211 results about "Bio based" patented technology

In one aspect, a biochar-based water purification system includes a first cover configured to receive a liquid source. A housing element is configured to house a plurality of the interior elements. A plurality of interior elements includes one or more filtration elements that include at least one biochar-based water purification system. A second cover is configured to release a filtered liquid.

The invention belongs to the technical field of wastewater treatment and recycling, and relates to a low-pressure ultrafiltration sewage treatment method and device based on bioelectrochemical enhancement and application. The treatment device consists of a water inlet tank, a constant water level water tank, a cathode, a resistor, a membrane assembly, a biological filter cake layer, a pre-filtering layer-anode, an ultrafiltration membrane, a water collecting device, a data acquisition module and a computer. The treatment device is used for treating effluent of a secondary sedimentation tank of a sewage plant and tail water of livestock and poultry breeding wastewater; on the basis of retaining nitrogen and phosphorus resources, deep removal of heavy metals and antibiotics is realized, propagation of resistance genes is inhibited, and safe reuse of nitrogen and phosphorus resources in effluent of sewage plants and tail water of livestock and poultry breeding wastewater can be realized. In the invention, low-pressure ultrafiltration adopts transmembrane pressure difference generated by gravitational potential energy to realize continuous flow filtration, coupled bioelectrochemistry utilizes electric energy generated by biodegradation of organic matters to realize reduction of heavy metals and deep removal of reinforced antibiotics, and the method has the advantages of greenness, low carbon and sustainability.

The invention provides a bio-based bi-component polyurethane transparent flame-retardant pouring sealant and a preparation method and application thereof, the bio-based bi-component polyurethane transparent flame-retardant pouring sealant comprises a component A and a component B. The component A comprises the following components by weight: 20-50 parts of bio-based polyol; 30 to 50 parts of a bio-based auxiliary agent; 4 to 12 parts of other auxiliary agents; the component B is prepared from the following component in parts by weight: 10 to 20 parts of isocyanate. According to the invention, by adding the bio-based polyol and the bio-based auxiliary agent in a specific amount and matching the bio-based polyol and the bio-based auxiliary agent in a specific amount with the isocyanate in a specific amount, the prepared pouring sealant has a better flame-retardant effect, the safety of the polyurethane transparent pouring sealant is improved, and the pouring sealant can meet some application scenarios requiring high safety.

The invention discloses a black land plough layer soil construction method based on a bio-organic fertilizer, and aims to solve the problems of black land soil degradation and fertility decline. The functional bio-organic fertilizer containing nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria is prepared, and scientific and accurate fertilization is realized by combining soil physicochemical property determination and mathematical model optimization. The method specifically comprises the following steps: measuring the nutrient content and pH value of soil and fertilizer, constructing a mathematical model to obtain optimized application parameters, and continuously improving the soil fertility and productivity by dynamically adjusting the fertilizer application amount and evaluating the soil fertility, thereby reducing the dependence on chemical fertilizer, improving the soil structure and improving the crop yield. The method has the characteristics of environmental friendliness, accuracy, high efficiency and high sustainability.

The invention relates to the technical field of digital twinborn and agricultural information, and discloses a digital twinborn growth simulation and optimization method for safflower seedling breeding, and the method comprises the following steps: constructing individual digital twinborn bodies fusing genotypes, phenotypes and multi-dimensional environmental perception data; performing hybrid modeling in combination with the mechanism model and a depth time sequence neural network, and correcting growth prediction deviation in real time; and based on multi-objective optimization of biomass, medicinal component content and water efficiency, generating a precise cultivation regulation and control instruction. The system comprises a data acquisition unit, a twin construction unit, an environment fusion unit, a hybrid modeling unit, a visualization unit, an optimization decision unit and an instruction execution unit. According to the method, through closed-loop intelligent regulation and control, the yield, quality and resource utilization efficiency of safflower seedling breeding are remarkably improved.

The invention discloses a jacquard vamp material based on bio-based degradable polylactic acid (PLA) and a preparation method thereof, and relates to the technical field of shoe materials. The jacquard vamp material is of a three-layer jacquard structure formed by integrally weaving PLA composite filaments through a jacquard warp knitting machine. The PLA composite filament is prepared from the following raw materials in parts by weight: 80-95 parts of polylactic acid (PLA) slices, 5-15 parts of poly (butylene adipate / terephthalate) (PBAT), 3-8 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.5-2 parts of an anti-hydrolysis agent and 0.5-1.5 parts of a lubricant. According to the invention, the bio-based PLA is used as a main raw material and is matched with degradable auxiliaries such as PBAT, so that the whole vamp material can be completely biodegraded under a composting condition, the problem of environmental pollution of a traditional vamp is fundamentally solved, and meanwhile, through blending modification of PBAT and the flexibilizer, the flexibility and impact resistance of the PLA material are remarkably improved, and the vamp material has good application prospects. The requirements of the vamp material on softness, wear resistance and durability can be met.

The invention discloses a hematite microtube catalyst based on a biological template as well as a preparation method and application of the hematite microtube catalyst, and belongs to the technical field of lithium-sulfur batteries. The preparation method of the hematite microtube catalyst based on the biological template comprises the following steps: transferring mycorrhiza to an iron-source-containing organic solid culture medium for cultivation, then selecting single colonies, transferring the single colonies to an iron-source-containing organic liquid culture medium, and carrying out standing culture to obtain a catalyst precursor; and sequentially carrying out reduced pressure suction filtration and freeze drying on the catalyst precursor, and annealing in an oxidizing atmosphere to obtain the hematite microtube catalyst based on the biological template. The invention further discloses the hematite microtube catalyst based on the biological template and application of the hematite microtube catalyst. The hematite microtube catalyst based on the biological template can solve the problems of capacity fading and poor cycling stability caused by polysulfide shuttle effect, low conductivity and volume expansion of the existing lithium-sulfur battery positive electrode material, and has great application potential.

The application discloses a biomass collection, storage and transportation site optimization method, and belongs to the technical field of biomass energy utilization and space optimization. The method comprises the following steps: acquiring biomass site data and trunk road information of a preset area, constructing a biomass distribution matrix of the preset area by means of geographical coordinates and density of the biomass site, setting weights of corresponding sites based on biomass density, clustering and reducing dimensions of the distribution matrix by means of the weights, and outputting a preset number of candidate site sets of biomass collection and storage stations; generating an address combination containing a preset number of optimal biomass collection and storage stations based on the candidate site sets of the biomass collection and storage stations; generating a candidate site set containing a preset number of biomass power plants along a line by means of the trunk road information; generating an address combination containing a preset number of optimal biomass power plants based on the candidate site set of the biomass power plants; and the method can accurately and economically determine an optimal address combination of biomass collection, storage and transportation in the preset area.

The invention discloses a greenhouse closed-loop energy-saving heat supply system based on biological waste fermentation, and relates to the crossing field of agricultural intelligent planting and waste resource utilization, the system comprises the following components: a fermentation unit, a biogas collection and utilization module, a waste heat and fertilizer recovery module and an intelligent management and control system; biogas is generated through fermentation of biological waste, heat generated by combustion of the biogas is used for supplying heat to a greenhouse and a living room, meanwhile, waste heat generated in the fermentation process is recycled for auxiliary heat supply, and the energy utilization efficiency is remarkably improved; according to the invention, residues after fermentation can be converted into a decomposed organic fertilizer for greenhouse crops to use, so that cyclic utilization of resources is realized, the use amount of chemical fertilizer is reduced, the production cost is reduced, and meanwhile, environmental protection is facilitated.

Provided is a method and system for comprehensive water quality assessment by integrating biotic and abiotic factors. The method includes: acquiring abiotic factors of a water body to be tested; constructing a biotic factor indicator library by an environmental DNA technology; determining a biotic-abiotic response relationship-based abiotic factor weight matrix using the abiotic factors and the biotic factor indicator library; acquiring a machine learning-based abiotic factor weight matrix using the abiotic factors and a LightGBM model; determining an abiotic factor comprehensive weight matrix according to the biotic-abiotic response relationship-based abiotic factor weight matrix and the machine learning-based abiotic factor weight matrix; and conducting the comprehensive water quality assessment of the water body to be tested based on the abiotic factor comprehensive weight matrix and the abiotic factors to determine a comprehensive water quality assessment result of the water body to be tested.

The invention discloses a biogas carbon sequestration hydrogen production simulation device based on biochar catalytic action and a test method. The biogas carbon sequestration hydrogen production simulation device comprises a gas preparation and conveying system, a reaction and temperature control system and a product treatment and analysis system which are connected in sequence, the gas preparation and conveying system comprises a CH4 gas cylinder, a first flow regulator and a mixed gas tank which are sequentially connected through a guide pipe, and a CO2 gas cylinder and a second flow regulator which are sequentially connected through a guide pipe and are connected with the mixed gas tank. According to the biogas carbon sequestration hydrogen production simulation device based on the biochar catalytic action and the test method, the biogas is converted into H2 and the carbon nanomaterial by utilizing a biogas chemical vapor deposition process, the H2 can be stored as clean energy, and the carbon nanomaterial is widely applied in multiple fields due to unique physical, chemical and mechanical energy, so that the biochar catalytic action-based biogas carbon sequestration hydrogen production simulation device can be widely applied to various fields. The problem of high emission of CO2 in the traditional anaerobic digestion and biogas treatment process is solved, meanwhile, carbon recycling is achieved, and high economic value is shown.

The present disclosure relates to a biomaterial-based vitrimer composite material that can be recycled and reprocessed and has self-healing and stress-responsive properties, and a method for manufacturing same. Specifically, the vitrimer composite material according to the present disclosure can exhibit excellent self-healing, reprocessing, and recycling characteristics of the biomaterial-based vitrimer while continuously exhibiting stress-responsive characteristics of spiropyran.

The invention discloses an underground water pollution rapid detection device based on a biosensor array, and relates to the technical field of detection devices.The underground water pollution rapid detection device comprises a crawling pipeline, a biosensing detection module, a sampling module and a liquid feeding module, the sampling module, the liquid feeding module and the biosensing detection module are independently assembled and are in butt joint through standard interfaces, and maintenance and cleaning are convenient; meanwhile, the problems of independent work and connection fault of a traditional split device module are solved, the liquid conveying module can automatically convey sample liquid to the detection module, seamless connection is achieved in the whole process, time loss caused by independent work of the traditional split device module is avoided, redundant structures are reduced, a crawling pipeline serves as a common carrier, and the detection efficiency is improved. The modules are distributed along the axis instead of being stacked, the overall size is reduced, and the device is more suitable for being deployed in a narrow space.

This invention discloses a self-cleaning radiative cooling coating based on biomass carbon quantum dots, its preparation method, and its application. The coating comprises a polymer film-forming resin, carbon quantum dots, and hollow glass microspheres; wherein the mass ratio of the polymer film-forming resin to the filler is 1:(0.1-0.5), and the mass ratio of the hollow glass microspheres to the carbon quantum dots is 1:(0.05-0.2). This invention synergistically enhances solar reflectivity through the photoluminescence properties of carbon quantum dots and the scattering properties of hollow glass microspheres, while simultaneously utilizing the synergistic effect of fluorinated resin and modified hollow glass microspheres to endow the coating with superhydrophobic self-cleaning function. A single layer of this coating can achieve a solar reflectivity >92%, mid-infrared emissivity >94%, and contact angle >150°, possessing both efficient daytime radiative cooling and long-lasting self-cleaning performance. It is particularly suitable for passive heat dissipation of outdoor equipment such as new energy vehicle charging piles, and features simple process, environmental friendliness, and excellent performance.

The invention relates to the technical field of thermal expansion microspheres, in particular to controllable thermal expansion microspheres based on bio-based copolymers and a preparation method thereof.The preparation method comprises the steps that S1, vinyl nitrile-containing monomers, bio-based rigid monomers, bio-based flexible monomers and functional monomers are subjected to condensation polymerization under the action of a catalyst, and prepolymers are obtained; s2, mixing the prepolymer with a foaming agent, adding a bio-based emulsifier, and carrying out emulsification treatment to obtain a uniform emulsion; s3, dispersing the emulsion in a water phase of a natural stabilizer, adding an initiator, and carrying out polymerization reaction at a certain temperature and pressure to form microspheres with core-shell structures; and S4, carrying out solid-liquid separation and drying treatment to obtain the thermal expansion microspheres. The thermal expansion microspheres obtained by the preparation method have higher expansion rate, and the whole preparation process and application are more controllable.

The invention provides a green low-temperature preparation method of nano aramid fiber aerogel based on a bio-based solvent, and relates to the technical field of aerogel preparation, and the green low-temperature preparation method comprises the following steps: immersing nano aramid fiber into an alkaline solution for pretreatment, and washing with water until the nano aramid fiber is neutral; dispersing the pretreated nano aramid fiber in a bio-based solvent, adding an ionic liquid, and performing stirring treatment under an ultrasonic condition to obtain a nano aramid fiber dispersion liquid; adding a cross-linking agent into the dispersion liquid, and standing for gelation to obtain wet gel; the wet gel is subjected to freeze drying, and the nano aramid fiber aerogel based on the bio-based solvent is obtained; and carrying out heat treatment in a normal-pressure nitrogen atmosphere after freeze drying. A bio-based solvent is adopted to replace a traditional toxic solvent, plant ash extracting solution pretreatment and multi-stage low-temperature freeze drying are combined to replace supercritical drying, and based on the synergistic effect of a cross-linking agent compounding system and ionic liquid, the technical problems that in the prior art, solvent toxicity is high, energy consumption is large, the structure is prone to collapse, and material performance is insufficient are solved.

The invention discloses a biochar-based metallurgical fossil raw material replaceable product and a preparation method thereof, and belongs to the technical field of bio-based fuel. The preparation method of the replaceable product comprises the following steps: firstly, uniformly mixing the bio-based carbon particle material, the adhesive and water, and then molding to obtain a solid mixture; drying the solid mixture, and curing the dried solid mixture in the atmosphere of enriched inert gas; and finally, carrying out first-stage cooling and second-stage cooling in sequence to prepare the replaceable product particles. In the drying treatment process, gas generated by drying treatment is sucked under negative pressure; and the sucked gas is subjected to dust removal, VOC removal and drying treatment in sequence, and then inert gas is prepared and used for providing inert gas for curing treatment. According to the invention, free radical components of the material and spontaneous heating and spontaneous combustion risks caused by the free radical components can be reduced.

The application relates to the technical field of composite material preparation, in particular to a carbon fiber reinforced ceramic matrix composite material preparation method, which comprises material preparation, intelligent interface design, nanomaterial application, sustainable material exploration, advanced forming process, multifunctional composite material research and development, performance testing, data analysis and scheme optimization.In the application, X-ray diffraction analysis and powder metallurgy technology are used to ensure the high purity and ideal crystal structure of carbon fibers and ceramic matrix materials, so that the quality of the materials is high, specific functional molecules are introduced through molecular dynamics simulation, the compatibility between the carbon fibers and the ceramic matrix materials is optimized, and the bonding force between the carbon fibers and the ceramic matrix materials is enhanced.The sol-gel method is used to uniformly disperse nanometer carbon tubes and nanometer oxides into the composite material, so that the performance of the composite material is improved.The green synthesis method based on bio-based resin is used, so that the composite material is more sustainable.

The invention relates to the technical field of bio-based water-repellent and flame-retardant composite materials, in particular to a biomass cake meal composite water-repellent flame retardant prepared on the basis of a one-step method and application of the biomass cake meal composite water-repellent flame retardant. The bio-based composite, namely the target bio-based composite flame retardant, is prepared on the basis of various components such as crude protein and amino acid contained in biomass cakes through chemical reaction and hydrolysis reaction, and meanwhile, the target bio-based composite flame retardant has a water-repellent function. The flame retardant can be directly used as a flame retardant additive for cellulose fibers or fabrics, polyester fibers and fabrics, cellulose plates, polyurethane, nylon, rubber and plastics or can be directly prepared into a material for use.

Provided herein is a triboelectric nanogenerator comprising a substrate layer; an electrode layer; and a tribolayer; wherein the electrode layer and the tribolayer are bonded to each other by hydrogen bonds. Also provided herein is a biopolymer-based triboelectric nanogenerator, comprising a first component having a positive tribolayer; and a second component having a negative tribolayer, wherein each of the first component and the second component comprise a substrate layer; an electrode layer; and a tribolayer; wherein the electrode layer and the tribolayer of the first component are bonded by hydrogen bonds. Further provided herein is a method of making a biopolymer-based triboelectric nanogenerator.

The invention discloses a soil desalting and fertility improving method based on biochar and microorganism synergy, and relates to the technical field of soil remediation. The method comprises the following steps: pretreatment of raw materials: crushing agricultural wastes until the particle size is 2-5cm, and drying until the water content is 1t; 10%; preparing and modifying biochar, namely pyrolyzing the pretreated raw materials under a limited oxygen condition at the pyrolysis temperature of 300-700 DEG C for 2 hours to obtain the biochar; microbial compounding: concentrating a salt-tolerant microbial agent to be greater than or equal to 10 CFU / mL, loading the concentrated salt-tolerant microbial agent onto the biochar through a vacuum negative pressure impregnation method, and controlling the mass ratio of a bacterial solution to the biochar to be 1: 10; field implementation: applying the complex into salinized soil according to the dosage of 3-10t / ha, deeply ploughing for 30cm, and irrigating and leaching; effect monitoring: regularly detecting the soil EC (salt) value, the available nitrogen content and the crop yield. According to the soil desalting and fertility improving method, the salt content of the soil can be remarkably reduced, the soil fertility is effectively improved, crop growth is promoted, and the soil desalting and fertility improving method is particularly suitable for rapid improvement of moderately and severely salinized farmlands.

The invention discloses an oil source comparison method and system based on biomarker compound big data analysis. The oil source comparison method comprises the following steps: acquiring biomarker compound big data in hydrocarbon source rock and crude oil; according to big data of biomarker compounds in hydrocarbon source rocks and crude oil, main factor analysis is carried out, and main factors are screened out; performing rotated factor load matrix analysis on the main factors, and further performing type division on hydrocarbon source rocks and crude oil; based on big data of the biomarker compounds in the main factors, factor score coefficient matrix analysis is carried out, and key biomarker compound parameters are screened out for oil source comparison. According to the method, oil source comparison is carried out by adopting biomarker compound big data, factor score coefficient matrix analysis is carried out on the biomarker compound big data, and biomarker compound parameters capable of representing crude oil sources are screened out for oil source comparison; the problems of high multiplicity of solutions, poor effect and the like when oil source comparison is carried out by utilizing biomarker compound maps or parameter charts are solved.

The invention discloses a biomass waste-based compost fertilizer for improving saline-alkali soil and a preparation method thereof, and belongs to the technical field of fertilizer preparation, the compost fertilizer comprises the following raw materials: a biomass waste basic mixture, charcoal, desulfurized gypsum, zeolite powder, hydroxyapatite, sodium lignin sulfonate, EDTA-metal chelate and polyaspartic acid; the biomass waste base mixture comprises animal waste, crop straw and agricultural product processing by-products. On the basis of a biomass waste resource utilization concept, the compost fertilizer with a multi-mechanism synergistic effect is constructed through precise compatibility of components such as the biochar, the desulfurized gypsum, the zeolite, the hydroxyapatite, the natural polymer and the metal chelate and optimization of a two-stage fermentation and aging process, and aims to break through the bottleneck of the prior art. An innovative solution is provided for green and sustainable improvement of the saline-alkali soil.

This invention relates to an ecological restoration structure for steep rock slopes based on bio-stabilization technology, comprising a rock slope body, anchor bolts, a metal mesh, a square solidification cavity, a bio-stabilized coarse-grained soil layer, a vegetation base layer, and n-shaped components. The metal mesh is laid flat on the surface of the rock slope body and fixed thereto by several anchor bolts. The anchor bolts are arranged in rows laterally and columns longitudinally along the rock slope body and driven into the stable rock strata. The square solidification cavity is fixed to the rock slope body by n-shaped components embedded in the rock mass. The bio-stabilized coarse-grained soil layer is formed by spraying a soybean enzyme treatment solution to solidify the coarse-grained soil containing bio-slurry laid within the square solidification cavity. The vegetation base layer is sprayed onto the surface of the bio-stabilized coarse-grained soil layer. This invention provides an ecological restoration structure for steep rock slopes with good strength and integrity, convenient and efficient construction, good ecological restoration effect, and strong ecological stability and sustainability.

The invention discloses a preparation method and application of a photocatalytic membrane loaded on the basis of a charcoal-based g-C3N4 material. The invention relates to a preparation method of a photocatalytic membrane loaded on the basis of a charcoal-based gC3N4 material, which comprises the following steps: 1) dispersing PBC-gC3N4 in water, and carrying out ultrasonic treatment for 20-30 minutes; and (2) enabling the PBC-gC3N4 mixed aqueous solution in the step (1) to continuously pass through a PVDF (Polyvinylidene Fluoride) membrane with the pore diameter of 0.45 mu m by using a vacuum pump until the PBC-gC3N4 is firmly fixed on the surface of the PVDF membrane, and drying in a drying oven at 50-60 DEG C to obtain the photocatalytic membrane loaded with the biochar-based gC3N4 material. The photocatalytic membrane has adsorption and degradation capabilities and is applied to removal of pesticides and antibiotics.

The present technology relates to biofuels, and more particularly, to biomass-based diesel from olefin oligomers. Diesel fuels with cetane number of 49 or greater are prepared by blending hydrocarbons produced by olefin oligomerization with renewable diesel, resulting in a blended fuel that has a lower cloud point than the cloud point of the renewable diesel. A different aspect relates to an integrated process for lipid HDO and olefin oligomerization wherein the propane coproduct of lipid HDO is subjected to dehydrogenation to produce a vapor stream having propylene and hydrogen. The propylene is subsequently oligomerized to iso-olefins and the iso-olefins are combined with the lipid feed for hydrogenation in the HDO reactor.

The invention relates to the technical field of water body remediation, in particular to a rural black and odorous water body in-situ remediation device based on a biological membrane technology, which comprises two brackets, the two brackets are jointly and fixedly connected with a mounting plate, the mounting plate is provided with an adjusting mechanism for adjusting the length of a biological membrane, the adjusting mechanism comprises a plurality of round rods and a mounting groove, and the round rods are fixedly connected with the mounting groove. The interiors of the mounting grooves are rotationally connected with lead screws, the interiors of the mounting grooves are slidably connected with transmission rods, and transmission grooves are formed in the round rods. A discharge mechanism capable of uniformly distributing functional bacteria is jointly arranged between the supports, the discharge mechanism comprises a first motor and a reciprocating screw rod, the reciprocating screw rod is in threaded connection with a material collecting box, and the bottom end of the material collecting box is fixedly connected with a discharge port. Stacking waste is avoided, the utilization rate is increased, and the lengths of biological membranes at different positions can be flexibly adjusted.

The invention relates to the technical field of material mixing, in particular to a multi-material-opening mixing and stirring device and method based on a charcoal-based plant growth regulator, and the multi-material-opening mixing and stirring device comprises a power motor for providing a power source for a sectional type material mixing unit and a material guide box for positioning the power motor, one side of the material guiding box is fixedly connected with a shell of the power motor through screws, a sectional type material mixing unit is installed in the material guiding box, a feeding unit used for providing raw materials into the sectional type material mixing unit is installed at the upper end of the material guiding box through an installation plate and bolts, and a magnetic plate fixedly connected with the inner wall of the material guiding box is installed in the sectional type material mixing unit; in the invention, aiming at the mixing problem of light porous carbon-viscous fluid-microcapsules in the biochar-based regulator, through three innovations of sub-cavity micro-treatment, magnetic drive high-frequency crushing and precise time sequence feeding, the mixing uniformity of 10-ton-level mass production reaches the laboratory test level (the component variation coefficient is less than or equal to 5%), and visible aggregates are thoroughly eliminated.

The invention discloses a bioreactor flow field intelligent prediction method and system. The prediction method comprises the following steps: constructing a CFD model of a series of bioreactors; engineering parameters of the series of bioreactors under the simulated working condition are obtained through the CFD model; based on the bioreactor, a corresponding cold model experiment is built, and experiment data of the cold model experiment under the simulated working condition are obtained; calculating the deviation between the engineering parameters and the experimental data under the simulated working condition, and correcting the CFD model; carrying out an orthogonal experiment by utilizing the corrected CFD model so as to at least fit flow field data of each bioreactor under different working conditions and establish a database; calculating and calling flow field data of the specified bioreactor under the specified working condition according to the database, and determining engineering parameters of the specified bioreactor under the specified working condition, so as to predict the working condition of the first-scale bioreactor close to the flow field of the specified bioreactor, and real-time prediction and intelligent amplification of flow field data in different stages of a biological culture process are realized.