353 results about "Ferrous sulphate" patented technology

The invention relates to a special fertilizer suitable for saline-alkali soil and a preparation method thereof. The fertilizer is granular and has a multi-layer structure which is sequentially arranged from inside to outside: a nutrition core layer, a controlled release film layer, a soil improvement fast exchange layer and a microorganism attaching layer. The nutrition core layer contains nitrogen, phosphorus, potassium and medium trace elements, and meets the basic nutrient requirements of crops; the controlled release film layer is self-assembled layer by layer by adopting alginate / chitosan, a humic acid-ferrous complex and a breakable cross-linking point are inserted into the film, and starch is sprayed on the outer layer, so that an ionic strength / alkalinity dual-response controlled release system is formed; the soil improvement quick exchange layer contains microcrystalline gypsum and ferrous sulfate; the microbial epiphytic layer fixes salt-tolerant phosphate solubilizing bacteria, potassium bacteria and exopolysaccharide-producing bacillus by using a charcoal-zeolite carrier, and the bacteria are distributed on the surfaces of the particles in a dotted manner. The fertilizer realizes organic combination of soil improvement, fertilizer supply and microbial regulation and control, can significantly reduce the soil salinity and alkalinity in a saline-alkali soil environment, and improves the fertilizer utilization rate and the crop growth performance.

The application relates to a method for one-step synthesis of strong magnetic hydrophobic Fe3O4 nanoparticles at low temperature and the Fe3O4 nanoparticles and application, and belongs to the technical field of nano material preparation. The method comprises the following steps: adding a ferrous sulfate solution into a mixed solution of sodium hydroxide and sodium nitrate, heating and stirring to react, adding oleic acid in the reaction process, and obtaining black Fe3O4 crystals after the reaction is completed. The saturation magnetization of the obtained strong magnetic hydrophobic Fe3O4 nanoparticles can reach 85.69 emu / g at most, and the water contact angle can reach 148.95 DEG. The one-step synthesis reaction only needs to use oleic acid as a regulator, avoids an extreme high-temperature and high-pressure environment, does not need to use a toxic chemical solvent, the condition is mild, the process is simple, the operation condition is easy to control, and the method has a wide application prospect.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The invention relates to the technical field of agriculture, in particular to an iron-rich yield-increasing foliar fertilizer for rice as well as a preparation method and an application method of the iron-rich yield-increasing foliar fertilizer. According to the specific technical scheme, the iron-rich yield-increasing leaf fertilizer for the rice is prepared from, by mass, 15%-25% of porous chitosan, 20%-30% of L-malic acid and 45%-55% of ferrous sulfate. The technical problem that in the prior art, the cadmium content of brown rice cannot be reduced while the iron content cannot be increased through a leaf fertilizer is solved.

The invention discloses high-durability quick-hardening concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials: aluminoferrite cement, vitreous calcium aluminate clinker, a coagulant nucleation agent, a nano hybrid siliceous material, a calcium-magnesium composite expanding agent, a self-healing agent, a hydration heat regulating agent, a water reducing agent, an early strength agent, a defoaming agent, a thickening agent, a retarder, an air entraining agent and aggregate. The coagulating nucleating agent is prepared from semi-hydrated gypsum, ferrous sulfate and aluminum potassium sulfate; the nano hybrid siliceous material is prepared by reacting acidic silica sol with sodium methyl silicate at 40-60 DEG C for 1-3 hours. According to the high-durability quick-hardening concrete and the preparation method thereof, the iron aluminate cement, the vitreous calcium aluminate clinker, the coagulant nucleation agent, the nano hybrid siliceous material, the calcium-magnesium composite expanding agent, the self-healing agent and the hydration heat regulating agent are utilized to form a brand-new high-durability and high-adaptability quick-hardening system. The mechanical property, the volume stability and the durability are comprehensively superior to those of the traditional quick-hardening concrete.

The invention relates to the field of industrial waste gas treatment, and discloses a technology for removing NOx and SOs in industrial flue gas through an ultrasonic atomization wet method. The technology comprises the steps that S1, the industrial flue gas is cooled and dedusted; s2, performing oxidation washing on NO by using a first washing solution and a second washing solution respectively; s3, absorbing NOx and SOs generated by oxidation of the industrial flue gas by using an absorption liquid subjected to ultrasonic atomization; s4, carrying out demisting treatment on the industrial flue gas; a first washing solution in the step S2 is a 0.5-1.5 wt% potassium persulfate aqueous solution, and a second washing solution is composed of 1-2wt% of ferrous sulfate, 0.5-1wt% of EDTA and the balance of water; the absorption liquid in the step S3 is prepared from basic hydroxide, carbonate, an interface modifier and water. According to the ultrasonic atomization wet process, the solid precipitation amount of the absorption liquid is small, the NOx and SOabsorptivity is high, and equipment cannot be corroded after long-term use.

This application relates to the field of chemical production and discloses a metal salt catalyst for desulfurization and denitrification, its preparation method, and its application. The catalyst comprises an active metal component of 30%-35%, a support of 60%-65%, and an additive of 5%-10%. The active metal component is specifically ferrous sulfate. The activity of the ferrous salt at medium and low temperatures, combined with the adjustment of the catalyst surface acidity by alkali metal sodium and rare earth element cerium, broadens the active temperature range. The support is specifically alumina. The additives consist of 3%-6% alkali metal sodium and 2%-4% rare earth element cerium by mass. Simultaneously, alkali metal sodium and rare earth element cerium can reduce impurity adsorption and enhance resistance to poisoning. This invention, through the rational selection of the active metal component, support, and additives, broadens the active temperature range of the catalyst, enabling it to adapt to flue gas temperature changes under different operating conditions, thus providing a wider range of applications for desulfurization and denitrification in industrial production.

The application provides a method for treating and recycling iron-containing waste sulfuric acid in titanium dioxide production, which is based on screening of a strain capable of treating iron-containing waste water in a low pH environment, and establishes a method for treating iron-containing waste sulfuric acid, which can effectively realize resource recycling. The waste water treatment bacteria used are Bacillus QD-QJ-062 strain, and the preservation number is CGMCC No.33725. The QD-QJ-062 strain of Bacillus screened by the application can effectively treat the iron-containing waste water in a low pH environment, promote the generation of ferrous oxalate precipitation, and generate ferrous oxalate by-products. The generated ferrous oxalate can be converted into ferrous sulfate by sulfuric acid, and oxalic acid can be recycled, thereby reducing the operation cost. The sulfuric acid solution after iron removal can be neutralized by limestone to generate high-purity gypsum, thereby realizing resource recycling and treatment.

The invention relates to the technical field of new energy, in particular to a metal-water battery system capable of storing energy and asynchronously producing hydrogen and oxygen, the metal-water battery system comprises a bifunctional catalyst, an iron deposition / dissolution electrode and an acidic electrolyte, and the metal-water battery system is prepared by the following specific steps: S1, stainless steel such as 304 or 316 is subjected to molten salt electrolysis modification to prepare the bifunctional catalyst, and the bifunctional catalyst has OER and HER catalytic activity; s2, taking the modified stainless steel catalyst as a first anode, taking inert electrodes such as a copper sheet or a titanium sheet as a first cathode, and forming a first electrolysis system with an acidic ferrous sulfate solution; and S3, electrolysis is conducted through the first electrolysis system, oxygen evolution reaction is conducted on the first anode, and metal iron is deposited on the first cathode. According to the metal-water battery system considering energy storage and asynchronous production of hydrogen and oxygen, time-space separation of deposition / dissolution of iron and hydrogen-oxygen precipitation is regulated and controlled through the bifunctional catalyst, and safe energy storage and step-by-step production of hydrogen energy / oxygen are achieved; the method is suitable for renewable energy storage, hydrogen energy preparation and distributed energy supply scenes.

The invention discloses a filler for repairing chlorinated hydrocarbon pollution and a method for repairing chlorinated hydrocarbon polluted underground water by using the filler. The filler is prepared from the following components in percentage by mass: 65-85% of coarse sand, 1-10% of magnetite, 1-5% of groundwater polluted by chlorinated hydrocarbon, 1-5% of wheat bran, 1-5% of coarse gypsum, 1-5% of ferrous sulfate and 1-5% of limestone. The raw materials of the filler are industrial finished products, are low in price and are suitable for actual site repair. The method for repairing chlorohydrocarbon polluted underground water through biogeochemical conversion by using the filler does not need high temperature and high pressure, and the reaction condition is mild. The used filler and emulsified vegetable oil have the advantages of high safety and environmental friendliness, and do not cause secondary pollution to the underground environment. The generation and accumulation of incomplete dechlorination intermediate products can be obviously reduced, so that the chlorinated hydrocarbon can be completely dechlorinated.

The utility model discloses a wastewater treatment device for triazinone production, which belongs to the technical field of triazinone production and comprises a premixing box, a ferrous sulfate inlet, a wastewater inlet and an acid inlet are arranged at the top of the premixing box, the premixing box is connected with a treatment box, a first spraying component is arranged on the upper portion of the inner wall of the treatment box, and two rotating rods are arranged in the treatment box side by side. A driving piece for driving the rotating rods to rotate is arranged on the two rotating rods, a plurality of conical rods are arranged on the rotating rods, and a liquid outlet is formed in the bottom end of the treatment box; the treatment box is connected with a gas treatment box through a gas outlet pipeline, a gas outlet is formed in the gas treatment box, a second spraying component is arranged at the top end of the inner wall of the gas treatment box, and a liquid outlet is formed in the bottom end of the gas treatment box. A small amount of bubbles generated in the treatment box are punctured through rotation of the conical rod, the bubbles are prevented from being gathered into foam to overflow and corrode the device, volatilized hydrogen chloride is guided into the gas treatment box to absorb hydrogen chloride gas, and environment pollution is avoided.

Natural turmeric and hibiscus inks were developed for use on fabrics and writing surfaces. Ethanolic extracts of turmeric and hibiscus were obtained and formulated with environmentally friendly mordants such as ferrous sulfate, ascorbic acid, and apple cider vinegar, and thickeners such as linseed oil and aloe vera. These treatments were tested on fabric, filter paper, and notebook paper. Color and color loss were evaluated using the Paint program when exposed to sunlight and washing (in the case of fabric), comparing the RGB and Hex pixel values ​​obtained before and after sun exposure and washing. The degree of similarity was assessed using a digital Color Matcher Tool with the Hex and RGB data. Once the best treatment with the aforementioned mordants was determined, the ink formulation was developed using thickeners such as gelatin, alginate, cornstarch, and honey.It has a pleasing color and good consistency for use on fabric and paper. It's possible to create inks for writing and dyeing fabrics with readily available ingredients, thus contributing to environmental protection.

The utility model provides an organic wastewater advanced treatment system based on Fenton oxidation reaction, and relates to the field of wastewater treatment. The organic wastewater advanced treatment system based on the Fenton oxidation reaction comprises a Fenton oxidation module, an advanced oxidation module, a neutralization and flocculation module and a precipitation module which are connected in sequence, the Fenton oxidation module is communicated with the deep oxidation module through a pipeline, the Fenton oxidation module is provided with a water inlet pipe, a first adding point and a second adding point, the first adding point is used for adding ferrous sulfate, the second adding point is used for adding hydrogen peroxide, the deep oxidation module is provided with a third adding point, and the third adding point is used for adding chlorine dioxide; the deep oxidation module, the neutralization and flocculation module and the precipitation module are co-constructed, and the common wall slots of every two adjacent modules are communicated. The system can effectively remove non-biodegradable substances in wastewater in industries such as printing and dyeing, pulping and papermaking and the like, and reduces the generation of chemical sludge at the same time.

This invention relates to the field of electrocatalyst technology, and discloses a carbon fiber-supported Fe3O4 composite material, its preparation method and application, and a method for electro-Fenton oxidation degradation of organic pollutants. The method includes: (1) pretreating carbon fibers with hydrochloric acid to obtain pretreated carbon fibers; (2) reacting a mixed solution containing ferrous sulfate and nitrate with the pretreated carbon fibers and ammonia, allowing it to stand to obtain mixture I; and (3) heat-treating mixture I to obtain the carbon fiber-supported Fe3O4 composite material. This preparation method is simple, requires no particularly expensive equipment, can be synthesized at relatively low reaction temperatures, is easy to operate, and the resulting composite material exhibits excellent catalytic performance and stability.

The application provides a method for preparing high-iron-phosphorus-ratio iron phosphate in batches at low cost, and the steps are as follows: S1. reacting a ferrous sulfate solution, a phosphorus salt solution and hydrogen peroxide to obtain amorphous iron phosphate; S2. filtering and washing the amorphous iron phosphate; S3. adding pure water to the filtered cake of the washed amorphous iron phosphate, stirring, heating, adding a crystal transformation promoter after keeping warm, and reacting to obtain iron phosphate dihydrate slurry, and reserving part of the iron phosphate dihydrate slurry; S4. squeezing, drying and calcining the remaining iron phosphate dihydrate slurry; S5. repeating steps S1-S4 in batches; if it is the first batch reaction, the crystal transformation promoter is phosphoric acid, and if it is not the first batch reaction, the crystal transformation promoter is a mixture of hydrogen peroxide and crystal nuclei prepared from the iron phosphate dihydrate slurry reserved in the last batch. The method can greatly save the preparation cost of iron phosphate, and the iron-phosphorus ratio of the prepared iron phosphate is above 0.99.

The application discloses a capillary open-tube chromatographic column preparation method based on a defect engineering metal organic framework-molecular imprinting composite nanomaterial and application, and particularly relates to the field of chemical synthesis and analysis technology. A GLYMO-IDA-silane solution is used to flush a pretreated capillary, so that a carboxyl-modified capillary is obtained. Then, an N,N-dimethylformamide solution containing zirconyl chloride octahydrate, terephthalic acid, L-proline and hydrochloric acid is injected into the cysteine-modified capillary, and under a heating condition, a metal organic framework UiO-66-L-Pro is in-situ grown on the inner wall of the capillary. D-tryptophan and norepinephrine are dissolved in a neutral buffer solution, and after magnetic stirring for 30 min, ferrous sulfate is added and rapidly injected into the UiO-66-L-Pro-modified capillary, and then both ends are sealed, and reaction is carried out at room temperature for 24 h. An acetic acid / SDS solution mixture is used to flush the capillary for 1.5 h to elute the template molecules, and then nitrogen is used to blow dry, so that an MIP@UiO-66-L-Pro@capillary is prepared.

The invention discloses a method for testing the content of trivalent metal elements in a metal oxide, and belongs to the technical field of chemical analysis. The method comprises the following steps: firstly, reducing trivalent metal elements in a sample into divalent metal elements by using a reducing agent ammonium ferrous sulfate in a strong acid environment, wherein unreacted ammonium ferrous sulfate remains in a system; then, potassium permanganate is adopted for titration of unreacted ammonium ferrous sulfate, the end point is based on the fact that the solution becomes light pink and keeps color fastness for 15 seconds, and meanwhile a blank solution is set to eliminate system background interference; by comparing the difference between the blank titration volume and the sample titration volume and combining the titration concentration and the sample mass, the content of the trivalent metal elements in the sample can be accurately calculated. The method has the advantages of simplicity and convenience in operation, strong anti-interference capability, high detection precision and wide application range, is suitable for various metal oxide material systems, and is particularly suitable for quality control and performance analysis of new energy materials and catalysts.

The invention discloses a metal oxide composite sodium ferric sulfate positive electrode material as well as a preparation method and application thereof, and belongs to the technical field of sodium ion battery positive electrode materials. The metal oxide composite sodium ferric sulfate positive electrode material comprises the following raw materials in parts by mass: 1-20 parts of sodium sulfate, 2-40 parts of ferrous sulfate, 0.05-1 part of an antioxidant, 0.05-1 part of a carbon source and 0.01-2 parts of metal oxide, the metal oxide is at least one of ferrous oxide, ferric oxide, ferroferric oxide, manganese oxide, manganese dioxide, cobalt oxide, cobaltosic oxide, cobaltic oxide, vanadium monoxide, vanadium dioxide, vanadium trioxide, vanadium pentoxide, nickel oxide and copper oxide. The invention also discloses a preparation method and application of the metal oxide composite sodium ferric sulfate positive electrode material. The method provided by the invention can solve the problems of low conductivity and specific capacity of the existing sodium ferric sulfate positive electrode material, and has the advantages of low cost, strong process adaptability and wide application prospect.

The invention relates to a method for improving the survival rate of acclimatization and transplantation of camellia tissue culture seedlings. In the acclimatization process, the tissue culture seedlings are disinfected by a ferrous sulfate disinfectant and then are transplanted. The method successfully solves the problem of huge economic loss caused by discarding polluted camellia tissue culture seedlings which are difficult to breed or extremely precious, can realize normal growth of the tissue culture seedlings under the condition of bacterial colony pollution, and greatly improves the survival rate of the tissue culture seedlings after acclimatization and transplantation.

This application relates to the field of road engineering materials technology, and discloses a method for preparing modified phosphogypsum base material for road engineering, comprising the following steps: mixing aged phosphogypsum with ferrous sulfate heptahydrate, sodium fluorosilicate, and manganese sulfate monohydrate, utilizing the inherent moisture of the phosphogypsum to dissolve the salts and form an acidic slurry; adding heat-curing dry powder and high-speed shearing, utilizing the heat of hydration to raise the temperature to 65℃-85℃ to create a high-temperature strong alkaline environment, initiating manganese catalytic oxidation and slag thermal etching; subsequently, high-pressure injection of a rapid cooling conditioning liquid, utilizing the latent heat of vaporization to rapidly cool to below 45℃ to complete rapid cooling quenching and slow setting locking; unloading and aging to obtain the modified phosphogypsum base material. This invention, through the release of chemical energy by quicklime hydration to construct a high-temperature strong alkaline reaction field, achieves deep mineralization of impurities and reconstruction of the cementitious material network, significantly improving the water stability and mechanical properties of the base material.

This invention relates to the field of lithium compound production wastewater treatment technology in the lithium battery new energy industry, specifically a method for the resource recovery of lithium compound production wastewater in the lithium battery new energy field. The method includes the following steps: S1: pretreatment; S2: EDTA oxidation removal; S3: removal of calcium and other high-valence metal ions; S4: UV / O3 treatment; S5: lithium extraction from the wastewater. After treatment by this method for the resource recovery of lithium compound production wastewater in the lithium battery new energy field, the lithium extraction wastewater achieves complete degradation of EDTA in the saturated sodium sulfate solution, reducing the COD value by more than 80%. Due to the complete degradation of EDTA, subsequent lithium precipitation treatment can achieve lithium resource recovery. Furthermore, the iron sludge formed by the ferrous sulfate catalyst added in the EDTA oxidation step after its first use can dissolve in EDTA. Therefore, the catalyst in the UV / Fenton reaction can be recycled. This method avoids lithium loss due to iron sludge entrainment.

The application discloses a kind of genetic engineering escherichia coli plasmid expression culture medium and fermentation process, including basic medium and feed medium;The basic medium includes glycerol, yeast hydrolysate, yeast peptone, L-glutamic acid, L-valine, L-isoleucine, arginine, tyrosine, lysine, proline, glycine, ammonium sulfate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, citric acid, magnesium sulfate, ferrous sulfate, zinc sulfate, calcium chloride, manganese chloride, cobalt chloride, copper chloride, sodium ethylenediaminetetraacetate;Feed medium includes glycerol, citric acid, magnesium sulfate, ferrous sulfate, zinc sulfate, calcium chloride, manganese chloride, cobalt chloride, copper chloride, sodium ethylenediaminetetraacetate.The application inhibits the accumulation of harmful metabolites, and creates the optimal intracellular environment for stable replication of plasmid.In industrial fermentation scale, the amount of plasmid harvested per liter of fermentation broth is more than 1 gram, and the supercoiling ratio of plasmid DNA is stably maintained at more than 90%, with minimal batch-to-batch variation.

The present application relates to a kind of purification method of nitric oxide gas, comprising the following steps: crude nitric oxide gas is imported into extraction column, and the extraction phase obtained after extraction is imported into resolution column for temperature resolution;Nitric oxide gas resolved is imported into ethanol absorption tower after alkali washing tower and condenser;Again imported into the adsorption tower filled with 13X molecular sieve;After adsorption, the gas is collected into product collection bottle, and the purity of more than 99.99% nitric oxide product is obtained.The present application uses ferrous sulfate solution as extractant, extracts refined nitric oxide, realizes the efficient extraction of nitric oxide by the coordination reaction of ferrous ion and nitric oxide in the purification process, then uses ethanol as absorbent, utilizes the significant difference in solubility of nitric oxide and nitrous oxide in ethanol, can selectively absorb the nitrous oxide impurity difficult to remove, finally uses 13X molecular sieve to further remove nitrous oxide, which is beneficial to reduce disproportionation reaction and improve product purity.

The application belongs to the technical field of material preparation, and relates to a bimodal functional imaging nanomaterial and a preparation method and application thereof. 1‑x Fe x Se2, wherein 0 < x < 1. The preparation method of the bimodal functional imaging nanomaterial comprises the following steps: stirring ferrous sulfate and cysteine in a solvent until uniform, then fully stirring bismuth salt, then adding sodium selenite to perform a heating reaction to obtain a bismuth iron selenium nanocomposite. The bismuth iron selenium nanocomposite provided by the application is uniform in size, regular in morphology, has good water phase dispersibility, and has the performance of simultaneously enhancing MRI imaging and CT imaging.

The invention provides a preparation method of nano iron phosphate, and belongs to the technical field of battery positive electrode materials. The preparation method of the nano iron phosphate comprises the following steps: mixing N-dodecanoyl-L-sodium alanine with ferrous sulfate, adding monoammonium phosphate and hydrogen peroxide, and carrying out oxidation and precipitation reaction to obtain a basic iron phosphate yellow material; carrying out gradient aging on the basic iron phosphate yellow material to obtain an iron phosphate dihydrate white material; and drying and calcining to obtain the nano iron phosphate. According to the method, N-dodecanoyl-L-sodium alanine is added into the ferrous sulfate solution in the reaction stage to induce formation of a staggered nano-particle primary structure, and agglomeration of iron phosphate particles in the reaction stage is inhibited, so that compact and ordered gaps can be formed in the prepared nano iron phosphate. The nano iron phosphate obtained by the method is used as a raw material to synthesize lithium iron phosphate, so that the lithium iron phosphate with high compaction density and excellent electrical properties can be obtained at a relatively low calcination temperature, and the method can be applied to preparation of electrodes.

This invention discloses a bio-organic fertilizer suitable for improving alkaline soil, its preparation method, and its application in citrus orchards, belonging to the field of agricultural soil improvement technology. The organic fertilizer is made from 40.00%-50.00% citrus peel residue, 20.00%-30.00% a mixture of sawdust and straw powder, 15.00%-20.00% a mixture of rapeseed meal and soybean meal, 20.00%-30.00% a mixture of livestock and poultry manure, and 0.25%-0.50% ferrous sulfate. Its preparation includes raw material pretreatment, citrus biogas slurry preparation, mixed fermentation, and finished product preparation. During soil improvement, the dosage is determined according to the soil pH value, and it is applied twice using trenching or hole application methods. This invention realizes the resource utilization of agricultural waste, can efficiently improve alkaline soil, solve the problem of iron deficiency and chlorosis in citrus, and is environmentally friendly and easy to operate, suitable for soil improvement in various types of citrus orchards, especially mountainous citrus orchards.

The invention provides a preparation method of lonicera caerulea high-anthocyanin juice helpful for improving human immunity, and relates to the technical field of juice preparation. The preparation method of the lonicera caerulea high-anthocyanin juice helpful for improving the immunity of the human body comprises the following steps: S1, selecting high-quality lonicera caerulea; s2, crushing the pulp in the step S1; s3, mixing the upper-layer fruit juice obtained in the step S2 with fruit juice to obtain primary fruit juice; s4, mixing the strawberry juice with the mango juice to obtain primary compound juice; s5, adding zinc sulfate and ferrous sulfate into the primary compound fruit juice, and stirring; and S6, obtaining the lonicera caerulea juice. The lonicera caerulea is crushed, fruit juice is extracted from fruit residues, the extracted fruit juice and filtered fruit juice are mixed together, waste of the fruit juice is avoided, strawberry juice, mango juice, zinc sulfate and ferrous sulfate are added into the fruit juice, the nutritional ingredients of the lonicera caerulea fruit juice are increased, and the nutrition of the fruit juice is more balanced.

The invention relates to the technical field of wastewater treatment, and discloses preparation and application of a MnFeOx / CSA three-dimensional particle electrode for antibiotic wastewater treatment.The preparation method comprises the steps that a metal organic framework (Mn-MOF) and sodium alginate are mixed according to the mass ratio of 1.0: 3.2 to prepare homogeneous gel; dropwise adding the gel into a ferrous sulfate solution with the concentration of 0.10 to 0.40 g.L <-1 >, and carrying out cross-linking to obtain hydrogel microspheres; and carrying out vacuum freeze drying and carbonization treatment at 750-850 DEG C in a nitrogen atmosphere to obtain the MnFeOx / CSA three-dimensional particle electrode. The electrode is used as a particle electrode to construct a three-dimensional electrode system, and the antibiotic-containing wastewater is subjected to electrochemical degradation in the presence of an external electric field and persulfate. According to the invention, through an in-situ loading strategy, catalyst agglomeration is effectively inhibited; and the constructed three-dimensional electrode system obviously improves the mass transfer efficiency and the degradation capability on antibiotics.

The invention relates to the technical field of phosphorus chemical industry, and particularly discloses an iron phosphate continuous reaction process. Comprising the following steps: step 1, preparing a solution: adding ammonia water into phosphoric acid and mixing with the phosphoric acid to obtain an ammonium phosphate solution; mixing the ammonium phosphate solution and the ferrous sulfate solution to prepare a premixed solution; the oxidation reaction is divided into three-stage reaction, hydrogen peroxide and ammonia water are added in the first-stage reaction, hydrogen peroxide and ammonia water are added in the second-stage reaction, and only ammonia water is added in the third-stage reaction; and 4, drying and packaging: carrying out centrifugal separation on the aged reaction crystallization slurry, and drying and calcining to obtain an iron phosphate product. The technical problems that after hydrogen peroxide is added into an iron source and a phosphorus source in a mixed mode in an existing continuous production technology of iron phosphate, crystallization is prone to being separated out due to reaction heat release, and then pipelines, valves, plate exchange and the like of a continuous production system are prone to scaling and blocking are solved.

The invention relates to the technical field of fertilizer preparation, in particular to a preparation method and application of a trace element synergistic nitrogen-phosphorus-potassium fertilizer, the raw materials comprise the following components: a nitrogen-phosphorus-potassium compound fertilizer, a trace element mixture, mineral source humic acid, a synergistic aid, a chelating agent and water; the fertilizer comprises the following components in parts by weight: 55 parts of nitrogen-phosphorus-potassium compound fertilizer; the proportion of the trace element mixture is 12 parts; the proportion of the mineral source humic acid is 15 parts; the synergistic additive is potassium fulvic acid, and the proportion of the potassium fulvic acid is 8 parts; the proportion of the chelating agent is 5 parts; the water is deionized water, and the proportion of the water is 5 parts; the trace element mixture comprises 4 parts of zinc sulfate, 3 parts of borax, 2 parts of ferrous sulfate, 0.5 part of ammonium molybdate, 1 part of manganese sulfate, 0.5 part of copper sulfate and 1 part of potassium chloride; the invention aims to solve the problems that the existing fertilizer does not contain or contains trace elements which are difficult to absorb by crops and needs to be additionally and independently applied, so that the operation is tedious and the effect is poor.