47results about How to "Effective content" patented technology

The invention provides a disposal method for ABS sewage and adopts a comprehensive method that is the combination of physicochemical treatment and biochemical treatment. The sewage runs through a fine grid and enters a regulating pool. Air is pumped in the regulating pool to unify the water. Separation process of flocculation and sedimentation is adopted twice, which can effectively remove SS content in the ABS sewage and improve the biodegradability of the ABS sewage. The disposal method has the advantages of small investment, effective sewage disposal and better economic and social benefits.

The invention discloses application of pilea cadierei in treating livestock and poultry breeding wastewater, belonging to wastewater treatment filed. In the invention, the characteristics that of pilea cadierei has cold resistance, does not fall leaves or wither in winter and can absorb and remove ammonia nitrogen, total nitrogen and other pollutants in livestock and poultry breeding wastewater is utilized, and the pilea cadierei is directly transplanted or inserted by cuttage in the environment of livestock and poultry breeding wastewater to absorb the pollutants of accumulated wastewater so as to purify the livestock and poultry breeding wastewater. The invention solves the problem that most of plants for purifying wastewater have poor purification effects in winter currently and also provides new types of plant resources for the treatment of livestock and poultry breeding wastewater pollution, brings new improvement and development space for the treatment of livestock and poultry breeding wastewater pollution by artificial wetland plants, and achieves obvious advantages in operation cost, operation maintenance, treatment effect, as well as brought economical benefits in landscape, environmental protection and medical application, compared with traditional plants for purifying wastewater.

The invention discloses a preparation method of a natural reed stalk adsorption material. The preparation method comprises the following steps: selecting natural reed stalks, cleaning, pounding, drying, grinding, sieving, and then sequentially performing HNO3 and NaOH refluxing, water washing and drying to obtain reed stalk cellulose; and then performing reaction crosslinking on an NaOH solution and epoxy chloropropane, mixing crosslinked cellulose with 3-chlorine-2-hydroxypropyl sodium sulfonate, a dioxane aqueous solution and an Na2CO3 solution, reacting by controlling the temperature to be 50-60 DEG C, finally sequentially performing cross washing on a product by using acetone and water, and performing vacuum drying after completely cleaning the product to obtain a reed stalk adsorption material finished product. A preparation process disclosed by the invention is short in time consuming and cheap in raw material, is pollution-free, and has wide application prospects.

The invention discloses the use of A.cucullata in the treatment of waste water from livestock and poultry cultivation, which belongs to the field of waste water treatment and adopts a technical scheme of planting A.cucullata in an environment polluted by the waste water from the livestock and poultry cultivation. In the invention, based on the cold resistance and waste water pollutant absorption performance of the A.cucullata, the A.cucullata is planted in the environment polluted by the waste water from the livestock and poultry cultivation to absorb the pollutants accumulated in the waste water; and therefore, the pollutant content of the waste water is lowered, the waste water from the livestock and poultry cultivation is purified, secondary pollution to the water is effectively prevented, a new plant resource variety is developed for treating pollution caused by the waste water from the livestock and poultry cultivation while the water purification effect is ensured, a new progress and development space are made for the further development of the artificial wet land plant treatment of the pollution caused by waste water from livestock and poultry cultivation. Thus, compared the traditional waste water purifying plants, the A.cucullata has obvious advantages in operation cost, operation maintenance, treatment effect, landscape and medicinal economic values and other economic values.

The invention discloses a preparation method of creeping dichondra-berchemia lineata-verbena Gantai preparation, prepared from creeping dichondra, berchemia lineate, verbena, stephania root, herba patriniae, herba epimedii, milk vetch, red peony root, salviae miltiorrhizae and auxiliary materials. According to the preparation method disclosed by the invention, a preparation process is optimized according to properties of each medicine in a formula of creeping dichondra-berchemia lineata-verbena Gantai granules and the effect of the medicine in the formula; and compared with the prior art, the preparation method disclosed by the invention has the advantages that content of active ingredients of a product prepared by the preparation method disclosed by the invention is high and clinical effect is good.

The invention discloses a production method for instant edible bird's nests through multi-stage low-temperature sterilization. According to the production method, the effect that the product shelf life of instant edible bird's nests reaches 12 months or longer without adding other preservatives or antibacterial food additives is achieved through the multi-stage low-temperature sterilization technology; meanwhile, the content of sialic acid in the product is effectively maintained, the content and the maintenance rate of solids are increased, and the situation that solids disappear due to hydration of the product is avoided. By means of the method, the stewing sterilization temperature is greatly reduced to 95 DEG C from 121 DEG C, and the bacterial colony of the instant edible bird's nest product is controlled to be 100 CFU or below. The content of solids after the product is stewed and the maintenance property of solids are effectively improved, and hydration of the product is avoided. The content of the effective nourishing ingredient sialic acid in edible bird's nest raw materials is effectively maintained. The retention rate of sialic acid stewed at 121 DEG C in the existing technology is 40-45%, and the retention rate of sialic acid can be increased to about 80% through the technology of the method.

The invention provides a method for measuring the content of polyphenols in fargesia denudate. The method comprises three steps: drawing a standard curve by using gallic acid as a polyphenols standard substance, preparing a sample solution of the polyphenols in the fargesia denudate, and measuring the content of the polyphenols in a fargesia denudate sample. The method provided by the invention is low in detection limit, high in accuracy, good in repeatability and high in precision.

The invention relates to an ion exchange waste water denitrification material and a preparation method thereof. A segmented copolymer containing a polyolefin acetal chain segment and a polyolefin sodium carboxylate chain segment is prepared from polyolefin alcohol and polyolefin sodium carboxylate which have low polymerization degree, as well as aldehydes, kieselguhr, kaolin, imvite and the like under the action of an initiator. The copolymer has sodium carboxylate groups, can be used as cation exchange resin, and performs the exchange with NH4<+> in waste water;and the roughness of the material can be increased by adding inorganic nanometer powder soil, and the specific surface area is increased to improve the hydrophily and affiliation capacity of microbes. The preparation method comprises the following steps of: dissolving the polyolefin alcohol and the polyolefin sodium carboxylate by using NaSCN solution, adding the initiator for polymerizing, adding a terminator and inorganic nanometer powder, stirring and mixing uniformly to prepare spinning solution, coagulating the spinning solution with inorganic salt solution in coagulating bath to form nascent fibers, performing post processing processes such as drawing, heat setting, acetalation, washing, drying and the like, and weaving to form a specific shape to obtain the required product. The material has the good mechanical strength, hydrophily, microbe affinity and ion exchange performance.

The invention discloses a coenzyme II NADP+ or NADPH content testing kit and its method. The kit comprises acid extractive fluid, alkali extractive fluid, mixed solution of HEPES and EDTA, glucose 6-phosphate, PMS, MTT, glucose 6-phosphate dehydrogenase solution, NaCl solution and mixed solution of ethanol and double distilled water. The method includes steps of extracting NADP+ and NADPH in a sample by acid and alkali extracting fluids on the basis of a spectrophotometric method; performing PMS hydrogen delivering action on NADPH, and reducing MTT to be formazan; detecting light absorption value under 570 nm, and testing the NADPH content; reducing the NADP+ to be NADPH by glucose 6-phosphate dehydrogenase, thereby detecting the NADP+ content. The kit and its testing method can effectively test the content of the coenzyme II NADP+ or NADPH, and are featured by high specifity, wide application range, high stability, and others.

The invention belongs to the technical field of vanadium ore processing, and particularly relates to a method for extracting vanadium pentoxide from secondary vanadium slag. The method comprises the following steps of regulating content of vanadium in the secondary vanadium slag, grinding the secondary vanadium slag, mixing the ground secondary vanadium slag with sodium carbonate to obtain a mixture, heating the mixture through a rotary kiln, adding water into the mixture, and filtering the mixture to obtain filtrate; adding calcium chloride into the filtrate to generate precipitates, regulating the pH value, adding ammonium chloride to obtain ammonium polyvanadate; and heating the ammonium polyvanadate to dehydrate and remove ammonium, thereby obtaining the vanadium pentoxide. According to the method for extracting vanadium pentoxide from secondary vanadium slag, vanadium can be effectively extracted from the secondary vanadium slag with relative low vanadium content, so that the secondary vanadium slag is changed into things of value, and therefore, a utilization rate of natural resources is increased.

The invention discloses a preparation method of hydroxyl-calcium bentonite for treating phosphorus-containing wastewater. Low-grade bentonite is purified, the purified low-grade bentonite is modifiedwith hydrochloric acid to expose active sites on the surface of the bentonite in order to facilitate subsequent hydroxylation, a part of calcium ions and sodium ions contained in the bentonite undergocation exchange, and the high ionic strength promotes the adsorption of phosphates in water by hydroxyl calcium ions; interlayer hydroxyl groups of the hydroxy-calcium bentonite and the phosphate undergo anion exchange, and the content of a supported compound is controlled to increase the content of hydroxy calcium, so the adsorption of phosphates in the water is improved to a certain degree; andthe modified bentonite prepared in the invention can be directly or indirectly used for treating the phosphorus-containing wastewater in order to realize the effective treatment of eutrophic water and significantly reduce the content of phosphates in water, and has the characteristics of good water purification effect, fast water purification and high safety.

The invention discloses a device and method for concentrating kerogen from easily-slimed oil shale. The device comprises a crusher, a sliming device, a vibrating screen, a mixing barrel, a feeding pump, a heavy medium separating device, a light product medium removing and dewatering screen, a heavy product medium removing and dewatering screen, a magnetic separator, a qualified medium barrel, a medium supplementing barrel, a centrifugal machine and a thickener. Oil shale is crushed through the crusher and then enters the sliming device; the slimed oil shale enters the vibrating screen to be classified; materials on the screen enter the heavy medium separating device; obtained products are subjected to medium removing and dewatering, and large blocks of kerogen-rich products and large blocks of kerogen-poor products are obtained; heavy media are recycled and reused through the magnetic separator; materials under the screen and tailings of the magnetic separator are subjected to dewatering of the centrifugal machine and the thickener, and high-slime-content fine-grain kerogen tailings are obtained; and overflow of the thickener becomes circulating water, and the circulating water returns to the heavy media to be separated. The device and method are suitable for separating of easily-slimed oil shale, the washing precision and a kerogen concentration effect can be improved, the tailing water treatment link is simple, and the device and the method are easy to achieve and have high practicability.

A process for testing the quality of ganoderma product, especially the orally taken 'Shuangling Guben', features that the bovine serum albumin is used as reference to measure the content of ganoderic polyosepeptide. Its advantages are high sensitivity, repeatability and anti-interference power.

The invention discloses a method for determining total flavonoid content in a litchi seed; the method is an ultraviolet spectrophotometry and comprises the following steps: (1) preparing a reference substance solution: preparing a gradient standard solution by taking procyanidine A2 as a reference substance; (2) preparing a test solution: taking litchi seed powder, adding methanol into the litchiseed powder, carrying out reflux extraction, filtering and diluting; (3) preparing a chromogenic reaction solution: uniformly mixing n-butyl alcohol, concentrated hydrochloric acid and an ammonium ferric sulfate solution according to a ratio; (4) drawing a standard curve: adding a color developing reaction solution into the reference substance solution, mixing, measuring the absorbance value, anddrawing a standard curve of absorbance value-procyanidine concentration; and (5) determining the test solution: taking the test solution, measuring the absorbance value of the test solution, and substituting into a regression equation to obtain the total flavonoid content in the litchi seed. The method in the invention is simple and rapid, the degree of precision, the reproducibility, the accuracyand the stability are good, batch measurement can be carried out, and the requirements for industrial production detection can be met.

The invention relates to a method for analyzing and detecting a Prasugrel intermediate. The method is used for quality control of 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7,7A-tetrahydrothieno[3,2-C]pyridine-2(4H)-one. The method realizes reversed phase high-performance liquid chromatography-based analysis and detection under the conditions of a chromatographic column (C18, 4.6*150mm, 5 microns) filled with octadecyl silane bonded silica gel which is used as a filling material, phosphoric acid aqueous solution-acetonitrile or acetic acid aqueous solution-acetonitrile as a mobile phase and detection wavelength of 220nm. The method has the advantages of high degree of separation, short analysis time, simple operation and stable and reliable analysis.

The invention provides a method for measuring the content of polyphenols in fargesia denudate. The method comprises three steps: drawing a standard curve by using gallic acid as a polyphenols standard substance, preparing a sample solution of the polyphenols in the fargesia denudate, and measuring the content of the polyphenols in a fargesia denudate sample. The method provided by the invention is low in detection limit, high in accuracy, good in repeatability and high in precision.

The present invention provides a method for detecting 2-mercaptobenzothiazole in ceftriaxone sodium, and belongs to the technical field of drug quality detection. According to the method, to-be-detected ceftriaxone sodium is dissolved in a solvent, to obtain a test solution; high-performance liquid chromatography is performed on the test solution, to obtain a spectrogram, wherein conditions of thehigh-performance liquid chromatography are: for a chromatographic column: a filler is octadecylsilane chemically bonded silica; a moving phase is 1% formic acid aqueous solution-acetonitrile, and isocratic elution is performed; a detector is an ultraviolet detector; and then a content of the 2-mercaptobenzothiazole according to the spectrogram. According to the method, the content of the 2-mercaptobenzothiazole in the ceftriaxone sodium can be effectively detected, so that product quality is effectively controlled, and drug medication safety is improved. In addition, sensitivity of the detection method provided in the present invention is relatively high, a quantification limiting concentration is 0.000005 mg / mL, and a detection limiting concentration is 0.0000015 mg / mL.

The invention discloses a method for rapidly detecting acrylic amide. The method for rapidly detecting the acrylic amide includes following steps: smashing a sample to be detected and placing the smashed sample in deionization water, stirring the deionization water for 1-4 hours in backflow mode, filtering the deionization water so as to obtain a filter solution; measuring dielectric loss rate of the filter solution under a frequency condition of 3*108-1010Hz; using a standard curve or a dependent equation of the dielectric loss rate of a standard acrylic amide solution under the same frequency so as to obtain concentration of the acrylic amide in the filter solution and calculate content of the acrylic amide in the sample. The method for rapidly detecting the acrylic amide is short in time, and simple and easy to operate, obtains better detection effects for detecting the content of the low concentration acrylic amide than detection effects obtained by using a liquid chromatogram detection method, and has a wide application prospect in the aspect of detecting the content of the acrylic amide in fried food.

The invention discloses a device for improving the content of maltitol and a preparation method thereof. The device comprises a saccharifying tank. A feeding port and an emptying port are formed in the upper end of the saccharifying tank, a timer and a pH display are installed on the outer side of the saccharifying tank, and a discharge port is formed in the lower portion of the saccharifying tank. By installing a heating device, a thermometer and the pH display, the combination can improve the temperature requirements for all steps, real-time display is achieved, and the inner states of the saccharifying tank are known and changed in time. The steps such as syrup liquifying and saccharifying are conducted, and the DE value is detected for many times in the saccharifying process of syrup, so that the saccharifying process in the saccharifying tank can be known, and the saccharifying time and the saccharifying enzyme quantity can be contrasted through figures; and the best saccharifying time and the saccharifying enzyme addictive quantity can be chosen, the effects that saccharifying is maximized, and the composite reaction is not serious are achieved, and the content of a maltitol finished product is increased.

The invention provides a method for tissue culture of cluster seedlings of herb saussureae involucratae in Xinjiang and a large-scale subculture method thereof. The method comprises the following steps: forming calluses on a MS modified culture medium (1) by induction; and inducing out a callus XCSY-1 which can quickly differentiate the cluster seedlings and stabilize a successive generation by screening and succession of the calluses on a MS modified culture medium (2), wherein, the callus can be quickly differentiated into the cluster seedlings with uniform state on a seedling strengthening culture medium. Numerous cluster seedlings of the herb saussureae involucratae with uniform growth state can be cultured by subculture proliferation of the callus XCSY-1 in Xinjiang. The cluster seedlings of the herb saussureae involucratae can be directly taken as product or raw materials, and can be cultured into rooting test tube seedlings for artificial plantation. The method has simple operation, can be applicable to large-scale production; and the cluster seedlings have more stable quality, higher yield and greatly shortened production cycle compared with wild cluster seedlings. In addition, the method requires less farmland, does not damage the wild herb saussureae involucratae resources, protects ecological environment, and helps solve the shortage problem of the herb saussureae involucratae resources in Xinjiang.

The invention relates to the technical field of waste water treatment, in particular to a micro-electrolytic filler for realizing the resource utilization of iron mud, a preparation method and a use thereof. The micro-electrolytic filler comprises the following raw materials in parts by weight: 25-45 parts of carbon, 50-80 parts of iron and 5-15 parts of binder, wherein that iron is from iron mud.When the micro-electrolytic filler of the invention is prepared, carbon, iron and binder are uniformly mixed according to the proportion and aged; then the obtained mixture is made into a green body,and the green body is dried; and then the dried green body is sintered at 600-1200 DEG C for 2-8 hours under the oxygen-free condition, and after cooling, the micro-electrolytic filler for realizingthe resource utilization of the iron mud is obtained. The microelectrolytic filler of the present invention can be used for treating organic wastewater. The invention aims at the iron mud generated inthe process of production and waste water treatment, and utilizes the principle of carbothermal reduction to carry out the resource utilization of the iron mud.

The present invention discloses a method for measuring the content of calcium oxide in lime. Calcium hydroxide generates calcium hydrate in water, and the part of calcium hydrate dissolving in water is completely ionized into hydroxyl ions and calcium ions; all-alkalinity titration is conducted to measure the molar amount of hydroxyl ions in a sample solution; a filtration weighing method is employed to obtain the weight of undissolved substance in the sample; the operation process is simple; the total weight of calcium oxide and calcium hydroxide in the sample is calculated; and equations are employed to obtain the accurate content of calcium oxide in lime calcium. The method has the advantages of accurate results, and improved effective utilization of the sample.

The invention discloses a sludge pretreatment method based on a sulfo-porphyrin iron catalyst Fenton-like system, which comprises the following steps: mixing a sulfo-porphyrin iron catalyst, methanol and a hydrogen peroxide solution, stirring, mixing the obtained mixed solution with sludge, and carrying out hydrolysis treatment to complete the pretreatment of the sludge. According to the sludge pretreatment method based on the sulfo-porphyrin iron catalyst Fenton-like system, the sulfo-porphyrin iron catalyst, methanol and the hydrogen peroxide solution are mixed and stirred to generate the mixed solution containing high-valence iron species, the mixed solution is further mixed with sludge, the sludge is effectively treated by utilizing the high-valence iron species, and the sludge treatment efficiency is improved. The method has the advantages of low catalyst and oxidant consumption, mild reaction conditions, high treatment efficiency, good treatment effect, good adaptability and the like, has very important significance for improving the subsequent resource utilization effect of the sludge, and is high in use value and good in application prospect.

The invention discloses a method for effectively removing cadmium from shellfish polysaccharide, which belongs to the technical field of marine product processing. The method comprises the following steps of: taking chitosan as a raw material, sequentially carrying out thermal activation and acid activating treatment on natural attapulgite to obtain the modified attapulgite, taking a chitosan sol subjected to physical modification, adding ultrapure water for diluting, and then slowly adding the modified attapulgite for carrying out primary loading; slowly adding the prepared primary loaded attapulgite to the chitosan sol undiluted, and carrying out secondary loading; and treating the compound with 1.0mol / L of sodium hydroxide solution for 1h, washing to be neutral with ultrapure water, and leaching and drying to obtain attapulgite-chitosan particles of 200 meshes, which are used for removing the cadmium from the shellfish polysaccharide. The method for removing the cadmium from the shellfish polysaccharide has high removal efficiency and little impact on the polysaccharide.

The invention discloses a method for measuring calcium hydroxide content in lime, according to which calcium hydroxide is generated in water by calcium oxide, and the part of calcium hydroxide dissolved in water is completely ionized into hydroxide ions and calcium ions; the sample is titrated by full alkalinity The molar weight of hydroxide ions in the solution can be obtained by filtering and weighing method to obtain the amount of insoluble matter in the sample, and the operation process is simple; Calcium hydroxide content in lime can be accurately obtained by using equation calculation, which can improve the effective utilization rate of lime.

This invention relates to marketing and creation of digital content (text, voice, video, imagery, etc.) and understanding what topics are most relevant for an intended audience, its size, the type of content that audience wants to consume, and the optimal distribution method (social media, email, podcasts, voice assistants, web pages, mobile apps, etc.), and leveraging machine learning to automatically create content with a high chance of success.

The invention relates to an analysis and detection method of a prasugrel intermediate, which is used for 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5,6,7, 7A-Tetrahydrothieno[3,2-C]pyridin-2(4H)-one quality control, using octadecylsilane bonded silica gel as packing column (C18, 4.6×150mm, 5μm), Using phosphoric acid aqueous solution-acetonitrile or acetic acid aqueous solution-acetonitrile as the mobile phase, the detection wavelength is 220nm, and the reversed-phase high performance liquid chromatography is used for analysis and detection. The method of the invention has the following advantages: high separation degree, short analysis time, simple and convenient operation, stable and reliable analysis method.

A preparation method of an activated carbon modified material, comprising the first step of pretreatment of activated carbon, the second step of combined physical and chemical modification of activated carbon, and the like. The present invention adopts the high-temperature water vapor activation method combined with the chemical modification method to modify the pore structure and surface oxygen-containing groups of the pretreated activated carbon, and the prepared activated carbon modified material has an increased number of micropores less than 1 nm , the oxygen-containing groups on the surface are significantly reduced, and it has high-efficiency adsorption performance for methylene chloride under high water content conditions. The preparation process of the invention is simple, the amount of consumable materials is small, and the preparation conditions are mild. The prepared activated carbon modified material has the advantages of large micropore volume, good moisture resistance and stable adsorption performance, which can effectively weaken the influence of water molecules on the adsorption effect of methylene chloride, and make up for the adsorption of target organic compounds by porous carbon materials under the condition of high water content. Insufficient capacity.

The invention discloses a method for determining content of calcium hydroxide in lime. The method includes that according to a law that calcium oxide generates calcium hydroxide in water and a part, dissolved in water, of calcium hydroxide is completely electrolyzed to be hydroxyl ions and calcium ions, mass of insoluble substance in a sample is obtained by a filter weighing method by adopting molar weight of the hydroxyl ions in a total alkalinity titration sample solution, and the operation process is simple and convenient; content of calcium hydroxide in lime can be obtained accurately by utilizing equation calculating according to a sum of mass of calcium hydroxide and calcium oxide in the sample solution and molar weight of the hydroxyl ions in the sample solution, and effective utilization rate of lime can be increased.

The invention discloses a sludge pretreatment method based on a sulfonic acid porphyrin iron catalyst Fenton-like system, comprising the following steps: mixing the sulfonic acid porphyrin iron catalyst, methanol and hydrogen peroxide solution, stirring, and mixing the obtained The liquid is mixed with the sludge for hydrolysis treatment to complete the pretreatment of the sludge. The present invention is based on the sludge pretreatment method of the sulfonic acid porphyrin iron catalyst Fenton system, by first mixing and stirring the sulfonic acid porphyrin iron catalyst, methanol and hydrogen peroxide solution to generate a mixed solution containing high-valent iron species , and then mixed with sludge, using high-valent iron species to achieve effective treatment of sludge, has the advantages of low catalyst and oxidant consumption, mild reaction conditions, high treatment efficiency, good treatment effect, and good adaptability. The effect of resource utilization is of great significance, with high use value and good application prospect.