Porous adsorption structure with synergistic surface microstructure and water treatment device

Abstract

The utility model discloses a surface microstructure synergistic porous adsorption structure and a water treatment device, the surface microstructure synergistic porous adsorption structure comprises a main body, the main body is provided with a first surface and a second surface opposite to each other, and a water channel communicated with the first surface and the second surface, and the water channel is used for water molecules to pass through. The first surface can absorb light and heat. The porous adsorption structure absorbs water and absorbs light and heat, so that the absorbed water is evaporated into water vapor, the water vapor is condensed and collected, separation of clear water and impurities is achieved, and the separation process is efficient and environmentally friendly. The device is applied to the field of water treatment.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a porous adsorption structure and water treatment device with enhanced surface microstructure. Background Technology

[0002] Rapid societal development has brought about severe water pollution and climate change, leading to a continuous increase in people's demand for water resources, while freshwater resources remain extremely limited. Seawater desalination technology, as a crucial measure to address water scarcity and ensure water security, has become a cutting-edge and hot topic of research both domestically and internationally. Promoting the high-quality and sustainable development of the seawater desalination industry and advancing its large-scale utilization are essential. It is estimated that by 2025, the total national seawater desalination capacity will reach over 2.9 million tons / day, with an additional capacity of over 1.25 million tons / day. This demonstrates the enormous potential of the seawater desalination industry, and its rapid development in the near future is foreseeable.

[0003] Currently, the main technologies for seawater desalination include reverse osmosis, distillation, multi-stage flash evaporation, and electrodialysis. However, these traditional seawater desalination technologies generally suffer from drawbacks such as the large-scale use of chemical reagents, low yield, and high cost, causing serious pollution to the ocean and greatly limiting the further development and application of seawater desalination technology. Solar-driven photothermal interface seawater desalination and purification technology utilizes photothermal conversion to achieve interface heating of water, realizing a green energy-dominated seawater desalination process, which is currently the mainstream development direction of seawater desalination technology. However, photothermal interface evaporation materials, as an important component of solar interface evaporation technology, currently generally suffer from problems such as high manufacturing costs, low efficiency, heavy pollution during the manufacturing process, and easy secondary pollution of water bodies. Therefore, how to directly utilize biological resources to develop more efficient, low-cost, green, and biodegradable photothermal interface seawater desalination materials has become an important way to solve the bottleneck problems currently faced by photothermal interface evaporation materials. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a porous adsorption structure with enhanced surface microstructure, which can treat water in a green, environmentally friendly, clean, and efficient manner.

[0005] A water treatment device with a porous adsorption structure that enhances the surface microstructure described above is also proposed.

[0006] The porous adsorption structure with enhanced surface microstructure according to the first aspect of the present invention includes:

[0007] The main body has a first surface and a second surface facing away from each other, and a water channel connecting the first surface and the second surface, the water channel being used to allow water molecules to pass through, and the first surface being capable of absorbing light and heat.

[0008] The porous adsorption structure with enhanced surface microstructure according to the first aspect of the present invention has at least the following beneficial effects: when the porous adsorption structure is placed on the surface of water to be treated, the main body has water channels for water molecules to pass through, and the main body also absorbs heat through the first surface to raise the temperature of the main body, causing the clear water to evaporate, while other impurities remain in the unevaporated water, thus achieving the separation of clear water from other impurities; the heat absorption of the first surface also increases the evaporation rate of water molecules in the main body, improving the separation and treatment efficiency; the porous adsorption structure mainly utilizes photothermal separation, making the separation and treatment more green and environmentally friendly.

[0009] According to some embodiments of the present invention, the first surface is provided with a plurality of evaporation protrusions.

[0010] According to some embodiments of the present invention, the protrusion is nipple-shaped.

[0011] According to some embodiments of the present invention, the first surface is black or dark gray.

[0012] According to some embodiments of this utility model, the outer surface of the main body is black or dark gray.

[0013] A water treatment apparatus according to a second aspect embodiment of the present invention includes:

[0014] A container having a water cavity for storing water, the container being able to transmit light into the water cavity;

[0015] The porous adsorption structure with enhanced surface microstructure described in the first embodiment is disposed within the water cavity and can float on the water surface within the water cavity. The second surface is located below the first surface, and the first surface can be irradiated by light to evaporate water.

[0016] A condenser, connected to the top of the housing, is used to condense evaporated water vapor;

[0017] A water collection device, connected to the condenser, is used to collect the water vapor condensed by the condenser.

[0018] The water treatment device according to the second aspect of the present invention has at least the following beneficial effects: the water to be treated is contained in the container, the porous adsorption structure is placed inside the container and floats on the surface of the water to be treated, the porous adsorption structure absorbs the light passing through the container, evaporates the water in the container to form water vapor, the water vapor rises and encounters the condenser, is condensed by the condenser, and is collected by the clean water collection device, thus completing the collection of clean water, and the clean water separation is environmentally friendly and efficient.

[0019] According to some embodiments of the present invention, it further includes: an auxiliary floating component capable of floating on the water surface within the water cavity, wherein the porous adsorption structure is connected to the auxiliary floating component;

[0020] The porous adsorption structure is configured such that, when floating on the water surface via the auxiliary floater, the bottom surface of the porous adsorption structure is in contact with the water.

[0021] According to some embodiments of the present invention, the top surface of the auxiliary floating component is provided with a mounting through hole, and the porous adsorption structure is installed within the mounting through hole.

[0022] According to some embodiments of the present invention, the receiving member is disposed inside the water collecting member, and the condensing member is disposed inside the water collecting member and covered by the receiving member, and the condensing member is light-transmitting.

[0023] According to some embodiments of the present invention, the condenser is inclined and includes a first end and a second end below the first end, the first end being connected to the top of the receiving member and the second end being connected to the clean water collecting member.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of a porous adsorption structure with enhanced surface microstructure according to an embodiment of the present invention.

[0027] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of a water treatment device according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of another embodiment of the water treatment device according to one embodiment of the present invention.

[0030] Icon labels:

[0031] Porous adsorption structure 1000;

[0032] Body 100; First surface 110; Evaporation protrusion 111; Second surface 120;

[0033] 2000 containers;

[0034] Condensing component 3000;

[0035] 4000 clean water collection components. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Reference Figures 1 to 4 As shown, the first aspect of this utility model proposes a porous adsorption structure 1000 with enhanced surface microstructure, comprising: a main body 100, the main body 100 having a first surface 110 and a second surface 120 facing away from each other, and a water channel connecting the first surface 110 and the second surface 120, the water channel being used for water molecules to pass through, and the first surface 110 being capable of absorbing light and heat. The porous adsorption structure 1000 absorbs water and absorbs light and heat, causing the absorbed water to evaporate into water vapor, which is then condensed and collected, achieving the separation of clean water and impurities. The separation process is efficient and environmentally friendly.

[0041] It is understood that the main body 100 is made of a mixture of various biomass, including wood flour, bio-based polymer materials, and bio-melanin. In this embodiment, the bio-based polymer material is starch, and the bio-melanin is cuttlefish ink. The bio-melanin is used to dye the surface of the main body 100 black, thereby improving the photothermal absorption effect of the main body 100. As another implementation, a black substance can be coated on the first surface 110 of the main body 100 to improve the photothermal absorption efficiency of the first surface 110.

[0042] The specific manufacturing steps of the main body 100 include: First, wood flour, bio-based polymer materials, and bio-melanin are mixed in a certain proportion and premixed in a mixing machine. Specifically, wood flour, starch, and cuttlefish ink are mixed in a certain proportion and premixed in the mixing machine. Mechanical premixing ensures that the materials are fully stirred and mixed, ensuring that the wood flour is dispersed into the starch matrix and that the cuttlefish ink fully penetrates the surface of the polymer material and the interparticle spaces. The porous adsorption structure 1000 exhibits disorder within this structure. This improves the coloring effect of the cuttlefish ink on the main body 100, making the main body 100 black and enhancing its absorption of light and heat. The wood flour is a powder made from commonly used wood, including but not limited to agricultural and forestry resources such as straw, branches, and bamboo, as well as agricultural and forestry waste such as dead leaves.

[0043] Secondly, the mixture is heated in a water bath to obtain a gelatinized blend;

[0044] Next, the gelatinized blend is vacuum dried to control its moisture content at a certain value, and then low-temperature molding is performed to obtain a carbonized precursor. Under low-temperature carbonization, wood flour, starch, and squid ink will release some gases (carbon dioxide produced by wood flour and starch; volatile organic compounds produced by wood flour and squid ink; residual water vapor in the material). These gases will cause the porous adsorption structure 1000, which is expanded by restricted foaming, to be densely covered with various fine channels. Combined with the wood flour uniformly distributed in the porous adsorption structure 1000, which forms micro-nano pores due to the smaller molecular volume after carbonization, a large number of intersecting pore paths can be constructed into capillary self-evaporation channels, that is, water channels are formed in the main body 100, which further enhances the evaporation and purification effect of the porous adsorption structure 1000 after photothermal conversion.

[0045] Finally, the carbonized precursor is molded. The mold is a non-overflowing compression mold, meaning that the inner cavity size of the mold is slightly larger than the sample size. The mold will not compact the carbonized precursor, which can effectively preserve the water channels in the main body 100.

[0046] It is worth understanding that when the porous adsorption structure 1000 is placed on the surface of the water to be treated, the main body 100 has water channels inside to allow water molecules to pass through. The main body 100 also absorbs heat through the first surface 110 to raise the temperature of the main body 100, causing the clear water to evaporate, while other impurities remain in the unevaporated water, thus achieving the separation of clear water from other impurities. The heat absorption of the first surface 110 also increases the evaporation rate of water molecules inside the main body 100, improving the separation and treatment efficiency. The porous adsorption structure 1000 mainly utilizes photothermal separation, making the separation and treatment more green and environmentally friendly.

[0047] Reference Figure 1 and Figure 2As shown, in some specific embodiments of this utility model, the first surface 110 is provided with a plurality of evaporation protrusions 111.

[0048] It is worth understanding that the inner surface of the mold cavity has a forming area for forming surface microstructures. By forming surface microstructures through the forming area, the surface area of ​​the first surface 110 is increased, the contact area between water molecules and air in the main body 100 is increased, and the light-receiving area of ​​the first surface 110 is also increased, thereby increasing the amount of light and heat absorption and improving the evaporation efficiency of water molecules.

[0049] In this embodiment, the microstructure consists of multiple evaporation protrusions 111. Specifically, the evaporation protrusions 111 are papillary. When the evaporation protrusions 111 are exposed to light, they easily refract light onto the surface of another evaporation protrusion 111, forming a light-trapping structure. This makes the microstructure absorb light more efficiently, and the first surface 110 of the main body 100 has a higher photothermal conversion efficiency under light.

[0050] It should be noted that multiple evaporation protrusions 111 can also be provided on the second surface 120 and other outer surfaces of the main body 100 to improve the overall photothermal conversion efficiency of the main body 100.

[0051] The fabrication of the porous adsorption structure 1000 is illustrated below with a specific embodiment. The following content does not constitute a specific limitation on this utility model.

[0052] Weigh out 30g of pine powder, 24g of starch, and 6g of cuttlefish powder, and dissolve them in 50ml of deionized water while stirring to obtain a premix.

[0053] The above premix was subjected to water bath heating treatment at a temperature of 90°C for 15 minutes to obtain a gelatinized blend.

[0054] The above gelatinized blend is placed in a mold and extruded to set its shape.

[0055] The gelatinized blend after shaping was placed in a vacuum dryer for vacuum drying at a temperature of 80°C to obtain a dried mixture.

[0056] The dried mixture was placed in a molding press for molding treatment. The molding time was 10 minutes, the molding temperature was 180°C, and the molding pressure was 10 MPa to obtain a carbonized precursor. The strip-shaped wood flour was bound together by starch, and the squid powder particles filled the gaps.

[0057] The aforementioned carbonized precursor was placed in a mold with surface microstructures and sealed. It was then placed in a muffle furnace for low-temperature carbonization and expansion molding. The low-temperature carbonization treatment temperature was 350℃, and the treatment time was 2 hours, resulting in a porous adsorption structure 1000 made from all-biomass with a continuously interconnected micro-nano pore structure internally and light-trapping microstructures on the surface. This material is hydrophilic.

[0058] The porous adsorption structure 1000, after low-temperature carbonization, possesses numerous continuous and interconnected micro- and nano-scale pore channels, providing pathways for water transport and purification. This all-biomass porous adsorption structure 1000 exhibits high water absorption capacity and evaporation purification efficiency. The surface microstructure increases the contact area with sunlight and reflects sunlight multiple times, enhancing light refraction and absorption, further improving photothermal conversion efficiency. Simultaneously, the continuous micropores in this all-biomass porous adsorption structure 1000 enhance its water absorption capacity through capillary action, thereby increasing its evaporation efficiency.

[0059] Reference Figure 3 and Figure 4 As shown, a second aspect of this utility model provides a water treatment device, comprising: a container 2000, a porous adsorption structure 1000 with enhanced surface microstructure according to the first aspect embodiment, a condenser 3000, and a clean water collection device 4000. The container 2000 is used to store water and has a water cavity for storing water. The container 2000 is transparent to light into the water cavity. The porous adsorption structure 1000 is disposed inside the water cavity and can float on the water surface inside the water cavity. The second surface 120 is located below the first surface 110, and the first surface 110 can be irradiated by light to evaporate water. The condenser 3000 is connected to the top of the container 2000 and is used to condense the evaporated water vapor. The clean water collection device 4000 is connected to the condenser 3000 and is used to collect the water vapor condensed by the condenser 3000.

[0060] The container 2000 is made of a transparent material, such as colorless glass or colorless plastic, so that light can pass through the container 2000 and irradiate the surface of the porous adsorption structure 1000 inside the water cavity.

[0061] It is worth understanding that the water to be treated is contained in the container 2000, and the porous adsorption structure 1000 is placed inside the container 2000 and floats on the surface of the water. The porous adsorption structure 1000 absorbs the light passing through the container 2000, evaporates the water in the container 2000 to form water vapor, and the water vapor rises and encounters the condenser 3000, where it is condensed and collected by the clean water collection device 4000, thus completing the collection of clean water. Moreover, the clean water separation is environmentally friendly and efficient.

[0062] Reference Figure 3 and Figure 4As shown, in some specific embodiments of this utility model, the water treatment device further includes: an auxiliary floating component capable of floating on the water surface within the water cavity, and a porous adsorption structure 1000 connected to the auxiliary floating component; wherein, the porous adsorption structure 1000 is configured such that when it floats on the water surface through the auxiliary floating component, the bottom surface of the porous adsorption structure 1000 is in contact with the water.

[0063] It is understandable that by providing buoyancy through auxiliary floating components, the floating of the porous adsorption structure 1000 becomes more reliable. Furthermore, the first surface 110 of the porous adsorption structure 1000 can maintain a distance from the water surface, so that the temperature of the first surface 110 after absorbing light and heat is not easily affected by the water temperature in the water cavity, thereby improving the evaporation effect of the first surface 110 and enhancing the stability of the water evaporated by the porous adsorption structure 1000.

[0064] In this embodiment, the auxiliary float is made of foam, and the top surface of the auxiliary float is provided with a mounting through hole. The porous adsorption structure 1000 is installed in the mounting through hole. The porous adsorption structure 1000 is embedded in the mounting through hole of the auxiliary float, making the floating of the porous adsorption structure 1000 more stable.

[0065] Reference Figure 3 As shown, in some specific embodiments of this utility model, the receiving member 2000 is disposed inside the clean water collecting member 4000, and the condensing member 3000 is disposed inside the clean water collecting member 4000 and covered by the receiving member 2000. The condensing member 3000 is transparent to light.

[0066] The condenser 3000 is made of a transparent material, such as colorless glass or colorless plastic, to ensure that light can pass through the condenser 3000 and through the housing 2000 to irradiate the surface of the porous adsorption structure 1000.

[0067] In this embodiment, the container 2000 is a small circular petri dish, the water collection container 4000 is a medium to large circular petri dish larger than the container 2000, and the condenser 3000 is a hemispherical cover that covers the water collection container 4000 and also covers the container 2000. The opening of the condenser 3000 is circular, and the opening contacts the bottom wall of the water collection container 4000 and surrounds the container 2000. When the porous adsorption structure 1000 in the container 2000 absorbs light and heat, the water adsorbed by the porous adsorption structure 1000 evaporates into water vapor. The water vapor rises automatically until it comes into contact with the condenser 3000 and condenses into water droplets. The water droplets slide down the concave wall of the condenser 3000 to the opening of the condenser 3000 and enter the water collection container 4000, thus achieving collection by the water collection container 4000.

[0068] The container 2000 can also be a cylindrical beaker, or a square petri dish, square beaker or other shapes. The water collection component 4000 can also be a cylindrical beaker, or a square petri dish, square beaker or other shapes. The condenser 3000 can also be a triangular cover, or a multi-angled cover with a pointed top and four or more edges.

[0069] Reference Figure 4 As shown, in some specific embodiments of this utility model, the condenser 3000 is inclined and includes a first end and a second end lower than the first end. The first end is connected to the top of the receiving member 2000, and the second end is connected to the clean water collecting member 4000.

[0070] In this embodiment, the container 2000 is a beaker with a conical cap at the top. The first end of the condenser 3000 is connected to the apex of the conical cap, which can be a cone or a triangular cone. The condenser 3000 is a condenser tube, and the water collection container 4000 is also a beaker. When the porous adsorption structure 1000 in the container 2000 absorbs light and heat, the water adsorbed by the porous adsorption structure 1000 evaporates into water vapor. The water vapor automatically rises into the first end of the condenser 3000 and is condensed by the condenser 3000. After the water is condensed, it flows from the first end to the second end along the inclined direction of the condenser 3000 and enters the water collection container 4000 from the second end, completing the collection of water.

[0071] The container 2000 can be square or round, or it can be a petri dish or other container. The water collection container 4000 can be square or round, or it can be a petri dish or other container.

[0072] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A porous adsorptive structure for surface microstructure enhancement, characterized by, Comprising: a body having a first surface and a second surface facing away from each other, and a water channel communicating between the first surface and the second surface, the water channel being configured to allow water molecules to pass through, the first surface being capable of absorbing light heat.

2. The surface microstructure augmented porous adsorptive structure of claim 1, wherein: The first surface is provided with a plurality of evaporation protrusions.

3. The surface microstructure augmented porous adsorptive structure of claim 2, wherein: The protrusions are in the shape of papillae.

4. The surface microstructure augmented porous adsorptive structure of claim 1, wherein: The first surface is black or dark gray.

5. The surface microstructure-empowered porous adsorptive structure according to claim 4, wherein: The outer surface of the body is black or dark gray.

6. A water treatment device, characterized by Comprising: a containing member having a water cavity for storing water, the containing member being capable of transmitting light into the water cavity; a surface microstructure enhanced porous adsorption structure according to any one of claims 1 to 5, being arranged in the water cavity and being capable of floating on the water surface in the water cavity, the second surface being below the first surface, the first surface being capable of being irradiated by light to evaporate water; a condensing member being communicated with the top of the containing member and being configured to condense the evaporated water vapor; a clean water collecting member being communicated with the condensing member and being configured to collect the water vapor condensed by the condensing member.

7. The water treatment device of claim 6, wherein Further comprising: an auxiliary floating member capable of floating on the water surface in the water cavity, the porous adsorption structure being connected to the auxiliary floating member; wherein the porous adsorption structure is configured to have its bottom surface in contact with the water surface when floating on the water surface by the auxiliary floating member.

8. The water treatment device of claim 7, wherein: The top surface of the auxiliary floating member is provided with a mounting through hole, and the porous adsorption structure is mounted in the mounting through hole.

9. The water treatment device of claim 6, wherein: The containing member is arranged in the clean water collecting member, the condensing member is arranged in the clean water collecting member to cover the containing member, and the condensing member is capable of transmitting light.

10. The water treatment device of claim 6, wherein: The condensing member is arranged obliquely and comprises a first end and a second end lower than the first end, the first end being communicated with the top of the containing member, and the second end being communicated with the clean water collecting member.

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