Multi-tank integrated potting device capable of generating electricity and method for generating electricity

Abstract

The application provides a multi-tank integrated potting device capable of generating electricity, which comprises a main tank body, a plurality of proton exchange membrane tanks, a plurality of cathodes, a plurality of cathode wires, a plurality of anode tanks, a plurality of anodes, a plurality of anode wires and a filtering mechanism. Each of the proton exchange membrane tanks and each of the anode tanks is arranged in the main tank body. The proton exchange membrane tank uses the inner wall of the main tank body as a part of the tank wall, and uses a proton exchange membrane to enclose the part of the tank wall to form the proton exchange membrane tank; one proton exchange membrane tank is connected to one anode tank through the proton exchange membrane. The filtering mechanism covers all the anode tanks, and the filtering mechanism is provided with leakage holes through which water is supplied. Plants are planted on the filtering mechanism, and the percolate leached from the plant growth soil is dropped into the anode tank through the leakage holes, microorganisms decompose organic matters to generate protons and electrons, and the battery assembly is in long-term contact with the anode liquid, so that the battery can accumulate electric charges and generate electric energy.

Description

TECHNICAL FIELD

[0001] The application relates to a self-generating potting device, in particular to a multi-tank integrated potting device capable of generating electricity and an electricity generation method. BACKGROUND

[0002] A microbial fuel cell is an energy converter capable of directly converting organic matter into electrical energy, and can be applied to sewage treatment to realize the dual functions of wastewater treatment and electrical energy regeneration. In recent years, with the continuous deepening of research in the field of microbial fuel cells, air cathode microbial fuel cells have become the mainstream of research. Because the atmosphere can supply oxygen continuously, it has high redox characteristics and is suitable for being the most common electron acceptor for cathodes. The existing potting device produces a lot of wastewater, which contains not only organic waste but also microorganisms capable of decomposing the organic waste. The wastewater is generally directly discharged, which not only causes environmental pollution but also wastes organic energy. SUMMARY

[0003] To solve the above problems, the application provides a multi-tank integrated potting device capable of generating electricity, which integrates a microbial fuel cell and a green potting device. The upper layer can be planted with green plants, and the percolate of the green plant growth soil can be used to operate the system to generate electrical energy, so as to achieve the dual goals of reducing waste liquid discharge and generating new energy.

[0004] The application adopts the following scheme:

[0005] A multi-tank integrated potting device capable of generating electricity, which comprises:

[0006] a main tank body, a plurality of proton exchange membrane tanks, a plurality of cathodes, a plurality of cathode wires, a plurality of anode tanks, a plurality of anodes, a plurality of anode wires and a filtering mechanism; each proton exchange membrane tank and each anode tank are arranged in the main tank body; the proton exchange membrane tank uses the inner wall of the main tank body as a part of the tank wall, and uses a proton exchange membrane to enclose the part of the tank wall to form the proton exchange membrane tank; one proton exchange membrane tank is connected to one anode tank through the proton exchange membrane.

[0007] One cathode is arranged in each proton exchange membrane tank, and one cathode wire is connected to each cathode; one anode is arranged in each anode tank, and one anode wire is connected to each anode; the cathode wire is connected to the anode wire; the filtering mechanism covers all the anode tanks, and the filtering mechanism is provided with leakage holes through which water is supplied.

[0008] As a further improvement, the multi-tank integrated potting device comprises four proton membrane tanks and four anode tanks; the four proton membrane tanks are installed on the four corners of the multi-tank integrated potting device. The multi-tank integrated potting device further comprises a cross partition; the cross partition is installed in the main tank body and separates the main tank body into four independent tank body units; each tank body unit serves as the anode tank and borders one proton membrane tank.

[0009] As a further improvement, the filter mechanism is a layered partition; the layered partition has a cross-shaped protrusion in the middle, which divides the layered partition into four areas corresponding to the four tank body units.

[0010] As a further improvement, the four areas of the layered partition are concave and each area has a plurality of holes in the middle; the anode lead wire passes through one of the holes.

[0011] As a further improvement, the lower part of the proton membrane tank is provided with a plurality of holes communicating with the anode tank.

[0012] As a further improvement, the inside of the proton membrane tank is filled with a water-absorbing material, and the cathode is inserted into the water-absorbing material.

[0013] As a further improvement, the water-absorbing material is a water-absorbing gel, and the cathode is a carbon rod.

[0014] As a further improvement, the material of the anode is a steel wire ball installed at the bottom of the anode tank; the materials of the anode lead wire and the cathode lead wire are titanium wires.

[0015] As a further improvement, the proton membrane tank, the cathode, the cathode lead wire, the anode tank, the anode, and the anode lead wire form a battery assembly, and a plurality of battery assemblies are connected in series, parallel, or series-parallel to provide a larger voltage or current.

[0016] A method for generating electricity using the above-mentioned multi-tank integrated potting device capable of generating electricity, organic wastewater is introduced into the filter mechanism, the organic wastewater passes through the holes and enters the anode tank, the organic matter in the organic wastewater is decomposed by the microorganisms in the organic wastewater, protons and electrons are generated, the electrons pass through the anode, the anode lead wire, the cathode lead wire in turn, and reach the cathode, the oxygen in the air around the cathode is reduced to oxygen negative ions, the protons pass through the proton exchange membrane and are conducted to the cathode, the protons and the oxygen negative ions combine to form water in the cathode, and an electric current is generated.

[0017] By adopting the above technical solutions, the application can achieve the following technical effects:

[0018] The application combines the multi-tank potting system and the battery assembly, uses the percolate of the plant growth soil or other organic wastewater to connect the anode and cathode of the battery assembly, makes the microorganism in the water adhere to the battery assembly, the microorganism of the microbial battery assembly can decompose the organic matter in the water, the long-term contact of the water to the battery assembly can make the battery accumulate electric charge, generate electric energy, the connection mode of the series connection, parallel connection or series-parallel connection battery assembly can be adopted to amplify the voltage, current or power, thereby providing the power supply required by the electric component, forming the treatment system which generates electric energy while planting by using the soil percolate or other organic wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 is the internal structure schematic diagram of the electric-generating multi-tank integrated potting device of the application;

[0021] Figure 2 is the internal upper structure schematic diagram of the electric-generating multi-tank integrated potting device of the application;

[0022] Figure 3 is the sectional structure schematic diagram of the proton membrane tank of the electric-generating multi-tank integrated potting device of the application;

[0023] Figure 4 is the partial sectional structure schematic diagram of the proton membrane tank and the anode tank of the multi-tank integrated potting device of the application;

[0024] Figure 5 is the structure schematic diagram of the cross-shaped partition plate of the application;

[0025] Figure 6 is the structure schematic diagram of the layered partition plate of the application.

[0026] Figure legend: 1-main tank body; 2-tank body unit; 3-cross-shaped partition plate; 4-proton membrane tank; 5-layered partition plate; 21-anode; 22-anode lead wire; 31-supporting block; 41-hole; 42-water-absorbing material; 43-cathode; 44-cathode lead wire; 51-leakage hole. DETAILED DESCRIPTION

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0032] Embodiment

[0033] In combination Figures 1 to 4 , the embodiment provides a multi-tank integrated potting device capable of generating electricity, comprising: a main tank body 1, a tank unit 2, a cross partition 3, a proton membrane tank 4, a layered partition 5, a cathode 43 and an anode 21, etc.

[0034] As Figure 1 , the cross partition 3 separates the main tank body 1 into four independent tank units 2. Four proton membrane tanks 4 are also arranged in the main tank body 1, and each proton membrane tank 4 is adjacent to one of the tank units 2. The proton membrane tank 4 uses the inner wall of the main tank body 1 as part of its tank wall, and uses a proton exchange membrane to enclose the part of the tank wall to form the proton membrane tank 4. Optionally, the main tank body 1 is a cube, and the four proton membrane tanks 4 are vertically arranged at the four corners of the main tank body 1, respectively.

[0035] The proton membrane tank 4 serves as a cathode tank with a diaphragm, and the tank unit 2 serves as an anode tank. The proton exchange membrane is arranged between the cathode tank and the anode tank as a diaphragm. In the anode tank, microorganisms decompose organic matter in the plant growth soil leachate or other organic wastewater, thereby generating electric energy, which can provide power for electrical components in an external circuit.

[0036] Referring to Figure 3 , the proton membrane tank 4 is provided with a closable opening at the top, and the proton membrane tank 4 is provided with water-absorbing material 42 and cathode 43 inside, and cathode lead 44 is connected to the cathode 43 and passes out of the opening upward. The water-absorbing material 42 is injected into the proton membrane tank 4, the cathode 43 is inserted into the water-absorbing material 42, and the lower half of the proton membrane tank 4 is provided with a plurality of holes 41. The water-absorbing material 42 is preferably water-absorbing gel. The cathode 43 can be a carbon rod or other conductive material.

[0037] Referring to Figure 4The bottom of the groove unit 2 is provided with an anode 21, which can be a steel ball or other conductive material. The cathode 43 is connected with a cathode wire 44. The anode 21 is connected with an anode wire 22. The cathode wire 44 and the anode wire 22 are connected and an electrical component is connected therebetween. The cathode wire 44 and the anode wire 22 can be corrosion-resistant titanium wire.

[0038] Optionally, the ratio of the height of the proton membrane groove 4 to the thickness of the proton exchange membrane is between 1:1 and 27:1, and the preferred ratio is 18:1. It should be noted that the greater the height of the water-absorbing material 42 filled, the greater the separation between the cathode 43 and the anode 21, thereby avoiding short circuit.

[0039] It should be noted that the outer edges of the cathode wire 44 and the anode wire 22 need to be covered with an insulating heat-shrinkable film to avoid direct contact of the wires and short circuit of the electrical component.

[0040] Referring to Figure 1 The cross partition 3 is built in the main groove 1 to form four groove units 2, and each groove unit 2 is provided with an anode 21. Figure 5 The upper surface of the cross partition 3 is provided with a support block 31 above the middle junction and four end points, which is used to support the layered partition 5. The layered partition 5 has a cross-shaped protrusion in the middle, and the peripheral edge of the layered partition 5 is also protruded, dividing the layered partition 5 into four areas corresponding to the four groove units 2. The height of the support block 31 accounts for 1:10-5:10 of the height of the cross partition. The total height of the cross partition 3 accounts for (0.4-0.7):1 of the height of the main groove 1.

[0041] As shown in Figure 6 The four areas of the layered partition 5 are concave, and each area is provided with a plurality of holes 51. Soil and plants are loaded on the layered partition 5. The anode wire 22 passes through one of the holes 51 and penetrates the soil. The other holes 51 have the function of allowing the leachate to drip into the groove unit 2 through the holes 51 during the growth of the upper layer of plants, and adhering to the anode 21 (such as a steel ball). The organic matter in the leachate is decomposed by the microorganisms in the leachate. Some microorganisms such as Shewanella, Geobacillus or Klebsiella can be actively added to the leachate to decompose the organic matter faster, generate protons and electrons, and conduct the electrons to the cathode 43 through the anode 21-anode wire 22-cathode wire 44. The oxygen in the air around the cathode 43 is reduced to oxygen negative ions, and the protons are conducted to the cathode 43 by the water-absorbing material 42 through the hole 41. The protons and the oxygen negative ions combine to form water, and this process generates an electric current to power the electrical component connected between the anode wire 22 and the cathode wire 44.

[0042] In an alternative embodiment, a layer of filter material, such as polypropylene fiber non-woven fabric, can be added between the cross partition 3 and the layered partition 5 to further increase the filtering effect.

[0043] The voltage generated between the single tank unit 2 and the proton membrane tank 4 is between 0.2V and 1.2V. The voltage and current can be amplified by connecting multiple tank units 2 in series, parallel or series-parallel to match the voltage requirement of the electrical component. It should be noted that the height of the liquid surface of the tank unit 2 should be controlled (overflow hole is set) to be less than the height of the cross partition 3, and the relative height of the cross partition 3 should be greater than 2mm to prevent multiple tank units 2 from sharing an anode liquid surface and affecting the normal operation of the battery.

[0044] It can be understood that within the limited main tank 1, multiple divisions can be made to divide multiple tank units 2, such as five, six, seven or more, and the same number of proton membrane tanks 4 are set inside the main tank 1, as well as the corresponding anode 21, cathode 43, etc. The battery is connected by series, parallel or series-parallel connection, and the overall output voltage and current of the system is amplified, and small low-power electrical appliances are connected between the positive and negative electrodes to enable normal start-up. The multi-tank integrated device has the advantages of increasing the number of batteries in a limited space to further amplify the overall output voltage of the system, and obtaining greater output voltage in the case of high COD concentration.

[0045] The output voltage of the device varies with the type of plant growth soil, the type of organic wastewater and the circuit connection mode of the microbial fuel cell assembly. According to the voltage, current and power range required by the connected electrical component, series, parallel or series-parallel connection can be adopted to amplify the voltage, current or power.

[0046] The above is only a preferred embodiment of the present application, and the implementation scheme of the present application is not limited to the above-mentioned embodiments. Any technical solution that belongs to the idea of the present application falls within the scope of protection claimed by the present application.

Claims

1. A multi-tank integrated potting device capable of generating electricity, characterized by, The device comprises: a main tank body, a plurality of proton exchange membrane tanks, a plurality of cathodes, a plurality of cathode wires, a plurality of anode tanks, a plurality of anodes, a plurality of anode wires, and a filtering mechanism; each of the proton exchange membrane tanks and each of the anode tanks are arranged in the main tank body; the proton exchange membrane tank uses the inner wall of the main tank body as a part of the tank wall, and uses a proton exchange membrane to enclose the part of the tank wall to form the proton exchange membrane tank; one proton exchange membrane tank is connected to one anode tank through the proton exchange membrane; one cathode is installed in each of the proton exchange membrane tanks, and each cathode is connected to one cathode wire; one anode is installed in each anode tank, and one anode is connected to one anode wire; the cathode wire is connected to the anode wire; the filtering mechanism covers all the anode tanks, and the filtering mechanism is provided with leakage holes through which water is supplied; the multi-tank integrated potting device further comprises a cross partition; the cross partition is installed in the main tank body to divide the main tank body into four independent tank body units; each tank body unit serves as the anode tank and is connected to one proton exchange membrane tank; the filtering mechanism is a layered partition; the layered partition has a cross-shaped protrusion in the middle to divide the layered partition into four areas, which correspond to the four tank body units; the four areas of the layered partition are concave, and each area has a plurality of leakage holes in the middle; the anode wire passes through one of the leakage holes; the proton exchange membrane tank is filled with a water-absorbing material, and the cathode is inserted into the water-absorbing material; the proton exchange membrane tank, the cathode, the cathode wire, the anode tank, the anode, and the anode wire form a battery assembly, and a plurality of battery assemblies are connected in series, in parallel, or in series and parallel.

2. The multi-slotted self-contained potting device of claim 1, wherein, The multi-tank integrated potting device comprises four proton exchange membrane tanks and four anode tanks; the four proton exchange membrane tanks are installed at the four corners of the multi-tank integrated potting device.

3. The multi-slotted self-contained potting device of claim 1, wherein, The lower part of the proton exchange membrane tank is provided with a plurality of holes that communicate with the anode tank.

4. The multi-slotted self-contained potting device of claim 3, wherein, The water-absorbing material is a water-absorbing gel, and the cathode is a carbon rod.

5. The multi-slotted self-contained potting device of claim 1, wherein, The material of the anode is a steel wire ball, which is installed at the bottom of the anode tank; the materials of the anode wire and the cathode wire are titanium wires.

6. A method for generating electricity using the multi-tank integrated potting device capable of generating electricity according to any one of claims 1 to 5, characterized by, Organic wastewater is introduced into the filtering mechanism, passes through the leakage holes, and enters the anode tank; the organic matter in the organic wastewater is decomposed by microorganisms in the organic wastewater to generate protons and electrons; the electrons pass through the anode, the anode wire, and the cathode wire in sequence to reach the cathode; the oxygen in the air around the cathode is reduced to oxygen negative ions; the protons pass through the proton exchange membrane and are conducted to the cathode; the protons and the oxygen negative ions combine to form water in the cathode, generating an electric current.

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