Wastewater treatment device and wastewater treatment plant

Abstract

The application relates to a wastewater treatment device and a wastewater treatment equipment, which comprise a plurality of wastewater treatment components arranged in an anaerobic reaction tank according to a preset arrangement mode, wherein the wastewater treatment component comprises an inner electrode layer in a ring column structure, an isolation medium layer and an outer electrode layer which are sequentially arranged outside the periphery of the inner electrode layer; the outer electrode layer is used for stimulating anaerobic microorganisms in the anaerobic reaction tank to degrade and treat the to-be-degraded substances in the wastewater in the anaerobic reaction tank under the condition of being connected with the positive pole of a power supply, so as to release the electrons and protons in the to-be-degraded substances; the inner electrode layer is surrounded by a cavity, and the inner electrode layer is used for being connected with the negative pole of the power supply, so that the electrons, the protons and the dissolved oxygen of the wastewater entering the cavity can carry out a reduction reaction in the cavity. The wastewater treatment device and the wastewater treatment equipment provided by the application have higher wastewater treatment efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to industrial wastewater treatment technology, in particular to a wastewater treatment device and a wastewater treatment equipment. BACKGROUND

[0002] With the development of industrial wastewater treatment technology, micro-electric field enhanced biological pretreatment technology emerges as the times require.

[0003] The wastewater treatment device based on the traditional micro-electric field enhanced biological pretreatment technology usually has a pair of electrodes placed opposite to each other, and degrades the refractory organic matter in wastewater by stimulating the anaerobic microorganisms attached to the anode by electric current. At the same time of stimulating the anaerobic microorganisms, the cathode is aerated to increase the dissolved oxygen in the wastewater, so that the dissolved oxygen and the electrons and protons generated by the anaerobic microorganisms in the degradation of wastewater perform redox reaction, thereby reducing the concentration of organic matter in the wastewater.

[0004] However, the above wastewater treatment device has the problem of low wastewater treatment efficiency. SUMMARY

[0005] Therefore, it is necessary to provide a wastewater treatment device and a wastewater treatment equipment with high wastewater treatment efficiency in view of the problem of low wastewater treatment efficiency of the traditional wastewater treatment device.

[0006] In a first aspect, a wastewater treatment device is provided, comprising a plurality of wastewater treatment assemblies, the plurality of wastewater treatment assemblies are arranged in an anaerobic reaction tank according to a preset arrangement mode, and each wastewater treatment assembly comprises an inner electrode layer in a ring column structure and an isolation medium layer and an outer electrode layer successively arranged outside a periphery of the inner electrode layer.

[0007] The outer electrode layer is configured to stimulate anaerobic microorganisms in the anaerobic reaction tank to degrade and treat the to-be-degraded matter in the wastewater in the anaerobic reaction tank and release electrons and protons in the to-be-degraded matter when the outer electrode layer is connected to a positive pole of a power supply.

[0008] The inner electrode layer surrounds to form a cavity, and the inner electrode layer is configured to be connected to a negative pole of the power supply, so that the electrons, the protons and the dissolved oxygen of the wastewater entering the cavity perform reduction reaction in the cavity.

[0009] In one embodiment, the wastewater treatment device further comprises a plurality of assembly socket mechanisms.

[0010] The plurality of wastewater treatment assemblies are arranged in the anaerobic reaction tank according to the preset arrangement mode through the plurality of assembly socket mechanisms.

[0011] In one embodiment, the preset arrangement mode is a single-layer array arrangement mode, wherein:

[0012] The assembly socket mechanisms are sequentially connected along a first direction, and the first direction does not overlap with the height direction of the wastewater treatment assemblies; the assembly socket mechanisms are provided with annular socket slots, and the wastewater treatment assemblies are fixed to the assembly socket mechanisms through the annular socket slots on the assembly socket mechanisms.

[0013] In one of the embodiments, each assembly socket mechanism comprises a top assembly socket mechanism and a bottom assembly socket mechanism.

[0014] The top of the wastewater treatment assembly is fixed to the top assembly socket mechanism through the fixing annular socket slot of the top assembly socket mechanism, and the bottom of the wastewater treatment assembly is fixed to the bottom assembly socket mechanism through the fixing annular socket slot of the bottom assembly socket mechanism.

[0015] In one of the embodiments, the preset arrangement mode is a multi-layer array arrangement mode, and the plurality of wastewater treatment assemblies in each layer are arranged according to a single-layer array arrangement mode.

[0016] In one of the embodiments, the assembly socket mechanism is provided with an opening, and the wastewater treatment device further comprises an aeration head, which is used to be exposed in the cavity after passing through the opening and is used to inject oxygen into the cavity to increase the dissolved oxygen of the wastewater.

[0017] In one of the embodiments, the isolation medium layer comprises an inner isolation medium layer and an outer isolation medium layer, the inner isolation medium layer is attached to the outer surface of the inner electrode layer, the outer isolation medium layer is attached to the inner surface of the outer electrode layer, and a hollow layer is arranged between the inner isolation medium layer and the outer isolation medium layer.

[0018] In one of the embodiments, holes are arranged on the inner isolation medium layer and the outer isolation medium layer, and protons pass through the holes on the outer isolation medium layer and the holes on the inner isolation medium layer in sequence to reach the cavity.

[0019] In one of the embodiments, the inner electrode layer comprises inner electrode wires, the inner electrode wires are used to connect the inner electrode layer and the negative pole of the power supply, and the inner electrode wires are uniformly wound on the outer wall of the inner electrode layer.

[0020] In one of the embodiments, the outer electrode layer comprises outer electrode wires, the outer electrode wires are used to connect the outer electrode layer and the positive pole of the power supply, and the outer electrode wires are uniformly wound on the outer wall of the outer electrode layer.

[0021] In one of the embodiments, the inner electrode wires and the outer electrode wires are in a filamentous structure or a reticular structure.

[0022] In one of the embodiments, the inner electrode layer and the outer electrode layer are made of carbon felt or carbon brush.

[0023] In a second aspect, a wastewater treatment device is provided, including an aeration component, an inlet component, and a wastewater treatment apparatus as described in any embodiment of the first aspect, wherein the aeration component is used to increase dissolved oxygen in the wastewater within a cavity formed by surrounding an inner electrode layer included in the wastewater treatment apparatus, and the inlet component is used to inject wastewater into an anaerobic reaction tank.

[0024] The wastewater treatment device and equipment provided in this application embodiment include multiple wastewater treatment components. These components are arranged in a preset manner in an anaerobic reactor. Each wastewater treatment component includes an inner electrode layer with an annular columnar structure, an isolation medium layer, and an outer electrode layer that are sequentially arranged around the outer periphery of the inner electrode layer. The outer electrode layer is used to stimulate anaerobic microorganisms in the anaerobic reactor to degrade the substances to be degraded in the wastewater when connected to the positive electrode of the power supply, thereby releasing electrons and protons from the substances to be degraded. The inner electrode layer has a cavity formed around it and is used to connect to the negative electrode of the power supply so that electrons, protons, and dissolved oxygen from the wastewater entering the cavity can undergo a reduction reaction within the cavity. In this way, arranging multiple wastewater treatment components in the anaerobic reactor according to a preset pattern allows for more efficient use of the space within the reactor, enabling the addition of more wastewater treatment components and improving wastewater treatment efficiency. Furthermore, the isolation medium layer separates the external electrode layer used to stimulate anaerobic microorganisms from the internal electrode layer where the reduction reaction occurs, preventing the reduction in anaerobic microorganism activity caused by dissolved oxygen in the wastewater, thus avoiding the problem of low wastewater treatment efficiency. The wastewater treatment device and equipment provided in this application embodiment can improve wastewater treatment efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a wastewater treatment device in one embodiment;

[0026] Figure 2 This is a schematic diagram of a wastewater treatment component in another embodiment;

[0027] Figure 3 This is a cross-sectional view of a wastewater treatment component in another embodiment;

[0028] Figure 4 This is a cross-sectional view of a wastewater treatment component in another embodiment;

[0029] Figure 5 This is a schematic diagram of the component insertion mechanism in another embodiment;

[0030] Figure 6 This is a schematic diagram of a wastewater treatment device arranged in a single-layer array configuration according to another embodiment.

[0031] Figure 7 A cross-sectional view of the component insertion mechanism in another embodiment;

[0032] Figure 8 A cross-sectional view of the assembly socket mechanism in another embodiment;

[0033] Figure 9 A cross-sectional view of the vertically combined assembly socket mechanism in another embodiment;

[0034] Figure 10 A schematic view of the wastewater treatment device arranged in a multi-layer array arrangement in another embodiment;

[0035] Figure 11 A cross-sectional view of the assembly socket mechanism with an aeration head in another embodiment;

[0036] Figure 12 A schematic view of the wastewater treatment device in one embodiment.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 100: wastewater treatment assembly; 110: inner electrode layer; 120: isolation medium layer; 130: outer electrode layer; 111: inner electrode lead; 131: outer electrode lead; 121: inner isolation medium layer; 122: hollow layer; 123: outer isolation medium layer; 200: assembly socket mechanism; 201: annular socket; 210: bottom assembly socket mechanism; 220: top assembly socket mechanism; 211: fixed annular socket of the bottom assembly socket mechanism; 221: fixed annular socket of the top assembly socket mechanism; 300: aeration head; 400: aeration assembly; 500: water inlet assembly. DETAILED DESCRIPTION

[0039] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order not to unnecessarily obscure the present application.

[0040] 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", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing 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 a limitation of the present application.

[0041] 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 technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0042] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0044] It is to be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like are merely used for the purpose of illustration and do not indicate an absolute orientation.

[0045] Industrial wastewater is generally characterized by complex composition, high concentration of organic pollutants, poor biodegradability and other characteristics, which has become an environmental problem that needs to be solved urgently in the world. The wastewater treatment method based on biological treatment technology is widely used in the field of industrial wastewater treatment due to its low cost, technological achievements and suitability for large-scale application.

[0046] The wastewater treatment method based on biological treatment technology usually adds microorganisms to wastewater, uses the metabolic capacity of microorganisms to degrade organic pollutants in wastewater into inorganic substances and water, thereby achieving the purpose of purifying wastewater. However, with the development of industry, a large number of new organic pollutants are constantly emerging. These organic pollutants have a strong toxic inhibition effect on microorganisms, reducing the activity of microorganisms, often leading to abnormalities or even destruction of the biological treatment system, and reducing the efficiency of wastewater treatment. Therefore, the traditional wastewater treatment method based on biological treatment technology is difficult to meet the increasingly stringent environmental protection regulations and wastewater discharge standards. Therefore, the micro-electric field enhanced biological pretreatment technology emerges as the times require.

[0047] The micro-electric field enhanced biological pretreatment technology is a new technology that combines electrochemistry and biochemistry. The existing wastewater treatment device based on micro-electric field enhanced biological pretreatment technology usually places a pair of electrodes opposite to each other. The anode attached with anaerobic microorganisms is stimulated by electric current, thereby improving the activity of anaerobic microorganisms and enzymes to improve the efficiency of anaerobic microorganisms in degrading organic pollutants. At the same time of stimulating anaerobic microorganisms, the electrodes are aerated to increase the dissolved oxygen in wastewater, so that the dissolved oxygen and the electrons and protons generated by anaerobic microorganisms in degrading wastewater undergo redox reaction, thereby reducing the concentration of organic matter in wastewater.

[0048] However, if only a pair of electrodes is used for wastewater treatment, when the anaerobic reaction tank space for treating wastewater is too large and there is too much wastewater, it is inevitable to reduce the efficiency of wastewater treatment. Moreover, the anode for stimulating anaerobic microorganisms and the cathode for reduction reaction are placed opposite to each other, and the distance between them is too close. When the cathode is aerated, the concentration of dissolved oxygen near the electrodes is too high, which will affect the activity of anaerobic microorganisms, thereby reducing the efficiency of wastewater treatment.

[0049] In view of this, the wastewater treatment device and the wastewater treatment equipment provided in the embodiments of the present application comprise a plurality of wastewater treatment assemblies, the plurality of wastewater treatment assemblies are arranged in an anaerobic reaction tank according to a preset arrangement mode, the wastewater treatment assembly comprises an inner electrode layer in a ring-shaped columnar structure and an isolation medium layer and an outer electrode layer which are sequentially arranged outside the periphery of the inner electrode layer, wherein, in the case of being connected with a positive electrode of a power supply, the outer electrode layer is used to stimulate anaerobic microorganisms in the anaerobic reaction tank to degrade and treat the to-be-degraded substances in the wastewater in the anaerobic reaction tank, and release electrons and protons in the to-be-degraded substances, the inner electrode layer surrounds a cavity, and the inner electrode layer is used to be connected with a negative electrode of the power supply, so that the electrons, the protons and the dissolved oxygen of the wastewater entering the cavity perform a reduction reaction in the cavity. In this way, according to the preset arrangement mode, the plurality of wastewater treatment assemblies are arranged in the anaerobic reaction tank, the space in the anaerobic reaction tank can be more effectively utilized to increase more wastewater treatment assemblies, so as to improve the wastewater treatment efficiency, and the outer electrode layer for stimulating the anaerobic microorganisms is separated from the inner electrode layer for performing the reduction reaction through the isolation medium layer, so as to avoid the problem that the activity of the anaerobic microorganisms is reduced due to the influence of the dissolved oxygen of the wastewater, and thus the wastewater treatment efficiency is low. The wastewater treatment device and the wastewater treatment equipment provided in the embodiments of the present application can improve the wastewater treatment efficiency.

[0050] Reference is made to Figure 1 , Figure 1 A schematic diagram of a wastewater treatment device in an embodiment of the present application is shown. As Figure 1 shown, the wastewater treatment device comprises a plurality of wastewater treatment assemblies 100.

[0051] When the wastewater treatment device in the embodiments of the present application is used for wastewater treatment, the wastewater treatment device is installed and placed in an anaerobic reaction tank, that is, a reaction tank into which wastewater is injected. The wastewater in the reaction tank is wastewater containing anaerobic microorganisms, or a layer of sludge containing anaerobic microorganisms is laid at the bottom of the anaerobic reaction tank. When wastewater is injected into the anaerobic reaction tank, the anaerobic microorganisms in the sludge will enter the wastewater.

[0052] The space of the anaerobic reaction tank is not specifically limited. Therefore, in order to effectively utilize the space of the anaerobic reaction tank, more wastewater treatment assemblies 100 are arranged in the limited space, and the plurality of wastewater treatment assemblies 100 are arranged in the anaerobic reaction tank according to a preset arrangement mode, Figure 1 which is only an exemplary preset arrangement mode. The specific preset arrangement mode can be designed according to the space of the anaerobic reaction tank in actual use, and is not specifically limited here.

[0053] The preset arrangement mode will be introduced below. The specific structure of the wastewater treatment assembly 100 is introduced first.

[0054] The specific structure of the wastewater treatment assembly 100 is referred to Figure 2As shown in Figure 2 , the wastewater treatment assembly 100 comprises an inner electrode layer 110 in a ring-shaped columnar structure, and a separation medium layer 120 and an outer electrode layer 130 successively arranged outside the outer periphery of the inner electrode layer 110.

[0055] In the embodiments of the present application, the wastewater treatment assembly 100 is a multi-layer ring-shaped columnar structure, which can be a cylindrical shape as shown in Figure 2 , or a hollow polygonal prism shape, and the specific shape of the wastewater treatment assembly 100 is not limited here.

[0056] Figure 3 is a cross-sectional view of the wastewater treatment assembly 100, referring to Figure 3 , the outer electrode layer 130 is used to stimulate the anaerobic microorganisms in the anaerobic reaction tank to degrade the degradable substances in the wastewater in the anaerobic reaction tank when connected to the positive pole of the power supply, and release the electrons and protons in the degradable substances, and the inner electrode layer 110 is arranged around a cavity, and is used to connect to the negative pole of the power supply, so that the electrons, protons and dissolved oxygen of the wastewater entering the cavity perform reduction reaction in the cavity.

[0057] In the embodiments of the present application, the power supply connected to the outer electrode layer 130 and the inner electrode layer 110 can be a direct current stabilized power supply, and one power supply can be connected to one wastewater treatment assembly 100 or multiple wastewater treatment assemblies 100, and the connection method of one wastewater treatment assembly 100 to the power supply is described with reference to Figure 3 , the outer electrode layer 130 is connected to the positive pole of the power supply through an outer electrode lead wire 131, and the inner electrode layer 110 is connected to the negative pole of the power supply through an inner electrode lead wire 111, and optionally, the outer electrode layer 130 and the inner electrode layer 110 are both provided with a lead wire access port, the outer electrode lead wire 131 is connected to the outer electrode layer 130 through the lead wire access port on the outer electrode layer 130, and the inner electrode lead wire 111 is connected to the inner electrode layer 110 through the lead wire access port on the inner electrode layer 110; optionally, in order to increase the contact area of the electrode lead wire and the electrode layer, thereby improving the wastewater treatment rate, the outer electrode layer 130 comprises the outer electrode lead wire 131, the outer electrode lead wire 131 is used to connect the outer electrode layer 130 to the positive pole of the power supply, and the outer electrode lead wire 131 is uniformly wound on the outer wall of the outer electrode layer 130, and the inner electrode layer 110 comprises the inner electrode lead wire 111, the inner electrode lead wire 111 is used to connect the inner electrode layer 110 to the negative pole of the power supply, and the inner electrode lead wire 111 is uniformly wound on the outer wall of the inner electrode layer 110.

[0058] In one embodiment, in order to increase the contact area of the electrode lead wire and the electrode layer as much as possible, the inner electrode lead wire 111 and the outer electrode lead wire 131 are both in a filamentous structure or a mesh structure, and the inner electrode layer 110 and the outer electrode layer 130 are both made of carbon felt or carbon brush.

[0059] In one embodiment, in order to avoid the high dissolved oxygen concentration of the inner electrode layer 110 affecting the activity of the anaerobic microorganisms on the outer electrode layer 130 when the reduction reaction is carried out, a separation medium layer 120 is arranged between the inner electrode layer 110 and the outer electrode layer, so as to separate the inner electrode layer 110 and the outer electrode layer 130, the separation medium layer 120 is made of non-conductive material, such as plastic or other non-metallic material, and the thickness of the separation medium layer 120 can be designed according to the actual application scene, such as 10 mm.

[0060] In one embodiment, referring to Figure 4 , the cross-sectional view of the wastewater treatment assembly 100, the separation medium layer 120 includes an inner separation medium layer 121 and an outer separation medium layer 123, the inner separation medium layer 121 is attached to the outer surface of the inner electrode layer 110, the outer separation medium layer 123 is attached to the inner surface of the outer electrode layer 130, and the hollow layer 122 is arranged between the inner separation medium layer 121 and the outer separation medium layer 123, the thickness of the inner separation medium layer 121, the outer separation medium layer 123 and the hollow layer 122 is determined according to the actual application scene, for example, the thickness of the inner separation medium layer 121, the outer separation medium layer 123 and the hollow layer 122 is 5 mm, so that the inner electrode layer 110 and the outer electrode layer 130 are separated by 15 mm.

[0061] When the wastewater treatment device is placed in the anaerobic reaction tank for wastewater treatment, in the case that the outer electrode layer 130 is connected to the positive electrode of the power supply through the outer electrode lead wire 131, as the working electrode, the anaerobic microorganisms attached to the outer surface of the outer electrode layer 130 are electrically stimulated, so as to improve the activity of the anaerobic microorganisms, so that the degradation efficiency of the anaerobic microorganisms to the degradation substance in the wastewater is improved, and the anaerobic microorganisms release electrons and protons in the degradation substance after degrading the degradation substance.

[0062] Since the inner electrode layer 110 is connected to the negative terminal of the power supply through the inner electrode wire 111, it can form a current path with the outer electrode layer 130. Electrons obtained at the outer electrode layer 130 will flow to the inner electrode layer 110 through the current path, while protons will enter the cavity formed around the inner electrode layer 110. At the inner electrode layer 110, they will undergo a reduction reaction with electrons and dissolved oxygen in the wastewater. Optionally, protons will enter the cavity through the water inlet provided at the bottom of the cavity. Optionally, both the inner isolation medium layer 121 and the outer isolation medium layer 123 are provided with holes. Protons will pass through the holes on the outer isolation medium layer 123 and the holes on the inner isolation medium layer 121 in sequence before reaching the cavity. In one embodiment, protons pass through the holes in the outer insulating dielectric layer 123 and enter the hollow layer 122 between the outer insulating dielectric layer 123 and the inner insulating dielectric layer 121. A large number of protons converge in the hollow layer 122 and then pass through the holes in the inner insulating dielectric layer 121 to reach the inner electrode layer 110, thereby reducing the proton mass transfer resistance inside the insulating dielectric layer and improving the proton transfer efficiency.

[0063] The aforementioned wastewater treatment device includes multiple wastewater treatment components arranged in a preset manner within an anaerobic reactor. Each wastewater treatment component includes an inner electrode layer with a ring-shaped columnar structure, an isolation medium layer, and an outer electrode layer sequentially surrounding the inner electrode layer. The outer electrode layer, when connected to the positive terminal of a power supply, stimulates anaerobic microorganisms in the anaerobic reactor to degrade substances in the wastewater, releasing electrons and protons from the substances. The inner electrode layer has a cavity formed around it and is connected to the negative terminal of a power supply, allowing electrons, protons, and dissolved oxygen from the wastewater entering the cavity to undergo a reduction reaction within the cavity. In this way, arranging multiple wastewater treatment components in the anaerobic reactor according to a preset pattern allows for more efficient use of the space within the reactor, enabling the addition of more wastewater treatment components and improving wastewater treatment efficiency. Furthermore, the isolation medium layer separates the external electrode layer used to stimulate anaerobic microorganisms from the internal electrode layer where the reduction reaction occurs, preventing the reduction in anaerobic microorganism activity caused by dissolved oxygen in the wastewater, thus avoiding the problem of low wastewater treatment efficiency. The wastewater treatment device and equipment provided in this application embodiment can improve wastewater treatment efficiency.

[0064] In one embodiment, based on Figures 1 to 4 See the embodiments. Figure 5 The wastewater treatment device also includes multiple component insertion mechanisms 200, and multiple wastewater treatment components 100 are arranged in a preset manner in the anaerobic reaction tank through multiple component insertion mechanisms 200.

[0065] Multiple component insertion mechanisms 200 can be combined and connected, so that multiple wastewater treatment components 100 are arranged in a preset manner in the anaerobic reactor through multiple component insertion mechanisms 200.

[0066] In an embodiment, the preset arrangement mode is a single-layer array arrangement mode, and the component socket mechanisms 200 are sequentially connected along a first direction, and the first direction is not overlapped with the height direction of the wastewater treatment components 100. Taking the first direction as an example, which is perpendicular to the plane of the wastewater treatment component, the six component socket mechanisms 200 are arrayed together in the preset single-layer array arrangement mode, as shown in Figure 6 .

[0067] In an embodiment, the component socket mechanism is provided with an annular socket groove 201, as shown in Figure 7 , and the wastewater treatment component 100 is fixed to the component socket mechanism 200 through the annular socket groove 201 on the component socket mechanism 200.

[0068] Based on the embodiments of Figure 6 and Figure 7 , as shown in Figure 8 , each component socket mechanism 200 includes a top component socket mechanism 220 and a bottom component socket mechanism 210.

[0069] The top of the wastewater treatment component 100 is fixed to the top component socket mechanism 220 through the fixed annular socket groove 221 of the top component socket mechanism, and the bottom of the wastewater treatment component 100 is fixed to the bottom component socket mechanism 210 through the fixed annular socket groove 211 of the bottom component socket mechanism.

[0070] In an embodiment, the preset arrangement mode is a multi-layer array arrangement mode, wherein a plurality of wastewater treatment components 100 in each layer are arranged according to the single-layer array arrangement mode.

[0071] In this embodiment, as shown in Figure 9 , two component socket mechanisms 200 can be vertically combined, so that a plurality of wastewater treatment components 100 can be connected by the component socket mechanisms 200 in multiple layers, thereby being arranged according to the multi-layer array arrangement mode as shown in Figure 10 .

[0072] In an embodiment, as shown in Figure 11 , in order to increase the dissolved oxygen concentration in the cavity surrounded by the inner electrode layer 110, the component socket mechanism 200 is provided with an opening, and the wastewater treatment device further includes an aeration head 300, which is used to be exposed in the cavity after passing through the opening and is used to inject oxygen into the cavity to increase the dissolved oxygen of the wastewater.

[0073] It can be understood that the component socket mechanism 200 is also provided with a water inlet to make the wastewater enter the cavity.

[0074] In an embodiment, based on the above Figures 1 to 11The wastewater treatment device shown provides a wastewater treatment device.

[0075] Referring to Figure 12 The wastewater treatment device includes an aeration assembly 400, a water inlet assembly 500, and a wastewater treatment assembly 100 as shown in Figures 1 to 11 The wastewater treatment device shown in any embodiment is placed in an anaerobic reaction tank.

[0076] The aeration assembly 400 is used to increase the dissolved oxygen of wastewater in the cavity formed around the inner electrode layer included in the wastewater treatment device. In one embodiment, an aeration port is provided on the upper part of the assembly socket mechanism 200, and the aeration assembly 400 is connected to the aeration port through a pipeline to input oxygen into the cavity of the wastewater treatment assembly 100 to increase the dissolved oxygen of wastewater. In another embodiment, an aeration head 300 is provided on the upper part of the assembly socket mechanism 200, and the aeration assembly 400 is connected to the aeration port through a pipeline to input oxygen into the cavity of the wastewater treatment assembly 100 to increase the dissolved oxygen of wastewater.

[0077] In one embodiment, the aeration assembly 400 includes an aeration pipeline, a gas pump, and a gas flow meter. The aeration pipeline is used to connect the gas pump, the gas flow meter, and the aeration port or the aeration head 300. The gas pump is used to pump oxygen into the cavity, and the gas flow meter is used to control the amount of oxygen pumped in. The amount of oxygen pumped in can be adjusted according to actual application, and can be adjusted according to the concentration of dissolved oxygen in wastewater.

[0078] The water inlet assembly 500 is used to inject wastewater into the anaerobic reaction tank. In one embodiment, the water inlet assembly 500 includes a solenoid valve and a solenoid flow meter, which can be used to control the flow rate of wastewater injected into the anaerobic reaction tank.

[0079] Based on Figure 12 The wastewater treatment device shown exemplarily provides an embodiment of the actual application of the wastewater treatment device:

[0080] In the case where the space of the anaerobic reaction tank is 1800mm long, 1200mm wide, and 2700mm high, 168 wastewater treatment assemblies are arranged in a double-layer array arrangement, each layer is arranged in a single-layer array arrangement of 7 rows and 12 columns, the shape of a single wastewater treatment assembly is designed as a ring-shaped cylinder with a diameter of 66mm and a height of 1000mm, each wastewater treatment assembly is inserted into the ring-shaped plug-in slot of the array-arranged assembly socket mechanism to be fixed, and the spacing between each wastewater treatment assembly is 66mm. In this way, the length of the entire wastewater treatment device is 1612mm, the width is 952mm, and the height is 2080mm (all increased by the length, width, and height of the assembly socket mechanism).

[0081] The wastewater treatment device is placed in an anaerobic reaction tank, the aeration assembly is connected with the wastewater treatment device, and the water inlet assembly is installed in the anaerobic reaction tank to control the flow of wastewater into the anaerobic reaction tank, so that the hydraulic retention time is 24 hours.

[0082] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present disclosure.

[0083] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A wastewater treatment device, characterized in that, It includes multiple component insertion mechanisms and multiple wastewater treatment components. The multiple wastewater treatment components are arranged in an anaerobic reactor according to a preset arrangement through the multiple component insertion mechanisms. Each wastewater treatment component includes an inner electrode layer with an annular columnar structure, and an isolation medium layer and an outer electrode layer that are sequentially arranged around the outer periphery of the inner electrode layer. The isolation medium layer includes an inner isolation medium layer and an outer isolation medium layer. The inner isolation medium layer is attached to the outer surface of the inner electrode layer, and the outer isolation medium layer is attached to the inner surface of the outer electrode layer. A hollow layer is provided between the inner isolation medium layer and the outer isolation medium layer. Both the inner isolation medium layer and the outer isolation medium layer are provided with holes. The outer electrode layer is used to stimulate anaerobic microorganisms in the anaerobic reaction tank to degrade the substances to be degraded in the wastewater of the anaerobic reaction tank when connected to the positive terminal of the power supply, thereby releasing electrons and protons from the substances to be degraded. The inner electrode layer is surrounded by a cavity. The protons pass through the holes in the outer isolation medium layer and the holes in the inner isolation medium layer in sequence to reach the cavity. The inner electrode layer is used to connect to the negative terminal of the power supply so that the electrons, the protons and the dissolved oxygen of the wastewater entering the cavity can undergo a reduction reaction in the cavity.

2. The wastewater treatment device according to claim 1, characterized in that, The preset arrangement is a single-layer array arrangement, wherein: Each of the component insertion mechanisms is connected sequentially along a first direction, which does not overlap with the height direction of the wastewater treatment component; the component insertion mechanism is provided with an annular slot, and the wastewater treatment component is fixed to the component insertion mechanism through the annular slot on the component insertion mechanism.

3. The wastewater treatment device according to claim 2, characterized in that, Each of the component insertion mechanisms includes a top-level component insertion mechanism and a bottom-level component insertion mechanism; The top of the wastewater treatment component is fixed to the top component socket mechanism via a fixed annular slot, and the bottom of the wastewater treatment component is fixed to the bottom component socket mechanism via a fixed annular slot.

4. The wastewater treatment device according to claim 2, characterized in that, The preset arrangement is a multi-layer array arrangement, wherein multiple wastewater treatment components in each layer are arranged according to the single-layer array arrangement.

5. The wastewater treatment apparatus according to any one of claims 1-4, characterized in that, The component socket mechanism is provided with an opening, and the wastewater treatment device also includes an aeration head, which is used to pass through the opening and be exposed in the cavity, and to inject oxygen into the cavity to increase the dissolved oxygen in the wastewater.

6. The wastewater treatment device according to claim 1, characterized in that, The inner electrode layer includes an inner electrode wire, which is used to connect the inner electrode layer to the negative terminal of the power supply. The inner electrode wire is uniformly wound around the outer wall of the inner electrode layer.

7. The wastewater treatment apparatus according to claim 6, characterized in that, The outer electrode layer includes an outer electrode wire, which is used to connect the outer electrode layer to the positive terminal of the power supply. The outer electrode wire is uniformly wound around the outer wall of the outer electrode layer.

8. The wastewater treatment apparatus according to claim 7, characterized in that, Both the inner electrode wire and the outer electrode wire have a filamentous structure or a mesh structure.

9. The wastewater treatment device according to claim 1, characterized in that, Both the inner electrode layer and the outer electrode layer are made of carbon felt or carbon brush.

10. A wastewater treatment device, characterized in that, The device includes an aeration assembly, an inlet assembly, and a wastewater treatment apparatus as described in any one of claims 1-9, wherein the aeration assembly is used to increase dissolved oxygen in the wastewater within a cavity formed by the inner electrode layer surrounding the wastewater treatment apparatus, and the inlet assembly is used to inject wastewater into the anaerobic reaction tank.

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