7results about How to "Many gaps" patented technology

The pressurization and yield increase device comprises a first natural gas pipeline and a second natural gas pipeline which are obliquely arranged, the first natural gas pipeline is located on the upper side of the second natural gas pipeline, and a plurality of gas holes are formed in the side portion of the first natural gas pipeline and the side portion of the second natural gas pipeline. A fan is arranged at an upper opening of the natural gas pipeline I; the natural gas collecting device has the technical effect of improving the natural gas collecting capacity.

The invention provides an MWCNTs-Au electrochemical biosensor based on RPA-CRISPR as well as a preparation method and application of the MWCNTs-Au electrochemical biosensor, and belongs to the technical field of preparation of electrochemical biosensors and detection of pathogenic bacteria of dairy products. The electrochemical biosensor disclosed by the invention comprises a multi-walled carbon nanotube-nanogold-hairpin nucleotide probe modified silk-screen printing carbon electrode and a CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-crRNA-Target DNA (Deoxyribose Nucleic Acid) ternary complex, the CRISPR-crRNA-Target DNA ternary complex is assembled on the surface of the multi-walled carbon nanotube-nanogold-hairpin nucleotide probe modified silk-screen printing carbon electrode, and the CRISPR-crRNA-Target DNA ternary complex is assembled on the surface of the multi-walled carbon nanotube-nanogold-hairpin nucleotide probe The electrochemical biosensor shows wide linear response in a range of 1.04 * 10 < 1 > to 1.04 * 10 < 8 > CFU / mL, and the detection limit is as low as 3 CFU / mL; and the method has good practicability in detection of staphylococcus aureus.

This invention provides a method for preparing cellulose materials that delay CO2 release from water, belonging to the field of carbon emission reduction applications. It involves modifying cellulose materials with amine groups to form biodegradable cellulose materials loaded with tertiary or secondary amine groups. The epoxidation grafting method in this invention achieves cellulose modification through alkali treatment, epoxidation, and amination grafting; the glutaraldehyde crosslinking method uses glutaraldehyde as a crosslinking agent to connect the cellulose material and organic amines to achieve cellulose modification. This method further increases the residence time of CO2 in water by adsorbing and converting CO2. Compared with unmodified cellulose materials, the modified material can reduce the amount of CO2 released from water by more than 60%, which helps to construct a CO2 slow-release system in water and can assist in improving the actual utilization efficiency of CO2 gas by microorganisms.

The invention discloses an antibacterial air filtering material as well as a preparation method and application thereof. The preparation method comprises the following steps: opening and carding low-melting-point fibers and 2D fibers, and then conveying the fibers and the 2D fibers into a lapping machine to lay a fiber net; conveying the fiber net to a hot pressing roller for heating, pressing and shaping to obtain filter base cloth; the filtering base cloth is introduced into a melt-blown line spraying shaft; polypropylene particles and a silver ion antibacterial agent are mixed and then put into a heating bin for melt-blowing, melt-blown polypropylene fibers adhere to the outer surface of the filter base cloth, and a PP melt-blown layer is formed; the air filter cloth is obtained; spraying an antibacterial viscose solution on the PP melt-blown layer of the air filter cloth at high pressure; the air filter cloth is conveyed to drying equipment to be dried and shaped, and edge cutting and rolling are conducted. The air filtering material has a double-layer structure with a fluffy upper layer and a dense lower layer, and has antibacterial and antiviral functions, and the filter cloth can still keep high-efficiency filtering and antibacterial effects after being washed repeatedly.

The invention provides a novel high-phosphorus carbon-based fertilizer special for corn and a preparation method of the novel high-phosphorus carbon-based fertilizer, and belongs to the technical field of fertilizers special for corn. The invention provides a novel high-phosphorus carbon-based special fertilizer for corn. The novel high-phosphorus carbon-based special fertilizer comprises the following components in parts by weight: 35-45 parts of urea, 15-25 parts of a high-phosphorus raw material, 5-15 parts of charcoal, 10-20 parts of potassium sulfate and 5-15 parts of a calcium magnesium phosphate fertilizer. According to the invention, by adding the high-phosphorus raw material and combining the biomass charcoal, the loss speed of phosphorus after being applied into soil is slowed down and the utilization rate of the fertilizer is improved by utilizing the characteristics of abundant gaps, strong adsorption capacity and the like of the biomass charcoal while supplementing the insufficient phosphorus.

This application provides a pine cone-shaped photothermal evaporator and its preparation method, relating to the field of solar seawater desalination technology. The preparation method utilizes a silica-polypyrrole double-shell structure design to fabricate PPy-PCMs microcapsules that possess both high photothermal conversion efficiency across the entire spectrum and stable, reversible phase change heat storage function. A composite membrane is obtained by sequentially spraying a nanofiber suspension and a PPy-PCMs dispersion onto a substrate. The composite membrane is then cut into strips and radially fixed to the surface of a hydrophilic cotton rod, assembling them to form a biomimetic pine cone-shaped photothermal evaporator. This biomimetic pine cone-shaped photothermal evaporator exhibits stable structure, leak-proof and heat-resistant properties, excellent light absorption efficiency, and low thermal conductivity. It maintains high evaporation performance under both light and dark environments, demonstrates significant desalination effects, and maintains stable operation even in high-salinity water bodies, providing an efficient solution for all-weather water purification.

The invention relates to the technical field of water treatment, and discloses a method for degrading new pollutants by activating peracetic acid based on an amino-modified iron coordination polymer. The amino-modified iron coordination polymer used in the present invention has a large specific surface area and many voids, and can adsorb new pollutants. The surface of the amino-modified iron coordination polymer in the present invention has abundant electron transfer channels, and can continuously and efficiently activate peracetic acid to produce a large number of surface high-valent iron sites in water. At the same time, the amino-modified iron coordination polymer can adsorb new pollutants, and the generated high-valent iron can be quickly oxidized and degraded through double electron transfer, overcoming the disadvantage that the existing metal organic framework material activated persulfate or peracetic acid in the water treatment technology has an unsatisfactory effect on degrading organic pollutants; and in the degradation process, the generated high-valent iron has a good anti-interference ability to common ions and organic matter in actual sewage.