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82results about How to "Lower pH" patented technology

Saline-alkali soil conditioner and application method thereof

The invention relates to the field of soil improvement, and discloses a saline-alkali soil conditioner and an application method thereof.The saline-alkali soil conditioner is prepared from, by weight, 10-30 parts of desulfurized gypsum, 5-20 parts of calcium chloride, 5-15 parts of ferrous sulfate, 5-15 parts of ammonium sulfate, 20-30 parts of organic materials, 20-30 parts of inorganic materials and 5-10 parts of microbial conditioner; the salt content and the pH value of the saline-alkali soil are reduced through desulfurized gypsum, calcium chloride, ferrous sulfate and ammonium sulfate; organic matter of saline-alkali soil is increased through organic materials, and the soil structure is improved; the water retention capacity and the nutrient supply capacity of the saline-alkali soil are improved through the inorganic materials, and the soil structure is further improved; solidified nutrients in the saline-alkali soil are activated through the microbial modifier, and the structure of the soil is improved; an ascending channel of soil underground salt is cut off through the isolation layer; therefore, the problem that the improvement efficiency is low due to the fact that salt and alkali return is prone to occurring in traditional improvement measures is solved.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI

Synchronous red mud dealkalization method for soil

PendingCN119138299AEnhanced ionization strengthFine granularityGrowth substratesCulture mediaSoil treatmentEdaphic
The invention relates to an aluminum oxide industrial waste residue treatment technology, in particular to a red mud synchronous dealkalization soil treatment method. According to the method, citric acid and calcium nitrate are adopted as treating agents to cooperatively treat the red mud, the sodium content requirement of planting soil is taken as the standard, the red mud is dealkalized to reduce the sodium content, meanwhile, the granularity of the dealkalized red mud is improved, the organic matter content of the dealkalized red mud is increased, and then the dealkalized red mud and normal soil are mixed in proportion to form the dealkalized red mud soil. The physicochemical indexes of the dealkalized red mud soil are as follows: the volume weight is 1.18-1.26 g / cm < 3 >, the organic matter content is 10.6-12.3%, the pH value is 7.2-7.35, the EC is 0.492-0.562 ms / cm, and the specific surface area is 51.49-59.80 m < 2 > / g. The dealkalized red mud soil obtained through the synergistic treatment of the citric acid and the calcium nitrate completely meets the physicochemical properties of the soil and the planting requirements of plants.
Owner:JIANGXI UNIV OF SCI & TECH

Precipitation supported slow-release carbon-based iron fertilizer and preparation method thereof

The invention discloses a precipitation-supported slow-release carbon-based iron fertilizer and a preparation method thereof, and the preparation method specifically comprises the following steps: firstly, putting a biological carapace heavy metal adsorbent into a calcium hydroxide solution for dipping, drying, then putting the biological carapace heavy metal adsorbent into a ferrous sulfate solution for dipping in two times, and finally drying and granulating. Precipitated ferric hydroxide, a ferrous hydroxide mixture and excessive ferric sulfate are uniformly dispersed and attached to the interiors of pore channels of the porous adsorbent, and the excessive ferric sulfate can quickly provide iron ions for antagonistic cadmium and arsenic ion absorption in the early growth stage of rice. Precipitated ferric hydroxide and ferrous hydroxide wrapped by calcium sulfate in the porous adsorbent not only can realize long-acting slow release of iron ions, but also can reduce the oxygen content of soil, and iron ion antagonism and precipitation type adsorption loading modes are carried out in the whole growth process of rice, so that the release period of the iron ions is greatly prolonged, and the soil quality is improved. The iron fertilizer disclosed by the invention has an excellent rice cadmium-arsenic antagonism effect and has an excellent application prospect.
Owner:INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI

Saline alkali soil conditioner and preparation method thereof

The invention discloses a saline alkali soil conditioner and a preparation method thereof, and belongs to the technical field of soil improvement. The soil conditioner is prepared from the following raw materials in parts by weight: 100-200 parts of modified phosphogypsum, 5-10 parts of a microbial agent and 10-20 parts of an activating agent, the modified ardealite is prepared by compounding ardealite and modified coal gangue and then modifying with rare earth; the microbial agent is prepared by mixing bacillus subtilis, streptomyces cellulosae and bacillus mucilaginosus. Chemical-physical-biological improvement technologies are combined, so that the physical and chemical properties of the saline-alkali soil are effectively improved, the biological activity of the soil is improved, the growth of crops is promoted, the yield and disease resistance of the crops are improved, and the resource utilization rate of the ardealite is increased.
Owner:SHIKEFENG CHEM IND CO LTD

Two-cut mulberry twig fermented feed and application thereof in chicken raising

The invention relates to the field of microbial feeds, in particular to a two-cut ramulus mori fermented feed and application thereof in chicken raising, two-cut ramulus mori is high in yield and low in collection cost, and feed cost can be greatly reduced. According to the method, silage conditions are optimized for ramulus mori raw materials, firstly, bacterial strains are screened, a bacterial strain XMS03 and a bacterial strain XMS01 are selected for silage of the two-cut ramulus mori, and the two-cut ramulus mori fermented feed is obtained. The method effectively improves the ensiling efficiency of the ramulus mori, assists the ensiling of the two-cut ramulus mori by optimizing an auxiliary agent and adding cellulase and molasses, improves the quality of the ramulus mori ensiling feed, effectively improves the application range of the waste two-cut ramulus mori, can change wastes into valuables to the greatest extent, and meanwhile, due to the fact that the used raw material is the two-cut ramulus mori, the ensiling efficiency of the ramulus mori is greatly improved. Compared with the whole-plant ramulus mori reported in the prior art, the method is simpler in obtaining mode and lower in cost, and compared with the whole-plant ramulus mori reported in the prior art, the nutritional ingredients of the fermentation substrate are more stable, and the application range of the two-cut ramulus mori is widened.
Owner:广西农业职业技术大学

Fermented lactobacillus mucus Z-15 and application thereof in preparation of fermented bread

The invention discloses fermented lactobacillus mucus Z-15 and application thereof in preparation of fermented bread, belongs to the technical field of microorganisms, and provides the fermented lactobacillus mucus Z-15 which is preserved in the China Center for Type Culture Collection on January 5, 2024, the preservation address is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M2024024. The method for preparing the fermented bread comprises the following steps: mixing the fermented lactobacillus mucus Z-15, sterile water and high gluten flour, and standing to obtain sour dough; mixing with high gluten flour, kluyveromyces marxianus GY-8, white granulated sugar, salt and water, then adding butter, standing for fermentation, performing secondary fermentation to obtain bread dough, and baking to obtain the fermented bread. According to the method disclosed by the invention, the flavor of the bread obtained by co-fermentation of the lactobacillus mucus Z-15 and the kluyveromyces marxianus GY-8 is remarkably improved.
Owner:SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY

Conversion and migration equipment and conversion and migration method for high-low-lying saline-alkali soil

PendingCN119111370AGood desalination effectAccurate hydration needsWatering devicesCultivating equipmentsAlkali soilWater source
The invention relates to high-low-lying saline-alkali soil conversion and migration equipment and a conversion and migration method, the high-low-lying saline-alkali soil conversion and migration equipment comprises a blocking ditch arranged between a high land and a low-lying land, a drip irrigation pipe is buried in the high land, and a migration permeable pipe extending into the blocking ditch is buried in the low-lying land; the aeration rods are inserted into the impervious layer of the low-lying land at intervals. In the application, through the design of the blocking ditches, water sources in rainy seasons can be collected and gathered, flushing water resources of the low-lying land can be recycled in the treatment process, water consumption of the low-lying land and the high land is neutralized, and waste of the water resources is reduced; and when the low-lying land is preliminarily treated, an impervious layer is destroyed by adopting heat energy and an aeration mode, the permeability of soluble salt and alkali is enhanced, and an efficient and reliable treatment mode is provided. In addition, the invention further provides a conversion and migration method, by means of the method, the use amount of water resources can be reduced, desalination and water supplement are subjected to balanced treatment, and the treatment and irrigation requirements are met.
Owner:BEIFANG UNIV OF NATITIES

Composite microbial agent containing halophilous bacillus HMF09 and application thereof

The invention relates to a compound microorganism bacterium agent which comprises halophilous bacillus HMF09 and bacillus subtilis, and the preservation number of the halophilous bacillus HMF09 is CGMCC (China General Microbiological Culture Collection Center) No.30475. The complex microbial inoculant can effectively reduce the pH value of soil, reduce the salt content of the soil, improve the emergence rate and salt and alkali resistance of crops and increase the yield of the crops.
Owner:QINHUANGDAO HEMIAO BIOLOGICAL TECH CO LTD

Precursor substance additive composition for adjusting pork flavor and preparation method thereof

The invention belongs to the technical field of pork flavor additives, and particularly relates to a precursor substance additive composition for adjusting pork flavor and a preparation method thereof. According to the precursor substance additive composition prepared by the preparation method disclosed by the invention, various effective components such as the folium cortex eucommiae extracting solution, the liquorice root and the hawthorn fruit are scientifically proportioned and are matched with the plant slow-release agent and the blender, so that the gastrointestinal function and the disease resistance of pigs are regulated through a synergistic effect, and the contents of meat flavor pre-substances such as linoleic acid and inosinic acid in pork are increased; the plant slow-release agent is prepared in an embedding emulsion mode, release of active ingredients can be controlled in the digestion process of pigs, lasting nutritional supplement is provided, the anti-oxidation and immune effects of plant extracts are enhanced, the palatability of the pig feed is improved through the blender, the taste is enhanced, meanwhile, the antibacterial effect is enhanced, intestinal health and digestion are promoted, and the effect of improving the immunity of the pigs is achieved. The obtained pork is fresh, tender and juicy, and meets the requirements of consumers for high quality of meat products.
Owner:INSTITUTE OF SUBTROPICAL AGRICULTURE CHINESE ACADEMY OF SCIENCES

Method for restoring arsenic and halogenated hydrocarbon combined polluted soil through oxidation enhanced leaching and leaching agent

The invention discloses a method for restoring arsenic and halogenated hydrocarbon combined contaminated soil through oxidation enhanced leaching and a leaching agent. The leaching agent is composed of a first-stage leaching solution and a second-stage leaching solution. The first-stage leacheate eluting agent is composed of persulfate and strong base; the second-stage leacheate eluting agent is composed of organic acid and alcohol. According to the method, a two-stage leaching mode is adopted for the arsenic and halogenated hydrocarbon combined contaminated soil, synchronous removal of arsenic and halogenated hydrocarbon in the contaminated soil can be achieved through the oxidation strengthening synergistic interaction effect of the leaching agent, the toxicity of arsenic can be reduced, potential safety hazards in the subsequent waste liquid treatment process can be reduced, and the method is mild in condition and easy to implement. The method has the advantages of high removal rate, low cost and the like.
Owner:AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD

Special carbon-based microbial organic-inorganic compound fertilizer for sunflowers

The invention relates to the technical field of fertilizers, in particular to a special carbon-based microbial organic-inorganic compound fertilizer for sunflowers. The special carbon-based microbial organic-inorganic compound fertilizer for sunflowers is prepared by mixing and granulating microorganism-loaded biomass charcoal, urea, decomposed cow dung and deionized water, the microorganism-loaded biomass charcoal is obtained by carboxylating biomass charcoal, grafting trehalose and loading microorganisms; the prepared special carbon-based microbial organic-inorganic compound fertilizer for sunflowers can obviously reduce the pH value of soil, improve the acid-base balance of the soil and provide a more suitable soil environment for the growth of the sunflowers.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF AGRI & ANIMAL HUSBANDRY SCI +1

Method for preparing planting soil from gravel sewage mud cake and application

PendingCN119605597AReduce effective copper contentlower pHGrowth substratesCulture mediaCation-exchange capacitySoil science
The invention relates to the technical field of environmental protection, and particularly discloses a method for preparing planting soil from artificial gravel sewage mud cakes and application of the planting soil. During treatment, the mud cakes are crushed, mixed with quick lime and aged for 7 days or above; and adding sulfur powder, an organic fertilizer and magnesium sulfate into the obtained material, and mixing to obtain the planting soil. The mud cake is treated, the pH value of the mud cake is reduced, the cation exchange capacity of the mud cake is improved, the non-capillary porosity is reduced, and the content of medium trace elements is adjusted, so that the mud cake can be suitable for landscaping planting soil.
Owner:CHINA THREE GORGES PROJECTS DEV CO LTD +1

A composite cementitious material encapsulating chromium and a method of making the same

The application discloses a kind of solid sealing chromium composite cementitious material and preparation method thereof, solid sealing chromium composite cementitious material includes the following mass percentage of substance: 65wt.%~75wt.% of clinker with heavy metal content, 20wt.%~34wt.% of poly-element auxiliary cementitious material, the rest is gypsum;Total chromium content in clinker with heavy metal content is greater than 150mg / kg;Poly-element auxiliary cementitious material includes the following mass percentage of substance: 30wt.%~50wt.% of microbial mineralization steel slag powder, 20wt.%~40wt.% of metakaolin, the rest is fly ash;Microbial mineralization steel slag powder is prepared by carbonic anhydrase producing bacteria and steel slag powder carbon fixation grinding.The application is based on the synergistic effect between clinker with heavy metal and the overall chemical composition of poly-element composite auxiliary cementitious material, and the pH value of solidified body is reduced by secondary hydration.
Owner:SOUTHEAST UNIV

A method for improving saline-alkali soil

The application discloses a saline-alkali soil improvement method and belongs to the technical field of saline-alkali soil improvement. The method comprises the following steps: in a screw extruder, humic acid and acrylic acid are grafted and polymerized in a reaction section to form humic acid grafted acrylic acid polymer; N-[2-(2-methoxy-5-nitro-phenoxy)ethyl]pyridine, [2-(3,4-dichlorophenoxy)-ethyl]hexadecyl diethyl ammonium bromide and furfural residue are sequentially added at the opening of a conveying section, and after passing through a mixing section, the mixture is extruded and granulated to obtain a conditioner; according to weight parts, the furfural residue is 70-90 parts, the humic acid grafted acrylic acid polymer is 10-25 parts, and the N-[2-(2-methoxy-5-nitro-phenoxy)ethyl]pyridine and [2-(3,4-dichlorophenoxy)-ethyl]hexadecyl diethyl ammonium bromide are 1-5 parts. The conditioner is applied to saline-alkali soil by being scattered in the soil during ploughing or being applied to the soil by hole planting during sowing, so that the organic matter content of the soil can be increased, the saline-alkali components can be separated from the roots of crops, the stress of the saline-alkali soil on the crops can be effectively reduced, and the yield of the crops can be improved.
Owner:HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI

Method for old ginseng hole continuous cropping of ginseng

The present application relates to the field of Gastrodia elata cultivation, and particularly relates to a method for continuously planting Gastrodia elata in old planting holes. The present application effectively improves the yield of Gastrodia elata, and significantly reduces the incidence of new Gastrodia elata and the decay rate of mother Gastrodia elata by scientifically planting after rhizoma polygonati. In the present application, the breeding hole is sexual reproduction, and it does not need to cultivate armillaria bed. The armillaria, fungus material and Gastrodia elata seeds can be placed at the same time. The planting hole is asexual reproduction. Since the Gastrodia elata seed needs a large amount of nutrient elements, the armillaria bed needs to be cultivated. This operation mode can form the difference of microbial community between the breeding hole and the planting hole, which is beneficial to ecological competition, and thus improves the soil recovery and improvement.
Owner:GUIZHOU JIULONG TIANMA CO LTD

A kefir active lactic acid bacteria bubble jelly drink and a preparation method thereof

PendingCN122096212Apure flavorGood odor controlMilk preparationMilking devicesBiotechnologyLactic acid bacterium
The application provides a preparation method of a kefir active lactic acid bacteria bubble jelly drink. Compared with the prior art, firstly, the mixed liquid of thickening agent and the like is subjected to ultrahigh pressure sterilization before inoculation, which ensures the smooth progress of the kefir fermentation process and does not cause pollution, and compared with other heat treatment sterilization processes, the sterilization process does not have a cooking smell, the base flavor after the kefir fermentation is purer, and the peculiar smell control is better; secondly, after the compound kefir starter is added to the jelly liquid for fermentation, sufficient bubbles are generated, and the product can maintain a certain strength after rewarming, providing a unique product taste and texture, which is different from the jelly drink after aeration, the product bubbles are generated during the fermentation process, and the taste is more natural; in addition, the application reduces the pH value of the base system during the fermentation process, reduces the use of part of the acidity regulator, and further improves the product gel strength.
Owner:INNER MONGOLIA YILI IND GROUP CO LTD

Compound probiotic fermented feed for aquaculture and preparation method and application thereof

PendingCN122096269AGuaranteed Combination ScienceNo negative effects such as antagonismWaste water treatment from animal husbandryAnimal feeding stuffBiotechnologyFish growth
The application discloses a kind of fermented feed fermented by three strains of probiotics of Bacillus YA ( Bacillus sp ), yeast Y ( Saccharomyces cerevisiae ) and capsular red bacteria R3 ( Rhodobacter capsulatus ), and preparation method and application in aquaculture thereof, and viable count is not less than 1×10 7 CFU / g.The fermented feed is replaced ordinary feed according to certain proportion, and feeding result shows that aquaculture water quality is significantly improved after adding fermented feed, and fish growth performance, digestive enzyme activity, immunity, and muscle quality are also obviously improved.Using the feed in suitable range can shorten growth cycle, reduce cost, improve aquaculture environment, reduce antibiotic use, and improve muscle quality of farmed animals, with good economic and ecological benefits, simple fermentation process, low cost, and suitable for industrial large-scale production.
Owner:TIANJIN NORMAL UNIVERSITY

Method for promoting bright color of flowers by lincomycin finished product liquid fertilizer

The invention belongs to the field of liquid fertilizers, and particularly relates to a method for promoting bright colors of flowers by using a lincomycin finished product liquid fertilizer, which comprises the following steps: diluting lincomycin dry powder according to a mass ratio of 1: 100 to obtain a lincomycin finished product liquid; the method comprises the following steps: carrying out aerobic culture in a liquid culture medium containing starch, yeast powder, soybean meal, yeast extract and inorganic salt, supplementing ammonium ions in the lincomycin fermentation process, and controlling the fermentation time to be 36-110 hours, so as to obtain lincomycin fermentation liquor; dissolving urea, potassium chloride, zinc sulfate and the iron fulvic acid solution in water, and uniformly mixing to prepare a nutrient solution; the method comprises the following steps: treating zeolite with the fineness of 200 meshes at a high temperature of 200 DEG C; airing or drying the zeolite until the water content of the zeolite is reduced to be not higher than 5%; according to the lincomycin finished product liquid fertilizer disclosed by the invention, the flowering period is effectively prolonged, so that the bright color effect of flowers is promoted.
Owner:QITAI HEWO DIDI WATER FERTILIZER TECHNOLOGY CO LTD

A method for dealkalization of red mud

The invention discloses a red mud dealkalization method. Specifically, high-concentration bottom water collected from the bottom of a Maotai-flavor liquor brewing pit is used as a dealkalization agent. Specifically, the steps are as follows: first, the filter press red mud produced by an alumina plant is crushed and sieved, and then the dealkalization agent is evenly mixed with the red mud under the sieve, and after reacting at 20-50 DEG C for a certain time, an appropriate amount of a decolorizing agent is added, stirred evenly, and then the dealkalization red mud is obtained by filter pressing. The method can effectively remove alkali from the red mud and promote the agglomeration of red mud particles. The dealkalized red mud can be applied to the fields of soil, building materials, water treatment agents, etc. The entire dealkalization process of the method is green, low-carbon, environmentally friendly, and low-cost, and has a prospect for industrial application.
Owner:GUIZHOU NORMAL UNIVERSITY +1

Culture medium for lactic acid bacteria postbiotics and application of culture medium

The invention provides a culture medium for lactic acid bacteria after-generation and application, the culture medium takes trehalose as a carbon source and a yeast extract as a nitrogen source, so that the growth biomass of lactobacillus plantarum, lactobacillus casei and lactobacillus pentosus can be remarkably increased, the pH is reduced, and the antibacterial ability is improved. Lactobacillus plantarum, lactobacillus casei and lactobacillus pentosus are prepared through the culture medium for the lactobacillus after-generation, so that the lactobacillus after-generation has a good inhibition effect on main food-borne pathogenic bacteria such as escherichia coli, staphylococcus aureus, salmonella, pseudomonas aeruginosa and listeria monocytogenes; the preservative can be widely applied to preservation and preservation of meat products such as chilled chicken and pork. The preparation method of the lactic acid bacteria metagen is simple, convenient, low in cost, natural, safe and suitable for large-scale production.
Owner:UNIV OF JINAN

Preparation method and application of algal hydrothermal carbon material

This invention discloses a method for preparing and applying algal hydrothermal char material. Algae are mixed with a reaction medium at a solid-liquid ratio of 50-100 g / L. After thorough stirring, the mixture is reacted under autogenous pressure and at a temperature of 130-150°C for 3-5 hours. After the reaction, the mixture is filtered, washed, dried, and ground to obtain the algal hydrothermal char material. The reaction medium is a mixed solution of ammonium phosphate and ammonia. The prepared algal hydrothermal char material can be used to improve the saline-alkali geochemical properties, reduce pH and salinity, and ultimately increase crop yield.
Owner:张秀芬

Additive for crack self-repairing of service concrete in corrosive environment and preparation method thereof

PendingCN119528478AImprove the scope of mineralization activitiesincrease the distributionSolid waste managementAluminateMicroorganism
The invention discloses an additive for self-repairing concrete cracks in a corrosive environment and a preparation method of the additive. The additive comprises component A microspheres and component B microspheres, the component A microspheres comprise the following substances in parts by weight: 17.74-51.9 parts of a calcium source, 8-9 parts of microorganisms and 0.5-1 part of a tackifier; the component B microsphere is prepared from the following substances in parts by weight: 28.1 to 49.51 parts of an aluminum source and 0.5 to 1 part of a tackifier; the surfaces of the component A microspheres and the component B microspheres are coated with sulphoaluminate cement-iron ore powder mixed gel layers. The microbe mineralization activity range can be remarkably widened, the distribution range of repairing products in cracks can be greatly widened through the synergistic effect of inorganic mineral gel and microorganisms, the limitation that the self-repairing depth of the microorganisms is small is broken through, self-repairing of the cracks in the whole area range is achieved, and the self-repairing effect of the whole fracture surfaces of the cracks is improved; the water blocking capability of the crack can be realized, and particularly the blocking of pressure water can be realized.
Owner:JIANGSU UNIV OF SCI & TECH

Jam inner core for cheese food and preparation method of jam inner core

The invention relates to a jam inner core used in cheese food and a preparation method thereof. The jam inner core comprises the following components in parts by weight: 10-40 parts of water, 5-20 parts of cream cheese, 10-30 parts of cream, 40-55 parts of jam, 0.5-2 parts of a stabilizer, 0.5-1 part of a thickener and 0.01-0.1 part of a bacteriostatic agent. According to the scheme provided by the invention, the jam inner core has good flowability under the condition that a large amount of jam is added into the jam inner core, and the jam inner core can keep a relatively low pH value under the condition that the jam inner core does not contain an acidity regulator, so that the shelf life can be prolonged.
Owner:INNER MONGOLIA YIJIAHAO CHEESE CO LTD

Green circulating planting and breeding method for fruit poultry by using spring and autumn greenhouse

The invention discloses a fruit and poultry circulating planting and breeding method using a spring and autumn greenhouse, and relates to the technical field of agricultural ecological planting and breeding. According to the method, the neutral period of winter crop rotation of fruit trees such as grapes, peaches and cherries planted in spring and autumn sheds is utilized; a closed-loop circulation mode of combining planting and breeding of fruits and poultry in the greenhouse in winter and spring is constructed, wherein the closed-loop circulation mode comprises the steps of preparation of compound bacteria, treatment of pruned branches of fruit trees, film mulching and constant-temperature mixed fermentation of small piles, mixing and feeding of fermented materials and conventional materials, piling of poultry manure and pruned waste, fermentation and returning to the field. According to the method, a production mode of combining fruit and poultry breeding is utilized, two self-preserved lactobacillus strains are used, crushed branches of fruit trees are subjected to mixed fermentation in a shed by adopting a small pile film covering mode, after fermentation is completed, the lactobacillus strains are added into feed in proportion, and finally poultry guano and the crushed branches of the fruit trees in the feeding process are piled up among rows of the fruit trees and fermented again. And finally, waste recycling in facility fruit poultry production is achieved, comprehensive economic benefits are remarkably improved, adaptability is high, and application and popularization are easy.
Owner:TIANJIN ACAD OF AGRI SCI +1

A method for detecting heavy metal content in food additives

ActiveCN120908167BMeet stringent safety standardsEnsure accurate quantificationPreparing sample for investigationAnalysis by thermal excitationFood additiveEnzymatic hydrolysis
This invention belongs to the field of detection technology, specifically relating to a method for detecting the heavy metal content in food additives. The detection method includes the following steps: (1) sample pretreatment; (2) preparing a series of heavy metal standard solutions of different concentrations, testing their net strength using an ICP-MS instrument, and obtaining a standard working curve; (3) testing the net strength of the sample solution and blank solution using an ICP-MS instrument, and obtaining the concentration of heavy metals in the food additives by combining the standard working curves, and further obtaining the content of heavy metals in the food additives. The detection method of this invention can be used to detect the heavy metal arsenic in compound meat product thickeners. Through enzymatic hydrolysis-assisted extraction and ultrasonic synergistic extraction, gradient ultrasound combined with temperature control is used to further destroy the sample structure and improve the arsenic dissolution efficiency; EDTA and citric acid are used to complex metal ions, and multiple components synergistically reduce the fixation effect of other ions on arsenic. Through synergistic effect, the accuracy of the detection results is improved.
Owner:宝鸡市质量技术检验检测中心

Silver-coated copper powder, and preparation method and application thereof

ActiveCN117620162Blower pHlower resistance
This invention belongs to the field of conductive materials technology, specifically relating to a silver-coated copper powder, its preparation method, and its application. A method for preparing silver-coated copper powder includes the following steps: S1, pretreating copper powder to obtain pretreated copper powder; S2, mixing the pretreated copper powder, reducing agent, additive, and solvent to obtain a copper powder mixture; the additive is dihydrogen phosphate and / or hydrogen phosphate; S3, mixing silver salt, complex, and solvent to obtain a silver complex solution; S4, mixing the copper powder mixture and the silver complex solution, reacting to obtain a silver-coated copper powder precursor; S5, post-treating the silver-coated copper powder precursor to obtain silver-coated copper powder. The addition of dihydrogen phosphate and / or hydrogen phosphate to the silver-containing reaction solution in this invention can lower the pH value of the copper powder mixture, improve the surface condition of the copper powder, and thus reduce the resistivity of the silver-coated copper powder.
Owner:JINGLAN ADVANCED MATERIAL CO LTD

A new type of Paenibacillus SN-8-1 and its application

ActiveCN118773040BIncrease the content of soluble phosphorusImprove solubilityBacteriaMicroorganism based processesBiotechnologyBacilli
The present invention discloses a novel Paenibacillus sp. SN‑8‑1 and its application, and relates to the field of microbial technology. The novel Paenibacillus sp. SN‑8‑1 disclosed in the present invention is classified and named Paenibacillus sp. SN‑8‑1, which has been deposited in the China Microbial Culture Collection Center, with a deposit number of CGMCCNO.1.60135, a deposit date of January 16, 2024, and a deposit address of: Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing. The novel Paenibacillus sp. SN‑8‑1 of the present application effectively promotes the increase of soybean plant height, the increase of fresh weight of the above-ground part of soybean, and the increase of fresh weight of the underground part of soybean; secretes organic acids and phosphatases; and can effectively dissolve insoluble inorganic phosphorus. It is used to solve the problem of low phosphorus utilization efficiency in agricultural and forestry land, and has good application and promotion value.
Owner:NANJING FORESTRY UNIV

Chemical leaching method for leaching battery black powder with sulfuric acid

The invention relates to a chemical leaching method for leaching battery black powder with sulfuric acid, which comprises the following steps of: roasting the ground black powder to obtain a roasted sample; adding the roasted sample into dilute sulphuric acid, carrying out primary leaching under the conditions that the water bath heating temperature is 90 DEG C and the reaction time is 2 hours, controlling the pH at the leaching reaction end point to be 3.5-4.0 and the final liquid-solid mass ratio to be 2.8-3.0: 1, and carrying out suction filtration after the leaching is finished to respectively obtain primary leaching liquid and primary leaching residues; the primary leaching residues are added into dilute sulfuric acid, secondary leaching is carried out under the conditions that the water bath heating temperature is 90 DEG C and the reaction time is 2 h, the pH of the leaching reaction end point is controlled to be 1.0, and secondary leaching liquid and secondary leaching residues are obtained through suction filtration after leaching is finished; and combining the second immersion liquid with the first immersion liquid. The method is efficient, safe and environment-friendly.
Owner:JINCHUAN GRP NICKEL SALTS CO LTD

High-performance ceramic-based wear-resistant material for reinforcing lining structure of coal silo and preparation method of wear-resistant material

The invention belongs to the field of building materials, and relates to a wear-resistant material for reinforcing a high-performance ceramic-based coal silo lining structure and a preparation method of the wear-resistant material, the wear-resistant material comprises the following components: 42-56 wt% of a high-performance ceramic-based gelling agent, 41-57 wt% of composite aggregate and 1-3 wt% of a fiber component; the high-performance ceramic-based gelling agent is prepared from the following components in percentage by weight: 55 to 70 percent of high-performance ceramic-based gelling agent powder, 16 to 25 percent of composite phosphate and 14 to 20 percent of composite retarder. The wear-resistant material for reinforcing the high-performance ceramic-based coal silo lining structure prepared by the invention has the advantages of strong bonding capacity, strong salt corrosion resistance, strong impact resistance, strong wear resistance, strong high temperature resistance and the like, has strong bonding property with a coal silo lining concrete structure, and is simple in preparation process, convenient to use, energy-saving and environment-friendly.
Owner:SHENHUA HUANGHUA PORT

A type of attapulgite-based animal talcum powder for animal husbandry and its preparation method

This invention discloses an attapulgite-based animal talcum powder for animal husbandry and its preparation method. The method involves placing iron-modified attapulgite and antibacterial-modified attapulgite, activated carbon, gypsum, calamine, plant powder, and superabsorbent resin in a powder mixer and mixing thoroughly. The mixture contains 70-80 parts modified attapulgite, 3-10 parts activated carbon, 3-5 parts gypsum, 3-10 parts calamine, 3-5 parts plant powder, and 0.25-1 part superabsorbent resin. The attapulgite-based animal talcum powder prepared by this invention has a fine texture and a mild feel. It provides dryness and warmth, sterilization, and adsorption of harmful gases, and can be widely used for applying to the bodies of newborn piglets, postpartum vulvar care of sows, and environmental improvement in animal housing.
Owner:LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES