282 results about "Bio based" patented technology

The invention discloses a full life cycle test method, system and equipment for a variable pitch system of a wind generating set, and the method comprises the steps: constructing a digital twin model of the variable pitch system, and simulating the performance of the variable pitch system under an extreme working condition through the digital twin model; deploying a self-adaptive nano sensor network, and testing and optimizing the variable pitch system; carrying out remote installation and calibration guidance on the tested and optimized variable pitch system by utilizing an augmented reality technology; through an autonomous learning monitoring mechanism, all-weather monitoring is carried out on the pitch system which is operated after installation and calibration, and potential problems and damage in operation of the pitch system are predicted; based on a biological inspiration self-repairing technology, repairing potential damage of the variable pitch system; the method comprises the following steps: acquiring operation data of a variable pitch system, proposing an upgrading scheme for the variable pitch system by virtue of an expert diagnosis mechanism, and verifying the upgrading scheme through a digital twinborn model; and an intelligent decommissioning evaluation platform is established, the residual life of the variable pitch system is evaluated, and a recovery scheme is formulated.

The invention relates to a livestock health early warning and intelligent driving mechanical auxiliary system based on bio-electricity signal monitoring, and belongs to the technical field of animal husbandry intelligent management. Aiming at the problems of single parameter, strong driving irritability and low efficiency of a traditional monitoring method, the system is used for generating a health score in real time by adopting a CNN-LSTM hybrid model through data fusion of a bio-electricity signal acquisition module (electrocardio, myoelectricity and respiratory frequency) and an environment sensor, and driving an intelligent driving machine in combination with a deep reinforcement learning algorithm, so that the driving effect is improved. The abnormal livestock is guided to be isolated in a non-intrusive mode through ultrasonic directional wave beams and low-intensity laser. The monitoring accuracy is larger than or equal to 95%, the driving efficiency is improved by 60%, all-weather stable operation (availability is larger than or equal to 98%) is achieved, the epidemic disease risk and animal stress are effectively reduced, and an efficient intelligent solution is provided for large-scale breeding.

The invention relates to the technical field of 3D printing, and discloses an environment-friendly packaging box rapid forming method and system based on biodegradable materials, and the method comprises the steps that a thermal-structure coupling finite element model is established; based on the thermal-structural coupling model, a multi-objective optimization model is constructed, and structural design parameters and initial printing path configuration are obtained; training a printing control strategy by utilizing a strategy optimization algorithm; according to the structural design parameters, the printing path configuration and the printing control strategy, a layer-by-layer printing path and a supporting structure configuration scheme matched with the printing object are generated; and the 3D printing process is executed, and closed-loop adjustment is conducted according to the control strategy. According to the method, the thermal-structural coupling finite element model based on the biodegradable material is constructed, and changes of a temperature field, a stress field and a thermal strain field in the printing process are accurately simulated, so that a printing path and supporting structure configuration are optimized, the printing precision is improved, structural instability caused by thermal deformation and interlayer stress is avoided, and the strength and stability of an object are ensured.

The invention relates to the technical field of soilless culture substrates, in particular to a soilless culture substrate based on biochar and mushroom dreg resource utilization and a preparation method and application of the soilless culture substrate. The soilless culture substrate comprises the following raw materials in parts by mass: 30-50 parts of mushroom dregs, 20-30 parts of charcoal, 10-15 parts of vermiculite, 8-12 parts of perlite, 5-10 parts of humic acid and 2-5 parts of trace elements. The soilless culture substrate can effectively utilize biochar and mushroom dreg resources, provides a good physical environment and sufficient nutrient supply for plant growth, improves the stress resistance and yield quality of plants, reduces dependence on traditional non-renewable substrate resources, and reduces the pressure of agricultural wastes on the environment.

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 hydrogen slow-release particles based on biochar-magnesium hydride and a preparation method of the hydrogen slow-release particles. The hydrogen slow-release particles are formed by mixing magnesium hydride with the purity larger than 99%, biochar and an adhesive. The high-purity magnesium hydride finished product is adopted, the environment heavy metal pollution repairing function of the biochar is utilized, the hydrogen release time in magnesium hydride is prolonged, crop growth and environment pollution repairing are promoted through controllable slow-release hydrogen, and crop growth is promoted.

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 relates to the technical field of biosensor detection, in particular to a food grease safety detection device based on a biosensor. The detection device comprises a biosensor and an electron microscope, and further comprises a built-in sampling device, and the sampling device comprises a sampling tank, a mounting column, a feeding pipe, a pressurizing assembly and a cleaning assembly; a spiral heat supply pipe is arranged in the side wall of the mounting column, and a discharge pipe is vertically arranged at the bottom; the sampling tank is composed of an upper tank and a lower tank which are in threaded connection, a first filtering disc is mounted in the upper tank, a second filtering disc is mounted in the lower tank, a mounting disc is arranged between the upper tank and the lower tank, a first-stage pressurizing space is formed between the first filtering disc and the upper tank, and a second-stage pressurizing space is formed between the center frame and the second filtering disc; a water level detection mechanism is arranged beside the second filter disc; the outer side of the feeding pipe is sleeved with a heat supply sleeve. Efficient layering, precise temperature control and intelligent cleaning of the grease food are achieved, the detection sensitivity is improved, the maintenance cost is reduced, and the device is suitable for multi-scene rapid detection requirements.

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 relates to the field of underground water in-situ remediation, and discloses an underground water circulation well primary battery remediation device and method based on a biochar electrode, and the device comprises a circulation well body which comprises a first screen section and a second screen section; the water pumping and injecting part is used for pumping the polluted underground water into the second screen section from the first screen section and recharging the polluted underground water into the aquifer from the second screen section after treatment to form an underground water circulating flow field; the primary battery assembly comprises a liquid storage part, a cathode assembly, an anode assembly and a proton exchange membrane, is arranged on the second screen section and is used for degrading pollutants in underground water. An oxidizing agent is injected into the liquid storage part and reacts with underground water pollutants collected in the second screen section, electrons are transmitted through the cathode assembly and the anode assembly, the oxidizing agent is prevented from making direct contact with the pollutants, and pollutant degradation and removal are achieved; in the whole process, the generation of high-toxicity intermediate products and the toxic action on primary microorganisms can be reduced, so that the secondary pollution risk of the underground water environment is reduced, and the purpose of green low-carbon remediation is achieved.

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 present invention relates to a fixed bed electrochemical reactor comprising at least a first volume electrode, preferably based on biobased carbon, and a separator configured to separate the first volume electrode from a second surface or volume electrode and to ensure compression at least on said first volume electrode, to the use thereof in various applications such as removing pollutants from a liquid medium comprising at least one organic pollutant, disinfecting water by electrochlorination, water electrolysis, seawater desalination, energy storage (e.g. as redox flow battery or supercapacitor), or the generation of electric power from osmotic power, and to a method for removing pollutants from a liquid medium comprising at least one organic pollutant used in said reactor.

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 relates to the technical field of electric digital data processing, and particularly discloses a poplar man-made forest soil structure optimization method based on combination of charcoal and organic fertilizer, which comprises the following steps: firstly, collecting soil initial characteristic data of a poplar man-made forest, and evaluating a soil structure improvement now force index to determine a soil optimization mode; and executing corresponding structure optimization measures according to the optimization mode, and sending a prompt to a preset display port. And then performing charcoal persistence evaluation and organic pollutant accumulation risk evaluation on the optimized poplar man-made forest area. And finally, updating the soil optimization configuration according to the evaluation results. The process realizes accurate optimization and continuous improvement of the soil structure of the artificial poplar forest, and ensures that the soil quality meets the growth requirements of poplar.

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.

A molded element (100) for a body of a recreational vehicle, in particular a caravan or mobile home, is described, comprising: a polymeric matrix; and a reinforcing material based on a biorenewable material, and / or the reinforcing material is biodegradable; or wherein the reinforcing material consists of one or more materials, each based on a biorenewable material; and wherein the reinforcing material is embedded in the polymeric matrix; and wherein the polymeric matrix is ​​bio-based.

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 relates to a saline soil Na < + > targeted removal method, in particular to a saline soil Na < + > targeted removal method based on biochar composite material coupling microwave assistance. The invention aims to solve the problems that excessive Na < + > in salinized soil can cause soil aggregate structure collapse, soil hardening and porosity reduction, water and nutrient uptake of plant root systems is severely hindered, and land productivity is sharply declined. The preparation method comprises the following steps: step 1, preparing an amphoteric hydrogel-nano biochar composite material; 2, systematic classification and pretreatment are conducted on the salinized soil; 3, the amphoteric hydrogel-nano biological carbon composite material is put into use according to the grade of the salinized soil; 4, watering is conducted, the soil humidity is maintained to be 20-30%, and the amphoteric hydrogel is promoted to absorb water and expand. The invention belongs to the technical field of soil remediation.

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 invention belongs to the field of biomass resource utilization and solar water evaporation materials, and discloses an interface water evaporation material based on biomass, a preparation method and application of the interface water evaporation material and a water evaporation device. The preparation method comprises the following steps that a biomass material is used as a raw material, pretreatment is conducted, the surface of the biomass material is coated with an inflammable substance, the biomass material coated with the inflammable substance is obtained, then surface carbonization treatment is conducted, and the biomass-based interface water evaporation material is obtained. The carbonization treatment temperature is 1300 to 1800 DEG C, and the treatment time is 5 to 20 seconds. The preparation method of the interface water evaporation material is simple, raw materials are easy to obtain, and the interface water evaporation material is suitable for obtaining water during field operation. The obtained water evaporation device is easy to assemble, the water evaporation rate is 1-6.31 kg m <-2 > h <-1 >, the water evaporation efficiency is higher than 80%, and the water evaporation device has wide application prospects in outdoor or field water purification.