue, and belongs to the field of resource utilization of red mud, coal or coal gangue. The method comprises the following steps: mixing red mud, coal or coal gangue and water, and then placing the mixture into a high-temperature and high-pressure device; introducing an oxygen-containing gas or adding an oxidant; under the high-temperature and high-pressure conditions, mineral decomposition and reconstruction of the red mud and the coal or coal gangue occur, acidic substances produced by oxidation of sulfide minerals and carbon-based minerals in the coal or coal gangue and alkaline substances in the red mud are subjected to neutralization reaction; and after desalination of reaction products of the red mud and the coal or coal gangue, the reaction products are used as ecological matrix soil. The method disclosed by the application accelerates decomposition of alkaline minerals such as nepheline in the red mud and release of alkali under high-temperature and high-pressure conditions, and accelerates oxidation of carbon-based minerals and sulfide minerals in the coal or coal gangue and transformation of humus and humic acid, neutralizes alkaline substances and acidic substances produced in the reaction, realizes rapid dealkalization of the red mud, controls the degree of oxidation of the carbon-based minerals, and improves the content of organic matter in the reaction products, so that full resource utilization and ecological utilization of the red mud, the coal or the coal gangue are realized.

The application provides a kind of secondary aluminum ash and desulfurization ash resource system and method of synergistic treatment, the system includes along material flow closed circuit connection's pretreatment and batching system, thermal treatment system, flue gas purification and resource recovery system;Method includes: secondary aluminum ash is washed with water after and desulfurization ash is dosed according to calcium aluminum molar ratio 0.8-1.2, simultaneously generates the first flue gas containing ammonia;Mixed material is calcined to generate calcium aluminate product, simultaneously generates process flue gas rich in sulfur, process flue gas is reacted after dust removal, impurity removal with the first flue gas in liquid phase system and crystallization ammonium sulfate product is prepared, dust removal ash returns dosing.The application is converted into calcium aluminate and ammonium sulfate product by multistage synergy and full closed circuit circulation design, realizes that harmful substance is completely decomposed, pollutant near zero emission and resource depth recovery, and has significant environmental and economic benefits.

This invention provides a CMA environmentally friendly de-icing agent prepared from magnesite tailings and waste acetic acid, along with its preparation method and application. Belonging to the field of industrial solid waste treatment and utilization technology, it includes the following raw materials in parts by weight: 50-60 parts magnesite tailings, 40-80 parts waste acetic acid, 5-10 parts glacial acetic acid, 20-50 parts calcium oxide, and 1-5 parts magnesium oxide. By co-utilizing two industrial wastes—difficult-to-treat magnesite tailings and industrial waste acetic acid—a high-performance, low-corrosion CMA de-icing agent is prepared without deep purification. This achieves low-cost resource utilization of industrial waste and produces a competitive, environmentally friendly de-icing agent product, simultaneously solving multiple industrial and environmental problems such as solid waste accumulation, waste acid disposal, and the high cost and pollution of de-icing agents.

The application discloses a sludge flash drying system integrated with a fluidized bed gasification furnace, which comprises a wet sludge conveying subsystem, an outlet of the wet sludge conveying subsystem is communicated with an inlet of a sludge flash drying subsystem, an outlet of the sludge flash drying subsystem is connected with an inlet of a gas-solid separator, an outlet of the gas-solid separator is communicated with an inlet of a dry sludge conveying subsystem, an outlet of the dry sludge conveying subsystem is communicated with an inlet of a fluidized bed gasification furnace subsystem, an outlet of the fluidized bed gasification furnace subsystem is communicated with a gas-gas heat exchanger, an outlet of the gas-gas heat exchanger is communicated with an inlet of an external combustion chamber, and an outlet of the external combustion chamber is communicated with a drying gas inlet of the sludge flash drying subsystem. The application recycles the heat value generated in the sludge gasification process for sludge flash drying, so that the energy consumption is low, and the economic cost of system operation is reduced. Due to the high sludge drying efficiency and the strong sludge disposal capacity, the resourceization, reduction and efficient clean utilization of sludge can be realized.

The application discloses a method for calcining cement raw materials in a methane atmosphere and co-producing carbon materials. The method comprises the following steps: mixing cement raw materials with solid waste in a reactor under a methane atmosphere, and calcining to obtain cement clinker, carbon monoxide, hydrogen and solid carbon materials; the solid waste is selected from at least one of the following: blast furnace slag, high-iron fly ash, steel slag, stainless steel slag, iron oxide scale and red mud. The method effectively reduces carbon emissions in the cement production process, and simultaneously produces synthesis gas and carbon materials, greatly improving the economic efficiency and environmental benefits of the process. In addition, the catalyst can come from by-products of the steel and aluminum smelting industry, realizing waste resource utilization. The technology provides a new way for the green and low-carbon transformation of the cement industry.

The invention discloses an integrated device and method for removing hardness and COD (Chemical Oxygen Demand) of high-salt-content wastewater, and solves the problems of high construction cost, large occupied area, multiple control points and poor water quality fluctuation adaptability in the existing high-salt-content wastewater softening treatment process. The upper end of the outer bin body is open, and the two first water pumps are arranged outside the outer bin body; two parallel vertical partition plates are arranged in the outer bin body and divide the interior of the outer bin body into three parallel areas, namely a first area located in the middle and two second areas located on the two sides of the first area respectively. A biochemical component is arranged in the first area and is used for removing COD (Chemical Oxygen Demand), ammonia nitrogen, total phosphorus and suspended matters in the to-be-treated high-salinity wastewater; a softening assembly and an oxidizing assembly are arranged in the second area; the softening assembly is used for removing the hardness of calcium and magnesium in the to-be-treated high-salt-content wastewater; and the oxidation assembly is used for removing COD in the to-be-treated high-salt wastewater again.

The utility model discloses a kind of wastewater denitrification devices for recirculating aquaculture system, it is related to aquaculture wastewater treatment technical field, device includes: aquaculture solid waste collection pipeline is connected wet underground layer anaerobic hydrolysis zone through feed pipe, first water distribution pipe is laid in wet underground layer anaerobic hydrolysis zone and is communicated with feed pipe, wet underground layer anaerobic hydrolysis zone is also provided with sludge discharge pipe, the upper part of wet underground layer anaerobic hydrolysis zone is laid combination filler, water inlet pipe is connected the middle part of wet underground layer anaerobic hydrolysis zone and is connected with second water distribution pipe, the upper part of wet underground layer anaerobic hydrolysis zone is provided with wetland upper layer filler area, the upper part of wet underground layer anaerobic hydrolysis zone is provided with wetland upper layer filler area, wetland upper layer filler area fills wetland upper layer filler, the surface of wetland upper layer filler is planted wetland plant and lays water collection pipe, water collection pipe is connected outlet pipe. The device realizes the utilization of aquaculture solid waste and wastewater denitrification treatment, improves the water resource recycling rate of recirculating aquaculture system.

This invention belongs to the field of pest control and biomaterial application technology, specifically relating to a termite bait based on cellulose waste and its high-temperature, high-pressure preparation process and application. The bait uses sugarcane bagasse powder and bark powder as the main cellulose matrix, supplemented with glucose, xylose, casein, and granulated sugar as attractants, and incorporates a chitosan-graphene oxide composite nano-insecticide. This bait exhibits high stability in humid environments, is not prone to mold, and maintains its attractant properties and efficacy for a long period. Indoor and buried tests have verified that the prepared bait significantly increases the termite feeding rate and mortality rate compared to the control group, demonstrating a comprehensive advantage of strong attractant properties, slow-release effect, and environmental friendliness.

This application provides a quartz micropowder and its growth method, wherein the size of the quartz micropowder is 180-400 micrometers. The quartz micropowder provided in this application has a size of 180-400 micrometers, which facilitates processing into various quartz devices. This effectively meets the size requirements of quartz micropowder for quartz device processing, not only enabling the reuse of quartz waste but also alleviating the problem of insufficient production of high-purity quartz materials.

The invention provides a combined membrane method resourceful treatment device and process for a desulfurization solution, and belongs to the technical field of industrial wastewater treatment. The device comprises a plate-and-frame filter press, a homogeneous membrane / reverse osmosis membrane, a nanofiltration membrane, an activated carbon decoloration tank, an evaporator, a first cooling pelleter, an ultrasonic-assisted ozone centrifugal reactor, a sulfur melting kettle, a second cooling pelleter, an ultrafiltration membrane and a bipolar membrane. By means of the synergistic effect of ultrasonic cavitation and ozone oxidation, thiosulfate is efficiently decomposed, elemental sulfur is directionally generated, and a high-quality sulfur product is obtained by matching with refining of the sulfur melting kettle; meanwhile, thiocyanate and sulfate / thiosulfate are accurately separated through a nanofiltration device, a high-purity thiocyanate product is produced through activated carbon decoloration and evaporation concentration, then bipolar membrane electrodialysis is used for directly converting sulfate into recyclable acid and alkali, various high-value resources are systematically recycled, and the method is suitable for industrial production. The problems of low resource recovery rate and insufficient product purity of the traditional process are solved.

The present application provides a process for treating waste water generated in the process of preparing epichlorohydrin by direct oxidation method, which comprises a pretreatment section, a main reaction section and a deep treatment section; the pretreatment section comprises, in sequence, an adjusting unit, a tubular microfiltration unit, a mild wet oxidation unit and a neutralization unit, the main reaction section comprises an electrodialysis unit, an anaerobic biochemical unit, a biological reinforcement unit, an ozone catalysis I unit, a concentration and salt production system and a methane storage unit; the deep treatment section comprises, in sequence, an aerobic biochemical unit, an ozone catalysis II unit and a BAF unit, and the anion exchange membrane of the electrodialysis unit is a modified anion exchange membrane. The present application solves the problem of high toxicity of chlorine-containing organic matter in waste water by coupling mild wet oxidation with electrodialysis, and realizes the separation of organic matter and salt in waste water, wherein the electrodialysis uses a modified anion exchange membrane, and the anti-pollution capacity is greatly increased. The present application realizes zero discharge of waste water, and has the advantages of low operation cost.

The invention relates to a static sintering process and system for preparing high-whiteness and high-purity aluminum hydroxide, and the static sintering process comprises the following steps: firstly, taking a raw material crushed to process control fineness as a pre-powder material, carrying out raw material preparation and blank forming on the pre-powder material to obtain a blank, sintering the blank to obtain clinker, carrying out clinker dissolution on the clinker to obtain slurry, and sintering the slurry to obtain the high-whiteness and high-purity aluminum hydroxide. Carrying out slurry desilication, carbon component reaction, hydrogen-aluminum separation and drying on the slurry to prepare high-whiteness and high-purity aluminum hydroxide; wherein the raw materials comprise solid wastes such as fly ash; the blanks are sintered into six polygon prism-shaped blanks which are stacked in two rows and three groups, the blanks are roasted in an industrial tunnel kiln in a temperature programming mode, and the roasting temperature ranges from 800 DEG C to 1100 DEG C. According to the invention, solid wastes such as fly ash, coal gangue, carbide slag and the like, pulverized coal and sodium carbonate are crushed into materials with the same fineness, high-whiteness and high-purity aluminum hydroxide can be obtained through an alkaline static sintering process, the recovery rate of aluminum in the solid wastes is about 90%, and harmless, resource and synergistic utilization of the solid wastes such as fly ash and the like is realized.

This invention provides a cultivation substrate, its preparation method, and its application, belonging to the field of tailings utilization technology. The cultivation substrate, by weight, comprises: 1-7 parts of an algae-bacterial symbiosis, 1-12 parts of modified illite tailings, and 1-22 parts of sheep manure; the algae-bacterial symbiosis includes *Chlorella vulgaris* and *Streptomyces flavus*. The cultivation substrate provided by this invention meets the requirements of standard NY / 2118-2012 for vegetable seedling substrates, improving soil physicochemical properties while also promoting plant growth and enhancing plant stress resistance. The cultivation substrate provided by this invention has advantages such as environmental friendliness and sustainable utilization, aligning with the development trend of modern agriculture, and providing a new direction for the resource utilization of illite tailings; it also achieves efficient recycling of mine tailings and agricultural waste, providing an innovative path for green agricultural development and resource utilization.

The invention belongs to the technical field of chemical wastewater treatment and recycling, and particularly relates to a method for preparing fumaric acid by treating maleic acid wastewater. The pretreated maleic acid wastewater passes through at least two stages of fixed bed reactors connected in series, the fixed bed reactors are filled with a thiourea supported catalyst, maleic acid is subjected to a continuous isomerization reaction, and a fumaric acid product is obtained. The thiourea supported catalyst takes mesoporous silica or alumina as a carrier, and thiourea groups are immobilized on the surface of the carrier through covalent bonds. The invention relates to an integrated system for realizing continuous catalytic reaction, intermediate product separation and efficient utilization of a catalyst by using a thiourea supported catalyst, and particularly relates to an integrated system for realizing continuous catalytic reaction, intermediate product separation and efficient utilization of the catalyst by using a multistage fixed bed reactor to catalyze epoxiconazole to produce maleic acid-containing wastewater through isomerization.

To address the problems of existing technologies, this invention provides a highly stable catalyst with the structural formula Au / CuO@Cu-NaY. This catalyst is prepared by the following method: Rice husks are cleaned at room temperature to obtain substance A. Substance A is calcined to obtain substance B. Substance B is dissolved in NaOH solution to obtain mixture C, and NaAlO2 is dissolved in deionized water to obtain solution E. A Cu source is added to mixture C to obtain mixture D. Mixture D is added to solution E to obtain mixture J. Mixture J is aged to obtain mixture K. Mixture K is hydrothermally treated to obtain mixture L. Mixture L is washed with water to obtain product Cu-NaY. Cu-NaY is mixed with Au / CuO and ground to obtain the highly stable catalyst. The catalyst prepared by this invention maintains high catalytic activity and selectivity while overcoming the problems of catalyst deactivation and poor stability.

The invention discloses a high-purity Ca-MOF fluorine fixing agent and a preparation method and application thereof.The preparation method comprises the steps that water is added into ardealite for size mixing, the pH value is adjusted, then filtering is conducted, a calcium ion solution is obtained, then an organic ligand and a solvent are added into the calcium ion solution, and MOF-1 is obtained through a reaction; and then mixing the MOF-1 with an activating agent, and activating to obtain the high-purity Ca-MOF fluorine fixing agent. Calcium ions are taken as a metal center to react with an organic ligand, and a crystal material with a three-dimensional porous structure is formed through in-situ polymerization self-assembly, so that a space is provided for precipitation reaction of the calcium ions and fluorine, and efficient capture and stable curing of the fluorine ions are realized.

The invention relates to the technical field of wastewater treatment, in particular to an efficient and environment-friendly butyl acrylate high-salinity wastewater treatment process which comprises the following steps: S1, acidification replacement, S2, extraction separation, S3, rectification and recovery, S4, refining and purification, S5, neutralization and adjustment, and S6, evaporative crystallization. According to the method, efficient and rapid separation of the oil phase and the water phase is realized by adopting a separation scheme of combining the centrifugal extractor and the molecular sieve membrane, meanwhile, the moisture content in the organic phase is effectively controlled, and the organic phase is deeply refined by adopting the continuous ion exchange equipment and the macroporous strong-acid cation exchange resin, so that the separation efficiency is improved. Trace sodium ions and other impurities can be specifically adsorbed and removed, so that the purity of the recycled acrylic acid product is improved in a breakthrough manner, and the recycling requirement of a high-end production device is met.

The invention belongs to the technical field of organic room-temperature phosphorescent materials, and particularly relates to a chitin nanofiber phosphorescent film and a preparation method thereof. According to the invention, chitin is subjected to deacetylation treatment to obtain a partially deacetylated chitin fiber material with a deacetylation degree of 25-80%, and amino groups on the surface of the chitin fiber are exposed to improve the spatial conjugation ability of the chitin fiber. Then, a part of the chitosan fiber material is soaked in an organic carboxylic acid solution to form a hydrogen bond and ionic bond dual non-covalent cross-linked network, amino groups on the surface of the part of the chitosan fiber are promoted to be protonated, an ionic bond rigid environment with shorter bond length and stronger bond energy is constructed, non-radiative transition of triplet excitons is effectively inhibited, and the non-radiative transition of the triplet excitons is inhibited; the chitin nanofiber phosphorescent film is obtained. The technical problem that an existing natural polymer chitin material is limited in space conjugation capacity and poor in triplet exciton non-radiative transition inhibition capacity, and consequently the natural phosphorescence performance is poor is solved.

The present application relates to the technical field of waste gas treatment, in particular to a water-gas integrated treatment method for phenolic resin acid industrial waste gas. The water-gas integrated treatment method comprises the following steps: S1: spraying and absorbing the phenolic resin acid industrial waste gas by using an alkaline biochemical sludge mixed solution containing aerobic bacteria, and then discharging; S2: adding an acid solution containing a surfactant to the discharged biochemical sludge mixed solution, precipitating, and separating the precipitate after cross-linking reaction to obtain phenolic resin spherical particles. The water-gas integrated treatment method can not only reduce the waste gas treatment cost, but also improve the treatment efficiency, is simple to operate, suitable for industrial production, and can recover the phenolic resin spherical particles, realize resource utilization and high-value utilization, and the prepared phenolic resin spherical particles can be applied to the field of preparing phenolic molding compounds or electrode materials.

The invention relates to a raw material preparation method for preparing high-whiteness and high-purity aluminum hydroxide by using solid waste, which comprises the following steps: pretreating, proportioning and homogenizing raw materials to obtain a homogenized raw material, and the raw materials comprise fly ash, coal gangue, pulverized coal, calcium-containing solid waste and sodium carbonate; wherein the pretreatment comprises the following steps: crushing the raw materials, and controlling the crushing granularity of the process to be 120-220 meshes to form pre-powder; the batching comprises the steps of metering the pre-powder according to a process ratio, and batching to form a raw material; the homogenization comprises high-speed dry homogenization and low-speed wet homogenization, the raw material is firstly added into a high-speed dry homogenization machine for high-speed dry homogenization, and then the raw material is subjected to low-speed wet homogenization to obtain a homogenized raw material. According to the invention, solid wastes such as fly ash, coal gangue, carbide slag and the like, pulverized coal and sodium carbonate are crushed, a fully and uniformly mixed homogenized raw material is obtained through microcomputer metering automatic batching accurate control, dry homogenization and wet homogenization treatment, high-whiteness and high-purity aluminum hydroxide can be prepared through a self-heating blank sintering method, and resource utilization of fly ash is realized.