40results about How to "Raise the pH" patented technology

The invention belongs to the technical field of biology, and particularly relates to antibacterial peptide based on large yellow croaker CXCL8 protein and application of the antibacterial peptide. The preparation method comprises the following steps: by taking a large yellow croaker CXCL8 protein as a template, intercepting a linear polypeptide of 13 amino acids, and carrying out carboxyl terminal amidation modification, so as to obtain the antibacterial peptide AVV13N, and the amino acid sequence of the antibacterial peptide AVV13N is Ala-Arg-Trp-Val-Arg-Arg-Val-Leu-Lys-Lys-Met-Val-NH2; the antibacterial peptide AVK13N is obtained by interchanging lysine at the 11th site and valine at the 13th site in an amino acid sequence of the antibacterial peptide AVV13N, and the amino acid sequence of the antibacterial peptide AVK13N is Ala-Arg-Trp-Val-Arg-Arg-Val-Leu-Lys-Lys-Val-Met-Lys-NH2. The molecular weights of the antibacterial peptides AVV13N and AVK13N are both 1669.12 Da, the isoelectric points of the antibacterial peptides AVV13N and AVK13N are both 12.44, and the antibacterial peptides AVV13N and AVK13N are both alkaline polypeptides. The antibacterial peptides AVV13N and AVK13N have broad-spectrum bactericidal activity and can be used for specifically killing gram-positive bacteria and gram-negative bacteria. In addition, the antibacterial peptides AVV13N and AVK13N have relatively weak hemolytic activity, relatively low cytotoxicity and good temperature stability, pH value stability and salt ion stability. The antibacterial peptides AVV13N and AVK13N provided by the invention can replace antibiotics and are applied to prevention and treatment of bacterial diseases.

The invention belongs to the technical field of soil conservation, and particularly relates to a method for promoting plant growth and regulating soil nutrients. The invention discloses a method for regulating and controlling corn and tobacco growth and rhizosphere soil nutrients through combination of AMF and a planting mode. The method comprises the following steps: preparing an AMF-containing microbial inoculum by using M. mosseae (F. mosseae); cultivating flue-cured tobacco seedlings and corn seedlings; flue-cured tobacco seedlings and corn seedlings are jointly planted in an intercropping mode by utilizing an AMF-containing fungicide. The method can relieve continuous cropping obstacles of flue-cured tobaccos and promote growth of the flue-cured tobaccos and corn, and has a certain effect on soil conservation.

The invention relates to the field of plant growth regulators, in particular to an ultramicro-granulated energy-gathered humic acid composite preparation which is prepared from the following raw materials in parts by weight: 50-80 parts of ultramicro-granulated energy-gathered humic acid, 10-30 parts of nanoscale metal oxide, 5-20 parts of a microbial agent, 1-10 parts of a plant growth regulator and 5-15 parts of a slow release agent. According to the invention, ultrafine particle shaped humic acid, nano-scale metal oxide, a microbial agent, a plant growth regulator and a slow-release agent are organically combined. The effect of the soil conditioner is far better than that of a single component or a traditional soil conditioner.

The invention discloses a biological soil conditioner containing mineral powder and a preparation method thereof, and belongs to the technical field of microbial soil conditioners. The conditioner is prepared from the following raw materials in parts by weight: 20 to 40 parts of compound microorganism bacterium liquid, 10 to 20 parts of mineral powder and 15 to 20 parts of auxiliary material carrier. According to the invention, two high-acid-resistance growth-promoting bacterial fungal microorganisms are screened, compounded and loaded into the high-activity rice hull biochar, and all the raw materials are matched with one another, so that the aluminum pollution of the acid-aluminum soil can be improved, the soil fertility can be improved, the growth of plants can be promoted, the microbial community structure of the soil can be enriched, and the application prospect is great.

The invention discloses a lithium ion sieve, chemically strengthened microcrystalline glass and electronic equipment, the lithium ion sieve comprises the following components by molar percentage: 40% < = SiO2 < = 55%, 15% < = Al2O3 < = 30%, 20% < = Na2O < 30%, 0% < = MgO < = 10%; or the lithium ion sieve comprises the following components: 35% < = SiO2 < = 45%, 10% < = Al2O3 < = 20%, 30% < = Na2O < = 45%, and La2O3 and / or ZrO2, and the molar percentage of La2O3 + ZrO2 is greater than 0% and < = 25%. The lithium ion sieve provided by the invention has high thermal stability and high lithium absorption efficiency, is not easy to soften or decompose in the process of being matched with molten salt for use, is beneficial to maintaining the pH value of the molten salt, and can support a chemical strengthening process of glass ceramics at a higher temperature.

The invention discloses a high and cold gobi area soil attribute improvement method, which belongs to the technical field of soil improvement, and is realized through five steps of sampling analysis, improvement and allocation, sowing, rotary tillage and water spraying. According to the improvement method, the pH value, salinization and organic matter content of the soil in the high and cold gobi area are effectively improved by reasonably blending the materials such as the organic fertilizer and the mineral soil conditioner, and the sustainability of the soil is enhanced. The improved soil not only can support current crop growth, but also provides a more stable and long-term basis for future agricultural production. By improving the soil fertility, the crop yield and the growth quality, the improved soil brings higher economic benefits to farmers. According to the method, by adjusting the pH value and reducing the salinity of the soil, the biological availability of the soil is improved, the soil salinization process is effectively restrained, the long-term negative influence of salinization on agricultural production is avoided, and soil health can be kept.

A valuable metal recovery method includes: screening a battery slag from lithium ion battery waste; adding an acid to the battery slag; adding a sulfur compound the leachate; filtering the first processed product to obtain a first processed filtrate; adding a sulfur compound to the first processed filtrate; filtering the second processed product to obtain a second processed filtrate; adding calcium hydroxide to the second processed filtrate; filtering the third processed product to obtain a third processed filtrate; adding sodium carbonate to the third processed filtrate; filtering the processed product; heating the fourth processed filtrate; blowing carbon dioxide or adding a carbonate; and filtering the processed product, wherein a pH of the second processed product is higher than a pH of the first processed product, and a pH of the third processed product is higher than the pH of the second processed product.

The invention provides a microalgae nutrient solution and application thereof, and belongs to the technical field of agriculture. The invention provides a microalgae nutrient solution. The microalgae nutrient solution comprises nitrogen-fixing blue-green algae and photosynthetic nutrient green algae, the content of algae single cells in the microalgae nutrient solution is greater than or equal to 1.0 * 10 < 6 >. The microalgae nutrient solution provided by the invention, as a microalgae fertilizer, can significantly improve the activities of urease, sucrase and catalase in soil and reduce the activity of polyphenol oxidase in the soil; the content of alkali-hydrolyzable nitrogen in soil is increased, and the nitrogen fertilizer absorption amount of beet is improved; the richness of soil microbial communities can be increased, and the number of actinomycetes and proteobacteria is increased; growth and development of the beet can be remarkably promoted, the plant height, fresh weight, leaf number, chlorophyll content and net photosynthetic rate of the beet can be improved, accumulation of dry matter of beet tuberous roots can be promoted, timely transfer of beet growth centers can be regulated, and then the yield and sugar yield of the beet can be increased.

The invention discloses a soil matrix prepared on the basis of pyrite slag, a preparation method of the soil matrix comprises the steps that the pyrite slag, hair and sulfuric acid are mixed together for pretreatment, and the weight ratio of the pyrite slag to the hair to the sulfuric acid is (5-10): (0.5-2): (5-10). Hydrolyzed protein obtained through hydrolysis is complexed with heavy metal in the iron sulfide slag, so that the heavy metal in the pyrite slag can be well removed, the content of the heavy metal in the pyrite slag is remarkably reduced, a soil matrix prepared from the pyrite slag is suitable for plant growth, and heavy metal pollution of soil is reduced.

The invention belongs to the field of organic fertilizer and microbial fertilizer manufacturing, and particularly relates to a saline-alkali soil conditioner and application thereof in the technical field of saline-alkali soil conditioning. The invention provides a saline-alkali soil conditioner. The saline-alkali soil conditioner comprises the following components: a nitrogen fertilizer, a phosphate fertilizer and a synergist. Urea and ammonium sulfate in nitrogen fertilizer of the saline-alkali soil conditioner cooperate with acidizing rhizosphere to promote rhizosphere salinity reduction, different types of phosphatic fertilizers are mixed to improve the fertilizer efficiency of phosphatic fertilizers in salinized soil, and a carbon source and a synergist are matched to strengthen the microbial function of the soil. When the soil conditioner is applied, the activity of soil microorganisms can be stimulated, the soil acidity and alkalinity can be improved, and nutrient turnover can be promoted. When the conditioner disclosed by the invention is applied to the salinized soil, the contents of nitrogen, phosphorus and potassium at the overground part of crops can be increased, and the growth of the crops is promoted.

The invention relates to the technical field of textile dyeing, and particularly discloses an energy-saving dip dyeing method for knitted fabric. An energy-saving dip dyeing method for a knitted fabric comprises the following steps: pretreatment: immersing the knitted fabric in a pretreatment solution, soaking at 30-50 DEG C, and then washing to obtain a pretreated knitted fabric; wherein the raw materials of the pretreatment liquid comprise the following components in parts by weight: 90-110 parts of deionized water, 1-5 parts of a surfactant, 0.5-2 parts of an electrolyte, 0.5-3 parts of a solubilizer and 0.5-2 parts of a softening agent; dyeing: putting the pretreated knitted fabric into a dye solution, soaking at 20-30 DEG C, taking out, washing with water, and carrying out heat setting to obtain a dyed knitted fabric; wherein dye in the dye liquid is prepared from the following components in parts by weight: 20 to 30 parts of reactive dye, 10 to 20 parts of penetrant, 5 to 15 parts of regulator, 10 to 20 parts of reserve salt and 0.1 to 1 part of buffering agent.

This invention discloses a method for the biological drying of sludge, comprising the following steps: baking biomass materials, mixing the resulting baked product with sludge, biochar materials, and a conditioner for biological drying, thereby completing the sludge drying process. In this invention, by biologically drying the mixture of baked product, sludge, biochar materials, and conditioner, not only can the self-generated heat within the system be used to effectively dewater the sludge in a very short time, but the bioavailability of the microbial carbon source can also be improved, effectively reducing the generation of polluting gases. This method can effectively reduce the emission of polluting gases while achieving rapid dewatering. It has advantages such as simple process, low treatment cost, low energy consumption, high drying efficiency, good dewatering effect, low polluting gas production, and low content of toxic and harmful components in the dried product. It can solve the problems of biomass resource waste and pollution, achieve sludge reduction and resource utilization, and has high returns and good application prospects.

The present invention discloses an oilfield three-phase separation process and separation system, belonging to the field of oilfield technology. The process includes the following steps: 1. Density difference separation, inputting oilfield produced liquid or oilfield sewage into a three-phase separator, under the action of density difference, oil and natural gas in the oilfield produced liquid or oilfield sewage float up, and water flows downward; 2. Gas flotation, introducing natural gas into the three-phase separator, and the natural gas floats tiny bubbles, oil droplets, and mechanical impurities during the rising process; 3. Gas phase circulation, collecting the natural gas gas phase discharged from the three-phase separator and removing carbon dioxide and hydrogen sulfide, and then using it as the input gas of step 2 for recycling. The present invention does not need to heat the oil well produced liquid or oily sewage in advance, and can be treated at room temperature. Through the invented process, the oil content of the sewage reaches the recharge standard, the pH of the water body is stabilized, and new scale is avoided while descaling, which provides convenience for subsequent water treatment.

The present disclosure relates to a method for detecting vitamin D or a steroid hormone and a blood sample pretreatment kit. The method for detecting vitamin D in blood comprises pretreating a blood sample to obtain a test sample, and detecting the test sample by liquid chromatography tandem mass spectrometry, wherein the pretreatment comprises: adding an internal standard solution and a magnetic bead reagent to the blood sample to obtain a mixed solution and incubating to allow the target analyte to bind to the surface of the magnetic beads; separating the magnetic beads combined with the target analyte; and eluting the target analyte from the surface of the magnetic beads to obtain the test sample, wherein the mixed solution comprises methanol in an amount of 45vol% to 60vol%, or ethanol in an amount of 30vol% to 50vol%. The method can significantly reduce non-specific adsorption of magnetic beads, and improve the accuracy and sensitivity of detection.

The invention discloses a moderate-severe saline-alkali soil treatment method which comprises the following steps: soil prediction and pretreatment: predicting the depth of an impermeable interlayer, digging out heavy clay outside the soil, discharging water and standing, and determining the position of the impermeable interlayer through a measuring marker post; precisely measuring and scribing the treatment area, controlling the scribing interval size, and laying white powder marks; soil plowing and purification liquid application: deeply plowing a lineation area by a soil plowing machine, and breaking hardening of a plowing ground layer in combination with deep scarification; the water is mixed with the gypsum and the ardealite to obtain purified liquid, and the purified liquid is conveyed to the ploughing area; the saline-alkali soil conditioner has the beneficial effects that the saline-alkali soil quality can be remarkably improved, the salt content is reduced, the soil acidity and alkalinity are improved, and the soil fertility and crop growth conditions are improved; by introducing novel materials such as iron-based biochar, the heavy metal adsorption capacity and pollution remediation capacity of the soil are further enhanced, and powerful support is provided for sustainable utilization of the saline-alkali soil.

This invention provides the application of *Bifidobacterium breve* in the preparation of products for treating gastric ulcers and gastric inflammation caused by *Helicobacter pylori*, belonging to the field of microbial technology. The *Bifidobacterium breve* NKU BB1-2 of this invention, with accession number GDMCC NO: 65956, can antagonize *Helicobacter pylori* colonization and alleviate the aggravation of gastric ulcers caused by *Helicobacter pylori*. In vitro, *Bifidobacterium breve* NKU BB1-2 exhibits good antagonistic ability against *Helicobacter pylori*, significantly inhibiting its colonization and growth. Animal experiments show that *Bifidobacterium breve* NKU BB1-2 can alleviate the aggravation of gastric ulcers caused by *Helicobacter pylori* infection in vivo, manifested as reduced gastric mucosal damage, reduced gastric inflammation, and increased gastric pH. Furthermore, *Bifidobacterium breve* NKU BB1-2 can significantly enhance gastric microbial diversity, regulate and improve the gastric microbial structure, and assist in antagonizing and eradicating *Helicobacter pylori* infection.

This invention relates to the technical field of SCR catalysts, and discloses a method for preparing a honeycomb-type ultra-low temperature SCR catalyst and its application, comprising the following steps: Step 1, pretreating cordierite by immersing it in an acidic solution to obtain pretreated cordierite; Step 2, adding manganese salt, cerium salt, and iron salt to water to prepare a homogeneous mixed solution; Step 3, mixing titanium sol and aluminum sol to prepare a composite sol; Step 4, slowly adding the mixed solution dropwise to the composite sol while stirring, and continuing stirring after the addition is complete to obtain a coating solution; Step 5, immersing the pretreated cordierite in the coating solution, then removing it, blowing away the liquid in the cordierite pores with compressed air, and then drying and calcining; this step can be repeated several times until a honeycomb-type ultra-low temperature SCR catalyst with a suitable loading of active components is obtained. The catalyst of this invention can achieve ultra-low temperature denitrification while avoiding problems such as uneven loading and easy peeling.

The present invention proposes an acid-reducing and fertilizing improver for red soil rice fields, a preparation method and an improvement method thereof, and belongs to the technical field of soil improvement. After the straw is carbonized, it is added to a urea solution, sodium alginate and carboxymethyl chitosan are added, and an injection pump is dripped into a calcium chloride solution drop by drop to obtain a gel ball, the surface of which is modified by a silane coupling agent, hydrolyzed, added to a solution containing microorganisms and biological enzymes, and freeze-dried to obtain an acid-reducing and fertilizing improver for red soil rice fields. The acid-reducing and fertilizing improver for red soil rice fields prepared by the present invention can not only effectively increase the soil pH value, improve soil fertility, improve soil structure, and promote the downward leaching of salt-damaging ions, but the straw powder can also improve the soil CO2 bias, soil air, and soil quality, and has a good slow-release effect and broad application prospects.

This invention discloses a method for the comprehensive utilization of calcium and magnesium solution and CO2, comprising the following steps: S11: using high-salt calcium and magnesium wastewater and CO2 tail gas as raw materials, the high-salt calcium and magnesium wastewater contains CaCl2 and MgCl2, water-soluble amine is added to the high-salt calcium and magnesium wastewater and mixed, and CO2 tail gas is introduced to carry out a mineralization reaction, generating calcium carbonate precipitate, water-soluble amine hydrochloride and magnesium bicarbonate; S12: solid phase calcium carbonate is obtained by solid-liquid separation, oil-soluble amine is added to the separated liquid phase, HCl in the water-soluble amine hydrochloride is extracted, the water-soluble amine is regenerated, and oil-soluble amine hydrochloride and magnesium carbonate trihydrate precipitate are generated; S13: after phase separation, the aqueous phase is separated by solid-liquid separation to obtain liquid phase water-soluble amine and solid phase magnesium carbonate trihydrate, and the oil-soluble amine hydrochloride in the oil phase is pyrolyzed to obtain regenerated oil-soluble amine and HCl gas. This invention utilizes a water / oil dual-phase amine-enhanced calcium-magnesium solution mineralization CO2 and an extraction-pyrolysis synergistic regeneration cycle process to achieve harmless treatment and resource utilization of both calcium-magnesium-containing high-salt wastewater and CO2 tail gas.

The invention provides a special organic fertilizer for dendrocalamus brandisii and a preparation method thereof, and belongs to the technical field of organic fertilizers. The special organic fertilizer for dendrocalamus brandisii provided by the invention is prepared by taking the tobacco stem powder, the fish protein, the turf and the animal waste as main raw materials and fully fermenting and decomposing by utilizing zymophyte microorganisms, is rich in humic acid and various beneficial microorganisms, can increase soil organic matters and microbial populations after being applied, and can improve soil and increase the utilization rate of the fertilizer; the fertilizer has the remarkable effects of saving cost, improving efficiency and improving plant quality, is an ideal fertilizer for planting high-quality dendrocalamus brandisii, and humic acid contained in the fertilizer has high ion exchange capacity and adsorption capacity, so that soil salt damage can be relieved, volatilization loss of nitrogen is reduced, and the nitrogen absorption rate is remarkably increased.

This invention discloses a method for restoring the electrolyte in a zinc-bromine flow battery, belonging to the field of flow batteries. After debromination of the zinc-bromine flow battery electrolyte, a carbonate additive is added. This additive is stable in the zinc-bromine battery electrolyte, does not participate in the charge / discharge reaction during battery charging and discharging, regulates the electrolyte pH, and does not introduce new impurities into the electrolyte. After long-term battery operation, to ensure stable battery operation, the electrolyte needs to be debrominated periodically. When the battery is in standby mode, the large amount of elemental zinc deposited at the negative electrode reacts with hydrogen ions in the electrolyte, thereby reducing capacity and affecting the battery's coulombic efficiency. When the electrolyte pH drops significantly, a small amount of additive is added to the solution. The carbonate hydrolysis consumes the hydrogen ions in the electrolyte, thereby increasing the electrolyte pH value, reducing the consumption of elemental zinc at the negative electrode during standby, and improving the battery's standby performance.

The invention relates to the technical field of soil saline-alkali soil improvement, and discloses a seasonal permafrost region soda saline-alkali soil improvement and crop cultivation method, which comprises the following steps: (1) digging a catchment lake, a deep ditch and a plurality of shallow ditches in saline-alkali soil to be improved, enabling the plurality of shallow ditches to be respectively connected with the deep ditch, enabling the deep ditch to be communicated with the catchment lake, and enabling the deep ditch to be communicated with the catchment lake; the deep ditch is communicated with the catchment lake, the depth L1 of the deep ditch meets the condition that L1 = h1 + delta h1 + h01, and the ratio of the depth of the deep ditch to the depth of the shallow ditch is 1.5-3.5; (2) digging at least one vertical shaft between two adjacent shallow trenches, wherein the ratio of the depth of the vertical shaft to the depth of the deep trench is 0.7-1.5; and (3) injecting water into the soil between the shallow ditches. According to the method, the soil structure can be improved, the soil acid-base property can be adjusted, the micro-ecological environment of the soil can be improved, and crops can normally grow in a good soil environment.

The invention provides a recarburization and acid reduction method for strengthening formation of brick red soil mineral binding state organic carbon. The recarburization and acid reduction method comprises the following steps: S1, constructing a functional microbial population; S2, activating and modifying minerals; S3, preparing a multi-layer gradient coating composite preparation; according to the invention, a synergistic construction method of'functional strain selection + specific phage regulation 'is adopted for the first time, and the selected strains are all strains with strong adaptability to the laterite acidic habitat, and can simultaneously realize multiple functions of microbial residual carbon formation, extracellular polymeric colloid synthesis, iron reduction coprecipitation and the like. According to the method, multiple targets of efficient enrichment of mineral binding state organic carbon, especially short-sequence mineral binding state organic carbon, remarkable improvement of soil pH, great increase of corn yield and the like are achieved at the same time, comprehensive benefits are remarkable, and the method is environmentally friendly and high in sustainability.

The invention belongs to the field of wastewater treatment, and particularly relates to an in-situ treatment method for acidic water seeping from a sulfur-containing waste rock pile, which comprises the following steps: drilling and distributing holes in the sulfur-containing waste rock pile to be treated; a sterilizing agent is injected into the drill hole for sterilization treatment, alkali liquor is injected into the drill hole for alkali treatment after sterilization treatment, the drill hole is washed after alkali treatment, and a pretreated drill hole is obtained; the pretreated drill holes are filled with bacteria-loaded porous carbon and ferrous salt, then the holes are sealed, and then in-situ treatment is carried out on the acid water seeping from the sulfur-containing waste rock heap to be treated; the bacteria-loaded porous carbon is obtained by compounding and modifying raw materials including porous carbon, an organic carbon source, activated sludge and sulfate; the activated sludge contains sulfate reducing bacteria and iron reducing bacteria. The method can adapt to hole treatment characteristics, and can realize in-situ long-acting treatment of the acidic water seeping from the sulfur-containing waste rock heap.

The invention relates to the technical field of battery thermal management, in particular to a battery cooling liquid, a preparation method thereof and a liquid cooling pipeline with a fire-fighting function. According to the battery cooling liquid, the volume ratio of an aqueous solution of bicarbonate to ethylene glycol is 1: 1, the mass of bicarbonate in every 100g of water is 4-6g, and bicarbonate is selected from at least one of sodium bicarbonate and potassium bicarbonate. The preparation method comprises the following steps: under a closed condition of 10 DEG C, firstly adding bicarbonate into water, fully stirring, filtering a precipitate, mixing with ethylene glycol, fully stirring, filtering the precipitate again, and sealing and storing at 10-30 DEG C. The invention discloses a liquid cooling pipeline with a fire-fighting function. The liquid cooling pipeline comprises a liquid cooling main pipeline, a liquid cooling branch pipeline and cooling liquid, the cooling liquid provided by the invention not only has small corrosion to the liquid cooling pipeline, but also can act together with aluminum sulfate designed on the liquid cooling branch pipeline to play a fire extinguishing function, and a fire extinguishing system does not need to be arranged in the battery pack, so that the cost is low, and the production efficiency is high.

The invention discloses a traditional Chinese medicine formula for softening hyperplasia scars and a preparation method thereof. The formula is composed of manis pentadactyla, salvia miltiorrhiza, safflower, leech, peach kernel, ligusticum wallichii, pseudo-ginseng, frankincense, myrrh, curcuma zedoary, rhizoma sparganii, golden head centipede, lucid ganoderma, quick lime, white mulberry root-bark, cocklebur fruit, wahlenbergia marginata, malva verticillata, sedum sarmentosum, mazus japonicus, selfheal, mature vinegar, alcohol and other medicinal materials. Through accurate proportioning and scientific preparation, the formula can effectively soften hyperplastic scars and promote repair and regeneration of skin tissues, and has the characteristics of mildness, no irritation and no obvious side effects. The preparation method comprises the steps of raw material preparation, material mixing, forming, preparation and the like. The traditional Chinese medicine composition has remarkable superiority in the aspects of softening scars, relieving pruritus and improving skin texture, is suitable for repairing various types of scars after operation, burn and the like, and has a wide application prospect.

The application discloses a high-temperature-resistant TPU glue for aircraft packaging and a preparation process thereof, and belongs to the technical field of TPU glue.The phthalic anhydride polyester dihydric alcohol is vacuum dehydrated, cooled, 4,4'-diphenyl methane diisocyanate is added under a nitrogen atmosphere, a catalyst is added, and stirring is conducted to obtain a polyurethane prepolymer; the modified silicon dioxide is added into N,N-dimethylformamide, and ultrasonic treatment is conducted to obtain a modified silicon dioxide solution; the polyurethane prepolymer is taken, the modified silicon dioxide solution is slowly added, and reaction is conducted to obtain a silicon dioxide grafted prepolymer; the 1,4-butanediol is vacuum dehydrated, the silicon dioxide grafted prepolymer is added, stirring is conducted, a flame retardant is added, banburying is conducted, a plate is pressed, and the high-temperature-resistant TPU glue is obtained.Compared with a traditional soft segment, the phthalic anhydride polyester dihydric alcohol is added to introduce a benzene ring rigid structure into the material, the glass transition temperature and the heat distortion temperature of the soft segment are improved, and the mechanical properties and the thermal stability of the material are improved.

This application relates to the field of Cd-containing wastewater treatment technology, and discloses a wastewater treatment agent, its preparation method, and its application. The preparation method of the wastewater treatment agent of this application includes the following steps: S1, crushing and screening waste concrete to obtain concrete particles; S2, washing and drying the concrete particles; S3, carbonizing the dried concrete particles in a sealed environment to obtain the wastewater treatment agent. The wastewater treatment agent of this application is prepared by the above method, and the prepared wastewater treatment agent can be applied to the field of Cd-containing wastewater treatment technology. The wastewater treatment agent prepared by this application is low in cost and can effectively remove Cd from wastewater. 2+ It removes substances quickly and can be reused.

This invention relates to the field of soil remediation, and more particularly to a highly efficient remediation agent for acidic soils and its preparation method. The remediation agent consists of hydroxyapatite-modified biochar, MOF biochar composite, and lime. Compared with existing technologies, this invention not only regulates soil acidity but also provides abundant nutrients and improves soil structure. Lime can rapidly neutralize hydrogen ions in acidic soils, quickly increasing soil pH, enabling the remediation agent to improve soil acidity in a short time while achieving both short-term and long-term remediation effects. The raw materials for biochar preparation include agricultural waste such as cow dung, which are widely available and inexpensive, realizing the resource utilization of waste. Lime is also a common soil conditioner, relatively inexpensive and readily available, helping to reduce the overall production cost of the remediation agent and improve its economic feasibility and application scope.

The invention provides electron-rich biochar as well as a preparation method and application thereof, and belongs to the technical field of solid waste biomass utilization. The preparation method of the electron-rich biochar provided by the invention comprises the following steps: performing pyrolysis carbonization on a biomass raw material under an anaerobic condition to obtain a biochar precursor; mixing the biochar precursor, a reducing agent and water, and reducing to obtain the electron-rich biochar, the reducing agent is prepared from one or more of KHB4, NaBH4, LiBH4 and LiAlH4. The reducing agent can reduce the abundance of functional groups-NH2 / -OH on the surface of the biochar, and also can introduce electron-rich (orbital) high-energy alkyne bonds, so that the specific capacitance value of the biochar is increased, and an electron-rich soil capacitor is obtained; the reducing agent reduces a diffusion impedance layer on the surface of the biochar and charge transfer resistance in the biochar, the biochar rich in pi-electronic chemical structures is prepared, saponin substances are eliminated, and continuous cropping obstacles are effectively relieved.