Integrated sewage treatment equipment

Abstract

The utility model provides integrated sewage treatment equipment and relates to the technical field of sewage treatment. The treatment equipment comprises a treatment box which is divided into a working chamber and a sewage treatment chamber; the partition plate divides the sewage treatment room into a first treatment area and a second treatment area, a sedimentation tank and an aerobic tank are arranged in the first treatment area, and a filter tank, an anaerobic tank and an anoxic tank are sequentially arranged in the second treatment area; the drainage assembly is mounted in the sedimentation tank; the filter tank is provided with a plurality of filter screens along the height direction of the filter tank; the water outlet pipe fitting is mounted in the workshop; the nitrification liquid backflow assembly is mounted in the sedimentation tank; the sludge backflow assembly is mounted in the sedimentation tank; the aeration assemblies are mounted in the aerobic tank, the anaerobic tank and the anoxic tank. According to the utility model, the pools in the treatment box are reasonably arranged and adjusted, so that the pools better conform to the flow state of water flow, the water flow is not easy to generate short flow in the pools, the dead water area is reduced, the nitrate backflow efficiency is improved, and the treatment load is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an integrated sewage treatment device. Background Art

[0002] MagBR-MBBR integrated magnetic biofilm sewage treatment equipment is mainly used for decentralized point source pollution interception and treatment, such as:

[0003] (1) Treatment of decentralized domestic sewage in rural areas and small towns.

[0004] (2) Treatment and reuse of domestic sewage in residential areas, schools, hotels and small enterprises and institutions.

[0005] (3) Treatment and reuse of wastewater in hospitals, industrial parks, etc.

[0006] (4) Treatment of landfill / garbage leachate.

[0007] (5) Treatment and reuse of decentralized wastewater in highway service areas, tourist attractions, resorts, etc.

[0008] The treatment pools of traditional integrated magnetic biofilm sewage treatment equipment are distributed in a straight line. During the sewage treatment process, the flow state of the sewage is affected by the layout of the treatment pools, which is prone to interruption of flow and formation of dead water areas. Utility Model Content

[0009] In order to solve the above technical problems, the utility model provides an integrated sewage treatment equipment, which reasonably adjusts the layout of each pool in the treatment box to make it more in line with the flow state of the water, making it less likely for the water to short-circuit in the pool, reducing the dead water area, improving the nitrate reflux efficiency, and increasing the treatment load.

[0010] The technical solution adopted by the utility model is:

[0011] An integrated sewage treatment device, comprising:

[0012] A processing box, wherein the processing box is divided into a working room and a sewage processing room along the length direction of the processing box;

[0013] A partition is provided to separate the sewage treatment room into a first treatment area and a second treatment area along the length direction of the treatment box, wherein a sedimentation tank and an aerobic tank are sequentially arranged in the first treatment area along the length direction thereof, and the sedimentation tank is arranged close to the workroom, and a filter tank, an anaerobic tank and an anoxic tank are sequentially arranged in the second treatment area, and the filter tank is arranged close to the workroom;

[0014] A drainage component is installed in the sedimentation tank, and the water outlet of the drainage component is arranged at the bottom of the filter tank;

[0015] Filter screen, the filter tank is provided with a plurality of filter screens along its height direction;

[0016] A water outlet pipe is installed in the workroom, one end of which is connected to the filter tank and the other end of which is connected to the outside;

[0017] A nitrification liquid reflux component is installed in the sedimentation tank and is connected to the anoxic tank;

[0018] A sludge return assembly is installed in the sedimentation tank and is connected to the anaerobic tank;

[0019] An aeration component, wherein the aerobic tank, the anaerobic tank and the anoxic tank are all equipped with the aeration component;

[0020] Among them, the sewage in the sedimentation tank enters the drainage component through overflow, and then enters the bottom of the filter tank through the drainage component. The anoxic tank is connected to the bottom of the anaerobic tank, and the anoxic tank is connected to the aerobic tank through overflow; the sewage enters the filter tank after being treated in the anaerobic tank, the anoxic tank, the aerobic tank, and the sedimentation tank, and is discharged through the outlet pipe.

[0021] Optionally, the processing device further comprises:

[0022] An ultraviolet disinfectant is installed in the workshop, one end of the water inlet of the ultraviolet disinfectant is connected with the water outlet pipe, and one end of the water outlet is connected with the outside.

[0023] Optionally, the processing device further comprises:

[0024] The magnetic microbial filler is filled into the aerobic tank, and its filling rate is 10%-50% of the volume of the aerobic tank.

[0025] Optionally, the processing device further comprises:

[0026] A phosphorus removal device, installed in the workshop or in the aerobic pool;

[0027] When the dephosphorization device is installed in the workshop, the drug outlet of the dephosphorization device is connected to the aerobic tank.

[0028] Optionally, a water distribution tank is provided in the anoxic pool, and a water outlet pipe of the water distribution tank is connected to an external water source.

[0029] Optionally, the aerobic tank is connected to the sedimentation tank via an anti-escape component.

[0030] Optionally, the anti-escape material component includes:

[0031] A drainage pipe, one end of which is sealed, and the other end of which passes through the side wall of the aerobic tank and is connected to the sedimentation tank, and a plurality of seepage holes are arranged on the side wall of the drainage pipe;

[0032] The mounting plate is mounted on the drain pipe, and the mounting plate is fixed on the pool wall of the aerobic pool by screws.

[0033] Optionally, an overflow port is provided on the partition, the overflow port is away from one end of the bottom of the treatment box and connects the anaerobic tank with the aerobic tank, and a filter screen is provided at the overflow port.

[0034] Optionally, the bottoms of the sedimentation tank, aerobic tank, anoxic tank and anaerobic tank are all provided with drain pipes.

[0035] Optionally, the water outlet pipe comprises:

[0036] A water outlet trough is installed in the filter tank, and its installation height is lower than the height of the wall of the filter tank;

[0037] An external discharge pipe has one end connected to the bottom of the water outlet tank, and the other end passes through the wall of the filter tank, passes through the workroom, and extends to the outside of the treatment box.

[0038] Compared with the prior art, the beneficial effects of the utility model are:

[0039] 1. Reasonably adjust the layout of each pool in the treatment box to make it more in line with the flow state of the water, so that the water is not prone to short-circuiting in the pool, reduce dead water areas, improve nitrate return efficiency, and increase treatment load.

[0040] 2. The reflux path is short, the reflux effect is good, and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a schematic diagram of the top view structure of the integrated sewage treatment equipment.

[0043] Figure 2 It is a right view structural schematic diagram of the integrated sewage treatment equipment.

[0044] Figure 3 Schematic diagram of the three-dimensional structure of the integrated sewage treatment equipment Figure 1 .

[0045] Figure 4 Schematic diagram of the three-dimensional structure of the integrated sewage treatment equipment Figure 2 .

[0046] Figure 5 It is a schematic diagram of the partial structure of the integrated sewage treatment equipment.

[0047] Reference numerals:

[0048] 1. Treatment box; 11. Workroom; 12. Sewage treatment room; 13. First treatment area; 131. Sedimentation tank; 132. Aerobic tank; 14. Second treatment area; 141. Filter tank; 142. Anaerobic tank; 143. Anoxic tank;

[0049] 2. partition; 21. overflow port; 22. filter screen;

[0050] 3. Drainage components;

[0051] 4. Filter;

[0052] 5. Water outlet pipe; 51. Water outlet trough; 52. External discharge pipe;

[0053] 6. Nitration liquid reflux assembly;

[0054] 7. Sludge water flow components;

[0055] 8. Aeration components;

[0056] 9. Ultraviolet disinfectant;

[0057] 10. Magnetic microbial filler;

[0058] 110. Phosphorus removal device;

[0059] 120. Water distribution tank;

[0060] 130, anti-escape material assembly; 1301, drainage pipe; 1302, water seepage hole; 1303, installation plate;

[0061] 140. Drain pipe. DETAILED DESCRIPTION

[0062] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0063] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0067] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0068] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0069] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides an integrated sewage treatment equipment, including: a treatment box 1, a partition 2, a drainage component 3, a water outlet pipe 5, a nitrification liquid reflux component 6, a sludge reflux component and an aeration component 8. The treatment box 1 is divided into a workroom 11 and a sewage treatment room 12 along the length direction of the treatment box 1; the partition 2 divides the sewage treatment room 12 into a first treatment area 13 and a second treatment area 14 along the length direction of the treatment box 1. The first treatment area 13 is provided with a sedimentation tank 131 and an aerobic tank 132 in sequence along its length direction, and the sedimentation tank 131 is arranged close to the workroom 11. The second treatment area 14 is provided with a filter tank 141, an anaerobic tank 142 and an anoxic tank 143 in sequence, and the filter tank 141 is arranged close to the workroom 11. The drainage component 3 is installed in the sedimentation tank 131, and the outlet of the drainage component 3 is arranged at the bottom of the filter tank 141. The filter tank 141 is provided with a plurality of filter screens 4 along its height direction. The outlet pipe 5 is installed in the workshop 11, one end of which is connected to the filter tank 141, and the other end is connected to the outside. The nitrification liquid reflux component 6 is installed in the sedimentation tank 131 and is connected to the anoxic tank 143. The sludge reflux component is installed in the sedimentation tank 131 and is connected to the anaerobic tank 142. The aeration component 8 is installed in the aerobic tank 132, the anaerobic tank 142 and the anoxic tank 143. Among them, the sewage in the sedimentation tank 131 enters the drainage component 3 through overflow, and then enters the bottom of the filter tank 141 through the drainage component 3, the anoxic tank 143 is connected to the bottom of the anaerobic tank 142, and the anoxic tank 143 is connected to the aerobic tank 132 through overflow; the sewage enters the filter tank 141 after being treated by the anaerobic tank 142, the anoxic tank 143, the aerobic tank 132, and the sedimentation tank 131, and is discharged through the outlet pipe 5.

[0070] When in use, the sewage first enters the anaerobic tank 142 for preliminary treatment, and the sewage after the preliminary treatment enters the anoxic tank 143 through the openings at the bottom of the anaerobic tank 142 and the bottom of the anoxic tank 143, and undergoes secondary treatment in the anoxic tank 143. The sewage after the secondary treatment enters the aerobic tank 132 by overflow, and then undergoes aeration treatment in the aerobic tank 132, and the treated sewage enters the sedimentation tank 131 for sedimentation. During the sedimentation process, the sewage just enters the filter tank 141 through the drainage component 3, and the sewage in the sedimentation tank 131 enters the drainage component 3 by overflow, and then the outlet of the drainage component 3 is set at the bottom of the filter tank 141. Since the filter tank 141 is provided with a filter screen 4, the sewage enters from the bottom to the top, enters the outlet pipe 5 after being filtered by the filter screen 22, and then is discharged through the outlet pipe 5.

[0071] During the treatment process, the sludge in the sedimentation tank 131 is fed into the anaerobic tank 142 through the sludge return assembly to replenish the sludge content in the anaerobic tank 142 .

[0072] During the treatment process, part of the sewage in the sedimentation tank 131 is circulated to the anoxic tank 143 through the nitrification liquid reflux component 6. After the sewage is refluxed, the sewage in the anoxic tank 143 is subjected to denitrification and denitrification treatment.

[0073] It needs to be further explained that the nitrification liquid return assembly 6, the sludge return assembly and the aeration assembly 8 are all existing designs, and their specific structures and working principles are not described in detail here.

[0074] The drainage assembly 3 has a drainage trough, which is installed in the sedimentation tank 131. The sewage in the sedimentation tank 131 flows into the drainage trough by overflow. A pipe is connected to the bottom of the drainage trough, and the other end of the pipe is connected to the filter tank 141. The water outlet of the pipe is located at the bottom of the filter tank 141, which facilitates the sewage to flow from bottom to top. The sewage is filtered through the filter screen 22 during the flow.

[0075] In one embodiment, if Figure 2 and Figure 3 As shown, the treatment equipment further includes: an ultraviolet disinfector 9, which is installed in the workroom 11, and one end of the water inlet of the ultraviolet disinfector 9 is connected to the water outlet pipe 5, and one end of the water outlet is connected to the outside.

[0076] When in use, the water outlet of the water outlet pipe 5 is connected to the water inlet of the ultraviolet disinfector 9, the sewage is disinfected in the ultraviolet disinfector 9, and the disinfected sewage is discharged from the treatment box 1.

[0077] In one embodiment, if Figure 1As shown, the treatment equipment further includes: a magnetic microbial filler 10, which is filled into the aerobic tank 132, and its filling rate is 10%-50% of the volume of the aerobic tank 132.

[0078] The aerobic pool 132 is added with magnetic microbial filler 10, and the biochemical reaction is enhanced through the microorganisms attached to the filler and the suspended activated sludge, thereby reducing COD, removing ammonia nitrogen, and achieving phosphorus absorption.

[0079] In one embodiment, if Figure 2 As shown, the treatment equipment further includes: a phosphorus removal device 110, which is installed in the workroom 11 or in the aerobic pool 132.

[0080] When the dephosphorization device 110 is installed in the workshop 11 , the chemical outlet of the dephosphorization device 110 is connected to the aerobic pool 132 .

[0081] There are two types of dephosphorization devices 110 in this embodiment, one of which is installed in the workshop 11, and the reagent is added into the aerobic pool 132 through a key. And the dephosphorization device 110 is an existing design, and its specific structure and working principle are not repeated here.

[0082] Another embodiment is to use the electrolytic dephosphorization device 110 for dephosphorization. The device is directly installed in the aerobic tank 132, and the specific structure and working principle are all existing designs, so they are not described here.

[0083] In one embodiment, if Figure 3 and Figure 4 As shown, a water distribution tank 120 is provided in the anoxic pool 143, and the outlet pipe of the water distribution tank 120 is connected to an external water source. The water inlet in the anoxic pool 143 may fluctuate due to changes in the liquid level or blockage of the water pump, and after the water distribution tank 120 is provided, when the water volume increases, the excess water will be discharged back to the front end through the outlet pipe on the water distribution tank 120, thereby ensuring uniform water inlet.

[0084] In one embodiment, if Figure 1 and Figure 5 As shown, in order to prevent the magnetic microbial filler 10 in the aerobic tank 132 from escaping, the aerobic tank 132 and the sedimentation tank 131 are connected via an anti-escaping assembly 130 .

[0085] The anti-escape component 130 specifically includes: a drain pipe 1301 and a mounting plate 1303. One end of the drain pipe 1301 is sealed, and the other end passes through the side wall of the aerobic tank 132 and is connected to the sedimentation tank 131. A plurality of water seepage holes 1302 are provided on the side wall of the drain pipe 1301. The mounting plate 1303 is installed on the drain pipe 1301, and the mounting plate 1303 is fixed to the wall of the aerobic tank 132 by screws.

[0086] When in use, sewage enters the drain pipe 1301 through the seepage hole 1302 provided on the drain pipe 1301, and then enters the sedimentation tank 131 through the drain pipe 1301. During the drainage process, the magnetic microbial filler 10 filled in the aerobic tank 132 may rise with the water flow, so the size of the seepage hole 1302 is smaller than the size of the magnetic microbial filler 10. The installation plate 1303 is provided to facilitate the installation and fixation of the drain pipe 1301.

[0087] In one embodiment, if Figure 3 and Figure 4 As shown, an overflow port 21 is provided on the partition 2 , and the overflow port 21 is away from the bottom end of the treatment box 1 and connects the anaerobic tank 142 with the aerobic tank 132 . A filter screen 22 is provided at the overflow port 21 .

[0088] The overflow port 21 is provided on the partition plate 2 to facilitate the discharge of sewage from the anaerobic tank 142 into the aerobic tank 132 and to prevent the filler in the aerobic tank 132 from entering the anaerobic tank 142 during the drainage process.

[0089] In one embodiment, if Figure 3 As shown, in order to facilitate the emptying of the treatment box 1 , an emptying pipe 140 is provided at the bottom of the sedimentation tank 131 , the aerobic tank 132 , the anoxic tank 143 and the anaerobic tank 142 .

[0090] In one embodiment, if Figure 1 and Figure 2 As shown, the water outlet pipe 5 includes: a water outlet trough 51 and an external discharge pipe 52. The water outlet trough 51 is installed in the filter tank 141, and its installation height is lower than the height of the pool wall of the filter tank 141. One end of the external discharge pipe 52 is connected to the bottom of the water outlet trough 51, and the other end passes through the pool wall of the filter tank 141, passes through the workroom 11, and extends to the outside of the treatment box 1.

[0091] When in use, the sewage in the filter tank 141 overflows into the water outlet trough 51 , then enters the external discharge pipe 52 through the water outlet trough 51 , and then the treated sewage is discharged through the external discharge pipe 52 .

[0092] When the external discharge pipe 52 is connected to the ultraviolet disinfector 9, the sewage is discharged into the ultraviolet disinfector 9 for disinfection treatment.

[0093] The processing technology of the processing equipment recorded in the utility model is:

[0094] Sewage enters the sewage treatment system through the collection pipe network, first flows through the screen to remove the larger suspended solids, and then enters the regulating tank for homogenization. Then the sewage is lifted to the MagBR-MBBR integrated sewage treatment equipment by the lifting pump, and the sewage and the return sludge enter the anaerobic tank 142 (DO<0.2mg / L) for complete mixing. After anaerobic decomposition, part of the BOD is removed, and the polyphosphate bacteria in the return sludge release phosphorus to meet the bacteria's demand for phosphorus. Then the sewage flows into the anoxic tank 143 (DO=0.2-0.5mg / L). The denitrifying bacteria in the tank use the carbon-containing organic matter in the sewage as a carbon source, and reduce the NO3- that flows back through the internal circulation in the aerobic tank 132 to N2 and release it. The sewage flows into the aerobic tank 132 (DO=2-4mg / L), and the NH3-N (ammonia nitrogen) in the water undergoes nitrification to generate nitrate ions. At the same time, the polyphosphate microorganisms absorb phosphorus from the water and enrich it in the microorganisms. The sewage then enters the inclined plate sedimentation tank 131 for sedimentation, and the clean water enters the filter tank 141, and is discharged after being filtered and disinfected by ultraviolet light and meeting the discharge standards.

[0095] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrated sewage treatment equipment, characterized in that: include: A processing box, wherein the processing box is divided into a working room and a sewage processing room along the length direction of the processing box; A partition is provided to separate the sewage treatment room into a first treatment area and a second treatment area along the length direction of the treatment box, wherein a sedimentation tank and an aerobic tank are sequentially arranged in the first treatment area along the length direction thereof, and the sedimentation tank is arranged close to the workroom, and a filter tank, an anaerobic tank and an anoxic tank are sequentially arranged in the second treatment area, and the filter tank is arranged close to the workroom; A drainage component is installed in the sedimentation tank, and the water outlet of the drainage component is arranged at the bottom of the filter tank; Filter screen, the filter tank is provided with a plurality of filter screens along its height direction; A water outlet pipe is installed in the workroom, one end of which is connected to the filter tank and the other end of which is connected to the outside; A nitrification liquid reflux component is installed in the sedimentation tank and is connected to the anoxic tank; A sludge return assembly is installed in the sedimentation tank and is connected to the anaerobic tank; An aeration component, wherein the aerobic tank, the anaerobic tank and the anoxic tank are all equipped with the aeration component; Among them, the sewage in the sedimentation tank enters the drainage component through overflow, and then enters the bottom of the filter tank through the drainage component. The anoxic tank is connected to the bottom of the anaerobic tank, and the anoxic tank is connected to the aerobic tank through overflow; the sewage enters the filter tank after being treated in the anaerobic tank, the anoxic tank, the aerobic tank, and the sedimentation tank, and is discharged through the outlet pipe.

2. The integrated sewage treatment equipment according to claim 1, characterized in that: The processing device further comprises: An ultraviolet disinfectant is installed in the workshop, one end of the water inlet of the ultraviolet disinfectant is connected with the water outlet pipe, and one end of the water outlet is connected with the outside.

3. The integrated sewage treatment equipment according to claim 1, characterized in that: The processing device further comprises: The magnetic microbial filler is filled into the aerobic tank, and its filling rate is 10%-50% of the volume of the aerobic tank.

4. The integrated sewage treatment equipment according to claim 1, characterized in that: The processing device further comprises: A phosphorus removal device, installed in the workshop or in the aerobic pool; When the dephosphorization device is installed in the workshop, the drug outlet of the dephosphorization device is connected to the aerobic tank.

5. The integrated sewage treatment equipment according to claim 1, characterized in that: A water distribution tank is arranged in the anoxic pool, and a water outlet pipe of the water distribution tank is connected with an external water source.

6. The integrated sewage treatment equipment according to claim 1, characterized in that: The aerobic tank is connected to the sedimentation tank via an anti-escape component.

7. The integrated sewage treatment equipment according to claim 6, characterized in that: The anti-escape material component comprises: A drainage pipe, one end of which is sealed, and the other end of which passes through the side wall of the aerobic tank and is connected to the sedimentation tank, and a plurality of seepage holes are arranged on the side wall of the drainage pipe; The mounting plate is mounted on the drain pipe, and the mounting plate is fixed on the pool wall of the aerobic pool by screws.

8. The integrated sewage treatment equipment according to claim 1, characterized in that: The partition is provided with an overflow port, the overflow port is far away from one end of the bottom of the treatment box and connects the anaerobic tank with the aerobic tank, and a filter screen is provided at the overflow port.

9. The integrated sewage treatment equipment according to claim 1, characterized in that: The bottoms of the sedimentation tank, aerobic tank, anoxic tank and anaerobic tank are all provided with drain pipes.

10. The integrated sewage treatment equipment according to claim 1, characterized in that: The water outlet pipe comprises: A water outlet trough is installed in the filter tank, and its installation height is lower than the height of the wall of the filter tank; An external discharge pipe has one end connected to the bottom of the water outlet tank, and the other end passes through the wall of the filter tank, passes through the workroom, and extends to the outside of the treatment box.

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