CN218435390U - Sludge drying wastewater treatment system - Google Patents
Sludge drying wastewater treatment system Download PDFInfo
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- CN218435390U CN218435390U CN202222485156.6U CN202222485156U CN218435390U CN 218435390 U CN218435390 U CN 218435390U CN 202222485156 U CN202222485156 U CN 202222485156U CN 218435390 U CN218435390 U CN 218435390U
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- ammonia nitrogen
- wastewater treatment
- stripping tower
- nitrogen stripping
- tower device
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Abstract
The utility model discloses a sludge drying wastewater treatment system, which comprises a regulating tank, an anaerobic tank, an aerobic tank, a sedimentation tank, an aeration biological fluidization tank and a cleaning tank which are connected in sequence through pipelines; the bottom of the sedimentation tank is connected with a sewage collection tank through a sludge guide pipe; still including integration ammonia nitrogen blows and takes off the device, integration ammonia nitrogen blows and takes off the device and wears to establish fixedly by outer ammonia nitrogen and blow off the tower device and locate outer ammonia nitrogen and blow off the tower device inside interior ammonia nitrogen and blow off the tower device and constitute. The utility model provides a pair of sludge drying effluent disposal system has add integration ammonia nitrogen and has blown off the device for ammonia nitrogen in the sludge drying effluent blows off the operating efficiency and has obtained the improvement, and ammonia nitrogen in the sludge drying effluent blows off the treatment effect also better.
Description
Technical Field
The utility model relates to a sludge wastewater treatment technical field especially relates to a sludge drying effluent disposal system.
Background
The drying condensation waste water produced in the sludge drying treatment process contains a large amount of organic matters and ammonia nitrogen due to the cracking of microorganisms in the sludge at high temperature, so that the sludge condensation waste water has the characteristics of high ammonia nitrogen, high chemical oxygen consumption and poor biodegradability. At present, a general sludge drying wastewater treatment device adopts an additional ammonia nitrogen stripping tower for pretreatment, and ammonia nitrogen is reduced. However, in the existing ammonia nitrogen stripping tower in the sludge drying wastewater treatment process, a primary ammonia nitrogen stripping tower and a secondary ammonia nitrogen stripping tower are adopted to sequentially strip ammonia nitrogen in wastewater, the stripping efficiency of the operation mode needs to be improved so as to further improve, the content of ammonia nitrogen in wastewater subjected to secondary stripping is reduced by about 80%, and the removal rate of ammonia nitrogen can be improved so as to further improve.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a sludge drying effluent disposal system.
In order to realize the purpose, the utility model adopts the following technical scheme:
a sludge drying wastewater treatment system comprises a regulating tank, an anaerobic tank, an aerobic tank, a sedimentation tank, an aeration biological fluidization tank and a cleaning tank which are sequentially connected through pipelines; the bottom of the sedimentation tank is connected with a sewage collection tank through a sludge guide pipe;
the integrated ammonia nitrogen stripping device is composed of an outer ammonia nitrogen stripping tower device and an inner ammonia nitrogen stripping tower device, wherein the lower half part of the inner ammonia nitrogen stripping tower device is fixedly arranged in the outer ammonia nitrogen stripping tower device in a penetrating way; the inner ammonia nitrogen stripping tower device is internally provided with a built-in spray pipe, a built-in packing area and a primary wastewater treatment chamber in sequence from top to bottom, two side plates of the primary wastewater treatment chamber are connected with inner walls of two sides of the outer ammonia nitrogen stripping tower device in an adhering manner, and a plurality of liquid passing holes communicated with the inner part of the inner ammonia nitrogen stripping tower device and the inner part of the outer ammonia nitrogen stripping tower device are formed in the upper plate and the lower plate; the device comprises an outer ammonia nitrogen stripping tower device, a first-stage wastewater treatment chamber, an outer spraying pipe, an upper-end outer packing region, a lower-end outer packing region and a second-stage wastewater treatment chamber, wherein the outer spraying pipe, the upper-end outer packing region, the lower-end outer packing region and the second-stage wastewater treatment chamber are sequentially arranged in the outer ammonia nitrogen stripping tower device from top to bottom; the bottom end of the side part of the inner ammonia nitrogen stripping tower device, the middle end and the bottom end of the side part of the outer ammonia nitrogen stripping tower device are both provided with blast ports, and the blast ports at the middle end are positioned between the external packing area at the upper end and the primary wastewater treatment chamber; and the top parts of the inner ammonia nitrogen stripping tower device and the outer ammonia nitrogen stripping tower device are provided with stripping gas outlets.
Preferably, zeolite is placed in the primary wastewater treatment chamber, and the pore size of the plurality of liquid passing holes is smaller than the outer diameter of the zeolite.
Preferably, zeolite is placed in the secondary wastewater treatment chamber, a filter screen is arranged on a through hole which is arranged in the secondary wastewater treatment chamber and connected with a pipeline, and the aperture size of the filter screen is smaller than the outer diameter size of the zeolite.
Preferably, the internal spray pipe and the external spray pipe are respectively connected with a liquid guide pipe, and the liquid guide pipe is connected with the lift pump.
Preferably, the blast ports on the inner ammonia nitrogen stripping tower device and the outer ammonia nitrogen stripping tower device are respectively connected with the air guide pipes, and all the air guide pipes are connected with the air blower.
Preferably, the stripping gas outlet is connected with an exhaust pipe; an air pump is arranged on the exhaust pipe.
Preferably, the cross sections of the external spray pipe and the external packing area at the upper end are both annular; the inner walls of the central holes of the external spray pipe and the external packing area at the upper end are connected with the outer walls of the two side plates of the internal ammonia nitrogen stripping tower device in a sticking way.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The integrated ammonia nitrogen stripping device can realize simultaneous stripping procedures of the outer ammonia nitrogen stripping tower device and the inner ammonia nitrogen stripping tower device, so that the stripping operation efficiency is greatly improved compared with a conventional pretreatment mode in which a primary ammonia nitrogen stripping tower and a secondary ammonia nitrogen stripping tower are sequentially and separately carried out;
(2) The mummification condensation waste water that enters into in the interior ammonia nitrogen blows off the tower device can carry out second grade ammonia nitrogen and blows off, the mummification condensation waste water that enters into in the outer ammonia nitrogen blows off the tower device also can carry out second grade ammonia nitrogen and blows off, the blow off treatment effect of this integration ammonia nitrogen blows off the device has been guaranteed, it reduces about 80% to reach the ammonia nitrogen content in the waste water, and simultaneously zeolite in this one-level waste water treatment chamber, zeolite in the second grade waste water treatment chamber can carry out tertiary ammonia nitrogen absorption to mummification condensation waste water equivalently, the absorption of level four ammonia nitrogen, consequently, compare in conventional one-level ammonia nitrogen blows off the tower, the pretreatment modes that separately goes on in proper order in second grade ammonia nitrogen blows off the tower, blow off the treatment effect better.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;
fig. 2 is an overall plan view of the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A in FIG. 2;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a front sectional view of the lift pump and the blower of the present invention after being integrally installed.
In the figure: 1. a regulating reservoir; 2. an anaerobic tank; 3. an aerobic tank; 4. a sedimentation tank; 5. an aeration biological fluidization pool; 6. cleaning the pool; 7. a sewage collecting tank; 8. an inner ammonia nitrogen stripping tower device; 9. an outer ammonia nitrogen stripping tower device; 10. a spray pipe is arranged inside; 11. a built-in packing area; 12. a primary wastewater treatment chamber; 13. a liquid passing hole; 14. a spray pipe is arranged outside; 15. the upper end is externally provided with a packing area; 16. the lower end is externally provided with a filler area; 17. a secondary wastewater treatment chamber; 18. a tuyere; 19. a stripping gas outlet; 20. an exhaust pipe; 21. a catheter; 22. an air duct; 23. a lift pump; 24. a blower.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Example (b):
as shown in fig. 1-5, a sludge drying wastewater treatment system comprises an integrated ammonia nitrogen stripping device, a regulating tank 1, an anaerobic tank 2, an aerobic tank 3, a sedimentation tank 4, an aeration biological fluidization tank 5 and a cleaning tank 6 which are sequentially connected through pipelines; the bottom of the sedimentation tank 4 is connected with a sewage collecting tank 7 through a sludge guide pipe.
The integrated ammonia nitrogen stripping device is composed of an outer ammonia nitrogen stripping tower device 9 and an inner ammonia nitrogen stripping tower device 8 which is fixedly arranged in the outer ammonia nitrogen stripping tower device 9 in a penetrating way at the lower half part.
The inside of interior ammonia nitrogen blows and takes off tower device 8 is equipped with built-in shower 10, built-in filler district 11 and one-level waste water treatment room 12 from top to bottom in proper order, and the both sides board of one-level waste water treatment room 12 pastes with the both sides inside wall of outer ammonia nitrogen blows and takes off tower device 9 and is connected, and a plurality of liquid holes 13 of crossing that are linked together inside interior ammonia nitrogen blows off tower device 8, outside ammonia nitrogen blows off tower device 9 inside are all seted up to upper plate and hypoplastron.
The inside of the outer ammonia nitrogen stripping tower device 9 is sequentially provided with an external spray pipe 14, an upper external filler area 15, a lower external filler area 16 and a second-stage wastewater treatment chamber 17 from top to bottom, the external spray pipe 14 and the upper external filler area 15 are positioned above the first-stage wastewater treatment chamber 12, the lower external filler area 16 and the second-stage wastewater treatment chamber 17 are positioned below the first-stage wastewater treatment chamber 12, and the second-stage wastewater treatment chamber 17 is connected with the regulating tank 1 through a pipeline; the bottom end of the side part of the inner ammonia nitrogen stripping tower device 8 and the middle end and the bottom end of the side part of the outer ammonia nitrogen stripping tower device 9 are both provided with blast orifices 18, and the blast orifices 18 at the middle end are positioned between the external packing area 15 at the upper end and the primary wastewater treatment chamber 12; the top parts of the inner ammonia nitrogen stripping tower device 8 and the outer ammonia nitrogen stripping tower device 9 are provided with a stripping gas outlet 19. The blowing gas outlet 19 is connected with a gas exhaust pipe 20; an air pump is provided on the exhaust pipe 20.
The cross sections of the external spray pipe 14 and the external packing area 15 at the upper end are both annular; the inner walls of the central holes of the external spray pipe 14 and the external packing area 15 at the upper end are respectively connected with the outer walls of the two side plates of the internal ammonia nitrogen stripping tower device 8 in a sticking way.
The internal spray pipe 10 and the external spray pipe 14 are respectively connected with a liquid guide pipe 21, and the liquid guide pipe 21 is connected with a lift pump 23. The blast ports 18 on the inner ammonia nitrogen stripping tower device 8 and the outer ammonia nitrogen stripping tower device 9 are respectively connected with air ducts 22, and all the air ducts 22 are connected with an air blower 24.
Zeolite is placed in the primary wastewater treatment chamber 12, and the pore size of the plurality of liquid passing holes 13 is smaller than the outer diameter of the zeolite. Zeolite is placed in the secondary wastewater treatment chamber 17, a filter screen is arranged on a through hole which is arranged in the secondary wastewater treatment chamber 17 and connected with a pipeline, and the aperture size of the filter screen is smaller than the outer diameter size of the zeolite.
The utility model discloses a theory of operation does:
dried condensed wastewater generated in the sludge drying treatment process firstly enters an internal spray pipe 10 and an external spray pipe 14 through a lifting pump, is sprayed on an internal filler region 11 and an external filler region 15 at the upper end, flows downwards into a primary wastewater treatment chamber 12 after being treated by the internal filler region 11 and the external filler region 15 at the upper end, and then flows downwards into a secondary wastewater treatment chamber 17 after flowing downwards on an external filler region 16 at the lower end in the primary wastewater treatment chamber 12 and passing through the external filler region 16;
in the process, air enters the bottom end in the inner ammonia nitrogen stripping tower device 8, the middle end in the outer ammonia nitrogen stripping tower device 9 and the bottom end in the outer ammonia nitrogen stripping tower device 9 from the three blast holes 18, the air reversely flows through a gap of the built-in packing area 11, primary ammonia nitrogen stripping is carried out on the dried condensed wastewater flowing through the built-in packing area 11 in the inner ammonia nitrogen stripping tower device 8, the air reversely flows through a gap of the external packing area 15 at the upper end, primary ammonia nitrogen stripping is carried out on the dried condensed wastewater flowing through the external packing area 15 at the upper end in the outer ammonia nitrogen stripping tower device 9, therefore, the wastewater entering the primary wastewater treatment chamber 12 is collected by the wastewater subjected to the primary ammonia nitrogen stripping, and the zeolite in the primary wastewater treatment chamber 12 is used for carrying out ammonia nitrogen absorption treatment on the wastewater subjected to the primary ammonia nitrogen stripping;
air reversely flows through a gap of the lower external filler zone 16, and dried condensed wastewater flowing through the lower external filler zone 16 in the external ammonia nitrogen stripping tower device 9 is subjected to secondary ammonia nitrogen stripping, so that the wastewater entering the secondary wastewater treatment chamber 17 is collected by the wastewater subjected to the secondary ammonia nitrogen stripping, and the zeolite in the secondary wastewater treatment chamber 17 is subjected to ammonia nitrogen absorption treatment on the wastewater subjected to the primary ammonia nitrogen stripping;
in conclusion, the integrated ammonia nitrogen stripping device can realize simultaneous stripping processes of the outer ammonia nitrogen stripping tower device 9 and the inner ammonia nitrogen stripping tower device 8, so that the stripping operation efficiency is greatly improved compared with a conventional pretreatment mode in which a primary ammonia nitrogen stripping tower and a secondary ammonia nitrogen stripping tower are sequentially and separately carried out; the second-level ammonia nitrogen stripping can be carried out on the dried condensed wastewater entering the inner ammonia nitrogen stripping tower device 8, the second-level ammonia nitrogen stripping can also be carried out on the dried condensed wastewater entering the outer ammonia nitrogen stripping tower device 9, the stripping treatment effect of the integrated ammonia nitrogen stripping device is ensured, and the content of the ammonia nitrogen in the wastewater is reduced by about 80%, however, the zeolite in the primary wastewater treatment chamber 12 and the zeolite in the secondary wastewater treatment chamber 17 are equivalent to the three-level ammonia nitrogen absorption and the four-level ammonia nitrogen absorption of the dried condensed wastewater, so that the stripping treatment effect is better compared with a conventional pretreatment mode that the primary ammonia nitrogen stripping tower and the secondary ammonia nitrogen stripping tower are sequentially and separately carried out, and the content of the ammonia nitrogen in the wastewater is reduced by about 80% -95%;
air and waste water are fully contacted on the surfaces of all fillers, ammonia in the waste water is continuously released into the air, the air carries free ammonia to move upwards and enters an exhaust pipe 20 through a stripping gas outlet 19, and the exhaust pipe 20 is connected with an ammonia nitrogen collecting device, so that secondary pollution caused by direct discharge is avoided;
the dried condensation wastewater enters the regulating tank 1 after being pretreated by the integrated ammonia nitrogen stripping device, and then is sequentially subjected to conventional wastewater treatment processes in each tank, and finally, clean water meeting the standard is obtained in the cleaning tank and is discharged or subsequently utilized.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (7)
1. A sludge drying wastewater treatment system comprises a regulating tank (1), an anaerobic tank (2), an aerobic tank (3), a sedimentation tank (4), an aeration biological fluidization tank (5) and a cleaning tank (6) which are connected in sequence through pipelines; the bottom of the sedimentation tank (4) is connected with a sewage collecting tank (7) through a sludge guide pipe; it is characterized in that the preparation method is characterized in that,
the integrated ammonia nitrogen stripping device is composed of an outer ammonia nitrogen stripping tower device (9) and an inner ammonia nitrogen stripping tower device (8) with a lower half part fixedly arranged in the outer ammonia nitrogen stripping tower device (9) in a penetrating manner; the inner ammonia nitrogen stripping tower device (8) is internally provided with a built-in spray pipe (10), a built-in filler area (11) and a primary wastewater treatment chamber (12) from top to bottom in sequence, two side plates of the primary wastewater treatment chamber (12) are connected with inner walls of two sides of the outer ammonia nitrogen stripping tower device (9) in a sticking manner, and the upper plate and the lower plate are respectively provided with a plurality of liquid passing holes (13) communicated with the inner ammonia nitrogen stripping tower device (8) and the inner ammonia nitrogen stripping tower device (9); the inside of the outer ammonia nitrogen stripping tower device (9) is sequentially provided with an external spraying pipe (14), an upper external packing area (15), a lower external packing area (16) and a secondary wastewater treatment chamber (17) from top to bottom, the external spraying pipe (14) and the upper external packing area (15) are positioned above the primary wastewater treatment chamber (12), the lower external packing area (16) and the secondary wastewater treatment chamber (17) are positioned below the primary wastewater treatment chamber (12), and the secondary wastewater treatment chamber (17) is connected with the adjusting tank (1) through a pipeline; blast orifices (18) are respectively formed at the bottom end of the side part of the inner ammonia nitrogen stripping tower device (8) and the middle end and the bottom end of the side part of the outer ammonia nitrogen stripping tower device (9), and the blast orifices (18) at the middle end are positioned between the external packing area (15) at the upper end and the primary wastewater treatment chamber (12); and a stripping gas outlet (19) is formed at the top of the inner ammonia nitrogen stripping tower device (8) and the top of the outer ammonia nitrogen stripping tower device (9).
2. The sludge drying wastewater treatment system as claimed in claim 1, wherein zeolite is placed in the primary wastewater treatment chamber (12), and the pore size of the plurality of liquid passing holes (13) is smaller than the outer diameter of the zeolite.
3. The sludge drying wastewater treatment system according to claim 1, wherein zeolite is placed in the secondary wastewater treatment chamber (17), a filter screen is arranged on a through hole which is formed in the secondary wastewater treatment chamber (17) and connected with a pipeline, and the aperture size of the filter screen is smaller than the outer diameter size of the zeolite.
4. The sludge drying wastewater treatment system according to claim 1, 2 or 3, wherein the internal spray pipe (10) and the external spray pipe (14) are respectively connected with a liquid guide pipe (21), and the liquid guide pipe (21) is connected with a lift pump (23).
5. The sludge drying wastewater treatment system according to the claim 1, 2 or 3, characterized in that the blast ports (18) on the inner ammonia nitrogen stripping tower device (8) and the outer ammonia nitrogen stripping tower device (9) are respectively connected with air ducts (22), and all the air ducts (22) are connected with a blower (24).
6. The sludge drying wastewater treatment system according to claim 1, 2 or 3, wherein the blow-out gas outlet (19) is connected with a gas exhaust pipe (20); an air pump is arranged on the exhaust pipe (20).
7. The sludge drying wastewater treatment system according to claim 1, 2 or 3, wherein the cross sections of the external spray pipe (14) and the external upper filler zone (15) are annular; the inner walls of the central holes of the external spray pipe (14) and the external packing area (15) at the upper end are respectively connected with the outer walls of the two side plates of the internal ammonia nitrogen stripping tower device (8) in a sticking way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485156.6U CN218435390U (en) | 2022-09-20 | 2022-09-20 | Sludge drying wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485156.6U CN218435390U (en) | 2022-09-20 | 2022-09-20 | Sludge drying wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218435390U true CN218435390U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222485156.6U Active CN218435390U (en) | 2022-09-20 | 2022-09-20 | Sludge drying wastewater treatment system |
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|---|---|
| CN (1) | CN218435390U (en) |
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- 2022-09-20 CN CN202222485156.6U patent/CN218435390U/en active Active
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