CN210261462U - Exempt from sewage treatment system of extensive civil engineering - Google Patents
Exempt from sewage treatment system of extensive civil engineering Download PDFInfo
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- CN210261462U CN210261462U CN201920848226.5U CN201920848226U CN210261462U CN 210261462 U CN210261462 U CN 210261462U CN 201920848226 U CN201920848226 U CN 201920848226U CN 210261462 U CN210261462 U CN 210261462U
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Abstract
The utility model provides a large-scale civil-engineering-free sewage treatment system, which comprises a sewage treatment device and an integrated tank, wherein an aerobic zone and a membrane zone are arranged in the tank body of the sewage treatment device, and a membrane bioreactor MBR membrane and a nitrifying liquid return pipe are arranged in the membrane zone; a grating area and a regulating area are arranged in the integrated tank, the grating area is provided with a sewage inlet, and gratings and separation nets are arranged in the grating area at intervals; a submersible stirrer and a lifting pump are arranged in the adjusting area, and the lifting pump is communicated with the aerobic area through a sewage pipeline; an outlet of the nitrifying liquid return pipe extends into the regulating area, and the regulating area is communicated with the tank body through the nitrifying liquid return pipe; the sludge drying area is communicated with the tank body through a sludge pipe. Sewage treatment system overcome among the prior art sewage treatment system need large-scale civil engineering work volume's problem when site operation, effectively reduced the civil engineering work volume when site operation, and improved efficiency of construction, labour saving and time saving.
Description
Technical Field
The utility model relates to a sewage treatment system especially relates to a exempt from sewage treatment system of extensive civil engineering.
Background
Fig. 1 is a schematic structural diagram of a conventional sewage treatment system, which is composed of a grid tank 1, an adjusting tank 2, an MBR (membrane bioreactor) integrated sewage treatment device 3, a sludge drying tank 4 and other components.
Wherein, grid pond 1 is equipped with sewage inlet and sewage outlet, and the sewage outlet is connected with the sewage inlet of equalizing basin 2. The grating tank 1 is internally provided with a grating 11 and a separation net 12 for intercepting large impurities.
A submersible mixer 21 and a lifting pump 22 are arranged in the adjusting tank 2, and the lifting pump 22 is connected with a sewage inlet of the MBR integrated sewage treatment device 3 through a sewage pipeline.
The MBR integrated sewage treatment device 3 comprises a tank body, the interior of the tank body is divided into an aerobic zone 31 and a membrane zone 32, and the aerobic zone 31 and the membrane zone 32 are separated by a partition plate 38. The aerobic zone 31 is internally provided with activated sludge for converting pollutant ammonia nitrogen in the sewage into nitrate nitrogen, and a sewage inlet of the MBR integrated sewage treatment equipment 3 is arranged on one side of the aerobic zone 31. An MBR membrane 37 for realizing solid-liquid separation is arranged in the membrane area 32, the top of the MBR membrane 37 is connected with a clear water discharging pipe, and a water producing pump 36 is arranged on the clear water discharging pipe. One end of the nitrifying liquid return pipe 39 is inserted into the membrane area 32, the other end of the nitrifying liquid return pipe is connected with the regulating tank 1, and the nitrifying liquid return pipe 39 in the membrane area 32 is a vertically arranged pipeline with an open top. Air pipes 34 are arranged in the aerobic zone 31 and the membrane zone 32, aeration discs 35 are distributed on the air pipes 34, and the air pipes 34 in the aerobic zone 31 and the membrane zone 32 are connected with an oxygen fan 33.
The top of the adjusting tank 2 is embedded with a sludge drying tank 4, and the bottom of the MBR integrated sewage treatment device 3 is connected with the sludge drying tank 4 through a sludge pipeline 310. The bottom of the sludge drying tank 4 is provided with a hole and is communicated with the adjusting tank 2.
The process flow of the existing sewage treatment system is as follows: sewage-grating tank 1/sand setting tank-regulating tank 2/hydrolysis tank-MBR integrated sewage treatment equipment-water quality reaching standard-recycling. The specific process of the process flow is as follows:
after the sewage 100 passes through the grid pond 1, large impurities can be intercepted by the grid 11 and the partition net 12, sand particles can be precipitated in the grid pond 1, and the grid pond 1 designed based on the dispersive particle precipitation theory is adopted, so that the sand precipitation effect is better and more stable. Sewage further gets into equalizing basin 2, accomplishes the homogeneity and the even volume process of sewage, is equipped with dive mixer 21 and elevator pump 22 in the equalizing basin 2, then stable sewage passes through in elevator pump 22 pump to MBR integration sewage treatment device 3, through the processing of activated sludge to sewage, simultaneously through the high-efficient "solid-liquid separation" ability of MBR diaphragm, the play water quality of water stability of production can be used to after up to standard to retrieve etc. the surplus mud of production can be used to farmland fertilization etc. after the mummification.
The MBR integrated sewage treatment device 3 is internally provided with oxygen by an oxygen fan 33 to supply oxygen to the aerobic zone 31 and the membrane zone 32. The oxygen blower 33 is connected with the air pipe 34 and aerates through the aeration disc 35. Negative pressure is formed between the water production pump 36 and the MBR membrane 37, and clear water 200 inside the equipment is produced and discharged to the outside of the equipment through solid-liquid separation of the MBR membrane 37.
The nitrifying liquid return pipe 39 in the device is mainly used for the denitrification function in sewage treatment. In the aerobic zone 31, nitrifying bacteria in the activated sludge inside the equipment convert pollutant ammonia nitrogen in the sewage into nitrate nitrogen, a large amount of nitrate nitrogen flows from the aerobic zone 31 to the membrane zone 32, when the water level rises until the top of a nitrifying liquid return pipe 39 inside the equipment is submerged, nitrifying liquid containing the nitrate nitrogen automatically flows to the regulating tank 2 through the nitrifying liquid return pipe 39 by gravity, the regulating tank 2 is in an anoxic environment, and denitrifying bacteria in the regulating tank 2 convert the nitrate nitrogen into nitrogen, so that the denitrification function in the sewage treatment is completed.
Sludge at the bottom of the MBR integrated sewage treatment device 3 is sent into the sludge drying tank 4 through a sludge pipeline 310. The water in the sludge drying tank 4 flows into the adjusting tank 2 through the bottom opening.
The existing sewage treatment system has the following problems:
contain a plurality of equipment that need the site operation preparation such as grid pond, equalizing basin and MBR jar body for current sewage treatment system needs large-scale civil engineering work volume, wastes time and energy when the site operation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is how to reduce the civil engineering construction amount when the sewage treatment system is constructed on site.
In order to solve the technical problem, the technical scheme of the utility model provides a large-scale civil engineering-free sewage treatment system, which comprises a sewage treatment device and an integrated tank, wherein the sewage treatment device comprises a tank body, an aerobic zone and a membrane zone are arranged in the tank body, and a membrane bioreactor MBR membrane and a nitrifying liquid return pipe are arranged in the membrane zone; the inlet of the nitrifying liquid return pipe is arranged above the sludge area at the bottom of the tank body, and the outlet of the nitrifying liquid return pipe downwards penetrates through the bottom of the tank body;
a grating area and an adjusting area are arranged in the integration tank, the grating area and the adjusting area are separated by a partition plate, and a through hole for communicating the grating area and the adjusting area is formed in the partition plate; the grid area is provided with a sewage inlet, and grids and separation nets are arranged in the grid area at intervals; the adjusting area is communicated with the aerobic area through a sewage pipeline, the inlet end of the sewage pipeline is positioned at the bottom in the adjusting area, and the outlet end of the sewage pipeline is positioned in the aerobic area;
an outlet of the nitrifying liquid return pipe extends into the regulating area, and the regulating area is communicated with the tank body through the nitrifying liquid return pipe;
the top in the regulating area encloses and closes out the sludge drying district, the sludge drying district pass through the sludge pipe with jar body intercommunication, just the entrance point of sludge pipe is located the jar is internal, the exit end of sludge pipe is located in the sludge drying district.
Preferably, said aerobic zone and said membrane zone are separated by a partition.
Preferably, the through-hole is located at an upper portion of the partition plate.
Preferably, the inlet end of the sludge pipe is located below the partition plate.
Preferably, the sewage treatment equipment further comprises a clean water discharging pipe, the inlet end of the clean water discharging pipe is connected with the top of the MBR membrane, the outlet end of the clean water discharging pipe penetrates through the tank body and extends out of the tank body, and a water generating pump is arranged on the clean water discharging pipe.
Preferably, air pipes are arranged in the aerobic zone and the membrane zone, aeration discs are distributed on the air pipes, and the air pipes are connected with oxygen blowers.
Preferably, the nitrifying liquid return pipe in the membrane area is a pipe with an open top and arranged vertically.
Preferably, a submersible mixer is arranged in the adjusting area.
Preferably, a lift pump is arranged in the adjusting zone and is communicated with the aerobic zone through the sewage pipeline.
Preferably, the grid is arranged at a sewage inlet of the grid area, and the separation net is arranged on one side of the separation plate.
The utility model provides a pair of exempt from sewage treatment system of extensive civil engineering, with the equalizing basin that needs the site operation preparation among the prior art and grid pond integrated to can be prefabricated in advance in the integrated jar, integrated jar with the jar body all can be made by the equipment manufacturer in the mill earlier and take the job site to again for during site operation, only need accomplish integrated jar with the foundation civil engineering of two jars of the jar body can, effectively reduced the civil engineering work volume during site operation, and improved sewage treatment system's site operation efficiency.
To sum up, sewage treatment system overcome among the prior art sewage treatment system and need the problem of large-scale civil engineering work volume when the site operation, effectively reduced the civil engineering work volume when the site operation, and improved efficiency of construction, labour saving and time saving.
Drawings
FIG. 1 is a schematic view of a conventional sewage treatment system;
fig. 2 is the utility model provides a sewage treatment system's that exempts from extensive civil engineering structure schematic diagram.
In the drawings, arrows indicate flow directions.
Detailed Description
Fig. 2 is a schematic structural diagram of a large-scale civil engineering-free sewage treatment system provided in this embodiment, where the large-scale civil engineering-free sewage treatment system includes a sewage treatment device 3 and an integrated tank 6, where the sewage treatment device 3 is an MBR-integrated sewage treatment device.
The sewage treatment device 3 comprises a tank body, wherein an aerobic zone 31 and a membrane zone 32 are arranged in the tank body, and the aerobic zone 31 and the membrane zone 32 are separated by a partition plate 38. Air pipes 34 are arranged in the aerobic zone 31 and the membrane zone 32, aeration discs 35 are distributed on the air pipes 34, and the air pipes 34 are connected with oxygen blowers 33.
The aerobic zone 31 is internally provided with activated sludge for converting pollutant ammonia nitrogen in the sewage into nitrate nitrogen. A membrane bioreactor MBR membrane 37 and a nitrifying liquid return pipe 39 for realizing solid-liquid separation are arranged in the membrane area 32. The top of the MBR membrane 37 is connected with a clear water discharge pipe, and a water production pump 36 is arranged on the clear water discharge pipe. The inlet of the nitrifying liquid return pipe 39 is arranged above the sludge area at the bottom of the tank body, the outlet of the nitrifying liquid return pipe 39 downwards penetrates through the bottom of the tank body, and the nitrifying liquid return pipe 39 in the membrane area 32 is a vertically arranged pipeline with an open top.
Be equipped with grid district 8 and regulation district 9 in the integrated jar 6, grid district 8 with regulation district 9 separates through division board 7, just be equipped with the intercommunication on division board 7 grid district 8 with the through-hole of regulation district 9.
The grating area 8 is provided with a sewage inlet, gratings 11 and a separation net 12 are arranged in the grating area 8 at intervals to intercept large sundries, wherein the gratings 11 are close to the sewage inlet of the grating area 8, and the separation net 12 is close to the partition plate 7. The through holes are located at the upper part of the partition plate 7, so that the upper layer water after primary filtration in the grating area 8 enters the regulating area 9 through the through holes.
The adjusting area 9 is internally provided with a submersible stirrer 21 and a lifting pump 22, the lifting pump 22 is communicated with the aerobic area 31 through a sewage pipeline 5, the inlet end of the sewage pipeline 5 is positioned at the bottom of the adjusting area 9, and the outlet end of the sewage pipeline 5 is positioned in the aerobic area 31.
A sludge drying area 10 is enclosed at the top of the adjusting area 9, the sludge drying area 10 is communicated with the tank body through a sludge pipe 310, and the inlet end of the sludge pipe 310 is positioned in the tank body; the outlet end of the sludge pipe 310 is positioned in the sludge drying zone 10, and because sludge is easy to accumulate below the partition plate 38, the inlet end of the sludge pipe 310 is positioned below the partition plate 38, and sludge is easy to discharge.
The process flow of the active denitrification membrane bioreactor sewage treatment system provided by the embodiment is as follows: sewage-grating area/sand sediment area-regulating area/hydrolysis area-MBR integrated sewage treatment equipment-water quality reaching-standard-recycling. The specific process of the process flow is as follows:
after the sewage 100 passes through the grating area 8, large sundries can be intercepted by the grating 11 and the separation net 12, meanwhile, sand particles can be precipitated in the grating area 8, and the grating area 8 designed based on the dispersive particle precipitation theory is adopted, so that the sand precipitation effect is better and more stable. Sewage further gets into regulatory region 9, accomplishes the homogeneity and the even volume process of sewage, is equipped with dive mixer 21 and elevator pump 22 in the regulatory region 9, then stable sewage passes through in elevator pump 22 pump to aerobic zone 31, through the processing of active sludge to sewage, simultaneously through the high-efficient "solid-liquid separation" ability of MBR diaphragm, the play water quality of water stability of production can be used to recovery etc. after reaching standard, the surplus mud of production can be used to farmland fertilization etc. after the mummification.
The interior of the sewage treatment apparatus 3 is supplied with oxygen by an oxygen blower 33 to supply oxygen to the aerobic zone 31 and the membrane zone 32. The oxygen blower 33 is connected with the air pipe 34 and aerates through the aeration disc 35. Negative pressure is formed between the water production pump 36 and the MBR membrane 37, and clear water 200 inside the equipment is produced and discharged to the outside of the equipment through solid-liquid separation of the MBR membrane 37.
The nitrifying liquid return pipe 39 in the sewage treatment equipment is mainly used for the denitrification function in the sewage treatment. In the aerobic zone 31, nitrifying bacteria in the activated sludge inside the sewage treatment device 3 convert pollutant ammonia nitrogen into nitrate nitrogen, a large amount of nitrate nitrogen flows from the aerobic zone 31 to the membrane zone 32, when the water level rises until the top of a nitrifying liquid return pipe 39 inside the device is submerged, nitrifying liquid containing the nitrate nitrogen automatically flows to the regulating zone 9 through the nitrifying liquid return pipe 39 by gravity, the regulating zone 9 is an anoxic environment, and denitrifying bacteria in the regulating zone 9 convert the nitrate nitrogen into nitrogen, so that the denitrification function in the sewage treatment is completed.
The sludge in the sewage treatment equipment 3 is sent into the sludge drying zone 10 through a sludge pipeline 310, and the water in the sludge drying zone 10 flows into the adjusting zone 9 through an opening at the bottom of the water.
It should be understood that the terms "upper" and "lower" as used herein, and the like, are defined relative to the structures shown in the drawings and are relative terms, such that the description may be changed according to the position and the use state of the structure. Therefore, these and other directional terms should not be construed as limiting terms.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the method of the present invention, and such modifications and additions are also considered to be within the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an exempt from sewage treatment system of large-scale civil engineering which characterized in that: comprises a sewage treatment device (3) and an integrated tank (6), wherein:
the sewage treatment equipment (3) comprises a tank body, wherein an aerobic zone (31) and a membrane zone (32) are arranged in the tank body, and a membrane bioreactor MBR membrane (37) and a nitrifying liquid return pipe (39) are arranged in the membrane zone (32); the inlet of the nitrifying liquid return pipe (39) is arranged above the sludge area at the bottom of the tank body, and the outlet of the nitrifying liquid return pipe (39) downwards penetrates through the bottom of the tank body;
a grating area (8) and an adjusting area (9) are arranged in the integration tank, the grating area (8) and the adjusting area (9) are separated by a partition plate (7), and a through hole for communicating the grating area (8) with the adjusting area (9) is formed in the partition plate (7); the grating area (8) is provided with a sewage inlet, and gratings (11) and separation nets (12) are arranged in the grating area (8) at intervals; the adjusting area (9) is communicated with the aerobic area (31) through a sewage pipeline (5), the inlet end of the sewage pipeline (5) is positioned at the bottom in the adjusting area (9), and the outlet end of the sewage pipeline (5) is positioned in the aerobic area (31);
the outlet of the nitrifying liquid return pipe (39) extends into the adjusting area (9), and the adjusting area (9) is communicated with the tank body through the nitrifying liquid return pipe (39);
the top in regulation district (9) is enclosed and is closed out sludge drying district (10), sludge drying district (10) through sludge pipe (310) with jar body intercommunication, just the entrance point of sludge pipe (310) is located the jar is internal, the exit end of sludge pipe (310) is located in sludge drying district (10).
2. The large scale civil-free sewage treatment system of claim 1, wherein: the aerobic zone (31) and the membrane zone (32) are separated by a partition (38).
3. The large scale civil-free sewage treatment system of claim 1, wherein: the through hole is positioned at the upper part of the partition plate (7).
4. The large scale civil-free sewage treatment system of claim 2, wherein: the inlet end of the sludge pipe (310) is positioned below the partition plate (38).
5. The large scale civil-free sewage treatment system of claim 1, wherein: the sewage treatment equipment further comprises a clean water discharging pipe, the inlet end of the clean water discharging pipe is connected with the top of the MBR membrane (37), the outlet end of the clean water discharging pipe penetrates through the tank body and extends out of the tank body, and a water producing pump (36) is arranged on the clean water discharging pipe.
6. The large scale civil-free sewage treatment system of claim 1, wherein: air pipes (34) are arranged in the aerobic zone (31) and the membrane zone (32), aeration discs (35) are distributed on the air pipes (34), and the air pipes (34) are connected with oxygen blowers (33).
7. The large scale civil-free sewage treatment system of claim 1, wherein: the nitrifying liquid return pipe (39) in the membrane area (32) is a vertically arranged pipeline with an open top.
8. The large scale civil-free sewage treatment system of claim 1, wherein: a submersible mixer (21) is arranged in the adjusting area (9).
9. The large scale civil-free sewage treatment system of claim 1, wherein: a lift pump (22) is arranged in the adjusting area (9), and the lift pump (22) is communicated with the aerobic area (31) through the sewage pipeline (5).
10. The large scale civil-free sewage treatment system of claim 1, wherein: the grating (11) is arranged at a sewage inlet of the grating area (8), and the separation net (12) is arranged on one side of the separation plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848226.5U CN210261462U (en) | 2019-06-06 | 2019-06-06 | Exempt from sewage treatment system of extensive civil engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848226.5U CN210261462U (en) | 2019-06-06 | 2019-06-06 | Exempt from sewage treatment system of extensive civil engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210261462U true CN210261462U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920848226.5U Active CN210261462U (en) | 2019-06-06 | 2019-06-06 | Exempt from sewage treatment system of extensive civil engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210261462U (en) |
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2019
- 2019-06-06 CN CN201920848226.5U patent/CN210261462U/en active Active
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