10results about How to "Fast degradation" patented technology

The present invention relates to a marine biodegradation speed improver for a biodegradable resin. The present invention provides a marine biodegradation speed improver for a biodegradable resin, which contains 16-hydroxyhexadecanoic acid.

This invention proposes an environmentally friendly and biodegradable polyolefin heat shrinkable film and its preparation process, comprising a three-layer co-extruded outer layer, a core layer, and an inner surface layer; the outer and inner surface layers are composed of the following raw materials by weight: 65-75 parts of linear low-density polyethylene A, 15-25 parts of polypropylene carbonate, 10-15 parts of chitosan, 2-5 parts of bamboo fiber A, 2-6 parts of maleic anhydride-grafted polyethylene, 1-3 parts of graphene oxide, 0.5-1.0 parts of opening agent, and 1-2 parts of slip agent; the core layer comprises 60-70 parts of linear low-density polyethylene B, 15-20 parts of ethyl acetate, 10-15 parts of starch-grafted modified acrylic monomer, 2-6 parts of calcium phosphate ceramic, 5-10 parts of bamboo fiber B, 2-5 parts of compatibilizer, and 0.5-1 part of antioxidant. The environmentally friendly and biodegradable polyolefin heat shrink film provided by this invention can simultaneously improve the heat shrinkage rate, mechanical properties and degradation efficiency of traditional polyolefin heat shrink film, thereby achieving performance improvement of biodegradable heat shrink film and controllable degradation.

The invention provides an acellular matrix fiber woven scaffold as well as a preparation method and application thereof, and belongs to the technical field of biomedical materials. The acellular matrix fiber woven scaffold comprises a woven structure unit, wherein the woven structure unit comprises warp yarns and a plurality of acellular matrix fiber weft yarns; the acellular matrix fiber is prepared by cutting an acellular matrix paper-based material at equal intervals; the plurality of acellular matrix fiber wefts are arranged in parallel according to a bionic trend and are interwoven and fixed through the warps, so that a bionic pattern simulating natural tissue fiber arrangement is formed in the weaving structure unit. The acellular matrix fiber scaffold is prepared by innovatively applying a weaving technology, the scaffold can improve the cell loading efficiency, is beneficial to self-repair and reconstruction of damaged tissues, provides suitable survival and growth conditions for cells, and has good application prospects in the field of biomedical engineering, especially in the aspects of tissue repair and regenerative medicine. And huge application potential is shown.

The present application relates to the technical field of agricultural product quality improvement, and specifically provides a method for improving the content of tocopherol in sesame by using diquat. It is found for the first time that diquat can improve the content of tocopherol in sesame. The method provided by the present application comprises: spraying a diquat solution 5-15 days before the harvesting of sesame; the diquat solution is a 20% diquat water agent with a volume percentage concentration of 0.167%-0.5%, and the spraying amount of the diquat solution is 10-30 L per mu. The present application provides a reference for improving the content of tocopherol in sesame in production and technical support for the creation of high-quality edible vegetable oil.

The application discloses a system and method for solar oxidation degradation of organic wastewater and hydrogen production, and the whole system comprises a membrane separation subsystem, a solar heat collection subsystem and a multi-electrode reverse electrodialysis subsystem. The system takes solar energy as a driving force, takes high-salt organic wastewater as a working solution, realizes hydrogen production and organic matter degradation by means of a concentration difference of the working solution, separates the high-salt organic wastewater into high-salt wastewater and organic wastewater, and realizes effective utilization and efficient degradation of the high-salt organic wastewater by combining solar energy and reverse electrodialysis. That is, the system can completely mineralize the organic matter in the wastewater and produce high-purity hydrogen, and realizes efficient and high-quality utilization of solar energy.

The invention discloses a preparation method and application of an organic waste fermentation inoculant, and belongs to the technical field of microorganisms. The organic waste fermentation inoculant is prepared from the following raw materials in parts by weight: 1 to 3 parts of bacillus subtilis, 2 to 4 parts of bacillus amyloliquefaciens, 2 to 3 parts of pseudomonas fluorescens, 4 to 6 parts of streptococcus thermophilus, 5 to 8 parts of lactobacillus delbrueckii subsp. Bulgaricus, 4 to 6 parts of nocardia albicans, 30 to 40 parts of porous activated carbon, 2 to 3 parts of beet extract, 4 to 6 parts of mannitol and 10 to 15 parts of straw waste powder. The organic waste fermentation inoculant can accelerate the degradation speed of organic matters in the composting process and shorten the fermentation time of the organic wastes, and has remarkable advantages in practical application.

This invention discloses a cellulose-based composite bead for activating persulfate to degrade dyes and its preparation method, belonging to the field of water environmental protection. The preparation method includes: 1) preparing rough spherical CuMnO2; 2) preparing a CS-Ca@PEI / CuMnO2 composite bead catalyst; 3) mixing the obtained CS-Ca@PEI / CuMnO2 composite bead catalyst with persulfate and adding it to dye wastewater to degrade the dye wastewater. The catalyst preparation of this invention is simple, uses environmentally friendly biomass as the catalyst carrier, effectively improves the recovery efficiency of powdered catalytic materials, and the synthesized catalyst can efficiently degrade azo dyes, especially Congo red dye.

The invention discloses a septic tank treatment device capable of degrading greasy dirt, and relates to the field of septic tank treatment.The septic tank treatment device comprises a tank body, a separation mechanism used for separating greasy dirt is arranged at the rear end of the right side of the tank body, a filtering mechanism used for filtering oil liquid is arranged at the front end of the right side of the tank body, and a dirt inlet mechanism is arranged in the tank body; one side of the pool body is connected with a degradation pool, the degradation pool is used for degrading oil stains, the separation mechanism comprises a first-stage separation tank, the first-stage separation tank is arranged on one side of the pool body, one side of the first-stage separation tank is communicated with a second-stage separation tank, and heating rods are fixedly connected to the outer sides of the tops of the first-stage separation tank and the second-stage separation tank; ultrasonic vibrators are connected to the middles of the tops of the first-stage separation tank and the second-stage separation tank, sewage pumps are arranged in the first-stage separation tank and the second-stage separation tank and communicate with drainage pipes, drainage valves are installed on the outer walls of the drainage pipes, and an oil drainage pipe is connected to the upper end of the outer wall of the first-stage separation tank.

This utility model discloses a 40mm tear gas smoke-generating riot control round for riot guns, relating to the field of riot control ammunition technology. The utility model includes a projectile assembly with a launching component at its bottom, and the projectile assembly includes an upper projectile body. By employing a high-low pressure chamber staged pressurization structure, the high-pressure chamber first accumulates energy during propellant combustion, then releases it to the low-pressure chamber through a pressure relief hole, propelling the projectile assembly to embed in the rifling and fly at high speed, increasing the range to ≥200m, with a maximum of 400m. This solves the problems of insufficient chamber pressure and limited range caused by the single high-pressure chamber design in existing technologies, meeting the needs of long-range law enforcement. It uses CS instead of CN as the irritant; CS is chemically stable, non-carcinogenic after combustion, has low skin irritation, and degrades quickly, resulting in minimal environmental impact. This solves the problems of toxic residues and health hazards associated with CN irritants in existing technologies, improving the safety of weapon use.

The application provides a method for rapidly degrading petroleum hydrocarbon in high-salt oil-containing wastewater, adopts Pseudomonas Z1 and denitrifying achromobacter M1 for compounding, adds auxiliary liquid to obtain a bacterial agent, the degradation speed of the bacterial agent on petroleum hydrocarbon and the load tolerance of the bacterial agent on COD in wastewater are obviously higher than those of single bacterial species, and the bacterial agent has good salinity adaptability. In actual wastewater biochemical treatment, the bacterial agent can rapidly establish the bacterial community advantage in a small amount and a short time, effectively improves the microbial abundance and diversity in the system, and can achieve a better petroleum hydrocarbon degradation effect in a limited hydraulic retention time in continuous operation.