Sewage treatment equipment

Abstract

The invention relates to the technical field of sewage treatment, and discloses sewage treatment equipment which comprises at least two sewage treatment boxes, at least one sewage treatment area is arranged in each sewage treatment box, all the sewage treatment areas in all the sewage treatment boxes are sequentially communicated in the water flow direction, a filter membrane is arranged in the last sewage treatment area, and the filter membrane is communicated with the sewage treatment box. The water body on the front side of the filter membrane flows back to the first sewage treatment area, and the water body filtered by the filter membrane is discharged to the outside; the two adjacent sewage treatment tanks are connected through the water passing assembly, the sealing performance is good, and the connection is simple and convenient; the use number of the sewage treatment tanks can be adjusted according to the actual water quantity and water quality, the use is flexible, and carbon emission is reduced on the premise of meeting the treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment. Background Art

[0002] At present, domestic sewage treatment technology has become increasingly mature, with relatively mature processes and equipment for treating domestic sewage or high-concentration wastewater. With the development of the domestic economy and society, sewage treatment in rural areas has gradually improved. Existing sewage treatment systems generally use pools opened on the ground to treat sewage. Their location is fixed and their layout cannot be adjusted at any time according to on-site conditions. In addition, the various parts of the sewage treatment system are fixed and cannot be increased or decreased according to actual conditions. However, due to the influence of many factors, the actual water volume on site of the sewage treatment system will be far less than the designed water volume, and the influent water quality will also be less than the designed value. As a result, the system cannot operate normally due to insufficient water volume and microbial nutrition. Continuous operation also causes excess energy consumption and increases carbon emissions. At the same time, the country and society have increasingly stringent requirements for energy conservation and environmental protection. How to reduce carbon emissions while meeting treatment effects has become a research and development trend in processes and equipment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a sewage treatment device that can be used flexibly by increasing or decreasing the number of sewage treatment tanks according to the water volume and water quality.

[0004] In order to solve the above technical problems, the present invention provides a sewage treatment device, comprising at least two sewage treatment tanks, each of which is provided with at least one sewage treatment area, a filter membrane being provided in the last sewage treatment area, water in front of the filter membrane being returned to the first sewage treatment area, and water filtered by the filter membrane being discharged to the outside;

[0005] Two adjacent sewage treatment tanks are connected through a water flow assembly, which includes a first water flow sleeve, a second water flow sleeve and a water flow pipe. The first water flow sleeve is arranged on one side of one of the sewage treatment tanks and is connected to a sewage treatment area of ​​the sewage treatment tank. The second water flow sleeve is arranged on one side of the other sewage treatment tank and is connected to a sewage treatment area of ​​the sewage treatment tank. The position of the second water flow sleeve corresponds to the position of the first water flow sleeve. An annular sealing gasket is matched and fixed in the second water flow sleeve. The water flow pipe is inserted in the first water flow sleeve. A sealing ring is provided between the outer side of the water flow pipe and the inner side of the first water flow sleeve. The end of the water flow pipe extends into the second water flow sleeve and the sealing gasket is abutted against each other.

[0006] As a preferred solution of the present invention, the first water sleeve and the second water sleeve are provided on all four sides of the sewage treatment tank, and the side of the sewage treatment tank is also provided with a second baffle for sealing the unused first water sleeve and the second water sleeve.

[0007] As a preferred embodiment of the present invention, the interior of the sewage treatment tank is provided with at least one detachable partition plate, and the at least one partition plate divides the interior of the sewage treatment tank into at least two sewage treatment areas. The partition plate is provided with a connecting hole connecting two adjacent sewage treatment areas, and when the connecting hole is not in use, the connecting hole is blocked with a first baffle.

[0008] As a preferred embodiment of the present invention, each of the sewage treatment tanks is divided into a first partition and a second partition by a partition plate, multiple first partitions are connected in sequence, multiple second partitions are connected in sequence, the first first partition and the last second partition are in the same sewage treatment tank, and the last first partition and the first second partition are in the same sewage treatment tank.

[0009] As a preferred solution of the present invention, the first water sleeve and the second water sleeve are provided on all four sides of the sewage treatment tank, and the side of the sewage treatment tank is also provided with a second baffle for sealing the unused first water sleeve and the second water sleeve.

[0010] As a preferred solution of the present invention, a first flange is provided at one end of the first water sleeve away from the second water sleeve, and a second flange is provided at one end of the water pipe away from the second water sleeve. The first flange and the second flange are arranged opposite to each other and connected by a connecting piece.

[0011] As a preferred solution of the present invention, an end plate is provided at one end of the second water sleeve close to the interior of the sewage treatment tank, the sealing gasket is located at the end of the end plate away from the sewage treatment tank, and a plurality of mounting studs arranged around the axis of the second water sleeve are fixed to the end of the end plate close to the sewage treatment tank.

[0012] As a preferred embodiment of the present invention, the equipment also includes a water guide component, which includes a horizontal pipe and a vertical pipe. One end of the horizontal pipe is connected to the end of the second water sleeve away from the first water sleeve, and the other end of one end of the horizontal pipe is connected to the top of the vertical pipe. The bottom end of the vertical pipe extends to the bottom of the sewage treatment tank.

[0013] As a preferred embodiment of the present invention, the equipment also includes a screen box body, which is provided with a water inlet and a water outlet, the water outlet is connected to the first sewage treatment area, and a slag retaining plate, a flow regulating device, a fine screen, a fine screen and a screen slag basket are sequentially arranged between the water inlet and the water outlet along the water flow direction, the flow regulating device includes an overflow area and a diversion area which are separated, an overflow plate is provided on the side of the overflow area close to the water inlet, the overflow area is connected to the input end of the fine screen, a gate which can be opened and closed is provided on the side of the discharge port close to the water inlet, and a discharge port is provided in the diversion area.

[0014] As a preferred solution of the present invention, the last sewage treatment area is provided with a detachable membrane mounting frame, and the filter membrane is mounted on the membrane mounting frame.

[0015] As a preferred solution of the present invention, the top cover of the sewage treatment tank is provided with a cover plate, and the cover plate is provided with an odor collection hole connected to the interior of the sewage treatment tank.

[0016] The embodiment of the present invention provides a sewage treatment device, which has the following beneficial effects compared with the prior art: the present invention realizes sewage treatment under the action of multiple sewage treatment areas and filter membranes; two adjacent sewage treatment tanks are connected by a water flow assembly, which has good sealing and simple connection, and can adjust the number of sewage treatment tanks in use according to the actual water volume and water quality, and is flexible to use, thereby reducing carbon emissions while meeting the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing the connection structure of two sewage treatment tanks of the present invention;

[0018] Figure 2 yes Figure 1 sectional view of

[0019] Figure 3 yes Figure 2 A local enlarged view of point A;

[0020] Figure 4 This is a schematic diagram of an arrangement structure of multiple sewage treatment tanks of the present invention;

[0021] Figure 5 This is a schematic diagram of an arrangement structure of multiple sewage treatment tanks of the present invention;

[0022] Figure 6 This is a schematic diagram of an arrangement structure of multiple sewage treatment tanks of the present invention;

[0023] Figure 7 It is a structural diagram of the grille box of the present invention;

[0024] Figure 8It is a structural diagram of the sewage treatment tank of the present invention;

[0025] Figure 9 yes Figure 8 Rear view;

[0026] Figure 10 is a structural diagram of the membrane mounting frame of the present invention;

[0027] In the figure, 1. Sewage treatment tank; 101. First sewage treatment tank; 102. Second sewage treatment tank; 103. Third sewage treatment tank; 104. Fourth sewage treatment tank; 11. Sewage treatment area; 111. First partition; 112. Second partition; 113. Filter membrane; 12. Cover plate; 121. Odor collection hole; 13. Fence mounting base; 14. Universal swivel ring; 15. Mounting seat; 16. Anti-fall net mounting hole; 17. Pipeline interface; 18. Drain port; 19. Ladder.

[0028] 2. Water flow assembly; 21. First water flow sleeve; 211. First flange; 22. Second water flow sleeve; 221. End plate; 222. Mounting studs; 23. Water flow pipe; 231. Second flange; 24. Sealing ring; 25. Sealing gasket; 26. Second baffle;

[0029] 3. Separator plate; 31. Connecting hole; 32. First baffle plate;

[0030] 4. Water guide assembly; 41. Horizontal pipe; 42. Vertical pipe;

[0031] 5. Screen box; 51. Water inlet; 52. Slag retaining plate; 53. Flow regulating device; 531. Overflow area; 5311. Overflow plate; 532. Diversion area; 5321. Gate; 5322. Diversion port; 54. Fine screen; 55. Fine screen; 56. Screen slag basket;

[0032] 6. Membrane mounting frame. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. used in the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. These terms are used only to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] like Figure 1-10 As shown, a sewage treatment device according to a preferred embodiment of the present invention includes at least two sewage treatment tanks 1, each of which is provided with at least one sewage treatment zone 11. The sewage treatment zones 11 in all the sewage treatment tanks 1 are sequentially connected along the direction of water flow. It should be noted that the sewage treatment zones can be set as anaerobic zones, anoxic zones and aerobic zones according to process requirements. For example, in an AO process, multiple anoxic zones and multiple aerobic zones can be sequentially set in each sewage treatment zone 11 along the direction of water flow. A filter membrane 113 (such as an MRB membrane, i.e., a membrane bioreactor) is provided in the last sewage treatment zone 11. The water in front of the filter membrane can flow back to the first sewage treatment zone, and the water filtered by the filter membrane can be discharged to the outside.

[0036] Two adjacent sewage treatment tanks 1 are connected by a water flow assembly 2, that is, two sewage treatment areas 11 respectively arranged in the two sewage treatment tanks 1 and adjacent to each other along the water flow direction are connected by a water flow assembly 2. The water flow assembly 2 includes a first water flow sleeve 21, a second water flow sleeve 22 and a water flow pipe 23. The first water flow sleeve 21 is arranged on one side of one of the sewage treatment tanks 1 and is connected to a sewage treatment area 11 of the sewage treatment tank 1. The second water flow sleeve 22 is arranged on one side of the other sewage treatment tank 1 and is connected to a sewage treatment area 11 of the sewage treatment tank 1. The position of the second water flow sleeve 22 corresponds to the position of the first water flow sleeve 21. The second water flow sleeve 22 is connected to the sewage treatment area 11 of the sewage treatment tank 1. An annular sealing gasket 25 is matched and fixed in the water sleeve, and the water pipe 23 is inserted in the first water sleeve. A sealing ring 24 is provided between the outer side of the water pipe 23 and the inner side of the first water sleeve. The end of the water pipe 23 extends into the second water sleeve 22 and is abutted against the sealing gasket 25. Generally, the first water sleeve 21 and the second water sleeve 22 are respectively arranged on the inner side of the sewage treatment tank 1, which helps to closely connect the two sewage treatment tanks 1, thereby helping to reduce space occupancy. The diameter of the second water sleeve is larger than that of the first water sleeve, so that problems such as hole misalignment and manufacturing errors caused when the two sewage treatment tanks 1 are connected can be solved.

[0037] The working principle of this embodiment is as follows: under the action of multiple sewage treatment zones 11 and filter membranes 113 of this sewage treatment equipment, sewage treatment can be achieved; with the AO process, multiple anoxic zones and multiple aerobic zones are sequentially arranged in each sewage treatment zone 11 along the direction of water flow, the sewage first enters the first anoxic zone, and then flows through multiple anoxic zones in sequence to remove some organic matter, and then flows through multiple aerobic zones in sequence to achieve organic matter degradation and ammonia nitrogen nitrification, and finally a part of the water body in front of the filter membrane 113 is returned to the first anoxic zone through a reflux pump to achieve circulation, and total nitrogen is removed through denitrification, and the other part is discharged after being filtered by the filter membrane 113 (clear water that has reached the discharge standard), thereby achieving sewage treatment, and the system water production can stably meet the standards; the two adjacent sewage treatment The boxes 1 are connected through a water flow assembly 2. The first water flow sleeve and the second water flow sleeve in the water flow assembly 2 are respectively arranged on the sides of the two sewage treatment boxes 1. The connection between the two sewage treatment boxes 1 can be achieved by simply inserting the water flow pipe 23 into the first water flow sleeve and the second water flow sleeve. A sealing ring 24 is provided between the outer side of the water flow pipe 23 and the inner side of the first water flow sleeve to ensure the sealing between the water flow pipe 23 and the first water flow sleeve. The end of the water flow pipe 23 is abutted against the sealing end in the second water flow sleeve to ensure the sealing between the water flow pipe 23 and the second water flow sleeve. The sealing is good and the connection is simple. It can be produced and used in a modular manner. The number of sewage treatment boxes 1 used can be adjusted according to the actual water volume and water quality. It is flexible to use, thereby reducing carbon emissions while meeting the treatment effect.

[0038] For example, the interior of the sewage treatment tank 1 is provided with at least one detachable partition plate 3, which divides the interior of the sewage treatment tank 1 into at least two sewage treatment areas 11. The partition plate 3 can be set in various shapes, such as a straight line, an L shape, a cross shape, etc. Figure 5 and 6 As shown, the partition plate 3 is in a straight line or L-shape, and can be disassembled and assembled according to the shape and number of the required sewage treatment areas 11. Generally, an installation position (such as a slot) for installing the partition plate 3 is preset in the sewage treatment area 11, which can facilitate the disassembly and installation of the partition plate. The partition plate 3 is provided with a connecting hole 31 connecting two adjacent sewage treatment areas 11 (in the same sewage treatment tank 1). When the connecting hole 31 is not in use, the connecting hole 31 is blocked with a first baffle 32. That is, after the first baffle 32 is removed, the two sewage treatment areas 11 adjacent to the corresponding partition plate 3 can be connected through the connecting hole 31 on the partition plate 3, so that it can be used according to actual needs.

[0039] Exemplarily, each sewage treatment tank 1 is divided into a first partition 111 and a second partition 112 by a partition plate 3. The first partition 111 and the second partition 112 are set with corresponding treatment areas (anaerobic area, anoxic area and aerobic area) according to the process requirements. Multiple first partitions 111 are connected in sequence along the water flow direction, and multiple second partitions 112 are connected in sequence along the water flow direction. The first first partition 111 and the last second partition 112 are in the same sewage treatment tank 1, and the last first partition 111 and the first second partition 112 are in the same sewage treatment tank 1, which can help the water in front of the filter membrane in the last sewage treatment area to flow back to the first sewage treatment area. At the same time, when the number of sewage treatment tanks 1 used is adjusted, the position of the last sewage treatment area can remain unchanged, that is, there is no need to disassemble and assemble the filter membrane 113, which is convenient for adjustment.

[0040] Specifically, if Figure 4As shown, in one embodiment of the present invention, the device includes four first sewage treatment tanks 101, second sewage treatment tanks 102, third sewage treatment tanks 103 and fourth sewage treatment tanks 104 arranged in sequence along a straight line. Each sewage treatment tank 1 is divided into a first partition 111 and a second partition 112 by a partition plate 3 (that is, each sewage treatment tank 1 is provided with two sewage treatment areas 11). The first partition 111 of the first sewage treatment tank 101, the first partition 111 of the second sewage treatment tank 102, the first partition 111 of the third sewage treatment tank 103 and the first partition 111 of the fourth sewage treatment tank 104 are connected in sequence through the water flow assembly 2. The first partition 111 of the fourth sewage treatment tank 104 is connected through the connecting hole on the partition plate 3. 31 is connected to the second partition 112 of the fourth sewage treatment tank 104, and the second partition 112 of the fourth sewage treatment tank 104, the second partition 112 of the third sewage treatment tank 103, the second partition 112 of the second sewage treatment tank 102 and the second partition 112 of the first sewage treatment tank 101 are connected in sequence through the water flow component 2. A filter membrane 113 is provided in the second partition 112 of the first sewage treatment tank 101. In this embodiment, the first partitions 111 are all anoxic zones, and the second partitions 112 are all aerobic zones. When working, the sewage first enters the first partition 111 of the first sewage treatment tank 101, and then flows through the first partition 111 of the second sewage treatment tank 102, the first partition 111 of the third sewage treatment tank 103, the fourth sewage treatment tank 101 and the second partition 111 of the third sewage treatment tank 103. The first partition 111 of the treatment tank 104, the second partition 112 of the fourth sewage treatment tank 104, the second partition 112 of the third sewage treatment tank 103, and the second partition 112 of the second sewage treatment tank 102 enter the second partition 112 of the first sewage treatment tank 101. A part of the water in front of the filter membrane 113 is returned to the first partition 111 of the first sewage treatment tank 101 through the reflux pump (the partition plate 3 in the first sewage treatment tank 101 can be provided with a reflux hole for reflux), and the other part is filtered by the filter membrane 113 and discharged to the outside. When the actual water volume is far less than the designed water volume, the use of the sewage treatment tank 1 can be temporarily reduced (that is, the running parts can be reduced). Specifically, the third sewage treatment tank 103 and the fourth sewage treatment tank 104 are firstly used to filter the water. The water pipe 23 of the water flow assembly 2 between the tanks 104 is blocked, and then the first baffle 32 on the partition plate 3 in the third sewage treatment tank 103 is removed, so that the first partition 111 and the second partition 112 in the third sewage treatment tank 103 are connected through the communication hole 31 on the partition plate 3. At this time, the fourth sewage treatment tank 104 can be deactivated. When it is needed, it only needs to be restored to its original state. If the fourth sewage treatment tank 104 needs to be deactivated for a long time in actual circumstances, the water pipe 23 of the water flow assembly 2 between the third sewage treatment tank 103 and the fourth sewage treatment tank 104 can be removed, and then the fourth sewage treatment tank 104 can be lifted away. In addition, the analogous operation can also be used to deactivate the third sewage treatment tank 103 and the second sewage treatment tank 102.That is, the device can adjust the number of sewage treatment tanks 1 used according to the actual water volume and water quality, and is flexible in use, thereby reducing carbon emissions while meeting the treatment effect.

[0041] Exemplarily, the four sides of the sewage treatment tank 1 are provided with a first water pass sleeve 21 and a second water pass sleeve 22, and the side of the sewage treatment tank 1 is further provided with a second baffle 26 for blocking the unused first water pass sleeve 21 and the second water pass sleeve 22, that is, the four sides of a sewage treatment tank 1 can be connected to another sewage treatment tank 1 through the water pass assembly 2. Generally, on one side of a sewage treatment tank 1, the axis of the first water pass sleeve 21 and the axis of the second water pass sleeve 22 are symmetrically arranged, and on the opposite sides of a sewage treatment tank 1, the first water pass sleeve 21 on one side and the second water pass sleeve 22 on the other side are arranged opposite to each other, so that the two sewage treatment tanks 1 can be connected, thereby being able to flexibly adjust the relative positions of the two sewage treatment tanks 1, making the arrangement of the device flexible and changeable, for example, Figure 5 The arrangement of the multiple sewage treatment tanks 1 of the present device can be adjusted to Figure 6 The arrangement shown can adapt to the use requirements of different venues.

[0042] Exemplarily, a first flange 211 is provided at one end of the first water sleeve 21 away from the second water sleeve 22, and a second flange 231 is provided at one end of the water pipe 23 away from the second water sleeve 22. The first flange 211 and the second flange 231 are arranged opposite to each other and connected by a connecting member (such as a bolt). After the water pipe 23 is inserted into the first water sleeve 21, the first flange 211 and the second flange 231 are connected by the connecting member, which can fix the water pipe 23 and at the same time keep the end of the water pipe 23 against the sealing gasket 25 to ensure sealing.

[0043] Exemplarily, an end plate 221 is provided at one end of the second water sleeve close to the interior of the sewage treatment tank 1 (the sewage treatment tank 1 where the second water sleeve is located). The end plate 221 is annular to ensure that the second water sleeve is connected to the sewage treatment area 11. The sealing gasket 25 is located at the end of the end plate 221 away from the sewage treatment tank 1. When the end of the water pipe 23 abuts against the sealing gasket 25, the end plate 221 can play a limiting role, which helps to fix the sealing gasket 25 in the second water sleeve. A plurality of mounting studs 222 arranged around the axis of the second water sleeve are fixed at the end of the end plate 221 close to the sewage treatment tank 1, which facilitates the subsequent installation of the second baffle 26 or the water guide component 4.

[0044] Exemplarily, the present device also includes a water guide component 4, which includes a horizontal pipe 41 and a vertical pipe 42. One end of the horizontal pipe 41 is connected to one end of the second water sleeve 22 away from the first water sleeve 21, and the other end of the horizontal pipe 41 is connected to the top of the vertical pipe 42. The bottom end of the vertical pipe 42 extends to the bottom of the sewage treatment tank 1. Generally, when the sewage treatment area 11 is an anoxic area, the second water sleeve 22 of the sewage treatment area 11 is connected to the water guide component 4. The water guide component 4 helps the sewage to enter the bottom of the anoxic area, thereby helping the microorganisms in the sludge at the bottom of the anoxic area to contact with the organic matter in the sewage to decompose these organic matter. As needed, the water guide component 4 can also be installed at the connecting hole 31 of the partition plate 3.

[0045] Exemplarily, the present device further comprises a screen box 5, in which a water inlet 51 and a water outlet (not shown in the figure) are provided, the water outlet is communicated with the first sewage treatment area 11 (arranged along the direction of water flow), and a slag retaining plate 52, a flow regulating device 53, a fine screen 54, a fine screen 55 and a screen slag basket 56 are sequentially arranged between the water inlet 51 and the water outlet along the direction of water flow, the flow regulating device 53 comprises an overflow area 531 and a diversion area 532 which are separated and arranged, an overflow plate 5311 is provided on the side of the overflow area 531 close to the water inlet 51, the overflow area 531 is communicated with the input end of the fine screen 54, a gate plate 5321 which can be opened and closed is provided on the side of the diversion port 5322 close to the water inlet 51, a diversion port 5322 is provided in the diversion area 532, when the gate plate 5321 When closed, the sewage entering the screen box 5 will all overflow to the output end of the fine screen 54 through the overflow plate 5311 after passing through the slag retaining plate 52, and will be transported to the first sewage treatment area 11 after passing through the fine screen 54, the fine screen 55 and the screen residue basket 56 in turn. When the gate is opened, part of the sewage after passing through the slag retaining plate 52 will enter the diversion area 532, and then be transported back to the container for storing sewage from the diversion area 532. That is, by adjusting the opening of the gate plate 5321, the flow rate of sewage overflowing through the overflow plate 5311 to the overflow area 531 can be adjusted, that is, the water inlet volume of the first sewage treatment area 11 can be adjusted. The setting of the screen box 5 can intercept fine suspended matter and fibers in the sewage and adjust the water inlet flow rate to prevent fibers from entering the equipment and causing damage to the filter membrane 113.

[0046] Illustratively, a detachable membrane mounting frame 6 is provided in the last sewage treatment area 11 arranged along the direction of water flow, and a filter membrane 113 is mounted on the membrane mounting frame 6. The filter membrane 113 is mounted in the sewage treatment area 11 through the membrane mounting frame 6, which facilitates the disassembly and assembly of the filter membrane 113. When the number of sewage treatment areas 11 is increased or decreased so that the position of the last sewage treatment area 11 changes, the membrane mounting frame 6 and the filter membrane 113 can be quickly removed from the original sewage treatment area 11 and quickly installed in the subsequent sewage treatment area 11 (the last sewage treatment area 11) to meet the needs of flexible use of this equipment.

[0047] For example, Figure 1 and 8 As shown ( Figure 8 Only part of the cover 12 is shown in the figure. The top cover of the sewage treatment tank 1 is provided with a cover 12. The cover 12 is provided with an odor collection hole 121 connected to the interior of the sewage treatment tank 1. The gas in the sewage treatment tank 1 is concentrated and discharged from the odor collection hole 121 to the outside of the sewage treatment barrel, which is convenient for collecting irritating odors and harmful gases and preventing odors from being emitted at will and affecting the environment; a fence mounting base 13 is reserved on the top of the sewage treatment tank 1 to facilitate the subsequent installation of a fence according to needs; the top and bottom of the sewage treatment tank 1 are equipped with a universal rotating lifting ring 14, and the sewage treatment tank 1 can be hoisted horizontally and vertically. The bottom of the sewage treatment tank 1 is also provided with a mounting base 1 that can also be used for fixing equipment 5, thereby preventing tipping; the top of the sewage treatment tank 1 is pre-installed with an anti-fall net installation hole 16, which is convenient for the subsequent installation of an anti-fall net as needed to improve the safety factor; the lower part of the sewage treatment tank 1 is provided with a plurality of pipe interfaces 17 for connecting pipes, which is convenient for taking over, the pipes are centralized, and the overall equipment is beautiful; the bottom of each sewage treatment area 11 in the sewage treatment tank 1 is provided with an emptying port 18, which is convenient for emptying the equipment during water testing and maintenance; each sewage treatment area 11 in the sewage treatment tank 1 is provided with a ladder 19 handrail to facilitate personnel going up and down; this equipment is equipped with a ladder 19, which is of two types: corner type and straight type, which can be set up according to needs, which is conducive to subsequent operation and maintenance.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sewage treatment equipment, characterized in that: It comprises at least two sewage treatment tanks, each of which is provided with at least one sewage treatment area, and each of the sewage treatment areas in all the sewage treatment tanks is sequentially connected along the water flow direction, and a filter membrane is provided in the last sewage treatment area, and the water in front of the filter membrane flows back to the first sewage treatment area, and the water filtered by the filter membrane is discharged to the outside; Two adjacent sewage treatment tanks are connected by a water flow assembly, which includes a first water flow sleeve, a second water flow sleeve and a water flow pipe. The first water flow sleeve is arranged on one side of one of the sewage treatment tanks and is connected to a sewage treatment area of ​​the sewage treatment tank. The second water flow sleeve is arranged on one side of the other sewage treatment tank and is connected to a sewage treatment area of ​​the sewage treatment tank. The position of the second water flow sleeve corresponds to the position of the first water flow sleeve. An annular sealing gasket is matched and fixed in the second water flow sleeve. The water flow pipe is inserted in the first water flow sleeve. A sealing ring is arranged between the outer side of the water flow pipe and the inner side of the first water flow sleeve. The end of the water flow pipe extends into the second water flow sleeve and the sealing gasket abuts against each other.

2. The sewage treatment equipment according to claim 1, characterized in that: The interior of the sewage treatment tank is provided with at least one detachable partition plate, and the at least one partition plate divides the interior of the sewage treatment tank into at least two sewage treatment areas. The partition plate is provided with a connecting hole connecting two adjacent sewage treatment areas. When the connecting hole is not in use, the connecting hole is blocked with a first baffle.

3. The sewage treatment equipment according to claim 2, characterized in that: Each of the sewage treatment tanks is divided into a first partition and a second partition by a partition plate, multiple first partitions are connected in sequence along the water flow direction, multiple second partitions are connected in sequence along the water flow direction, the first first partition and the last second partition are in the same sewage treatment tank, and the last first partition and the first second partition are in the same sewage treatment tank.

4. The sewage treatment equipment according to claim 1, characterized in that: The first water passing sleeve and the second water passing sleeve are disposed on four sides of the sewage treatment tank, and a second baffle for blocking the first water passing sleeve and the second water passing sleeve which are not in use is also disposed on the side of the sewage treatment tank.

5. The sewage treatment equipment according to claim 1, characterized in that: A first flange is provided at one end of the first water sleeve away from the second water sleeve, a second flange is provided at one end of the water pipe away from the second water sleeve, and the first flange and the second flange are arranged opposite to each other and connected by a connecting piece.

6. The sewage treatment equipment according to claim 1, characterized in that: An end plate is provided at one end of the second water-passing sleeve close to the interior of the sewage treatment tank, the sealing gasket is located at the end of the end plate away from the sewage treatment tank, and a plurality of mounting studs arranged around the axis of the second water-passing sleeve are fixed to one end of the end plate close to the sewage treatment tank.

7. The sewage treatment equipment according to claim 1, characterized in that: It also includes a water guide component, which includes a horizontal pipe and a vertical pipe. One end of the horizontal pipe is connected to an end of the second water sleeve away from the first water sleeve, and the other end of the one end of the horizontal pipe is connected to the top end of the vertical pipe. The bottom end of the vertical pipe extends to the bottom of the sewage treatment tank.

8. The sewage treatment equipment according to claim 1, characterized in that: It also includes a grid box body, which is provided with a water inlet and a water outlet, the water outlet is connected to the first sewage treatment area, and a slag retaining plate, a flow regulating device, a fine grid, a fine grid and a slag basket are sequentially arranged between the water inlet and the water outlet along the water flow direction, the flow regulating device includes an overflow area and a diversion area which are separated and arranged, an overflow plate is provided on the side of the overflow area close to the water inlet, the overflow area is connected to the input end of the fine grid, a gate which can be opened and closed is provided on the side of the discharge port close to the water inlet, and a discharge port is provided in the diversion area.

9. The sewage treatment equipment according to claim 1, characterized in that: The last sewage treatment area is provided with a detachable membrane mounting frame, and the filter membrane is mounted on the membrane mounting frame.

10. The sewage treatment equipment according to claim 1, characterized in that: The top cover of the sewage treatment tank is provided with a cover plate, and the cover plate is provided with an odor collecting hole communicated with the interior of the sewage treatment tank.

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