147 results about "Modified zeolite" patented technology

The invention relates to the technical field of fabrics, in particular to a cool-feeling long cilia strip and a preparation method thereof.The cool-feeling long cilia strip is composed of cool-feeling fibers and a long cilia strip base material and is characterized in that the cool-feeling fibers comprise a core layer, a functional skin layer and an outer thin skin layer; the functional skin layer is prepared from the following components: a sulfonated copolyester matrix, catechol grafted master batch, surface modified zeolite nano powder, an anti-hydrolysis agent and an antioxidant, and the functional skin layer also contains introduced Zn < 2 + > and Mg < 2 + >. Zn < 2 + > and Mg < 2 + > which are stably combined on anchoring points of sulfonated copolyester are subjected to hydration endothermic reaction when being in contact with water, so that a cool feeling is generated; the surface modified zeolite nano powder synergistically enhances moisture absorption and water temporary storage by virtue of the specific surface area, and continuously provides water for an ionized hydration reaction to prolong and amplify a cool feeling effect; the catechol grafting structure endows the fiber with antibacterial performance, and long-term stability of the structure is ensured through an interface enhancement effect. And the outer layer hydrophilic polyester is matched, so that the product has comfort, durability and functionality.

The invention provides high-caking low-dust tofu cat litter and a preparation method thereof.The high-caking low-dust tofu cat litter is prepared from, by mass, 40%-60% of bean dreg fiber, 15%-25% of antibacterial high-capacity ammonia adsorption modified zeolite, 8%-15% of a composite binder, 1%-2% of compound vegetable gum, 1%-5% of a hydrophilic coating agent, 0.5%-3% of a food-grade dust suppressant and the balance water. According to the invention, agglomeration is enhanced through composite bonding and zeolite embedding, dust is reduced through a triple dust control process, long-acting deodorization and antibiosis are realized by virtue of modified zeolite, the finished product block mass is free of looseness, low in dust, deodorant and antibacterial, and the process is simple, convenient, easy to industrialize, capable of being naturally degraded and suitable for daily cleaning and nursing scenes of family pet cats.

The invention discloses microcapsule self-regeneration-based long-acting formaldehyde-removing cement and a preparation method thereof, and belongs to the field of building materials and environmental functional materials. The material is composed of Portland cement clinker and a functional composite additive, wherein the additive comprises Zn < 2 + > modified zeolite, a manganese-based catalyst, a pH-responsive sustained-release microcapsule and alpha-semi-hydrated gypsum. According to the invention, through the cooperation of zeolite selective adsorption, non-photocatalytic oxidation of the manganese-based catalyst in an alkaline environment and pH-triggered microcapsule self-regeneration, an adsorption-catalysis-regeneration function closed loop is formed, efficient and lasting removal of formaldehyde under a dark condition is realized, and the mechanical properties of a cement matrix are not damaged. According to the preparation method, the functional components are pre-compounded and then co-ground with the cement clinker, the process is simple, and the preparation method is suitable for industrial production.

This invention discloses an in-situ three-dimensional bioremediation method for slightly polluted water bodies. The method involves collecting a mud-water mixture from the water body to be treated, enriching and culturing it, and collecting the settled sludge. Culture medium II is added to the settled sludge for acclimatization and cultivation to prepare a biological agent. This biological agent is then added to a mixed solution of polyvinyl alcohol-hydrated calcium silicate-fulvic acid (PVA-CSH-FA) or PVA-modified zeolite-FA to prepare an immobilized biological carrier that can slowly release or adsorb calcium ions from the water. Calcium peroxide packing is also prepared to provide oxygen. The immobilized biological carrier packing and calcium peroxide packing are respectively fixed in the upper and lower layers of an ecological sedimentation bed, which is then placed in the slightly polluted water body to achieve in-situ three-dimensional bioremediation. The calcium-precipitating bacterial biological agent obtained through enrichment and acclimatization in this invention, when immobilized and mixed with the carrier material, efficiently and simultaneously removes pollutants such as nitrogen, phosphorus, organic matter, and heavy metals from slightly polluted water bodies.

The application provides a zinc ion modified zeolite and a preparation method and application thereof. 2+ The modification of the zeolite by the zinc ion can balance the negative charge on the zeolite, so that the modified zeolite has reduced electrostatic repulsion to anions and can have more groups capable of combining with phosphates, and thus has the ability to remove phosphates. 2+ In the process of dynamically adsorbing ammonia nitrogen and phosphates in simulated and actual wastewater in a transfer station, the Thomas model is used for fitting. 2+ The adsorption capacity of the modified zeolite to the simulated water reaches 4.49 mg NH3-N / g and 3.04 mg P / g, and the adsorption capacity of the modified zeolite to the actual water reaches 2.35 mg NH3-N / g and 3.63 mg P / g. 2+ The modified zeolite has good adsorption effect on nitrogen and phosphorus in the continuous flow treatment of the actual water.

The invention relates to a hydrocarbon adsorption material in a cold start stage of a diesel vehicle and a preparation method and application of the hydrocarbon adsorption material in the technical field of environmental catalysis and tail gas purification, the adsorption material comprises an active component and a carrier material, the active component is Ag, the carrier material is ZSM-5 zeolite with an MFI topological structure, and the mass fraction of the active component Ag is 2.0 wt%. The carrier ZSM-5 is loaded with Ag species through a two-step ion exchange method, ammonium salt pretreatment and silver ion exchange are included, and after centrifugation, drying and air atmosphere calcination, the high-performance material for hydrocarbon adsorption in the cold start stage of the diesel vehicle is finally prepared. The prepared adsorption material has the advantages of being high in silver species dispersity, large in low-temperature adsorption capacity and good in matching of a high-temperature desorption window and DOC activation temperature, compared with traditional silver modified zeolite, the adsorption capacity is increased by 125.7% and 79.6% respectively, desorption peaks are concentrated and matched in temperature, the HCs rejection rate in the cold start-up stage is larger than or equal to 90%, and the adsorption material has the remarkable application value and is suitable for popularization and application. And upgrading and optimization of a diesel vehicle tail gas purification technology can be promoted.

The present application relates to the technical field of compound fertilizer, in particular to a kind of compound fertilizer for saline-alkali soil and preparation method thereof, the compound fertilizer includes the following weight parts raw materials: cow dung 35~40 parts, 15~20 parts sodium humate, modified zeolite molecular sieve agent 7~11 parts, 4~7 parts based on shell powder regulator, 3~5 parts trace elements and 4~7 parts inorganic fertilizer.The present application is prepared by the compound fertilizer for saline-alkali soil using cow dung, sodium humate, trace elements and inorganic fertilizer, while adding modified zeolite molecular sieve agent and shell powder-based regulator to optimize each other, through the synergistic effect of raw materials, the compound fertilizer can optimize the yield and growth quality of plant in saline-alkali soil, and can adjust the physicochemical properties of soil.

The invention provides mineral thermal spring water as well as a preparation method and application thereof, and relates to the technical field of cosmetics. The preparation method comprises the following steps: pretreating thermal spring water through a multi-medium filter layer to obtain liquid 1; mixing the liquid 1 with modified zeolite at 20-28 DEG C, heating to 40-50 DEG C, and filtering to obtain liquid 2; enabling the liquid 2 to pass through a polyamide composite nanofiltration membrane with the interception amount of 200Da to obtain liquid 3; and sterilizing the liquid 3 to obtain the mineral thermal spring water. Through a specific preparation method, on the premise that other substances are not introduced, the soothing effect and the microcirculation promoting effect of the thermal spring water are remarkably improved, and a basis is provided for wide application of the thermal spring water to the field of cosmetics.

The invention discloses a water retention and disease prevention type Chinese cabbage seedling culture substrate based on a mineral composite material and a preparation method thereof, and relates to the technical field of agricultural seedling culture, the Chinese cabbage seedling culture substrate comprises the following materials: modified zeolite, activated vermiculite, decomposed straw powder, ground phosphate rock, decomposed sheep manure, sepiolite powder, a sodium polyacrylate water retention agent and a functional agent, the modified zeolite, the activated vermiculite, the sepiolite powder and the sodium polyacrylate water-retaining agent are added to form a high-efficiency synergistic effect, so that the balance of water retention, fertilizer retention and air permeability of the matrix is realized, stable water and nutrients are continuously supplied to root systems of Chinese cabbage seedlings, and the utilization efficiency of water and fertilizer is remarkably improved; the functional agent, the decomposed straw powder and the decomposed sheep manure are added to form an efficient synergistic effect, the absorption efficiency of nutrients in the matrix is improved, meanwhile, functional bacterium metabolites can promote root development, and finally, the synergistic growth promoting effect of sufficient nutrient supply and efficient nutrient absorption is achieved while it is guaranteed that the matrix is free of disease hidden danger.

The invention belongs to the technical field of adsorption materials, and particularly relates to a coupling adsorption material containing zeolite and biomass charcoal as well as a preparation method and application of the coupling adsorption material. The coupling adsorption material is composed of modified zeolite, modified coconut shell biomass charcoal and a silane coupling agent interface bonding layer. After the modified zeolite is modified by three steps of hydrochloric acid, ammonium oxalate and sodium chloride, skeleton exchange sites are unified to be Na < + > type, and the NH < 4 + > interception capability is enhanced; after the modified coconut shell biomass charcoal is oxidized by nitric acid and modified by zirconium oxychloride and phosphoric acid, ammonia nitrogen is removed through multi-mechanism synergy; after two-phase coupling, the ammonia nitrogen removal capability is superior to that of a single component. The silane coupling agent interface bonding layer effectively buffers interface thermal stress generated by mismatching of two-phase thermal expansion coefficients in the high-temperature regeneration process, inhibits microcrack initiation and expansion, guarantees the adsorption capacity stability after multiple regeneration cycles, and prolongs the service life of the material.

The application discloses a kind of low-carbon composite cementitious material for deep foundation pit engineering and preparation method thereof, belong to building material technical field.The low-carbon composite cementitious material for deep foundation pit engineering, including following weight parts raw materials: 70-90 parts of slag, 5-10 parts of cement, 10-30 parts of phosphogypsum, 5-20 parts of modified secondary aluminum ash, 2-10 parts of modified 5A zeolite, 5-10 parts of organic curing agent, 1-5 parts of carbide slag, 0.03-0.2 parts of alcohol amine early strength agent, 0.5-8 parts of potassium dihydrogen phosphate, 2-8 parts of magnesium oxide, 2-3.5 parts of acid activator, 20-50 parts of water, by making full use of industrial waste slag, secondary aluminum ash, carbide slag, phosphogypsum, reduce resource waste and environmental pollution, convert industrial solid waste into environmental protection building material, realize the diversification of product, functionalization, green, can replace traditional reinforced concrete material, significantly reduce the carbon emission in deep foundation pit engineering, help building industry low-carbon transformation.

The application discloses a bacteriostatic and deodorizing zeolite cat litter and a preparation method thereof, and belongs to the technical field of zeolite cat litter preparation. The bacteriostatic and deodorizing zeolite cat litter is composed of the following components in parts by weight: 55-75 parts of modified zeolite, 3-6 parts of bacteriostatic gel, 2-5 parts of adhesive, and 1-3 parts of filler. The modified zeolite is prepared from sulfamic acid, N,N-dimethylformamide, lignocellulose and zeolite, and the bacteriostatic agent is prepared from four-arm polyethylene glycol, succinic anhydride, triethylamine, N-hydroxyl glutarimide, 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride and polylysine. The zeolite cat litter prepared by the method has excellent water absorption, antibacterial property and deodorizing property.

The invention discloses a method for treating aquaculture wastewater based on a persulfate advanced oxidation technology, which comprises the following steps: (1) putting prepared secondary modified zeolite into a polycarboxylate superplasticizer, stirring, then adding a solution containing Fe < 2 + > and / or Fe < 3 + >, carrying out ultrasonic treatment, then separating out a solid product, and calcining in a protective atmosphere to obtain a modified zeolite precursor; and then cooling to room temperature to obtain the three-stage modified zeolite. And (2) adding the mixture into alkali liquor for heating treatment, then mixing the obtained solid product with a calcium nitrate solution for hydrothermal reaction, and then washing and drying the obtained solid product to obtain the heterogeneous catalyst. And (3) adding persulfate and a heterogeneous catalyst into the breeding wastewater for wastewater treatment. Heterogeneous catalysis is adopted to promote persulfate to release free radicals, so that the problem of waste caused by difficulty in recycling a catalyst is solved, and the problem of secondary pollution of wastewater caused by the catalyst is favorably avoided.

The application discloses a production process of high-potassium base compound fertilizer, which comprises the following steps: S1, raw material pretreatment: crushing potassium feldspar to 200 meshes, mixing with 5% sulfuric acid at a mass ratio of 1:3, calcining at 120-130 DEG C for 2-3 hours, washing until the pH is 6.5-7.0, and drying to obtain potassium feldspar activated powder; S2, putting potassium citrate solution, calcium citrate solution, potassium feldspar activated powder, trace element organic acid salt solution, urea, modified zeolite and binder into a high-speed mixer in proportion, uniformly stirring, adopting high-tower granulation to obtain base material particles; S3, drying the base material particles, removing the particles with a diameter less than 2.5 mm, spraying a plurality of composite films on the surface of the base material particles to coat, and drying to obtain coated base material particles; and S4, spraying bacillus subtilis agent on the surface of the coated base material particles, and low-temperature drying to obtain the high-potassium base compound fertilizer. The high-potassium base compound fertilizer produced by the application has high nutrient components, long fertilizer efficiency, small environmental pollution, and can improve the soil environment and improve the crop yield.

The invention discloses a fertilizer synergistic modifier and a processing method thereof. The fertilizer synergistic modifier comprises 40-60 parts of a nutrient regulation and intelligent controlled release component; 1 to 15 parts of a photosensitive synergistic component; 25-45 parts of a carrier, a structure auxiliary agent and a coating material; wherein the nutrient regulation and control and intelligent controlled release component comprises a urease inhibitor, such as N-butyl thiophosphoric triamide (NBPT), a nitrification inhibitor, such as 3, 4-dimethyl pyrazole phosphate (DMPP), humic acid or a salt thereof, such as potassium humate, polyglutamic acid, a seaweed extract, a phosphate-solubilizing / potassium-solubilizing microbial agent, such as bacillus subtilis, and the like. And modified zeolite or mesoporous silica loaded with nitrogen, phosphorus, potassium and trace elements. The invention relates to the technical field of agricultural chemical fertilizers, and provides an intelligent controlled-release fertilizer, which realizes the synergistic interaction of external maintenance, internal strong absorption and environmental adaptation through systematic compounding of mature synergistic components, nano materials with clear photochemical characteristics and intelligent controlled-release carriers, and aims to significantly improve the fertilizer utilization rate, crop yield and stress resistance.

The invention relates to the field of mortar materials, in particular to passive humidifying, antibacterial and decorative integrated mortar and a preparation method of the passive humidifying, antibacterial and decorative integrated mortar. The functional materials comprise modified zeolite and Co-MOFs, the mortar prepared by the invention is a good humidity control material in engineering, also has relatively high antibacterial activity, has multiple functions of passive humidity control, antibiosis, decoration and the like, and can improve the indoor comfort of a building and realize energy conservation and consumption reduction of the building.

The invention discloses a treating agent for in-situ remediation of aquaculture wastewater and a preparation method of the treating agent, and belongs to the field of aquaculture wastewater treatment. The treating agent is prepared from, by mass, 20-40 parts of hydroxylated montmorillonite, 10-20 parts of diatomite loaded iron-copper composite particles, 30-50 parts of chitosan-sodium alginate composite microspheres, 5-15 parts of modified zeolite powder, 1-3 parts of EDTA disodium and 2-5 parts of polyglutamic acid, the mass ratio of iron to copper in the diatomite loaded iron-copper composite particles is 5: 1, and the loading capacity is 15-20 wt.%. The preparation method comprises the following steps: mixing an adsorption matrix, adding catalytic and auxiliary components, and carrying out composite molding, wherein the addition amount is 0.5-2g / L. The treatment agent efficiently removes COD (Chemical Oxygen Demand), ammonia nitrogen, total phosphorus and heavy metals by virtue of an adsorption-catalysis-slow release synergistic effect, the 30-day removal rate reaches 90% or above, the action period is long, secondary pollution is avoided, the treatment agent is safe to aquatic organisms, growth is promoted, many problems in the prior art are solved, and the treatment agent is suitable for an in-situ remediation scene.

The invention provides an MICP-based sandy soil reinforcement stability evaluation method, device, equipment and medium, and relates to the technical field of soil reinforcement, and the method comprises the following steps: respectively adding an ammonium standard solution into sodium modified zeolite and alkalization modified fly ash to determine the ammonia nitrogen removal rate, and screening candidate mass ratios; on the basis of the candidate mass ratio, the sodium modified zeolite and the alkalized modified fly ash are doped into the standard sand columns correspondingly, the bacterial liquid and the cementing liquid are injected for an MICP reaction, and a solidified sand column is obtained; the dry density and the calcium carbonate generation amount of the multiple solidified sand columns are measured, an unconfined compressive strength experiment is conducted, and an unconfined compressive strength value is obtained; the distribution form of calcium carbonate crystals is observed through a scanning electron microscope for the multiple solidified sand columns, and gelling substances are analyzed through X-ray diffraction; and judging an unconfined compressive strength value based on a microscopic analysis result, and when the unconfined compressive strength value meets a sandy soil solidification threshold value, outputting a solidification grade and a sandy soil strength value to finish stability evaluation. The problem that sandy soil reinforcement is not stable is solved.

The invention provides a soil conditioner for heavy metal passivation and a preparation method thereof, and belongs to the field of soil conditioners. The soil conditioner is prepared from the following raw materials in parts by weight: 50-70 parts of modified mushroom residues subjected to pre-fermentation treatment, 3-8 parts of sodium alginate, 15-25 parts of modified zeolite, 5-10 parts of humic acid, 5-10 parts of calcium carbonate powder, 1-2 parts of a compound functional microbial agent and 0.5-3 parts of a sulfydryl-amino bifunctional group modified silane coupling agent derivative. Through the unique raw material composition design, a multi-stage synergistic effect system is systematically constructed, so that the rapid chelating efficiency, the deep fixing capability and the long-term storage stability of the soil conditioner on heavy metals are remarkably improved.

The invention relates to the technical field of sewage treatment, and particularly discloses a constructed wetland and stabilization pond combined sewage treatment method and system based on tidal flow. Specific compositions contained in the system mainly comprise a composite filler and an immobilized denitrifying bacterium agent. The composite filler is prepared from gravel, modified zeolite, biochar and a calcium-based phosphorus removal agent according to a specific mass part ratio; the immobilized denitrifying bacterial agent takes sodium alginate-biochar microspheres as a carrier to load denitrifying bacteria. The preparation method comprises the following steps: sewage is pretreated and then enters the stabilization pond for primary treatment, then enters the constructed wetland for tidal operation, anaerobic strengthening, aerobic reoxygenation and filler regeneration, and finally is purified and recycled. The composition provided by the invention can provide a synergistic effect of efficient adsorption, chemical precipitation and biodegradation for pollutant removal, and has the advantage of improving the nitrogen and phosphorus removal efficiency and operation stability of a system; in addition, the preparation method disclosed by the invention has the advantages of mature process, controllable parameters and easiness in large-scale production.

This invention discloses an anhydrous deoxidizer, comprising, by weight, 10-20 parts of a hydroxyl-terminated polybutadiene-maleic anhydride compound, 10-20 parts of modified zeolite, 15-25 parts of modified silica gel, and 45-55 parts of polyethylene terephthalate. The modified silica gel is prepared from silica gel, sorbitol, bis(3-triethoxysilanepropyl) carbonate, and alumina. The modified zeolite is prepared from zeolite, 1-chloroethylcyclohexyl carbonate, maleimide-L-valine-L-citrulline-p-aminobenzyl alcohol, and N,N-dimethylformamide. The anhydrous deoxidizer provided by this invention exhibits excellent deoxidation performance and efficiency.

The application discloses a preparation method of modified zeolite, functional concrete and a preparation method thereof, and belongs to the technical field of building functional materials. The preparation method comprises the following steps: after sequentially performing activation treatment and hole expansion treatment on a zeolite molecular sieve, a pretreated substrate rich in mesopores is obtained; the pretreated substrate is placed in a reactor, inert carrier gas and steam of a hydrophobic modifier are introduced, gradient vapor deposition treatment is performed, washing, drying are performed, and modified zeolite is obtained; and the hydrophobic modifier is a silane containing a methyl group. The modified zeolite prepared by the preparation method has a core-shell structure of 'external hydrophobicity and internal smoothness', the water contact angle can reach more than 110 DEG, the micropore volume retention rate is more than 80%, the pore blockage problem caused by the traditional modification method is solved, and the CO2 adsorption and mineralization efficiency of the zeolite in a high-humidity environment of concrete can be significantly improved.

The invention relates to a composite adsorption material applied to CO2 gas-liquid separation and a preparation method of the composite adsorption material, and belongs to the technical field of chemical material preparation, a three-layer structure is constructed by taking oriented carbonized pine wood as a supporting framework, taking rare earth / nano-particle dual-modified zeolite as an adsorption core and taking a hydrophobic coating as a protective layer; the preparation method comprises the continuous processes of pine gradient carbonization, zeolite dual modification, in-situ coating forming and continuous sintering. The material solves the problems of capacity attenuation, high regeneration energy consumption and microbial pollution of a traditional adsorption material under a high-humidity working condition, is high in CO2 saturated adsorption capacity and high in capacity retention rate after regeneration, is adaptive to scenes such as a transcritical CO2 heat pump, high-humidity industrial waste gas purification and high-salinity wastewater treatment, can realize low-energy-consumption regeneration through photocatalysis, and is remarkable in effect.

The invention belongs to the technical field of coatings, and particularly relates to a green and environment-friendly coating and a preparation method thereof. Comprising the following steps: (1) modifying a zeolite molecular sieve by adopting an amino silane coupling agent; (2) carrying out heating reaction on the carboxylated carbon nanotube and the modified zeolite molecular sieve, carrying out vacuum filtration, and drying to obtain a carboxylated carbon nanotube modified zeolite molecular sieve; and (3) uniformly mixing the waterborne polyurethane dispersion liquid, the carboxylated carbon nanotube modified zeolite molecular sieve and a coating additive to obtain the green and environment-friendly coating. According to the invention, a coupling agent is utilized to modify a zeolite molecular sieve, then a multi-dimensional enhanced network is constructed through reaction with functionalized carbon nanotubes, and the multi-dimensional enhanced network is added into a waterborne polyurethane matrix as a modifier, so that the path of corrosion factors is prolonged, and the interface bonding force between a filler and resin is enhanced; micro-permeation channels caused by interface gaps are reduced, so that the performance of the waterborne polyurethane coating is improved.

The embodiment of the invention relates to the technical field of heavy anti-corrosion coatings, and discloses a marine facility anti-corrosion protective layer regulation and control method adapting to a strong salt mist environment, and the method comprises the following steps: preparing a self-activation intermediate paint, and applying the self-activation intermediate paint between a primer and a finish paint to form a composite protective layer; the core of the self-activation intermediate paint is that a main agent of the self-activation intermediate paint contains a dual-trigger mineralization precursor, and the precursor is composed of BF4-loaded hydrophobic modified zeolite and zinc phosphate coated water glass particles; when the coating is damaged, the corrosion microenvironment of the damaged area can cooperatively trigger the zeolite to release BF4 <-> to buffer the pH value, and meanwhile, the coated water glass particles are triggered to be dissolved and release silicate ions; the released silicate ions and positive ions in the environment are subjected to in-situ reaction to generate mineralized products, and a damaged area is blocked. The method can actively inhibit corrosion expansion and cathodic disbonding after the coating is damaged, and the long-term reliability and the service life of the protective layer are remarkably improved.

The invention provides all-solid waste cementing material-based low-carbon low-heat high-crack-resistance mass concrete. The cementing material comprises the following components: phase change lithium slag powder, phosphorus slag, carbide slag, phosphogypsum and modified zeolite powder, the phase-change lithium slag powder is of a core-shell structure, porous lithium slag is used as a carrier, pores of the carrier are filled with an organic phase-change material, the surface of the carrier is coated with aluminosilicate, and an active aluminosilicate shell layer is generated; the modified zeolite powder is zeolite powder loaded with an organic shrinkage reducing agent; the composite fiber is of a core-shell structure, and a core material is formed by loading an organic or inorganic phase change material on a porous metal fiber; and the sheath layer is coated outside the core material by adopting heat-shrinkable fibers which are subjected to heat shrinkage through heat treatment. Through the synergistic effect of the all-solid waste cementing material and the sheath temperature shrinkage-core material phase change composite fiber, optimal regulation and control of the whole heat-force-deformation process of the mass concrete are achieved, and finally the high-performance mass concrete which is excellent in the aspects of low carbon, environmental protection, low heat, high crack resistance and the like is obtained.

The invention discloses an amine adsorption modified filler, a preparation method and application thereof in dry hanging glue, the preparation method of the amine adsorption modified filler comprises the following steps: S1, adding natural zeolite into a hydrochloric acid solution, stirring and mixing for 2-4 hours at 70-90 DEG C, then carrying out suction filtration, washing to be neutral, and drying to obtain an acid-treated zeolite product; s2, carrying out ultrasonic mixing on the acid-treated zeolite product and an aluminum dihydrogen tripolyphosphate dispersion liquid, then drying at 120 DEG C to constant weight, and finally calcining at 200-400 DEG C for 2 hours to obtain an aluminum dihydrogen tripolyphosphate modified zeolite product; and S3, adding the aluminum dihydrogen tripolyphosphate modified zeolite product into a KH550 ethanol solution, stirring at 50-80 DEG C for 2-4 hours, performing vacuum drying, and grinding to obtain the modified filler for adsorbing amines. The modified filler disclosed by the invention has an adsorption effect on amine micromolecules far higher than that of a common adsorption material, also has good compatibility with a resin system, and is suitable for being applied to a dry-hanging adhesive high-filler system.

The invention relates to the technical field of environmental engineering, in particular to a photo-thermal evaporation material for salted loess site remediation and a preparation method and application thereof. The preparation method comprises the following steps: dispersing modified zeolite on the surface of a polypropylene non-woven fabric, sequentially spraying a pyrrole aqueous solution and a ferric chloride aqueous solution, continuously and repeatedly coating the modified zeolite, spraying the pyrrole aqueous solution and the ferric chloride aqueous solution, and performing in-situ polymerization to form a cross-linked coating; the preparation method comprises the following steps: preparing a spore suspension from beef extract, peptone, a manganese sulfate titanium dioxide solution, a nickel chloride hexahydrate solution, a yeast extract, an ammonium chloride solution and a sodium chloride solution, sequentially soaking a polypropylene non-woven fabric with a cross-linked coating formed on the surface into the spore suspension and a sodium alginate-graphene oxide mixed solution, spraying a calcium chloride solution, and drying to obtain the polypropylene non-woven fabric with the cross-linked coating formed on the surface. The photo-thermal evaporation material has the advantages that the photo-thermal conversion capability and the light absorption rate are excellent, the moisture evaporation rate is high, and the salt content of the salted loess can be obviously reduced in a short time.

The application discloses a kind of drinking water defluorination purification equipment, especially applicable to the treatment of high-fluorine groundwater in Inner Mongolia region.The equipment includes main tank body, heat preservation system, composite adsorption layer, water distribution system and regeneration system;Composite adsorption layer includes first activated alumina adsorption layer, modified zeolite molecular sieve layer and second activated alumina adsorption layer, forming gradient defluorination structure.Heat preservation system is built-in circulating liquid to cope with extremely cold climate in Inner Mongolia region in winter.Water distribution system includes upper water distributor and lower water distributor to ensure that raw water and defluorination medium are in full contact.Regeneration system is connected with main tank body through pipeline to realize in-situ regeneration of adsorption medium.The application solves the problem of low defluorination efficiency of existing equipment in low temperature environment through multilayer composite adsorption and cold resistance design, and the fluoride concentration of effluent is stably lower than 0.8 mg / L, which is suitable for decentralized water supply projects in rural and pastoral areas of Inner Mongolia.

This invention discloses a long-term phosphorus removal method for wetlands that couples anti-pollution and rhizosphere activation; belonging to the field of constructed wetland water treatment technology, the method includes the following steps: constructing a vertical flow constructed wetland reactor and filling it with lanthanum-chitosan-modified zeolite packing material; initially introducing slightly polluted river or lake water, using the packing material to release alkaline substances to maintain a pH of 11.0–12.0, and rapidly fixing phosphorus through chemical precipitation; after the effluent pH drops to the normal range, emergent plants are planted, using low phosphorus stress to induce the roots to secrete organic acids, neutralizing residual alkalinity and dissolving insoluble phosphorus on the packing material surface, thus regenerating active sites; simultaneously, utilizing the positively charged microenvironment of chitosan quaternary ammonium salt on the packing material surface and the synergistic antibacterial mechanism of the lanthanum-loaded nanostructure, microbial attachment and extracellular polymer secretion are inhibited, preventing bioclogging. This invention achieves efficient and long-term phosphorus removal from slightly polluted river or lake water through the synergistic effect of high-alkalinity start-up, rhizosphere activation, and anti-biofouling, extending the system's operating cycle.