Micro-electrolysis reaction device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a micro-electrolysis reaction device which comprises an inner reactor, an outer reactor and a water inlet pipe, the inner reactor is arranged in the outer reactor, and the top and the bottom of the inner reactor are both communicated with the outer reactor; the inner reactor is internally provided with a filler layer and an aeration assembly, the aeration assembly is arranged below the filler layer, the water outlet end of the water inlet pipe is located in the inner reactor or the outer reactor, acid wastewater is injected into the outer reactor through the water inlet pipe, the aeration assembly performs aeration and oxygenation on the wastewater, iron and carbon in the filler layer are utilized to generate primary battery reaction, and the secondary battery reaction is performed. Aeration oxygenation enables wastewater to flow upwards, overflow from an opening in the top of the inner reactor and enter the outer reactor, the wastewater in the inner reactor flows to drive the wastewater in the micro-electrolysis reaction area to flow back to the inner reactor from the bottom of the inner reactor for continuous reaction, the time of sufficient reaction of the wastewater is prolonged, and the reaction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field more particularly, relate to a kind of micro-electrolysis reaction device. BACKGROUND

[0002] Micro-electrolysis reactor / tower technology is a kind of wastewater treatment process developed rapidly recently, it mainly utilizes the iron, carbon in micro-electrolysis filler to form primary cell reaction, greatly improves the biodegradability of refractory organic wastewater, while can decompose most of organic matter, so that the refractory organic wastewater is well treated, and its process form mainly has micro-electrolysis reactor / tower, stirred micro-electrolysis tower and internal electrolysis tower and so on various types.Because micro-electrolysis generates following electrochemical reaction process: anode (Fe): Fe-2e→Fe2+, E0(Fe2+ / Fe)=-0.44V (1);Cathode (C): 2H+ +2e→H2 (in acid solution), E0(Fe2+ / Fe)=-0.44V (2);When oxygen is filled: O2+4H+ +4e→2H2O (in acid solution), E0(O2 / H2O)=+1.23V (3);O2+2H2O+4e→4OH- (in alkaline or neutral solution), E0(O2 / H2O)=+0.44V (4);From the standard electrode potential of above-mentioned electrode reaction, electrochemical corrosion reaction is fastest under acid and oxygen filling condition, oxidation-reduction potential is highest, and the decomposition effect on organic matter is strongest, and its oxidation-reduction capacity is only second to hydrogen peroxide.The traditional micro-electrolysis reactor / tower process has the problems of low efficiency and slow reaction speed in actual engineering application. UTILITARY MODEL CONTENT

[0003] The utility model aims at overcoming the insufficient of wastewater reaction efficiency in prior art, and provides a micro-electrolysis reaction device, which can prolong the reaction time of wastewater and improve the reaction efficiency.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] Provide a kind of micro-electrolysis reaction device, including inner reactor, outer reactor and inlet pipe, the inner reactor is located in the outer reactor, the top and bottom of the inner reactor are communicated with the outer reactor;Filler layer and aeration assembly are arranged in the inner reactor, the aeration assembly is arranged below the filler layer, and the water outlet end of the inlet pipe is located in the inner reactor or outer reactor.

[0006] The utility model discloses a micro electrolysis reaction device, and the inside reactor is micro electrolysis filling area, and the space between the outer reactor inner wall and the inside reactor outer wall is micro electrolysis reaction area, and the acidic wastewater is injected into the inside reactor or the outer reactor through the water inlet pipe, until the wastewater height is close to the top of the inside reactor, and the aeration assembly carries out aeration oxygenation to the wastewater, and the gas bubble generated in the aeration rises in the process, and drives the wastewater to flow upwards, and the wastewater contacts the filler layer of the micro electrolysis filling area, and under the condition of acidic oxygen, the iron and carbon in the filler layer are used to generate primary cell reaction, and the oxidizability of the wastewater is improved, and the wastewater that flows upwards after the reaction overflows from the top of the inside reactor, enters the micro electrolysis reaction area, mixes with the wastewater in the micro electrolysis reaction area, and improves the oxidizability of the wastewater in the micro electrolysis reaction area, and the wastewater that overflows from the top of the inside reactor makes the wastewater surface in the micro electrolysis reaction area rise, and part of the wastewater forms compensation flow and enters the micro electrolysis filling area through the reflux of the inside reactor bottom, and the aeration makes the wastewater that refluxes from the inside reactor bottom flow upwards and contact the filler layer, and further reaction is carried out, and the wastewater circulates between the micro electrolysis filling area and the micro electrolysis reaction area, and the circulation of the wastewater between the micro electrolysis filling area and the micro electrolysis reaction area prolongs the time of the full contact of the wastewater and the filler layer, thereby prolonging the reaction time of the wastewater and improving the reaction efficiency.

[0007] Further, the aeration assembly comprises an aeration disc, an aeration valve and an air inlet pipe, the aeration valve is arranged on the air inlet pipe, and the air inlet pipe is communicated with the aeration disc. Oxygen is input into the aeration disc through the air inlet pipe and then into the inside reactor through the aeration disc, and the aeration amount of the aeration assembly can be adjusted by controlling the opening degree of the aeration valve.

[0008] Further, the diameter of the aeration disc is equal to the diameter of the inside reactor. The diameter of the aeration disc is equal to the diameter of the inside reactor, so that the aeration is more sufficient.

[0009] Further, the water inlet pipe penetrates through the filler layer, the water outlet end of the water inlet pipe is located in the inside reactor and below the aeration assembly. After the wastewater in the water inlet pipe flows out and mixes with the wastewater that refluxes from the inside reactor bottom, the wastewater rapidly contacts the filler layer, the reaction efficiency is improved, and meanwhile, the wastewater in the water inlet pipe that has not reacted can be prevented from mixing with the wastewater in the micro electrolysis reaction area to reduce the oxidizability of the wastewater in the micro electrolysis reaction area.

[0010] Further, the filler layer is provided with at least two layers, and the aeration assembly is provided with at least two groups and arranged below each layer of the filler layer. The provision of at least two layers of the filler layer can make the reaction more sufficient, and meanwhile, the stratified design can relieve the problem of hardening of the filler caused by the adhesion of reaction products and keep the water flow smooth; the provision of the aeration assembly below each layer of the filler layer can make the oxygenation more sufficient, the surface of the filler layer can be renewed through the shearing force of the aeration, the mass transfer efficiency of the wastewater and the filler can be improved, and the circulation speed of the wastewater can be accelerated.

[0011] Further, the side wall of the outer reactor is provided with a water outlet weir. The wastewater is injected into the outer reactor through the water inlet pipe until the wastewater covers the water outlet weir. The aeration assembly aerates and oxygenates the wastewater. The wastewater contacts the filler layer in the micro-electrolysis filling zone to cause the original cell reaction and improve the oxidation of the wastewater. During the circulation of the wastewater between the micro-electrolysis filling zone and the micro-electrolysis reaction zone, part of the wastewater in the micro-electrolysis reaction zone flows out of the outer reactor through the water outlet weir and enters the next reaction stage. Another part of the wastewater flows back to the micro-electrolysis filling zone from the bottom of the inner reactor and contacts the filler to continue the reaction. By reasonably setting the water inlet speed and the water outlet speed, the wastewater can flow out of the water outlet weir after sufficient circulation, so that the reaction device can continuously flow out of the wastewater with sufficient reaction and oxidation that meets the requirements, thereby improving the work efficiency.

[0012] Further, the height of the top of the inner reactor is higher than the height of the water outlet weir. The height of the top of the inner reactor is higher than the height of the water outlet weir, which can prevent the wastewater from overflowing the top of the inner reactor and flowing back into the inner reactor without fully mixing with the wastewater in the outer reactor, thereby reducing the reaction efficiency and the circulation speed.

[0013] Further, the controller and a water quality detector are further included. The detection end of the water quality detector is located between the inner wall of the outer reactor and the outer wall of the inner reactor. The water quality detector is connected with the controller, and the controller is connected with the aeration assembly. When the water quality detector detects that the oxidation of the wastewater in the micro-electrolysis reaction zone is too high, the aeration amount of the aeration assembly is reduced to reduce the oxidation of the wastewater. When the water quality detector detects that the oxidation of the wastewater in the micro-electrolysis zone is insufficient, the aeration amount of the aeration assembly is increased to improve the oxidation of the wastewater. According to the change of the oxidation of the wastewater, the aeration amount of the aeration assembly is adjusted in real time, so that the oxidation of the wastewater is maintained within a suitable range, and oxygen is fully utilized to avoid waste.

[0014] Further, the water quality detector is an ORP detector. The ORP detector detects the oxidation and reduction of the water body by detecting the oxidation-reduction potential of the water body, has high measurement accuracy, fast response speed, and strong environmental adaptability.

[0015] Further, the water outlet weir is provided with a water outlet valve, and the water outlet valve is connected with the controller. When the water quality detector detects that the oxidation of the wastewater is too high, the controller increases the opening degree of the water outlet valve to speed up the flow rate of the wastewater out of the outer reactor, thereby reducing the circulation number of the wastewater out of the outer reactor and reducing the oxidation. When the water quality detector detects that the oxidation of the wastewater is insufficient, the controller reduces the opening degree of the water outlet valve to slow down the flow rate of the wastewater out of the outer reactor, thereby increasing the circulation number of the wastewater out of the outer reactor and increasing the oxidation.

[0016] Compared with the prior art, the micro-electrolysis reaction device has the advantages that:

[0017] The micro-electrolysis reaction device has the following advantages: 1. The aeration oxygenation makes the wastewater in the micro-electrolysis filling area flow upwards and overflow from the top of the inner reactor, and part of the wastewater in the micro-electrolysis reaction area flows back to the micro-electrolysis filling area from the bottom of the inner reactor, so that the wastewater circulates between the micro-electrolysis filling area and the micro-electrolysis reaction area, prolongs the reaction time of the wastewater and improves the reaction efficiency; 2. The opening degree of the aeration valve can be adjusted in real time according to the oxidation-reduction potential of the wastewater detected by the water quality detector, the aeration amount of the aeration assembly is adjusted, the aeration amount is maintained within an appropriate range, the oxidation of the wastewater is maintained within a set range, and the oxygen is fully utilized; 3. The opening degree of the outlet valve can be adjusted in real time according to the oxidation-reduction potential of the wastewater detected by the water quality detector, the speed of the wastewater flowing out of the outer reactor is changed, so that the number of times of participating in the circulation when the wastewater flows out of the outer reactor is changed, and the oxidation of the wastewater is maintained within a set range. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the micro-electrolysis reaction device of the present application;

[0019] Figure 2 Fig. 2 is a structural schematic view of the inner reactor of the micro-electrolysis reaction device of the present application;

[0020] Figure 3 Fig. 3 is a structural schematic view of the outer reactor of the micro-electrolysis reaction device of the present application.

[0021] In the drawings: 1. Inner reactor; 11. Packing layer; 12. Aeration assembly; 121. Aeration disc; 122. Aeration valve; 123. Air inlet pipe; 2. Outer reactor; 21. Outlet weir; 3. Water inlet pipe; 4. Water quality detector. DETAILED DESCRIPTION

[0022] The present application will be further described in conjunction with specific embodiments. The drawings are only used for exemplary description, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the present patent; in order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and thus the terms describing the positional relationships in the drawings do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus the terms describing the positional relationships in the drawings are only used for exemplary illustration and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] Embodiment one

[0025] As Figures 1 to 3 shown is a first embodiment of the micro-electrolysis reaction device, comprising an inner reactor 1, an outer reactor 2 and a water inlet pipe 3, the inner reactor 1 is arranged in the outer reactor 2, and the top and bottom of the inner reactor 1 are communicated with the outer reactor 2; the inner reactor 1 is internally provided with a filler layer 11 and an aeration assembly 12, the aeration assembly 12 is arranged below the filler layer 11, and the water outlet end of the water inlet pipe 3 is located in the inner reactor 1 or the outer reactor 2.

[0026] The micro-electrolysis reaction device of the present application, the inner reactor 1 is internally a micro-electrolysis filling area, the space between the inner wall of the outer reactor 2 and the outer wall of the inner reactor 1 is a micro-electrolysis reaction area, the acidic wastewater is injected into the inner reactor 1 or the outer reactor 2 through the water inlet pipe 3, until the wastewater height approaches the top of the inner reactor 1, the aeration assembly 12 performs aeration and oxygenation on the wastewater, the gas bubbles generated by aeration generate viscous force in the rising process, driving the wastewater to flow upwards, at the same time, the wastewater contacts the filler layer 11 in the micro-electrolysis filling area, under the condition of acidic oxygen, the iron and carbon in the filler layer 11 generate a primary cell reaction, improving the oxidizability of the wastewater; the wastewater flowing upwards after reaction overflows from the top of the inner reactor 1, enters the micro-electrolysis reaction area, and mixes with the wastewater in the micro-electrolysis reaction area, improving the oxidizability of the wastewater in the micro-electrolysis reaction area; the wastewater overflowing from the top of the inner reactor 1 makes the wastewater surface in the micro-electrolysis reaction area rise, part of the wastewater forms a compensation flow, returns to the micro-electrolysis filling area through the bottom of the inner reactor 1, the aeration makes the wastewater returning from the bottom of the inner reactor 1 flow upwards and contact the filler layer 11, for further reaction, so that the wastewater circulates between the micro-electrolysis filling area and the micro-electrolysis reaction area; the circulation of the wastewater between the micro-electrolysis filling area and the micro-electrolysis reaction area prolongs the time of the wastewater fully contacting the filler layer 11, thereby prolonging the time of the wastewater fully reacting and improving the reaction efficiency.

[0027] The aeration assembly 12 comprises an aeration disc 121, an aeration valve 122 and an air inlet pipe 123, the aeration valve 122 is arranged on the air inlet pipe 123, and the air inlet pipe 123 is in communication with the aeration disc 121. Oxygen is input into the aeration disc 121 through the air inlet pipe 123 and then into the inner reactor 1 through the aeration disc 121. The aeration amount of the aeration assembly 12 can be adjusted by controlling the opening degree of the aeration valve 122.

[0028] The diameter of the aeration disc 121 is equal to the diameter of the inner reactor 1. The equal diameter of the aeration disc 121 and the inner reactor 1 enables more sufficient aeration.

[0029] The water inlet pipe 3 penetrates the filler layer 11, and the water outlet end of the water inlet pipe 3 is located in the inner reactor 1 and below the aeration assembly 12. After the wastewater in the water inlet pipe 3 flows out and mixes with the wastewater flowing back from the bottom of the inner reactor 1, it quickly contacts the filler layer 11, improving the reaction efficiency. At the same time, it can avoid the mixing of unreacted wastewater in the water inlet pipe 3 with the wastewater in the micro-electrolysis reaction zone, resulting in a decrease in the oxidizing property of the wastewater in the micro-electrolysis reaction zone. In this embodiment, the water outlet end of the water inlet pipe 3 is provided with a perforated water distribution pipe, so that the wastewater can flow more uniformly to the filler layer 11.

[0030] In this embodiment, the inner reactor 1 and the outer reactor 2 are both cylindrical structures, and the axis of the inner reactor 1 coincides with the axis of the outer reactor 2. The top and bottom of the inner reactor 1 are both provided with openings, and there is a gap between the bottom opening of the inner reactor 1 and the bottom of the outer reactor 2. The coaxial cylindrical structure of the inner reactor 1 and the outer reactor 2 makes the distance between the edge of the top opening of the inner reactor 1 and the inner wall of the outer reactor 2 constant, so that the wastewater overflowing from the inner reactor 1 can quickly and uniformly mix with the wastewater in the outer reactor 2.

[0031] The pH value of the acidic wastewater is 3-5. The inner reactor 1 is fixedly installed on the mounting frame arranged in the outer reactor 2.

[0032] As shown in Figure 1 and Figure 2 , the filler layer 11 is provided with at least two layers. The provision of at least two layers of the filler layer 11 increases the contact area between the filler and the wastewater, making the reaction more sufficient. At the same time, the layered design can alleviate the problem of hardening of the filler due to the adhesion of reaction products, keeping the water flow unobstructed. In addition, different materials can be used in different filler layers 11, improving flexibility.

[0033] The aeration assembly 12 is provided with at least two groups, which are arranged below each layer of the filler layer 11. The arrangement of the aeration assembly 12 below each layer of the filler layer 11 can make the oxygenation more sufficient. The shear force of aeration can update the surface of the filler layer 11, improve the mass transfer efficiency of the wastewater and the filler, and also accelerate the circulation speed of the wastewater.

[0034] In the embodiment, the inner reactor 1 is provided with two layers of filler layers 11, and each of the filler layers 11 is provided with a group of aeration assemblies 12 below, as shown in the figure. Figure 2

[0035] The working principle of the micro-electrolysis reaction device in the embodiment is as follows: acidic wastewater with pH of 3-5 is injected into the micro-electrolysis filling area of the inner reactor 1 through the perforated water distribution pipe at the outlet end of the water inlet pipe 3, the gas inlet pipes 123 of the two groups of aeration assemblies 12 input oxygen into the two groups of aeration discs 121, the aeration discs 121 with the same diameter as the inner reactor 1 aerate and oxygenate the wastewater, the gas bubbles generated by aeration generate viscous force in the rising process, drive the wastewater to flow upwards, and at the same time, the wastewater contacts the filler layer 11 in the micro-electrolysis filling area, and under the acidic aerobic condition, the iron and carbon in the filler layer 11 generate a primary cell reaction to improve the oxidizability of the wastewater; the wastewater flowing upwards after the reaction overflows from the top of the inner reactor 1, enters the micro-electrolysis reaction area, and mixes with the wastewater in the micro-electrolysis reaction area to improve the oxidizability of the wastewater in the micro-electrolysis reaction area; since the inner reactor 1 and the outer reactor 2 are cylindrical, the overflowed wastewater can be more quickly mixed with the wastewater previously flowing into the outer reactor 2 to reduce the concentration polarization; the wastewater overflowing from the top of the inner reactor 1 makes the water surface of the wastewater in the micro-electrolysis reaction area rise, part of the wastewater forms a compensating flow, returns to the micro-electrolysis filling area through the bottom of the inner reactor 1, and the aeration makes the wastewater returning from the bottom of the inner reactor 1 flow upwards and contact the filler layer 11 to further react, so that the wastewater circulates between the micro-electrolysis filling area and the micro-electrolysis reaction area; the circulation of the wastewater between the micro-electrolysis filling area and the micro-electrolysis reaction area prolongs the time for the wastewater to fully contact the filler layer 11, thereby prolonging the time for the wastewater to fully react and improving the reaction efficiency.

[0036] Embodiment two

[0037] The second embodiment of the micro-electrolysis reaction device of the utility model is similar to the first embodiment, and the difference lies in that the side wall of the outer reactor 2 is provided with a water outlet weir 21. The wastewater is injected into the outer reactor 2 through the water inlet pipe 3 until the wastewater submerges the water outlet weir 21, the aeration assembly 12 aerates and oxygenates the wastewater, the wastewater contacts the filler layer 11 in the micro-electrolysis filling area to generate a primary cell reaction and improve the oxidizability of the wastewater; in the process of circulating the wastewater between the micro-electrolysis filling area and the micro-electrolysis reaction area, part of the wastewater in the micro-electrolysis reaction area flows out of the outer reactor 2 through the water outlet weir 21 to enter the next reaction stage, and the other part is driven by the wastewater flowing in the inner reactor 1 to flow into the inner reactor 1 again, contacts the filler layer 11, and continues to react; through reasonable setting of the water inlet speed and the water outlet speed, the wastewater flowing out of the water outlet weir 21 has undergone a sufficient number of circulations, so that the reaction device can continuously flow out of the wastewater with sufficient reaction and oxidizability meeting the requirements, and the working efficiency is improved. ​

[0038] As Figure 1 shown, the height of the top opening of the inner reactor 1 is higher than the height of the water outlet weir 21. Making the height of the top opening of the inner reactor 1 higher than the height of the water outlet weir 21 can prevent the wastewater surface from being too high, so that the wastewater just overflowing from the top of the inner reactor 1 cannot be fully mixed with the wastewater in the outer reactor 2 and flows back into the inner reactor 1 from the top opening of the inner reactor 1, reducing the reaction efficiency and the circulation speed. In this embodiment, the top opening of the inner reactor 1 is 4-10 cm higher than the water outlet weir 21.

[0039] Example Three

[0040] This embodiment is a third embodiment of the micro-electrolysis reaction device of the utility model, which is similar to the second embodiment, except that, as Figure 1 and Figure 3 shown, it further comprises a controller and a water quality detector 4, the detection end of the water quality detector 4 is located between the inner wall of the outer reactor 2 and the outer wall of the inner reactor 1, i.e. the detection end of the water quality detector 4 is located in the micro-electrolysis reaction zone, the water quality detector 4 is connected with the controller, and the controller is connected with the aeration assembly 12. When the water quality detector 4 detects that the oxidation of the wastewater in the micro-electrolysis reaction zone is too high, it transmits a signal to the controller, and the controller controls the aeration assembly 12 to reduce the aeration amount, preventing excessive aeration and causing oxygen to be not fully utilized; when the water quality detector 4 detects that the oxidation of the wastewater in the micro-electrolysis zone is insufficient, the controller controls the aeration assembly 12 to increase the aeration amount, improving the oxidation of the wastewater; according to the change in the oxidation of the wastewater, the aeration amount of the aeration assembly 12 is adjusted in real time, so that the oxidation of the wastewater is maintained within an appropriate range while fully utilizing oxygen and avoiding waste.

[0041] The aeration valve 122 is connected with the controller, and the controller can adjust the aeration amount of the aeration assembly 12 by controlling the opening degree of the aeration valve 122.

[0042] The water quality detector 4 is an ORP detector. The ORP detector detects the oxidation and reduction of the water body by detecting the oxidation-reduction potential of the water body, has high measurement accuracy, fast response speed, and strong environmental adaptability.

[0043] In this embodiment, the controller is a PLC controller. The PLC controller has high reliability, wide application range, and is easy to maintain.

[0044] The water outlet weir 21 is provided with a water outlet valve connected with the controller. When the water quality detector detects that the oxidation of the wastewater is too high, the controller increases the opening degree of the water outlet valve to accelerate the speed of the wastewater flowing out of the outer reactor, thereby reducing the circulation times experienced by the wastewater flowing out of the outer reactor, so as to reduce the oxidation. When the oxidation of the wastewater is detected to be insufficient, the controller reduces the opening degree of the water outlet valve to slow down the speed of the wastewater flowing out of the outer reactor, thereby increasing the circulation times experienced by the wastewater flowing out of the outer reactor, so as to increase the oxidation.

[0045] The control value of the water quality detector can be set differently according to different water quality. For example, when the ORP is detected to be higher than 350mv, the opening degree of the aeration valve 122 is reduced and the opening degree of the water outlet valve is increased. When the ORP is detected to be lower than 350mv, the opening degree of the aeration valve 122 is increased and the opening degree of the water outlet valve is reduced.

[0046] The working principle of the micro-electrolysis reaction device of the embodiment is as follows: the wastewater is injected into the micro-electrolysis filling area of the inner reactor 1 through the water inlet pipe 3, the oxygen is input into the aeration disc 121 through the air inlet pipe 123, and then is input into the inner reactor 1 through the aeration disc 121 to aerate and oxygenate the wastewater. The wastewater contacts the filler layer 11 in the micro-electrolysis filling area, and under the acidic and aerobic conditions, the iron and carbon in the filler layer 11 generate a primary cell reaction to improve the oxidation of the wastewater. The wastewater flows out of the outer reactor 2 through the water outlet weir 21, and the aeration and oxygenation make the wastewater circulate between the inner reactor 1 and the outer reactor 2. For example, when the water quality detector 4 detects that the ORP is higher than 350mv, the opening degree of the aeration valve 122 is increased to increase the aeration amount, and the opening degree of the water outlet valve is increased to reduce the circulation times of the wastewater, so as to reduce the ORP. When the ORP is detected to be lower than 350mv, the opening degree of the aeration valve 122 is reduced to reduce the aeration amount, and the opening degree of the water outlet valve is reduced to increase the circulation times of the wastewater, so as to increase the ORP. By instantaneously adjusting the opening degrees of the aeration valve 122 and the water outlet valve, the ORP of the wastewater can be maintained within the set range.

[0047] In the specific contents of the above specific embodiments, any inconsistent combination of technical features can be combined, and in order to make the description concise, not all possible combinations of the above technical features are described, but as long as the combination of these technical features does not exist, it should be considered as the scope of the description.

[0048] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A micro-electrolysis reaction device, characterized in that, It includes an inner reactor (1), an outer reactor (2), and an inlet pipe (3). The inner reactor (1) is located inside the outer reactor (2), and the top and bottom of the inner reactor (1) are connected to the outer reactor (2). The inner reactor (1) is provided with a packing layer (11) and an aeration component (12) inside. The aeration component (12) is located below the packing layer (11). The outlet end of the inlet pipe (3) is located inside the inner reactor (1) or the outer reactor (2).

2. The micro-electrolysis reactor according to claim 1, characterized in that, The aeration assembly (12) includes an aeration disc (121), an aeration valve (122), and an air inlet pipe (123). The aeration valve (122) is located on the air inlet pipe (123), and the air inlet pipe (123) is connected to the aeration disc (121).

3. The micro-electrolysis reactor according to claim 2, characterized in that, The diameter of the aeration disc (121) is equal to the diameter of the inner reactor (1).

4. The micro-electrolysis reactor according to claim 1, characterized in that, The inlet pipe (3) passes through the packing layer (11), and the outlet end of the inlet pipe (3) is located in the inner reactor (1) and below the aeration assembly (12).

5. The micro-electrolysis reactor according to claim 1, characterized in that, The packing layer (11) has at least two layers, and the aeration assembly (12) has at least two sets, which are respectively arranged below each packing layer (11).

6. The micro-electrolysis reactor according to any one of claims 1 to 5, characterized in that, The outer reactor (2) is provided with an outlet weir (21) on its side wall.

7. The micro-electrolysis reactor according to claim 6, characterized in that, The height of the top of the inner reactor (1) is higher than the height of the outlet weir (21).

8. The micro-electrolysis reactor according to claim 6, characterized in that, It also includes a controller and a water quality detector (4), the detection end of which is located between the inner wall of the outer reactor (2) and the outer wall of the inner reactor (1). The water quality detector (4) is connected to the controller, which is connected to the aeration assembly (12).

9. The micro-electrolysis reactor according to claim 8, characterized in that, The water quality detector (4) is an ORP detector.

10. The micro-electrolysis reactor according to claim 8, characterized in that, The outlet weir (21) is equipped with an outlet valve, which is connected to the controller.

Images