Surface water antibiotic treatment device and system based on ferroelectricity-free Fenton reaction coupled solar power generation
Through the ferroelectric Fenton reaction coupled solar power generation technology, the modified duckweed biochar is used to degrade antibiotics in surface water by solar-driven, which solves the problems of iron pollution and duckweed reproduction in the electric Fenton reaction, achieving high efficiency and environmental protection water treatment effect.
Patent Information
- Application Number
- CN202420947288.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The electrofenton reaction in the prior art effectively removes pollutants but requires the introduction of iron to cause secondary pollution, and the breeding of duckweed causes harm to the water body.
Using a surface water treatment device that is coupled with solar power generation without ferroelectric Fenton reaction, using modified duckweed biochar as the cathode, the solar-driven electrode unit produces hydroxyl radicals to degrade antibiotics, avoids iron pollution, and provides oxygen through propellers to stir the water surface. .
It achieves efficient degradation of antibiotics in surface water, avoids iron pollution, is cheap, is easy to obtain raw materials, is simple to process, and is easy to maintain.
Smart Images
Figure CN222250180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antibiotic treatment devices, and in particular to a surface water antibiotic treatment device and system based on ferroelectric Fenton reaction coupled with solar power generation. Background Art
[0002] Large volumes of water contaminated with low-concentration antibiotics rely on sewage treatment plants, which consumes huge amounts of time, cost, and transportation. Physical, chemical, and biological methods in in-situ river management have problems such as long cycles, easy repetition, easy introduction of secondary pollution, and resistance gene transfer. Therefore, it is feasible to develop an in-situ water treatment device.
[0003] The electro-Fenton reaction can effectively remove most pollutants, but it requires the introduction of iron, which can easily cause secondary pollution. Duckweed, as a fast-growing aquatic plant, will reproduce in large areas when the water body is eutrophic, causing serious harm to the water body and underwater life. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the electro-Fenton reaction in the prior art can effectively remove most pollutants, but there is a need to introduce iron elements, which easily causes secondary pollution, thereby providing a surface water antibiotic treatment device and system based on iron-free electro-Fenton reaction coupled with solar power generation.
[0005] In order to solve the above technical problems, the utility model provides a surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation, including: a support and a barrel-shaped float, a solar panel, a battery group, an electrode unit, and a propeller. Barrel-shaped floats are provided on both sides of the support, and a solar panel is provided on the top of the barrel-shaped float. The solar panel is connected to the battery group, and the battery group is connected to the electrode unit. There are multiple electrode units, and the multiple electrode units are arranged in the support at intervals. The electrode unit includes an anode and a cathode, and a metal rod. The cathode is provided with duckweed biochar. The metal rod passes through the multiple electrode units. The propeller is arranged in the support and is located at one end of the metal rod.
[0006] Furthermore, one end of the metal rod is connected to the battery pack, and the other end is connected to the cathode.
[0007] Furthermore, the electrode unit also includes a metal plate, which is arranged on the side walls of the plurality of electrode units, one end of the metal plate is connected to the battery pack, and the other end of the metal plate is connected to the anode.
[0008] Furthermore, the anode is a mesh structure.
[0009] Furthermore, the anode is made of stainless steel.
[0010] Furthermore, it also includes an air pump, which is arranged on the outer wall of the support member, and the air pump is connected to an air guide tube, and the air guide tube is arranged corresponding to the electrode unit.
[0011] Furthermore, it also includes a structural ring, which is arranged in the support member and located at both ends of the metal plate.
[0012] Furthermore, it also includes a fairing, which is arranged on the support member and is provided with one end of the propeller.
[0013] Furthermore, it also includes a controller, which is connected to the battery pack and the air pump.
[0014] The utility model also provides a surface water antibiotic treatment system based on ferroelectric Fenton reaction coupled with solar power generation, comprising the surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation.
[0015] The technical solution of the utility model has the following advantages:
[0016] 1. The utility model provides a surface water antibiotic treatment device based on non-ferroelectric Fenton reaction coupled with solar power generation, comprising: a support and a barrel-shaped float, a solar panel, a battery pack, an electrode unit, and a propeller. The support is provided with a barrel-shaped float on both sides, and the top of the barrel-shaped float is provided with a solar panel, the solar panel is connected to the battery pack, and the battery pack is connected to the electrode unit. There are multiple electrode units, and the multiple electrode units are arranged in the support at intervals. The electrode unit includes an anode and a cathode, and a metal rod. The cathode is provided with duckweed biochar. The metal rod passes through the multiple electrode units. The propeller is arranged in the support and is located at one end of the metal rod.
[0017] The treatment device is placed in the surface watershed, and by setting a barrel-shaped float on both sides of the support, the treatment device can be floated half on the water surface and half under the water by using the barrel-shaped float. At the same time, since the barrel-shaped float is provided with a solar panel, the solar panel can absorb solar energy and store it in the battery; since the battery pack is connected to the electrode unit, it provides a power source for the electrode unit, and the electrode unit includes a cathode and an anode, and the metal rod is the rotating shaft of the propeller. When the propeller and the metal rod rotate, the cathode coated with biochar will be driven to rotate together, and the water surface will be stirred to draw in air during the rotation process, providing the required oxygen for the reaction at the cathode.
[0018] The processing device has a plurality of electrode units, and each electrode unit includes a cathode and an anode. Therefore, the reaction adopts a multi-level cathode and anode arrangement, which is different from the normal double electrode, and can make the reaction more complete.
[0019] Among them, the cathode is disc-shaped with modified duckweed biochar stuck on the surface. The device floats on the water surface. Water flows through the device, causing the propeller to rotate. The cathode part exposed on the water surface can stir and absorb oxygen in the air and bring it into the water surface for reaction, solving the problem of gas supply for the reaction. At the same time, it can also play a mixing role to make the adsorption more uniform.
[0020] By using the iron-free electro-Fenton technology and introducing modified duckweed biochar as the cathode, it can replace iron to catalyze hydrogen peroxide to produce hydroxyl radicals for the degradation of antibiotics in surface waters, achieving pollution control with pollution, and avoiding the problem of secondary pollution caused by the introduction of iron. At the cathode, oxygen is reduced to hydrogen peroxide, which is catalyzed by biochar to produce strong oxidizing hydroxyl radicals to degrade antibiotics. The performance of the modified biochar is improved compared to that before modification. At the same time, duckweed is widely available, pollution control with pollution, the process cost is low, the raw materials are easy to obtain, and the processing is simple.
[0021] The biochar is regenerated during the reaction process, which can meet the requirements of continuous adsorption reaction, and the treatment device is easy to maintain.
[0022] 2. The surface water antibiotic treatment device based on the ferroelectric Fenton reaction coupled with solar power generation provided by the utility model also includes an air pump, which is arranged on the outer wall of the support member, and the air pump is connected to the air duct, and the air duct is arranged corresponding to the electrode unit.
[0023] The air pump serves as an auxiliary air supply device and can be started in relatively calm waters. The pumped air enters from the front side of the electrode unit through the air duct, and is driven by the water flow to flow through the entire treatment device to provide the required oxygen for the reaction cathode.
[0024] The utility model summary is provided to introduce a selection of concepts in a simplified form, which will be further described in the following detailed description. The utility model summary is not intended to identify key features or essential features of the present disclosure, nor is it intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 A schematic diagram of the structure of a surface water antibiotic treatment device based on the ferroelectric Fenton reaction coupled with solar power generation provided by the utility model;
[0027] Figure 2 A three-dimensional diagram of a surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation provided by the utility model;
[0028] Figure 3 A top view of a surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation provided by the utility model;
[0029] Figure 4 A schematic diagram of the structure of the electrode unit of the surface water antibiotic treatment device based on the ferroelectric Fenton reaction coupled with solar power generation provided by the utility model;
[0030] Figure 5 A side view of a surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation provided by the utility model;
[0031] Figure 6 This is a schematic structural diagram of the electrode unit of the surface water antibiotic treatment device based on the ferroelectric Fenton reaction coupled with solar power generation provided by the utility model.
[0032] Description of reference numerals:
[0033] 1. Support; 2. Barrel-shaped float; 3. Solar panel; 4. Battery pack; 5. Electrode unit; 6. Propeller; 7. Cathode; 8. Anode; 9. Metal rod; 10. Metal plate; 11. Air pump; 12. Air duct; 13. Structural ring; 14. Fairing; 15. Controller. DETAILED DESCRIPTION
[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0035] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0036] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0037] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.
[0038] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0039] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.
[0040] See also Figures 1 to 6 As shown, the utility model provides a surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation, comprising: a support 1 and a barrel-shaped float 2, a solar panel 3, a battery pack 4, an electrode unit 5, and a propeller 6, wherein barrel-shaped floats 2 are provided on both sides of the support 1, and a solar panel 3 is provided on the top of the barrel-shaped float 2, wherein the solar panel 3 is connected to the battery pack 4, and the battery pack 4 is connected to the electrode unit 5, wherein there are a plurality of electrode units 5, and the plurality of electrode units 5 are arranged at intervals in the support 1, wherein the electrode unit 5 comprises an anode 8 and a cathode 7, and a metal rod 9, wherein duckweed biochar is provided on the cathode 7, and the metal rod 9 penetrates through the plurality of electrode units 5, and the propeller 6 is arranged in the support 1 and is located at one end of the metal rod 9.
[0041] The treatment device is placed in the surface watershed, and by setting a barrel-shaped float 2 on both sides of the support 1, the barrel-shaped float 2 can be used to float the treatment device half on the water surface and half under the water, that is, floating on the water surface. At the same time, since the barrel-shaped float 2 is provided with a solar panel 3, the solar panel 3 can absorb solar energy and store the solar energy in the battery; since the battery pack 4 is connected to the electrode unit 5, it provides a power source for the electrode unit 5, and the electrode unit 5 includes a cathode 7 and an anode 8, and the metal rod 9 is the rotating shaft of the propeller 6. When the propeller 6 and the metal rod 9 rotate, the cathode 7 coated with biochar will be driven to rotate together, and the water surface will be stirred to draw in air during the rotation process, providing the required oxygen for the reaction at the cathode 7.
[0042] The processing device has a plurality of electrode units 5, and each electrode unit 5 includes a cathode 7 and an anode 8. Therefore, the reaction adopts a multi-level arrangement of cathodes and anodes 8, which is different from a normal double electrode and can make the reaction more complete.
[0043] Among them, the cathode 7 is in a disc shape with modified duckweed biochar stuck on the surface. The device floats on the water surface. Water flows through the device, causing the propeller 6 to rotate. The part of the cathode 7 exposed on the water surface can stir and absorb oxygen in the air and bring it under the water surface for reaction, which solves the problem of gas supply for the reaction. At the same time, it can also play a mixing role to make the adsorption more uniform.
[0044] By using the iron-free electro-Fenton technology, the modified duckweed biochar is introduced as the cathode 7, which can replace the iron element to catalyze hydrogen peroxide to produce hydroxyl radicals for the degradation of antibiotics in surface water, achieving pollution control with pollution, and avoiding the problem of secondary pollution caused by the introduction of iron elements. At the cathode 7, oxygen is reduced to hydrogen peroxide, and hydrogen peroxide is catalyzed by biochar to obtain strong oxidizing hydroxyl radicals to degrade antibiotics. The performance of the modified biochar is improved compared to that before modification. At the same time, duckweed is widely available, pollution control with pollution, the process cost is low, the raw materials are easy to obtain, and the processing is simple.
[0045] The biochar is regenerated during the reaction process, which can meet the requirements of continuous adsorption reaction, and the treatment device is easy to maintain.
[0046] The reactions occurring at cathode 7 include: O2+2H+2e - →H2O2, H2O2+C(biochar)→·OH+C;
[0047] Among them, the preparation method of cathode 7 of modified duckweed biochar is:
[0048] (1) Experimental materials: duckweed, phosphoric acid, H2O2, deionized water
[0049] (2) Method: Preparation of duckweed biochar:
[0050] 1. Wash, dry and crush the duckweed to obtain clean duckweed biomass powder.
[0051] 2. Weigh the same mass of biomass powder and phosphoric acid respectively, and dilute the phosphoric acid appropriately.
[0052] 3. Add phosphoric acid to the biomass powder and stir thoroughly to obtain a brown paste.
[0053] 4. Seal the beaker with aluminum foil and soak at room temperature for 12 hours.
[0054] 5. Dry the impregnation liquid in a vacuum drying oven at 100°C.
[0055] 6. The dried product was put into a mortar, crushed and ground to obtain soaked duckweed biomass.
[0056] 7. Place the treated biomass in a crucible and then in a tubular furnace, pass argon gas to eliminate oxygen, adjust the parameters to allow the tubular furnace to heat up to 450°C at a rate of 5°C per minute, keep warm for one hour, and then cool to room temperature at a rate of 10°C per minute.
[0057] 8. Take out the cooled crucible, take out the sample from the crucible with a spatula, put it into a mortar and crush it into small pieces, transfer it to a beaker, add deionized water to soak it, put it into a water bath at 80℃ and stir it. After a period of time, replace the deionized water and repeat the operation.
[0058] 9. Put the rinsed sample into a vacuum drying oven, take it out after drying and grind it to obtain duckweed biochar.
[0059] Modification of duckweed biochar:
[0060] 10. Take the duckweed biochar sample and mix it with 10% H2O2 at room temperature. After 4 hours, wash the biochar with deionized water.
[0061] 11. The washed biochar was placed in a drying oven and dried at 80°C to obtain modified duckweed biochar.
[0062] In some optional embodiments, one end of the metal rod 9 is connected to the battery pack 4 , and the other end is connected to the cathode 7 . This arrangement realizes the connection between the cathode 7 of the electrode unit 5 and the battery pack 4 .
[0063] In some optional embodiments, the electrode unit 5 further includes a metal plate 10, which is disposed on the side walls of the plurality of electrode units 5, one end of the metal plate 10 is connected to the battery pack 4, and the other end is connected to the anode 8. This arrangement realizes the connection between the anode 8 of the electrode unit 5 and the battery pack 4.
[0064] Specifically, the anode 8 is a mesh structure; and the anode 8 is made of stainless steel.
[0065] The anode 8 made of stainless steel can have a long service life and is not prone to rust even if it is soaked in water for a long time.
[0066] In addition, the processing device further comprises an air pump 11 , which is disposed on the outer wall of the support member 1 , and is connected to an air guide tube 12 , which is disposed corresponding to the electrode unit 5 .
[0067] The air pump 11 serves as an auxiliary air supply device and can be started in relatively calm waters. The pumped air enters from the front side of the electrode unit 5 through the air duct 12, and flows through the entire treatment device driven by the water flow to provide the required oxygen for the reaction cathode 7.
[0068] In some optional embodiments, the processing device further includes a structural ring 13 , which is disposed in the support member 1 and located at both ends of the metal plate 10 .
[0069] The structure rings 13 have two of them, which are respectively arranged at the two ends of the metal plate 10; the first one is used to fix the anode 8, and the second one is used to fix the anode 8 to the metal plate 10 for energization.
[0070] In some optional embodiments, the treatment device further includes a fairing 14, which is disposed on the support member 1 and is provided with one end of the propeller 6. The function of the fairing 14 is to adjust the direction of the water flow, so that more water flows into the treatment device, and increase the force of pushing the propeller 6.
[0071] In some optional embodiments, the processing device further includes a controller 15 , and the controller 15 is connected to the battery pack 4 and the air pump 11 .
[0072] The solar panel 3 is used as the main power source for this reaction. The energy is monitored and adjusted in real time by the controller 15 and input into the battery with appropriate current and voltage. The energy stored in the battery can power the electrode unit 5 without artificial external energy input. At the same time, the controller 15 is connected to the air pump 11 and can control the air pump 11 to perform corresponding actions.
[0073] The utility model also provides a surface water antibiotic treatment system based on non-ferroelectric Fenton reaction coupled with solar power generation, including the surface water antibiotic treatment device based on non-ferroelectric Fenton reaction coupled with solar power generation. The treatment device can have multiple devices, and the device can be fixed in a certain area in the water area by anchor, and then the array of the device is distributed according to the pollution range, so as to achieve large-scale water purification in a large area.
[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation, characterized in that: include: A support (1) and a barrel-shaped float (2), a solar panel (3), a battery group (4), an electrode unit (5), and a propeller (6); barrel-shaped floats (2) are arranged on both sides of the support (1); a solar panel (3) is arranged on the top of the barrel-shaped float (2); the solar panel (3) is connected to the battery group (4); the battery group (4) is connected to the electrode unit (5); there are a plurality of electrode units (5); the plurality of electrode units (5) are arranged in intervals in the support (1); the electrode unit (5) comprises an anode (8) and a cathode (7), and a metal rod (9); duckweed biochar is arranged on the cathode (7); the metal rod (9) penetrates the plurality of electrode units (5); and the propeller (6) is arranged in the support (1) and is located at one end of the metal rod (9).
2. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 1 is characterized in that: One end of the metal rod (9) is connected to the battery pack (4), and the other end is connected to the cathode (7).
3. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 2 is characterized in that: The electrode unit (5) further comprises a metal plate (10) which is arranged on the side walls of the plurality of electrode units (5), one end of the metal plate (10) being connected to the battery pack (4) and the other end being connected to the anode (8).
4. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 3 is characterized in that: The anode (8) is a mesh structure.
5. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 4 is characterized in that: The anode (8) is made of stainless steel.
6. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to any one of claims 1-3, characterized in that: It also includes an air pump (11), which is arranged on the outer wall of the support member (1), and the air pump (11) is connected to an air guide tube (12), and the air guide tube (12) is arranged corresponding to the electrode unit (5).
7. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 4 is characterized in that: It also comprises a structural ring (13), which is arranged in the support member (1) and located at both ends of the metal plate (10).
8. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 7 is characterized in that: It also comprises a fairing (14), which is arranged on the support (1) and is provided with one end of the propeller (6).
9. The surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation according to claim 3, characterized in that: It also includes a controller (15), which is connected to the battery pack (4) and the air pump (11).
10. A surface water antibiotic treatment system based on ferroelectric Fenton reaction coupled with solar power generation, characterized in that: A surface water antibiotic treatment device based on ferroelectric Fenton reaction coupled with solar power generation, comprising any one of claims 1-9.