10results about How to "Efficient desalination" patented technology

The invention discloses a marine seawater desalination device, and relates to the technical field of seawater treatment devices.The marine seawater desalination device comprises a pretreatment tank, a seawater temporary storage bin, a distillation bin, a condenser and a fresh water collection bin, the pretreatment tank communicates with a water inlet pipe and a first water conveying pipe, and a water suction pump is arranged on the water inlet pipe and used for sucking seawater into the pretreatment bin; a water filtering device for filtering seawater is arranged in the pretreatment tank, the first water conveying pipe is communicated with a seawater temporary storage bin, the seawater temporary storage bin is communicated with the distillation bin through a second water conveying pipe, a water supply pump is arranged on the second water conveying pipe, and a heating module for heating seawater is arranged in the distillation bin; the top of the distillation bin is communicated with a steam pipeline, the steam pipeline is communicated with a condenser and is used for condensing steam, the condenser is communicated with a fresh water pipeline, and the fresh water pipeline is communicated with a fresh water collecting bin. The sea water desalination device realizes efficient sea water desalination, reduces the occupied area of equipment, and is more suitable for ships.

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 invention provides a comprehensive seawater desalination device combining solar energy and wave energy, and belongs to the technical field of seawater desalination, the comprehensive seawater desalination device comprises a water inlet device, the water inlet device comprises a feeding box, the feeding box is connected with an external seawater inlet pipe, an electrically operated gate is arranged at a water inlet of the feeding box, and when no sun exists, the electrically operated gate is closed; the water inlet device is used for feeding seawater and generating electricity by using the seawater, a solar device and a fresh water device are arranged on the water inlet device, the solar device comprises an adjusting frame, the adjusting frame is rotatably mounted on the feeding box, the solar device is used for absorbing and utilizing solar energy, and the fresh water device comprises a water tank and is used for desalting the seawater. The device can generate electricity through wave energy of seawater and provide power for seawater desalination through the wave energy, so that intermittent water feeding is realized; heating can be performed through the solar panel, and the energy utilization rate is high; the efficient seawater desalination is realized; meanwhile, energy is effectively saved, and solar energy utilization efficiency is improved.

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.

The invention belongs to the field of regenerated silk fibroin purification, and provides a silk fibroin high-salt solution hollow fiber membrane coupling electrodialysis desalination process, which comprises a hollow fiber membrane system and an electrodialysis system, and comprises the following steps: S1, adding a silk fibroin solution to be desalted into the inner side of membrane silk of the hollow fiber membrane system, pure water is arranged on the outer side of a membrane wire of the hollow fiber membrane system, and the membrane wire is a large-aperture membrane wire; s2, after pure water in the hollow fiber membrane system receives salt, hollow fiber membrane saline water is formed; s3, introducing the hollow fiber membrane saline water into an electrodialysis system, and desalting in an electrodialysis membrane stack to form fresh water; s4, introducing fresh water to the outer side of membrane filaments of the hollow fiber membrane system, and circularly carrying out the steps S1 to S4; and S5, concentrating until the concentration of the silk fibroin solution reaches 2-5%. The method has the advantages of reasonable design, continuous filtration production of regenerated silk fibroin, suitability for industrial production, high treatment capacity, capability of realizing efficient desalination, environmental protection and suitability for large-scale popularization.

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 present invention relates to the technical field of solar desalination, and in particular to a Janus photothermal layer and a preparation method thereof, and an evaporator. The present invention etches a Ti3AlC2 precursor by using a mixed solution of LiF and HCl, and then ultrasonically peels off to obtain a single-layer Ti3C2T x MXene; then the hydrogen bonding effect of MXene is used to firmly adsorb MXene on the fabric, and then one side of the fabric is hydrophobically modified using a hydrophobic modifier to construct a Janus structure photothermal layer with asymmetric wettability, which has excellent light absorption and photothermal conversion capabilities; in addition, by constructing an evaporator with a suspension bridge structure using the Janus photothermal layer, it can be used for solar seawater desalination; the suspension bridge structure has good thermal management capabilities, and the evaporator can achieve efficient solar seawater desalination, and has good stability in long-term desalination operation, and can collect salt crystals while producing clean water.

The invention provides a method for desalinating seawater by a solar distillation method, which comprises the following steps of: 1, pretreating the seawater to remove suspended matter impurities in the seawater; 2, injecting the seawater treated in the step 1 into an evaporation pond; thirdly, light is focused through a convex lens on a glass plate on the top of the evaporation pond and penetrates through the seawater in the evaporation pond in the second step, focused light spots irradiate the stone plate, and therefore the stone plate is heated; and 4, after the stone plates in the step 4 absorb heat, transferring the heat to the seawater around the stone plates in the evaporation pond, so that the seawater in the evaporation pond is heated to a boiling state, and then converting water vapor generated by boiling into fresh water through condensation, thereby completing the desalination process of the seawater. Sunlight is focused and converted into high-temperature light spots through the convex lens, stone plates in the evaporation pond and surrounding seawater are directly heated, the energy consumption of seawater desalination is effectively reduced, and the green and environment-friendly desalination process is achieved.