492 results about "Polymeric adsorbent" patented technology

The invention discloses a method for deeply removing readily oxidizable substances in high-purity electronic-grade phosphoric acid, which deeply removes the readily oxidizable substances in the high-purity electronic-grade phosphoric acid in a mode of combining ozone oxidation and resin adsorption to obtain a high-purity electronic-grade phosphoric acid finished product with extremely low readily oxidizable substance concentration. The specific process mainly comprises the following three steps: S1, introducing ozone gas at a certain temperature to oxidize readily oxidizable substances such as phosphorous acid and hypophosphorous acid in phosphoric acid into phosphoric acid so as to reduce the concentration of the readily oxidizable substances; s2, feeding the phosphoric acid subjected to ozone oxidation into an adsorption reactor to be in contact with an adsorbent, and further removing residual readily oxidizable substances in the phosphoric acid; and S3, filtering the phosphoric acid subjected to adsorption treatment through a filter element for separation, and removing residual small particles and impurities to obtain the electronic-grade phosphoric acid with readily oxidizable substances removed. The method is simple in process, controllable in condition, convenient to operate, safe and environment-friendly, does not need to add an additional solvent, avoids introduction of new impurities, reduces secondary pollution, and is suitable for preparing high-purity electronic-grade phosphoric acid.

The invention discloses a polyester fabric printing and dyeing water-saving automatic treatment system based on digital monitoring. According to the system, a printing and dyeing execution device, a filtering regeneration device, a data acquisition device and a system control device are integrated through modular design, temperature, pressure, flow velocity and resin saturation data in the printing and dyeing process are obtained in real time through a sensor network, and a dynamic correlation function is constructed based on the system control device to generate an accurate regulation and control instruction. Uniformity control of wastewater circulation, stability optimization of resin adsorption efficiency and remarkable improvement of the water resource utilization rate are achieved, and the problems that in a traditional process, the manual dependence degree is high, and resource waste is serious are solved.

The invention relates to the technical field of industrial waste treatment and silver nitrate preparation, in particular to a method for preparing high-purity silver nitrate from silver-containing waste. The method comprises the following steps: reducing the silver-containing waste by adopting a liquid phase reduction method, pickling to remove impurities, putting the silver-containing waste into a medium-frequency induction furnace, performing high-temperature smelting and ingot casting, performing electrolytic purification to obtain crude silver powder, and performing smelting and ingot casting on the crude silver powder to obtain a raw material national standard No.1 silver ingot for preparing silver nitrate; the method comprises the following steps: putting a national standard No.1 silver ingot and a nitric acid solution into a reaction kettle according to a certain proportion for dissolving silver, carrying out adsorption and impurity removal on a dissolved solution through ion exchange resin, carrying out adsorption and impurity removal on a primary filtrate through chelating type adsorption resin, and carrying out centrifugation, evaporative crystallization, drying and other processes on a secondary filtrate to obtain the high-purity silver nitrate. The method is easy to implement, the recovery rate of the silver-containing waste materials is high, the high-purity silver nitrate product can reach the premium-grade pure standard, and the technological process is environmentally friendly.

The invention relates to the technical field of heavy metal recovery, in particular to a method for recovering heavy metal from metal waste. Comprising the following steps: preparing silicon-tungsten composite acid salt; preparing heteropolyacid powder; preparing a resin heteropolyacid composite material; heavy metals are recovered from metal wastes by a resin adsorption method. The silicon-tungsten composite acid salt is prepared under mild conditions through reaction of sodium metasilicate, sodium tungstate and potassium chloride, the operation is simple, the conditions are easy to control, the silicon-tungsten composite acid salt has rich active sites and a large specific surface area, the surface of the silicon-tungsten composite acid salt carries negative charges, and the surface of the silicon-tungsten composite acid salt is not prone to damage. Compared with a traditional chemical precipitation method, the method for extracting the heavy metal by using the silicon-tungsten composite acid salt does not need to add a large number of chemical reagents, and secondary pollution is reduced.

The present application relates to wastewater treatment technical field, specifically to a kind of ammonia nitrogen wastewater treatment method, the composite modified zeolite material in the present application has excellent physical adsorption capacity to ammonia nitrogen by virtue of its unique pore structure and surface properties, ammonia nitrogen molecules in wastewater can be quickly captured, then through the synergistic effect of composite photocatalyst under light and ultrasonic, strong oxidizing free radicals are generated, ammonia nitrogen molecules not completely adsorbed by zeolite material are deeply degraded, through the synergistic effect of adsorption and photocatalysis, the removal efficiency of ammonia nitrogen is significantly improved;After adsorption and photocatalytic treatment, the ammonia nitrogen concentration in wastewater has been greatly reduced, and resin adsorption treatment is used as a subsequent step, which can selectively adsorb residual trace amounts of ammonia nitrogen and other impurities, thereby realizing deep purification of wastewater and ensuring that the effluent quality meets or exceeds relevant discharge standards.

The utility model provides a deep defluorination device for aluminum resin, which is characterized by comprising a first-stage defluorination device, a second-stage defluorination device, a third-stage defluorination device and a solution callback device, the primary defluorination device comprises a first dosing tank, a first regulating tank, a first flocculation tank and a first sedimentation tank; the secondary defluorination device comprises a second dosing tank, a second regulating tank, a second flocculation tank and a second sedimentation tank; the three-stage defluorination device comprises a resin adsorption column; and the solution callback device comprises a third regulating tank, a third flocculation tank and a third sedimentation tank. According to the utility model, the fluorine content in the wastewater is stably and deeply removed, the increasingly strict discharge standard is met, the resource utilization efficiency is obviously improved, the overall cost of wastewater treatment is reduced, and an efficient, economical and environment-friendly new scheme is provided for the field of industrial wastewater treatment.

The invention relates to the technical field of wastewater treatment, in particular to an ammonia-nitrogen wastewater treatment method.A composite modified zeolite material has excellent physical adsorption capacity on ammonia nitrogen by means of the unique pore structure and surface property of the composite modified zeolite material, ammonia nitrogen molecules in wastewater can be rapidly captured, and the ammonia nitrogen wastewater treatment effect is improved. Then, under the synergistic effect of illumination and ultrasonic waves, free radicals with strong oxidizing property are generated through the composite photocatalyst, ammonia nitrogen molecules which are not completely adsorbed by the zeolite material are deeply degraded, and the removal efficiency of ammonia nitrogen is remarkably improved through the synergistic effect of adsorption and photocatalysis; after adsorption and photocatalysis treatment, the concentration of ammonia nitrogen in the wastewater is greatly reduced, then resin adsorption treatment is adopted as a subsequent step, and residual trace ammonia nitrogen and other impurities can be selectively adsorbed, so that deep purification of the wastewater is realized, and the effluent quality is ensured to reach or be superior to related emission standards.

According to the organic wastewater energy-saving treatment system provided by the invention, organic matters in organic wastewater can be greatly reduced through oil separation treatment of the reservoir and filtration and coalescence separation treatment of the filtration coalescence device, so that the purpose of recovering the organic matters is achieved; through multi-effect evaporation of the I-effect falling film evaporator, the II-effect falling film evaporator and the forced circulation evaporator, generated steam is recycled through the MVR compressor, cyclic utilization of secondary steam energy is achieved, and energy consumption is reduced; and the wastewater can be recycled through a multi-effect evaporation and resin adsorption treatment mode, and the recovery rate reaches 96%. The steam consumption for wastewater treatment can be reduced by 0.90 t / m < 3 >.

The invention belongs to the technical field of waste acid recovery and utilization, and provides a waste sulfuric acid recovery process based on isopropyl bromide recovery, the recovery process comprises the following specific steps: step 1, mixing sulfuric acid waste liquid, activated carbon and hydrogen peroxide, heating and stirring to obtain pretreated sulfuric acid waste liquid; step 2, adding an organic solvent into the pretreated sulfuric acid waste liquid for extraction; and step 3, carrying out resin adsorption on the extracted sulfuric acid waste liquid, and then carrying out reduced pressure distillation and concentration to obtain concentrated sulfuric acid. According to the sulfuric acid waste liquid recovery process provided by the invention, the sulfuric acid waste liquid can be well recovered, the environmental pollution is further reduced, and the resource utilization rate is improved.

The present invention relates to the technical field of antibiotic production, and in particular to a dalbavancin intermediate A40926 and a separation and purification method thereof, comprising the following steps: S1, filtering a fermentation broth containing the dalbavancin intermediate A40926 to obtain a collected liquid; S2, adsorbing the collected liquid through a macroporous adsorption resin, eluting with ethanol, and collecting an eluate a having an A40926 unit greater than 100 mg / L; S3, ultrafiltrating and concentrating the eluate a to obtain a concentrated liquid having an A40926 unit of 15,000 to 16,000 mg / L; S4, subjecting the concentrated liquid to a chromatography exchange resin, top-washing with pure water, and gradient eluting with an ammonium acetate-ethanol solution, to collect an eluate b having an A40926 purity greater than 95%; S5, adjusting the pH of the eluate b to 8.0±0.2, adding acetone, adjusting the feed liquid temperature to 2 to 8°C, stirring for 6 to 7 hours, performing crystallization, and filtering and drying to obtain the dalbavancin intermediate A40926.

The utility model relates to the field of hydrometallurgy, in particular to a nickel sulfate solution deoiling device. Comprising a standing tank connected with a production process outlet end, one end of an oil removal device is connected with the standing tank, the other end of the oil removal device is connected with a resin adsorption column, the resin adsorption column is connected with a regeneration tank, and the regeneration tank is connected with a solution storage tank. According to the oil removal device arranged in the device, oil can be treated step by step according to different existing forms and physical properties of oil in nickel sulfate through internal fiber cotton filtration, resin adsorption and filter screen filtration, and compared with the prior art, the oil removal effect is better; the device is provided with the oil-water separator and the bag filter, so that the oil removal effect can be further improved, and impurities in the nickel sulfate solution can be separated.

The invention discloses a method for extracting ginsenoside based on a supercritical extraction method, and relates to the technical field of traditional Chinese medicine extraction. The ginsenoside is extracted through a supercritical extraction method, the extraction process is convenient and efficient, the purity of the ginsenoside is high, organic solvent residues are avoided, the method is green and environmentally friendly, carbon dioxide can be recycled, and the operation cost is low; through degreasing pretreatment, fat-soluble components in ginseng powder are removed, the extraction purity of saponin is increased, the solid loading capacity of supercritical extraction is reduced, the mass transfer resistance is reduced, and the extraction efficiency is improved; the ginsenoside is purified in a post-treatment mode of resin adsorption and elution, polar impurities can be further removed, glutamine is adopted for surface functionalization of the resin, acylamino and carboxyl are introduced to the surface of the resin and can form hydrogen bonds with phenolic hydroxyl groups in the ginsenoside, functional adsorption is achieved, meanwhile, impurities are removed, and the content of the ginsenoside is increased. Reaction conditions are simple and mild, and adsorption efficiency is high.

The invention provides a method for recycling battery-grade manganese sulfate from manganese-containing feed liquid. The method comprises the following steps: (1) carrying out resin adsorption on a manganese-containing feed liquid to obtain a nickel-cobalt adsorbate and an adsorbed feed liquid; (2) sequentially carrying out extraction treatment and reverse extraction treatment on the adsorbed feed liquid to obtain a solution containing manganese sulfate and an organic phase after reverse extraction; (3) carrying out evaporative crystallization on the solution containing manganese sulfate to obtain battery-grade manganese sulfate; positive ions in the manganese-containing feed liquid comprise manganese ions, nickel ions, cobalt ions, calcium ions and magnesium ions, and negative ions in the manganese-containing feed liquid comprise sulfate ions; an extraction agent adopted in the extraction treatment process comprises an HBL116 extraction agent. According to the method disclosed by the invention, metal oxidation hydrolysis cannot be caused to generate a third phase, the extraction process is stable, enrichment of a high-concentration manganese sulfate solution is realized, high-purity manganese sulfate crystals with qualified impurities are obtained, and efficient recovery of manganese in a high-calcium-magnesium feed liquid system can be realized; and a complicated recovery process is not needed, so that the cost is lower.

The invention discloses a parameter differential separation process, and relates to the technical field of separation. The defects in the prior art are overcome. The method specifically comprises the following steps: carrying out a generalized separation process by using a parameter differential moving bed, and operating the generalized separation process to eliminate a displacement zone in chromatographic sequential operation; the method comprises the following steps: contacting a mobile-phase liquid feeding solution with solid-phase resin / adsorbent filler through a novel mass transfer equilibrium contact method, and starting to obtain a characteristic separation curve; the multiple components contained in the mobile phase liquid feed solution are separated by a new mass transfer equilibrium contact process such that at least one component contained in the mobile phase liquid feed solution can be adsorbed onto the resin / adsorbent. The method realizes final separation of a large-scale production separation system, improves the maximum mass transfer efficiency, can also be used for a binary separation system in the separation process of glucose and fructose, reduces the consumption of washing liquid, and reduces the final power consumption.

The invention discloses a resin adsorption waste gas treatment evaluation optimization method based on multi-source data fusion, and particularly relates to the field of waste gas treatment.The method comprises the steps of S1, collection area determination, S2, waste gas monitoring sensor deployment, S3, resin data collection, S4, resin data preprocessing, S5, resin treatment effect analysis, S6, numerical treatment effect judgment and S7, real-time optimization. In order to solve the problems that a traditional waste gas treatment monitoring mode is single, evaluation is not accurate, and dynamic optimization cannot be achieved, a first-level collection area and a second-level collection area are divided, multiple sensors are deployed in a targeted mode to collect multi-source data, the multi-source data are preprocessed, and the multi-source data are analyzed and analyzed. The preprocessed data are input into a mathematical model to evaluate the waste gas treatment effect, and when an evaluation index exceeds a threshold value, the system performs early warning and automatically adjusts operation parameters of the adsorption tower, so that multi-source data fusion monitoring, accurate evaluation and intelligent optimization are realized, the treatment cost is reduced, and the treatment effect is improved.

The invention relates to a method for efficiently extracting high-specification battery-grade lithium carbonate, and belongs to the technical field of lithium carbonate preparation. The method comprises the following steps: pretreatment: mixing a lithium-containing solution raw material with liquid caustic soda; extraction: fully mixing the lithium-containing solution with a no-load extraction agent, and performing phase splitting; reverse extraction: conveying sulfuric acid with a certain concentration and a lithium-containing load oil phase through a centrifugal pump respectively, fully mixing in an extraction tank, and splitting phases; calcium and magnesium are removed from the strip liquor, specifically, the strip liquor is adsorbed through resin, calcium and magnesium in the strip liquor are adsorbed and removed, and the resin is recycled through acid-base regeneration and water washing after adsorption saturation; wastewater treatment: firstly recycling an organic extracting agent in a non-dissolved state from the water-phase raffinate in the extraction procedure through an oil separator, and then treating and regenerating through a macroporous resin adsorption tank; precipitating lithium: placing the prepared sodium carbonate solution in a beaker, stirring and heating, slowly dropwise adding the lithium sulfate solution, continuously reacting, and filtering; and washing and drying: filtering, and drying the lithium carbonate obtained after filtering.

The invention relates to the field of sewage treatment, in particular to a treatment method and system for a sludge hydrothermal carbonization solution. The treatment method provided by the invention comprises the following steps: adjusting the pH value of the sludge hydrothermal carbonization solution to 5-6 to obtain an initially adjusted carbonization solution; carrying out hydrolytic acidification reaction on the primarily adjusted carbonized solution to obtain a hydrolytic acidification carbonized solution; carrying out methanogenesis reaction on the hydrolytic acidification carbonization solution to obtain an anaerobic digestion carbonization solution; performing multi-stage anaerobic-aerobic denitrification treatment on the anaerobic digestion carbonization solution to obtain a denitrified carbonization solution; dephosphorizing the denitrified carbonized solution to obtain a dephosphorized carbonized solution; and carrying out resin adsorption on the dephosphorized carbonized liquid, and then discharging the dephosphorized carbonized liquid. The treatment method provided by the invention can effectively remove organic matters and nitrogen and phosphorus compounds contained in the sludge hydrothermal carbonization liquid. The concentrations of various pollutants in the discharged water meet the water quality standard of sewage discharged into urban sewers, and the problem of secondary pollution to the environment caused by wastewater generated by a sludge hydrothermal carbonization technology is solved.

The invention relates to the technical field of non-ferrous metal hydrometallurgy, in particular to a method for separating molybdenum and rhenium from molybdenum smelting waste acid by using resin, which comprises the following steps: adding a phosphorus source into the molybdenum smelting waste acid, and then adjusting the acidity to an acid environment in which the hydrogen ion concentration is greater than or equal to 1mol / L; molybdenum and rhenium in the molybdenum smelting waste acid with the acidity adjusted are separated through weak-base anion exchange resin, and a rhenium product with the lower molybdenum impurity content is obtained. According to the method, the phosphorus source is added into the molybdenum smelting waste acid, so that phosphate ions are hydrolyzed from the phosphorus source, molybdenum can be effectively prevented from being adsorbed by the alkalescent anion exchange resin, the selectivity of the anion exchange resin to rhenium is greatly improved, and the rhenium recovery rate and the molybdenum-rhenium separation effect are improved; the problems that in the prior art, ion exchange resin is difficult to adapt to molybdenum-rhenium separation under the high molybdenum concentration, the rhenium recovery rate is low, the rhenium-molybdenum separation effect is poor, and a high-molybdenum-concentration solution cannot be treated are solved.

The invention discloses a method for extracting ecdysterone from cyanotis arachnoidea by using a deep-eutectic solvent, and belongs to the technical field of ecdysterone extraction. The method comprises the following steps: mixing a deep-eutectic solvent which takes choline chloride and a hydrogen bond donor material as raw materials with water, extracting ecdysterone in roots and stems of Cyanotis arachnoidea to obtain an ecdysterone crude extract, precipitating the ecdysterone crude extract by adding water, filtering, and adsorbing ecdysterone by using macroporous resin. Adding water for elution to obtain a deep-eutectic solvent-water mixed solution, and recovering under reduced pressure to obtain an extraction solvent for cyclic utilization; and eluting by using alcohol with different concentrations to obtain an ecdysterone crude extract, and purifying the crude extract to obtain high-purity ecdysterone. Compared with a conventional extraction method, the process method adopted by the invention has the advantages that the process is simple, efficient, green and environment-friendly, the used eutectic solvent can be recycled, the loss caused by heating volatilization in the extraction process is avoided, the ecdysterone extracted by the method is pure white, the content of ecdysterone can reach 90% or above after simple purification, and the method is suitable for industrial production. After re-purification, the purity of ecdysterone detected by high performance liquid chromatography is up to 98% or above.

The invention discloses a mulberry leaf extract for reducing body weight based on blood sugar regulation and a preparation method thereof, and belongs to the technical field of natural product extraction. The mulberry leaf extract is mulberry leaf DNJ, and the extraction and preparation steps of the mulberry leaf extract comprise pretreatment, composite enzymatic hydrolysis, ultrafiltration purification, resin adsorption and freeze-drying molding. By optimizing enzymolysis conditions and a separation and purification process, the extraction rate (gt; and therefore, a foundation is laid for industrial production. DNJ reduces blood sugar and body weight by promoting secretion of GLP-1, when DNJ is combined with GLP-1RA for use, a remarkable synergistic effect is shown, and the effects of reducing blood sugar and losing weight are further enhanced. The invention provides a natural and safe blood glucose reducing and weight losing active component and a preparation method thereof, provides a novel solution for treating diabetes and obesity, and has important social and economic values.

The invention relates to an explosive wastewater green treatment process which comprises the following steps: S1, a pretreatment stage: pumping collected explosive wastewater into a micro-nano air flotation device to remove suspended solids, oils and surfactants in the explosive wastewater; s2, a resin adsorption stage: pumping the pretreated explosive wastewater into a resin adsorption system, and selectively adsorbing and removing ammonia nitrogen pollutants in the wastewater through resin; s3, a regeneration and desorption stage: carrying out sleeve washing and regeneration and desorption on the resin subjected to adsorption saturation by adopting dilute nitric acid so as to desorb and separate ammonia nitrogen adsorbed in the resin; and S4, a product recycling stage: carrying out impurity removal treatment on a concentrated regeneration desorption solution generated by desorption, and then adjusting the pH value to obtain an ammonium nitrate solution which is recycled in an explosive production process. And S5, a waste liquid treatment stage: adjusting the pH value of the resin adsorption effluent, and conveying the resin adsorption effluent to a sewage station for combined treatment. According to the method, the ammonia nitrogen pollutants in the explosive wastewater can be removed, and meanwhile explosive production raw materials can be recycled.

The invention relates to a cyclic utilization method of a maleic anhydride epoxidation catalyst. The method comprises the following steps: completely introducing a synthesized epoxy succinic acid reaction solution into an anion exchange column, adsorbing anions of a catalyst by using anion exchange resin, leaching the anion exchange column by using pure water, applying leacheate and the adsorbed reaction solution to synthesis of polyepoxysuccinic acid, adding quantitative maleic anhydride and water into a reaction kettle, and reacting for 2-4 hours at the temperature of 60-80 DEG C; and dropwise adding liquid alkali for hydrolysis, adding anion resin adsorbing the catalyst, heating, dropwise adding an aqueous hydrogen peroxide solution, then carrying out suction filtration, separating the anion resin from the epoxy succinic acid reaction solution, and continuously using the obtained anion resin and epoxy succinic acid reaction solution according to the steps to complete the recycling of the catalyst. According to the method, the specific anion resin is used for adsorbing the catalyst in the reaction system, and the catalyst and the adsorption resin can be recycled for multiple times only by adding the resin adsorbing the tungsten and molybdenum catalysts into the reaction system.

The invention relates to the technical field of wastewater treatment equipment, in particular to a chemical industry production wastewater treatment device which comprises a wastewater pumping unit; comprising a stirrer and a flocculation cavity; comprising a second water inlet, an aeration cavity, an aeration module and an electrolysis module; comprising a third drainage pipe, a water inlet cavity and a resin adsorption column; comprising a transparency detection module arranged on a flocculent precipitation unit and a dissolved oxygen concentration detection module arranged on the flocculent precipitation unit, the detection units are respectively arranged on a heavy metal ion content detection module and a chromaticity detection module of the aeration electrolysis unit; and the process determination unit is used for judging whether the flocculation precipitation treatment of the wastewater meets a preset standard or not according to the transparency of the wastewater and judging whether the aeration electrolysis of the wastewater meets the preset standard or not according to the content of heavy metal ions in the wastewater. The chemical wastewater treatment efficiency is improved.

The invention provides a production process of SEMI-G5-grade high-purity NMP (N-Methyl Pyrrolidone), which is characterized in that metal ions, magnetic foreign / non-magnetic foreign particulate matters and the like of conventional industrial-grade NMP are completely removed by adopting a multi-section rectification, resin adsorption and precise filtration process, so that the SEMI-G5-grade NMP reaches the SEMI-G5 grade in an ultra-clean high-purity reagent; and the use requirements on the ultra-clean high-purity NMP in the fields of semiconductors, integrated circuits and novel display are met.

The invention discloses a selective gold extraction process by a thiosulfate method, which comprises the following steps of: adding gold ore and anion exchange resin into an aqueous solution of a leaching agent, and stirring and leaching to obtain ore pulp containing gold-loaded resin; the leaching agent comprises thiosulfate, copper salt and ammonia water; separating the gold-loaded resin from the ore pulp, and desorbing the gold-loaded resin by adopting a desorption agent to obtain a gold-rich desorption solution; and adding dithionite into the gold-rich desorption solution for reduction to obtain an elemental gold product. According to the process disclosed by the invention, resin adsorption and recovery are synchronously realized during gold leaching, and coadsorption of copper is avoided, so that gold can be enriched by adopting the gold-loaded resin through one-section desorption, and the gold extraction process flow is greatly simplified. In addition, the process is high in gold leaching rate, short in leaching time, low in agent consumption and low in leaching cost. In addition, the resin can be directly and circularly used for gold leaching without regeneration, the reduction barren solution can be circularly used for desorption of the gold-loaded resin by supplementing a small amount of desorption agent, and the recovery cost is low.

The invention discloses a process method and a process device for deep treatment of organic waste sulfuric acid, and aims to solve the problems of corrosion, high salt content, poor concentration effect and the like in a high-concentration waste sulfuric acid (the concentration of sulfuric acid is 30-60%) treatment system, a high-concentration ozone oxidation-ceramic ultrafiltration membrane-resin bed adsorption process is adopted to realize efficient degradation and separation of organic matters in waste acid, and the treatment efficiency is improved. The resource recovery of the waste sulfuric acid is realized; aiming at the problems that solid waste in the sulfuric acid industry has complex salt components (such as sodium salt and ferric salt), the generation amount is large, the absorption treatment is difficult, the economic benefit is poor and the like, an ultrafiltration + nanofiltration + resin adsorption + reverse osmosis pre-concentration-evaporation / waste heat recycling cascade concentration technology is developed, acid wastewater treatment is carried out, and electricity, heat and water integrated energy efficient utilization of the system is realized.

The invention discloses a method for efficiently separating manganese, iron and aluminum in manganese oxide leachate step by step and efficiently recovering manganese, iron and aluminum, which comprises the following steps: by taking manganese dioxide and manganese slag leachate as a raw material, adjusting the acidity pH of the solution to be 1-2, adsorbing and removing iron ions by using resin, then adjusting the pH of the solution to be 2-4, and adsorbing and removing aluminum by using resin. And finally, extracting and separating to obtain a manganese-containing solution. Iron and aluminum on the chelate resin can be desorbed by hydrochloric acid, and the resin can be recycled. According to the method, manganese, iron and aluminum in the manganese oxide residue leaching solution are effectively separated and recycled through combination of ion exchange and an extraction method, manganese ions are selectively separated from the solution, separation of manganese from impurity elements such as aluminum and iron is achieved, the content of the impurity elements such as iron and aluminum in the manganese solution is reduced, damage of a traditional precipitation method to manganese is avoided, and the method is suitable for industrial production. The purity of manganese is integrally improved, and technical support is provided for preparation of high-purity manganese. Meanwhile, iron and aluminum elements in the solution can be effectively recycled.

The invention provides a resin tower regeneration cycle optimization method based on an AI algorithm. The method comprises the following steps: S1, continuously monitoring the calcium and magnesium ion concentration of salt water at an outlet of a resin tower on line; s2, collecting operation parameters associated with the adsorption process of the resin tower, wherein the operation parameters comprise the salt water double-alkali excess alkali amount, turbidity, pH, ORP, flow, temperature and resin tower pressure difference; s3, constructing a resin adsorption capacity dynamic prediction model and a resin tower outlet calcium and magnesium content dynamic prediction model based on the calcium and magnesium ion concentration monitored in the step S1 and the operation parameters collected in the step S2; and S4, constraint conditions are set through a multi-objective optimization algorithm, a regeneration opportunity decision matrix is generated based on the real-time prediction data of the two dynamic prediction models constructed in the step S3, and the constraint conditions are used for judging whether a resin tower regeneration program is triggered or not. Dynamic optimization of the regeneration period of the resin tower can be realized, the quality of saline water is guaranteed, the regeneration frequency and material consumption are reduced, the production cost of an enterprise is reduced, and the operation efficiency of the resin tower is improved.

The invention belongs to the technical field of traditional Chinese medicine extraction, and particularly relates to a coptis chinensis extraction process which comprises the following specific steps: coptis chinensis pretreatment: selecting dried coptis chinensis rhizomes, removing impurities and mildewed parts, washing the treated coptis chinensis twice with deionized water, removing surface dust, drying in a drying oven at 50-60 DEG C until the water content is less than 5%, and taking out the coptis chinensis; the dried coptis chinensis is smashed through a smashing device, the smashed coptis chinensis is sieved through a 80-100-mesh sieve, and uniform fine powder is obtained.In the coptis chinensis extraction technology, interference of fat-soluble impurities is reduced through degreasing pretreatment, the subsequent resin adsorption efficiency is improved, pigment and polar impurities can be selectively adsorbed through decoloration of resin, effective ingredients such as alkaloid can be reserved, and the extraction efficiency of coptis chinensis is improved; small molecular impurities can be accurately removed through a membrane separation technology, traditional activated carbon adsorption is replaced, loss of effective components is reduced, finally, efficient separation and purification are conducted through an acid-base precipitation method, and water-soluble impurities are synchronously removed.