56 results about "Potassium hydrogen persulfate" patented technology

The invention relates to an advanced oxidation printing and dyeing wastewater treatment process, and belongs to the technical field of sewage treatment. The method comprises the following steps: adding an aluminum oxide catalyst into to-be-treated printing and dyeing wastewater in a reactor, and stirring; adding an auxiliary agent, and mixing and stirring; adding an oxidizing agent potassium monopersulfate into the obtained mixed solution and stirring; under the irradiation of an ultraviolet light source, continuously introducing ozone prepared by an ozone generator into the reactor for stirring reaction. Pollutants such as refractory dyes and organic auxiliaries in the printing and dyeing wastewater are efficiently removed under mild conditions, the COD removal rate of effluent reaches 90% or above, the chroma removal rate reaches 90% or above, and the quality of the effluent meets the requirements of subsequent treatment or up-to-standard discharge.

The invention discloses a high-load monatomic catalyst as well as a preparation method and application thereof. The monatomic catalyst is an iron monatomic catalyst, and is characterized in that the mass loading proportion of Fe can be regulated and controlled within the range of 5.16-41.31 wt%, which exceeds all Fe monatomic catalysts reported at present, and overcomes the bottleneck of few metal active sites of the monatomic catalyst. The method has the advantages that a cascade anchoring strategy is adopted, and Fe < 3 + > is assembled into a macromolecular organic framework through the multifunctional effect of a chelating agent. And calcining the obtained precursor in N2 atmosphere at 550 DEG C for 4 hours to obtain the high-quality loaded iron monatomic catalyst. The preparation method is simple, low-cost and environment-friendly. The prepared monatomic catalyst with the high iron loading capacity has more active sites, the activation performance of potassium hydrogen persulfate is remarkably improved, the degradation kinetics of sulfamethoxazole (SMX) is improved, the SMX removal rate of 90% or above can still be kept after the catalyst is repeatedly used for five times, and it is indicated that the catalyst has good activity and durability.

The invention discloses a treating agent for organic pollutants in sewage as well as a preparation method and application of the treating agent in the technical field of sewage treatment, and adopts a phosphorus / B introduction dual strategy to realize accurate control of doping positions and proportions of P and B elements on a molecular level; according to the present invention, the synergistic enhancement effect of the catalyst on the aspects of active sites, charge transfer and free radical generation ability is improved, the precursor structure is induced to generate the porous structure during the pyrolysis process, and the specific surface area of the catalyst and the diffusion mass transfer of the reactant can be easily enhanced, and the prepared treatment agent can be used in the PMS system advanced oxidation technology industrial sewage treatment method, according to the treatment method, potassium hydrogen persulfate and a specific treatment agent are synergistically used, the generation efficiency of sulfate free radicals and hydroxyl free radicals in a PMS activation system is remarkably improved, efficient recovery of the heterogeneous catalyst is achieved in a multivalent metal ion bridging mode, the loss rate of the catalyst is reduced, and the utilization rate of the catalyst is increased. And secondary pollution of the catalyst to the effluent is also avoided.

The invention relates to the technical field of production devices, and discloses a potassium monopersulfate-based composite disinfectant production device, which comprises a support frame, the inner wall of the support frame is fixedly connected with a mixing barrel, the inner wall of the mixing barrel is rotatably connected with a reciprocating screw rod, and the circumferential surface of the reciprocating screw rod is fixedly connected with a triangular plate. A rotating rod is rotatably connected to the inner wall of the triangular plate, a stirring plate is fixedly connected to the circumferential surface of the rotating rod, a rubber wheel is fixedly connected to the circumferential surface of the stirring plate, an ultraviolet lamp is arranged at the bottom of the triangular plate, a raw material frame is fixedly connected to the inner wall of the mixing barrel, and a fan-shaped plate is slidably connected to the inner wall of the raw material frame. In the mixing process, quantitative intermittent feeding can be achieved, the amount of medicine powder fed every time is accurately controlled, the requirement of a production formula is met, and local concentration unbalance caused by excessive feeding at a time is avoided.

This invention discloses a high-density composite for long-lasting water bottom improvement and disinfection, and its preparation method, relating to the field of aquaculture technology. The high-density composite is prepared from the following raw materials: a premixed additive, potassium persulfate, sodium chloride, gelatinized starch, bentonite powder, attapulgite, cement, calcium carbonate, titanate coupling agent, purified water, and molasses. This invention also discloses a method for preparing the high-density composite. The high-density composite for long-lasting water bottom improvement and disinfection of this invention has advantages such as long duration of slow-release bottom improvement, good stability, simple preparation method, low production cost, and ease of large-scale production. It fills the gap in slow-release bottom improvement products and solves the problems of current slow-release bottom improvement technologies, such as difficulty in controlling the slow-release rate, complex preparation methods, high production costs, and difficulty in large-scale production.

This invention discloses an interference-resistant method for purifying DOM-rich, high-arsenic groundwater. The method involves adding an Fe / Co bimetallic organic framework (BOF) material and potassium persulfate solution to a high-arsenic groundwater sample rich in dissolved organic matter, maintaining stirring at room temperature, and achieving efficient simultaneous oxidation-adsorption removal of As(III). This method is unaffected by dissolved organic contaminants and common anions and cations. The method described herein, using the Fe / Co BOM coupled with peroxymonosulfate, can effectively purify complex, high-arsenic groundwater.

The application belongs to the technical field of disinfection, and discloses a composite disinfectant and a preparation method thereof. The disinfectant is composed of potassium hydrogen persulfate, urea peroxide, sodium percarbonate, sodium hexametaphosphate, sodium citrate, ethylenediaminetetraacetic acid disodium, sulfamic acid, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine, nano manganese dioxide, nano silicon dioxide, nano zinc oxide, sodium carboxymethyl cellulose, polyethylene glycol 6000, amaranth red, sodium chloride and a residual amount of anhydrous sodium sulfate, and is prepared through a feeding, mixing and granulating process. The application is suitable for disinfection in multiple scenes, has high safety and a simple preparation process, and is suitable for large-scale industrial production.

The invention relates to a cigarette core material for a self-heating cigarette and application of the cigarette core material. The cigarette core material comprises a mixture of a self-heating material and a tobacco base material. The self-heating material comprises an oxidizing agent, a reducing agent and a thermal reaction transfer agent; the oxidizing agent, the reducing agent and the thermal reaction transfer agent are physically separated from one another through a barrier material; the oxidizing agent comprises potassium hydrogen persulfate and potassium permanganate; the reducing agent comprises iron powder and / or aluminum powder; the thermal reaction transfer agent is one or a combination of at least two of calcium chloride, activated carbon, magnesium sulfate or citric acid. According to the cigarette core material for heating the cigarette, a battery and an electronic circuit are completely abandoned, through an innovative physical-chemical spontaneous heating structure and a starting mechanism, a controllable chain type exothermic reaction of the spontaneous heating material in the cigarette core can be triggered only through transient triggering of a conventional fire source (such as a lighter), and therefore the tobacco material is evenly baked to generate smoke.

The utility model relates to the technical field of powder packaging, in particular to a powder dredging structure of potassium hydrogen persulfate compound powder filling equipment, which comprises filling pipes arranged at the lower ends of filling barrels and supplementing barrels, and the filling pipes are fixedly connected with the respective filling barrels or supplementing barrels through connecting parts; a scraping plate is slidably connected to the inner wall of the filling pipe, the top of the scraping plate is arranged in the connecting part, and a driving mechanism is further arranged in the connecting part and used for driving the scraping plate to rotate along the inner wall of the filling pipe. And a scraping plate is arranged in the filling pipe and is in sliding connection with the inner wall of the filling pipe. After filling is completed every time, the scraping plate rotates by a circle along the inner wall of the filling pipe, so that the potassium hydrogen sulfate compound powder remaining on the inner wall of the filling pipe can be effectively scraped off, and the potassium hydrogen sulfate compound powder falls into a potassium hydrogen sulfate compound powder packaging box. Not only is waste avoided, but also the problem of residual potassium hydrogen sulfate compound powder in the filling pipe is effectively solved, and meanwhile, the residual potassium hydrogen sulfate compound powder is prevented from drifting everywhere.

The invention relates to a preparation method of tetramethylpyrazine, which is characterized in that 3-hydroxy-2-butanone and ammonium acetate are used as raw materials, a potassium hydrogen persulfate compound (Oxone) is used as an oxidizing agent, and 2, 3, 5, 6-tetramethylpyrazine is prepared through reaction. The preparation method has the beneficial effects that the reaction is rapid, the condition is mild, an organic solvent is not needed, and industrial popularization is easy; the color of a reaction system solution in the reaction process is light, and the reaction solution can be used mechanically, so that the green, environment-friendly and safe production and purification processes of the product are realized; the prepared product can be directly obtained in a filtering mode, and the product is high in purity, good in appearance, high in yield and suitable for one-pot production.

The invention belongs to the technical field of environmental protection, and provides a preparation method and application of phosphorus-doped two-dimensional transition metal carbide porous flexible aerogel. The method comprises the following steps: chemically etching a two-dimensional transition metal carbide precursor through a lithium fluoride-hydrochloric acid system, and carrying out ultrasonic stripping and centrifugal purification to obtain a single-layer nano material suspension; then, triphenylphosphine is adopted for phosphorus doping modification, and the electronic structure is optimized through high-temperature annealing treatment; the preparation method comprises the following steps: impregnating modified melamine sponge with polyvinyl alcohol (PVA) to construct a three-dimensional porous carrier, uniformly loading a phosphorus-doped two-dimensional carbide nano-material on the surface of the carrier, and finally preparing the flexible aerogel material with a hierarchical porous structure through a freeze-drying process. According to the scheme, by doping the phosphorus element, the conductivity of the two-dimensional transition metal carbide is effectively improved, multi-layer accumulation caused by interlayer Van der Waals interaction is reduced, and excellent catalytic activity is shown for removal of antibiotics in industrial wastewater; and compared with traditional persulfate (such as potassium hydrogen persulfate), ciprofloxacin (CIP) in industrial wastewater can be efficiently degraded, and a good treatment effect is achieved.

The utility model relates to potassium hydrogen sulfate composite powder processing technical field, concretely relates to a kind of potassium hydrogen sulfate composite powder premixing mechanism, including support seat, the potassium hydrogen sulfate composite powder premixing mechanism further includes: cradle is rotationally arranged on the support seat, mixing tank is rotationally arranged in the cradle, the drive part for driving mixing tank autorotation, several helical blades are fixed in the mixing tank inside circumferentially uniformly, and the mixing area is formed by surrounding between adjacent two helical blades.The utility model can autorotate mixing tank under the driving of drive part after raw material is filled and tightened can cover, and cradle is reciprocatingly deflected along mixing tank axial under the driving of reciprocating driving element, so that raw material flows, rolls mixing in mixing tank, greatly weaken the collision, vibration degree in mixing process of raw material, improve mixing effect.

The application discloses a preparation method and application of a cellulose-based material loaded cobalt-doped metal organic framework compound catalyst. The composite catalyst takes a cellulose-based material as a carrier, and is subjected to hydrothermal treatment together with an aqueous solution of ferric chloride hexahydrate and fumaric acid, so as to obtain a metal organic framework compound MIL-88A which is in-situ grown on the cellulose-based material, and then the MIL-88A is subjected to freeze drying. After the treatment, the obtained cellulose-based material loaded MIL-88A is added into a mixed aqueous solution of cobalt nitrate nonahydrate and urea, and is subjected to water bath treatment at 90 DEG C, and then the cellulose-based material loaded MIL-88A obtained after the treatment is subjected to freeze drying, so as to obtain the cellulose-based material loaded cobalt-doped MIL-88A catalyst. The prepared heterogeneous catalyst can efficiently degrade dyes by activating potassium monopersulfate. The catalyst is easy to recover, and can be used in an intermittent or continuous dye degradation process. In the continuous degradation of a dye rhodamine B, when the flow rate is 6 ml / h, the catalyst can still maintain high catalytic degradation activity for 72 h.

The invention relates to the technical field of chemical methods, in particular to preparation of a Cu and Ni doped modified MIL-88A material and application of the Cu and Ni doped modified MIL-88A material in activating potassium hydrogen persulfate to degrade PFBS. The preparation method comprises the following steps: performing ultrasonic dispersion and dissolution on fumaric acid, CuCl2. 2H2O, FeCl3. 6H2O and Ni (NO3.) 2.6 H2O, mixing, reacting at specific temperature and rotating speed, and washing and drying to obtain a product; the application comprises the following steps: preparing PMS and PFBS solutions, adding the modified material, and reacting under specific conditions. The problems that existing MIL-88A catalytic active sites are limited, and Fe < 3 + > / Fe < 2 + > valence state circulation conversion is slow are solved.

The invention discloses application of a cobalt-silicon molecular sieve catalyst to removal of aniline in industrial wastewater, and belongs to the technical field of environment-friendly water treatment. The application comprises the following steps: firstly, adjusting the pH value of the industrial wastewater to 3.0-10.0; adding a cobalt silicon molecular sieve catalyst and potassium hydrogen persulfate into the industrial wastewater, and reacting for 0.5-3 hours; the preparation method of the cobalt-silicon molecular sieve catalyst comprises the following steps: S1, adding cobalt nitrate, tetraethyl orthosilicate and benzyltripropylammonium hydroxide into water, and uniformly mixing to obtain a precursor solution; s2, performing hydrothermal synthesis reaction on the precursor solution, and filtering to obtain molecular sieve raw powder; and S3, roasting the molecular sieve raw powder to obtain the cobalt-silicon molecular sieve catalyst. By changing the structure-directing agent used in the preparation process of the molecular sieve catalyst, when the obtained cobalt-silicon molecular sieve catalyst is used for removing aniline in industrial wastewater, the aniline removal rate can reach 99% or above.

The invention provides a high-potential potassium hydrogen persulfate substrate modified sheet and a preparation method thereof, and relates to the field of substrate modified sheets. Comprising the following components in parts by weight: 10-30 parts of potassium hydrogen persulfate composite salt, 2-3 parts of potassium hydrogen sulfate, 2-5 parts of potassium sulfate, 1-3 parts of sodium chloride, 1-3 parts of polyethylene glycol 60001, 1-3 parts of polyvinylpyrrolidone, 1-3 parts of magnesium sulfate, 3-5 parts of lauryl sodium sulfate, 4-10 parts of sodium metaphosphate and 30-60 parts of sodium sulfate. The invention also provides a method for preparing the high-potential potassium hydrogen persulfate substrate modified sheet. According to the invention, slow dissolution of drugs in a water body is realized through an inclusion technology, active peroxy ions are continuously released, long-acting oxygenolysis of sediment organic matters is ensured, and the continuous demand of an aquaculture environment on sediment improvement is met.

The invention belongs to the technical field of sewage treatment, and particularly relates to a medical sewage treatment method for synergistically removing new pollutants and pathogenic microorganisms, which comprises the following steps: S1, pretreatment: putting an inorganic flocculant into medical sewage to promote the aggregation and precipitation of suspended particles and colloids in the medical sewage; s2, oxidation treatment: a composite agent is put into the pretreated medical sewage, a direct-current electric field is applied at the same time, the composite agent comprises potassium monopersulfate composite salt, sulfamic acid, sodium chloride, sodium bromide, a surfactant, a pH buffer agent, a composite corrosion inhibitor, an anti-blocking agent and anhydrous sodium sulfate, strong-oxidizing components are generated after the composite agent is dissolved, and the strong-oxidizing components are added into the pretreated medical sewage; organic matters are mineralized and decomposed, and pathogens are killed; s3, biochemical treatment: carrying out biochemical treatment on the medical sewage subjected to oxidation treatment to remove ammonia nitrogen and small molecular organic matters. According to the invention, various new pollutants can be effectively decomposed, pathogenic microorganisms are inactivated, and the treatment effect is improved.

The invention discloses a potassium hydrogen persulfate composite salt tablet composite processing device applied to aquaculture, and relates to the technical field of aquaculture. The primary pressing mold is arranged on the rack and is provided with a plurality of primary pressing mold holes for accommodating powder materials; a plurality of re-pressing die holes are formed in the re-pressing die, and the forming width of the re-pressing die holes is larger than that of the initial pressing die holes; the feeding and discharging mechanism is arranged on the rack and used for feeding powder materials into all the re-pressing die holes and the initial pressing die holes or discharging tablets obtained after re-pressing is completed. The adsorption mechanism is used for sucking the tablets subjected to primary compression molding out of the primary compression mold hole and transferring the tablets into the secondary compression mold hole; the downward pressing mechanism is arranged on the rack, located above the primary pressing mold and the secondary pressing mold and used for pressing materials in the primary pressing mold hole and the secondary pressing mold hole in sequence; the controller is electrically connected to the feeding and discharging mechanism, the adsorption mechanism and the downward pressing mechanism. According to the invention, the bottom changing effect of the aquaculture water area can be improved.

The application belongs to the technical field of resource utilization of medicinal residue, and particularly relates to a method for selectively extracting cellulose from medicinal residue by oxidation. The method for selectively extracting cellulose from medicinal residue by oxidation provided in the application can efficiently extract cellulose from medicinal residue waste in one step, and realize harmless disposal and resource utilization of medicinal residue waste. The application uses medicinal residue waste as raw material, does not need any pretreatment, removes non-cellulose plant components based on one-step oxidation of potassium peroxydisulfate, efficiently and selectively extracts cellulose, and the purity of the extracted cellulose is as high as 95%. In the application, potassium peroxydisulfate as a strong oxidant degrades the amorphous region of medicinal residue waste, avoiding the removal of non-cellulose plant components by pretreatment. The method provided in the application does not involve toxic or costly chemical reagents, is simple in steps, short in time consumption, low in energy consumption, small in wastewater production, low in COD value, and realizes the recycling of cellulose.

The utility model discloses a potassium hydrogen persulfate production concentration kettle with an efficient evaporation coil in the technical field of concentration kettles, which comprises a concentration kettle main body, a top cover is assembled at the top end of the concentration kettle main body, and a rotating hole is formed in the center of the top cover; a rotating shaft is assembled in the rotating hole, a stirring body is mounted at the lower end of the rotating shaft, and the stirring body is arranged in the concentration kettle; a mounting cavity is formed in the stirring body, and an evaporation coil pipe is assembled in the mounting cavity; a sealing plate is embedded in the front end of the mounting cavity, fixing clamping plates are mounted on the outer walls of the two sides of the sealing plate, fixing clamping grooves are formed in the positions, located at the two ends of the mounting cavity, of the side wall of the stirring body, the fixing clamping plates are mounted in the fixing clamping grooves, and the fixing clamping plates and the fixing clamping grooves are clamped through clamping structures; according to the potassium hydrogen persulfate production concentration kettle with the efficient evaporation coil, the evaporation coil is arranged in the stirring body, so that overflowing potassium hydrogen persulfate in the concentration kettle is produced, the overall working efficiency is improved, and the operation of the concentration kettle is facilitated.

The application provides a high-potential potassium hydrogen persulfate bottom modification sheet and a preparation method thereof, relates to the field of bottom modification sheets, and comprises the following components in parts by weight: 10-30 parts of potassium hydrogen persulfate composite salt, 2-3 parts of potassium bisulfate, 2-5 parts of potassium sulfate, 1-3 parts of sodium chloride, 1-3 parts of polyethylene glycol 6000, 1-3 parts of polyvinylpyrrolidone, 1-3 parts of magnesium sulfate, 3-5 parts of sodium dodecyl sulfate, 4-10 parts of sodium metaphosphate and 30-60 parts of sodium sulfate. The application also provides a method for preparing the high-potential potassium hydrogen persulfate bottom modification sheet. The application realizes slow dissolution of the drug in water through inclusion technology, continuously releases active peroxide ions, ensures long-acting oxidation and decomposition of the organic matter in the bottom mud, and meets the sustainability requirement of the water product breeding environment for the bottom improvement.

The invention relates to the technical field of heating equipment for a potassium hydrogen persulfate drying machine, in particular to a heating system for a potassium hydrogen persulfate drying machine, which comprises a condenser, a compressor, a flow control valve, an evaporator, a liquid storage tank, an expansion valve, a three-way joint I and a three-way joint II, the liquid outlet end of the condenser is communicated with the liquid inlet end of the liquid storage tank, the liquid outlet end of the liquid storage tank is communicated with the liquid inlet end of the expansion valve, the liquid outlet end of the expansion valve is communicated with the liquid inlet end of the second three-way connector, and the liquid inlet end of the evaporator is communicated with one liquid outlet end of the second three-way connector. The liquid inlet end of the flow control valve is communicated with the other liquid outlet end of the second three-way connector. By designing two sets of heat exchange agent flowing paths, lubricating oil in the compressor is cooled synchronously in the heating and drying process, and the service life of the compressor is prolonged.

The utility model relates to the technical field of potassium hydrogen persulfate composite salt processing, in particular to a mixing, drying and feeding all-in-one machine for potassium hydrogen persulfate composite salt processing, which comprises a base, one side of the top of the base is fixedly connected with a support assembly and a feeding assembly which are arranged in a matched mode, and the bottom of the feeding assembly is provided with a feeding pipe in a matched mode. A stirring mechanism, a diffusion cover, a connecting cylinder and a drying box which are sequentially connected from bottom to top are fixedly connected to the other side of the top of the base, a drying assembly is fixedly arranged in the drying box, an outer box body is fixedly connected to the outer side of the drying box, and a discharging pipe is fixedly connected to the outer side of the stirring mechanism. The supporting frame is matched with the guide base to achieve the effect of supporting and lifting guiding of the whole feeding base, the effect of controlling the whole feeding base to conduct lifting adjustment is achieved through the driving mechanism, and the effect of storing external potassium hydrogen persulfate composite salt is achieved through the feeding base. And the effect of conveying the potassium hydrogen persulfate composite salt into the drying box is achieved through the feeding pipe.

The invention discloses a composite mineral algal inhibition water purifying agent for algal bloom control, and belongs to the technical field of water treatment. The composite mineral algal inhibition water purifying agent is formed by directly mixing potassium monopersulfate composite salt and composite mineral according to the mass ratio of 1: (15-30), and the composite mineral is formed by mixing zeolite and bentonite. The water purifying agent is prepared by directly mixing the potassium monopersulfate composite salt and the composite mineral formed by combining the zeolite and the bentonite according to a specific proportion, the water purifying agent can rapidly and efficiently degrade extracellular algal toxin in a water body while removing cyanobacteria cells through flocculation, 90% or above of algal toxin is removed through oxidation within 30 minutes, and the water purifying agent has the advantages that the water purifying agent is environmentally friendly and free of toxic and side effects. And an effective way is provided for algal bloom treatment and algal toxin removal.

A method for sterilizing and decontaminating post-consumer absorbent products polluted with organic compounds derived from human metabolism including drug residues, the post-consumer absorbent sanitary products comprising fractions of plastic, super-absorbent polymers (SAP), and optionally cellulose, the method including at least the steps of: sterilizing (SR) the absorbent sanitary post-consumer products by heating to a temperature equal to or less than 140° C., and to a pressure lower than 4 bar, decontaminating (DC) the post-consumer absorbent sanitary products of organic compounds by treating with an oxidizing composition comprising at least one compound selected from the group consisting of hydrogen peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, potassium monopersulfate, ammonium persulfate, sodium persulfate, potassium persulfate, and ozone. The at least one compound is contained in the oxidizing composition in an amount equal to or greater than 2% by weight with respect to the dry weight of the post-consumer absorbent sanitary products.

The invention relates to a functional composition for reducing the total sugar content of tobacco leaves and increasing the potassium content of the tobacco leaves and application of the functional composition. The functional composition comprises a first component, a second component and a third component, the first component comprises potassium hydrogen persulfate; the second component comprises trisodium phosphate; and the third component comprises glucose oxidase. The raw materials including the potassium hydrogen persulfate, the trisodium phosphate and the glucose oxidase are combined for use and are matched with one another, the effects of reducing the total sugar content in the tobacco leaves and increasing the potassium content in the tobacco leaves can be achieved after the composition is applied in the tobacco growth period, then the sugar-alkali ratio and the sugar-nitrogen ratio of the tobacco leaves are balanced, the sweet sense and the aroma amount of the tobacco leaves are increased, and the tobacco quality is improved. The comfort of the sensory smoking quality of the tobacco leaves is improved.

The invention relates to the technical field of disinfectants, in particular to an efficient environment-friendly potassium hydrogen persulfate composite salt disinfectant as well as a preparation method and application thereof. The disinfectant is prepared from the following components in percentage by mass: 75 percent to 90 percent of potassium hydrogen persulfate composite salt, 0.1 percent to 5 percent of a surfactant, 0.1 percent to 6 percent of an organic activating agent, 0.1 percent to 5 percent of a pH buffering agent, 0.01 percent to 0.25 percent of an indicator, 0.1 percent to 1 percent of a carbon quantum dot corrosion inhibitor, 2 percent to 8 percent of a chelating agent, 0.1 percent to 5 percent of a synergist and 0.1 percent to 5 percent of an anti-freezing agent. The traditional Chinese medicine composition is stable in a natural state, plays a role in killing bacteria, fungi and various viruses, and does not generate toxic and harmful three-cause by-products when being used. The carbon quantum dot corrosion inhibitor researched and developed by the company is added, and the corrosion of the disinfectant to various metals can be effectively resisted. The characteristics are good and the quality is stable in the long-term storage process; the antibacterial effect of the product can still be ensured while the usage amount of the surfactant is reduced; the disinfectant has good water solubility, can be quickly dissolved when used at low temperature, and can keep the disinfection effect; the paint is nontoxic, harmless, good in biodegradability and resistant to hard water. According to the technical scheme, the compound disinfectant which is broad in spectrum, efficient, green, safe and free of irritation to people and livestock is provided.

The present application relates to a kind of ammonia content detection method in sulfurous acid-containing solution, belong to material detection technical field.The ammonia content detection method in sulfurous acid-containing solution of the present application, comprising the following steps: (1) adding potassium hydrogen persulfate to be measured sulfurous acid-containing ammonia solution and reacting with sulfurous acid, obtain the test solution;(2) using indigo phenol blue spectrophotometry to determine the ammonia content in the test solution obtained in step (1), i.e.the ammonia content in sulfurous acid-containing solution is obtained.The present application first adds oxidizing agent potassium hydrogen persulfate solution as pretreatment reagent, and reacts with sulfurous acid, eliminates sulfurous acid, while it will not produce interference factors affecting ammonia content determination.The ammonia concentration standard curve obtained by the test method of the present application, the R 2 of fitting curve has reached 0.999, which indicates that ammonia signal intensity and the concentration of standard solution have good linear relationship, further indicating that the ammonia content detection method of the present application has good detection reliability and accuracy.

The utility model relates to powder drying technical field, concretely relates to a kind of agitating mechanism for potassium hydrogen peroxodisulfate drying machine, including the stirring tank being located in the inside of drying machine, the stirring rod being located in the top of drying machine is driven by motor, the lower end of stirring rod is equipped with the helical blade that is inserted into the stirring tank, the top of stirring tank is open structure, the bottom of stirring tank is obliquely arranged, agitating mechanism further includes: the rack being located in the inside of drying machine;Lifting inclined plate being located in the lower end of stirring tank, lifting inclined plate is slidably arranged on the rack by guide rod, when using, by stirring rod drive helical blade rotation to continuously agitate potassium hydrogen peroxodisulfate material, simultaneously by drive portion drive lifting inclined plate continuously rotate, and reciprocating lifting action is carried out on the rack along guide rod, so as to realize that helical blade can agitate potassium hydrogen peroxodisulfate material in stirring tank in different positions, under the joint action of agitation and overturning crushing, guarantee consistency of drying.

The invention belongs to the technical field of solar cells, and provides an etching solution for copper seed layer etch-back and a preparation method and application thereof. The etching liquid for etching back the copper seed layer is prepared from the following components in parts by mass: 1.5 to 2.5 parts of potassium hydrogen persulfate composite salt, 0.8 to 1.2 parts of concentrated sulfuric acid, 0.02 to 0.03 part of benzimidazole compound, 0.01 to 0.02 part of organic sulfur compound and 100 parts of water. According to the etching solution for etching back the copper seed layer, a compound corrosion inhibitor benzimidazole compound and an organic sulfur compound are introduced into a potassium hydrogen persulfate compound salt etching solution system, so that full-coverage protection on the surface of a copper electrode can be realized, and the lateral erosion phenomenon of an acidic corrosive agent on the copper electrode of a solar cell can be effectively inhibited; and the corrosion inhibition capability of a copper electrode can be improved, and selective adsorption protection can be provided for a silicon-based solar cell copper grid line.