1311results about How to "Efficient enrichment" patented technology

The invention belongs to the technology field of grain processing, specifically a method for producing active germinated brown rice and products thereof. The method comprises the following steps: screening brown rice raw material to remove impurity, washing, sterilizing, soaking in a nutrient fluid supplemented with calcium lactate, gibberellin, phytase, cellulase and vitamin C for 10-36 hours at 10-40 DEG C, draining, incubating for 10-36 hours at 10-40 DEG C under relative humidity of 50-90% to allow germination, drying with hot air of 40-55 DEG C for 0.5-3 hours until the sprout grows about 0.5-1.2 mm in height, drying with 2-10 w/g microwave for 2-10 minutes until the water content of germinated brown rice is below 15%. Compared with the prior art, the germinated brown rice is nutritious, retains almost all nutrients of brown rice and has high nutritional value.

The invention relates to a photochemical colorimetric sensor array, and concretely relates to a method for detecting various heavy metal ions with the photochemical colorimetric sensor array. The method comprises the following steps: 1, fixing several heavy metal ion indicators on a porous sensitive film to form an array; 2, carrying out multichannel analysis by means of a plurality of single channel flow cell systems which are mutually independent with each other; and 3, rapidly determining whether contents of various trace heavy metal ions of Hg, Pb, Cd, Ag, As, Ni, Cu, Zn and the like in water exceed sewage discharge standards prescribed by national standards within 10min. According to the sensor array, a color imaging device acquires changes of colors before and after the exposure of the indicators in various different heavy metal ions and constructs RGB (red, green, blue) spectrum values corresponding with the color changes into the "fingerprint" of each heavy metal ions. In the sample test process, mathematical statistic methods of cluster analysis, main component analysis and the like are adopted to contrast the fingerprint of the sample with a "fingerprint" database, so unknown heavy metal ions can be qualitatively or semi-quantitatively analyzed.

The invention discloses an extraction and separation method of cannabidiol. According to the method disclosed by the invention, the water solubility of the cannabidiol is enhanced through adopting analkaline solution and the cannabidiol is extracted and enriched by utilizing an organic solvent; then the cannabidiol is purified and enriched through a polyamide resin column, neutral aluminum oxideand a bonded silica gel column; then the cannabidiol is crystallized to obtain high-purity cannabidiol. The method disclosed by the invention is easy to operate, strong in practicability and suitablefor industrial popularization and application.

The invention relates to a carbon fiber wetland type ecological floating bed and an arrangement method thereof, belonging to the field of sewage treatment. The carbon fiber wetland type ecological floating bed comprises a bed body, a biological carbon fiber material, floating bed plants and a wetland tank, wherein the wetland tank is arranged in the bed body; the interior of the wetland tank is filled with a porous light-weight artificial wetland filler; the floating bed plants are planted in the middle of the filler; and the biological carbon fiber material is hung on a suspension rod at the bottom of the wetland tank. According to the carbon fiber wetland type ecological floating bed, the processes of the ecological floating bed, bio-contact oxidation and the artificial wetland are reasonably combined to ensure that sewage is firstly subjected to bio-contact oxidation to degrade most pollutants, then the sewage is intercepted and further degraded through the wetland structure, and finally, through the absorption effect of plant roots, the quality of the sewage is better improve; and meanwhile, the reasonable layout of plants can be used for achieving the purposes of beautifying the environment, improving the ecological diversity and promoting the degradation effect on the pollutants of the whole floating bed system.

The invention discloses a method for detecting multiple trace heavy metal ions through a colorimetric sensor array. The method comprises the steps of drawing specific hydrophilic channels on quantitative filter paper through a wax spray type printer, respectively fixing several heavy metal ion indicators in the respective hydrophilic channels to form an indicator array, and connecting a water absorption unit fixed with a macromolecular water absorption material to the rear end of each channel, wherein a heavy metal ion solution generates reaction with the indicators through the hydrophilic channels; furthermore, under the water absorption action of the macromolecular materials at the rear ends, the heavy metal ion solution can continuously flow through the indicators and generate enrichment reaction, so that the aim of half-quantitative measurement on contents of eight trace heavy metal ions in water can be achieved. Color imaging equipment is used for collecting color changes of the indicators in front of and behind different heavy metal ions and constructing a fingerprint of each heavy metal ion. In a test process, a mathematical statistics method is adopted; a sample atlas is compared with the fingerprints, so that unknown heavy metal ions can be qualitatively and half-quantitatively analyzed.

The invention provides an enrichment and analysis method for circulating tumor cells. The method mainly comprises the following steps: subjecting a biological fluid sample to red blood cell lysis treatment; adding immune beads specifically bonding with white cells, red cells and/or platelets for incubation; and filtering cell suspension by using a filter membrane and enriching circulating tumor cells. According to the invention, through integration and optimization of CTCs enrichment methods such as red blood cell lysis treatment, an immune bead method and membrane filtration, the enrichment effect of the circulating tumor cells is greatly improved; with the method, the removal rate of leukocytes is greater than 99.9%, and the enrichment rate of tumor cells is greater than 80%. Meanwhile, the invention also provides a kit using the enrichment method for the circulating tumor cells and discloses a device for enrichment of the circulating tumor cells. The invention also provides an analysis method for the enriched circulating tumor cells. With the analysis method, analysis of dynamic changes like the amount of tumor cells, gene mutation and gene expression profiles can be realized.

The invention discloses a magnetic Co ₃ o ₄ The ‑C nanometer material and its preparation method and the application of activated persulfate as a catalyst in wastewater treatment belong to the technical field of water pollution control. In this method, cobalt metal-organic framework compounds are used as precursors, which are calcined at high temperature in a certain atmosphere, and finally magnetic Co ₃ o ₄ ‑C nanomaterials. The porous carbon component in this material not only acts as a carrier of metal oxides to evenly distribute the catalytic sites, but also effectively enriches pollutants in water to improve the degradation efficiency of the system; the magnetic Co in this material ₃ o ₄ The components can be used as heterogeneous catalysts to efficiently activate monopersulfate to generate free radicals to degrade pollutants in water bodies. The method has the characteristics of high efficiency and convenience, wide application range of pH, catalyst recovery by external magnetic field, good recyclability, and environmental friendliness, and has great potential in the actual treatment and application of organic wastewater.

The invention relates to a formula and a corresponding preparation technology of a normal temperature formaldehyde removal catalysis material, and belongs to the technical fields of normal temperature adsorption catalysis and air pollution treatment. The catalysis material is prepared by adopting a one-step co-precipitation process or a step-by-step dipping process to load active components with granular, cylindrical, spherical or honeycomb high-specific surface area shell activated carbon as a carrier, one or more non-noble metal salts as main active components, such as nitrate, sulfate or chloride of manganese, iron, cobalt, nickel, copper, zinc, lanthanum or cerium, one or more alkali metal/ alkaline earth metal salts as an inorganic additive, such as oxalate, nitrate, sulfate, acetate, carbonate and bicarbonate of sodium, potassium, magnesium, calcium, and ethylenediamine tetracetic acid/ethylenediamine tetraacetic acid salt, basic amino acid, polyamide monomer and polyurethane monomer as a nitrogen-containing organic additive. The normal temperature formaldehyde removal catalysis material has the characteristics of rapid capture, high efficiency catalytic oxidation and long working cycle, and can meet requirements of long-time effective removal of formaldehyde in indoor real environment.

The invention provides a preparation method for a molecular imprinting material and the molecular imprinting material prepared through the preparation method. The preparation method comprises the steps that silicon oxide is coated on the surfaces of magnetic ferroferric oxide nanometer particles, the magnetic ferroferric oxide nanometer particles are modified with gamma-(methacryloyl chloride) amino propyl trimethoxy silane to obtain magnetic ferroferric oxide nanometer particles with propenyl on the surfaces, the magnetic ferroferric oxide nanometer particles with the propenyl on the surfaces serve as carriers, estrogen receptors are simulated, functional monomers are optimized, a surface imprinting technology is adopted, and then the molecular imprinting material which can simultaneously identify seven kinds of environmental endocrine disrupting chemicals is prepared. According to the preparation method, the easy separation of a magnetic nanometer material, the good water solubility of a silicon oxide nanometer material, the specific recognition ability of molecular imprinting polymers and the surface imprinting technology are mutually combined, the preparation technology is simple, the conditions are mild, the prepared molecular imprinting material is large in adsorption capacity, fast to respond, high in magnetism, good in chemical stability and high in repeating utilization rate, and the problems that at present, multiple trace, steroid and phenol environmental endocrine disrupting chemicals are difficult to simultaneously identify, separate and enrich are solved.

The invention relates to a soil conditioner capable of being used for soil acidification conditioning and cadmium pollution repair. The soil conditioner comprises the following main components in percentage by mass: 40-60% of quicklime, 10-20% of a silicon calcium fertilizer, 10-30% of biological black carbon and 10-30% of a silicon mineral material and further comprises 1-3% of zinc sulfate and less than 10% of water, wherein the pH value is controlled at 10-12. The preparation method comprises the following steps: firstly, pre-mixing zinc sulfate with biological black carbon to obtain a premix; then, mixing quicklime, silicon calcium fertilizer, and silicon mineral material and activating the silicon mineral; and finally, mixing, granulating and drying the mixed material with activated silicon and the premixed together to obtain a finished product. The soil conditioner provided by the invention is low in cost and simple in formula, can be used for improving the pH value of soil and can be further used for soil acidification conditioning and cadmium pollution repair.

The invention relates to a method for leaching solid arsenic out of arsenic sulfide slag through one step and enriching valuable metal. The arsenic sulfide slag serves as a raw material, iron-containing materials are added in the arsenic sulfide slag, and an acid water solution is inflated with air or oxygen for oxidizing leaching; in the leaching process, the temperature is controlled to range from 60 DEG C to 250 DEG C, and the pH value ranges from 0 to 5; the arsenic sulfide in the arsenic sulfide slag is leached out through one step and converted into solid arsenic mineral scorodite, and the valuable metal is enriched in a leaching agent. The method is simple in technology and low in cost. The toxicity of the obtained scorodite meets the regulation of GB5085.3-2007 (solid waste identification standard-leaching toxicity identification), safe and stable stockpiling can be achieved, and meanwhile the enriched valuable metal can be efficiently recycled through the later simple processing.

The invention belongs to the technical field of environmental protection, and particularly relates to a multiple combined repairing system and a multiple combined repairing method for arsenious organism in the soil. The repairing system consists of a microwave repairing system, a chemical oxidation system and a plant repairing system; the microwave repairing system is used for heating the to-be-repaired soil, collecting gas generated by volatile organisms and injecting oxidant into the soil so as to enable the arsenious organism to have oxidation reaction under the microwave catalysis, the trivalent arsenic is oxidized into pentavalent arsenic, then the pentavalent arsenic is enriched by planting hyperaccumulator, pteris vittata, and the microwave repairing system and the plant repairing system are alternately operated. The microwave repairing method is combined with the chemical oxidation method to intermittently and alternately repair the soil in combination with plant repair, so that the arsenious organism in the soil can be effectively and further treated.

The invention belongs to the field of biochemistry analysis technology, and specifically relates to a one-step concentration and demineralization purification treatment method of biological samples by the use of patterning surface. The patterning surface can be widely applied in pretreatment and detection of biological samples. The method comprises the following steps of: constructing sealing patterning surface of hydrophobic-hydrophilic-hydrophobic region on substrate; dropping a polypeptide or protein solution onto the patterning surface prepared by the above step, naturally drying at room temperature to obtain dried sample points; dropping a substrate solution onto the above dried sample points, and naturally drying at room temperature and forming uniform cocrystallization of the sample and substrates on the patterning surface, so as to realize the concentration and demineralization purification treatment of biological samples. By the use of the patterning surface constructed in the invention, in MALDI-TOF MS detection, signal noise ratio, sensitivity and salt tolerance are significantly improved. The method has a great practical application value.

The present invention relates to oat deeply processing technology, and is especially technological process of producing oat dietary fiber and nutritious powder with oat bran. The technological process includes microwave enzyme deactivation of oat bran, enzymolysis, centrifugal separation, drying the precipitate and superfine crushing to obtain oat dietary fiber powder, vacuum concentrating the separated supernatant and spray drying to obtain nutritious powder. The present invention extracts the nutritious matters from oat bran effectively, the product has high purity and the production process is environment friendly.

The invention relates to a method for extracting and separating a lithium isotope aqueous solution and belongs to the technical field of solvent extraction. In the method, hydrophobic naphthisoazine and hydrophilic ionic liquid respectively serve as an extracting agent and a synergist; and naphthisoazine, the ionic liquid and lithium ions form a stable ion associated matter under an alkaline condition, lithium ions enter into an organic phase through aqueous phase extraction and an obvious isotope separation effect is generated. The method comprises the following steps of: regulating the alkalinity of a lithium hydroxide solution, respectively adding the extracting agent, the synergist and the hydrophilic ionic liquid serving as an extracting medium, oscillating at normal pressure and normal temperature, standing still for layering, collecting the organic phase, and adding sodium sulfate into the organic phase to carry out lithium salt back extraction so that the lithium ions come back to the aqueous phase, thereby realizing the selective extraction and high-efficiency enrichment of lithium isotopes.

The invention provides a device and a method for treatment of low-temperature and low-carbon ammonia nitrogen wastewater on the basis of solid-phase denitrification and heterotrophic nitrification-aerobic denitrification. The device comprises a reactor and a reflux system, wherein the upper part and lower part of the reactor are respectively provided with a fluidized bed aerobic zone and a filterpool anoxic zone which are filled with a solid carbon source filling material and separated by a porous water distribution plate; an aeration tube is arranged on the water distribution plate and connected with an aeration device through a gas flowmeter; the lower end of the reactor is provided with a water inlet; the upper end of the reactor is provided with a water outlet; an effluent of the reactor enters a secondary sedimentation tank, and an effluent of the secondary sedimentation tank enters an intermediate water storage tank through an overflowing opening; the upstream end of the refluxsystem communicates with an effluent of the intermediate water storage tank; the downstream end of the reflux system communicates with the reflux opening of the lower end of the reactor through a liquid flowmeter; and the interior of the fluidized bed aerobic zone is provided with a dissolved oxygen monitor and a nitrate concentration monitor. The device and the method provided by the invention can still realize highly-efficient removal of ammonia nitrogen and total nitrogen under the conditions of low temperature and low carbon.

The invention relates to a vanadium titano-magnetite flotation method, belonging to ore flotation method technology field. The method comprises: magnetic separation for vanadium titano-magnetite to obtain the magnetic separation ferrotitanium ore concentrate and flotation of the magnetic separation ferrotitanium ore concentrate, adding the steps of dephosphorization and desulfurization before the flotation of the magnetic separation ferrotitanium ore concentrate. The flotation agents for bulk flotation are: xanthate, 2# oil and oleic acid. The ratio of the flotation agents by weight is: magnetic separation ferrotitanium ore concentrate: xanthate: 2# oil: oleic acid is 1000:0.8-1.1:1.7-2.1:1.7-2.1. When the flotation method is applied to the vanadium titano-magnetite flotation, the content of the obtained titanium ore concentrate TiO2 is more than 47%, S is less or equal to 0.18%, P is less than or equal to 0.03% and the titanium recovery rate in the titanium ore concentrate is 44-50%.

The invention discloses a beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores. The beneficiation method comprises the following steps: (1) crushing: adopting a crusher to crush and screen raw ores, returning the raw ores with a particle size of (+)3mm to crush until the particle size of all raw cores reaches (-)3mm level; (2) carrying out ore grinding: adding the crushed raw ores with the particle size of (-)3mm into raw ore grinding equipment to carry out closed-hoop ore grinding operation, adding an activator with concentration being 1000-3000g/t and a vulcanizing agent with concentration being 250-900g/t into a grinder for grinding the raw cores until raw cores with the particle size of (-)0.075mm account for 55-80%; (3) carrying out primary flotation operation; (4) carrying out flotation scavenging operation; (5) carrying out flotation concentration operation; and (6) carrying out strong magnetic separation operation. The beneficiation method can be adopted to carry out beneficiation enrichment and recovery on copper oxide minerals and molybdenum oxide minerals in the high-oxidation-rate copper-molybdenum paragenic ores so as to obtain high-quality qualified copper concentrate and relatively enriched molybdenum middlings which can be used as raw materials for producing an ammonium molybdate product by chemical wet-process leaching, so that molybdenum oxide resources in the ores are recycled.

The invention relates to a hydroxysaffloryellow A extracted from Chinese medicinal material safflower, a relative preparation method and application thereof. The inventive extraction method of hydroxysaffloryellow A is stuffed into chromatography column according to different diameter-height ratios, the invention uses the upper sample to process column chromatography according to different ratios between upper sample volumes and bed volumes, to separate and purify safflower extract. The invention has simple process, few steps, low cost, high yield, no environment pollution and suitability for industrialized and large-scale production. The yield of extracted hydroxysaffloryellow A is higher than 50%, while the hydroxysaffloryellow A content tested by high-effect liquid hydroxysaffloryellow A reaches 99.5%. The drug prepared from the hydroxysaffloryellow A can effectively prevent and treat cerebrovascular diseases as cerebral infraction and hypertensive cerebral hemorrhage or the like.

The invention discloses a herba portulacae extract and a preparation method thereof. The preparation method comprises the following steps of: 1, carrying out extraction and enzymolysis on fresh herba portulacae and/or dried herba portulacae with water and hydrolysis enzyme; 2, carrying out ethanol extraction on a feed solution obtained in the step 1, carrying out solid and liquid separation to obtain an extraction solution A and filter residue; 3, carrying out ethanol extraction on the filter residue obtained in the step 2, carrying out solid and liquid separation to obtain an extraction solution B and filter residue; 4, extracting the filter residue obtained the step 3 by using water, carrying out solid and liquid separation to obtain an extraction solution C; and 5, mixing the extraction solutions A, B and C obtained the step 2, 3 and 4, removing ethanol, concentrating, standing, and filtering to obtain filtrate to obtain the herba portulacae extract. The invention also discloses the herba portulacae extract solution and the preparation method thereof. A herba portulacae extract or extract solution can be used as an anti-stimulation and antianaphylaxis function component to be applied to cosmetics. The preparation method disclosed by the invention can be used for preparing the herba portulacae extract with higher effective component content, with high yield.

The invention discloses a high-nicotine tobacco extract and application thereof, and belongs to the field of tobacco additives. The extract is rich in aroma components such as megastigmatrienone, damascone, pyrones and furanones in tobacco, can provide tobacco aroma and roasting aroma, further contains certain nicotine, can cater for physiological needs of consumers, and improves satisfaction. Content of macromolecular substances such as proteins, pectin and polysaccharides in the extract is extremely low, solubleness is good, the high-nicotine tobacco extract can be completely dissolved into MCT (medium chain triglyceride), and can be used for perfuming a filter tip. Besides, the high-nicotine tobacco extract is added into cut stems or reconstituted tobaccos, so that stimulus can be reduced, strength is improved, a blending rate, in a tobacco group, of the cut stems or reconstituted tobaccos is increased, and content of cigarette tar is reduced while fragrance is invigorated and impurities are covered.

The invention relates to a biology processing apparatus capable of processing sewage at low-temperature with low carbon-nitrogen-ratio in a cold region and a method for processing sewage at low-temperature with low carbon-nitrogen-ratio in the cold region, which relates to the biology processing apparatus for processing sewage and the method for processing sewage. According to the invention, problems that the ratio of carbon source and nitrogen source of sewage in winner at the cold region is low, the synchronization nitrogen and phosphorus removal efficiency in the current sewage processing technology is low, the index of nitrogen and phosphor in a processed effluent can not reach the standard can be solved. The apparatus comprises a water storage tank, a pre-conditioning hypoxia pool, an anaerobic pond, an anoxic pool, an aerobic tank, a sedimentation basin, an aeration head, a filling material, a stirrer, a water inlet pump, a reflux pump, a valve, an outlet pipe, a sludge discharge pipe and a residual sludge discharge pipe; The method comprises the following steps: 1)culturing microbe on a filling material; 2)adjusting operation parameter; 3)adjusting reflux ratio parameter; 4)passing the sewage through the pre-conditioning hypoxia pool, the anaerobic pond, the anoxic pool, the aerobic tank and the sedimentation basin for processing to obtain the processed water. The apparatus and the method can be used for construction and reconstruction of the sewage processing technology at low-temperature with low carbon-nitrogen-ratio in a north region.