Electrode assembly for bipolar pulse electrochemical coupling microbial denitrification

Abstract

This utility model relates to an electrode assembly for bipolar pulsed electrochemical coupling microbial denitrification, comprising a support plate and an electrode shell. The electrode shell is mounted on the top of the support plate, and multiple electrode supports are provided on the inner wall of the electrode shell. Each electrode support includes a first support and a second support. A first electrode plate and a second electrode plate are sequentially and parallelly inserted between the first and second supports via studs. The first and second electrode plates are staggered in the transverse and longitudinal directions of the electrode shell. A first electrode is inserted into one end of the first electrode plate, and a second electrode is inserted into one end of the second electrode plate. The first and second electrodes are connected to a power source. A first flange and a second flange are respectively sealed to both ends of the electrode shell. This electrode assembly for bipolar pulsed electrochemical coupling microbial denitrification has advantages such as improved adaptability, ease of installation, and improved energy utilization.

Description

Technical Field

[0001] This utility model relates to the field of biological wastewater treatment technology, and in particular to an electrode assembly for bipolar pulsed electrochemical coupling of microbial denitrification. Background Technology

[0002] Currently, traditional electrode-based wastewater treatment processes require substantial electrical energy to drive electrochemical reactions, especially when treating large-scale wastewater, where energy consumption becomes a significant issue. This not only increases operating costs but also places a heavy burden on the environment and raises energy consumption levels. Furthermore, during the nitrogen removal process, the nitrogen removal rate may be unstable, influenced by various factors such as current density, electrode materials, and wastewater composition. These factors can lead to incomplete nitrogen removal, affecting treatment efficiency and impacting the treatment of a single type of wastewater.

[0003] To address these issues, we developed a bipolar pulsed electrochemical coupling electrode assembly for microbial denitrification. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art by providing a bipolar pulsed electrochemical coupling electrode assembly for microbial denitrification, which has the advantages of improved adaptability, easy installation, and improved energy utilization.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an electrode assembly for bipolar pulsed electrochemical coupling microbial denitrification, comprising a support plate, an electrode shell mounted on the top of the support plate, and multiple electrode supports provided on the inner wall of the electrode shell. The electrode supports include a first support and a second support arranged in parallel. A first electrode plate and a second electrode plate are sequentially and parallelly inserted between the first support and the second support via studs. A second electrode is inserted into one end of the second electrode plate, and a first electrode is inserted into one end of the first electrode plate. The first electrode plate and the second electrode plate are sequentially and alternately arranged in the transverse and longitudinal directions of the electrode shell.

[0006] Preferably, a first flange and a second flange are provided at each end of the electrode housing, and the first electrode and the second electrode are connected to a power source.

[0007] Preferably, the second electrode includes an electrode body, one end of which is provided with a slot and the other end of which is provided with an inner annular surface. One end of the inner annular surface is provided with an external thread, and the slot is inserted into the second electrode plate.

[0008] Preferably, the first support is provided with a first U-shaped groove, which covers the outside of the first electrode plate and the second electrode plate.

[0009] Preferably, the second bracket is provided with a second U-shaped groove, which covers the outside of the first electrode plate and the second electrode plate, and one end of the second U-shaped groove is offset from one end of the first U-shaped groove.

[0010] Preferably, a water inlet pipe is provided on the outer wall of the first flange, and the water inlet pipe is connected to the electrode shell.

[0011] Preferably, a water outlet pipe is provided on the outer wall of the second flange, and the electrode housing is connected to the water outlet pipe.

[0012] Preferably, a first circular hole is provided at each of the four corners of the first electrode plate, and the stud is disposed through the first circular hole.

[0013] Preferably, a second circular hole is provided at each of the four corners of the second electrode plate, and the corresponding positions of the first circular hole and the second circular hole are fixedly connected by the stud.

[0014] Preferably, the first electrode plate is provided with a coating, the thickness of which is 0.6 mm.

[0015] Preferably, the top of the support plate is provided with a fork-shaped plate, which abuts against the electrode shell.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] The electrode assembly for bipolar pulsed electrochemical coupling microbial denitrification described in this invention features an alternating arrangement of the first and second electrodes to adapt to different needs and facilitate subsequent biological denitrification. The circular holes on the electrodes facilitate their arrangement and installation. The voltage and current of the electrodes inside the electrode housing can be precisely controlled, improving energy utilization. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the electrode assembly for bipolar pulsed electrochemical coupling of microbial denitrification according to the present invention.

[0019] Figure 2 This is a schematic diagram of the connection structure between the first electrode plate and the second electrode plate of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the first electrode plate and the second electrode plate of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figures 1 to 3A bipolar pulsed electrochemical coupling electrode assembly for microbial denitrification includes a horizontal support plate 10. An acrylic electrode housing 20 is mounted on the top of the support plate 10. Multiple electrode supports are provided on the inner wall of the electrode housing 20. The electrode supports include a first support 81 and a second support 82 arranged in parallel. A first electrode plate 70 and a second electrode plate 60 are sequentially and parallelly inserted between the first support 81 and the second support 82 via studs 90, which only serve a fixing function. A second electrode 50 is inserted into one end of the second electrode plate 60, and a first electrode 59 is inserted into one end of the first electrode plate 70. The first electrode plate 70 and the second electrode plate 60 are staggered in the horizontal and vertical directions of the electrode housing 20. A first flange 30 and a second flange 40 are provided at each end of the electrode housing 20. The first electrode 59 and the second electrode 50 are connected to a power supply with a voltage of 2-5V, an output frequency of 1-100Hz, and a current density of 400-1000A / m. 2 The first electrode plate 70 is 3mm thick. The first electrode plate 70 is a titanium-based coated metal plate, and the second electrode plate 60 is a copper foil plate, 3mm thick. The first electrode 59 and the second electrode 50 are alternately arranged at one end of the electrode shell 20, with a total of 25 plates, 12 of which are first electrode plates. Similarly, there are 25 plates at the other end of the electrode shell 20, with 12 of which are second electrode plates.

[0023] The second electrode 50 includes an electrode body 52. ​​One end of the electrode body 52 is provided with a slot 521, and the other end is provided with an inner ring surface 53. The inner ring surface 53 is sealed by a rubber ring. The outer end faces of the first flange and the second flange are sealed. One end of the inner ring surface 53 is provided with an external thread 51. The external thread 51 is fixedly connected to the power supply. The slot 521 is inserted into the second electrode plate 60.

[0024] The first support 81 is provided with a first U-shaped groove 811, which covers the outside of the first electrode plate 70 and the second electrode plate 60. The second support 82 is provided with a second U-shaped groove 822, which covers the outside of the first electrode plate 70 and the second electrode plate 60, and one end of the second U-shaped groove 822 is offset from one end of the first U-shaped groove 811. The ends of the first U-shaped groove 811 and the second U-shaped groove 822 are respectively provided with L-shaped structures, which are offset and have a clearance fit.

[0025] A water inlet pipe 35 is provided on the outer wall of the first flange 30, and the water inlet pipe 35 is connected to the electrode housing 20. A water outlet pipe 45 is provided on the outer wall of the second flange 40, and the electrode housing 20 is connected to the water outlet pipe 45. The water outlet pipe 45 is connected to a tee for easy venting.

[0026] The first electrode plate 70 is the positive electrode, and each of its four corners has a first circular hole 75 through which a stud 90 passes. The second electrode plate 60 is the negative electrode, and each of its four corners has a second circular hole 65. The corresponding positions of the first circular holes 75 and second circular holes 65 are fixedly connected by studs 90 and nuts 91. The stud 90 has a smooth rod 95 in the middle, meaning that the studs pass through the corresponding positions at the four corners of the first electrode plate 70 and the second electrode plate 60 in the longitudinal direction. The ends of the first electrode plate 70 and the second electrode plate 60 are connected in a plane to form a cathode and anode plates 670. Except for the first electrode plate and the second electrode plate 60 at both ends, the rest are cathode and anode plates. The first electrode plate 70 has a plating layer with a thickness of 0.6 mm.

[0027] A fork-shaped plate 11 is provided at the top of the support plate 10, and the fork-shaped plate 11 abuts against the electrode housing 20. The fork-shaped plate 11 supports the electrode housing, and the temperature inside the electrode housing 20 is less than 50°C.

[0028] After the first electrode 59 and the second electrode 50 are connected to the power supply, the sewage enters the electrode shell 20 from the inlet pipe 35. Electron transfer occurs between the first electrode plate 70 and the second electrode plate 60 under the action of the power supply. The pollutants directly lose electrons on the first electrode plate 70 and are oxidized. The pollutants directly gain electrons on the second electrode plate 60 and are reduced. The intermediate products migrate to the microbial packing area through the outlet pipe 45 and are converted into nitrogen gas under the action of denitrifying bacteria activated by the electric field.

[0029] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. An electrode assembly for use in bipolar pulsed electrochemical coupling microbial denitrification, characterized by: The device includes a support plate (10), on the top of which an electrode housing (20) is mounted. The inner wall of the electrode housing (20) is provided with multiple electrode supports. The electrode supports include a first support (81) and a second support (82) arranged in parallel. A first electrode plate (70) and a second electrode plate (60) are sequentially and parallelly inserted between the first support (81) and the second support (82) through studs (90). One end of the second electrode plate (60) is connected to a second electrode (50), and one end of the first electrode plate (70) is connected to a first electrode (59). The first electrode plate (70) and the second electrode plate (60) are sequentially and alternately arranged in the transverse and longitudinal directions of the electrode housing (20). A first flange (30) and a second flange (40) are provided at each end of the electrode housing (20). The first electrode (59) and the second electrode (50) are connected to a power source.

2. The electrode assembly for denitrification by bipolar pulsed electrochemical coupling of microorganisms according to claim 1, wherein The second electrode (50) includes an electrode body (52), one end of which is provided with a slot (521) and the other end is provided with an inner ring surface (53), one end of which is provided with an external thread (51), and the slot (521) is inserted into the second electrode plate (60).

3. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling of microorganisms according to claim 1, characterized in that, The first bracket (81) is provided with a first U-shaped groove (811), which covers the outside of the first electrode plate (70) and the second electrode plate (60).

4. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling microorganism according to claim 3, wherein The second bracket (82) is provided with a second U-shaped groove (822), which covers the outside of the first electrode plate (70) and the second electrode plate (60), and one end is offset from one end of the first U-shaped groove (811).

5. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling of microorganisms according to claim 1, wherein The outer wall of the first flange (30) is provided with a water inlet pipe (35), which is connected to the electrode shell (20).

6. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling of microorganisms according to claim 5, characterized in that, The outer wall of the second flange (40) is provided with a water outlet pipe (45), and the electrode housing (20) is connected to the water outlet pipe (45).

7. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling microorganisms according to claim 1, wherein The first electrode plate (70) has a first round hole (75) at each of its four corners, and the stud (90) is provided through the first round hole (75).

8. The electrode assembly for bipolar pulsed electrochemical coupling of microbial denitrification according to claim 7, characterized in that, The second electrode plate (60) has a second round hole (65) at each of its four corners, and the corresponding positions of the first round hole (75) and the second round hole (65) are fixedly connected by the stud (90).

9. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling microorganisms according to claim 1, wherein The first electrode plate (70) is provided with a coating with a thickness of 0.6 mm.

10. The electrode assembly for the denitrification by bipolar pulsed electrochemical coupling of microorganisms according to claim 1, characterized in that, The top of the support plate (10) is provided with a fork-shaped plate (11), which abuts against the electrode shell (20).

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