38 results about "Bio based" patented technology

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 present application relates to a kind of rice variable topdressing methods monitored according to biomass, including based on unmanned aerial vehicle collection rice field multispectral image and canopy reflectance data of different growth stages of rice;Biomass inversion model is constructed, and the biomass spatial distribution grid map of whole field is calculated based on multispectral image and canopy reflectance data;Based on biomass spatial distribution grid map, the biomass gap of corresponding grid unit is calculated and obtained;Fertilizer requirement conversion model is constructed, the value of each grid unit is calculated, and the nitrogen fertilizer topdressing prescription map of whole field is generated to implement variable operation, establish the direct relationship between biomass accumulation and fertilizer requirement, avoid the inherent defects of spectral technology, realize low-cost, high timeliness, strong targeted topdressing decision, solve the core problem of "not accurate, not precise, not affordable" of prior art;Stable inversion ability is maintained in whole growth period.

This invention provides a method for removing perfluorinated and polyfluoroalkyl (PFOA) compounds based on co-heating of biomass and contaminated soil, belonging to the field of soil treatment technology. The method includes the following steps: mixing biomass with soil containing PFOA compounds to obtain a mixture; co-heating the mixture under an inert gas atmosphere to obtain soil with PFOA compounds removed; wherein, during the co-heating process, the biomass in the mixture pyrolyzes to generate biochar and reducing gases. The reducing gases are used to promote the degradation of PFOA compounds, and the biochar is used to capture undegraded PFOA compounds in situ. This method is characterized by simple operation, high treatment efficiency, excellent energy utilization, and strong environmental safety, and is suitable for large-scale remediation of contaminated soil.

The present invention relates to a method for manufacturing a biomaterial-based wearable sensor. The method for manufacturing a biomaterial-based wearable sensor according to the present invention is characterized by comprising: a) a first preparation step for preparing a base substrate in the form of a thin film; b) a second preparation step for placing an aqueous solution of graphene oxide and an aqueous silk fibroin solution in separate containers to prepare a material with which to coat the base substrate; c) a dip coating step for sequentially dip coating the base substrate with the graphene oxide aqueous solution and then the silk fibroin aqueous solution; and d) a drying step for drying the dip-coated base substrate by applying heat.

This utility model relates to a mixing device for biodegradable plastic processing, including a mixing tank with a feed pipe along one side of its top surface. Multiple storage tanks are circumferentially suspended around the feed pipe on the outer side of the mixing tank. An arc-shaped track is horizontally suspended directly below the discharge ports of the storage tanks. A feeding auger is radially mounted between the arc-shaped track and the feed pipe. A discharge pipe is connected downwards to the tail of the feeding auger and is rotatably inserted into the feed pipe. A follower frame is provided between the head of the feeding auger and the arc-shaped track. The top of the follower frame is rotatably supported by the head of the feeding auger, and its bottom is circumferentially slidably connected to the top surface of the arc-shaped track. A feeding hopper is connected upwards to the head of the feeding auger and can move to directly below the discharge port of the corresponding storage tank as the feeding auger rotates circumferentially. This mixing device achieves intensive feeding of multiple powder fillers, reducing equipment costs.

This invention consists of the development of a new method to stabilize natural biopolymers, especially chitosan, for use as a flocculant by adding metallic sulfates in a certain proportion, thereby improving shelf life at least 10 times and improving turbidity removal performance by up to 50% compared to the biopolymer alone or other chemical flocculants-coagulants, without significantly increasing production costs, thus offering a competitive and environmentally compatible advantage for users of these products.

This invention relates to the field of polymer materials and building material additives, specifically to a heavy metal complex-type tailings backfill water-reducing agent based on bio-enzyme catalysis and its preparation method. The preparation method includes monomer premixing, enzymatic oxidative coupling polymerization, and termination and activation steps. This method uses a buffer solution to adjust the pH of the multi-monomer system to construct a homogeneous aqueous environment, continuously introducing oxygen-containing gas to maintain the oxidation reaction cycle. Its core is the use of bio-enzyme catalysis to generate a polymer skeleton containing aromatic ring C-C bonds or C-O-C aromatic ether bonds from the monomers, and the construction of a stable chemical complex structure for heavy metals through the introduction of nitrogen-containing heterocyclic compounds. This invention solves the technical problems of traditional water-reducing agents being prone to uncontrolled polymerization and lacking chemical anchoring ability in heavy metal environments. It utilizes enzymatic polymerization, steric hindrance, and chemical complexation to synergistically address the synthesis obstacles and heavy metal leaching risks associated with complex industrial wastewater, effectively suppressing secondary pollution and improving the compressive strength of the backfill.

The application relates to the technical field of water treatment and resource recovery, and discloses a water body phosphorus recovery method based on a biochar mineral composite material coupling and strengthening, which comprises the following steps: simultaneously adding a polyhydroxy carboxylic acid salt and a soluble borate into wastewater containing phosphate and ammonium ions, adjusting an initial pH to 8.0-8.5; raising the mixed solution to 35-45 DEG C and keeping constant as an incubation period, adding biochar particles loaded with magnesium oxide and maintaining stirring; after the incubation period, lowering the temperature to 10-20 DEG C at a rate of 0.1-0.5 DEG C / min, continuing to maintain stirring and aging; after the aging is completed, discharging the slurry for solid-liquid separation, collecting the filter cake, and obtaining biochar composite particles rich in struvite. The technical scheme that the polyhydroxy carboxylic acid salt and the soluble borate are simultaneously added into the phosphorus-containing wastewater achieves the technical effects of inhibiting initial precipitation at the solid-liquid interface and strengthening internal pore mass transfer.

The application discloses a benthic organism individual biomass statistical method, system, device and medium. The method extracts the outermost contour perimeter, internal cavity contour perimeter, outermost contour containing area and internal cavity contour area of a to-be-counted individual from a to-be-counted individual image. The net perimeter of the to-be-counted individual is calculated based on the outermost contour perimeter and the internal cavity contour perimeter of the to-be-counted individual. The net area of the to-be-counted individual is calculated according to the outermost contour containing area and the internal cavity contour area of the to-be-counted individual. A plurality of candidate indexes are calculated based on the net perimeter and the net area of the to-be-counted individual. The core index is determined according to the plurality of candidate indexes. The individual biomass of the to-be-counted individual is calculated based on the core index, the net perimeter and the net area. The net morphological parameters are extracted, the candidate indexes and the core index are screened, the benthic organism volume is fitted, and the individual biomass statistical precision and efficiency are improved.

This invention relates to the field of footwear material processing technology, specifically to a biodegradable plastic meltblown upper based on bio-based PBAT. The raw materials for the upper are formulated in the following weight ratios: 30-50 parts bio-based PBAT particles, 20-40 parts bio-based PHA particles, 20-30 parts PLA polylactic acid particles, 3-6 parts epoxidized soybean oil plasticizer, 2-5 parts calcium carbonate modified filler, 0.1-0.5 parts anti-aging agent, and 0.5-2 parts bio-based antibacterial agent. This invention relates to a biodegradable PBAT-based meltblown plastic upper. Using biodegradable plastic granules as raw material, plasticizers, modified fillers, and anti-aging agents are added to modify the biodegradable material. An integrated modified melt extrusion and meltblown molding process is employed, allowing for one-time molding of the biodegradable meltblown upper, improving production efficiency and reducing production costs. By controlling the diameter and density of the meltblown fibers, a mesh-like porous structure is formed in the upper, ensuring breathability. A zoned meltblown process enhances the stress resistance of the toe and heel, ensuring the upper is tear-resistant, bend-resistant, and not easily deformed.

The application belongs to the technical field of photoelectrochemical sensors, and particularly relates to a preparation method of a novel photoelectrochemical sensor for simultaneously detecting micrometer and nanometer plastics based on a biosensing strategy, which comprises the following steps: S1, substrate cleaning: ITO conductive glass is sequentially placed in appropriate acetone, ethanol and deionized water for ultrasonic cleaning to remove contaminants such as grease and dust on the surface of the substrate, and the substrate is blown dry after cleaning; S2, ITO / BiOI nanometer array prepared by electrodeposition: an electrolyte containing Bi(NO3)3 and KI is prepared, and a BiOI nanometer array is prepared on the ITO conductive surface by using an electrodeposition method, the deposition voltage is-0.1V to-0.3V (vs. Ag / AgCl), and the deposition time is 1-5 min; by constructing a two-dimensional inorganic / organic van der Waals Z-type heterojunction (FeTCPP / BiOI), the separation of photoinduced electron-hole pairs is effectively promoted, the visible light absorption capacity is enhanced, the transient photoelectric value of ITO / BiOI / FeTCPP is 91.7 times and 7.4 times that of ITO / FeTCPP and ITO / BiOI respectively, and the photoelectric conversion efficiency is significantly improved.

The present application provides a slaughter wastewater treatment process based on a biological filter, comprising the following steps: S1: collecting a demulsification effect characteristic parameter of a pretreatment process in the wastewater treatment process, and preprocessing original data of the collected demulsification effect characteristic parameter; S2: performing standardization processing on the pretreated demulsification effect characteristic parameter to generate a demulsification comprehensive index; S3: collecting an operation health parameter in the biological filter, and preprocessing original data of the operation health parameter; S4: performing standardization processing on the pretreated operation health parameter to generate a process health index; and S5: generating an overall health index based on the demulsification comprehensive index and the process health index. The present application constructs the demulsification comprehensive index and the process health index, and fuses to generate the overall health index, so as to perform collaborative control between a flotation pretreatment unit and a biological filter main unit, guarantee the system impact load resistance and operation stability, and reduce the reagent consumption and operation cost.

The application discloses a method for preparing a composite sodium iron phosphate positive electrode material based on a biomass grinding aid. The method comprises the following steps: stirring a yam with water to obtain yam homogenate, and filtering the yam homogenate to obtain filtrate; weighing sodium pyrophosphate, ferrous oxalate, iron phosphate and sodium carbonate according to stoichiometric ratios, adding water, a carbon source and the filtrate, and stirring uniformly to obtain a mixed slurry; grinding the mixed slurry, and performing spray drying to obtain a composite sodium iron phosphate precursor powder; and calcining and crushing the composite sodium iron phosphate precursor powder to obtain a composite sodium iron phosphate positive electrode material. The yam biomass colloid is used as the grinding aid, and the yam biomass colloid has a wide source, low cost and biodegradability, can reduce particle agglomeration and improve grinding efficiency, and can improve the electrochemical performance and cycle capacity retention rate of the finished product; the process is compatible with existing equipment and is easy to industrialize.

This invention discloses a biomass-based p-n type dual-drive evaporative power generation device, comprising a water tank, an n-type device body, and a p-type device body. The n-type and p-type device bodies are disposed in the water tank. An n-type upper electrode and a p-type upper electrode are respectively disposed at the upper ends of the n-type and p-type device bodies. The p-type device body is composed of ammonium-modified lignin-free balsa wood, and the n-type device body is composed of leather tanned with vegetable tanning agents and retanned with AMPS. This invention also discloses a method for preparing the biomass-based p-n type dual-drive evaporative power generation device. By connecting the bottom with an aqueous solution, positively charged ammonium-modified balsa wood and negatively charged modified leather are integrated to construct a dual-drive water evaporative power generation structure. Under the synergistic enhancement effect of the dual drives, the reverse potential difference generated at the top is significantly increased, making the actual output voltage greater than the sum of the absolute values ​​of the voltages of the p-type and n-type devices operating individually.

The present application relates to waste treatment technical field, especially to a kind of based on organic waste resource processing method and system of biological fermentation, comprising: to be treated organic waste executes pretreatment modulation operation, and executes anaerobic fermentation, obtains fermentation liquor, ammonia stripping treatment is executed to fermentation liquor and pH back call, obtains back call biogas slurry, back call biogas slurry is introduced into the fermentation liquor executes anaerobic fermentation, obtains fermentation environment, based on pre-constructed multiple sampling points to fermentation environment executes environment parameter collection, and based on the multiple environment parameter group set of collection identifies ammonia inhibition precursor area, and then predict the multiple free ammonia concentrations of ammonia inhibition precursor area, based on multiple free ammonia concentrations complete organic waste resource processing.The present application guarantees the efficient resource processing of organic waste at the same time, realizes the biological fermentation processing method of free ammonia concentration grading control, to improve system operation stability and reduce ammonia inhibition risk.

The present invention relates to a biomaterial-based wearable sensor manufacturing method. The biomaterial-based wearable sensor manufacturing method according to the present invention comprises: a) a first preparation step of preparing a thin film-shaped base substrate; b) a second preparation step of preparing a material to be coated on the base substrate by putting an aqueous graphene oxide solution and an aqueous silk fibroin solution in separate containers; c) a dip coating step of sequentially dip-coating the aqueous graphene oxide solution and the aqueous silk fibroin solution on the base substrate; and d) a drying step of drying the base substrate which has undergone the dip coating by applying heat.

The present application belongs to the technical field of artificial stone, and particularly relates to an environment-friendly zero-silica stone based on bio-based resin and a preparation method thereof.The environment-friendly zero-silica stone according to the present application contains, by weight percentage, 63-70% of zero-silica stone recycling material, 20-25% of amorphous silicon dioxide powder and 8-12% of resin, wherein the resin is composed of unsaturated polyester resin and bio-based resin, and the amount of the bio-based resin is 10-30% of the total weight of the resin.The environment-friendly zero-silica stone uses zero-silica stone recycling material and amorphous silicon dioxide powder as main aggregate fillers, and uses unsaturated polyester resin and bio-based resin as a combined adhesive matrix, so that the curing performance, mechanical strength and economy are considered, and the obtained product has high compactness, stable physicochemical properties and is green and environment-friendly.

The present application relates to the technical field of wood-plastic floor, and more particularly to an aging-resistant environment-friendly floor based on biomass modification and a preparation method thereof; the present application discloses an aging-resistant environment-friendly floor based on biomass modification and a preparation method thereof, which introduces a low-temperature solidifiable bio-based resin, i.e., bio-based benzoxazine, and forms a strong solidification layer by concentrating the low-temperature solidifiable bio-based benzoxazine resin on the surface layer of the floor, and the strong solidification layer is combined with an unmodified environment-friendly core layer, so that the shortcomings of poor water resistance, insufficient heat aging resistance and poor dimensional stability of the existing biomass-based environment-friendly floor are solved.

This invention discloses an automated detection and grouting repair conical drill bit for dam conical drilling vehicles, belonging to the field of dam maintenance technology. It includes a drill bit body, an electrical detection component, a multi-source information acquisition component, and a repair component. The front end of the drill bit body has a drilling structure. The electrical detection component, located on the drilling structure, is used to collect real-time ground electrical parameters, including conductivity parameters, during the drilling process. The multi-source information acquisition component, located on the drill bit body, is used to collect real-time biological activity characteristic information within the ground during drilling. The repair component, located on the drill bit body and signal-connected to the multi-source information acquisition component, can release repair material to the target location based on the biological activity characteristic information. This invention achieves integrated, automated, and precise detection and repair of hidden cavities of harmful animals within dams.

This invention discloses a sludge increment method based on bioaugmentation in wastewater treatment processes, relating to the field of wastewater biological treatment technology, aiming to fill the gap in existing sludge increment methods based on bioaugmentation in wastewater treatment processes. The key technical points of this invention include: collecting wastewater treatment sludge; using a HiCS process to enrich, separate, and purify sludge increment bioaugmentation strains under alternating saturation-starvation environments; verifying and screening the efficacy of the sludge increment bioaugmentation strains based on the tCOD and sCOD concentrations in the sludge increment bioaugmentation strain culture system to obtain candidate strains for sludge increment bioaugmentation microbial communities; identifying the candidate strains and further screening them to construct a binary composite sludge increment bioaugmentation microbial community composed of two candidate strains from different species in an optimal ratio; and incrementing sludge based on the obtained bioaugmentation microbial community.

The invention relates to energy-storing, insulated block bricks and a production method thereof that combine olive pomace waste with biopolymers in order to solve critical problems in sustainable construction materials. The insulated block brick subject to the invention responds to the demand for sustainable building materials with high energy storage performance by providing enhanced insulation and energy efficiency. Olive pomace, which is a waste product of olive oil production, is subjected to certain pre-treatment processes and combined with a polymer matrix, thereby providing a building block that not only ensures effective insulation but also stores thermal energy and enables improved temperature regulation within buildings. This innovative building material not only provides insulation but also regulates indoor temperatures by storing thermal energy. Due to its thermal energy storage property, the block bricks absorb and store heat during warm periods and release this energy during cold periods, thereby providing energy savings. This feature contributes to energy efficiency by reducing the heating and cooling requirements of buildings. The production process includes homogeneously combining olive pomace and brick powder using mechanical mixers, adding a biopolymer and a binding polymer, and subsequently pouring the mixture into molds and drying it. This simple and low-cost method provides an environmentally friendly and economical production process. Through a circular economy approach, it contributes to the utilization of agricultural wastes and to environmental sustainability objectives. As a result, energy-storing insulated block bricks produced from waste olive oil pomace meet a critical need for sustainable construction materials. This material, which is lightweight, thermally efficient, and durable, provides both energy savings and environmental sustainability. The innovative material combination and production method offer an economically and ecologically effective solution by reducing the carbon footprint.

The application discloses a marsh habitat multi-element integrated promotion method based on biological difference requirements, and belongs to the technical field of wetland ecological restoration. The method first carries out biological resource investigation and water quality monitoring on the target marsh area, establishes the corresponding relationship between the biological community life cycle stage and the habitat element demand, and then divides the area into a clear water structure type habitat promotion area and a food supply enhancement area. In the clear water promotion area, complementary submerged plant combinations are used for restoration, and in the food supply enhancement area, local fish stocking is implemented by constructing a containment unit, and the water eutrophication state is monitored in real time. The effect evaluation is completed through regular ecological monitoring. The application is oriented to biological differentiation requirements, cooperatively regulates water quality, food supply and habitat structure, has stronger restoration accuracy and stability, can effectively improve the suitable living conditions of the key life cycle of multiple types of organisms, and optimizes the structure and function of the marsh wetland ecosystem.