208 results about "Calcium peroxide" patented technology

The invention relates to a Fenton-like functional filler which is prepared from 10-20% of iron particles coated with a carbonized film, 10-20% of aluminum sulfate modified straw, 20-30% of PBAT-coated calcium peroxide, 20-30% of diatomite and 10-30% of an adhesive. A processing method of a Fenton-like functional filler comprises the following steps: uniformly mixing iron particles coated with a carbonized film, aluminum sulfate modified straws, PBAT-coated calcium peroxide and diatomite, then adding an adhesive, mixing isocyanate serving as the adhesive with polyol according to a volume ratio of 1: 5, and continuously and uniformly mixing; then the mixed raw materials are injected into a mold coated with a release agent in advance, the mold temperature ranges from 40 DEG C to 60 DEG C, the foaming curing time ranges from 15 min to 20 min, and the Fenton-like functional filler can be obtained. The invention relates to an application of a Fenton-like functional filler in constructed wetlands. The method has the beneficial effects that the method is not influenced by temperature, and the removal effect of the constructed wetland on nitrate nitrogen and refractory COD (Chemical Oxygen Demand) can be obviously enhanced.

The invention provides a potassic salt ore old brine-tail salt full-recycling cemented filling process based on magnesium-calcium synergistic conversion, and belongs to the field of potassic salt ore goaf filling, CaO is added into old brine for reaction to obtain Mg (OH) 2 / Ca (OH) 2 mixed precipitate, then a dispersing agent is added, and solid-liquid separation is performed to obtain a solid mixture and a post-reaction mother solution; dividing the tail salt into particle sizes gt according to particle sizes; the method comprises the following steps: mechanically grinding coarse tail salt with the particle size of 75 microns and fine tail salt with the particle size of less than or equal to 75 microns until the particle size lt is reached; filtering to obtain activated crude tail salt; mixing the fine tail salt with an exciting agent, and activating through ball milling to obtain activated fine tail salt; and mixing the activated crude tail salt, the activated fine tail salt, the solid mixture and the reacted mother liquor, adding a retarder and a water reducing agent, stirring to obtain filling slurry, and pumping the filling slurry into a well for filling in multiple layers. According to the method, Mg < 2 + > in old brine is directionally converted through calcium oxide to generate a Mg (OH) 2 / Ca (OH) 2 gelling phase, and a low-cost and high-strength filling system is formed by combining a tail salt grading activation technology.

The invention belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a biochar-based oxygen-releasing material for gleying soil improvement as well as a preparation method and application of the biochar-based oxygen-releasing material. The biochar-based oxygen release material is a CaO2 at phosphorus-rich biochar material obtained by taking modified phosphorus-rich biochar as a carrier and combining with calcium peroxide, and has remarkable beneficial effects in the field of gleying rice field improvement. According to the biochar-based oxygen release material, the mass fraction of calcium peroxide is remarkably increased, so that the oxygen release function of the material is enhanced, and the biochar-based oxygen release material has important significance for improving the ventilation condition of a rice field and promoting the growth of a rice root system. In the preparation process, raw materials such as dimethylbenzene and polyethylene which may cause soil pollution and ecological problems are avoided, and the environment-friendly concept is embodied. Meanwhile, the modified biochar not only serves as a carrier to improve the loading capacity of calcium peroxide, but also has the function of releasing a phosphate fertilizer, and is beneficial to improvement of the soil fertility of the rice field and increase of the rice yield.

The invention discloses a rice seed pelleting agent with the effects of promoting rice seedling strengthening and cold and waterlogging resistance in the bud stage, and belongs to the technical field of seed pelleting. The rice seed pelleting agent comprises an adhesive, an inert filling substance and a specific substance. Wherein the adhesive is 20% Arabic gum, the inert filling substance is bentonite, talcum powder and clay in a ratio of 1: 6: 3, the weight ratio of the inert filling substance to the rice is 2: 1, the active components comprise charcoal and calcium peroxide, the weight ratio of the charcoal to the naked rice seeds is (0.2-0.4): 1, and the weight ratio of the calcium peroxide to the naked rice seeds is (0.6-0.8): 1. The pelleting agent can promote rice seed germination and seedling establishment and enhance the stress resistance of rice.

The invention relates to the technical field of sewage treatment, in particular to a method for improving the denitrification nitrogen removal performance of a corn or rice straw fermentation carbon source by using industrial glucose. According to the method, the straws are soaked and pretreated by adopting calcium peroxide, and meanwhile, in the anaerobic fermentation process, the anaerobic condition is kept through nitrogen, and zero-valent iron is added to obtain the straw fermentation liquor. Fermentation liquor and industrial glucose are mixed to serve as a composite carbon source, the activity of microorganisms in a sludge system is stimulated through the usability of the glucose, and the utilization rate of the microorganisms to the rice and corn fermentation liquor carbon source is increased; anaerobic fermentation conditions of rice and corn straws are optimized, the carbon source release rate is increased, the complexity of carbon source composition of fermentation liquor is utilized, the diversity of microorganisms is improved, excessive propagation of the microorganisms is avoided, and the biological denitrification capacity is improved. The method disclosed by the invention is beneficial to resource utilization of agricultural wastes, reduces the biological denitrification cost of sewage with a low carbon-nitrogen ratio, and promotes green and low-carbon development of sewage treatment.

The invention discloses a composite conditioner for acid soil of slope cropland and application of the composite conditioner. The conditioner comprises the following components in percentage by mass: 12%-18% of calcium peroxide, 18%-32% of a buffer mineral compound, 1.5%-3.0% of an anti-scouring controlled-release material, 10%-25% of a nutrient carrier and fertilizer, 0.5%-3.0% of a binder and a granulation aid, and the balance of inert filler and water. The preparation process comprises the steps of dry mixing, granulation, drying and coating. The product provided by the invention can realize high residue of CaO and stable pH under the condition of heavy rainfall of slope cropland, effectively inhibit the pH fall of acid soil, reduce aluminum toxicity and reduce nutrient loss. By controlling the content and proportion of the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material, the calcium peroxide, the buffer mineral compound and the anti-scouring controlled-release material have a synergistic effect in a slope cropland environment, so that not only is the initial rapid acid inhibition capability ensured, but also the lasting pH stability and high residual rate are realized through buffer and controlled-release technologies.

The invention is applicable to the technical field of hydrogel, and provides dynamic cross-linked hydrogel and a preparation method and application thereof, and the preparation method comprises the following steps: cross-linking oxidized dextran and carboxymethyl chitosan containing phenylboronic acid modification groups; glucanase is added before the hydrogel is formed, and calcium peroxide nanoparticles coated with polydopamine are introduced; wherein the mass concentration of the oxidized dextran is 2-10% w / v, the mass concentration of the carboxymethyl chitosan containing the phenylboronic acid modified group is 2% w / v, the concentration of the glucanase is 10-100 U, and the concentration of the calcium peroxide nanoparticles coated with the polydopamine is 0.1-1% w / v. The hydrogel disclosed by the invention shows good cell compatibility, angiogenesis promoting capability and bioactivity for promoting dental pulp regeneration in multiple in-vitro and in-vivo experiments, is suitable for tissue engineering fields such as dental pulp injury repair and the like, and effectively solves the technical problem that conventional hydrogel is insufficient in cell survival support in three-dimensional culture and the like.

The invention provides a temperature-increasing oxygen-increasing agent for waterlogging type medium and low yield fields and a preparation method of the temperature-increasing oxygen-increasing agent. The temperature-increasing oxygen-increasing agent is prepared from the following raw materials in parts by weight: 80 to 130 parts of tea seed cakes, 80 to 110 parts of aged chicken manure, 140 to 180 parts of straw powder, 7.7 to 10 parts of beneficial bacteria, 0.3 to 0.8 part of alginate oligosaccharide, 9.5 to 12 parts of silicon-calcium-magnesium ore powder, 200 to 220 parts of activated humic acid and 340 to 430 parts of calcium peroxide. The fertilizer has comprehensive nutrients, can effectively improve the utilization rate of the fertilizer, improve the soil structure and promote production and income increase, takes organic matters as a carrier, is added with a large amount of activated humic acid and silico-calcium-magnesium ore powder, has strong chelating ability, promotes the formation of soil aggregates and improves the absorption and utilization rate of plant nutrients, and has good application prospects through a unique coating technology. The active ingredients and the granulation rate of the product are effectively improved.

The invention discloses a temperature-controlled anti-inflammatory and antibacterial skin wound dressing capable of promoting revascularization and a preparation method and application thereof, and relates to the technical field of medical materials, the preparation method comprises the following steps: S1, preparing calcium peroxide microspheres; s2, the poloxamer 407, the chitosan and the forsythiaside A are jointly dissolved in an acetic acid solution, and mixed gel is obtained; s3, dispersing calcium peroxide microspheres into the mixed gel to obtain the skin wound dressing capable of controlling temperature, resisting inflammation and bacteria and promoting revascularization. The traditional Chinese medicine active ingredient forsythiaside A is loaded, so that the healing efficiency of diabetic wounds is improved; due to the temperature-sensitive property of the gel, the gel can be better attached to the wound, the antibacterial property can inhibit microorganism breeding at the wound surface, the oxygen release capacity can improve the anoxic environment at the wound, and the loaded traditional Chinese medicine active ingredient forsythiaside A has the anti-inflammatory capacity, promotes cell regeneration at the wound and accelerates the repair process.

The invention belongs to the technical field of biochar oxygen release materials, and particularly relates to a carbon-based calcium peroxide material with an oxygen slow release function as well as a preparation method and application of the carbon-based calcium peroxide material. Silicon-rich agricultural wastes are converted into biochar through controllable pyrolysis, mesoporous biochar is prepared by regulating and controlling the pore structure of the biochar, phosphorus-rich biochar is prepared by combining phosphate modification, and finally, the carbon-based calcium peroxide material with the slow-release oxygen function is obtained by compounding the phosphorus-rich biochar with calcium peroxide. Oxygen can be continuously and stably released into the soil, and meanwhile, the phosphorus-rich biochar can also provide phosphorus nutrients to promote the growth of the rice. The material can be widely applied to improvement of gleying rice fields, effectively solves the problem of soil anoxia, improves soil fertility and rice yield, and has the characteristics of environmental protection, economy and high efficiency.

The invention relates to the technical field of seed treatment, and provides a pelleting method for alfalfa seeds used in a coastal saline-alkali district, and the alfalfa seeds sequentially comprise seeds, a hormone layer, a first oxygenation breathable layer, a nutrition layer, a second oxygenation breathable layer and an outer protection layer from inside to outside; the raw material of the hormone layer comprises gibberellin; the raw materials of the first oxygen-increasing breathable layer comprise an adhesive and a functional material; the raw material of the second oxygenation breathable layer comprises a functional material; the functional material comprises gypsum and / or calcium peroxide; the raw material of the outer protection layer comprises organic acid. By means of the technical scheme, the problem that the emergence rate of alfalfa seeds is low due to the fact that saline-alkali soil in a saline-alkali area is large in viscosity and poor in air permeability in the prior art is solved.

The present application belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a carbon-based calcium peroxide material with oxygen-releasing function, a preparation method and application thereof. Silicon-rich agricultural waste is converted into biochar through controllable pyrolysis, the pore structure of the biochar is regulated, mesoporous biochar is prepared, the mesoporous biochar is modified by phosphates to prepare phosphorus-rich biochar, and finally, the phosphorus-rich biochar is combined with calcium peroxide to obtain the carbon-based calcium peroxide material with oxygen-releasing function. The material has excellent oxygen-releasing performance and can continuously and stably release oxygen into the soil. Meanwhile, the phosphorus-rich biochar can also provide phosphorus nutrients to promote the growth of rice. The material can be widely applied to the improvement of gleyed paddy fields, effectively solves the problem of soil oxygen deficiency, improves soil fertility and rice yield, and has the characteristics of environmental protection, economy and high efficiency.

The invention provides a near-infrared light mediated hybrid hydrogel multi-bioactivity synergistic tissue repair promoting material as well as a preparation method and application thereof, and relates to the technical field of biological materials. The method comprises the following steps: 1) dispersing calcium peroxide in a solvent, and adding a 3-hydroxytyramine hydrochloride solution for reaction to obtain CaO2 (at) PDA nanoparticles; enabling the CaO2 (at) PDA nano-particles to react with a catalase solution, so as to obtain ORN oxygen release particles; (2) mixing the ORN oxygen release particles with the surfaces rich in sulfydryl with Se-NPs with the surfaces rich in selenol after reduction treatment under the protection of inert atmosphere to obtain ORN-coated Se composite particles; the preparation method comprises the following steps: dissolving hyaluronic acid methacrylate in deionized water, adding the ORN-coated Se composite particles, uniformly mixing, adding a photoinitiator, and carrying out ultraviolet curing to obtain the ORN-coated Se-HAMA hydrogel which can realize local response oxygen supply on an anoxic wound surface and has antibacterial and antioxidant characteristics.

The invention provides an exosome freeze-drying protective dressing and a preparation method thereof, and belongs to the technical field of dressings. Mixing a protective agent and the exosome, and embedding the mixture in a chitosan-sodium tripolyphosphate microcapsule to obtain an embedded exosome; the preparation method comprises the following steps: adding an extracellular matrix modified by MXene and graphene, calcium peroxide microspheres and an embedded exosome into a poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel, and carrying out freeze drying to obtain the exosome freeze-drying protective dressing, wherein the extracellular matrix modified by MXene and graphene, the calcium peroxide microspheres and the embedded exosome are added into the poly (alpha, beta-aspartic hydrazide)-C16 copolymer-silver hydrogel; the prepared exosome freeze-dried protective dressing has good biocompatibility, can rapidly promote wound healing, reduce inflammatory response of wounds, play antibacterial and bacteriostatic effects and avoid wound deterioration, is convenient to store and transport, still has good activity after long-term storage, and has wide application prospects in the field of rapid wound healing.

The invention discloses a vinylene carbonate production waste treatment method, which comprises: dispersing triethylamine hydrochloride waste residue in water, filtering, adding excess alkali into the filtrate to carry out an alkaline hydrolysis reaction, and standing for layering to obtain an oil phase and a water phase, the oil phase containing triethylamine; adding calcium peroxide into the water phase, mixing and stirring to obtain a pretreatment solution; performing electrochemical catalytic oxidation treatment on the pretreatment solution, wherein a graphite felt electrode modified by a specific iron-based activated carbon catalyst is used as a cathode in the electrochemical catalytic oxidation treatment; the method is simple to operate, easy to implement, high in continuity, low in cost, free of high-temperature and high-pressure processes and excellent in treatment effect.

The invention provides a composite flocculant, and relates to the technical field of wastewater treatment. The composite flocculant is prepared from chitosan and humate, heavy metal cadmium and arsenic are removed, the sludge volume is reduced, a method for synchronously removing cadmium and arsenic in acid mine wastewater is provided, thorough removal of cadmium and arsenic is achieved through the synergistic effect of calcium peroxide, the diatomite adsorbent and the composite flocculant, and the service life of the composite flocculant is prolonged. The mass and volume of the sludge are reduced, the wastewater treatment cost is reduced, and the method is a rapid, economic and efficient environment-friendly treatment scheme for the acid mine wastewater.

The invention relates to the technical field of environmental restoration, and discloses a calcium carbonate coated calcium peroxide slow-release nano material as well as a preparation method and application thereof. The slow-release nano material comprises calcium peroxide and calcium carbonate and is of a core-shell structure, an inner core layer is calcium peroxide, and a shell is calcium carbonate; the preparation method comprises the following steps: continuously stirring a calcium peroxide suspension for 5-60 minutes in a normal-temperature normal-pressure and open system to spontaneously finish calcium carbonate coating without using other materials or chemical reagents. The calcium carbonate shell in the slow-release nano material provided by the invention not only enables calcium peroxide to realize H2O2 slow release, but also widens the pH application range of the material to 3.0-11.0. Compared with the prior art, the method is extremely simple in preparation process, low in cost, green, environmentally friendly and suitable for in-situ chemical oxidation repair of organic matter polluted sites.

The application discloses a kind of organic waste composting methods for reducing nitrogen loss, belong to the technical field of organic waste resource utilization, in different stages of organic waste fermentation, calcium peroxide is added, on the one hand, can maintain the oxygen environment of heap system, inhibit denitrification;On the other hand, by regulating the pH environment in system, reduce ammonia volatilization.This double synergistic effect, continue to increase efficiency in the whole composting fermentation process, oxygen regulation breaks down the gaseous nitrogen loss caused by denitrification from the root, pH regulation effectively inhibits free ammonia volatilization, the two effects cooperate with each other, throughout the whole process, can realize the efficient nitrogen conservation of organic waste raw materials from fermentation start to stable decomposition, effectively solve the problems that existing nitrogen conservation technology is not good, cost is high, easy to cause secondary pollution and affect composting maturity etc..

The present invention provides a composition for remediating petroleum hydrocarbon-contaminated soil and its use. The composition comprises a peroxide, a persulfate, and a free radical initiator. By adding an initiator to a dual oxidant system comprising peroxide and persulfate, the use of catalysts and chelating agents can be avoided, resulting in a high degradation rate for petroleum hydrocarbons in the soil. It is believed that the addition of the initiator can stimulate the persulfate and calcium peroxide to generate active free radicals, generating SO4· ‑ They stimulate each other and work together to achieve the purpose of repairing soil contaminated by organic matter.

This invention discloses an in-situ three-dimensional bioremediation method for slightly polluted water bodies. The method involves collecting a mud-water mixture from the water body to be treated, enriching and culturing it, and collecting the settled sludge. Culture medium II is added to the settled sludge for acclimatization and cultivation to prepare a biological agent. This biological agent is then added to a mixed solution of polyvinyl alcohol-hydrated calcium silicate-fulvic acid (PVA-CSH-FA) or PVA-modified zeolite-FA to prepare an immobilized biological carrier that can slowly release or adsorb calcium ions from the water. Calcium peroxide packing is also prepared to provide oxygen. The immobilized biological carrier packing and calcium peroxide packing are respectively fixed in the upper and lower layers of an ecological sedimentation bed, which is then placed in the slightly polluted water body to achieve in-situ three-dimensional bioremediation. The calcium-precipitating bacterial biological agent obtained through enrichment and acclimatization in this invention, when immobilized and mixed with the carrier material, efficiently and simultaneously removes pollutants such as nitrogen, phosphorus, organic matter, and heavy metals from slightly polluted water bodies.

The invention belongs to the technical field of petroleum hydrocarbon contaminated soil remediation, and particularly relates to a calcium peroxide pre-oxidation and microorganism synergistic remediation method for a petroleum hydrocarbon contaminated site. The method comprises the following steps that 1, 10-20 g / kg of calcium peroxide is added into soil, an activating agent is added, the water content of the soil is adjusted, pre-oxidation culture is conducted, and the pre-oxidation time is 20-25 days; 2) adding a conditioning agent, and adjusting the pH value of the soil to an interval range suitable for microbial growth; 3) applying a microbial nutrient in a spraying manner according to 1%-3% of the mass of the soil; and 4) adjusting the moisture content of the soil, maintaining the environment temperature at 24-26 DEG C under an aerobic condition, and culturing for 55-95 days. A small dose of activated calcium peroxide (CP) is adopted to perform pre-oxidation treatment on petroleum hydrocarbon pollutants in the soil, so that the activity of indigenous microorganisms can be enhanced, and the petroleum hydrocarbon polluted soil is remedied by cooperating with the indigenous microorganisms.

A rice direct seeding seed coating method with iron powder as main raw material, comprising the following steps: 1) weighing rice seeds and pouring into a coating machine, carrying out spiral mixing, spraying water on the surface of the rice seeds in the coating machine to make the surface of the rice seeds evenly wet; 2) adding raw materials to the rice seeds in the coating machine for at least two times, adding sodium carboxymethyl cellulose, calcium sulfate powder, iron powder and calcium peroxide powder in sequence in steps each time, and finally adding a fungicide; the raw material dosages are based on the weight of the rice seeds: sodium carboxymethyl cellulose 1.5-3%, calcium sulfate CaSO4·2H2O 2-6%, calcium peroxide CaO2 4-8%, iron powder 35-45%, and the fungicide 0.1-0.4%, and the water addition amount is not more than 30%; 3) spreading the coated rice seeds into a container and drying under ventilation. The present application adopts iron powder to coat the rice seeds for direct seeding, without seed disinfection, with deeper seed fall depth, improved seed germination rate, enhanced rice plant lodging resistance, and high-efficiency weed control by direct seeding in water.

The present application discloses a method for producing sodium carbonate and high-strength gypsum by using calcium carbonate and sodium sulfate as raw materials. In the present application, two low-value-added salts, sodium sulfate and calcium carbonate, are used as raw materials, and are combined with an ammonia cycle to produce a high-value-added product, i.e., sodium bicarbonate or sodium carbonate, and high-strength gypsum; by means of a calcium-oxide-based deamination unit, full cycling of an ammonia raw material in a production process is realized; and by producing the high-strength gypsum, the economic efficiency of the process is improved. The method provided in the present application has the advantages of a simple process, stable operation, low investment and low production costs.

The invention belongs to the technical field of medical materials, and discloses a novel titanium-based implant material with oxygen-releasing, antibacterial and osteogenesis-promoting properties and a preparation method of the novel titanium-based implant material. The titanium-based implant material comprises a titanium substrate and calcium peroxide on the surface of the titanium substrate. The invention provides a method for modifying a compact or porous titanium-based implant material by using calcium peroxide. The characteristic that calcium peroxide reacts with water to release oxygen, hydrogen peroxide and calcium ions and the biological activity of calcium ions in the aspect of bone repair enable the titanium-based implant material to have application potential in the aspects of preventing / relieving / treating implant bacterial infection, large-size bone defect oxygen supply insufficiency and poor osseointegration.

The invention discloses a diatomite chemical foaming synergistic hierarchical porous cement-based coating as well as a preparation method and application thereof. Raw materials of the cement-based coating comprise a solid component and mixing water. The solid component is prepared from the following components in parts by weight: 55 to 65 parts of cement binding material, 20 to 30 parts of diatomite powder, 3 to 5 parts of calcium peroxide powder, 3 to 5 parts of stearate powder, 0.3 to 0.8 part of fiber, 1.7 to 2.5 parts of citric acid powder, 4.5 to 6.5 parts of isobutyltriethoxysilane and 0.5 to 1.0 part of dibutyltin dilaurate. Gradient multistage pore channels are constructed through directional pore forming in a cement-based material, differential modification of pore walls / pore channels by a double-hydrophobic barrier is cooperated, and a liquid water transmission path is cut off while a water vapor diffusion channel is maintained, so that the problem of three-element balance of ventilation, water resistance and mechanical strength is solved; and the service life of the cement structure body in an extreme environment is prolonged.

The application belongs to the technical field of biological medicine, and particularly relates to a kind of composite nanoparticles and its preparation method and application.The composite nanoparticles provided by the application include nano calcium peroxide, hyaluronic acid coated on the surface of the nano calcium peroxide and urease coated on the surface of the hyaluronic acid.In the application, the hyaluronic acid has tumor cell targeting property, which is conducive to accurately delivering the composite nanoparticles to tumor cells;at the same time, the hyaluronic acid can fix the urease on the surface of the nano calcium peroxide, which is conducive to improving the biological mineralization rate.In the application, when the composite nanoparticles enter the tumor microenvironment under the condition of providing urea outside, they are affected by the acidic microenvironment, the nano calcium peroxide decomposes to release calcium ions, and at the same time, the urease specifically decomposes urea in the microenvironment to release carbonate ions, the calcium ions and carbonate ions produce a mineral layer on the surface of the cell membrane through synergistic effect, thereby blocking the channel of cell material exchange and inducing cell apoptosis.

The invention discloses a composite bone repair material as well as a preparation method and application thereof, and belongs to the technical field of biomedical materials. The composite bone repair material comprises an etched cobalt magnesium europium molybdenum hydrotalcite nanosheet, calcium peroxide nanoparticles and an akermanite scaffold, the calcium peroxide nano-particles are loaded on the etched cobalt magnesium europium molybdenum hydrotalcite nano-sheets and are marked as a-CoMgEuMo-LDH (at) CaO2, and the a-CoMgEuMo-LDH (at) CaO2 is attached to the surface of the akermanite bracket and is marked as a-CoMgEuMo-LDH (at) CaO2-AKT. The composite bone repair material disclosed by the invention shows strong active oxygen generation capability, anti-tumor efficacy and osteogenic activity, has excellent biological safety, integrates anti-tumor and bone repair, and has a wide prospect in related operations.

The invention relates to the field of manufacturing of medical supplies, in particular to a platelet storage bag which comprises a bag body with the periphery fixedly connected to form a space in the center side for storing platelets, and a connecting pipe communicated with the interior of the bag body for circulation of the platelets. The bag body comprises two layers of isolating membranes which are in contact with blood platelets and only allow gas to pass through, oxygen generating layers and carbon dioxide absorbing layers which are compounded on the opposite surfaces of the two layers of isolating membranes in a one-to-one correspondence manner, calcium peroxide microcapsules are embedded in the oxygen generating layers, lithium hydroxide microcapsules are embedded in the carbon dioxide absorbing layers, and the oxygen generating layers and the carbon dioxide absorbing layers are compounded in a one-to-one correspondence manner. The oxygen generating layer can slowly release oxygen, the carbon dioxide absorbing layer can absorb carbon dioxide, oxygen filling and vacuumizing operation is not needed any more, platelets can be directly stored in the storage bag, use is convenient, and meanwhile the storage duration of the platelets can be guaranteed.

The application discloses a hydrochloric acid pickling waste liquid resource treatment process based on supergravity neutralization and ammonia closed loop, relates to the technical field of hydrochloric acid pickling waste liquid recovery treatment, and comprises the steps of purification and impurity removal, supergravity neutralization, solid-liquid separation, ammonia recovery and product preparation, etc. The supergravity reaction device is used to realize high-speed and high-efficiency neutralization of the waste liquid and ammonia gas, and through the reaction of calcium oxide and the neutralization product, i.e. ammonium chloride, ammonia gas is recovered under negative pressure and is used in the neutralization step again, forming an ammonia closed loop cycle. Meanwhile, the valuable components in the waste liquid are converted into high-purity iron red products and calcium chloride products in the whole process, and high-quality purified water is recovered. The application solves the problems of high energy consumption, low efficiency, insufficient resource recovery and secondary pollution caused by the traditional hydrochloric acid pickling waste liquid treatment method, realizes clean and efficient disposal of the waste liquid and full-amount high-value recovery of resources, and has both economic benefits and environmental benefits.

The invention belongs to the technical field of biomedical materials, and particularly relates to oxygen-enriched hydrogel for culturing vascular organs and a preparation method thereof.The preparation method comprises the steps that hyaluronic acid carboxyl and cysteine amino are covalently bound to obtain hyaluronic acid-cysteine conjugate HA-C, methacrylic anhydride and hydroxyl of an acellular matrix are subjected to an esterification reaction, and the hydrogel is obtained; the preparation method comprises the following steps: grafting methylacryloyl onto ECM (extracellular matrix) to obtain methylacryloyl modified acellular matrix ECM-MA; hA-C and ECM-MA are mixed and dissolved in a water phase, and a photoinitiator and PVP-coated calcium peroxide are added for cross-linking to form the oxygen-enriched hydrogel. The hydrogel is constructed by utilizing the sulfhydrylated hyaluronic acid and the double-bond functionalized acellular matrix by utilizing a click chemical reaction, and meanwhile, the calcium peroxide is added, so that the material has the function of releasing oxygen; the obtained hydrogel has biocompatibility, controllability and biological activity, and provides a high-performance material basis for biomedical application.