5results about How to "Efficient desalination" patented technology

This invention provides a seawater desalination device for ocean-going fishing vessels. The device includes: a base plate; a seawater tank fixedly installed on the base plate; a filter box fixedly installed on top of the seawater tank; a pumping pipe mounted on the filter box; a submersible pump installed at one end of the pumping pipe; a filtration mechanism mounted on the filter box for filtering seawater; and a seawater desalination mechanism mounted on top of the base plate for desalinating seawater. The seawater desalination device for ocean-going fishing vessels provided by this invention has the advantages of facilitating quick installation, disassembly, and replacement of reverse osmosis filter elements, and providing seawater filtration functionality.

The application discloses a solar photo-thermal foam for treating salt-containing organic wastewater and a preparation method thereof. The application solves the problems of poor desalination effect, low degradation ability for organic pollutants, especially volatile organic pollutants, and easy concentration of organic pollutants in the bottom liquid in the process of treating salt-containing organic wastewater by solar photo-thermal treatment. The application comprises the following steps: preparing a photo-thermal foam by loading a copper-cobalt binary metal catalyst on a nickel-based metal foam, and using the photo-thermal foam to treat water in a device for treating salt-containing organic wastewater by solar photo-thermal treatment. The porous foam substrate is used to construct a high-performance photo-thermal foam with a special morphology, and under the synergistic action of a multi-metal catalytic system, efficient desalination and catalytic persulfate degradation of organic pollutants in the bottom liquid and condensate are realized in the process of treating salt-containing organic wastewater by solar photo-thermal treatment, so that high-quality pure water is obtained. In addition, the photo-thermal foam catalyst is simple to recover and can effectively inhibit metal leaching toxicity, and has good repeated stability.

The application discloses a kind of polyionic liquid modified self-supporting biochar electrode and its application in the field of capacitive deionization, belong to water treatment field.The application is deposited in self-supporting biochar electrode BSC surface by 1-vinyl-3-ethyl imidazole double trifluoromethanesulfonyl imidate salt ([VEIM][NTf2]), and polyionic liquid modified self-supporting biochar electrode is obtained;Afterwards, polyionic liquid modified self-supporting biochar electrode is used as electrode, and capacitive deionization desalination is carried out, and the salt adsorption capacity SAC of unit area A It can be as high as 0.921mg / cm 2 ; Strength is enough to withstand water flow impact in CDI operation.

The application belongs to the technical field of interfacial evaporation materials, and particularly relates to a graphene composite hydrogel interfacial evaporation material and a preparation method and application thereof. The composite hydrogel interfacial evaporation material comprises a hydrogel matrix and nitrogen-doped graphene oxide, and the nitrogen-doped graphene oxide is embedded into the hydrogel matrix through covalent bonding and hydrogen bonding. The hydrogel matrix comprises polyvinyl alcohol and polyethyleneimine. The hydrogel matrix has a double-network composite structure. Through construction of a double-polymerization network and directional water channels, the water evaporation rate is improved. The preparation process is simple, green and environmentally friendly. The obtained hydrogel has excellent photothermal performance, can realize evaporation enthalpy reduction and efficient seawater evaporation, and has good desalination effect on seawater.

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.