703 results about "Sodium hypochlorite" patented technology

The invention discloses a seed priming method for improving early-stage disease resistance of pepper seeds, which belongs to the field of agricultural planting and comprises the following steps: S1, pre-cleaning: soaking the seeds with sodium hypochlorite and then cleaning the seeds with sterile deionized water; s2, pulse phosphorylation activation treatment: adding seeds and an activation solution into a pressure-resistant polypropylene container connected with a vacuum pipeline, sealing, vacuumizing to-0.08 MPa, maintaining for 5-10 minutes, then recovering to normal pressure, transferring to a constant-temperature oscillator, and carrying out phosphorylation activation treatment; s3, immune training treatment: transferring the seeds subjected to phosphorylation activation treatment to an initiation solution containing UV-inactivated phytophthora capsici spore suspension and H2O2, and carrying out intermittent ventilation treatment; s4, stabilizing treatment: transferring the seeds subjected to immune training treatment into an ascorbic acid solution for treatment, filtering, and drying in the shade to obtain the pepper seeds. According to the invention, the problem of immune response interruption caused by insufficient signal intensity and fast protein turnover when a simulated environment is used for excitation in the prior art is solved.

The invention provides a method for sterile sowing and efficient propagation of cymbidium faberi. The method comprises the following steps: pretreatment of cymbidium faberi seeds, sterile germination of the cymbidium faberi seeds, protocorm proliferation, differentiation, seedling strengthening and acclimatization and transplantation. The pretreatment comprises the steps of refrigerating hybrid seeds of cymbidium orchid at 4 DEG C, performing secondary disinfection with sodium hypochlorite, performing dark culture for 10-30 days after sowing, and then performing light culture, and the germination culture medium is prepared by taking 1 / 4 MS as a basic culture medium and adding 100-200ml / L of coconut water, 0.5-1.0 mg / L of 6-benayl aminopurine, 0.1-0.5 mg / L of naphthylacetic acid, 0.5-2.0 g / L of peptone and 0.5-1.0 g / L of activated carbon. According to the method, the seed germination rate can be effectively increased, the 60d seed germination rate reaches up to 85%, the pollution rate is reduced to 5% or below, 50.0 g / L inositol, 2.0 mg / L glycine and 2.0 mg / L nicotinic acid are added into a differentiation culture formula, the differentiation rate can be effectively increased, the leaf bud differentiation rate reaches up to 90%, meanwhile, rooting can be induced, the growth time of cymbidium faberi from seeds to seedlings is greatly shortened, a large number of high-quality seedlings can be obtained within a short time, and the method is suitable for large-scale popularization and application. Technical data are accumulated for cymbidium resource protection and new variety cultivation.

The invention discloses a warm-keeping fabric containing hollow polyester fibers as well as a preparation method and application thereof, and relates to the field of fabrics. When the thermal fabric containing the hollow polyester fibers is prepared, hollow mesoporous nano cerium oxide is selectively protected by molten paraffin and then reacts with chloromethyl trimethoxy silane and isocyanuric acid in sequence, paraffin is dissolved by chloroform, and then N-(3-trimethoxysilylpropyl) pyrrole is grafted to obtain modified hollow mesoporous nano cerium oxide; reacting terephthalic acid, a multifunctional monomer and ethylene glycol to obtain modified polyester particles; the preparation method comprises the following steps: granulating modified polyester, uniformly mixing modified hollow mesoporous nano cerium oxide and polyethylene glycol 10000, performing melt spinning, treating with a pyrrole solution, twisting, spinning and weaving, and treating with a sodium hypochlorite mixed solution to obtain the thermal fabric containing the hollow polyester fibers. The warm-keeping fabric containing the hollow polyester fibers prepared by the invention has excellent warm-keeping, antibacterial, anti-aging, flame-retardant, antistatic and mechanical properties.

The invention discloses a skin-friendly antibacterial spinning yarn and a preparation method thereof, and relates to the field of spinning yarns. When the skin-friendly antibacterial spinning yarn is prepared, 3-amino-1, 2, 4-triazine and vinyl phosphonyl chloride are subjected to a reaction, and a phosphorus-nitrogen flame-retardant monomer is obtained; activating bamboo nano-cellulose with ammonium ceric nitrate, grafting a phosphorus-nitrogen flame-retardant monomer, and performing electrostatic spinning to obtain modified bamboo nano-cellulose coated fibers; dipping polyester filament yarns in dopamine hydrochloride and sodium hypochlorite in sequence to obtain modified polyester core yarns; the modified bamboo nano-cellulose wrapping fiber and the modified polyester core yarn are twisted through a ring spinning frame and then react with 3, 3 ', 4, 4'-benzophenone tetracarboxylic dianhydride, and the skin-friendly antibacterial spinning yarn is obtained. The skin-friendly antibacterial spinning yarn prepared by the method has excellent skin-friendly antibacterial property, flame retardance, aging resistance and mechanical property.

The invention provides an intelligent chemical adding control method and system, equipment and a storage medium, and belongs to the technical field of intelligent control, the method is applied to a water treatment system, and the method comprises the following steps: based on raw water data, obtaining a first chemical adding amount through a chemical adding amount prediction model; generating an initial dosing amount instruction based on the first dosing amount, and sending the initial dosing amount instruction to a polyaluminum chloride dosing device and a sodium hypochlorite dosing device; obtaining the raw water ion concentration, alumen ustum form data and a floating current value after chemical adding, calculating a first difference value between the raw water ion concentration and a target ion concentration, calculating a second difference value between the alumen ustum form data and target alumen ustum form data, and calculating a third difference value between the floating current value and a target floating current value; and determining a target correction coefficient based on the first difference value, the second difference value and the third difference value, and updating the first dosage based on the target correction coefficient to obtain a second dosage. According to the invention, the dosing precision and adaptability can be improved.

The invention discloses a medical washable high-temperature-resistant modified polyester fiber fabric and a preparation method thereof, and relates to the technical field of fabrics. The medical washable high-temperature-resistant modified polyester fiber fabric prepared by the invention is obtained by blending, spinning and weaving modified polyester and modified mica and activating with sodium hypochlorite; the modified polyester is obtained by grafting organic silicon modified polyester with n-dodecanethiol and then reacting with bromooctylhydantoin; the modified mica is prepared by polymerizing diethyl phosphite and bisphenol S on the surface of the pretreated mica, grafting a vinyl monomer and then reducing; the vinyl monomer is obtained by carrying out a reaction on 1-allyl-3-cyano-6-hydroxy-4-methyl-2-pyridone and an azo salt, and the vinyl monomer is obtained by carrying out a reaction on 1-allyl-3-cyano-6-hydroxy-4-methyl-2-pyridone and an azo salt; the medical washable high-temperature-resistant modified polyester fiber fabric prepared by the invention has good antibacterial, anti-aging and flame-retardant properties.

The invention discloses a potassium ferrate composite environmental remediation material as well as a preparation method and application thereof. The material comprises the following components in percentage by weight: 40-70% of potassium ferrate; 20-50% of a porous carrier; and 5-10% of a stabilizer. The preparation method comprises the following steps: S1, potassium ferrate synthesis: synthesizing potassium ferrate under the action of an auxiliary catalyst by adopting a sodium hypochlorite oxidation method; s2, modifying a porous carrier: activating the porous carrier with acid, soaking the porous carrier in a stabilizer solution, and drying for later use; and S3, composite loading: mixing the potassium ferrate powder and the porous carrier in proportion, then adding a binder, carrying out ball milling, then carrying out tabletting molding, and then carrying out calcination in an inert atmosphere to obtain porous composite particles, namely the environmental remediation material. The composite structure delays decomposition of potassium ferrate, and the validity period of the material is prolonged to 6 months or above. The porous carrier provides adsorption sites and cooperates with the oxidation-adsorption effect to improve the pollutant removal rate. The calcining process enhances the mechanical strength of the material, and is suitable for flowing water or deep soil injection.

The invention relates to the technical field of sewage treatment, in particular to a wastewater recycling method which comprises the following steps: cyanide breaking: in an alkaline environment, adding an oxidizing agent to oxidize wastewater; first monitoring: monitoring the oxidation reduction potential and the free cyanide concentration in real time, and adjusting the adding proportion of sodium hypochlorite based on the ORP dynamic range and the cyanide concentration attenuation rate; precipitation: adding hydroxide, and carrying out heavy metal precipitation; second monitoring: acquiring component information in the sewage, and adding sodium hydroxide and sodium sulfide in a gradient compensation manner after triggering judgment; membrane treatment: performing filtration and degradation treatment through a biological membrane; 3, monitoring: dynamically adjusting the aeration intensity and the backwashing period according to the coupling relationship between the pressure difference slope and the sludge concentration; and 4, monitoring: calculating a process capability index, judging whether the process capability index is smaller than a third threshold value, and if so, adjusting the sodium sulfide dosage in the precipitation stage. The method has the effect of reducing resource waste in the wastewater treatment process.

The utility model relates to the field of stirring for preparing sodium hypochlorite, and discloses stirring equipment for preparing sodium hypochlorite, which comprises a stirring tank, a stirring cover is arranged at the top of the stirring tank, a stirring assembly is arranged in the stirring tank, a cleaning assembly is arranged in the stirring tank, and the stirring assembly comprises a first connecting frame. The outer side of the first connecting frame is fixedly connected to the outer side of the stirring tank, a first rotating shaft is rotatably connected to the interior of the first connecting frame, a second belt wheel is fixedly connected to the outer side of the first rotating shaft, a square rod is slidably connected to the interior of the first rotating shaft, and a stirring rod is fixedly connected to the outer side of the square rod. According to the material mixing device disclosed by the utility model, through mutual cooperation of structures such as the motor, the rotating shaft, the rotating shaft I, the square rod, the stirring rod and the roller, effective coverage in the horizontal circumferential direction and the vertical direction is realized, and the uniformity and sufficiency of material mixing are greatly improved; the rapid and uniform mixing of chlorine and a sodium hydroxide solution in the sodium hypochlorite preparation process is facilitated.

The invention relates to the field of stripping hanger liquid processing, in particular to environment-friendly stripping hanger liquid and a preparation process thereof. The cleaning agent is prepared from the following raw materials in percentage by weight: 10-15% of sulfuric acid, 3-6% of tetrasodium hydroxyethylidene diphosphate, 4-6% of sodium alcohol ether sulphate, 4-8% of N-methyl-2-pyrrolidone, 4-9% of cyclohexanol, 1-2% of phenolsulfonic acid, 4-7% of sodium hypochlorite, 5-9% of hydrogen peroxide, 3-4% of ferrous sulfate, 1-3% of sodium chloride, 4-8% of a wetting agent, 0.5-0.8% of a stabilizer, 2-3% of a thickening agent, 2-3% of a penetrant and the balance of pure water. Mild chemical components adopted in the formula replace strong nitric acid and strong alkali components in a traditional hanger stripping solution, the corrosivity of the hanger stripping solution is reduced, all the raw materials meet the environment-friendly requirement, and harmful substances cannot be generated in the production and use process, and the environment cannot be polluted.

The invention discloses a preparation method of a high-curability environment-friendly dust suppression material, which is characterized by comprising the following steps: (1) weighing locust bean gum, putting the locust bean gum into a container, adding water, uniformly stirring, adjusting the pH value to 2-3 by using hydrochloric acid, adding sodium hypochlorite, heating to 50-60 DEG C, and reacting for 1-2 hours to obtain a mixed solution I; (2) adding waterborne polyurethane into the mixed solution I, heating to 60-80 DEG C, reacting for 1-1.5 hours to obtain a mixed solution II, adding erythritol, and sufficiently and uniformly mixing to obtain a mixed solution III; and (3) cooling the mixed solution III to room temperature, adjusting the pH value of the solution to be neutral, and adding a surfactant into the mixed solution III to obtain the dust suppressant solution. The mechanical property of the dust suppressant is improved, the evaporation rate of water can be reduced, a cured layer is prevented from cracking, the lasting time of the dust suppression effect is prolonged, and the need of repeatedly applying the dust suppressant is reduced.

The utility model provides sodium hypochlorite disinfection equipment for sewage treatment, and relates to the technical field of sewage treatment.The sodium hypochlorite disinfection equipment comprises a disinfection box, a lamp box body is fixedly installed in the middles of the inner walls of the four sides of the disinfection box in a penetrating mode, and an auxiliary assembly is arranged in the disinfection box. According to the ultraviolet disinfection equipment for sewage treatment, the lamp box body is arranged, the side, close to the interior of the disinfection box, of the lamp box body is made of a transparent material, light rays of an ultraviolet lamp can conveniently irradiate the interior of the disinfection box, and an auxiliary assembly and a reciprocating lead screw are arranged to drive a scraping ring to slide on the inner wall of the disinfection box and the lamp box body in a reciprocating mode; the inner wall of the disinfection box and one side of the lamp box main body can be prevented from generating scale, and the problems that in the related technology, when sewage is disinfected through sodium hypochlorite, ultraviolet lamps are generally installed on the inner wall of the treatment box, sewage disinfection is enhanced, when the sewage is disinfected through the ultraviolet lamps, irradiation is needed for a certain time, scale is easily generated after long-time use, and the sewage disinfection effect is poor are solved. And the illumination effect of the ultraviolet lamp is influenced.

The invention belongs to the technical field of cleaning of poultry eggs, and discloses a special cleaning agent for poultry eggs as well as a preparation method and application thereof. The special cleaning agent for poultry eggs comprises the following components: linear alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether sodium sulfate, cocoanut fatty acid diethanolamide, sodium silicate, sodium tripolyphosphate, sodium carbonate, sodium chloride, sodium hypochlorite, a defoaming agent, an enzyme preparation and water. The cleaning agent is used for cleaning fresh poultry eggs, dirt on the surfaces of the poultry eggs can be rapidly removed, the dirt can be prevented from being adhered again, the sterilization rate on escherichia coli, staphylococcus aureus and salmonella reaches 95% or above, meanwhile, the influence on the strength of the poultry eggs can be reduced to the maximum extent, and the breakage rate of the poultry eggs is kept at the low level.

The invention relates to the technical field of reclaimed water recycling, and particularly discloses a high-speed service area reclaimed water recycling process which comprises the following steps: step 1, fibrous membrane filtration: filtering wastewater by adopting a fibrous membrane; 2, activated carbon filtration: enabling the effluent in the step 1 to pass through an activated carbon adsorption device; step 3, sodium hypochlorite sterilization: sodium hypochlorite is added into the effluent obtained in the step 2; step 4, intercepting iron and manganese ions: intercepting metal ions from the effluent in the step 3 by using a mixed filter material; step 5, precise filtration: intercepting particulate matters from the effluent in the step 4 by adopting a PP cotton filter element; and step 6, reverse osmosis process: desalting and purifying the filtered water in the step 5 through a reverse osmosis membrane assembly, and collecting reverse osmosis produced water as recycled water reaching the standard. The technical problem that the brake spray water cannot be supplemented to a truck in the service area in time due to the fact that reclaimed water recycled by a reclaimed water recycling technology in the high-speed service area cannot meet the requirement of the brake spray water is solved.

The invention provides a sterilization control method and device, water treatment equipment and a storage medium, the method is applied to the technical field of water treatment equipment, and the method comprises the following steps: obtaining state operation parameters of the water treatment equipment; if the state operation parameter meets a preset first operation condition, controlling the water treatment equipment to operate in a slow washing mode, controlling the ozone generator to enter an operation state so as to sterilize the water treatment equipment, and controlling the water treatment equipment to be switched from the slow washing mode to a forward and reverse washing mode; and if the state operation parameter meets a preset second operation condition, controlling the sodium hypochlorite generator to operate so as to sterilize the water treatment equipment, controlling the water treatment equipment to enter a slow washing mode to operate for a preset duration, and then controlling the water treatment equipment to be switched from the slow washing mode to a positive and negative washing mode. Based on the method, the water treatment quality and efficiency of the water treatment equipment can be integrally improved, so that the water use safety of a user is improved.

The invention discloses a sintering machine head ash treatment system and method for treating waste water based on a medical waste steam method. The sintering machine head ash treatment method for treating the waste water based on the medical waste steam method comprises the following steps: S1, washing and filtering sintering machine head ash; s2, heavy metal and impurity removal treatment is conducted on the solution discharged after washing and filtering treatment, and heavy metal ions dissolved in the washing process are removed; s3, carrying out denitrification treatment on the solution discharged after heavy metal removal and impurity removal treatment, oxidizing NH3 into N2 and H2O through sodium hypochlorite, removing NH3 and generating NaCl; s4, the solution discharged after denitrification treatment is subjected to decoloration treatment; s5, carrying out evaporation salt extraction treatment on the solution discharged after the decoloration treatment; when waste water generated by medical waste high-temperature steam treatment is treated, ammonia in the sintering machine head ash washing process is removed at the same time, corrosion of strong brine to a triple-effect evaporator is prevented, and effective treatment of the two kinds of waste is achieved.

The invention discloses a degradable antibacterial fiber and a preparation method thereof, and belongs to the field of environment-friendly materials. The invention aims to solve the problems that the antibacterial long-term effect and the degradability are unbalanced, and the toxicity of an antibacterial agent conflicts with the biocompatibility. The fiber is composed of bacteriophage antibacterial peptide, polyhydroxyalkanoate, sodium hypochlorite and the like, the antibacterial peptide is derived from a bacteriophage phi 87S / 06 genome, and a mineralizing solution is prepared according to a ratio of CaCl2 to Na2HPO4 to sodium alginate of 3: 2: 2. The preparation method comprises the following steps: constructing double-plasmid engineering bacteria through gene editing to realize synergistic expression of the antibacterial peptide and PHBV, performing fermentation separation to obtain a copolymer, and performing ionic liquid dissolution, boric acid crosslinking, electrostatic spinning and mineralized coating treatment. After the product is washed for five times, the antibacterial rate is greater than 99%, the weight loss rate in 90 days is 82%, the tensile strength is 18MPa, the elongation at break is 25%, the balance of antibacterial long-term effect, degradability and mechanical property is realized, and the antibacterial material is suitable for the fields of medical dressings and the like.

The utility model relates to a novel treatment system for ammonia-containing wastewater of a nuclear power plant. The novel treatment system comprises a booster pump, an automatic flushing filter, a seawater electrolytic bath, a seawater storage tank, a chlorination pump and a reaction tank which are connected in sequence, the aeration fan and the aeration device are connected, the aeration fan is arranged outside the reaction tank, and the aeration device is arranged inside the reaction tank; the two ends of the wastewater reflux pump are connected with the reaction tank, and the wastewater reflux pump is arranged outside the reaction tank. Compared with the existing technology for removing ammonia nitrogen by purchasing sodium hypochlorite, the device has the characteristics that the operation cost is low, the dosing cost is about 30% of that of the prior art, compared with the biological method and gaseous membrane method ammonia removal process, the sludge and the byproducts are not generated, the treatment problem of the sludge and the byproducts is solved, the water quality of the produced water is good, and the production cost is low. The ammonia nitrogen can be reduced to below 5mg / L, and the limitation on the ammonia nitrogen in the emission standard is met.

The invention belongs to the technical field of water treatment, and relates to a method for removing new pollutants in water by using a far ultraviolet assisted sodium hypochlorite system. The method comprises the following steps: S1, adjusting the pH value of a to-be-treated aqueous solution containing new pollutants to 4-10; s2, adding a sodium hypochlorite oxidizing agent into the aqueous solution to be treated and continuously stirring; and S3, carrying out a reaction under the ultraviolet wavelength of 200 to 230 nm. Compared with the prior art, the method has the advantages that the far ultraviolet light source and the sodium hypochlorite are jointly applied, so that the oxidation capacity of the sodium hypochlorite is improved, meanwhile, the high-energy characteristic of far ultraviolet light is fully played, efficient photocatalytic degradation of new pollutants difficult to degrade is realized, and the overall water treatment efficiency is remarkably improved.

The invention relates to the technical field of organic synthesis, in particular to a preparation method of erythritol sulfate. The preparation method of erythritol sulfate provided by the invention comprises the following two key steps: firstly, carrying out chlorination reaction on ethylene sulfate and chlorine under the catalysis of ultraviolet light to generate chloroethylene sulfate, and then carrying out dechlorination coupling reaction on the chloroethylene sulfate under the action of metal powder such as copper powder, zinc powder, iron powder and magnesium powder to obtain the erythritol sulfate. And the erythritol sulfate is prepared. Compared with the prior art, the novel method for preparing erythritol sulfate provided by the invention has the advantages that the use of sodium hypochlorite is avoided, and the generation of wastewater is reduced; moreover, the method provided by the invention has the advantages of mild reaction conditions, easily available raw materials and high reaction selectivity, the generation of byproducts can be effectively controlled in the reaction process, and the production efficiency and the product purity of the erythritol sulfate are remarkably improved.

The invention discloses a tissue culture and rapid propagation method for a fig male tree germplasm material, and belongs to the technical field of plant tissue culture and rapid propagation. The specific method comprises the following steps: (1) obtaining and disinfecting an explant; (2) primary culture of buds; (3) subculture multiplication of buds; (3) rooting culture; and (4) hardening seedlings and transplanting. According to the method, the optimal culture medium for tissue culture and rapid propagation of the fig male tree is obtained by combining different hormones and adjusting different hormone concentration ratios, and the differentiation and proliferation of buds of the fig male tree and the growth and rooting rate of seedlings are remarkably improved. In the explant treatment, tebuconazole carbendazim, 75% alcohol and sodium hypochlorite are adopted for the first time, so that the use of a highly toxic reagent mercury bichloride is avoided; cefotaxime sodium is added into a primary culture medium, so that the pollution rate of explants is reduced; the method is simple to operate, time-saving, labor-saving, safe and environment-friendly, and improves the inoculation quality and efficiency. The method is not limited by seasons, enlarges the excellent male tree population of the figs in a short time, and lays a foundation for cultivating new germplasm of the figs.

The invention discloses an intelligent sodium hypochlorite adding system based on Internet of Things control. The intelligent sodium hypochlorite adding system comprises a data collection module, a data transmission module, a data analysis module and a control terminal, the data collection module is used for collecting water quality information of a water sample and transmitting the collected information to the data analysis module, the data transmission module is used for transmitting the collected water sample information and current equipment operation state data to the data analysis module, and the data analysis module is used for analyzing the received data; the data transmission module is connected with the data transmission module, the data transmission module is connected with the data transmission module, the data transmission module is connected with the data transmission module, the data transmission module is connected with the data transmission module, the data transmission module is connected with the data transmission module, the data transmission module is connected with the data transmission module, and the data transmission module is connected with the data transmission module. And the data analysis module is connected with the Internet of Things, so that the device can run on the basis of the Internet of Things, can remotely monitor the running state of the equipment and remotely control the equipment, and can be operated and monitored anytime and anywhere.

An aspect of the present invention provides a system for producing sodium hypochlorite and hydrogen gas, comprising: a desalination unit for desalinating seawater to generate a fresh water stream and a concentrated water stream; a crystallization unit for crystallizing the concentrated water stream to generate a solid raw material containing sodium chloride; an electrolysis unit for electrolyzing reactants, derived from the solid raw material and water, to generate sodium hypochlorite and by-product gas; and a gas purification unit for purifying the by-product gas to generate hydrogen gas.

The invention provides a reverse osmosis optimal dosing system and method based on ultraviolet sterilization, and the method comprises the following steps: firstly, the system monitors the influent microorganism load and water quality in real time, dynamically calculates the required ultraviolet dosage, and precisely adjusts the power of an ultraviolet sterilizer; secondly, according to the residual microorganism risk and the water inlet flow after ultraviolet treatment, the feeding amount of an oxidizing bactericide (such as sodium hypochlorite) is accurately adjusted according to a PID control strategy combining feedforward and feedback; meanwhile, according to the oxidation-reduction potential of the sterilized water body, a reducing agent (such as sodium hydrogen sulfite) is intelligently added to protect the reverse osmosis membrane. And finally, efficient cooperation of ultraviolet physical sterilization and chemical sterilization is achieved, on the premise that strict control over microbial pollution is guaranteed, the consumption and operation cost of chemical agents are remarkably reduced, generation of by-products is reduced, the service life of a reverse osmosis membrane is prolonged, and the intelligent level of system operation and the overall economic benefits are improved.

The invention relates to the technical field of sodium hypochlorite generators, and discloses a sodium hypochlorite generator with an automatic dilute brine proportioning device. One end of the inclined plate is connected with the side wall of the saline water generating device; a flow guide pipe; and a push rod; the non-iodized edible salt added into the salt water generating device sequentially rolls on the inclined plates, so that the phenomenon that the salt is piled and caked due to the fact that a large amount of non-iodized edible salt is added at a time can be avoided; water sprayed from the liquid spraying opening to the inclined plates can impact salt blocks attached to the inclined plates, downward rolling of the salt blocks is accelerated, on one hand, the salt blocks are premixed with the attached salt blocks, and on the other hand, flowing force of the water sprayed from the liquid spraying opening can drive the transmission assembly to drive the push rod to do reciprocating rectilinear motion on the inclined plates, so that the salt blocks attached to the inclined plates are fully scraped off, and the salt removal efficiency is improved. It is ensured that the added non-iodized edible salt can be fully mixed with tap water after being scattered in batches and cannot be left on the inclined plate to cause waste, and then the preparation efficiency of the saturated salt water is ensured.

The invention discloses a ceramic membrane cleaning agent which comprises an agent A, an agent B, an agent C and water, wherein the agent A comprises sodium dodecyl sulfate and a polyoxyethylene ether nonionic surfactant; the agent B comprises potassium pyrophosphate and ethylenediamine tetraacetic acid tetrasodium salt; the agent C comprises sodium hypochlorite. The invention further discloses a preparation method of the ceramic membrane cleaning agent. The problems that an existing ceramic membrane cleaning agent is common in cleaning effect, and the service life of a ceramic membrane is affected due to incomplete cleaning are solved. The agent A is selected from sodium dodecyl sulfate and a polyoxyethylene ether nonionic surfactant, and the sodium dodecyl sulfate and the polyoxyethylene ether nonionic surfactant both have an emulsifying effect and good compounding property and can enhance the emulsifying effect through a synergistic effect; in the agent B, the potassium pyrophosphate and the tetrasodium ethylenediamine tetraacetate have a synergistic effect, and the potassium pyrophosphate and the tetrasodium ethylenediamine tetraacetate are matched, so that the cleaning effect can be improved, and the decontamination capability can be enhanced. The agent C is matched with the agent A and the agent B, so that the overall stability of the cleaning agent is ensured. Therefore, the ceramic membrane has antibacterial, efficient decontamination and efficient emulsification performance at the same time.

The invention belongs to the technical field of sodium hypochlorite production, and particularly relates to a method for producing sodium hypochlorite. A method for producing sodium hypochlorite comprises the following steps: adding a compound additive into a sodium hydroxide aqueous solution, and uniformly stirring to obtain a compound alkali-containing raw material solution; respectively introducing the composite alkali-containing raw material solution and chlorine into the micro-channel reactor through a metering pump, and controlling reaction conditions to generate a reaction solution containing sodium hypochlorite; introducing the reaction liquid into a ceramic membrane separation device, separating and removing unreacted solid impurities and by-product salts, and collecting permeate; unreacted sodium hydroxide is recycled and reused; and detecting the permeate liquid to be qualified to obtain a sodium hypochlorite finished product. According to the invention, four key links of compound additive addition, microchannel reaction, ceramic membrane separation and resin recovery are organically linked to form a systematic solution. Aiming at the core pain points of insufficient reaction, more byproducts, raw material waste, equipment corrosion and the like in the traditional process, the product purity is improved through the synergistic effect of all links.

The invention provides a fracturing fluid base fluid, a water-based fracturing fluid and a preparation method of the water-based fracturing fluid, and relates to the technical field of oil fields. The fracturing fluid base fluid is prepared from the following components in percentage by mass: 97.3 percent to 98.1 percent of produced water, 0.5 percent to 0.55 percent of hydroxypropyl guar gum, 0.004 percent to 0.005 percent of sodium hypochlorite, 0.015 percent to 0.03 percent of citric acid, 0.1 percent to 0.18 percent of dodecyl dimethyl benzyl ammonium bromide, 0.2 percent to 0.3 percent of ethylenediamine tetraacetic acid disodium salt, 0.3 percent to 0.5 percent of a temperature stabilizer, 0.6 percent to 0.8 percent of a pH value regulator and 0.2 percent to 0.3 percent of a cleanup additive; the pH value of the fracturing fluid base fluid is 7.5. The fracturing fluid base fluid prepared from the produced water has the advantages of rapid adhesion, no precipitation, no weak crosslinking and no floccule phenomenon, so that the guar gum fracturing fluid prepared from the fracturing fluid base fluid has the characteristics of self-adaption to a reservoir, ultralow damage and high performance.

A sodium hypochlorite on-line preparation and on-line dilution fusion feeding system comprises a sodium hypochlorite generator and a feeding lifting pump, at least two transfer storage tanks are connected between a liquid outlet pipe of the sodium hypochlorite generator and a liquid inlet of the feeding lifting pump in parallel through pipelines, at least one of the transfer storage tanks is a dual-purpose storage tank, and the other transfer storage tank is a dual-purpose storage tank. Valves are arranged on a liquid inlet pipe and a liquid outlet pipe of the dual-purpose storage tank; the dual-purpose storage tank is respectively communicated with a liquid outlet of the commercial sodium hypochlorite lifting pump and a liquid inlet of the online proportional dilution device through pipelines with valves; the liquid inlet of the on-line proportional dilution device is also communicated with a soft water inlet pipe; and a liquid outlet of the on-line proportional dilution device is communicated with a liquid outlet pipe of the sodium hypochlorite generator through a pipeline with a valve. According to the system, the preparation, dilution and adding processes of sodium hypochlorite are integrated together, so that the efficiency and the safety are improved, the equipment cost and the occupied area are reduced, and deterioration waste caused by inconvenience in use of high-concentration commodity sodium hypochlorite is avoided.

The invention relates to a treatment method of a high-COD (Chemical Oxygen Demand) hydroxylamine wastewater solution, and belongs to a wastewater treatment technology. According to the method, a mild treatment mode is adopted, the safe discharge standard can be met through combined and coordinated treatment of sodium hypochlorite, sodium sulfite and activated carbon, microorganisms can reach biodegradability through the treated wastewater, the purpose of turning waste into wealth is achieved, and the method is easy to operate and low in cost. The method is high in safety and can be used for industrial treatment.