A device for treating domestic sewage

Abstract

This utility model discloses a domestic sewage treatment device, including a main body, an equalization tank, an anoxic tank, an electrolysis tank, an aerobic tank, and an MBR tank located inside the main body, a discharge pump installed on the right side of the main body, an electrolysis power supply located above the electrolysis tank, two aluminum electrodes inserted into the inside of the electrolysis tank, and an adjustable electrode support set on the top of the electrolysis tank, including two support columns symmetrically fixed on the top of the main body and a horizontal column slidably installed between the two support columns. By installing the two aluminum electrodes of the device in the electrolysis tank through this adjustable electrode support, the present utility model allows subsequent operators to adaptively adjust the installation height of the aluminum electrodes according to the specific liquid level in the electrolysis tank. At the same time, if the aluminum electrodes are damaged in the future, they can be quickly removed from the device for inspection and maintenance, which improves the flexibility of use and the convenience of subsequent maintenance of the entire domestic sewage treatment device.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a domestic wastewater treatment device. Background Technology

[0002] As people pay more and more attention to the environment, the treatment of domestic sewage is also receiving more and more attention. A common treatment method is to treat sewage through a domestic sewage treatment device. This domestic sewage treatment device uses an electrochemical phosphorus removal coupled with a biochemical method to treat domestic sewage for denitrification, phosphorus removal and other treatments. It consists of an equalization tank, an anoxic tank, an electrolysis tank, an aerobic tank, an MBR tank, a return system, an aeration system and an electrical control box. Sewage flows into the equalization tank by gravity, and then overflows through the anaerobic, electrolysis, aerobic and MBR processes in sequence. Finally, it is pumped out by a discharge pump, disinfected by ultraviolet light and then discharged, thus completing the treatment of domestic sewage.

[0003] In existing sewage treatment devices, the two aluminum electrodes in the electrolytic cell are usually fixed directly in the cell by bolts or welding. This makes it impossible to adjust the installation height of the two aluminum electrodes during subsequent use, and it is also inconvenient to disassemble and replace the aluminum electrodes when they are damaged. This reduces the flexibility of use and the convenience of maintenance of the entire sewage treatment device. Therefore, this utility model needs to improve and optimize the existing sewage treatment device. Utility Model Content

[0004] The purpose of this invention is to provide a domestic sewage treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a domestic sewage treatment device, comprising...

[0006] The main body, the equalization tank, anoxic tank, electrolysis tank, aerobic tank and MBR tank located inside the main body, the discharge pump installed on the right side of the main body, the electrolysis power supply set above the electrolysis tank, and the two aluminum electrodes inserted into the inside of the electrolysis tank.

[0007] And an adjustable electrode support set on top of the electrolytic cell, including two support columns symmetrically fixed on the top of the main body, a horizontal column slidably installed between the two support columns, a support rod fixed on the bottom surface of the horizontal column, and a base plate fixed on the bottom surface of the support rod, with both aluminum electrodes installed on the bottom surface of the base plate.

[0008] Preferably, both ends of the horizontal column are fixed with support sleeves, and the support sleeves are slidably sleeved on the surface of the support column.

[0009] Preferably, the adjustable electrode support further includes transverse grooves formed inside both ends of the cross column, a transverse slider slidably installed in the transverse grooves, a side locking rod fixed to one side surface of the transverse slider, multiple slots formed on the surface of the support column, a bottom groove formed on the bottom surface of the cross column and communicating with the transverse grooves, and a bottom sliding rod fixed to the bottom surface of the transverse slider. The bottom end of the bottom sliding rod passes through the bottom groove to the bottom of the cross column and is fixed with an L-shaped bottom slider. The end of the side locking rod passes through one of the slots.

[0010] Preferably, the adjustable electrode bracket further includes a movable plate movably installed at the center of the top of the cross column, two limiting rods fixed to the bottom of the movable plate, and two through holes opened on the surface of the cross column. The bottom end of the limiting rod passes through the through holes to the bottom of the cross column, and the bottom end of the limiting rod is located on one side of the L-shaped bottom slider.

[0011] Preferably, the adjustable electrode bracket further includes a side groove formed on the inner wall of the perforation side, a spring and a semi-circular side block installed in the side groove, and two side slots corresponding to the semi-circular side block formed on the side of the limiting stop bar. The semi-circular side block is movably installed in the side groove by the spring, and the end of the semi-circular side block pops out into one of the side slots.

[0012] Preferably, one end of the spring is fixed to the inner wall of the side groove, and the other end of the spring is fixed to the semi-circular side block.

[0013] Preferably, a rectangular notch is provided on both sides of the movable plate.

[0014] Preferably, an air pump is provided at the bottom of the main body, and aeration pipes are installed in the anoxic tank, aerobic tank and MBR tank, and the aeration pipes are connected to the air pump through pipes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves and optimizes the existing domestic sewage treatment device by adding an adjustable electrode support to its original structure. Two aluminum electrodes are then installed in the electrolytic cell through this adjustable electrode support. This allows the operator to adaptively adjust the installation height of the aluminum electrodes according to the specific liquid level in the electrolytic cell during the subsequent use of the domestic sewage treatment device. The adjustment is convenient and easy for the operator to quickly adjust by hand on site. At the same time, if the aluminum electrodes are damaged in the later stage, they can be quickly removed from the device for inspection and maintenance, which improves the flexibility of use and the convenience of maintenance of the entire domestic sewage treatment device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0018] Figure 3 This utility model Figure 2 A magnified view of a portion of region B in the middle;

[0019] In the diagram: 1. Main body; 11. Equalization tank; 12. Anoxic tank; 13. Electrolysis tank; 14. Aerobic tank; 15. MBR tank; 2. Discharge pump; 3. Air pump; 31. Aeration pipe; 4. Electrolysis power supply; 41. Aluminum electrode; 51. Support column; 511. Slot; 52. Horizontal column; 521. Horizontal slide groove; 522. Horizontal slider; 523. Side locking rod; 524. Bottom slide rod; 525. Bottom slide groove; 526. L-shaped bottom slider; 527. Perforation; 528. Side groove; 529. Spring; 530. Semi-circular side locking block; 53. Support sleeve; 54. Support rod; 55. Base plate; 56. Movable plate; 561. Limiting stop bar; 562. Side locking groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1 to 3 This is an embodiment of the present utility model, which provides a technical solution: a domestic sewage treatment device, including...

[0023] Main body 1, including an equalization tank 11, an anoxic tank 12, an electrolysis tank 13, an aerobic tank 14, and an MBR tank 15 located inside the main body 1, a discharge pump 2 installed on the right side of the main body 1, an electrolysis power supply 4 located above the electrolysis tank 13, and two aluminum electrodes 41 inserted into the inside of the electrolysis tank 13. Overflow holes are provided between the equalization tank 11 and the anoxic tank 12, between the anoxic tank 12 and the electrolysis tank 13, between the electrolysis tank 13 and the aerobic tank 14, and between the aerobic tank 14 and the MBR tank 15. This allows wastewater entering the equalization tank 11 to overflow sequentially through the anoxic tank 12, the electrolysis tank 13, the aerobic tank 14, and the MBR tank 15, and finally be discharged by the discharge pump 2. The organic matter in the wastewater undergoes anaerobic digestion and is then discharged. Aerobic and aerobic decomposition, ammonia nitrogen after aerobic nitrification is returned to the anoxic tank 12 for denitrification via a return pump. Then, the two aluminum electrodes 41 in the electrolysis tank 13 are connected to the electrolysis power supply 4 to release aluminum ions in the water, so that the phosphorus removal needs are met without affecting the subsequent aerobic microbial environment. The sludge intercepted in the MBR tank 15 is returned to the anoxic tank 12 via a return pump for further degradation to reduce sludge discharge. This device adopts electrochemical phosphorus removal coupled with biochemical method to degrade organic matter and remove nitrogen in domestic sewage, effectively avoiding competition between biochemical nitrogen removal and phosphorus removal, giving full play to the technical advantages of each to fully remove nitrogen, and can maintain good nitrogen and phosphorus removal efficiency at an influent water temperature of 10℃ to 15℃.

[0024] The adjustable electrode support set on the top of the electrolytic cell 13 includes two support columns 51 symmetrically welded and fixed to the top of the main body 1, a horizontal column 52 slidably installed between the two support columns 51, a support rod 54 welded and fixed to the bottom surface of the horizontal column 52, and a base plate 55 welded and fixed to the bottom surface of the support rod 54. Both aluminum electrodes 41 are installed on the bottom surface of the base plate 55. The installation height of the aluminum electrodes 41 can be adjusted by sliding the horizontal column 52 up and down, which also facilitates the removal of the aluminum electrodes 41 later. Both ends of the horizontal column 52 are welded and fixed with support sleeves 53, and the support sleeves 53 are slidably fitted on the surface of the support column 51, so that the horizontal column 52 can slide smoothly up and down between the two support columns 51.

[0025] The adjustable electrode bracket also includes transverse grooves 521 formed inside both ends of the cross column 52, a transverse slider 522 slidably installed in the transverse grooves 521, a side clamping rod 523 welded and fixed to one side surface of the transverse slider 522, multiple slots 511 formed on the surface of the support column 51, a bottom groove 525 formed on the bottom surface of the cross column 52 and communicating with the transverse grooves 521, and a bottom sliding rod 524 welded and fixed to the bottom surface of the transverse slider 522. The bottom end of the bottom sliding rod 524 passes through the bottom groove 525 to the bottom of the cross column 52 and is fixed with an L-shaped bottom slider 526. The end of the side clamping rod 523 passes through one of the slots 511, so as to realize the stable support and limit of the support sleeve 53 during daily use and ensure the installation stability of the two aluminum electrodes 41.

[0026] The adjustable electrode bracket also includes a movable plate 56 movably installed at the top center of the horizontal column 52, two limiting rods 561 welded and fixed to the bottom of the movable plate 56, and two through holes 527 opened on the surface of the horizontal column 52. The bottom end of the limiting rod 561 passes through the through holes 527 to the bottom of the horizontal column 52, and the bottom end of the limiting rod 561 is located on one side of the L-shaped bottom slider 526, which can stably block and limit the L-shaped bottom slider 526, ensuring that the side locking rod 523 can be stably locked in the slot 511 during daily use.

[0027] The adjustable electrode support also includes a side groove 528 formed on the inner wall of one side of the perforation 527, a spring 529 and a semi-circular side locking block 530 installed in the side groove 528, and two side locking slots 562 formed on the side of the limiting rod 561 corresponding to the semi-circular side locking block 530. The semi-circular side locking block 530 is movably installed in the side groove 528 by the spring 529, and the end of the semi-circular side locking block 530 pops out into one of the side locking slots 562, so as to achieve stable limiting of the limiting rod 561 during daily use. When it is necessary to adjust the position according to the electrolytic cell later... When adjusting the installation height of the aluminum electrode 41 by the height of the liquid level in the 13 compartment, simply lift the movable plate 56 forcefully first, so that the end of the semi-circular side locking block 530 is squeezed into the side groove 528, and the limiting rod 561 slides smoothly upward, no longer obstructing the L-shaped bottom slider 526. Then slide the L-shaped bottom slider 526 towards the bottom center of the horizontal column 52, so that the bottom sliding rod 524 slides sideways with the horizontal slider 522 and the side locking rod 523 until the end of the side locking rod 523 moves out of the slot 511, thus removing the support and limiting function of the support sleeve 53. Then, the horizontal column 52 can be slid up and down between the two support columns 51, thereby sliding the two aluminum electrodes 41 below up and down together to adjust the height. After adjusting to the appropriate installation height, push the L-shaped bottom slider 526 back so that the end of the side locking rod 523 can be inserted into the slot 511 in another position, which can again support and limit the support sleeve 53 and the horizontal column 52. Finally, press the movable plate 56 down forcefully so that the bottom end of the limiting stop rod 561 passes through to the bottom of the horizontal column 52 again and is located on one side of the L-shaped bottom slider 526, which can then adjust the L-shaped bottom slider 526. The side locking rod 523 provides stable blocking and limiting. At the same time, the end of the semi-circular side locking block 530 will be pushed into the side locking groove 562 by the spring 529, which can limit the limiting rod 561 itself and ensure the subsequent installation stability of the aluminum electrode 41. When the aluminum electrode 41 needs to be removed for inspection, maintenance or replacement, simply slide the support sleeve 53 from the top of the support column 51 when the end of the side locking rod 523 moves out of the slot 511, and the aluminum electrode 41 can be directly removed from the inside of the electrolytic cell 13 for inspection and maintenance.

[0028] One end of the spring 529 is fixed to the inner wall of the side groove 528, and the other end of the spring 529 is fixed to the semi-circular side block 530.

[0029] The movable plate 56 has a rectangular notch on both sides to facilitate the lifting of the movable plate 56 by the operator.

[0030] The main body 1 is equipped with an air pump 3 at its bottom. Aeration pipes 31 are installed in the anoxic tank 12, aerobic tank 14 and MBR tank 15. The aeration pipes 31 are connected to the air pump 3 through pipes to aerate and oxygenate the anoxic tank 12, aerobic tank 14 and MBR tank 15.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A domestic sewage treatment device, characterized in that: include Main body (1), conditioning tank (11), anoxic tank (12), electrolytic tank (13), aerobic tank (14) and MBR tank (15) located inside the main body (1), discharge pump (2) installed on the right side of the main body (1), electrolytic power supply (4) set above the electrolytic tank (13), and two aluminum electrodes (41) inserted into the inside of the electrolytic tank (13). And an adjustable electrode support set on top of the electrolytic cell (13), including two support columns (51) symmetrically fixed on the top of the main body (1), a horizontal column (52) slidably installed between the two support columns (51), a support rod (54) fixed on the bottom surface of the horizontal column (52), and a base plate (55) fixed on the bottom surface of the support rod (54), and both aluminum electrodes (41) are installed on the bottom surface of the base plate (55).

2. The domestic sewage treatment device according to claim 1, characterized in that: Both ends of the horizontal column (52) are fixed with support sleeves (53), and the support sleeves (53) are slidably sleeved on the surface of the support column (51).

3. A domestic sewage treatment device according to claim 2, characterized in that: The adjustable electrode support also includes a transverse groove (521) opened inside both ends of the cross column (52), a transverse slider (522) slidably installed in the transverse groove (521), a side clamp (523) fixed on one side surface of the transverse slider (522), multiple slots (511) opened on the surface of the support column (51), a bottom groove (525) opened on the bottom surface of the cross column (52) and communicating with the transverse groove (521), and a bottom slide rod (524) fixed on the bottom surface of the transverse slider (522). The bottom end of the bottom slide rod (524) passes through the bottom groove (525) to the bottom of the cross column (52) and is fixed with an L-shaped bottom slider (526). The end of the side clamp (523) passes through one of the slots (511).

4. A domestic sewage treatment device according to claim 3, characterized in that: The adjustable electrode bracket also includes a movable plate (56) movably installed at the center of the top of the cross column (52), two limiting rods (561) fixed at the bottom of the movable plate (56), and two through holes (527) opened on the surface of the cross column (52). The bottom end of the limiting rod (561) passes through the through hole (527) to the bottom of the cross column (52), and the bottom end of the limiting rod (561) is located on one side of the L-shaped bottom slider (526).

5. A domestic sewage treatment device according to claim 4, characterized in that: The adjustable electrode bracket also includes a side groove (528) on the inner wall of one side of the perforation (527), a spring (529) and a semi-circular side block (530) installed in the side groove (528), and two side slots (562) on the side of the limiting stop (561) corresponding to the semi-circular side block (530). The semi-circular side block (530) is movably installed in the side groove (528) by the spring (529), and the end of the semi-circular side block (530) pops out into one of the side slots (562).

6. A domestic sewage treatment device according to claim 5, characterized in that: One end of the spring (529) is fixed to the inner wall of the side groove (528), and the other end of the spring (529) is fixed to the semi-circular side block (530).

7. A domestic sewage treatment device according to claim 5, characterized in that: A rectangular notch is provided on both sides of the movable plate (56).

8. A domestic sewage treatment device according to claim 1, characterized in that: An air pump (3) is installed at the bottom of the main body (1). An aeration pipe (31) is installed in the anoxic pool (12), aerobic pool (14) and MBR pool (15), and the aeration pipe (31) is connected to the air pump (3) through a pipe.

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