A sewage treatment apparatus

Abstract

The present application relates to sewage treatment technical field, disclose a kind of sewage treatment equipment, including at least two sewage treatment tanks, at least one sewage treatment zone is equipped in the sewage treatment tank, each sewage treatment zone in all sewage treatment tanks is sequentially communicated along water flow direction, filter membrane is equipped in last sewage treatment zone, water body of the front side of filter membrane is backflow to first sewage treatment zone, and water body after filtering by filter membrane is discharged to outside;Two sewage treatment tanks are connected by water passing component, and good sealing and simple connection;The present application can adjust the use quantity of sewage treatment tank according to actual water quantity and water quality, and flexible is used, to reduce carbon emission under the premise of meeting treatment effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, in particular to a sewage treatment equipment. BACKGROUND

[0002] At present, domestic sewage treatment technology has become increasingly mature, and there are relatively mature processes and equipment for treating domestic sewage or high-concentration wastewater. With the development of domestic economy and society, township sewage treatment is gradually improved. The existing sewage treatment system generally uses a pool body opened on the ground to treat sewage, and the position is fixed and cannot be adjusted at any time according to the site conditions. Moreover, the parts of the sewage treatment system are fixed and cannot be increased or reduced according to the actual situation. However, under the influence of many factors, the actual water quantity of the sewage treatment system is far less than the designed water quantity, and the influent water quality is less than the designed value, which makes it difficult for the system to operate normally due to insufficient water quantity and microorganism nutrients. In the case of continuous operation, it also causes excessive energy consumption and increases carbon emissions. At the same time, the requirements for energy saving and environmental protection are becoming more and more stringent, and how to reduce carbon emissions under the premise of meeting the treatment effect has become the research and development trend of the process and equipment. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a sewage treatment equipment which can increase or reduce the number of sewage treatment boxes according to the water quantity and water quality, and is flexible to use.

[0004] In order to solve the above technical problems, the present application provides a sewage treatment equipment, which comprises at least two sewage treatment boxes, at least one sewage treatment area is arranged in each sewage treatment box, a filter membrane is arranged in the last sewage treatment area, the water body in front of the filter membrane is returned to the first sewage treatment area, and the water body filtered by the filter membrane is discharged to the outside;

[0005] Two adjacent sewage treatment boxes are connected through a water passing assembly, the water passing assembly comprises a first water passing sleeve, a second water passing sleeve and a water passing pipe, the first water passing sleeve is arranged on one side of one of the sewage treatment boxes and communicates with one of the sewage treatment areas of the sewage treatment box, the second water passing sleeve is arranged on one side of the other sewage treatment box and communicates with one of the sewage treatment areas of the sewage treatment box, the position of the second water passing sleeve corresponds to the position of the first water passing sleeve, a ring-shaped sealing gasket is fixedly matched in the second water passing sleeve, the water passing pipe is inserted into the first water passing sleeve, a sealing ring is arranged between the outer side of the water passing pipe and the inner side of the first water passing sleeve, and the end of the water passing pipe extends into the second water passing sleeve and abuts against the sealing gasket.

[0006] As a preferred scheme of the present application, the sewage treatment tank is provided with the first water passing sleeve and the second water passing sleeve on each side thereof, and the sewage treatment tank is further provided with a second baffle for blocking the unused first water passing sleeve and the second water passing sleeve.

[0007] As a preferred scheme of the present application, the sewage treatment tank is provided with at least one detachable partition plate, which divides the interior of the sewage treatment tank into at least two sewage treatment zones, and the partition plate is provided with a communication hole for communicating the adjacent two sewage treatment zones, and the communication hole is blocked by a first baffle when the communication hole is not used.

[0008] As a preferred scheme of the present application, each sewage treatment tank is divided into a first sub-zone and a second sub-zone by a partition plate, the first sub-zones are communicated in sequence, the second sub-zones are communicated in sequence, the first first sub-zone and the last second sub-zone are located in the same sewage treatment tank, and the last first sub-zone and the first second sub-zone are located in the same sewage treatment tank.

[0009] As a preferred scheme of the present application, the sewage treatment tank is provided with the first water passing sleeve and the second water passing sleeve on each side thereof, and the sewage treatment tank is further provided with a second baffle for blocking the unused first water passing sleeve and the second water passing sleeve.

[0010] As a preferred scheme of the present application, the first water passing sleeve is provided with a first flange at an end thereof away from the second water passing sleeve, the water passing pipe is provided with a second flange at an end thereof away from the second water passing sleeve, and the first flange and the second flange are oppositely arranged and connected by a connecting piece.

[0011] As a preferred scheme of the present application, the second water passing sleeve is provided with an end plate at an end thereof close to the interior of the sewage treatment tank, the sealing gasket is located at an 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 an end of the end plate close to the sewage treatment tank.

[0012] As a preferred scheme of the present application, the device further comprises a water guiding assembly, which comprises a horizontal pipe and a vertical pipe, one end of the horizontal pipe is connected to an end of the second water passing sleeve away from the first water passing sleeve, the other end of the horizontal pipe is connected to the top end of the vertical pipe, and the bottom end of the vertical pipe extends to the bottom of the sewage treatment tank.

[0013] As a preferred scheme of the present application, the device further comprises a grid box, a water inlet and a water outlet are arranged in the grid box, the water outlet is communicated with the first sewage treatment area, a slag baffle, a flow regulating device, a fine grid, a fine grid and a grid slag basket are sequentially arranged between the water inlet and the water outlet along the water flow direction, the flow regulating device comprises an overflow area and a shunt area arranged separately, the overflow area is provided with an overflow plate on the side close to the water inlet, the overflow area is communicated with the input end of the fine grid, the shunt area is provided with a gate plate capable of being opened and closed on the side close to the water inlet, and the shunt area is provided with a shunt port.

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

[0015] As a preferred scheme of the present application, the top cover of the sewage treatment box is provided with a cover plate, and the cover plate is provided with a foul gas collecting hole communicated with the inside of the sewage treatment box.

[0016] Compared with the prior art, the sewage treatment device has the beneficial effects that: the sewage treatment device realizes the treatment of sewage under the action of multiple sewage treatment areas and filter membranes; two adjacent sewage treatment boxes are connected through the water passing assembly, the connection is good in sealing property and simple in connection, the use number of the sewage treatment boxes can be adjusted according to the actual water quantity and water quality, the use is flexible, and thus the carbon emission is reduced under the premise of meeting the treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a connection structure diagram of two sewage treatment boxes of the present application;

[0018] Figure 2 is Figure 1 a sectional view;

[0019] Figure 3 is Figure 2 an enlarged view of a part A of

[0020] Figure 4 is a schematic diagram of an arrangement structure of multiple sewage treatment boxes of the present application;

[0021] Figure 5 is a schematic diagram of an arrangement structure of multiple sewage treatment boxes of the present application;

[0022] Figure 6 is a schematic diagram of an arrangement structure of multiple sewage treatment boxes of the present application;

[0023] Figure 7 is a structure diagram of a grid box of the present application;

[0024] Figure 8is a structural view of a sewage treatment tank of the present application;

[0025] Figure 9 is Figure 8 a rear view;

[0026] Figure 10 is a structural view of a membrane mounting rack of the present application;

[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 subarea; 112, second subarea; 113, filter membrane; 12, cover plate; 121, odor collection hole; 13, fence mounting base; 14, universal rotation lifting ring; 15, mounting seat; 16, anti-falling net mounting hole; 17, pipeline interface; 18, emptying port; 19, ladder;

[0028] 2, water passing assembly; 21, first water passing sleeve; 211, first flange; 22, second water passing sleeve; 221, end plate; 222, mounting stud; 23, water passing pipe; 231, second flange; 24, sealing ring; 25, sealing gasket; 26, second baffle;

[0029] 3, partition plate; 31, communication hole; 32, first baffle;

[0030] 4, water guiding assembly; 41, horizontal pipe; 42, vertical pipe;

[0031] 5, grid tank body; 51, water inlet; 52, slag baffle; 53, flow regulating device; 531, overflow area; 5311, overflow plate; 532, shunt area; 5321, gate plate; 5322, shunt port; 54, fine grid; 55, fine grid; 56, grid slag basket;

[0032] 6, membrane mounting rack. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0034] In the description of the present application, it should be understood that the present application adopts the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] As Figures 1-10 shown, the sewage treatment equipment of the preferred embodiment of the present application comprises at least two sewage treatment tanks 1, at least one sewage treatment zone 11 is arranged in each sewage treatment tank 1, and each sewage treatment zone 11 in all sewage treatment tanks 1 is sequentially communicated along the water flow direction. It should be noted that the sewage treatment zone can be set as an anaerobic zone, an anoxic zone and an aerobic zone according to the process requirements, for example, the AO process, a plurality of anoxic zones and a plurality of aerobic zones can be sequentially arranged along the water flow direction in each sewage treatment zone 11, and a filter membrane 113 (for example, an MRB membrane, i.e., a membrane bioreactor) is arranged in the last sewage treatment zone 11. The water body in front of the filter membrane can flow back to the first sewage treatment zone, and the water body filtered by the filter membrane can be discharged to the outside;

[0036] Two adjacent sewage treatment tanks 1 are connected by a water passing assembly 2, that is, two adjacent sewage treatment zones 11 arranged in two sewage treatment tanks 1 along the water flow direction are connected by the water passing assembly 2. The water passing assembly 2 comprises a first water passing sleeve 21, a second water passing sleeve 22 and a water passing pipe 23. The first water passing sleeve 21 is arranged on one side of one of the sewage treatment tanks 1 and is in communication with one of the sewage treatment zones 11 of the sewage treatment tank 1. The second water passing sleeve 22 is arranged on one side of the other sewage treatment tank 1 and is in communication with one of the sewage treatment zones 11 of the sewage treatment tank 1. The position of the second water passing sleeve 22 corresponds to the position of the first water passing sleeve 21. An annular sealing gasket 25 is fixedly arranged in the second water passing sleeve. The water passing pipe 23 is inserted into the first water passing sleeve. A sealing ring 24 is arranged between the outer side of the water passing pipe 23 and the inner side of the first water passing sleeve. The end of the water passing pipe 23 extends into the second water passing sleeve 22 and abuts against the sealing gasket 25. Generally, the first water passing sleeve 21 and the second water passing sleeve 22 are arranged on the inner side of the sewage treatment tank 1, which helps to tightly connect the two sewage treatment tanks 1, thereby reducing the occupation of space. The pipe diameter of the second water passing sleeve is greater than that of the first water passing sleeve, so that the problems of hole position dislocation and manufacturing errors of the two sewage treatment tanks 1 when connected can be solved.

[0037] The working principle of the embodiment is that: under the action of the plurality of sewage treatment zones 11 and the filter membrane 113 of the sewage treatment equipment, the sewage can be treated; according to the AO process, a plurality of anoxic zones and a plurality of aerobic zones are sequentially arranged along the water flow direction in each sewage treatment zone 11, the sewage first enters the first anoxic zone, then flows through the plurality of anoxic zones to remove part of the organic matter, then flows through the plurality of aerobic zones to realize organic matter degradation and ammonia nitrogen nitrification, and finally part of the water body before the filter membrane 113 is returned to the first anoxic zone by the return pump to realize circulation, total nitrogen removal is realized through denitrification, and the other part is discharged after being filtered by the filter membrane 113 (clean water that has reached the discharge standard), realizing the treatment of the sewage, and the system water production can be stably up to standard; the two adjacent sewage treatment tanks 1 are connected through the water passing assembly 2, the first water passing sleeve and the second water passing sleeve in the water passing assembly 2 are arranged at the side of the two sewage treatment tanks 1, and the water passing pipe 23 can be inserted into the first water passing sleeve and the second water passing sleeve to realize the connection of the two sewage treatment tanks 1, the outer side of the water passing pipe 23 and the inner side of the first water passing sleeve are provided with the sealing ring 24 to ensure the sealing between the water passing pipe 23 and the first water passing sleeve, the end of the water passing pipe 23 abuts against the sealing gasket in the second water passing sleeve to ensure the sealing between the water passing pipe 23 and the second water passing sleeve, the sealing is good and the connection is simple, and the modular production and use can be realized, the number of the sewage treatment tanks 1 is adjusted according to the actual water quantity and water quality, and the use is flexible, so that the carbon emission is reduced under the premise of meeting the treatment effect.

[0038] For example, the inside of the sewage treatment tank 1 is provided with at least one detachable partition plate 3, and the inside of the sewage treatment tank 1 is divided into at least two sewage treatment zones 11 by the at least one partition plate 3, the partition plate 3 can be provided in various shapes, such as a straight line, an L shape and a cross shape, etc., as shown in Figure 5 and 6 The partition plate 3 is in a straight line or an L shape, and the partition plate 3 can be disassembled according to the shape and number of the required sewage treatment zones 11, generally, the sewage treatment zone 11 is provided with a mounting position (such as a clamping groove) for mounting the partition plate 3, which can facilitate the disassembly and installation of the partition plate, and the partition plate 3 is provided with a communication hole 31 for communicating the two adjacent sewage treatment zones 11 (in the same sewage treatment tank 1), when the communication hole 31 is not used, the first baffle 32 is blocked on the communication hole 31, that is, when the first baffle 32 is removed, the two adjacent sewage treatment zones 11 of the partition plate 3 can be communicated through the communication hole 31 on the partition plate 3, so that the use can be changed according to the actual demand.

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

[0040] Specifically, such as Figure 4 As shown, in one embodiment of the present invention, the device includes four wastewater treatment tanks arranged sequentially in a straight line: a first wastewater treatment tank 101, a second wastewater treatment tank 102, a third wastewater treatment tank 103, and a fourth wastewater treatment tank 104. Each wastewater treatment tank 1 is divided into a first partition 111 and a second partition 112 by a partition 3 (i.e., each wastewater treatment tank 1 has two wastewater treatment zones 11). The first partition 111 of the first wastewater treatment tank 101, the first partition 111 of the second wastewater treatment tank 102, the first partition 111 of the third wastewater treatment tank 103, and the first partition 111 of the fourth wastewater treatment tank 104 are connected sequentially to... The first section 111 of the fourth wastewater treatment tank 104 is connected to the second section 112 of the fourth wastewater treatment tank 104 through the connecting hole 31 on the partition plate 3. The second section 112 of the fourth wastewater treatment tank 104, the second section 112 of the third wastewater treatment tank 103, the second section 112 of the second wastewater treatment tank 102, and the second section 112 of the first wastewater treatment tank 101 are sequentially connected through the water-passing assembly 2. A filter membrane 113 is provided in the second section 112 of the first wastewater treatment tank 101. In this embodiment, the first section 111 is an anoxic zone, and the second section 112 is an aerobic zone.

[0041] In operation, sewage first enters the first sub-zone 111 of the first sewage treatment tank 101, and then flows through the first sub-zone 111 of the second sewage treatment tank 102, the first sub-zone 111 of the third sewage treatment tank 103, the first sub-zone 111 of the fourth sewage treatment tank 104, the second sub-zone 112 of the fourth sewage treatment tank 104, the second sub-zone 112 of the third sewage treatment tank 103, the second sub-zone 112 of the second sewage treatment tank 102, and then enters the second sub-zone 112 of the first sewage treatment tank 101. The water before the filter membrane 113 is partially returned to the first sub-zone 111 of the first sewage treatment tank 101 by the return pump (the separation plate 3 in the first sewage treatment tank 101 can be provided with a return hole to facilitate return), and the other part is filtered through the filter membrane 113 and discharged to the outside. When the actual water quantity is much less than the designed water quantity, the use of the sewage treatment tank 1 can be temporarily reduced (i.e., the number of operating components is reduced) at this time. Specifically, the water passing pipe 23 of the water passing assembly 2 between the third sewage treatment tank 103 and the fourth sewage treatment tank 104 is first blocked, and then the first baffle 32 on the separation plate 3 in the third sewage treatment tank 103 is removed, so that the first sub-zone 111 and the second sub-zone 112 in the third sewage treatment tank 103 are connected through the communication hole 31 on the separation plate 3. At this time, the fourth sewage treatment tank 104 can be disabled. When needed, it can be restored to the original state. If the fourth sewage treatment tank 104 needs to be disabled for a long time, the water passing pipe 23 of the water passing 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 third sewage treatment tank 103 and the second sewage treatment tank 102 can also be disabled by analogy. That is, the number of sewage treatment tanks 1 used can be adjusted according to the actual water quantity and water quality, and the use is flexible, so as to reduce carbon emissions under the premise of meeting the treatment effect.

[0042] For example, the four sides of the sewage treatment tank 1 are provided with the first water passing sleeve 21 and the second water passing sleeve 22, and the side of the sewage treatment tank 1 is also provided with the second baffle 26 for blocking the unused first water passing sleeve 21 and second water passing sleeve 22. That is, the four sides of one sewage treatment tank 1 can be connected with another sewage treatment tank 1 through the water passing assembly 2. Generally, in one side of the sewage treatment tank 1, the axis of the first water passing sleeve 21 and the axis of the second water passing sleeve 22 are symmetrically arranged, and in the opposite two sides of the sewage treatment tank 1, the first water passing sleeve 21 on one side is arranged opposite to the second water passing sleeve 22 on the other side, so as to connect two sewage treatment tanks 1, thereby flexibly adjusting the relative position of the two sewage treatment tanks 1, so that the arrangement of the device is flexible and variable, for example, Figure 5 The arrangement of the plurality of sewage treatment tanks 1 of the device shown can be adjusted to Figure 6 The arrangement shown can adapt to the use requirements of different sites.

[0043] Exemplarily, the first water passing sleeve 21 is provided with a first flange 211 at an end away from the second water passing sleeve 22, and the water passing pipe 23 is provided with a second flange 231 at an end away from the second water passing sleeve 22, the first flange 211 and the second flange 231 are oppositely arranged and connected by a connecting member (such as a bolt), after the water passing pipe 23 is inserted into the first water passing sleeve 21, the first flange 211 and the second flange 231 are connected by the connecting member, which can fix the water passing pipe 23 and keep the end of the water passing pipe 23 abutting against the sealing gasket 25, thereby ensuring the sealing.

[0044] Exemplarily, the second water passing sleeve is provided with an end plate 221 at an end close to the inside of the sewage treatment tank 1 (the sewage treatment tank 1 where the second water passing sleeve is located), the end plate 221 is annular to ensure the communication between the second water passing sleeve and the sewage treatment zone 11, and the sealing gasket 25 is located at an end of the end plate 221 away from the sewage treatment tank 1, when the end of the water passing 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 passing sleeve, and the end plate 221 is fixed with a plurality of mounting studs 222 around the axis of the second water passing sleeve at an end close to the sewage treatment tank 1, which facilitates the subsequent installation of the second baffle 26 or the water guide assembly 4.

[0045] Exemplarily, the device further comprises a water guide assembly 4, the water guide assembly 4 comprises a horizontal pipe 41 and a vertical pipe 42, one end of the horizontal pipe 41 is connected with the end of the second water passing sleeve 22 away from the first water passing sleeve 21, the other end of the horizontal pipe 41 is connected with the top end of the vertical pipe 42, and the bottom end of the vertical pipe 42 extends to the bottom of the sewage treatment tank 1, generally, when the sewage treatment zone 11 is an anoxic zone, the second water passing sleeve 22 of the sewage treatment zone 11 is connected with the water guide assembly 4, which helps the sewage to enter the bottom of the anoxic zone, thereby helping the microorganisms in the sludge at the bottom of the anoxic zone to contact with the organic matters in the sewage to decompose these organic matters, according to the need, the water guide assembly 4 can also be installed at the communication hole 31 of the partition plate 3.

[0046] Exemplary, the device also includes a grid box 5, which is provided with a water inlet 51 and a water outlet (not shown in the figure), the water outlet is communicated with the first sewage treatment area 11 (arranged along the water flow direction), the water inlet 51 and the water outlet are sequentially provided with a slag baffle 52, a flow regulating device 53, a fine grid 54, a fine grid 55 and a grid slag basket 56 along the water flow direction, the flow regulating device 53 includes a overflow area 531 and a shunt area 532 arranged separately, the overflow area 531 is provided with an overflow plate 5311 on the side close to the water inlet 51, the overflow area 531 is communicated with the input end of the fine grid 54, the shunt port 5322 is provided with a gate plate 5321 capable of opening and closing on the side close to the water inlet 51, the shunt area 532 is provided with a shunt port 5322, when the gate plate 5321 is closed, the sewage entering the grid box 5 will all overflow through the overflow plate 5311 to the output end of the fine grid 54 after passing through the slag baffle 52, and then be transported to the first sewage treatment area 11 after sequentially passing through the fine grid 54, the fine grid 55 and the grid slag basket 56, open the gate, part of the sewage after passing through the slag baffle 52 will enter the shunt area 532, and then be transported back to the container storing the sewage, that is, by adjusting the opening of the gate plate 5321, the flow of the sewage overflowing through the overflow plate 5311 into the overflow area 531 can be adjusted, that is, the water inflow of the first sewage treatment area 11 is adjusted, the grid box 5 can intercept the fine suspended solids and fibers in the sewage and adjust the water inflow, preventing the fibers from entering the device and damaging the filter membrane 113.

[0047] Exemplary, the last sewage treatment area 11 arranged along the water flow direction is provided with a detachable membrane mounting rack 6, the filter membrane 113 is mounted on the membrane mounting rack 6, the filter membrane 113 is mounted in the sewage treatment area 11 through the membrane mounting rack 6, facilitating the disassembly and assembly of the filter membrane 113, when the number of sewage treatment areas 11 is increased or decreased, the position of the last sewage treatment area 11 changes, the membrane mounting rack 6 and the filter membrane 113 can be quickly disassembled from the original sewage treatment area 11 and quickly mounted in the subsequent sewage treatment area 11 (the last sewage treatment area 11), to meet the flexible use requirements of the device.

[0048] Exemplary, as shown in Figure 1 and 8 shown Figure 8The top cover of the sewage treatment box 1 is provided with a cover plate 12, and the cover plate 12 is provided with a foul gas collecting hole 121 in communication with the inside of the sewage treatment box 1. The gas in the sewage treatment box 1 is concentrated and discharged outside the sewage treatment tank through the foul gas collecting hole 121, which facilitates the collection of irritating odor and harmful gas and prevents the emission of foul gas and the influence on the environment. The top of the sewage treatment box 1 is provided with a fence installation base 13, which facilitates the subsequent installation of a fence according to the needs. The top and bottom of the sewage treatment box 1 are both equipped with universal rotating lifting rings 14, and the sewage treatment box 1 can be hoisted horizontally and vertically. The bottom of the sewage treatment box 1 is also provided with a mounting seat 15 that can also be used for equipment fixation, thereby preventing tilting. The top of the sewage treatment box 1 is pre-installed with a falling prevention net installation hole 16, which facilitates the subsequent installation of a falling prevention net according to the needs and improves the safety factor. The lower part of the sewage treatment box 1 body is provided with a plurality of pipeline interfaces 17 for connecting pipelines, which facilitates the connection of pipelines, the concentration of pipelines, and the overall equipment appearance. The bottom of each sewage treatment area 11 in the sewage treatment box 1 is provided with a emptying port 18, which facilitates the emptying of the equipment during water testing and maintenance. Each sewage treatment area 11 in the sewage treatment box 1 is provided with a ladder 19 handrail, which facilitates personnel access. The device is equipped with ladders 19, which are of corner type and straight type, and can be selected and set up according to the needs, which is beneficial to subsequent operation and maintenance.

[0049] The above is only the preferred embodiment of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the technical principles of the present application, several improvements and replacements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A sewage treatment apparatus characterised in that: The sewage treatment tank comprises at least two sewage treatment boxes, at least one sewage treatment area is arranged in each sewage treatment box, each sewage treatment area in all sewage treatment boxes is sequentially communicated along the water flow direction, a filter membrane is arranged in the last sewage treatment area, the water body on the front side of the filter membrane flows back to the first sewage treatment area, and the water body filtered through the filter membrane is discharged to the outside; Two adjacent sewage treatment boxes are connected through a water passing assembly, the water passing assembly comprises a first water passing sleeve, a second water passing sleeve and a water passing pipe, the first water passing sleeve is arranged on one side of one of the sewage treatment boxes and is communicated with one sewage treatment area of the sewage treatment box, the second water passing sleeve is arranged on one side of the other sewage treatment box and is communicated with one sewage treatment area of the sewage treatment box, the first water passing sleeve and the second water passing sleeve are respectively arranged on the inner side of the sewage treatment box, the position of the second water passing sleeve corresponds to the position of the first water passing sleeve, a ring-shaped sealing gasket is fixedly arranged in the second water passing sleeve in a matched mode, the water passing pipe is inserted into the first water passing sleeve, a sealing ring is arranged between the outer side of the water passing pipe and the inner side of the first water passing sleeve, and the end of the water passing pipe extends into the second water passing sleeve and abuts against the sealing gasket. The inside of the sewage treatment box is provided with a detachable partition plate, the inside of the sewage treatment box is divided into two sewage treatment areas by the partition plate, a communication hole for communicating two adjacent sewage treatment areas is arranged on the partition plate, and a first baffle is arranged on the communication hole when the communication hole is not used. The two sewage treatment areas in the sewage treatment box are a first subarea and a second subarea, a plurality of first subareas are sequentially communicated along the water flow direction, a plurality of second subareas are sequentially communicated along the water flow direction, the first first subarea and the last second subarea are located in the same sewage treatment box, and the last first subarea and the first second subarea are located in the same sewage treatment box; one end of the first water passing sleeve away from the second water passing sleeve is provided with a first flange, one end of the water passing pipe away from the second water passing sleeve is provided with a second flange, and the first flange and the second flange are oppositely arranged and connected through a connecting piece.

2. The sewage treatment apparatus according to claim 1, characterized by: The four sides of the sewage treatment box are provided with the first water passing sleeve and the second water passing sleeve, and the side of the sewage treatment box is further provided with a second baffle for blocking the first water passing sleeve and the second water passing sleeve which are not used.

3. The sewage treatment apparatus according to claim 1, characterized by: One end of the second water passing sleeve close to the inside of the sewage treatment box is provided with an end plate, the sealing gasket is located at the end of the end plate away from the sewage treatment box, and a plurality of mounting studs arranged around the axis of the second water passing sleeve are fixed to the end of the end plate close to the sewage treatment box.

4. The sewage treatment apparatus according to claim 1, characterized by: The water guide assembly comprises a horizontal pipe and a vertical pipe, one end of the horizontal pipe is connected to one end of the second water passing sleeve away from the first water passing sleeve, the other end of the horizontal pipe is connected to the top end of the vertical pipe, and the bottom end of the vertical pipe extends to the bottom of the sewage treatment box.

5. The sewage treatment apparatus of claim 1, wherein: The grid box is internally provided with a water inlet and a water outlet, the water outlet is communicated with the first sewage treatment area, a slag baffle, a flow regulating device, a fine grid, a fine grid and a grid slag basket are sequentially arranged between the water inlet and the water outlet along the water flow direction, the flow regulating device comprises a overflow area and a shunt area which are separately arranged, the overflow area is provided with an overflow plate on the side close to the water inlet, the overflow area is communicated with the input end of the fine grid, the shunt area is provided with a gate plate which can be opened and closed on the side close to the water inlet, and the shunt area is internally provided with a shunt port.

6. The sewage treatment apparatus of claim 1, wherein: A detachable membrane mounting rack is arranged in the last sewage treatment area, and the filter membrane is mounted on the membrane mounting rack.

7. The sewage treatment apparatus of claim 1, wherein: A cover plate is arranged on the top cover of the sewage treatment tank, and the cover plate is provided with a foul gas collecting hole which is communicated with the inside of the sewage treatment tank.

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