61results about How to "Good oxygen" patented technology

The invention relates to a deodorant nitrogen-conserving conditioner. The using method comprises the following steps: evenly mixing pig manure and crushed straw or other crop straw in a ratio of 2-8:1, wherein the moisture content is between 60 and 65 percent; carrying out simple high-temperature composting by adding 25 to 40kg deodorant nitrogen-conserving conditioner in each 1,000kg compost rawmaterial; and adopting a pile-turning or a forced ventilation mode, wherein the temperature is not more than 70 DEG C during high-temperature composting. The deodorant nitrogen-conserving conditionercomprises 15 to 20kg calcium chloride, 10 to 15kg calcium superphosphate and 3 to 8kg zeolite. The compost becomes thoroughly decomposed after 30-day composting. The deodorant nitrogen-conserving conditioner is characterized in that: the conditioner can reduce odorous substances in the pig manure compost and ammonia volatilization and eliminates odour more than 10 days earlier; moreover, the conditioner increases the content of nitrogen nutrients in a compost product by over 20 percent and reduces nitrogen loss by over 70 percent in the composting process; and at the same time, the conditioner has the advantage of simple and easy operation and is suitable to be used in organic fertilizer factories and vast rural areas.

The invention relates to a method for reducing the abundance of tetracycline resistance genes in an organic fertilizer. The method comprises the following steps: performing pyrolysis on a bamboo at 600 DEG C to obtain biochar; then by taking wheat straws in chicken manure compost as a conditioner, uniformly mixing the air-dried chicken manure with the chopped wheat straws, and regulating the initial C/N ratio to 25:1; adding the biochar accounting for 2.5% of the mixture based on dry weight into the mixture, and adding distilled water to regulate the water content to 60%; and after the composted materials are sufficiently and uniformly mixed, performing composting in a full-automatic composting device, wherein oxygen introduction is ensured by a forced ventilation process. After 26 days of composting, tetracycline resistance genes (tetG, tetW and tetX) are reduced by 70% or above by the treatment of the added biochar, and the removal rate is obviously higher than that of the control treatment. According to the invention, the method reduces the abundance of tetracycline resistance genes in chicken manure compost; and meanwhile, the method has the advantages of short composting period, simple equipment, easy operation, low cost, high compost product stability and safety and the like.

The invention discloses an organic rice cultivation method by utilizing farmland and rice chaff weeding, belonging to the technical field of rice production. The method comprises the steps of: soaking in shallow water; ploughing for two times or three times; transplanting strong seedlings; broadcasting rice chaff; conducting later field management and other steps. In the method, drainage is required at first and then ploughing is carried out each time, which aims at carrying away sheathed monochoria herb without spouting and floating on the surface of a water level and seeds of chufa through drainage; the rice chaff fertilization faster improve the field temperature so as to create a good sprouting environment for weed seeds, and also can reduce the oxygen content under the surface layer, thus preventing the normal growth of the weed roots and achieving purpose of killing weeds, further increasing the content of organic matters, being beneficial to improvement of rice quality. The organic rice cultivation method can be popularized and applied in rice cultivation regions.

Provided are a nanocomposite composition having barrier properties and an article manufactured therefrom. The compositon is prepared by dry-blending a polyolefin resin, a melt blend of a resin having barrier properties and a nanocomposite having barrier properties, and a compatibilizer. The compositon has superior barrier properties and moldability, and thus is useful for manufacturing a sheet or film having barrier properties.

Disclosed is a PET/clay nano composite material comprising the following constituents (by weight ratio): PET 100 parts, clay 0.1-10 parts, organosilicon surface active agent 0.1-30 parts, epoxy resin 10-20 parts and dispersion medium 3-1000 parts.

The invention discloses in-situ ecological living water equipment which comprises a circulating living water device, a micro-nano aeration device and a reagent dosing device, wherein the circulating living water device sequentially comprises a top cover, a driving device and an impeller with a plurality of blades from top to bottom; the driving device is used for driving the impeller to rotate; the micro-nano aeration device is connected to the lower side of the circulating living water device and sequentially comprises a flow divider, at least one dissolved air tank and a double entry pump from top to bottom; the reagent dosing device is arranged at the top of the driving device of the circulating living water device; a drug inlet is formed in the tail end of a second water inlet of the double entry pump; the drug inlet is connected with the reagent dosing device; and reagents in the reagent dosing device enter the micro-nano aeration device via the drug inlet under the action of a negative pressure produced by the double entry pump. According to the device disclosed by the invention, vertical circulating convection of a water body can be rapidly realized, uniform high-density micro-nano bubbles are generated to promote oxygen dissolving, and water treatment reagents are uniformly dispersed in the water, so that water body pollution is treated.

The invention provides an oxygen mixing and uniform distribution device. The oxygen mixing and uniform distribution device comprises a main pipeline, an oxygen outer ring pipe annularly arranged outside the main pipeline at intervals, and a plurality of oxygen distribution branch pipes uniformly distributed at intervals along the periphery of the main pipeline, one end of each oxygen distributionbranch pipe is communicated with the oxygen outer ring pipe, and the other end of each oxygen distribution branch pipe is communicated with the main pipeline and is positioned in a longitudinal projection plane perpendicular to an axis of the main pipeline; and a connecting line of the center of one end of each oxygen distribution branch pipe and the center of the main pipeline forms a reference line, and an included angle between the axis of each oxygen distribution branch pipe and the corresponding reference line serves as an acute angle. The oxygen mixing and uniform distribution device hasthe beneficial effects that the arrangement structure is adopted by the multiple oxygen distribution branch pipes, so that airflow rotational flow of oxygen streams in the circumferential direction of the main pipeline can be realized, a better oxygen and air mixing effect is achieved, and the length of the pipeline required by air and oxygen mixing is shortened.

The invention provides macroporous hydrogel and a preparation method and application thereof. The preparation method comprises the steps that: water-soluble gelatin microspheres are adopted as a pore-foaming agent, gelatin microsphere interfaces are bonded with one another in a heating mode, a gelatin microsphere template is removed after crosslinking and gelling, and finally the macroporous hydrogel with controllable pore diameter and mutual communication is formed. Adhesion, migration and proliferation of cells and transportation of oxygen, nutrient substances and the like are facilitated, avascularization promoting gel stent is expected to be further developed, and application of the hydrogel in tissue engineering and regenerative medicine is expanded. Compared with macroporous hydrogel prepared by traditional methods, the macroporous hydrogel prepared by the method has the advantages that the gelation time is short, the gelation can be completed within a few seconds, the pore structure is controllable, uniform and mutually communicated, and the pore diameter range is 30-600 microns.

The invention discloses a whey protein edible single/double-layered compound film and a preparation method thereof, which belong to the field of food package materials. The single-layered compound film is made of whey protein solution and casein phosphopeptide solution which are added with plasticizer and blended, wherein the weight ratio between casein phosphopeptide and whey protein is 1 percent to 8 percent. The first layer of the double-layered compound film is the whey protein edible single-layered compound film; the second layer covers the first layer, and the material is the casein phosphopeptide solution with the weight percentage concentration of 20 percent. Since the compound film contains casein phosphopeptide, the bioavailability of calcium in the whey protein edible film, and the additive amount of calcium ions in the double-layered compound film is increased from 1 percent (Ca/WPI, w/w), as in the calcium-enriched whey film, to 28.34 percent (Ca/WPI, w/w).

The invention relates to a catalytic cracking catalyst regeneration method and a catalytic cracking catalyst regeneration device. The method comprises the following steps: (1) a spent catalyst is introduced into a first regenerator, such that the spent catalyst contacts a first oxygen-containing gas in the first regenerator; and coke-burning regeneration is carried out, such that semi-regenerated catalyst is obtained; and (2) the semi-regenerated catalyst is introduced into a second regenerator, such that the semi-regenerated catalyst contacts a second oxygen-containing gas in a catalyst dense phase zone in the second regenerator; and coke-burning regeneration is continued; gas produced after coke burning contacts methanol, and combustion is continued. The device comprises the first regenerator and the second regenerator. The first regenerator and the second regenerator have dense phase zones and dilute phase zones. The dense phase zone of the first regenerator communicates with the dense phase zone of the second regenerator through a conduit. A methanol distributor is arranged in the second regenerator. With the method provided by the invention, catalyst dilute phase bed layer temperature of the regenerators can be substantially reduced, such that regenerator stable operation can be realized, and catalytic cracking process production distribution can be improved.

The invention relates to a catalytic cracking catalyst regeneration method and a catalytic cracking catalyst regeneration device. The method comprises the following steps: (1) a spent catalyst contacts a first oxygen-containing gas, and coke burning is carried out; (2) a mixture obtained after coke burning contacts methanol, and combustion is carried out; and (3) the mixture obtained after combustion contacts a second oxygen-containing gas, and coke-burning regeneration is continued. The regeneration device comprises a coke burning tank and a regenerator. The inner space of the regenerator is divided into a catalyst dense phase zone positioned in the lower part and a catalyst dilute phase zone positioned in the upper part. The top of the coke burning tank is communicated with the catalyst dilute phase zone of the regenerator through a delivery pipe, such that the mixture obtained through the coke burning process in the coke burning tank can be delivered to the regenerator. A methanol distributor is arranged in the delivery pipe, and is used for introducing methanol into the delivery pipe. With the method provided by the invention, regeneration device local overheating and over-temperature phenomena caused by dilute phase tail burning can be avoided, such that regeneration device stable operation can be realized.

The invention provides a transparent oxygen-blocking water-blocking film and a preparation method thereof. According to the transparent oxygen-blocking water-blocking film provided by the invention, through modifying hydrotalcite nanosheets by using Tween 80, hydrophilic groups of the Tween 80 are adsorbed to surfaces of the hydrotalcite nanosheets, and hydrophobic groups are located outside the hydrotalcite nanosheets, so that the hydrotalcite nanosheets have hydrophobicity, and the water-blocking performance of the film is improved; by the hydrophobic-modified hydrotalcite nanosheets with a high length-diameter ratio and an orderly-oriented structure parallel to height of a film substrate, a path by that oxygen and vapor permeate the film can be prolonged, and thus, the action of blocking the oxygen and the vapor is achieved; in addition, hydrophobic modified hydrotalcite nanosheet layers and hydrophobic polymer layers are laminated alternately, so that the stability of the organic-inorganic composite film is guaranteed.

The invention provides a block copolyester with a structure as shown in a formula (I) which is described in the specification. According to the invention, a novel poly(ethylene terephthalate furandicarboxylate) block copolyester is prepared by adding poly(furandicarboxylic acid) into polyethylene terephthalate through a transesterification reaction; compared with pure polyethylene terephthalate, the copolyester has excellent oxygen and carbon dioxide barrier properties, and solves the defects of short food shelf life and needing of a large number of preservatives due to poor barrier propertiesto gases like oxygen, or the defect of incapable recovery due to needing of a plurality of layers of composite films to improve the barrier properties to gases like the oxygen for a traditional polyethylene terephthalate polyester food packaging film. Experimental results show that the block copolyester provided by the invention has oxygen barrier properties increased by 20% to 400% compared withPET, and carbon dioxide barrier properties increased by 20% to 520% compared with the PET. The polyester barrier film and the barrier bottle prepared from the block copolyester provided by the invention can be used in the fields of food packaging, drug packaging, automobile, electronics, etc.

The invention relates to the technical field of fresh-keeping of vegetables, and concretely relates to a fresh-keeping method for Chrysanthemum coronarium. The method comprises the following steps: (1) sterilization; (2) coating of an orange essential oil/capsicum essential oil/tulip essential oil complex agent; (3) high static pressure treatment; (4) coating of a porous membrane; (5) coating of salicylates; (6) preservation at a normal temperature. After treatment, respiration intensity of Chrysanthemum coronarium is obviously inhibited during storage period, decrease of mineral matters, VC,chlorophyll and other nutrients in the later period of storage are substantially delayed, and accumulation of ethene content during the storage period is substantially inhibited; weight loss due to internal respiration and surface transpiration in the storage period is reduced, peroxidase and other activities are reduced at the same time, aging process of Chrysanthemum coronarium is effectively reduced, original freshness and color of leaf vegetables are better kept, and eating flavor is better.

The invention relates to an infant sleep monitoring method and infant sleep monitoring equipment. The infant sleep monitoring method comprises: monitoring a local ambient oxygen concentration; and releasing oxygen until the local ambient oxygen concentration achieves a preset good oxygen concentration when the local ambient oxygen concentration is lower than a preset minimum oxygen concentration.With the infant sleep monitoring method of the present invention, the local ambient oxygen concentration is monitored, and the oxygen is released until the local ambient oxygen concentration achievesthe preset good oxygen concentration when the local ambient oxygen concentration is lower than the preset minimum oxygen concentration, such that the oxygen in the air can be improved when the oxygenconcentration in the air is low, and the air problem caused by the elderly sleeping with the infant, the air problem in the air-conditioned room and the air problem caused by the elderly sleeping withthe infant in the air-conditioned room can be solved so as to easily achieve the health of infants.

The invention provides a heat sealing PVDC emulsion having an antifogging function. The heat sealing PVDC emulsion having the antifogging function is prepared from the following raw materials: by weight, 88-97% of PVDC copolymer emulsion, 0.2-3% of a dispersant and 2-10% of antifogging agents. The PVDC copolymer emulsion is prepared by copolymerization of 35-45% of vinylidene chloride, 1-5% of an monomer of acrylates, 0.1-3% functional monomers, 0.005-0.05% of an oxidation type initiator, 0.005-0.05% of a reduction type initiator, 0.2-4% of an emulsifier, 0.01-0.1% of electrolytes, 0.05-2% of a pH regulator, 0.02-0.1% of a defoaming agent and 42-55% of deionized water. The invention also provides a preparation method of the heat sealing PVDC emulsion having the antifogging function. The preparation method has the advantages of simple processes and easy control, and the prepared emulsion has stable performances.

The embodiment of the application shows a family gardening cultivation system and an application method thereof. The system comprises a cultivation platform, an irrigation device, an oxygen supply device and an illumination device, wherein the irrigation device comprises a water reservoir, an irrigation main pipe, an irrigation branch pipe and a humidity sensor; the oxygen supply device comprisesan air pump, an oxygen supply main pipe, an oxygen supply branch pipe and an oxygen sensor; the illumination device comprises an isolation transverse plate, an isolation vertical plate and a sunlightsensor; a microprocessor receives the soil humidity measured by the humidity sensor and judges whether the water pump is started to supply water or not, receives the oxygen content of the soil measured by the oxygen sensor and judges whether the air pump needs to be started to supply oxygen or not, receives the light quantity measured by the sunlight sensor and judges the optimal angle of the isolation transverse plate and the isolation vertical plate to control the light quantity received by a potted plant in real time, so that the growth condition of the potted plant is monitored systematically, and the optimal water, oxygen and light growth conditions are provided for the potted plant through the cultivation system.

A nanocomposite composition having a barrier property is provided. The compositon is prepared by dry-blending a styrene-based resin, a resin having a barrier property/intercalated clay nanocomposite, and a compatibilizer. The compositon has superior mechanical strength and moldability, and superior oxygen, organic solvent, and moisture barrier properties, and thus can be used to manufacture various articles having a barrier property.

The invention discloses a method and a system for confirming optimum oxygen content of a coal-fired boiler. The method comprises the following steps of establishing a function expression formula of boiler efficiency relative to oxygen content; and calculating to-be-solved coefficients in the function expression formula through test determination data to obtain the optimum oxygen content. The specific value of the optimum oxygen content of the boiler which operates in a full-load stage can be positioned precisely, and the operating economical benefit of a unit is improved.